Nuclear-grade PIR (Polyisocyanurate) hard foam heat insulation layer for pipeline

Abstract

The utility model discloses a pipeline nuclear grade PIR hard foam heat insulation layer which comprises a pipeline body and further comprises a hard foam heat insulation shell installed outside the pipeline body, the outer wall of the hard foam heat insulation shell is wrapped with a waterproof film, the outer wall of the waterproof film is sleeved with a protection shell, and a plurality of arc-shaped plates distributed at equal intervals are installed on the outer wall of the protection shell. According to the pipeline nuclear grade PIR hard foam heat insulation layer, the hard foam heat insulation shell can be physically waterproof and protected through the waterproof film and the protection shell, impact borne by the protection shell can be buffered through the buffering assembly, and meanwhile when the impact force is large and the deformation limit of the buffering assembly is reached, the protection shell can be prevented from being damaged. When the protective shell is collided, a pressure sensor in the buffer assembly is pressed, the pressure sensor transmits a signal to a controller, and the controller transmits the signal to an external receiver, so that a maintainer can know that the protective shell is collided severely at the first time, and overhaul and check conditions in time are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to hard bubble heat insulation layer technical field, specifically is a pipeline nuclear grade PIR hard bubble heat insulation layer. BACKGROUND

[0002] The pipeline nuclear grade PIR hard bubble heat insulation layer is a high-performance heat insulation layer for nuclear engineering pipeline, which is usually made of polyisocyanurate (PIR) as raw material, foamed and formed into a hard bubble heat insulation pipe shell, and installed on the outside of the pipeline.

[0003] The hard bubble heat insulation pipe shell usually needs to be protected after installation. Although the hard bubble heat insulation pipe shell has certain mechanical strength, it is easy to be impacted, scratched and damaged by external force in the subsequent construction process or use environment, which affects the heat preservation performance and service life. At present, a protective shell is installed on the outside of the hard bubble heat insulation pipe shell to protect the hard bubble heat insulation pipe shell. Although it can better resist certain external impact and scratching, it does not have an alarm function. When the shell is pressed or impacted with great force, the shell will also deform and squeeze the hard bubble heat insulation pipe shell. It is difficult for maintenance personnel to know in the first time when the shell is pressed or impacted. SUMMARY

[0004] The utility model aims at providing a pipeline nuclear grade PIR hard bubble heat insulation layer to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pipeline nuclear grade PIR hard bubble heat insulation layer, comprising: a pipeline body, further comprising: a hard bubble heat insulation shell installed on the outside of the pipeline body, a waterproof film wrapped on the outer wall of the hard bubble heat insulation shell, and a protective shell sleeved on the outer wall of the waterproof film, a plurality of arc-shaped plates equidistantly distributed on the outer wall of the protective shell, a buffer assembly installed on the top of the arc-shaped plate, an anti-collision plate installed on the top of the buffer assembly, a pressure sensor installed in the buffer assembly, and a sealing plate fixed on both ends of the protective shell, and a controller installed on one side of the outer wall of one of the sealing plates.

[0006] The buffer assembly comprises a stand, a square tube slidingly connected to the outer wall of the stand, and a spring sleeved on the outside of the square tube.

[0007] A bonding layer is connected between the outer wall of the hard bubble heat insulation shell and the pipeline body.

[0008] A heat insulation pad is connected between the outer wall of the sealing plate and the pipeline body, and the sealing plate has an annular structure.

[0009] The pressure sensor is connected to the controller through a signal line, and the controller has a built-in communication module.

[0010] The upper and lower ends of the spring are connected to the anti-collision plate and the arc-shaped plate respectively.

