A melt pipe insulation device

Abstract

The utility model provides a kind of melt pipeline heat preservation device, it is related to melt pipeline technical field, it is applicable to melt pipeline, melt pipeline heat preservation device includes first heat preservation cover, first heat preservation cover is set in melt pipeline outer, electric heater is arranged between melt pipeline and first heat preservation cover, electric heater is wound in the outer surface of melt pipeline, melt pipeline connects temperature sensor, temperature sensor sets temperature probe seat, temperature probe seat is equipped with second heat preservation cover. By covering first heat preservation cover in melt pipeline, the heat preservation and protection effect to melt pipeline are realized, the heat that melt pipeline is conducted by electric heater is not easy to lose due to air flow, melt pipeline can also be heated more evenly, effectively improve heating effect, reduce the temperature fluctuation of melt pipeline and the power consumption of electric heater, increase second heat preservation cover on temperature probe seat, can provide a good uniform temperature detection environment for temperature probe inside temperature probe seat.

Description

Technical Field

[0001] This utility model relates to the field of melt pipeline technology, and more specifically, to a melt pipeline insulation device. Background Technology

[0002] A melt channel is a continuous passage in an extruder (such as a plastic extruder or a rubber extruder) that begins at the screw head, passes through the die head, and finally passes through the die to form a specific shape. Simply put, it's the "highway" through which molten plastic is extruded under high pressure and finally solidified. The entire melt channel is equipped with a precise heating and temperature control system (usually using electric heating coils and temperature sensors) to ensure a uniform material temperature throughout the flow path, preventing uneven flow rates and uneven internal stress in the product caused by uneven temperature.

[0003] Melt pipes are high-temperature heating devices, currently typically used either in open environments or within cleanrooms. However, airflow in the external environment can affect the temperature sensors' detection of the melt pipe's temperature, as well as the heating effect of the electric heater. This leads to uneven temperature distribution and fluctuations in the melt pipe. Therefore, airflow in the environment can easily affect the temperature control of the melt pipe and also increase the energy consumption of the electric heater. Utility Model Content

[0004] The present invention aims to solve the problems of poor temperature control and high heating energy consumption in existing melt pipelines.

[0005] To solve the above problems, this utility model provides a molten pipe insulation device, which is applicable to molten pipes. The molten pipe insulation device includes a first insulation sleeve, which is sleeved on the outside of the molten pipe. An electric heater is provided between the molten pipe and the first insulation sleeve, and the electric heater is wound around the outer surface of the molten pipe. The melt pipe is connected to a temperature sensor, the temperature sensor is equipped with a temperature probe holder, and the temperature probe holder is fitted with a second insulation sleeve.

[0006] The molten pipe insulation device provided by this utility model has the following beneficial effects compared with the prior art: This molten pipe insulation device achieves insulation and protection for the molten pipe by covering it with a first insulation sleeve. This prevents the heat conducted by the electric heater to the molten pipe from being lost due to air flow, and also makes the heating of the molten pipe more uniform, effectively improving the heating effect and reducing the temperature fluctuation of the molten pipe and the power consumption of the electric heater.

[0007] Adding a second insulation sleeve to the temperature probe holder can provide a good and uniform temperature detection environment for the temperature probe inside the temperature probe holder, making it less susceptible to the influence of external wind fields. Combined with lower temperature fluctuations in the melt pipeline, this effectively improves the accuracy of temperature detection, making subsequent temperature control of the melt pipeline more stable and further improving the temperature control effect.

[0008] Furthermore, the first insulation jacket is provided with a protective layer, a filling layer and a heat insulation layer from the outside to the inside, and adjacent layers are bonded together.

[0009] Furthermore, the protective layer is made of alkali-free silicone fiberglass cloth.

[0010] Furthermore, the filling layer is made of one or more of the following: glass fiber needle-punched felt, ceramic fiber needle-punched felt, silica felt, and nano-aerogel insulation felt.

[0011] Furthermore, the heat insulation layer is one or more of the following: silicone cloth, fiberglass cloth, silica cloth, PTFE cloth, and ceramic cloth.

[0012] Furthermore, the second insulation sleeve is provided with a flame-retardant layer and a fiber layer from the outside to the inside, and the flame-retardant layer and the fiber layer are bonded together.

[0013] Furthermore, the flame-retardant layer is made of silicone tubing.

[0014] Furthermore, the fiber layer is made of alkali-free glass fiber.

[0015] Furthermore, flanges are provided at both ends of the melt pipes, and several melt pipes are connected in sequence through the flanges.

[0016] Furthermore, a temperature probe is installed inside the temperature probe holder, and the temperature probe is equipped with a connecting wire. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the melt pipeline insulation device according to an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a cross-sectional view of the first insulation sleeve; Figure 4 This is a cross-sectional view of the second insulation sleeve.

[0018] Explanation of reference numerals in the attached figures: 1. Melt pipe; 2. First insulation jacket; 21. Protective layer; 22. Filling layer; 23. Insulation layer; 3. Temperature probe holder; 4. Connecting wire; 5. Second insulation jacket; 51. Flame retardant layer; 52. Fiber layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0024] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0025] See Figures 1-2 This utility model provides a molten pipe insulation device applicable to molten pipe 1. The molten pipe insulation device includes a first insulation sleeve 2, which is sleeved on the outside of the molten pipe 1. An electric heater is provided between the molten pipe 1 and the first insulation sleeve 2, and the electric heater is wound around the outer surface of the molten pipe 1.

