Stripping device for thin film type LNG (liquefied natural gas) secondary shielding layer

Abstract

The utility model discloses a stripping device for a film type LNG (Liquefied Natural Gas) secondary shielding layer, which comprises a bottom plate, a connecting frame and a flame projector which are arranged on the bottom plate, a sliding rail arranged on the connecting frame, a sliding block matched on the sliding rail, a connecting plate arranged on the sliding block, and a rotating motor and a fixed plate which are connected to the connecting plate, the connecting frame is provided with a rack, a rotating shaft of the rotating motor is provided with a gear matched with the rack, the gear is meshed with the rack, the fixing plate is provided with a stripping groove used for containing a to-be-stripped piece, the to-be-stripped piece is fixed in the stripping groove, and the side edge of the stripping groove is bent outwards to form a stripping guide part. According to the glue heating and softening device, the plywood can be prevented from shifting, heating and softening of glue at the stripping position and stripping of a glass fiber layer and an aluminum foil layer are achieved by moving the plywood, the consistency of the heating and softening effects of the glue is guaranteed, and the smoothness of stripping operation and the accuracy of stripping data are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquefied natural gas field relates to the peeling data test of thin film type LNG secondary shield layer, specifically relates to a kind of peeling device of thin film type LNG secondary shield layer. BACKGROUND

[0002] The storage cabin on LNG (liquefied natural gas) ship is a device for storing liquefied natural gas, which is formed by splicing a plurality of insulation plates, shielding plates, sealing plates and the like, wherein the shielding plates include a flexible secondary shielding layer (FSB) and a rigid secondary shielding layer (RSB), and the FSB and the RSB each include a glass fiber layer and an aluminum foil layer, which are bonded together by glue. Due to the particularity of liquefied natural gas, the storage cabin must have extremely high insulation, sealing, shielding and other properties, so it is necessary to test the connection strength of the glass fiber layer and the aluminum foil layer in the FSB or RSB. The existing method is to peel the aluminum foil layer from the glass fiber layer, and then send it to a testing machine to test the peeling force data, so as to determine whether the peeling strength is qualified.

[0003] As shown in Figure 1 and Figure 2 , the existing peeling method is to bond the glass fiber layer of the secondary shielding layer on the plywood, and then manually use a methane bottle to heat the secondary shielding layer to soften the glue between the glass fiber layer and the aluminum foil layer. Then, the aluminum foil layer and the glass fiber layer are peeled off by vertically upward traction through a plurality of guide rollers. This method has some problems in actual application, which are as follows:

[0004] 1. The manual heating method cannot ensure the uniformity of heating the secondary shielding layer. On the one hand, the peeling may be blocked due to insufficient softening of the local glue, and on the other hand, the peeling data may have large local errors and poor consistency, thereby affecting the accuracy of subsequent peeling strength testing.

[0005] 2. The position of the plywood during peeling is not stable, and the displacement of the plywood will affect the peeling data and the accuracy of subsequent peeling strength testing. SUMMARY

[0006] The present application aims to overcome the shortcomings of the prior art and provide a peeling device for thin film type LNG secondary shielding layer, which can effectively fix the plywood during peeling to prevent displacement of the plywood, and achieve heating and softening of the glue at the peeling site and peeling of the glass fiber layer and the aluminum foil layer by moving the plywood, thereby ensuring the consistency of the glue heating and softening effect, the smoothness of the peeling operation and the accuracy of the peeling data.

[0007] Technical solution: In order to achieve the above object, the utility model provides a kind of peeling device for thin film type LNG secondary shielding layer, including bottom plate, connecting frame and flame projector being set on bottom plate, sliding rail being set on connecting frame, slider being cooperated on sliding rail, connecting plate being set on slider, rotating motor and fixed plate being connected on connecting plate, connecting frame is provided with rack, the rotating shaft of rotating motor is installed with the gear matched with rack, the gear is engaged on rack, fixed plate is provided with the peeling groove for placing the peeling piece, the peeling piece is fixed in peeling groove, the side of peeling groove is outwardly bent to form peeling guide portion, and the flame projector is used to heat peeling piece to soften glue.

[0008] Further, the bottom plate is provided with two fixed rods and a clamp mounted on the two fixed rods, and the clamp fixes the connecting frame.

[0009] Further, the clamp includes a positioning portion and clamping portions located at both ends of the positioning portion, and the clamping portions are connected to the positioning portion by bolts.

[0010] Further, the peeling groove is provided with a set screw for fixing the peeling piece.

[0011] Further, the peeling guide portion has a bending angle of 90 degrees.

[0012] Beneficial effects: Compared with the prior art, the utility model can effectively fix the plywood during the peeling process, prevent the plywood from shifting, and realize the heating and softening of the glue at the peeling position and the peeling of the glass fiber layer and the aluminum foil layer by moving the plywood, ensuring the consistency of the glue heating and softening effect, ensuring the smoothness of the peeling operation and the accuracy of the peeling data, and providing a guarantee for the accuracy of subsequent peeling strength test. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic view of the adhesion of secondary shielding layer and plywood.

[0014] Figure 2 It is a structural schematic view of the existing peeling method.

[0015] Figure 3 It is a structural schematic view of the utility model.

