Cold storage wall-penetrating metal pipeline cold-bridge-preventing device

Abstract

The application discloses a cold storage wall-penetrating metal pipeline cold-bridge prevention device, which comprises a mounting base, a shell main body and a closed plug, the mounting base is connected to one end of the shell main body, and the closed plug is connected to the other end of the shell main body. The application has the beneficial effects that: the mounting base, the shell main body and the closed plug are arranged, the mounting base is composed of two polyurethane pressing plates and two plastic bases, the shell main body is composed of two plastic tube shells, and the closed plug is composed of two plastic plugs; the structure is reasonable and simple, the weight is light, the installation process is convenient and fast, the device can be widely applied to cold-bridge prevention treatment of cold storage wall-penetrating metal pipelines, and has popularization significance in engineering practice; the sizes of various components can be made into different specifications according to the outer diameters of the used metal pipelines and the use environment; the shell main body is filled with polyurethane foam inside, the gap between the closed plug and the pipeline is filled with rubber plastic heat preservation material, and the shell main body is sealed by using moisture-proof and steam-proof materials after installation.

Description

Technical Field

[0001] This invention relates to the field of cold storage pipeline installation technology, and in particular to a device for preventing cold bridges in metal pipes passing through walls in cold storage. Background Technology

[0002] Due to temperature differences between adjacent storage rooms or between the inside and outside of a cold storage facility, the connection of metal pipes or cable conduits can create "cold bridges." These bridges are prone to icing, frost, and condensation. If not addressed promptly, these problems worsen, damaging the insulation layer and components near the bridge. Cold bridges are arguably one of the main causes of damage to cold storage insulation systems, reducing insulation performance, significantly increasing energy consumption, and even compromising building structure. Therefore, addressing cold bridges directly impacts the insulation and durability of the cold storage facility.

[0003] 1. A Chinese patent discloses a sliding support for preventing cold bridges in steel-jacketed steel pipes (Publication No.: CN2898543Y). This sliding support, from the inside out, includes a working steel pipe, a steel bushing, an inorganic insulation layer, an air layer, and an outer protective steel pipe. Three sliding supports, evenly arranged in three circumferential directions, are connected at one end to the steel bushing and slide in contact with the outer protective steel pipe at the other end. Its unique feature is that a rigid inorganic insulation material for heat insulation is provided between the steel bushing and the working steel pipe; fastening steel strips are provided on the outer surface of the inorganic insulation layer and on both sides of the sliding supports. This invention solves the problem of heat leakage caused by the sliding support itself, eliminates the impact of external corrosion failure caused by it, and ensures the actual service life of the outer protective pipe. The increase in production costs caused by this product is minimal, resulting in significant economic benefits.

[0004] 2. For example, Chinese patent discloses a steel pipe support structure for preventing cold bridges in large-diameter pipelines (publication number: CN216010016U), which includes a steel arc plate to prevent cold bridges in pipelines. The bottom of the steel arc plate is set on an insulation layer, which includes anti-corrosion pads. The anti-corrosion pads are provided with fixing plates on both the upper and lower sides. The anti-corrosion pads are placed between the two fixing plates, which are connected by screws. One end of the steel pipe support is provided on the fixing plate above the anti-corrosion pads, and the other end of the steel pipe support is fixedly welded to the steel arc plate. A core insulation layer is added to the lower part of the steel pipe support, which completely solves the shortcomings of traditional steel pipe supports, such as poor insulation performance, resulting in a large amount of material waste and affecting the appearance during later insulation construction.

[0005] In the past, the common method for preventing cold bridges in metal pipes passing through walls in cold storage was to pass the pipe and the insulation and moisture-proof layer through the wall as a whole, and to use polyurethane secondary foaming between the outer layer of the insulation layer and the wall. However, due to pipe vibration and displacement during construction or thermal expansion and contraction during use, this method may cause damage to the integrity of the pipe and damage to the insulation layer after long-term use.

[0006] Therefore, it is necessary to propose a cold bridge prevention device for metal pipes passing through walls in cold storage to address the above problems. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the purpose of this invention is to provide a cold bridge prevention device for metal pipes penetrating the wall of a cold storage facility, so as to solve the above problems.

[0008] A device for preventing cold bridges in metal pipes passing through walls in cold storage includes a mounting base, a housing body, and a sealing plug. The mounting base is connected to one end of the housing body, and the sealing plug is connected to the other end of the housing body.

[0009] Preferably, the mounting base includes a first plastic base, a second plastic base, a first polyurethane pressure plate, and a second polyurethane pressure plate. The first polyurethane pressure plate is attached to the inner edge of the top of the first plastic base, and the second polyurethane pressure plate is attached to the inner edge of the top of the second plastic base. The first plastic base and the second plastic base are connected.

