JP2005133838A - Heat insulation cover member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulation cover member, in which mounting work to first-layer cover members and second-layer cover members can be easily performed in short time, and in which breakage of the cover members due to cooling shrinkage can be securely avoided. <P>SOLUTION: A plurality of first-layer cover members 1 for heat insulation are disposed along an outer surface of a subject to be kept cold. The first-layer cover members 1 adjoining each other are connected to each other by connection parts 12. A plurality of second-layer cover members 2 for heat insulation are disposed along the outer surfaces of the first-layer cover members 1. The second-layer cover members 2 adjoining each other are connected to each other by the connection parts 12. The first-layer cover members 1 and the second-layer cover members 2 are thus installed on the outer surface of the subject in this cover member for heat insulation. The outer surfaces of the first-layer cover members 1 and the inner surfaces of the second-layer cover members 2 are preliminarily connected to each other by releasable means 11 that can be released from each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  According to the present invention, a plurality of first-layer cover members for heat insulation are arranged along the outer surface of a cold insulation object, adjacent first-layer cover members are connected to each other at a connection portion, and further, the first-layer cover A plurality of heat-insulating second-layer cover members are disposed along the outer surface of the cover member, and adjacent second-layer cover members are connected to each other at a connection portion, whereby the first-layer cover member and the second-layer cover member are connected. The present invention relates to a heat insulating cover member for attaching a cover member to the outer surface of the cold object.

As this type of heat insulating cover member, for example, when the object to be kept cold is a pipe for flowing low temperature fluid, the semi-cylindrical first layer cover member disposed along the outer surface of the pipe, and the first layer A semi-cylindrical second layer cover member disposed along the outer surface of the eye cover member has been used. Conventionally, the first layer cover member and the second layer cover member are separate from each other and not connected. Was configured.
Conventionally, the first layer cover member is disposed on the outer surface of the pipe, the adjacent first layer cover members are connected to each other and attached to the pipe, and then two layers are formed on the outer surface of the first layer cover member. The eye cover member was disposed, and the adjacent second layer cover members were connected to each other and attached to the outside of the first layer cover member. There are no patent gazettes mentioning the construction method).

  Therefore, in the conventional heat insulation cover member, it is necessary to separately attach the first layer cover member and the second layer cover member, and the work of attaching the heat insulation cover member to the cold insulation object becomes complicated. The time required for the operation also becomes longer, which causes the construction cost to increase.

In order to eliminate such drawbacks, for example, it is conceivable that the outer surface of the first layer cover member and the inner surface of the second layer cover member are bonded in advance, and the two cover members are integrated.
However, when the first layer cover member and the second layer cover member are integrated by bonding and attached to the cold object, the first layer cover member side is cooled by contact with the outer surface of the cold object and contracts significantly. On the other hand, the second layer cover member side does not shrink as much as the first layer cover member side, and the first and second layer cover members are damaged due to the difference in the amount of shrinkage. It will cause trouble.

  The present invention pays attention to such conventional drawbacks, and its purpose is that the first layer cover member and the second layer cover member can be attached easily and in a short period of time, and cooling shrinkage can be achieved. An object of the present invention is to provide a heat insulating cover member that can surely avoid breakage of the cover member.

  In the first characteristic configuration of the present invention, a plurality of first-layer cover members for heat insulation are arranged along the outer surface of a cold object, and adjacent first-layer cover members are connected to each other at a connection portion, Furthermore, a plurality of second-layer cover members for heat insulation are disposed along the outer surface of the first-layer cover member, and adjacent second-layer cover members are connected to each other at a connection portion, and the first-layer cover member is connected. A heat insulating cover member for attaching the cover member and the second layer cover member to the outer surface of the cold object, wherein the outer surface of the first layer cover member and the inner surface of the second layer cover member are separated from each other It exists in the place connected beforehand by the free peeling means.

