A pipe cold insulation device

Abstract

The application relates to a pipeline cold insulation device, which comprises a shell (1) and a cold insulation layer; the shell (1) is an open-close hollow structure, and the inner surface is nested with the cold insulation layer; the outer surface of the cold insulation layer is matched with the inner surface of the shell (1), and the inner surface of the shell (1) is connected with the outer surface of the cold insulation layer; the inner surface of the cold insulation layer is matched with the outer surface of a cold insulation pipeline (5); when the shell (1) is closed, the inner surface of the cold insulation layer is connected with the outer surface of the cold insulation pipeline (5), and the cold insulation pipeline (5) is sealingly connected in the shell (1). The pipeline cold insulation device can realize rapid disassembly while guaranteeing the heat insulation performance of the pipeline, and greatly improves the inspection efficiency and result reliability of the cold insulation layer pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline anticorrosion and cold insulation, in particular to a pipeline cold insulation device. BACKGROUND

[0002] In production and life, cold insulation is widely used. Many equipment pipelines are covered with cold insulation layers on the surface to inhibit the exchange of heat between the equipment pipelines and the outside world, thereby improving the utilization efficiency of energy or achieving the function of preventing scalding and frostbite. Cold insulation has various forms and structures, among which the widely used forms are that a soft cold insulation layer is directly bonded on the surface of the pipeline with the aid of glue, and that a cold insulation layer is covered on the surface of the pipeline and fixed by a hard shell.

[0003] Regardless of the form and structure of the cold insulation, the basic principle is to isolate the pipeline equipment from the outside world through the cold insulation layer, so that two different corrosion environments are formed inside and outside the cold insulation layer. In this case, the corrosion condition of the pipeline surface needs to be understood by disassembling the cold insulation layer. In the inspection process of the pipeline with the cold insulation layer, whether the soft cold insulation layer fixed by the glue or the hard cold insulation layer fixed by the hard shell, the disassembly process needs to take a long time.

[0004] In the inspection process of the pipeline with the cold insulation layer, the longer the disassembly time of the cold insulation layer, the lower the pipeline inspection efficiency, and the change of the corrosion environment in the cold insulation layer also greatly reduces the reliability of the pipeline inspection result. For example, in the process of disassembling the cold insulation layer of a low-temperature pipeline, a large amount of condensed water condenses on the surface of the pipeline, and after the cold insulation layer is reassembled, the pipeline section disassembled through the cold insulation layer and the pipeline section without disassembling the cold insulation layer are in two corrosion environments, and the next time the pipeline is inspected, the inspection result is not representative. SUMMARY

[0005] Therefore, in view of the long disassembly time of the cold insulation layer in the existing pipeline inspection process with the cold insulation layer, which leads to low pipeline inspection efficiency and result reliability, a pipeline cold insulation device is provided, which realizes fast disassembly while ensuring the heat insulation performance of the pipeline, greatly improving the inspection efficiency and result reliability of the pipeline with the cold insulation layer.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A pipeline cold insulation device, comprising a shell and a cold insulation layer; the shell is an open and closed hollow structure, and the inner surface is nested with the cold insulation layer; the outer surface of the cold insulation layer matches the inner surface of the shell, and the inner surface of the shell is connected with the outer surface of the cold insulation layer; the inner surface of the cold insulation layer matches the outer surface of the cold insulation pipeline; when the shell is closed, the inner surface of the cold insulation layer is connected with the outer surface of the cold insulation pipeline, and the cold insulation pipeline is sealed and connected inside the shell.

[0008] Further, the shell comprises a first shell and a second shell; the first shell and the second shell are both half hollow cylindrical bodies; one axial end surface of the first shell and one axial end surface of the second shell are connected by a hinge, and the first shell and the second shell rotate circumferentially along the hinge; the other axial end surface of the first shell and the other axial end surface of the second shell are connected by a buckle; after the first shell and the second shell rotate circumferentially along the hinge to the axial end surface of the first shell and the axial end surface of the second shell being connected, the first shell and the second shell are locked by the buckle to form a complete hollow cylindrical body, thereby realizing the closure of the shell.

