Residue-free adhesive plate for protecting flange and flange comprising same

Abstract

The utility model provides a residue-free adhesive plate for protecting a flange and a flange comprising the same, the residue-free adhesive plate comprises a UV wear-resistant layer, a base material layer and an adhesive layer which are sequentially stacked, the adhesive plate is fixed on a sealing surface of the flange through the adhesive layer, release paper or a release film is further arranged on the outer side of the adhesive layer, and the adhesive layer is fixed on the sealing surface of the flange through the release paper or the release film. And the protective layer is used for protecting the adhesive layer. According to the utility model, through accurate processing and forming, a perfect paint edge curve can be provided, and the problems of irregular paint edge, paint pollution to a sealing surface and the like caused by manual cutting and manual manufacturing are solved. No-residue glue with moderate viscosity is adopted, the trouble of cleaning the glue when protection is removed after paint spraying is avoided, the situation that the flange sealing face is polluted by paint due to the fact that the glue is not firm is avoided, and a proper plate is adopted so that the flange sealing face can not be damaged in the sand blasting process.

Description

Technical Field

[0001] The utility model relates to the field of flange protection, anti-corrosion and paint shielding, in particular to a non-residue adhesive plate for protecting flanges and a flange comprising the same. Background Art

[0002] In the prior art, flanges, also called flange flanges or flanges, are mainly used as components for connecting pipes, equipment, valves, containers, etc.

[0003] The process of flange connection is: fix two sections of pipes, pipe fittings or pipeline accessories on a flange respectively, and place the gasket between the sealing surfaces of the two flanges. There are bolt holes on the flange (the diameter and number of bolts are different for different pressures and different diameters). Insert the bolts into the bolt holes of the flanges, tighten the nuts, and the gasket deforms after the specific pressure on the surface reaches a certain value, and fills the microscopic unevenness on the sealing surface, so that the two flanges are tightly connected without leakage. Some equipment or pipeline accessories have their own flanges, which are called integral flanges, and they also need to be connected to the piping by flanges.

[0004] There are four basic types of flange sealing surfaces: flat sealing surface flange (including flat surface, code FF and raised surface, code RF), concave and convex sealing surface flange (code FM), tongue and groove sealing surface flange (code TG), and ring joint surface flange (code RTJ or RJ).

[0005] Since the flange sealing surface has strict processing requirements, the flange sealing surface needs to be masked when the flange is painted to avoid contaminating the flange sealing surface and causing sealing failure.

[0006] The flange painting masking methods currently used mostly use manual cutting of materials, such as rubber sheets, and glue to the flanges to prevent the flange sealing surface from being contaminated during painting. The existing flange paint masking is mainly divided into two situations: those that require painting and those that do not require painting.

[0007] The main disadvantages of this method are imprecise cutting, resulting in uneven painted edges, and the labor-intensive cleaning of residual glue after painting.

[0008] In order to protect the flange sealing surface from being scratched and to prevent foreign matter from entering the pipeline / equipment / valve / container through the flange, the flange needs to be protected. Since the flange sealing surface has strict processing requirements, measures need to be taken to prevent the flange sealing surface from corroding and rusting, which affects the sealing effect.

[0009] However, the flange protection methods currently used mainly include plastic protective covers, processed metal plate protection, and various other wrapping protection materials such as three-proof cloth, rubber, etc., in order to prevent the flange sealing surface from corrosion and damage, and prevent foreign matter from entering the flange.

[0010] The main disadvantages of these methods are that they are easy to damage and fall off, cannot effectively prevent corrosion caused by moisture contact, and are unsightly and reduce the corporate image.

[0011] In view of this, the inventor of the present application has designed a non-residue adhesive plate for protecting flanges and a flange including the same, in order to overcome the above technical problems. Utility Model Content

[0012] The technical problem to be solved by the utility model is to overcome the defects of the prior art that the flange protection is easy to be damaged and fall off, and cannot effectively prevent flange corrosion caused by moisture contact, and to provide a residual-free adhesive plate for protecting the flange and a flange including the same.

[0013] The utility model solves the above technical problems through the following technical solutions:

[0014] A non-residue adhesive plate for protecting flanges, characterized in that the non-residue adhesive plate comprises a UV wear-resistant layer, a substrate layer and an adhesive layer which are stacked in sequence, the non-residue adhesive plate is fixed to the sealing surface of the flange through the adhesive layer, and a release paper or a release film is also arranged on the outer side of the adhesive layer to protect the adhesive layer.

