CN105757446A - Heat insulation method for vacuum heat insulation copious cooling pressure container - Google Patents
Heat insulation method for vacuum heat insulation copious cooling pressure container Download PDFInfo
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- CN105757446A CN105757446A CN201610279562.3A CN201610279562A CN105757446A CN 105757446 A CN105757446 A CN 105757446A CN 201610279562 A CN201610279562 A CN 201610279562A CN 105757446 A CN105757446 A CN 105757446A
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- thermal insulation
- heat insulation
- adiabatic
- insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0308—Radiation shield
- F17C2203/032—Multi-sheet layers
Abstract
The invention provides a heat insulation method for a vacuum heat insulation copious cooling pressure container.An inner container body of the vacuum heat insulation copious cooling pressure container is wrapped by heat insulation quilts to form a heat insulation structure, the heat insulation quilts comprise the end cover heat insulation quilt and the cylinder heat insulation quilt, and the heat insulation structure is formed sequentially through heat insulation quilt prefabricating and heat insulation quilt binding; heat insulation quilt prefabricating is achieved through the steps that firstly, a reflecting screen of a heat insulation material and a spacing material are composited layer by layer in an alternate and spaced mode to form heat insulation units; secondly, the composited heat insulation units are composited into heat insulation blocks according to the layer number requirements; lastly, tying bands used for binding are fixedly connected to the heat insulation blocks; heat insulation quilt binding is achieved through the steps that cylinder heat insulation quilt binding is firstly completed, and then end cover heat insulation quilt binding is completed.According to the method, segmented operation of the heat insulation quilts can be easily achieved, the manufacturing and binding efficiency of the heat insulation material is improved, the risks that the heat insulation material is damaged and polluted are relieved or even avoided, and waste of the heat insulation material is reduced to the maximum limit.
Description
Technical field
The present invention relates to the Thermo Isolation Technique field of vacuum insulation deep cooling pressure vessel, especially relate to the insulation method of a kind of vacuum insulation deep cooling pressure vessel.
Background technology
The conventional adiabatic method of vacuum insulation deep cooling pressure vessel mainly has two kinds: vacuum-powders insulation and high vacuum multiple layer heat insulation.For vacuum-powders insulation mode, namely at container interlayer filling heat insulator, it is generally filling expanded perlite (pearlife), and it is evacuated to regulation requirement, and this kind of adiabatic method, processing, making are simply, the Technology that adiabator is filled is comparatively ripe and stable, and the vacuum level requirements of container interlayer is not as high, vacuum is readily available, and is generally used on vertical vacuum thermal insulation deep cooling pressure vessel.But, adopting the pressure vessel of this kind of adiabatic method in use for some time, adiabator (pearlife) can sink, it is easy to the top airbreak of build-up of pressure container, so that pressure vessel local condensation or frosting, the properly functioning of pressure vessel time serious, can be affected.
For high vacuum multiple layer heat insulation mode, namely it is wound around wrapping multilayer insulant at the inner pressurd vessel of pressure vessel and interlayer pipeline outer surface, and heated and be evacuated to regulation requirement, and this kind of adiabatic method is obviously improved compared with the insulation effect of vacuum-powders insulation mode.In this kind of adiabatic method, owing to adiabator is to be composited by radiation shield, interval insulant, radiation shield can be effectively reduced the radiant heat transfer between interior outer container, and interval insulant (is generally low-temperature thermal insulation paper) and can be effectively reduced the conduction of heat between adiabator；Simultaneously as the sealing vacuum general higher (generally high 2 orders of magnitude than vacuum-powders insulation mode) that interlayer is when evacuating, therefore, the condition of high vacuum degree of pressure vessel interlayer significantly reduces the convection heat transfer' heat-transfer by convection between interior outer container.This kind of adiabatic method also has compared with vacuum-powders insulation mode that mezzanine space lightweight, required is little, do not result in container sweats due to airbreak and frost.At present, this kind of adiabatic method is widely used on vacuum insulation deep cooling pressure vessel, especially applies very extensive on mobile vacuum thermal insulation deep cooling pressure vessel and the horizontal vacuum thermal insulation deep cooling pressure vessel that insulation requirements is higher.