[0009] Further, the cold insulation layer comprises a first cold insulation layer and a second cold insulation layer; the outer surface of the first cold insulation layer matches the inner surface of the first shell, and the inner surface of the first shell is connected with the outer surface of the first cold insulation layer; the outer surface of the second cold insulation layer matches the inner surface of the second shell, and the inner surface of the second shell is connected with the outer surface of the second cold insulation layer; when the shell is closed, the inner surface of the cold insulation layer is connected with the outer surface of the cold insulation pipeline.

[0010] Further, the two radial inner end surfaces of the second shell are respectively provided with a half ring body and a first rubber layer; the inner surface of the half ring body is provided with a second rubber layer; the first rubber layer is a half ring structure, which is connected with the half ring body to form a ring body, and the inner surface of the ring body matches the outer surface of the cold insulation pipeline; the outer surface of the half ring body matches the radial inner end surface of the first shell; the outer surface of the first rubber layer matches the radial inner end surface of the second shell, and the outer surface of the first rubber layer is connected with the radial inner end surface of the second shell; the inner surface of the half ring body matches the outer surface of the second rubber layer, and the outer surface of the second rubber layer is connected with the inner surface of the half ring body; when the shell is closed, the radial inner end surface of the first shell is connected with the outer surface of the half ring body, and the inner surface of the ring body is connected with the outer surface of the cold insulation pipeline.

[0011] Further, when the outer surface of the first rubber layer is connected with the radial inner end surface of the second shell, it is fixed by bonding.

[0012] Further, when the outer surface of the second rubber layer is connected with the inner surface of the half ring body, it is fixed by bonding.

[0013] Further, the second shell radial inner end face and the semi-ring body are connected to form a ring body, and are fixed by bolt connection.

[0014] Further, the semi-ring body is provided with a first bolt hole at both ends, the second shell radial inner end face is provided with a second bolt hole at both ends, and the first bolt hole is matched with the second bolt hole; the semi-ring body and the second shell radial inner end face are fixed by bolt connection through the bolt passing through the first bolt hole and the second bolt hole and being threadedly connected with the first bolt hole and the second bolt hole.

[0015] Further, the first shell axial end face is provided with a first sealing ring, and the second shell axial end face is provided with a first sealing groove; the first sealing ring is matched with the first sealing groove; when the shell is closed, the first sealing ring is embedded in the first sealing groove to form a sealed connection.

[0016] Further, the first shell radial inner end face is provided with a second sealing ring, and the semi-ring body outer surface is provided with a second sealing groove; the second sealing ring is matched with the second sealing groove; when the shell is closed, the second sealing ring is embedded in the second sealing groove to form a sealed connection.

[0017] Further, the shell and the semi-ring body are made of hard polyurethane plastic, and the cold and heat preservation layer is made of molded polystyrene.

[0018] The beneficial technical effects of the present application are as follows:

[0019] The pipeline cold and heat preservation device of the present application can ensure the heat insulation performance of the pipeline while realizing rapid disassembly and assembly, greatly improving the inspection efficiency and result reliability of the cold and heat preservation layer pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a three-dimensional schematic view of the pipeline cold and heat preservation device of the present application;

[0021] Figure 2 Fig. 2 is a three-dimensional exploded view of the pipeline cold and heat preservation device of the present application;

[0022] Figure 3 Fig. 3 is a three-dimensional schematic view of the shell of the present application;

[0023] Figure 4 Fig. 4 is a three-dimensional schematic view of the semi-ring body of the present application;

[0024] Figure 5 Fig. 5 is a three-dimensional schematic view of the use of the pipeline cold and heat preservation device of the present application.