[0015] According to an embodiment of the utility model, the substrate layer is a rubber plate, a rubber foam plate, a plastic plate, a PTFE plate, an aramid fiber plate, a polyvinyl chloride plate, a PTE plate or a polyurethane plate.

[0016] According to an embodiment of the utility model, the adhesive plate is a hollow annular adhesive plate or a solid circular adhesive plate.

[0017] According to an embodiment of the utility model, the sealing surface of the flange has a raised convex surface, and the adhesive plate is a hollow annular adhesive plate.

[0018] According to an embodiment of the utility model, an annular groove or a concave hole is opened on the convex surface to form a concave-convex flange.

[0019] According to an embodiment of the utility model, the sealing surface of the flange is a plane, and the adhesive plate is a solid circular adhesive plate.

[0020] According to an embodiment of the utility model, the adhesive plate is provided with a plurality of through holes.

[0021] According to an embodiment of the utility model, the through hole is a bolt hole.

[0022] According to one embodiment of the present invention, the flange is an RF flange, an RTJ flange, a TG flange or an MF flange.

[0023] The utility model also provides a flange, which is characterized in that the flange comprises the adhesive plate without residual adhesive as described above.

[0024] The positive and progressive effects of the utility model are:

[0025] The non-residue adhesive plate and the flange assembly of the utility model can provide a perfect paint edge curve through precise processing and molding, and solve the problems of uneven paint edges and paint contamination of sealing surfaces caused by manual cutting and manual production.

[0026] Use glue with no residue and moderate viscosity to solve the trouble of cleaning glue when removing protection after painting, as well as the problem of flange sealing surface being contaminated by paint due to weak glue, and use suitable plates to prevent them from being damaged during sandblasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0028] Figure 1 The utility model is a schematic structural diagram of a non-residue adhesive plate for protecting flanges.

[0029] Figure 2 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the flat flange for protecting the flange. Figure 1 .

[0030] Figure 3 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the flat flange for protecting the flange. Figure 2 .

[0031] Figure 4 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the convex flange for protecting the flange. Figure 1 .

[0032] Figure 5 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the convex flange for protecting the flange. Figure 2 .

[0033] Figure 6 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the concave and convex flange for protecting the flange. Figure 1 .

[0034] Figure 7 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the concave and convex flange for protecting the flange. Figure 2 .

[0035] Figure 8The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the tenon flange for protecting the flange. Figure 1 .

[0036] Fig. 9 The utility model is a schematic diagram of the combination of the non-residue adhesive plate and the tenon flange for protecting the flange. Figure 2 .

[0037] Fig.10 Schematic diagram of the combination of the non-residue adhesive plate and the RTJ flange used for protecting the flange of the utility model Figure 1 .

[0038] Fig.11 Schematic diagram of the combination of the non-residue adhesive plate and the RTJ flange used for protecting the flange of the utility model Figure 2 .

[0039] Fig.12 The utility model is a structural schematic diagram of a circular adhesive plate which is used for protecting flanges without residual adhesive.

[0040] Fig.13 The utility model is a structural schematic diagram of a circular adhesive plate with bolt holes, which is used for protecting flanges without residual adhesive.

[0041] Fig.14 The utility model is a structural schematic diagram of a circular ring-shaped adhesive plate used for protecting a flange without residual adhesive.

[0042] Fig.15 The utility model is a structural schematic diagram of a non-residue adhesive plate for protecting a flange, which is a circular annular adhesive plate with bolt holes.

[0043] [Reference Signs]

[0044] No Residue Adhesive Plate 10

[0045] UV wear-resistant layer 11

[0046] Base material layer 12

[0047] Adhesive layer 13

[0048] Release paper or release film14

[0049] Flange 20

[0050] Through hole 15

[0051] Convex 21

[0052] Annular groove or recessed hole 22 DETAILED DESCRIPTION

[0053] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0054] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the accompanying drawings.Where possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0055] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0056] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings contained in each term.

[0057] like Figure 1 As shown, the utility model discloses a non-residue adhesive plate 10 for protecting a flange, which comprises a UV wear-resistant layer 11, a substrate layer 12 and an adhesive layer 13 which are stacked in sequence, and the non-residue adhesive plate is fixed on the sealing surface of a flange 20 through the adhesive layer 13. A release paper or a release film 14 is also arranged on the outside of the adhesive layer 13 to protect the adhesive layer 13.

[0058] Here, the adhesive layer 13 adopts glue with no residue, moderate viscosity, low sulfur and low chlorine content.