In traditional high vacuum multiple layer heat insulation method, vacuum insulation deep cooling pressure vessel is when carrying out inner pressurd vessel and the wrapping operation of interlayer pipeline multilayer insulant, compound and the wrapping of adiabator manually complete with manual operations substantially, namely, when needing the wrapping carrying out multilayer insulant, need first to be placed on the turning rolls of adiabator bundling machine by the radiation shield of web-like adiabator and interval insulant, carry out compound then manually discontinuously, in multiple times by the radiation shield of adiabator and interval insulant；When wrapping, it is also desirable to manually carry out winding wrapping repeatedly, and the seam of adiabator is manually sewed up with cotton thread, finally, for ensureing that adiabator does not come off, in addition it is also necessary to wrap up one layer of copper mesh at adiabator outer surface.Complete from the parcel being compound to last copper mesh of adiabator started, a lot of operation sequence of intermediate demand, and be essentially all and complete by hand, thus causing that dressing time is long, adiabator also easily makes moist, and in manual handling thereof, adiabator is fragile and is contaminated.It addition, randomness when existing manual Wrapping technical is due to wrapping is relatively big, causing that the consumption of adiabator is generally the 130%～140% of Theoretical Calculation consumption, therefore, the coefficient of waste of adiabator is bigger.
Summary of the invention
The technical problem to be solved in the present invention is: for prior art Problems existing, it is provided that the insulation method of a kind of vacuum insulation deep cooling pressure vessel, improves making and the wrapping efficiency of adiabator, reduces adiabator and risk damaged, that pollute occurs.
The technical problem to be solved in the present invention realizes by the following technical solutions: the insulation method of a kind of vacuum insulation deep cooling pressure vessel, the inner pressurd vessel of vacuum insulation deep cooling pressure vessel is coated with adiabatic quilt and forms heat insulating construction, described thermal insulation is divided into end socket thermal insulation quilt and cylinder thermal insulation quilt, the formation of described heat insulating construction sequentially passes through the wrapping of the prefabricated and adiabatic quilt of adiabatic quilt, and described adiabatic the prefabricated of quilt includes:
First, the radiation shield of adiabator and interval insulant are formed insulating unit with alternate intervals mode successively compound；
Then, require to be combined into heat-insulating block according to the number of plies by insulating unit good for compound；
Finally, the fixing frenulum connected for wrapping up on heat-insulating block；
The wrapping of described adiabatic quilt is the wrapping first completing cylinder thermal insulation quilt, then completes the wrapping of end socket thermal insulation quilt.
Preferably, described end socket thermal insulation quilt, cylinder are adiabatic by the some interlayer barrier materials of compound outside the upper radiation shield being close to inner pressurd vessel outer surface, form adiabatic sealing coat.
Preferably, described end socket thermal insulation by, cylinder adiabatic by the upper radiation shield being close to inner pressurd vessel outer surface with interval insulant compound before, first described radiation shield is punched.
Preferably, described end socket thermal insulation quilt, cylinder thermal insulation, are punched at interval of 100mm-500mm in this radiation shield length and width when punching by the upper radiation shield being close to inner pressurd vessel outer surface.
Preferably, described insulating unit is at compound tense, the fabric width 10-18mm wider than the fabric width of radiation shield of selected interval insulant.
Preferably, described insulating unit is compounded to form the heat-insulating block of staggered floor construction in length and width in the mode of misplacing one by one.
Preferably, described insulating unit misplaces respectively on length and width direction and is compounded to form the heat-insulating block of staggered floor construction after 90-110mm.
Preferably, described end socket thermal insulation is prefabricated into two semicircle adiabatic quilts, it is upper semi-circle thermal insulation quilt, lower half circle thermal insulation quilt respectively, described upper semi-circle is adiabatic is connected some first frenulums by fixing on straight flange end, described lower half circle is adiabatic is connected some 3rd frenulums by fixing on straight flange end, and described first frenulum and the 3rd frenulum are connected respectively.
Preferably, described upper semi-circle thermal insulation is adiabatic by after being bundled into cylinder thermal insulation respectively by, lower half circle, then upper semi-circle thermal insulation is mutually lapped by the first frenulum, the 3rd frenulum by the straight flange end of, lower half circle thermal insulation quilt.
Preferably, described cylinder is adiabatic to be spliced by unit by some prefabricated cylinder thermal insulation, adiabatic by connection circumference undertaking band fixing on unit length direction at cylinder, at adiabatic the first frenulum and the second frenulum of being respectively fixedly connected with by the both sides on unit width of cylinder, adjacent cylinder is adiabatic to be formed by connecting cylinder thermal insulation quilt by the first frenulum, the second frenulum by unit.
