CN102147041A - Special-shaped vacuum heat insulation panel and manufacturing method thereof - Google Patents

Abstract

The invention discloses a special-shaped vacuum heat insulation panel, wherein a core panel is arc-shaped, and the core panel is provided with notches with intervals. The invention also discloses a manufacturing method of the special-shaped vacuum heat insulation panel. The method comprises the following steps: firstly preparing the core panel; slotting at the inner side of the core panel; putting the core panel after slotting in a package bag, and vacuumizing after putting the core panel in a vacuum package machine; and sealing after evacuation. The special-shaped vacuum heat insulation panel provided by the invention can be adopted to be used for temperature preservation and heat insulation in devices of irregular appearances, is specially suitable for the pipelines of circular arc shapes and circular cylinders, and the application range of the vacuum het insulation panel is enlarged.

Description

A kind of special-shaped vacuum heat-insulating plate and preparation method thereof

Technical field

The present invention relates to a kind of thermoinsulation material field of engineering technology, is a kind of special-shaped vacuum heat-insulating plate and preparation method thereof specifically.

Background technique

Vacuum heat-insulating plate has good adiabatic heat insulating effect, has been applied on medical HEATING BOX, refrigerator, refrigerator and the Refrigerated container at present.With regard to its shape, all be plate.But along with in recent years, along with pay attention to day by day and the science and technology development of all trades and professions to energy-saving and emission-reduction, the also corresponding raising of all kinds of thermal insulation technologies.At present, vacuum heat-insulating plate is as a kind of novel super thermal insulating material, and the occasion of its application enlarges day by day, and the designing requirement of vacuum heat-insulating plate is developed to special-shaped direction from simple plate.Traditional planar vacuum heat-insulating plate has not satisfied the demand of the cryogenic pipe that need be incubated as the special-shaped pipeline of solar water heater, low-temperature liquefaction rock gas, petroleum gas, refrigeration boats and ships and Refrigerated container.Because of there are obvious technological disparity in special-shaped vacuum heat-insulating plate and classic flat-plate type vacuum heat-insulating plate, this just needs us that special-shaped vacuum heat-insulating plate (drum type, circular arc type) is furtherd investigate its design method and making method.

Summary of the invention

Goal of the invention: the objective of the invention is provides the special-shaped vacuum heat-insulating plate of a kind of drum type or circular arc type in order to overcome the deficiencies in the prior art, and the making method of above-mentioned special-shaped vacuum heat-insulating plate also is provided.

Technological scheme: in order to solve the problems of the technologies described above, the invention provides a kind of special-shaped vacuum heat-insulating plate, described central layer is arc or cylindrical shape, offers notch on this central layer at interval.

A kind of making method of special-shaped vacuum heat-insulating plate, the concrete steps of this method are as follows:

(1) prepares central layer;

(2) in the inboard fluting of central layer road: promptly open a conduit at the inboard every span d of central layer, conduit lowermost end and central layer outer surface distance are d1;

(3) central layer after will slotting is put into packing, puts into vacuum package machine then and vacuumizes; When vacuumizing and since the fluting position packing film be pressed in the groove, thereby vacuum heat-insulating plate can bend to circular arc automatically; Seal after vacuumizing end, finish the making of special-shaped vacuum heat-insulating plate.

When special-shaped vacuum heat-insulating plate is cylindrical shape, behind the central layer fluting, in the front-end and back-end of central layer the circular arc interface is set in the step (2): promptly reserving length in the end outside of core is 6-10mm, highly is the outer joint of d1; The other end lateral resection length at core is 6-10mm, highly is the interior joint of d1; In the step (3), vacuumize finish to seal after, adopt tackiness agent that outer wrap the outer joint of packing film and the interior joint formation cylindrical shape that is bonded together.Bond described in the present invention preferably adopts polyurethane binder.

The number k that slots on the central layer in the step of the present invention (2) determines according to following formula:

The width W of conduit is:

The angle θ of fluting is

$\mathrm{\θ}=2\arctan \frac{\mathrm{\δ}\·d}{2(\mathrm{\δ}-d1)(r+\mathrm{\δ})}$

The width of fluting is: h=δ-d ₁

Wherein the thickness of vacuum heat-insulating plate is δ, and the barrel bore that requires to make is r, and then outside diameter of cylinder should be R=r+ δ, and outer perimeter is C _Outward=2 * 3.14 * (r+ δ), interior girth is C _In=2 * 3.14 * r; Fluting is spaced apart d.

Beneficial effect: the present invention compared with prior art has the following advantages:

(1) adopts special-shaped vacuum heat-insulating plate of the present invention, can be used in insulation in the irregular equipment,, enlarged the using scope of vacuum heat-insulating plate particularly for circular arc and columnar pipeline.

(2) making method of special-shaped vacuum heat-insulating plate of the present invention is simply ingenious, is fit to industrialized production.