[0025] In the figure, 1, shell; 2, first cold insulation layer; 3, second cold insulation layer; 4, semi-ring body; 5, cold insulation pipeline; 11, first shell; 12, hinge; 13, second shell; 14, second bolt hole; 15, buckle; 16, first sealing ring; 17, first sealing groove; 18, first rubber layer; 41, second rubber layer; 42, first bolt hole; 43, second sealing groove. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below in combination with the drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "inner surface", "outer surface", "interior", "exterior" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Example 1

[0030] The present embodiment provides a pipeline cold insulation device, comprising a shell 1 and a cold insulation layer; the shell 1 is an open and closed hollow structure, and the inner surface is nested with the cold insulation layer; the outer surface of the cold insulation layer matches the inner surface of the shell 1, and the inner surface of the shell 1 is connected with the outer surface of the cold insulation layer; the inner surface of the cold insulation layer matches the outer surface of the cold insulation pipeline 5; when the shell 1 is closed, the inner surface of the cold insulation layer is connected with the outer surface of the cold insulation pipeline 5, and the cold insulation pipeline 5 is sealedly connected inside the shell 1.

[0031] In the embodiment, the shell 1 comprises a first shell 11 and a second shell 13; the first shell 11 and the second shell 13 are both semi-hollow cylindrical bodies; one axial end surface of the first shell 11 and one axial end surface of the second shell 13 are connected by a hinge 12, the first shell 11 and the second shell 13 rotate circumferentially along the hinge 12; the other axial end surface of the first shell 11 and the other axial end surface of the second shell 13 are connected by a buckle 15; the first shell 11 and the second shell 13 rotate circumferentially along the hinge 12 to the state that the axial end surfaces of the first shell 11 and the second shell 13 are connected in close contact to form a complete hollow cylindrical body, and then are locked by the buckle 15 to realize the closure of the shell 1.

[0032] In the embodiment, the cold insulation layer comprises a first cold insulation layer 2 and a second cold insulation layer 3; the outer surface of the first cold insulation layer 2 matches the inner surface of the first shell 11, and the inner surface of the first shell 11 is connected in close contact with the outer surface of the first cold insulation layer 2; the outer surface of the second cold insulation layer 3 matches the inner surface of the second shell 13, and the inner surface of the second shell 13 is connected in close contact with the outer surface of the second cold insulation layer 3; when the shell 1 is closed, the inner surface of the cold insulation layer is connected in close contact with the outer surface of the cold insulation pipeline 5.

[0033] In the embodiment, the two radial inner end surfaces of the second shell 13 are respectively provided with a semi-ring body 4 and a first rubber layer 18; the inner surface of the semi-ring body 4 is provided with a second rubber layer 41; the first rubber layer 18 is a semi-ring structure, which is connected in close contact with the semi-ring body 4 to form a ring body, the inner surface of the ring body matches the outer surface of the cold insulation pipeline 5; the outer surface of the semi-ring body 4 matches the radial inner end surface of the first shell 11; the outer surface of the first rubber layer 18 matches the radial inner end surface of the second shell 13, and the outer surface of the first rubber layer 18 is connected in close contact with the radial inner end surface of the second shell 13; the inner surface of the semi-ring body 4 matches the outer surface of the second rubber layer 41, and the outer surface of the second rubber layer 41 is connected in close contact with the inner surface of the semi-ring body 4; when the shell 1 is closed, the radial inner end surface of the first shell 11 is connected in close contact with the outer surface of the semi-ring body 4, and the inner surface of the ring body is connected in close contact with the outer surface of the cold insulation pipeline 5.

[0034] In the embodiment, when the outer surface of the first rubber layer 18 is connected in close contact with the radial inner end surface of the second shell 13, it is fixed by bonding; when the outer surface of the second rubber layer 41 is connected in close contact with the inner surface of the semi-ring body 4, it is fixed by bonding.

[0035] In the embodiment, when the radial inner end surface of the second shell 13 is connected in close contact with the semi-ring body 4 to form a ring body, it is fixed by bolt connection.