According to the first characteristic configuration of the present invention, the outer surface of the first layer cover member to be attached along the outer surface of the cold insulation object, and the second layer cover member to be attached along the outer surface of the first layer cover member Since the inner surface is connected in advance by the peeling means, the first layer and the second layer cover members can be handled in an integrated state at the time of attaching to the cold insulation object. The operation of attaching both cover members to the cold insulation object is simplified, and the construction time can be shortened and the construction cost can be reduced.
And since the connection of the cover member of the 1st layer and the 2nd layer is based on the peeling means which can be mutually peeled off, after attaching to the cold insulation object, the 1st layer by contact with the cold insulation object outer surface When the cover member side shrinks due to cooling, the two cover members are disconnected by peeling from the peeling means, and therefore damage to the cover member due to the difference in shrinkage between the first layer side and the second layer side is avoided, and the Insulating action can be maintained over.

  According to a second characteristic configuration of the present invention, the peeling means is constituted by an adhesive adhesive layer that peelably and partially bonds the outer surface of the first layer cover member and the inner surface of the second layer cover member. There is.

  According to the second characteristic configuration of the present invention, the peeling means is constituted by an adhesive adhesive layer that peelably and partially bonds the outer surface of the first layer cover member and the inner surface of the second layer cover member. Therefore, the desired action can be expected by the adhesive adhesive layer. In particular, since both cover members are partially adhered by the adhesive adhesive layer, both cover members are more reliably peeled off upon cooling. It will be a thing.

  According to a third characteristic configuration of the present invention, the peeling means includes a film that is detachably attached to at least one of the outer surface of the first layer cover member and the inner surface of the second layer cover member. The film is composed of an adhesive layer that adheres the film to the other surface.

  According to the third characteristic configuration of the present invention, the peeling means is detachably attached to at least one of the outer surface of the first layer cover member and the inner surface of the second layer cover member. In this case, the desired action can be expected from the releasable film.

  According to a fourth characteristic configuration of the present invention, the peeling means is detachably attached to the outer surface film that is detachably attached to the outer surface of the first layer cover member and the inner surface of the second layer. And an adhesive layer that partially adheres the inner and outer surface films.

  According to the fourth characteristic configuration of the present invention, the peeling means is detachably attached to the outer surface film that is detachably attached to the outer surface of the first layer cover member and the inner surface of the second layer. Since it is composed of an inner surface film and an adhesive layer that partially adheres the inner and outer surface films, in this case, both the peelable film and the adhesive layer that partially adheres both films as desired. Can be expected.

  According to a fifth characteristic configuration of the present invention, the first layer cover member and the second layer cover member are formed of hard urethane, and the outer surface film is attached to the outer surface of the first layer cover member made of the hard urethane. It is a protective film for a moisture-proof sheet, and the inner surface film is a release film used in the production of the second layer cover member made of the hard urethane.

According to the fifth characteristic configuration of the present invention, since the first layer cover member and the second layer cover member are formed of hard urethane, a good heat insulating action can be expected from the hard urethane excellent in heat insulating performance. it can.
And the outer surface film is a protective film for the moisture-proof sheet adhered to the outer surface of the first layer cover member made of the hard urethane, and the inner surface film is the second layer cover made of the hard urethane. Because it is a release film used at the time of manufacture of parts, it can be diverted as it is for the protection of moisture-proof sheets and of course as a release means at the time of manufacture, and can be diverted as it is. Convenient and convenient.

  The 6th characteristic structure of this invention exists in the place by which the said contact bonding layer is comprised by the adhesive adhesive layer which adhere | attaches the said inner and outer surface film so that peeling is possible.

  According to the sixth characteristic configuration of the present invention, since the adhesive layer that adheres the inner and outer surface films is also an adhesive adhesive layer that can be peeled off, the peeling of the both cover members accompanying cooling is further ensured.