[0011] Compared with the prior art, the pipe nuclear grade PIR hard foam insulation layer has the beneficial effects that:

[0012] The pipe nuclear grade PIR hard foam insulation layer has the beneficial effects that: the waterproof membrane and the protective shell are arranged to have a physical waterproof and protective effect on the hard foam insulation shell; the buffer assembly is arranged to have a buffering effect on the impact received by the protective shell; when the impact is relatively large and the buffer assembly reaches the deformation limit, the pressure sensor in the buffer assembly is pressed, the pressure sensor transmits a signal to the controller, the controller transmits the signal to the external receiver, and the maintenance personnel can know that the protective shell is impacted relatively heavily in the first time, so that timely maintenance and inspection can be facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The pipe nuclear grade PIR hard foam insulation layer has the beneficial effects that: the waterproof membrane and the protective shell are arranged to have a physical waterproof and protective effect on the hard foam insulation shell; the buffer assembly is arranged to have a buffering effect on the impact received by the protective shell; when the impact is relatively large and the buffer assembly reaches the deformation limit, the pressure sensor in the buffer assembly is pressed, the pressure sensor transmits a signal to the controller, the controller transmits the signal to the external receiver, and the maintenance personnel can know that the protective shell is impacted relatively heavily in the first time, so that timely maintenance and inspection can be facilitated.

[0014] Fig. 2 The pipe nuclear grade PIR hard foam insulation layer has the beneficial effects that: the waterproof membrane and the protective shell are arranged to have a physical waterproof and protective effect on the hard foam insulation shell; the buffer assembly is arranged to have a buffering effect on the impact received by the protective shell; when the impact is relatively large and the buffer assembly reaches the deformation limit, the pressure sensor in the buffer assembly is pressed, the pressure sensor transmits a signal to the controller, the controller transmits the signal to the external receiver, and the maintenance personnel can know that the protective shell is impacted relatively heavily in the first time, so that timely maintenance and inspection can be facilitated.

[0015] Fig. 3 The pipe nuclear grade PIR hard foam insulation layer has the beneficial effects that: the waterproof membrane and the protective shell are arranged to have a physical waterproof and protective effect on the hard foam insulation shell; the buffer assembly is arranged to have a buffering effect on the impact received by the protective shell; when the impact is relatively large and the buffer assembly reaches the deformation limit, the pressure sensor in the buffer assembly is pressed, the pressure sensor transmits a signal to the controller, the controller transmits the signal to the external receiver, and the maintenance personnel can know that the protective shell is impacted relatively heavily in the first time, so that timely maintenance and inspection can be facilitated.

[0016] In the drawings: 1, pipe body; 2, hard foam insulation shell; 3, waterproof membrane; 4, protective shell; 5, arc-shaped plate; 6, buffer assembly; 601, stand; 602, square tube; 603, spring; 7, anti-collision plate; 8, pressure sensor; 9, sealing plate; 10, controller; 11, adhesive layer; 12, heat insulation pad. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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.

[0018] Please refer to Figs. 1-3 The pipe nuclear grade PIR hard foam insulation layer comprises: a pipe body 1, a hard foam insulation shell 2 mounted on the outside of the pipe body 1, a waterproof membrane 3 wrapped on the outer wall of the hard foam insulation shell 2, a protective shell 4 sleeved on the outer wall of the waterproof membrane 3, a plurality of arc-shaped plates 5 equidistantly distributed and mounted on the outer wall of the protective shell 4, a buffer assembly 6 mounted on the top of the arc-shaped plate 5, an anti-collision plate 7 mounted on the top of the buffer assembly 6, a pressure sensor 8 mounted in the buffer assembly 6, a sealing plate 9 fixed on both ends of the protective shell 4, and a controller 10 mounted on the outer wall of one of the sealing plates 9.

[0019] It should be noted here that the hard foam insulation shell 2 can play a heat insulation protection role for the pipeline body 1, the waterproof film 3 and the protection shell 4 can play a physical waterproof and protection role for the hard foam insulation shell 2, and the buffer assembly 6 can play a buffering role for the impact received by the protection shell 4. When the impact is relatively large and the deformation limit of the buffer assembly 6 is reached, the pressure sensor 8 in the buffer assembly 6 is pressed. At this time, the pressure sensor 8 transmits the signal to the controller 10, and the controller 10 transmits the signal to the external receiver, so that the maintenance personnel can know that the protection shell 4 is impacted relatively large at the first time, and can check the situation in time. The small scratch and small collision on the buffer assembly 6 within the deformation range of the buffer assembly 6 will not damage the protection shell 4, and the pressure sensor 8 will not be pressed, so as to avoid the frequent alarm of the controller 10.