Compared with prior art, the invention has the beneficial effects as follows: by the thermal insulation on the inner pressurd vessel being coated on vacuum insulation deep cooling pressure vessel is divided into end socket thermal insulation quilt, cylinder thermal insulation quilt, and carry out end socket thermal insulation quilt respectively, cylinder thermal insulation quilt prefabricated, wrapping, form the thermal insulation quilt of combinative structure, such that it is able to be easily achieved the segmentation operation of adiabatic quilt, and then mechanized operation can be realized by means of special purpose machinery, considerably reduce labor workload, save the activity duration, especially the wrapping used time is less, even avoid adiabator in wrapping process making moist owing to being exposed in atmospheric environment overlong time and be contaminated such that it is able to alleviate, the heating follow-up for container and evacuation operation are provided convenience, excellent process conditions, also make the vacuum life of container be further improved simultaneously.It addition, by segmentation operation, be also convenient for realizing corresponding thermal insulation by when prefabricated, can according to single container custom-made, improve making and the wrapping efficiency of adiabator, reduce adiabator and risk damaged, that pollute occurs, and decrease the waste of adiabator to greatest extent.
Accompanying drawing explanation
Fig. 1 is the heat insulating construction schematic diagram of vacuum insulation deep cooling pressure vessel.
Fig. 2 is the partial enlarged drawing at C place in Fig. 1.
Fig. 3 is A (B) direction view in Fig. 1.
Fig. 4 is the structural representation of the upper semi-circle thermal insulation quilt in Fig. 3.
Fig. 5 is the structural representation of the lower half circle thermal insulation quilt in Fig. 3.
Fig. 6 is that cylinder is adiabatic by the structural representation of unit.
Fig. 7 is the structural representation of heat-insulating block.
Fig. 8 is the overlap joint schematic diagram between adiabatic quilt and inner pressurd vessel.
Labelling in figure: 1-end socket thermal insulation quilt, 2-cylinder thermal insulation quilt, 3-circumference accepts band, 4-inner pressurd vessel, 5-the first frenulum, 6-the second frenulum, 7-circumference accepts band, 8-cylinder is adiabatic by unit, 9-heat-insulating block, 10-insulating unit, 11-thermal insulation sealing coat, 12-the 3rd frenulum, 101-upper semi-circle thermal insulation quilt, 102-lower half circle thermal insulation quilt.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Common vacuum insulation deep cooling pressure vessel includes inner pressurd vessel, outer container and interlayer pipeline.Vacuum insulation deep cooling pressure vessel as shown in Figure 1, the main part of its inner pressurd vessel 4 is cylinder, is the end socket being connected with barrel soldering respectively at cylinder two ends, and described end socket outer surface is ellipsoid, the adiabatic quilt of cladding on inner pressurd vessel 4 outer surface.For convenient explanation, described thermal insulation is divided into: end socket is adiabatic adiabatic by 2 by 1 and cylinder, the adiabatic end socket portion being coated with described inner pressurd vessel 4 by 1 of described end socket, the adiabatic barrel being coated with described inner pressurd vessel 4 by 2 of described cylinder, and described end socket is adiabatic adiabatic with adjacent cylinder is linked into an integrated entity at cylinder two ends by 2 by 1, it is collectively forming the heat insulating construction of vacuum insulation deep cooling pressure vessel, to realize the thermal insulation of vacuum insulation deep cooling pressure vessel.
The insulation method of above-mentioned vacuum insulation deep cooling pressure vessel, specifically includes that the wrapping of the prefabricated and adiabatic quilt of adiabatic quilt.Specifically:
1st step, adiabatic quilt prefabricated.Thermal insulation quilt described here prefabricated, including:
Firstly, it is necessary to the radiation shield of adiabator is formed insulating unit 10 according to design size and the design number of plies with alternate intervals mode successively compound with interval insulant；At compound tense, select the fabric width generally 10-18mm wider than the fabric width of radiation shield of interval insulant, to prevent radiation shield from contacting with each other generation heat " short circuit ", thus forming heat-transfer path.
The radiation shield of described adiabator mainly has: aluminium foil, aluminized mylar.Wherein, aluminium foil radiation shield is simple metal manufacture, has the features such as venting rate is low, reflecting effect good, not combustion, and being generally used for medium has the occasion of flame-retardancy requirements.Aluminized mylar is composite, aluminizes base material is two-sided, and material outgassing rate is big compared with aluminium foil, but there is gloss continuous, bright on surface, and reflecting effect is good, not fire-retardant, and the strength of materials is better, and being generally used for medium does not have the occasion of flame-retardancy requirements.
Described interval insulant generally mainly has: all-glass paper, chemical fiber paper, glass fabric, synthetic fibers screen cloth.Wherein, all-glass paper has relatively low outgassing rate, does not fire, but intensity own is relatively low, frangible, and being generally used for medium has the occasion of flame-retardancy requirements.The venting rate of chemical fiber paper is big compared with all-glass paper, not fire-retardant, but intensity own is better, and being generally used for medium does not have the occasion of flame-retardancy requirements.
Described radiation shield and interval insulant are at compound tense, it is possible to a kind of radiation shield and interval insulant that menu is only carry out interval compound, it is also possible to selecting multiple radiation shield and interval insulant mix and match compound use, specifically used situation is determined by the requirement of use occasion.