An embodiment of a heat insulating cover member according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the heat insulating cover member includes a heat insulating first layer cover member 1 and a second layer cover member 2. As shown in FIG. 2, the first layer cover member 1 includes, for example, The cross-sectional shape is formed in a substantially half-ring-shaped semi-cylindrical body so as to match the outer surface S of the pipe P for low-temperature fluid flow as a cold insulation object.
Each first layer cover member 1 is constituted by, for example, a total of four main body members 3 and an auxiliary member 4 for heat insulation disposed between the main body members 3, and the outer surface of each main body member 3 is made of aluminum. A moisture-proof sheet 5 is attached, and a protective film 6 made of synthetic resin made of polyethylene or polypropylene for protecting the moisture-proof sheet 5 is detachably attached to the outer surface of the moisture-proof sheet 5. On the inner surface of the member 3, a release film 7 made of a synthetic resin made of polyethylene or polypropylene used at the time of manufacturing the main body member 3 is detachably attached.

Each main body member 3 is made of hard urethane foam, the auxiliary member 4 is made of glass wool, and the auxiliary member 4 made of glass wool is a longitudinal direction auxiliary member 4a disposed substantially along the longitudinal direction A of the pipe P; The circumferential direction auxiliary member 4b is arranged substantially along the circumferential direction B of the pipe P, and both auxiliary members 4a and 4b are arranged in a cross shape with respect to the first layer cover member 1. Yes.
And in each 1st layer cover member 1, the longitudinal direction auxiliary member 4a is provided over the full length La along the longitudinal direction A of the pipe P, and the full width t of the thickness direction, and the circumferential direction auxiliary member 4b is a pipe. A joint tape 8 is applied to the outer surface of the first cover member 1 that is provided over the entire length Lb along the circumferential direction B of P and over the entire width t in the thickness direction, and that corresponds to both the auxiliary members 4a and 4b. It is worn.

The second-layer cover member 2 is also formed of a hard urethane foam, and its cross-sectional shape is substantially a half ring shape so as to match the outer surface of the first-layer cover member 1 as shown in FIG. It is comprised by the main body member 9 which consists of a semi-cylindrical body.
Similar to the first layer cover member 1, an aluminum moistureproof sheet 5 is attached to the outer surface of the pair of second layer cover members 2, and the moistureproof sheet 5 is made of synthetic resin. A protective film 6 is detachably attached, and a release film 7 made of a synthetic resin used in manufacturing the second-layer cover member 2 is detachably attached to the inner surface thereof. .
As shown in FIGS. 4 and 5, the protective film 6 located on the outer surface of the first layer cover member 1 and the release film 7 located on the inner surface of the second layer cover member 2 are peeled off. It is connected in advance by an adhesive double-sided tape 10 as a flexible adhesive adhesive layer, and both films 6 and 7 and the adhesive double-sided tape 10 are configured to function as a peeling means 11 described in detail later.

The cover members 1 and 2 of the first layer and the second layer are formed of, for example, a hard urethane foam, and a moisture-proof sheet 5 is attached to the outer surfaces of the cover members 1 and 2. A peelable protective film 6 is attached to the outer surface of the cover member 1, and a peelable release film 7 used at the time of manufacture is stuck to the inner surfaces of the cover members 1 and 2. It has become.
The first layer cover member 1 is divided into four main body members 3 by cutting the half-layered cylindrical first layer cover member 1 along the longitudinal direction A and the circumferential direction B of the pipe P. Each main body member 3 is connected by joint tape 8 adhered to the outer surface in a state having a predetermined joint width d between the divided surfaces, and further, auxiliary members 4a and 4b are provided between the divided surfaces from the inside. The auxiliary members 4a and 4b and the main body member 3 are inserted and manufactured by being inserted into each other.
And in the state which this 1st layer cover member 1 and 2nd layer cover member 2 shifted | deviated to the circumferential direction B of the pipe P, the protective films 6 and 2 stuck on the outer surface of the 1st layer cover member 1 are attached. A release film 7 adhered to the inner surface of the layer cover member 2 is connected in advance by an adhesive double-sided tape 10 to constitute a heat insulating cover member.