[0010] Preferably, the first plastic base has a base concave edge on its lateral edge, the second plastic base has a base convex edge on its lateral edge, and both the bottom edges of the first and second plastic bases have base latches. The first and second plastic bases are connected by the base concave edge and the base convex edge.

[0011] Preferably, both the top of the first plastic base and the second plastic base are provided with mounting holes, and the first plastic base and the second plastic base are fixed to the wall through the mounting holes.

[0012] Preferably, the outer shell body includes a first plastic shell and a second plastic shell, and the first plastic shell and the second plastic shell are connected.

[0013] Preferably, the first plastic shell has a locking groove on its lateral edge, and the second plastic shell has a locking strip on its lateral edge. The first plastic shell and the second plastic shell are locked together by the locking groove and the locking strip. Both the first plastic shell and the second plastic shell have an outer flange on their periphery, and the outer flange is fitted with a clamp.

[0014] Preferably, both ends of the first and second plastic shells are provided with mounting points, and the mounting base and the shell body are connected by the mounting points engaging with the base slots.

[0015] Preferably, the sealing plug includes a first sealing plug and a second sealing plug, and the first sealing plug and the second sealing plug are connected.

[0016] Preferably, the first sealing plug has a sealing disc recess on its lateral edge, and the second sealing plug has a sealing disc protrusion on its lateral edge. The first sealing plug and the second sealing plug are tightly connected by the sealing disc recess and the sealing disc protrusion.

[0017] Preferably, the top of both the first and second sealing plugs is provided with a sealing plate slot, and the sealing plug and the outer shell body are connected by the installation point engaging with the sealing plate slot.

[0018] Compared with existing technologies, the present invention has the following advantages: The present invention comprises an installation base, a main outer shell, and a sealing plug. The installation base consists of two polyurethane pressure plates and two plastic bases, the main outer shell consists of two plastic pipe shells, and the sealing plug consists of two plastic plugs. The structure is reasonable and simple, lightweight, and the installation process is convenient and quick. It can be widely used for the anti-cold bridge treatment of metal pipes penetrating walls in cold storage, and has significant implications for practical engineering applications. The dimensions of each component can be customized according to the outer diameter of the metal pipe and the operating environment. The interior of the main outer shell is filled with polyurethane foam, and the gap between the sealing plug and the pipe is filled with rubber and plastic insulation material. After installation, the main outer shell is sealed with moisture-proof and vapor-proof material. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the cold storage through-wall metal pipe anti-cold bridge device of the present invention;

[0020] Figure 2 This is a structural diagram of the mounting base of the present invention;

[0021] Figure 3 This is a structural diagram of the outer shell of the present invention;

[0022] Figure 4 This is a diagram of the closed plug structure of the present invention;

[0023] Figure 5 This is an unfolded structural diagram of the mounting base of the present invention;

[0024] Figure 6 This is an unfolded structural diagram of the outer shell of the present invention;

[0025] Figure 7 This is a diagram showing the unfolded structure of the closed plug of the present invention;

[0026] Figure 8 This is a structural diagram of the first plastic base of the present invention;

[0027] Figure 9 This is a structural diagram of the second plastic base of the present invention;

[0028] Figure 10 This is a structural diagram of the first plastic shell of the present invention;

[0029] Figure 11 This is a structural diagram of the second plastic shell of the present invention;

[0030] Figure 12 This is a structural diagram of the first closed plug of the present invention.

[0031] Figure 13 This is a structural diagram of the second closed plug of the present invention.

[0032] The attached figures are labeled as follows: 1. Mounting base; 2. Outer shell body; 3. Sealing plug; 101. First plastic base; 102. Second plastic base; 103. First polyurethane pressure plate; 104. Second polyurethane pressure plate; 105. Base concave flange; 106. Base convex flange; 107. Base latch; 108. Mounting and fixing hole; 201. First plastic outer shell; 202. Second plastic outer shell; 203. Clamping groove; 204. Clamping square strip; 205. Outer flange; 207. Mounting point; 301. First sealing plug; 302. Second sealing plug; 303. Sealing plate concave flange; 304. Sealing plate convex flange; 305. Sealing plate latch. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0037] like Figure 1 and combined Figures 2 to 13 As shown, a cold storage wall-penetrating metal pipe anti-cold bridge device includes a mounting base 1, an outer shell 2, and a sealing plug 3. The mounting base 1 is connected to one end of the outer shell 2, and the sealing plug 3 is connected to the other end of the outer shell 2.

[0038] Furthermore, the mounting base 1 includes a first plastic base 101, a second plastic base 102, a first polyurethane pressure plate 103, and a second polyurethane pressure plate 104. The first polyurethane pressure plate 103 is attached to the inner edge of the top of the first plastic base 101, and the second polyurethane pressure plate 104 is attached to the inner edge of the top of the second plastic base 102. The first plastic base 101 and the second plastic base 102 are connected.