Then, insulating unit 10 good for compound is carried out cutting according to design size, then requires to carry out compound according to the design number of plies by the insulating unit 10 cut, be compounded to form the heat-insulating block 9 of staggered floor construction in length and width in the mode of misplacing one by one, as shown in Figure 7.Carrying out compound tense, the compound number of plies of heat-insulating block 9 is advisable less than 40 layers with radiation shield.Cutting and the compound of described insulating unit 10 can all be completed by special purpose machinery, human assistance.
Finally, on heat-insulating block 9, some heat-insulating blocks 9 are connected by the corresponding frenulum of fixing connection by frenulum, are just prefabricated into adiabatic quilt.Described frenulum is usually glass fibre belt, and directly sews on heat-insulating block 9.The glass fibre belt of described wrapping be generally adopted defat, dewaxing after glass-fiber-fabric make, to ensure that it has relatively low outgassing rate and higher intensity.Use occasion according to adiabatic quilt is different, it is possible to be divided into: end socket adiabatic by 1, cylinder adiabatic by 2 and Sandwich pipeline thermal insulation quilt.
For end socket adiabatic by 1 prefabricated, according to end socket adiabatic by 1 profile, first calculate, according to the external surface area in the end socket portion of inner pressurd vessel 4, the diameter that end socket thermal insulation is by 1, then, add end socket adiabatic by 1 adiabatic with cylinder by 2 overlap, the adiabatic overall dimensions by 1 of required end socket can be determined.
Consider when carrying out the wrapping of adiabatic quilt, the end socket portion of described inner pressurd vessel 4 has the interlayer pipeline stretched out, for this, two semicircle adiabatic quilts can be prefabricated into by 1 by adiabatic for end socket, it is that upper semi-circle as shown in Figure 3, Figure 4 is adiabatic adiabatic by 102 by 101 and lower half circle as shown in Fig. 3, Fig. 5 respectively, with facilitate carry out end socket adiabatic by 1 wrapping work time, it is possible to according to the interlayer pipeline stretched out to semicircular upper semi-circle adiabatic by 101, lower half circle thermal insulation carried out corresponding cutting by 102.
Adiabatic by the prefabrication process of 1 at end socket, insulating unit 10 can be cut into semicircle according to design size, again with semicircle insulating unit 10 according to every 20 layers of radiation shield for 1 heat-insulating block 9, namely when radiation shield is 40 layers, having 2 heat-insulating blocks 9, rule is combined into upper semi-circle heat-insulating block, lower half circle heat-insulating block according to this.Described upper semi-circle heat-insulating block, the close cylindrical side of lower half circle heat-insulating block circumferencial direction on to sew, mode is fixing connects the second frenulum 6 and circumference accepts band 7, described second frenulum 6 arranges several, and be distributed ringwise in equidistant mode, after the straight flange end of upper semi-circle heat-insulating block fixes, in sewing mode, the first frenulum 5 connecting some equidistant arrangements, form upper semi-circle as shown in Figure 4 adiabatic by 101；Similarly, after the straight flange end of lower half circle heat-insulating block fixes, in sewing mode, the 3rd frenulum 12 connecting some equidistant arrangements, form lower half circle as shown in Figure 5 adiabatic by 102.Wherein, the first described frenulum 5 is banding glass fibre belt, and the second described frenulum the 6, the 3rd frenulum 12 is ring-type glass fibre belt, and it is circumferential band glass fibre belt that described circumference accepts band 7；Further, when sewing the second frenulum 6, circumference undertaking band 7, accept with 7 overlapped bearings with circumference at the second frenulum 6, should carry out intersecting and sew, namely first sew square box in the corresponding bearing that connects, then in square box, sew X-shaped, as in figure 2 it is shown, to ensure sewing intensity；Described circumference is accepted and also should be sewed on band 7 and the circumferencial direction of its place heat-insulating block 9 bearing, be with to prevent the second frenulum 6, circumference from accepting 7 pull in wrapping process de-.By coordinating of the first frenulum 5 and the 3rd frenulum 12, it is possible to facilitate that upper semi-circle is adiabatic adiabatic with lower half circle to be interconnected by 102 by 101, form circular end socket as shown in Figure 3 adiabatic by 1, for wrapping up the end socket part of vacuum insulation deep cooling pressure vessel.
For cylinder adiabatic by 2 prefabricated, first according to the cylinder external diameter of inner pressurd vessel 4 and cylinder adiabatic by 2 design thickness, calculate cylinder adiabatic by 24 one weeks required length of winding inner pressurd vessel, thus, the adiabatic circumferential lengths by 2 of cylinder is just determined, then, the barrel lenght according to inner pressurd vessel 4, calculate required cylinder adiabatic by 2 width quantity.