[0036] Specifically, the semi-ring body 4 is provided with a first bolt hole 42 at each end, the second shell 13 is provided with a second bolt hole 14 at each end of the radially inner end face, and the first bolt hole 42 is matched with the second bolt hole 14; the semi-ring body 4 and the radially inner end face of the second shell 13 are bolted and fixed by the bolt passing through the first bolt hole 42 and the second bolt hole 14 and being screwed with the first bolt hole 42 and the second bolt hole 14.

[0037] In the embodiment, the first shell 11 is provided with a first sealing ring 16 at the axial end face, and the second shell 13 is provided with a first sealing groove 17 at the axial end face; the first sealing ring 16 is matched with the first sealing groove 17; when the shell 1 is closed, the first sealing ring 16 is embedded in the first sealing groove 17 to form a sealed connection.

[0038] In the embodiment, the first shell 11 is provided with a second sealing ring at the radially inner end face, and the semi-ring body 4 is provided with a second sealing groove 43 on the outer surface; the second sealing ring is matched with the second sealing groove 43; when the shell 1 is closed, the second sealing ring is embedded in the second sealing groove 43 to form a sealed connection.

[0039] In the embodiment, the shell 1 and the semi-ring body 4 are made of hard polyurethane plastic, and the cold insulation layer is made of molded polystyrene.

[0040] When the pipeline cold insulation device of the embodiment is used, the following steps are included:

[0041] Step 1, nest the first cold insulation layer 2 on the inner surface of the first shell 11 and arrange it to the fitted state, and nest the second cold insulation layer 3 on the inner surface of the second shell 13 and arrange it to the fitted state;

[0042] Step 2, connect the inner surface of the second shell 13 to the outer surface of the cold insulation pipeline 5;

[0043] Step 3, bolt the semi-ring body 4 and the radially inner end face of the second shell 12, and connect the first rubber layer 18 and the semi-ring body 4 to form a ring body, and connect the inner surface of the ring body and the outer surface of the cold insulation pipeline 5;

[0044] Step 4, after the first shell 11 is rotated circumferentially along the hinge 12 to the fitted state, it is locked by the buckle 15;

[0045] Step 5, when checking, open the buckle 15, lift up the first shell 11, and check the outer surface of the pipeline 5;

[0046] Step 6, after the inspection is completed, close the first shell 11, close the buckle 15, and realize the reinstallation of the device.

[0047] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A pipe cold insulation device, characterized in that, The application relates to a cold-keeping and heat-insulating pipeline, which comprises a shell (1) and a cold-keeping and heat-insulating layer; the shell (1) is an open-close hollow structure, and the inner surface is nested with the cold-keeping and heat-insulating layer; the outer surface of the cold-keeping and heat-insulating layer is matched with the inner surface of the shell (1), and the inner surface of the shell (1) is connected with the outer surface of the cold-keeping and heat-insulating layer; the inner surface of the cold-keeping and heat-insulating layer is matched with the outer surface of a cold-keeping and heat-insulating pipeline (5); when the shell (1) is closed, the inner surface of the cold-keeping and heat-insulating layer is connected with the outer surface of the cold-keeping and heat-insulating pipeline (5), and the cold-keeping and heat-insulating pipeline (5) is sealingly connected in the shell (1). The shell (1) comprises a first shell (11) and a second shell (13); the first shell (11) and the second shell (13) are both half hollow columnar bodies; one axial end surface of the first shell (11) and one axial end surface of the second shell (13) are connected through a hinge (12), the first shell (11) and the second shell (13) are circumferentially rotated along the hinge (12), the other axial end surface of the first shell (11) and the other axial end surface of the second shell (13) are connected through a buckle (15); after the first shell (11) and the second shell (13) are circumferentially rotated along the hinge (12) to the axial end surfaces of the first shell (11) and the second shell (13) being connected, the first shell (11) and the second shell (13) are locked through the buckle (15) to form a complete hollow columnar body, and the shell (1) is closed. Two radial inner end surfaces of the second shell (13) are respectively provided with a half ring body (4) and a first rubber layer (18); the first rubber layer (18) is a half ring structure, is connected with the half ring body (4) to form a ring body, the inner surface of the ring body is matched with the outer surface of the cold-keeping and heat-insulating pipeline (5); the outer surface of the half ring body (4) is matched with the radial inner end surface of the first shell (11); when the shell (1) is closed, the radial inner end surface of the first shell (11) is connected with the outer surface of the half ring body (4), and the inner surface of the ring body is connected with the outer surface of the cold-keeping and heat-insulating pipeline (5); when the radial inner end surface of the second shell (13) is connected with the half ring body (4) to form the ring body, the ring body is fixed through bolt connection.