[0059] The utility model is a non-residue adhesive plate for protecting flanges. It uses a plate with sufficient toughness and strength (such as a rubber plate, a rubber foam plate, a plastic plate, a PTFE plate, an aramid fiber plate, a PVC (polyvinyl chloride) plate, a PTE plate, a polyurethane plate, etc.) as a base material to maintain the shape for easy pasting, and can withstand the impact of sandblasting and the impact caused by daily construction. In addition, an anti-ultraviolet layer can be used to cope with outdoor environments, and the use of a glue with no residue, moderate viscosity, low sulfur, and low chlorine content allows it to be used for flanges of various metal materials.

[0060] The flange assembly of the utility model adopts a sticky plate solution, which can also isolate water vapor to prevent the flange sealing surface from corrosion and rust, and adds an antiseptic to the glue to help prevent the flange sealing surface from corrosion and rust.

[0061] Further preferably, the adhesive plate 10 is preferably a hollow annular adhesive plate (the diameter of the hollow annular ring is d, and the diameter of the adhesive plate is D) or a solid circular adhesive plate (the diameter is D). In addition, it is divided into two types according to different flange sealing surface forms: with bolt holes and without bolt holes.

[0062] like Figure 2 and Figure 3 As shown, the sealing surface of the flange 20 is a plane, and the mutually matching adhesive plates 10 are circular adhesive plates with bolt holes. Figure 2 The mid-plane flange uses a circular adhesive plate with bolt holes, which is suitable for flange internal protection, sealing surface protection, and paint masking. Figure 3 The circular adhesive plate with bolt holes is used for the mid-plane flange, which is suitable for sealing surface protection and paint masking. In addition, the circular adhesive plate can be used for the protection and paint masking of RF flange, RTJ flange (ring joint flange), TG flange, and MF flange.

[0063] like Figure 4 The sealing surface of the flange 20 has a raised convex surface 21, and the mutually matching adhesive plate 10 is a solid circular adhesive plate, which is suitable for flange internal protection, sealing surface protection, and paint masking.

[0064] like Figure 5 As shown, the sealing surface of the flange 20 has a raised convex surface 21, and the mutually matching adhesive plate 10 is a circular adhesive plate, which is suitable for sealing surface protection and paint masking.

[0065] like Figure 6 As shown, the convex surface 21 is provided with an annular groove or concave hole 22 to form a concave-convex flange. The sealing surface of the flange 20 has a concave-convex surface, and a circular adhesive plate is used, which is suitable for sealing surface protection and paint masking.

[0066] like Figure 7 As shown, the sealing surface of the flange 20 has a concave and convex surface, and a solid circular adhesive plate is used, which is suitable for sealing surface protection, sealing surface protection and paint masking.

[0067] like Figure 8 As shown, the flange 20 is a tongue-and-groove flange, and a solid circular adhesive plate is used, which is suitable for flange internal protection, sealing surface protection, and paint masking.

[0068] like Fig. 9 As shown, the flange 20 is a tongue-and-groove flange, and uses a circular adhesive plate, which is suitable for sealing surface protection and paint masking.

[0069] like Fig.10 As shown, the flange 20 is an RTJ (ring joint flange) using a circular adhesive plate, which is suitable for flange internal protection, sealing surface protection, and paint masking.

[0070] like Fig.11 As shown, the flange 20 is an RTJ (ring joint flange) using a circular adhesive plate, which is suitable for sealing surfaces and paint masking.

[0071] like Figures 12 to 15As shown, the adhesive plate 10 without residual adhesive may preferably be provided with a plurality of through holes 15. For example, the through holes 15 may preferably be bolt holes. The diameter of the through hole 15 arrangement position is D1, and the diameter of the adhesive plate is D. Then N through holes 15 are arranged evenly, and the diameter of each through hole 15 is D2. The circular adhesive plate with bolt holes can be used for the protection of the plane flange and the masking of paint. The circular ring-shaped adhesive plate with bolt holes can be used for the protection of the sealing surface of the plane flange with internal painting requirements and the masking of paint.

[0072] According to the above structural description, the utility model also provides a flange 20, and the flange 20 includes the non-residue adhesive plate 10 as described above. Specifically, the method of using the non-residue adhesive plate 10 for protecting the flange is as follows: first, clean the surface of the flange 20 to remove dust, oil, water vapor, etc. Then, prepare a non-residue adhesive plate 10 of corresponding specifications, tear off the release paper or release film 14, align the processed non-residue adhesive plate 10 with the corresponding bolt hole / protrusion / convex surface / groove of the flange, and paste it, and then press it.