Consider that the shell portion of inner pressurd vessel 4 is long, if the adiabatic shell portion being coated with inner pressurd vessels 4 by 2 of the cylinder of processing monoblock, not only because of limit by radiation shield and interval insulant fabric width and difficulty of processing greatly, and processing cost is high.In order to improve the prefabricated efficiency that cylinder thermal insulation is by 2, save the processing cost that cylinder thermal insulation is by 2, it is possible to cylinder thermal insulation be designed to be by 2 and be spliced by unit 8 by some prefabricated cylinders thermal insulation.Described cylinder is adiabatic by unit 8 as shown in Figure 6, in cylinder thermal insulation by unit 8 length direction, to sew, mode is fixing connects circumferential band 3 of accepting, and by the both sides on unit 8 width, to sew, mode is fixing connects the first frenulum 5 and the second frenulum 6 respectively in cylinder thermal insulation.Adjacent cylinder is adiabatic is formed by connecting cylinder thermal insulation by 2 by unit 8 by first frenulum the 5, second frenulum 6.Concrete calculate required cylinder adiabatic quantity by unit 8 time, it shall be guaranteed that cylinder is adiabatic is adopted formed cylinder body adiabatic by the width of unit 8 by preferential on the width of 2, it is impossible to when rounding, by unit 8, last block cylinder thermal insulation is carried out corresponding cutting.
By above calculating, adiabatic length, width dimensions and the cylinder thermal insulation by 2 of cylinder is determined by the requirement of unit 8, next only need to by the size of design carry out cylinder adiabatic by 2 prefabricated.
Carry out cylinder adiabatic by 2 prefabricated time, insulating unit 10 can be cut into rectangle according to design size, then the insulating unit 10 after cutting is misplaced respectively on length and width direction and be compounded to form the heat-insulating block 9 of staggered floor construction after 90-110mm, namely 4 insulating units 10 are respectively arranged with 3 staggered floors on length and width direction, as shown in Figure 7.When prefabricated, it is possible to every 10 layers of radiation shield are 1 heat-insulating block 9, when namely radiation shield is 40 layers, have 4 heat-insulating blocks 9.After adopting such structural design, when carrying out wrapping operation, the staggered floor at two ends will be mutually lapped in the longitudinal direction, such that it is able to due to wrapping error, the heat-insulating block 9 that causes causes " airbreak " because not Guan Bi when being effectively prevented wrapping, or intersection too much cause cylinder adiabatic by 2 local thickness and the problem such as the number of plies is too much；Meanwhile, the adjacent mutual staggered floor of heat-insulating block 9 can also be overlapped in the direction of the width, thus heat-insulating block 9 is connected as a whole in an orderly manner.Note: heat-insulating block 9 described herein is adiabatic by unit 8 according to the cylinder formed after design size cutting as shown in Figure 6.
After the insulating unit 10 for cylinder is combined into heat-insulating block 9, need on the length direction of heat-insulating block 9 to sew mode fixing connection circumference undertaking band 3, and the both sides on heat-insulating block 9 width are respectively to sew mode fixing connection the first frenulum 5 and the second frenulum 6, as shown in Figure 6.Wherein, first described frenulum the 5, second frenulum 6 is respectively provided with some, and is distributed in equidistant mode；3 employing glass fibre belts are with in described circumference undertaking, arrange some altogether, and arranged in parallel in equidistant mode, and connection the first frenulum 5 is fixed to sew mode in the one end accepted with 3 each circumference, and also to sew, mode is fixing connects the second frenulum 6 to the other end；Accept band 3 and first connecting bearing, accept the connection bearing between band 3 and the second frenulum 6 in circumference between frenulum 5 in circumference, should carry out intersecting sewing respectively, to ensure to sew intensity, it is prevented that pull de-when wrapping up operation.When wrapping, have only to put in the first frenulum 5 in the hollow ring of the second frenulum 6, and the length stretching into the second frenulum 6 hollow ring by adjusting the first frenulum 5 controls the wrapping elasticity that cylinder thermal insulation is by 2, after the adiabatic wrapping elasticity by 2 of cylinder is adjusted, first frenulum 5 and the second frenulum 6 are tied a knot mutually tie-down just can, as shown in Figure 2.
When insulating unit 10 is carried out cutting according to design size, difference according to use occasion, the insulating unit 10 being used for interlayer pipeline can be cut into rectangle, then insulating unit 10 is combined with each other according to the design number of plies, and it is combined into web-like, form interlayer pipeline insulation block, be used for wrapping up interlayer pipeline portions.Described interlayer pipeline insulation block need not sew the glass fibre belt for connecting, direct on-demand cutting wrapping up during wrapping.