[0016] Figure 4 It is a connection schematic view of gear and rack.

[0017] Figure 5 It is a rear view of the utility model. DETAILED DESCRIPTION

[0018] The utility model is further illustrated below in combination with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not to limit the scope of the utility model. After reading the utility model, those skilled in the art can make various equivalent modifications to the utility model, which all fall within the scope defined by the claims attached to the present application.

[0019] As Figures 3-5 The utility model provides a kind of peeling device of film type LNG secondary shielding layer, including bottom plate 1, the connecting frame 3 and flame projector 10 being set on bottom plate 1, sliding rail 4 being set on connecting frame 3, sliding block 41 being cooperated on sliding rail 4, connecting plate 42 being set on sliding block 41, rotating motor 5 and fixed plate 6 being connected on connecting plate 42, two fixed rods 11 are provided on bottom plate 1 and clamp 2 is installed on two fixed rods 11, clamp 2 includes positioning part 21 and clamping part 22 located at the both ends of positioning part 21, clamping part 22 is connected on positioning part 21 by bolt 23, connecting frame 3 is fixed on clamp 2 by two clamping parts 22, connecting frame 3 is provided with rack 31, the rotating shaft of rotating motor 5 is installed with the gear 51 matched with rack 31, gear 51 is engaged on rack 31, fixed plate 6 is provided with the peeling groove 7 for placing the piece to be peeled, the set screw 8 for fixing the piece to be peeled is provided on peeling groove 7, the piece to be peeled is fixed in peeling groove 7 by set screw 8, the side of peeling groove 7 is outwardly bent to form peeling guide part 71, the bending angle of peeling guide part 71 is 90 degrees, and flame projector 10 is used to heat the piece to be peeled to soften glue.

[0020] In the embodiment, the above peeling device is used for peeling film type LNG secondary shielding layer, which includes glass fiber layer 91 and aluminum foil layer 92, and the two are connected by glue. The aluminum foil layer 92 needs to be peeled from the glass fiber layer 91 for a certain length. First, the piece to be peeled needs to be prepared, that is, the glass fiber layer 91 is adhered to the plywood 9 by adhesive, and then the above peeling device is used to peel, and the specific operation process is as follows:

[0021] Firstly, the to-be-stripped part is placed in the stripping groove 7, the plywood 9 is fixed by the set screw 8, then the height of the connecting frame 3 is adjusted by the clamp 2 according to the height of the torch 10, so that the to-be-stripped part is in the torch area of the torch 10, then the torch 10 and the rotating motor 5 are started, the gear 51 starts to rotate under the action of the rotating motor 5, and the sliding block 41 starts to move along the sliding rail 4 due to the meshing relationship between the gear 51 and the rack 31, so that the to-be-stripped part and the stripping groove 7 also start to move, in the moving process, the torch 10 uniformly heats and softens the glue between the glass fiber layer 91 and the aluminum foil layer 92, and the aluminum foil layer 92 is stripped from the glass fiber layer 91 along the stripping guide part 71 by the traction force, when the stripping reaches the specified length, the torch 10 and the rotating motor 5 are turned off, the set screw 8 is loosened, and the to-be-stripped part is taken out.

[0022] Finally, the to-be-stripped part taken out is sent to a universal testing machine to test the stripping data, so as to realize the detection of the stripping strength.

[0023] In the above stripping process, the plywood 9 is effectively fixed in the stripping groove 7 and cannot be displaced, and the torch 10 heats the to-be-stripped part moving at a uniform speed, which ensures the consistency of the glue softening and avoids the problem of large difference in glue softening degree, thereby ensuring the smoothness of the stripping operation and the accuracy of the stripping data, and providing a guarantee for the accuracy of the subsequent stripping strength detection.

Claims

1. A peeling device for a thin film type LNG secondary shield layer, characterized by, The device comprises a base plate, a connecting frame and a flame sprayer arranged on the base plate, a sliding rail arranged on the connecting frame, a sliding block matched with the sliding rail, a connecting plate arranged on the sliding block, a rotating motor and a fixing plate connected with the connecting plate, a gear matched with the rack is arranged on the rotating shaft of the rotating motor, the gear is engaged with the rack, a peeling groove for placing a piece to be peeled is arranged on the fixing plate, the piece to be peeled is fixed in the peeling groove, the side of the peeling groove is outwardly bent to form a peeling guide part, and the flame sprayer is used for heating the piece to be peeled to soften the glue.

2. The thin film type LNG secondary barrier layer peeling apparatus of claim 1, wherein Two fixing rods are arranged on the base plate, and a clamp is arranged on the two fixing rods to fix the connecting frame.

3. The thin film type LNG secondary barrier layer peeling apparatus of claim 2, wherein the first and second peeling rollers are arranged to be spaced apart from each other by a distance of 0.1 to 0.5 mm. The clamp comprises a positioning part and clamping parts arranged at both ends of the positioning part, and the clamping parts are connected with the positioning part by bolts.

4. The thin film type LNG secondary barrier layer peeling apparatus of claim 1, wherein A fixing screw is arranged on the peeling groove to fix the piece to be peeled.

5. The thin film type LNG secondary barrier layer peeling apparatus of claim 1, wherein The bending angle of the peeling guide part is 90 degrees.

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