[0020] In a preferred embodiment, the buffer assembly 6 comprises a column 601, a square tube 602 slidingly connected to the outer wall of the column 601, and a spring 603 sleeved outside the square tube 602.

[0021] It should be noted here that when the protection shell 4 is impacted by external force, the external force will impact the anti-collision plate 7, and the anti-collision plate 7 will drive the square tube 602 to move towards the column 601, and the spring 603 will be compressed to buffer the impact force.

[0022] In a preferred embodiment, the hard foam insulation shell 2 and the outer wall of the pipeline body 1 are connected with an adhesive layer 11.

[0023] It should be noted here that the hard foam insulation shell 2 can be more firmly installed on the pipeline body 1.

[0024] In a preferred embodiment, the sealing plate 9 and the outer wall of the pipeline body 1 are connected with a heat insulation pad 12, and the sealing plate 9 is in a ring structure.

[0025] It should be noted here that the sealing plate 9 can play a sealing protection role for both ends of the hard foam insulation shell 2.

[0026] Working principle: the hard foam heat insulation shell 2 set can play a heat insulation protection effect on the pipeline body 1, the waterproof film 3 and the protection shell 4 set can play a physical waterproof and protection effect on the hard foam heat insulation shell 2, when the protection shell 4 is impacted by external force, the external force will impact on the anti-collision plate 7, the anti-collision plate 7 drives the square tube 602 to move to the column 601, the spring 603 is extruded to buffer the impact force, when the impact force is larger, reaches the deformation limit of the extruded spring 603, the pressure sensor 8 is pressed on the column 601, at this time the pressure sensor 8 will transmit the signal to the controller 10, the signal is transmitted to the external receiver through the controller 10, the maintenance personnel can know that the protection shell 4 is impacted by larger impact in the first time, the maintenance and inspection can be carried out in time, the small scratch and small collision of ordinary time impact on the anti-collision plate 7, within the deformation range of the spring 603, the protection shell 4 is not damaged, the pressure sensor 8 is not pressed, the frequent alarm of the controller 10 is avoided.

[0027] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. A pipe nuclear grade PIR rigid foam insulation layer, comprising: a pipe body (1); characterized in that it further comprises a rigid foam insulation shell (2) mounted on the outside of the pipe body (1), an outer wall of the rigid foam insulation shell (2) is wrapped with a waterproof film (3), an outer wall of the waterproof film (3) is sleeved with a protective shell (4), an outer wall of the protective shell (4) is mounted with a plurality of equidistantly distributed arc-shaped plates (5), a top of the arc-shaped plate (5) is mounted with a buffer assembly (6), a top of the buffer assembly (6) is mounted with an anti-collision plate (7), a pressure sensor (8) is mounted in the buffer assembly (6), both ends of the protective shell (4) are fixed with end plates (9), and an outer wall of one of the end plates (9) is mounted with a controller (10).

2. A pipe nuclear grade PIR rigid foam insulation layer according to claim 1, characterised in that: The buffer assembly (6) comprises a stand (601), a square tube (602) slidingly connected to an outer wall of the stand (601), and a spring (603) sleeved on the outside of the square tube (602).

3. A pipe nuclear grade PIR rigid foam insulation layer according to claim 1, characterized in that: A bonding layer (11) is connected between the rigid foam insulation shell (2) and an outer wall of the pipe body (1).

4. A pipe nuclear grade PIR rigid foam insulation layer according to claim 1, characterized in that: A heat insulation pad (12) is connected between the end plate (9) and an outer wall of the pipe body (1), and the end plate (9) has an annular structure.

5. A pipe nuclear grade PIR rigid foam insulation layer according to claim 1, characterized in that: The pressure sensor (8) is connected to the controller (10) through a signal line, and the controller (10) is built-in with a communication module.

6. A pipe nuclear grade PIR rigid foam insulation layer according to claim 2, characterized by: The spring (603) is connected to the anti-collision plate (7) and the arc-shaped plate (5) at the upper and lower ends, respectively.

Images