2nd step, the wrapping of adiabatic quilt.The wrapping of thermal insulation quilt described here, refer to by adiabatic for prefabricated end socket by 1, the adiabatic outer surface being wound around the wrapping inner pressurd vessel 4 at vacuum insulation deep cooling pressure vessel and interlayer pipeline by 2 of cylinder, then, by adjusting and fasten first frenulum the 5, second frenulum 6 of correspondence, the 3rd frenulum 12 etc., by adiabatic for end socket by 1, cylinder thermal insulation is fixed on inner pressurd vessel 4 and interlayer pipeline by 2.When concrete wrapping operation, first complete the wrapping that cylinder thermal insulation is by 2, then complete the wrapping that end socket thermal insulation is by 1.Specifically:
Be spliced by unit 8 by a number of cylinder thermal insulation owing to cylinder is adiabatic by 2, therefore, carry out cylinder adiabatic by 2 wrapping operation time,
First, will be located in cylinder thermal insulation to be adjusted by first frenulum the 5, second frenulum 6 on unit 8 length direction and fasten；
Then, by unit 8 width in cylinder thermal insulation two pieces of adjacent cylinders thermal insulation are adjusted and fasten by being positioned at cylinder thermal insulation by the first frenulum 5 on unit 8 or the second mutual correspondence of frenulum 6 by unit 8, and wrap up the other end by wrapping order successively from inner pressurd vessel 4 one end, it is ensured that cylinder thermal insulation will not be subjected to displacement from each other by unit 8.
When wrapping, two pieces of adjacent cylinder thermal insulation should be staggered mutually by the seam on unit 8 length direction, so can so that cylinder thermal insulation wrapped up by 2 after, thickness uniformity, outward appearance are regular everywhere, are conducive to the later stage to carry out the suit of inside and outside container of vacuum insulation deep cooling pressure vessel and the heating evacuation work of interlayer.
After cylinder thermal insulation has been wrapped up by 2, the wrapping that end socket thermal insulation is by 1 can be carried out, specifically:
Carry out end socket adiabatic by 1 wrapping operation time,
First, by adiabatic for upper semi-circle by 101, lower half circle thermal insulation be wrapped in end socket portion by 102 outer surface on, and so as to adiabatic with cylinder by 2 overlap joints to determine relative position.
Then, end socket thermal insulation is carried out cutting by 1 by the position according to stretching out interlayer pipeline on end socket, is passed by 1 from end socket thermal insulation by interlayer pipeline.End socket thermal insulation is divided into upper semi-circle by 1 adiabatic adiabatic by 102 two parts by 101 and lower half circle, so be conducive to the wrapping of interlayer pipeline, and when wrapping, it is also possible to by interlayer pipeline extended position on end socket, end socket thermal insulation is carried out cutting by 1, in order to interlayer pipeline is adiabatic by 1 through end socket.
Next, will be close to the cylinder of end socket side, adiabatic to be pressed in end socket by unit 8 adiabatic by below 1, and will be located in cylinder adiabatic by the first frenulum 5 on unit 8 with to be positioned at end socket adiabatic by the corresponding connection of the second frenulum 6 on 1, by adjusting and fasten first frenulum the 5, second frenulum 6, cylinder just can be completed adiabatic adiabatic by the connection between 1 by 2 and end socket.It is ring-type glass fibre belt owing to end socket is adiabatic by the second frenulum 6 on 1, therefore, the first frenulum 5 that cylinder thermal insulation near end socket portion, inner pressurd vessel 4 two ends is sewed in width both sides by unit 8 is banding glass fibre belt, to facilitate, end socket is adiabatic by the overlap joint between unit 8 and is adjusted elasticity by 1 and cylinder thermal insulation, improves the wrapping efficiency of adiabatic quilt.In order to improve wrapping work efficiency further, ensure wrapping quality, it is possible to by adiabatic for upper semi-circle by 101, the adiabatic sewing spacing by the second frenulum 6 on 102 of lower half circle be arranged to corresponding by the sewing spacing of the first frenulum 5 on unit 8 width with cylinder thermal insulation.
Finally, until upper semi-circle adiabatic by 101, lower half circle is adiabatic bandaged by 2 with cylinder thermal insulation respectively by 102 after, by adiabatic for upper semi-circle by 101, the adiabatic straight flange end by 102 of lower half circle is mutually lapped by the first frenulum the 5, the 3rd frenulum 12, and the first frenulum the 5, the 3rd frenulum 12 is adjusted and fastened.So far, the heat insulating construction of vacuum insulation deep cooling pressure vessel is fully completed.