Next, a construction procedure for keeping cold the pipe P for flowing a low-temperature fluid using the heat insulating cover member having the first layer and the second layer cover members 1 and 2 will be described.
First, in the first and second cover members 1, 2 integrated by the adhesive double-sided tape 10, the release film 7 on the inner surface of the first layer is peeled off as shown in FIG. A pair of heat insulating cover members are arranged in the circumferential direction B along the outer surface S of the pipe P so that the surface is in contact with the outer surface S of the pipe P, and the two cover members 1 and 2 are connected to each other. 12 for connection. For the connecting portion 12, a urethane-based adhesive, a hard urethane foam stock solution, or the like is used.
Thereafter, another pair of heat insulating cover members are attached so that the connecting portion 12 is displaced in the circumferential direction B of the pipe P in a state adjacent to the pair of heat insulating cover members, and the pipe P is moved in the longitudinal direction A. The two adjacent cover members 1 and 2 are connected to each other by the connecting portion 12.
A number of heat insulating cover members having the first and second layer cover members 1 and 2 are arranged and attached along the outer surface S of the pipe P while sequentially repeating such operations.

Then, the protective film 6 on the outer surface of the second-layer cover member 2 is peeled off, and if necessary, from the top of the moisture-proof sheet 5, as shown in FIG. The binding material 13 made of a wire material or glass filament tape is wound and attached to the pipe P.
When the low-temperature fluid flows through the pipe P and the first-layer cover member 1 is cooled and contracted relative to the second-layer cover member 2, both the films 6 and 7 constituting the peeling means 11 and the adhesiveness Peeling occurs in at least one of the double-sided tapes 10. That is, the protective film 6 of the first layer cover member 1 is peeled off from the moisture-proof sheet 5, the release film 7 of the second layer cover member 2 is peeled off from the inner surface, or the adhesive double-sided tape 10 is used. Either one of the films 6 and 7 is peeled off, or a plurality of peelings occur simultaneously, and the connection between the first layer cover member 1 and the second layer cover member 2 is released.

Therefore, when the pipe 1 is attached to the pipe P, the first layer cover member 1 and the second layer cover members 1 and 2 can be handled in an integrated manner. Even if it is contracted, damage to both cover members 1 and 2 is reliably avoided.
And since the auxiliary member 4 for heat insulation is provided in the first layer cover member 1 in which the cooling shrinkage is remarkably generated, the auxiliary member 4 extends to relieve the stress acting on the connecting portion 12. Yes, the auxiliary member 4, that is, the longitudinal direction auxiliary member 4a and the circumferential direction auxiliary member 4b are not attached at the construction site, but are attached in advance at the factory, and are all attached in an optimal compression filling state. Therefore, the stress acting on the connection part 12 is appropriately relieved.

  Next, another embodiment will be described. However, in order to avoid redundant description, the same reference numerals are given to the constituent members described in the previous embodiment and the constituent members having the same action, and the description thereof is omitted. A configuration different from the embodiment will be described.

(1) In the previous embodiment, the protective film 6 located on the outer surface of the first layer cover member 1, the release film 7 located on the inner surface of the second layer cover member 2, and both films 6, Although the example which comprised the peeling means 11 with the adhesive double-sided tape 10 which adhere | attaches 7 removably was shown, as a peeling means 11, various structures are employable.
For example, only one of the outer surface film 6 on the first layer cover member 1 side and the inner surface film 7 on the second layer cover member 2 side is left, and the film and the cover member are bonded with the adhesive double-sided tape 10. The peeling means 11 can be constituted by one film and the adhesive double-sided tape 10.

