Thermal insulation pipeline for producing BOPP (biaxially-oriented polypropylene) aluminum-plated base film
By designing insulation cavities and filling cavities at the pipe and valve connections of BOPP film production equipment, and using insulation materials and rotating sealing components, the heat transfer problem was solved, resulting in better insulation performance.
Patent Information
- Application Number
- CN202520540047.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Heat transfer is prone to occur at the pipe and valve connections of BOPP film production equipment, leading to heat loss.
An insulated pipe structure was designed, comprising a transport pipe, an insulated pipe, a connecting insulated component, and a rotating sealing component. By forming an insulated cavity and a filling cavity at the connection, filling them with insulated material, and reducing the leakage of hot air by using the rotating sealing component.
It effectively reduces heat transfer at pipe and valve connections, improves insulation performance, and ensures heat retention.
Smart Images
Figure CN223825775U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to BOPP film production technical field, especially relate to a heat preservation pipeline for producing BOPP aluminum coated base film. BACKGROUND
[0002] Biaxially oriented polypropylene film is short for BOPP film, which is formed by melting and plasticizing polypropylene particles through an extruder, extruding into a flat profile, and then being stretched in two directions to form a finished product. BOPP film plays an important role in the fields of packaging, printing, electronics, agriculture, etc.
[0003] BOPP film production equipment is usually large equipment, and in some edge fittings, the liquid in the pipeline also needs to be heat preserved, but heat transfer with the outside world is easy to occur at the connection between the pipeline and the valve. UTILITY MODEL CONTENT
[0004] In view of the problems mentioned in the background art, the utility model aims to provide a heat preservation pipeline for producing BOPP aluminum coated base film to solve the problems mentioned in the background art.
[0005] The above technical purpose of the utility model is realized through the following technical scheme:
[0006] A heat preservation pipeline for producing BOPP aluminum coated base film, comprising a transport pipe and a valve, the valve being installed between two groups of transport pipes, the transport pipe being sleeved with a heat preservation pipe, a heat preservation cavity being formed between the heat preservation pipe and the transport pipe, a connecting heat preservation assembly being installed between the valve and the transport pipe, the connecting heat preservation assembly comprising an inner cavity wall sleeved on the outside of the two heat preservation pipes and an outer cavity wall sleeved on the outside of the inner cavity wall, a connecting cavity being formed between the inner cavity wall and the outer wall of the valve, the connecting cavity being communicated with the heat preservation cavity, and a filling cavity being formed between the inner cavity wall and the outer cavity wall.
[0007] Preferably, the connecting heat preservation assembly is a structure symmetrical about the axis of the transport pipe, the connecting cavities on the front and back sides are communicated, supporting frames are installed on the two heat preservation pipes, and the outer cavity walls on the two sides are inserted into the supporting frames at the two ends to merge into a closed connecting cavity.
[0008] Preferably, the connecting heat preservation assembly comprises a rotating sealing assembly, and the rotating sealing assembly is tightly sealed with the handle of the valve.
[0009] Preferably, the rotating sealing assembly comprises two groups of sealing rings spliced together, the inner wall of the sealing ring is tightly sealed with the handle, the top end of the sealing ring is provided with an accommodating groove with an opening facing the handle, the accommodating grooves on the two sides are communicated, and an elastic ring is installed in the accommodating groove and shrinks towards the handle.
[0010] Preferably, the elastic ring is detachably connected at the head and tail.
[0011] Preferably, the bottom end of the sealing ring is tightly sealed with the top end of the inner cavity wall.
[0012] Preferably, the filling cavity is provided with an injection port for filling the heat preservation material.
[0013] Preferably, the outer wall of the heat preservation tube at both ends of the inner cavity wall is sleeved with a sealing ring, and the sealing ring seals between the inner cavity wall and the heat preservation tube.