When carrying out wrapping operation, generally require end socket adiabatic by 1, cylinder adiabatic by 2 " pine and do not collapse ", if end socket adiabatic by 1, cylinder is adiabatic is wrapped up tensions by 2, will cause that the gas being adsorbed on adiabator surface when evacuating is difficult to effusion, cause evacuated time length and the undesirable consequence of insulation effect.If end socket adiabatic by 1, cylinder thermal insulation wrapped up pine by 2, it will cause coming off of container " airbreak " locally and adiabator, thus affecting insulation effect.Usually, end socket adiabatic by 1, the adiabatic layer density domination by 2 wrappings of cylinder be advisable at 23-28 layer/cm.
Consider that inner pressurd vessel 4 is generally GB150-1998, in order to avoid inner pressurd vessel 4 outer surface and end socket adiabatic by 1, cylinder is adiabatic is close on 2 between the radiation shield of inner pressurd vessel 4 outer surface and heat " short circuit " occurs because directly contacting, can end socket adiabatic by 1, cylinder adiabatic by 2 on the radiation shield being close to inner pressurd vessel 4 outer surface outside compound 3-5 interlayer barrier material to form adiabatic sealing coat 11, as shown in Figure 8.End socket adiabatic by 1, cylinder adiabatic by 2 on the radiation shield being close to inner pressurd vessel 4 outer surface and interval insulant compound before, should first punch, namely stamp the hole of Φ 6mm-Φ 8mm in this radiation shield length and width at interval of 100mm-500mm, the gas being adsorbed on adiabator surface during to facilitate evacuation can be overflowed from this aperture.
After the prefabricated wrapping of inner pressurd vessel 4 body completes, in addition it is also necessary to adopt Sandwich pipeline thermal insulation to be wrapped up the Sandwich pipeline of vacuum insulation deep cooling pressure vessel.Prefabricated, the wrapping of described Sandwich pipeline thermal insulation quilt substantially with above-mentioned end socket adiabatic by 1, cylinder adiabatic by 2 prefabricated, wrapping method is identical, its difference is in that the glass fibre belt that Sandwich pipeline thermal insulation is not sewed above for wrapping up.When carrying out the prefabricated wrapping of Sandwich pipeline, it is from the adiabatic adiabator certain by upper cutting of Sandwich pipeline and be wound around wrapping at Sandwich pipeline outer surface according to pipeline specifications, then, the banding glass fibre belt separated is adopted to be wound around by outer surface and tighten fixing in thermal insulation.
When cylinder adiabatic by 2, end socket is adiabatic all wrap up by 1 and Sandwich pipeline thermal insulation after, carry out the visual examination of entirety, should ensure that adiabatic wrapping should be solid and reliable everywhere by without slack and undisciplined phenomenon, outward appearance neatly, without ledge.
After adopting the present invention,
First, the prefabricated of corresponding adiabatic quilt can be carried out by designing requirement, when prefabricated, the adiabatic compound of quilt, cutting and sewing can complete by means of special purpose machinery, by by means of mechanized operation, labor workload can be greatly lowered, and farthest avoid damage and the pollution of the adiabator manually caused at manual compound tense；It addition, by the machinery prefabricated thermal insulation of scale, also be there is neat appearance, thickness is uniform, mechanical damage is few and pollutes the plurality of advantages such as little.
Second, corresponding adiabatic by when prefabricated, it is possible to according to single container custom-made, relative to traditional Wrapping technical, to there is the advantages such as materials are less, coefficient of waste is little.When carrying out corresponding thermal insulation by size design, the adiabator of regular size can be preferentially selected according to the overall dimensions of container, when can not round, only last block thermal insulation need to be carried out cutting by design size, improve making and the wrapping efficiency of adiabator, reduce adiabator and risk damaged, that pollute occurs.
3rd, when wrapping, have only to corresponding thermal insulation is wrapped in inner pressurd vessel and the outer surface of interlayer pipeline successively, and by fastening corresponding glass fibre belt, just can simply and efficiently complete the wrapping of adiabatic quilt, there is the advantages such as simple to operate, wrapping efficiency is high, the wrapping used time is few, particularly with the deep cooling vacuum insulation pressure vessel that volume is bigger, its dressing time can from before within 2-3 days, shorten to half a day.Owing to shortening the time of wrapping adiabator, even avoid adiabator in wrapping process making moist owing to being exposed in atmospheric environment overlong time and be contaminated such that it is able to alleviate, the heating follow-up for container and evacuation operation are provided convenience, excellent process conditions, also make the vacuum life of container be further improved simultaneously.