Further, in another embodiment shown in FIG. 7, there is no film as in the previous embodiment on either the outer surface of the first layer cover member 1 or the inner surface of the second layer cover member 2. The outer surface of the cover member 1 and the inner surface of the second-layer cover member 2 are partially connected by a peelable adhesive agent, and the adhesive agent constitutes the adhesive adhesive layer 10. .
Thus, the outer surface film 6 of the first layer cover member 1 and the inner surface film 7 of the second layer cover member 2 are not necessarily required, and can be carried out without one or both, Also, the adhesive adhesive layer 10 is not particularly limited to the adhesive double-sided tape, and can be implemented using various adhesive substances including an adhesive adhesive.

(2) In the previous embodiment, the pipe P is shown as an example of the cold object. However, in addition to the pipe P, the pipe P may be applied to cold storage such as a tank or a freezer for storing a low-temperature fluid or a solid. Can do. Therefore, the shape of the cover members 1 and 2 of the first layer and the second layer is not limited to the semi-cylindrical shape as in the previous embodiments, and is formed in various shapes according to the shape of the object to be kept cold. be able to.
Moreover, although the cover member 1 and 2 of the 1st layer and the 2nd layer were formed with hard urethane, and the auxiliary member 4 of the 1st layer cover member 1 was formed with glass wool, these cover members 1 and 2 The auxiliary member 4 can be formed of a material other than hard urethane or glass wool, for example, various fibrous heat insulating materials.

The perspective view which shows the attachment state to the pipe of the cover member for heat insulation Perspective view of first layer cover member Perspective view of second layer cover member The perspective view which shows the manufacturing process of the cover member for heat insulation Longitudinal sectional view of cover member for heat insulation The perspective view which shows the attachment process to the pipe of the cover member for heat insulation Longitudinal sectional view showing another embodiment of the insulating cover member

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st layer cover member 2 2nd layer cover member 5 Moisture-proof sheet 6 Protective film as an outer surface film 7 Release film as an inner surface film 10 Adhesive adhesive layer 11 Peeling means 12 Connection part P Cold storage object S Outer surface of cold object

Claims (6)

A plurality of first-layer cover members for heat insulation are arranged along the outer surface of the object to be kept cold, adjacent first-layer cover members are connected to each other at a connecting portion, and further, outside the first-layer cover member A plurality of second-layer cover members for heat insulation are arranged along the surface, adjacent second-layer cover members are connected to each other at a connection portion, and the first-layer cover member and the second-layer cover member are connected to each other. A cover member for heat insulation to be attached to the outer surface of the cold insulation object,
A heat insulating cover member in which an outer surface of the first layer cover member and an inner surface of the second layer cover member are connected in advance by a detachable peeling means.   2. The heat insulating device according to claim 1, wherein the peeling means includes an adhesive adhesive layer that allows the outer surface of the first layer cover member and the inner surface of the second layer cover member to be peeled and partially bonded to each other. Cover member.   The peeling means adheres the film to the other surface, and a film that is detachably attached to at least one of the outer surface of the first layer cover member and the inner surface of the second layer cover member. The cover member for heat insulation of Claim 1 comprised by the contact bonding layer.   The peeling means includes an outer surface film that is detachably attached to the outer surface of the first layer cover member, an inner surface film that is detachably attached to the inner surface of the second layer, and inner and outer surfaces thereof. The cover member for heat insulation of Claim 3 comprised by the contact bonding layer which adhere | attaches a surface film partially.   The first layer cover member and the second layer cover member are made of hard urethane, and the outer surface film is a protective film for a moisture-proof sheet adhered to the outer surface of the first layer cover member made of the hard urethane. The heat insulating cover member according to claim 4, wherein the inner surface film is a release film used at the time of manufacturing the second layer cover member made of the hard urethane. The heat insulating cover member according to claim 4 or 5, wherein the adhesive layer is composed of an adhesive adhesive layer that releasably adheres the inner and outer surface films.

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