[0014] The utility model provides a kind of heat preservation pipeline for producing BOPP aluminum coated base film, sealing is carried out to hot air in transport pipe and valve by connecting cavity and heat preservation cavity, reduce heat transfer, by filling heat preservation material in filling cavity, further increase the heat preservation effect of connecting portion, the sealing effect between inner cavity wall and heat preservation tube is increased by sealing ring;By rotating sealing assembly, the overflow of hot gas when handle is rotated is reduced.The device structure is simple, and heat preservation is realized by reducing heat transfer, and the heat preservation effect is strong.
[0015] Additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A kind of heat preservation pipeline for producing BOPP aluminum coated base film is provided for the utility model, and its perspective view is shown in the figure;
[0017] Figure 2 A kind of heat preservation pipeline for producing BOPP aluminum coated base film is provided for the utility model, and its top view is shown in the figure;
[0018] Figure 3 For Figure 2 Sectional view along A-A direction.
[0019] Reference signs: 1, transport pipe;2, heat preservation tube;3, heat preservation cavity;4, connecting heat preservation assembly;41, inner cavity wall;42, connecting cavity;43, outer cavity wall;44, filling cavity;45, injection port;46, rotating sealing assembly;461, sealing ring;462, elastic ring;463, accommodating groove;5, sealing ring;6, support frame;7, valve. DETAILED DESCRIPTION
[0020] The embodiments of the utility model are described in detail below, and the examples of the embodiments are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.
[0021] Example 1
[0022] Reference Figures 1 to 3The heat preservation pipeline for producing BOPP aluminum-coated base film comprises a conveying pipe 1 and a valve 7, the valve 7 is installed between two groups of conveying pipes 1, the conveying pipe 1 is sleeved with a heat preservation pipe 2, a heat preservation cavity 3 is formed between the heat preservation pipe 2 and the conveying pipe 1, and a connecting heat preservation assembly 4 is installed between the valve 7 and the conveying pipe 1, the connecting heat preservation assembly 4 is symmetrical to the axis of the conveying pipe 1, and comprises two groups of inner cavity walls 41 and outer cavity walls 43, the two groups of inner cavity walls 41 are combined into a tubular shape, are sleeved outside the two heat preservation pipes 2, and form a closed connecting cavity 42 between the outer wall of the valve 7, the outer cavity walls 43 are sleeved outside the inner cavity walls 41 and are fixedly connected with the inner cavity walls 41, and a filling cavity 44 is formed between the inner cavity walls 41 and the outer cavity walls 43, and an injection port 45 for filling heat preservation materials is formed in the filling cavity 44.
[0023] The heat preservation cavity 3 and the connecting cavity 42 are used for reducing heat transfer between the liquid in the conveying pipe 1 and the outside, since heat dissipation at the connecting position is stronger, the heat preservation materials such as polystyrene foam are filled into the filling cavity 44 from the injection port 45, and the heat preservation effect of the connecting position between the valve 7 and the conveying pipe 1 is further enhanced, and the symmetrical splicing structure can facilitate installation and realize omnidirectional wrapping of the valve 7.
[0024] The two heat preservation pipes 2 are each provided with a support frame 6, and the two ends of the outer cavity walls 43 are respectively inserted into the support frames 6 to combine the connecting heat preservation assembly 4 into an integrated whole.
[0025] The outer walls of the two heat preservation pipes 2 are respectively sleeved with sealing rings 5, the sealing rings 5 abut against the inner cavity walls 41, the sealing rings 5 seal between the inner cavity walls 41 and the heat preservation pipes 2, and heat gas in the heat preservation cavity 3 and the connecting cavity 42 is prevented from overflowing between the inner cavity walls 41 and the heat preservation pipes 2.
[0026] The connecting heat preservation assembly 4 comprises a rotating sealing assembly 46, and the rotating sealing assembly 46 is tightly sealed with a handle of the valve 7.
[0027] Preferably, the inner cavity walls 41 and the outer cavity walls 43 enclose the handle, the top end of the inner cavity walls 41 is fixedly connected with the outer cavity walls 43, the outer cavity walls 43 are higher than the inner cavity walls 41, and an opening for accommodating the rotating sealing assembly 46 is formed between the top end of the inner cavity walls 41 and the outer cavity walls 43.