[0039] Furthermore, the first plastic base 101 has a base recess 105 on its lateral edge, and the second plastic base 102 has a base protrusion 106 on its lateral edge. The bottom edges of the first plastic base 101 and the second plastic base 102 are both provided with base latches 107. The first plastic base 101 and the second plastic base 102 are fastened together by the base recess 105 and the base protrusion 106.

[0040] Furthermore, the top of the first plastic base 101 and the second plastic base 102 are both provided with mounting holes 108, and the first plastic base 101 and the second plastic base 102 are fixed to the wall through the mounting holes 108.

[0041] Furthermore, the outer shell body 2 includes a first plastic shell 201 and a second plastic shell 202, which are connected together.

[0042] Furthermore, the first plastic shell 201 has a locking groove 203 on its lateral edge, and the second plastic shell 202 has a locking square strip 204 on its lateral edge. The first plastic shell 201 and the second plastic shell 202 are locked together by the locking groove 203 and the locking square strip 204. The outer periphery of the first plastic shell 201 and the second plastic shell 202 is provided with an outer flange 205, and the outer flange 205 is fitted with a clamp.

[0043] Furthermore, both ends of the first plastic shell 201 and the second plastic shell 202 are provided with mounting points 207, and the mounting base 1 and the shell body 2 are connected by the mounting points 207 being engaged into the base slot 107.

[0044] Furthermore, the sealing plug 3 includes a first sealing plug 301 and a second sealing plug 302, which are connected together.

[0045] Furthermore, the first sealing plug 301 has a sealing disc concave edge 303 on its lateral edge, and the second sealing plug 302 has a sealing disc protrusion 304 on its lateral edge. The first sealing plug 301 and the second sealing plug 302 are tightly connected by the sealing disc concave edge 303 and the sealing disc protrusion 304.

[0046] Furthermore, the top of the first sealing plug 301 and the second sealing plug 302 are both provided with sealing plate slots 305, and the sealing plug 3 and the outer shell body 2 are connected by the installation slots 207 being engaged into the sealing plate slots 305.

[0047] Compared with the prior art, the present invention has the following advantages: The present invention is provided with an installation base 1, an outer shell body 2, and a sealing plug 3. The installation base 1 is composed of two polyurethane pressure plates and two plastic bases, the outer shell body is composed of two plastic pipe shells, and the sealing plug is composed of two plastic plugs. The structure is reasonable and simple, lightweight, and the installation process is convenient and quick. It can be widely used for the anti-cold bridge treatment of metal pipes penetrating the wall in cold storage, and has promotional significance in engineering practice. The dimensions of each component can be made into different specifications according to the outer diameter of the metal pipe used and the usage environment. The interior of the outer shell body is filled with polyurethane foam, and the gap between the sealing plug and the pipe is filled with rubber and plastic insulation material. After installation, the outer shell body is sealed with moisture-proof and vapor-proof material.

[0048] Two plastic bases are clamped together by the base concave flange 105 and the base convex flange 106. The interface can withstand radial stress. They are fixed to the wall by expansion bolts or the like through the mounting holes 108 and can withstand axial stress. They can withstand radial stress by screwing into the outer shell body 2 through the base latch 107. The first plastic shell 201 and the second plastic shell 202 are tightly clamped together as a whole by the clamping groove 203 and the clamping square strip 204. They are clamped by an auxiliary clamp on the outer flange 205 and can withstand radial stress. They are clamped to the mounting base 1 through the mounting point 207 and can withstand axial stress. The sealing plug 3 is clamped together by the sealing disc concave flange 303 and the sealing disc convex flange 304. The interface can withstand radial stress. It can withstand radial stress by screwing into the outer shell body 2 through the sealing disc latch 305.

[0049] The plastic base 1, outer shell 2, and sealing plug 3 are made of PE material and can be used at a minimum temperature of -100℃.

[0050] Depending on the temperature of the installation environment, the distance between the inner diameter of the outer shell 2 and the outer diameter of the pipe is the thickness of the insulation layer. Generally, when the installation environment temperature is -40℃, the distance between the inner diameter of the outer shell 2 and the outer diameter of the pipe should not be less than 100mm, the length of the outer shell 2 should not be less than 1.5m, the diameter of the mounting base 1 is 200mm larger than the diameter of the outer shell 2, and the length of the mounting base 1 is 200mm.

[0051] During installation, the two mounting bases 1 should be kept on the same plane, the outer layer of the outer shell 2 should be fastened tightly without any gaps, the interior of the outer shell 2 should be filled with polyurethane foam, and the gap between the sealing plug 2 and the pipe should be filled with rubber and plastic insulation material. After installation, the outer layer of the device should be sealed with moisture-proof and vapor-proof material. The dimensions of each component can be made into different specifications according to the outer diameter of the metal pipe used and the usage environment.