2. A pipe insulation device according to claim 1, characterised in that The cold-keeping and heat-insulating layer comprises a first cold-keeping and heat-insulating layer (2) and a second cold-keeping and heat-insulating layer (3); the outer surface of the first cold-keeping and heat-insulating layer (2) is matched with the inner surface of the first shell (11), and the inner surface of the first shell (11) is connected with the outer surface of the first cold-keeping and heat-insulating layer (2); the outer surface of the second cold-keeping and heat-insulating layer (3) is matched with the inner surface of the second shell (13), and the inner surface of the second shell (13) is connected with the outer surface of the second cold-keeping and heat-insulating layer (3); when the shell (1) is closed, the inner surface of the cold-keeping and heat-insulating layer is connected with the outer surface of the cold-keeping and heat-insulating pipeline (5).

3. The pipe insulation apparatus of claim 1, wherein; The inner surface of the semi-ring body (4) is provided with a second rubber layer (41); the outer surface of the first rubber layer (18) matches the radially inner end surface of the second shell (13), and the outer surface of the first rubber layer (18) is connected to the radially inner end surface of the second shell (13) in a fit manner; the inner surface of the semi-ring body (4) matches the outer surface of the second rubber layer (41), and the outer surface of the second rubber layer (41) is connected to the inner surface of the semi-ring body (4) in a fit manner.

4. A pipe insulation device according to claim 3, characterised in that When the outer surface of the first rubber layer (18) is connected to the radially inner end surface of the second shell (13) in a fit manner, the connection is fixed by bonding; when the outer surface of the second rubber layer (41) is connected to the inner surface of the semi-ring body (4) in a fit manner, the connection is fixed by bonding.

5. The pipe insulation apparatus of claim 1, wherein, Both ends of the semi-ring body (4) are provided with first bolt holes (42), both ends of the radially inner end surface of the second shell (13) are provided with second bolt holes (14), and the first bolt holes (42) match the second bolt holes (14); the semi-ring body (4) and the radially inner end surface of the second shell (13) are fixed by bolts passing through the first bolt holes (42) and the second bolt holes (14) and being threadedly connected with the first bolt holes (42) and the second bolt holes (14).

6. The pipe insulation apparatus of claim 1, wherein, The radially inner end surface of the first shell (11) is provided with a second sealing ring, and the outer surface of the semi-ring body (4) is provided with a second sealing groove (43); the second sealing ring matches the second sealing groove (43); when the shell (1) is closed, the second sealing ring is embedded in the second sealing groove (43) to form a sealed connection.

7. The pipe insulation apparatus of claim 1, wherein, The first shell (11) is provided with a first sealing ring (16) on the axial end surface, and the second shell (13) is provided with a first sealing groove (17) on the axial end surface; the first sealing ring (16) matches the first sealing groove (17); when the shell (1) is closed, the first sealing ring (16) is embedded in the first sealing groove (17) to form a sealed connection.

8. A pipe insulation device according to any one of claims 1 to 7, wherein The shell (1) and the semi-ring body (4) are made of hard polyurethane plastic, and the cold and heat insulation layer is made of molded polystyrene.

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