[0073] According to the above structural description, the non-residue adhesive plate for protecting flanges of the utility model has the following characteristics:

[0074] 1. Regarding paint masking

[0075] The flange assembly can provide a perfect paint edge curve through precise processing and can solve the problems of uneven paint edges and paint contamination of sealing surfaces caused by manual cutting and manual production.

[0076] At the same time, the use of glue with no residue and moderate viscosity solves the trouble of cleaning glue when removing the protection after painting, and the problem of flange sealing surface being contaminated by paint due to weak adhesive. In addition, suitable plates are used to prevent them from being damaged during the sandblasting process.

[0077] For situations where paint is required inside the pipe, a hollow annular adhesive plate is used to allow the paint spraying equipment to enter the pipe for spraying (such as Fig.14 and Fig.15 At this time, when the painting is completed, the ring adhesive plate should be removed and the round adhesive plate should be used to stick to achieve the protection and corrosion resistance of the flange.

[0078] For situations where the interior of the pipe does not require painting, a solid round design (such as Fig.12 and Fig.13 When the painting is finished, there is no need to remove the round adhesive plate, it can be used directly for pipe protection and corrosion prevention.

[0079] 2. Flange protection and anti-corrosion

[0080] The flange assembly solves the problem of easy falling off of the protection by using glue with moderate viscosity, and prevents moisture from contacting the flange.

[0081] At the same time, the use of plates with sufficient toughness and strength can effectively prevent damage and destruction caused by daily construction. Through precise processing and molding, it can completely cover and protect the flange sealing surface and enhance the corporate image.

[0082] In summary, the utility model is used for the adhesive plate without residual glue to protect the flange, which improves the current work process of flange sealing surface paint masking, which uses manual cutting of materials, brushing of glue, cleaning of glue after painting, and wrapping of three-proof cloth, into a precisely processed, easy-to-construct, and residue-free adhesive plate product, which can save a lot of manpower, material and time costs.

[0083] The flange assembly can provide a perfect paint edge curve through precise processing and can solve the problems of uneven paint edges and paint contamination of sealing surfaces caused by manual cutting and manual production.

[0084] Use glue with no residue and moderate viscosity to solve the trouble of cleaning glue when removing protection after painting, as well as the problem of flange sealing surface being contaminated by paint due to weak glue, and use suitable plates to prevent them from being damaged during sandblasting.

[0085] For those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary implementation of the present application.

[0086] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0087] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus facilitate the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this application, multiple features are sometimes grouped into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those mentioned in the claims. In fact, the features of an embodiment are less than all the features of a single embodiment disclosed above.

[0088] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A non-residue adhesive plate for protecting flanges, characterized in that: The non-residue adhesive plate comprises a UV wear-resistant layer, a substrate layer and an adhesive layer which are stacked in sequence. The non-residue adhesive plate is fixed on the sealing surface of the flange through the adhesive layer. A release paper or a release film is also arranged on the outer side of the adhesive layer to protect the adhesive layer.

2. The non-residue adhesive plate for protecting flanges according to claim 1, characterized in that: The substrate layer is a rubber plate, a rubber foam plate, a plastic plate, a PTFE plate, an aramid fiber plate, a polyvinyl chloride plate, a PTE plate or a polyurethane plate.

3. The non-residue adhesive plate for protecting flanges according to claim 1, characterized in that: The adhesive plate is a hollow annular adhesive plate or a solid circular adhesive plate.

4. The non-residue adhesive plate for protecting flanges according to claim 3, characterized in that: The sealing surface of the flange has a raised convex surface, and the adhesive plate is a hollow annular adhesive plate.

5. The non-residue adhesive plate for protecting flanges according to claim 4, characterized in that: The convex surface is provided with an annular groove or a concave hole to form a concave-convex flange.

6. The non-residue adhesive plate for protecting flanges according to claim 3, characterized in that: The sealing surface of the flange is a plane, and the adhesive plate is a solid circular adhesive plate.

7. The non-residue adhesive plate for protecting flanges according to claim 3, characterized in that: The adhesive plate is provided with a plurality of through holes.

8. The non-residue adhesive plate for protecting flanges according to claim 7, characterized in that: The through hole is a bolt hole.

9. The non-residue adhesive plate for protecting flanges according to claim 1, characterized in that: The flange is an RF flange, an RTJ flange, a TG flange or an MF flange.

10. A flange, characterized in that: The flange comprises a residue-free adhesive sheet as claimed in any one of claims 1-9.

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