Description of drawings

Fig. 1 is a kind of structural representation of special-shaped vacuum heat-insulating plate of the present invention.

Fig. 2 is core fluting schematic representation among the present invention.

Fig. 3 is an A place schematic representation among Fig. 1.

Fig. 4 is a B place schematic representation among Fig. 1.

Fig. 5 is embodiment of the invention data list 1.

Fig. 6 is embodiment of the invention data list 2.

Embodiment

Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiments only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims to the modification of the various equivalent form of values of the present invention and limit.

Embodiment

A kind of drum type vacuum heat-insulating plate as shown in Figure 1 comprises central layer and packing film, and central layer is a cylindrical shape, offers notch 11 (as shown in Figure 3) on the central layer at interval.

The making method of above-mentioned drum type vacuum heat-insulating plate, concrete steps are as follows:

(1) prepares central layer;

(2) in central layer 1 inboard fluting road 2: promptly open a conduit at central layer 1 inboard every span d, conduit is a triangle, and conduit lowermost end and central layer outer surface distance are d1; Behind the central layer fluting, in the front-end and back-end of central layer the circular arc interface is set: promptly reserving length in the end outside of core is 8mm, highly is the outer joint 5 of d1; The other end lateral resection length at core is 8mm, highly is the interior joint 4 (as shown in Figure 2) of d1;

(3) central layer after will slotting is put into packing, puts into vacuum package machine then and vacuumizes; When vacuumizing and since the fluting position packing film be pressed in the groove, thereby vacuum heat-insulating plate can bend to circular arc automatically; Seal after vacuumizing end, after sealing, adopt tackiness agent that outer wrap the outer joint of packing film and interior joint and adopt polyurethane binder formation cylindrical shape that is bonded together.

The number k that slots on the central layer determines according to following formula:

The width W of conduit is:

The angle θ of fluting is

$\mathrm{\θ}=2\arctan \frac{\mathrm{\δ}\·d}{2(\mathrm{\δ}-d1)(r+\mathrm{\δ})}$

The width of fluting is: h=δ-d ₁

Wherein the vacuum insulation plate thickness is δ, and the barrel bore that requires to make is r, and then outside diameter of cylinder should be R=r+ δ, and outer perimeter is C _Outward=2 * 3.14 * (r+ δ), interior girth is C _In=2 * 3.14 * r; Fluting is spaced apart d.Concrete parameter as shown in Figure 5, wherein VIP represents vacuum heat-insulating plate.

Claims (6)

1. special-shaped vacuum heat-insulating plate, it is characterized in that: described central layer is arc or cylindrical shape, offers notch on this central layer at interval.

2. the making method of a special-shaped vacuum heat-insulating plate, it is characterized in that: the concrete steps of this method are as follows:

(1) prepares central layer;

(2) in the inboard fluting of central layer road: promptly open a conduit at the inboard every span d of central layer, conduit lowermost end and central layer outer surface distance are d1;

(3) central layer after will slotting is put into package bag, puts into vacuum package machine then and vacuumizes; When vacuumizing and since the fluting position packing film be pressed in the groove, thereby vacuum heat-insulating plate can bend to circular arc automatically; Seal after vacuumizing end, finish the making of special-shaped vacuum heat-insulating plate.

3. the making method of a kind of special-shaped vacuum heat-insulating plate according to claim 2, it is characterized in that: when special-shaped vacuum heat-insulating plate is cylindrical shape, after central layer is slotted in the step (2), in the front-end and back-end of central layer the circular arc interface is set: promptly reserving length in the end outside of core is 6-10mm, highly is the outer joint of d1; The other end lateral resection length at core is 6-10mm, highly is the interior joint of d1; In the step (3), vacuumize finish to seal after, adopt tackiness agent that outer wrap the outer joint of packing film and the interior joint formation cylindrical shape that is bonded together.

4. the making method of a kind of special-shaped vacuum heat-insulating plate according to claim 2, it is characterized in that: described conduit is a triangle

5. the making method of a kind of special-shaped vacuum heat-insulating plate according to claim 3 is characterized in that: described Bond employing polyurethane binder.

6. the making method of a kind of special-shaped vacuum heat-insulating plate according to claim 2 is characterized in that: the number k that slots on the central layer in the described step (2) determines according to following formula:

The width W of conduit is:

The angle θ of fluting is

$\mathrm{\θ}=2\arctan \frac{\mathrm{\δ}\·d}{2(\mathrm{\δ}-d1)(r+\mathrm{\δ})}$

The width of fluting is: h=δ-d ₁

Wherein the thickness of vacuum heat-insulating plate is δ, and the barrel bore that requires to make is r, and then outside diameter of cylinder should be R=r+ δ, and outer perimeter is C _Outward=2 * 3.14 * (r+ δ), interior girth is C _In=2 * 3.14 * r; Fluting is spaced apart d.

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