[0028] Preferably, the rotating sealing assembly 46 comprises two groups of sealing rings 461 which are tightly sealed after splicing, the inner walls of the sealing rings 461 tightly abut against the handle, the top end of each of the sealing rings 461 is provided with an accommodating groove 463 which faces the handle, the two accommodating grooves 463 are communicated, an elastic ring 462 is installed in the accommodating groove 463, and the elastic ring 462 is contracted towards the handle. The sealing ring 461 is clamped into the opening.
[0029] When installing, the sealing ring 461 is clamped into the opening, and then the inner cavity wall 41 and the outer cavity wall 43 on both sides are spliced into a whole, and then the elastic ring 462 is placed into the accommodating groove 463, so that the elastic ring 462 makes the sealing ring 461 always close to the handle, thereby avoiding that the handle is separated from the sealing ring 461 when rotating, and the hot gas in the connecting cavity 42 is overflowed.
[0030] Preferably, the elastic ring 462 is detachably connected at the head and tail, such as a spring connected at the head and tail, so as to facilitate installation.
[0031] It should be understood that the terms "upper", "lower", "front", "left", "top", "bottom", "inner", "outer" 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.
[0032] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0033] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0035] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A thermal insulation pipe for producing BOPP aluminized base film, comprising a transport pipe (1) and a valve (7), wherein the valve (7) is installed between two sets of transport pipes (1), characterized in that: The transport pipe (1) is covered with an insulation pipe (2), and an insulation cavity (3) is formed between the insulation pipe (2) and the transport pipe (1). A connecting insulation component (4) is installed between the valve (7) and the transport pipe (1). The connecting insulation component (4) includes an inner cavity wall (41) sleeved outside the insulation pipes (2) on both sides and an outer cavity wall (43) sleeved outside the inner cavity wall (41). A connecting cavity (42) is formed between the inner cavity wall (41) and the outer wall of the valve (7). The connecting cavity (42) is connected to the insulation cavity (3). A filling cavity (44) is formed between the inner cavity wall (41) and the outer cavity wall (43).
2. The insulated pipe for producing BOPP aluminized base film according to claim 1, characterized in that: The connecting insulation component (4) is a structure symmetrical about the transport pipe (1). The connecting cavities (42) on the front and rear sides are connected. Support frames (6) are installed on both sides of the insulation pipe (2). The two ends of the outer cavity wall (43) on both sides are inserted into the support frame (6) and merged into a closed connecting cavity (42).
3. The insulated pipe for producing BOPP aluminized base film according to claim 2, characterized in that: The connecting insulation component (4) includes a rotating sealing component (46), which is tightly sealed to the handle of the valve (7).
4. The thermal insulation pipe for producing BOPP aluminized base film according to claim 3, characterized in that: The rotating sealing assembly (46) includes two sets of sealing rings (461) spliced together. The inner wall of the sealing ring (461) is in close contact with the handle. The top of the sealing ring (461) has a receiving groove (463) with an opening facing the handle. The receiving grooves (463) on both sides are connected. An elastic ring (462) is installed in the receiving groove (463). The elastic ring (462) contracts towards the handle.
5. The thermal insulation pipe for producing BOPP aluminized base film according to claim 4, characterized in that: The elastic ring (462) is detachable at both ends.
6. The insulated pipe for producing BOPP aluminized base film according to claim 4, characterized in that: The bottom end of the sealing ring (461) is in close contact with the top end of the inner cavity wall (41).
7. The thermal insulation pipe for producing BOPP aluminized base film according to claim 1, characterized in that: An injection port (45) for filling insulation material is provided on the filling cavity (44).
8. The thermal insulation pipe for producing BOPP aluminized base film according to claim 1, characterized in that: Sealing rings (5) are fitted on the outer walls of the insulation pipes (2) at both ends of the inner cavity wall (41), and the sealing rings (5) seal the space between the inner cavity wall (41) and the insulation pipes (2).