[0052] Working principle:

[0053] Step 1: Attach the first polyurethane pressure plate 103 to the inner edge of the top of the first plastic base 101, and attach the second polyurethane pressure plate 104 to the inner edge of the top of the second plastic base 102. Radially combine the first plastic base 101 and the second plastic base 102 on the outside of the metal pipe to form a whole. The base concave edge 105 and the base protruding edge 106 are tightly fitted and locked. Secure the mounting base 1 to the wall through the mounting fixing hole 108, and ensure that the first plastic base 101 and the second plastic base 102 are coplanar.

[0054] Step 2: Axially assemble the first plastic shell 201 and the second plastic shell 202 on the outside of the metal pipe, and axially clamp the locking groove 203 and the locking square bar 204, aligning their ends. Insert the mounting points 207 on the shell body 2 into the base slots 107 on the mounting base 1, thereby installing the shell body 2 onto the mounting base 1.

[0055] Step 3: The space between the outer shell 2 and the pipe is completely filled with polyurethane foam, and the pipe is tightly wrapped with insulation material.

[0056] Step 4: Combine the first sealing plug 301 and the second sealing plug 302 radially on the outside of the pipe to form a whole. At this time, the sealing disc concave flange 303 and the sealing disc convex flange 304 are tightly fitted and locked together, and the first sealing plug 301 and the second sealing plug 302 are coplanar. Insert the mounting point 207 on the outer shell body 2 into the sealing disc slot 305 on the sealing plug 3, thereby installing the sealing plug 3 onto the outer shell body 2.

[0057] Step 5: After the wall insulation is completed, the joint between the insulation and the device is sealed with polyurethane sealant, and the outer layer of the cold bridge prevention device for the metal pipes passing through the wall in the cold storage is wrapped or sprayed with moisture-proof and vapor-barrier material.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for preventing cold bridges in metal pipes passing through walls in cold storage, characterized in that: The device includes a mounting base (1), a housing body (2), and a sealing plug (3). The mounting base (1) is connected to one end of the housing body (2), and the sealing plug (3) is connected to the other end of the housing body (2). The mounting base (1) includes a first plastic base (101), a second plastic base (102), a first polyurethane pressure plate (103), and a second polyurethane pressure plate (104). The first polyurethane pressure plate (103) is attached to the inner edge of the top of the first plastic base (101), and the second polyurethane pressure plate (104) is attached to the top of the second plastic base (102). The inner edge of the first plastic base (101) and the second plastic base (102) are connected; the first plastic base (101) has a base recess (105) on its lateral edge, and the second plastic base (102) has a base flange (106) on its lateral edge. The bottom edges of the first plastic base (101) and the second plastic base (102) are both provided with base latches (107). The first plastic base (101) and the second plastic base (102) are fastened together by the base recess (105) and the base flange (106); the first plastic base (101) 1) Both the top of the first plastic base (101) and the second plastic base (102) are provided with mounting holes (108), and the first plastic base (101) and the second plastic base (102) are fixed to the wall through the mounting holes (108); the outer shell body (2) includes a first plastic shell (201) and a second plastic shell (202), and the first plastic shell (201) and the second plastic shell (202) are connected; the first plastic shell (201) has a locking groove (203) on its lateral edge, and the second plastic shell (202) has a locking square strip (204) on its lateral edge. The first plastic shell (201) and the second plastic shell (202) are fastened together by a clamping groove (203) and a clamping strip (204). The first plastic shell (201) and the second plastic shell (202) are both provided with an outer flange (205), and the outer flange (205) is fitted with a clamp. The first plastic shell (201) and the second plastic shell (202) are both provided with mounting points (207). The mounting base (1) and the shell body (2) are connected by the mounting points (207) being engaged into the base slot (107).

2. The anti-cold bridge device for metal pipes penetrating walls in cold storage as described in claim 1, characterized in that: The sealing plug (3) includes a first sealing plug (301) and a second sealing plug (302), and the first sealing plug (301) and the second sealing plug (302) are connected.

3. The cold storage wall-penetrating metal pipe anti-cold bridge device as described in claim 2, characterized in that: The first sealing plug (301) has a sealing disc concave edge (303) on its lateral edge, and the second sealing plug (302) has a sealing disc convex edge (304) on its lateral edge. The first sealing plug (301) and the second sealing plug (302) are tightly connected by the sealing disc concave edge (303) and the sealing disc convex edge (304).

4. The cold storage wall-penetrating metal pipe anti-cold bridge device as described in claim 3, characterized in that: The top of the first sealing plug (301) and the second sealing plug (302) are both provided with sealing plate slots (305). The sealing plug (3) and the outer shell body (2) are connected by the installation point (207) being inserted into the sealing plate slots (305).

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