4th, although in the prefabrication process of early stage thermal insulation quilt, the adiabatic compound of quilt, cutting and sewing can complete by means of machine, and the cost taken is relatively big, but, in the wrapping process of later stage thermal insulation quilt, required workload is less, and thermal insulation is also little by the waste of material when prefabricated, wrapping, therefore, the integrated cost of the present invention is relatively low, thus having good economy and practicality.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, it is noted that all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (10)
1. the insulation method of a vacuum insulation deep cooling pressure vessel, heat insulating construction is formed at inner pressurd vessel (4) the adiabatic quilt of above cladding of vacuum insulation deep cooling pressure vessel, it is characterized in that: described thermal insulation is divided into end socket thermal insulation by (1) and cylinder thermal insulation quilt (2), the formation of described heat insulating construction sequentially passes through the wrapping of the prefabricated and adiabatic quilt of adiabatic quilt, and described adiabatic the prefabricated of quilt includes:
First, the radiation shield of adiabator and interval insulant are formed insulating unit (10) with alternate intervals mode successively compound；
Then, require to be combined into heat-insulating block (9) according to the number of plies by insulating unit (10) good for compound；
Finally, at the upper fixing frenulum connected for wrapping up of heat-insulating block (9)；
The wrapping of described adiabatic quilt is first to complete cylinder thermal insulation by the wrapping of (2), then completes end socket thermal insulation by the wrapping of (1).
2. the insulation method of vacuum insulation deep cooling pressure vessel according to claim 1, it is characterized in that: described end socket thermal insulation by the some interlayer barrier materials of compound outside the radiation shield being close to inner pressurd vessel (4) outer surface on (2), is formed adiabatic sealing coat (11) by (1), cylinder thermal insulation.
3. the insulation method of vacuum insulation deep cooling pressure vessel according to claim 2, it is characterized in that: described end socket thermal insulation by (1), cylinder thermal insulation by the radiation shield being close to inner pressurd vessel (4) outer surface on (2) with interval insulant compound before, first described radiation shield is punched.
4. the insulation method of vacuum insulation deep cooling pressure vessel according to claim 3, it is characterized in that: described end socket thermal insulation when punching, is punched at interval of 100mm-500mm by the radiation shield being close to inner pressurd vessel (4) outer surface on (2) by (1), cylinder thermal insulation in this radiation shield length and width.
5. the insulation method of the vacuum insulation deep cooling pressure vessel according to any one of claim 1-4, it is characterised in that: described insulating unit (10) is at compound tense, the fabric width 10-18mm wider than the fabric width of radiation shield of selected interval insulant.
6. the insulation method of vacuum insulation deep cooling pressure vessel according to claim 5, it is characterised in that: described insulating unit (10) is compounded to form the heat-insulating block of staggered floor construction (9) in length and width in the mode of misplacing one by one.
7. the insulation method of vacuum insulation deep cooling pressure vessel according to claim 6, it is characterised in that: described insulating unit (10) misplaces respectively on length and width direction and is compounded to form the heat-insulating block (9) of staggered floor construction after 90-110mm.
8. the insulation method of the vacuum insulation deep cooling pressure vessel according to any one of claim 1-4, it is characterized in that: described end socket thermal insulation is prefabricated into two semicircle adiabatic quilts by (1), it is that upper semi-circle thermal insulation is by (101), lower half circle thermal insulation quilt (102) respectively, described upper semi-circle thermal insulation is connected some first frenulums (5) by fixing on (101) straight flange end, described lower half circle thermal insulation is connected some 3rd frenulums (12) by fixing on (102) straight flange end, and described first frenulum (5) and the 3rd frenulum (12) are connected respectively.
9. the insulation method of vacuum insulation deep cooling pressure vessel according to claim 8, it is characterized in that: described upper semi-circle thermal insulation by (101), lower half circle thermal insulation by (102) after being bandaged by (2) with cylinder thermal insulation respectively, then upper semi-circle thermal insulation is mutually lapped by the first frenulum (5), the 3rd frenulum (12) by the straight flange end of (102) by (101), lower half circle thermal insulation.
10. the insulation method of the vacuum insulation deep cooling pressure vessel according to any one of claim 1-4, it is characterized in that: described cylinder thermal insulation is spliced by unit (8) by some prefabricated cylinder thermal insulation by (2), adiabatic by connection circumference undertaking band (3) fixing on unit (8) length direction at cylinder, at adiabatic the first frenulum (5) and the second frenulum (6) of being respectively fixedly connected with by the both sides on unit (8) width of cylinder, adjacent cylinder adiabatic by unit (8) by the first frenulum (5), second frenulum (6) is formed by connecting cylinder thermal insulation by (2).
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| CN107178682A (en) * | 2017-07-19 | 2017-09-19 | 赵俊芳 | Adiabatic composite construction of a kind of antiradiation and preparation method thereof |
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Application publication date: 20160713 |