[0026] The melt pipe 1 is connected to a temperature sensor, the temperature sensor is equipped with a temperature probe seat 3, and the temperature probe seat 3 is fitted with a second insulation sleeve 5.

[0027] In this embodiment, by covering the melt pipe 1 with the first insulation sleeve 2, the melt pipe 1 is insulated and protected, so that the heat conducted by the electric heater to the melt pipe 1 is not easily lost due to air flow, and the heating of the melt pipe 1 is more uniform, which effectively improves the heating effect, reduces the temperature fluctuation of the melt pipe 1 and the power consumption of the electric heater.

[0028] Adding a second insulation sleeve 5 to the temperature probe holder 3 can provide a good and uniform temperature detection environment for the temperature probe inside the temperature probe holder 3, which is not easily affected by the external wind field. Combined with the lower temperature fluctuation of the melt pipeline 1, it can effectively improve the accuracy of temperature detection, make the subsequent temperature control of the melt pipeline 1 more stable, and further improve the temperature control effect.

[0029] Flanges are installed at both ends of the melt pipe 1. Several melt pipes 1 are connected in sequence through the flanges to form a flow channel. The input end of the flow channel is connected to the output end of the extruder. Molten plastic is extruded into the flow channel through the extruder.

[0030] Electric heaters include, but are not limited to, ceramic heating coils and mica heating coils.

[0031] A temperature probe is also installed inside the temperature probe holder 3. The temperature probe is connected to a connecting wire 4. The temperature probe is powered through the connecting wire 4, and temperature detection can be performed after power is supplied.

[0032] Optionally, see Figure 3 The first insulation sleeve 2 is provided with a protective layer 21, a filling layer 22 and a heat insulation layer 23 from the outside to the inside, and the adjacent two layers are bonded together.

[0033] In this embodiment, the protective layer 21, the filling layer 22, and the heat insulation layer 23 are bonded together, making the first insulation sleeve 2 a one-piece structure, which makes it easy for operators to put it on the melt pipe 1. Furthermore, the first insulation sleeve 2 is easy to assemble and disassemble and can be reused.

[0034] Optionally, the protective layer 21 is made of alkali-free silicone fiberglass cloth. The filling layer 22 is made of one or more of fiberglass needle-punched felt, ceramic fiber needle-punched felt, silicone felt, and nano-aerogel insulation felt. The insulation layer 23 is made of one or more of silicone cloth, fiberglass cloth, silicone cloth, PTFE cloth, and ceramic cloth.

[0035] In this embodiment, the protective layer 21 uses alkali-free silicone fiberglass cloth, a composite material resistant to high temperatures of 280℃~500℃. It is a Class A fire-retardant, fire-resistant, oil-resistant, wear-resistant, acid and alkali-resistant, and environmentally friendly material. The thickness of the filling layer 22 can be selected based on actual needs. Depending on the equipment temperature, the choice of material for the insulation layer 23 is also wider. The cooperation of the protective layer 21, filling layer 22, and insulation layer 23 gives the first insulation sleeve 2 the characteristics of energy saving, consumption reduction, fire resistance, and flame retardancy.

[0036] Optionally, see Figure 4 The second insulation sleeve 5 is provided with a flame-retardant layer 51 and a fiber layer 52 from the outside to the inside, and the flame-retardant layer 51 and the fiber layer 52 are bonded together.

[0037] In this embodiment, the flame-retardant layer 51 and the fiber layer 52 are bonded together, making the second insulation sleeve 5 a one-piece structure, which facilitates the operator to put it on the temperature probe holder 3. Furthermore, the second insulation sleeve 5 is easy to assemble and disassemble and is reusable.

[0038] Optionally, the flame-retardant layer 51 is made of silicone tubing. The fiber layer 52 is made of alkali-free glass fiber.

[0039] In this embodiment, the flame-retardant layer 51 and the fiber layer 52 work together to give the second insulation sleeve 5 the characteristics of fireproof flame retardancy, high temperature protection, and thick shock resistance, and it can work continuously in the temperature range of -60℃ to 550℃.

[0040] The working principle of this invention is as follows: Molten plastic is extruded into the melt pipe 1 through an extruder. A temperature probe inside the temperature probe holder 3 detects the temperature of the melt pipe 1. The first insulation sleeve 2 insulates and protects the melt pipe 1, preventing heat loss due to airflow from the electric heater and ensuring more uniform heating, thus improving heating efficiency and reducing temperature fluctuations and energy consumption of the electric heater. The second insulation sleeve 5 provides a good and uniform temperature detection environment for the temperature probe inside the temperature probe holder 3, making it less susceptible to external wind effects. Combined with lower temperature fluctuations in the melt pipe 1, this effectively improves the accuracy of temperature detection, resulting in more stable temperature control of the melt pipe 1 and further enhancing temperature control performance.

[0041] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A heat preservation device for a molten pipe, suitable for a molten pipe (1), characterized in that, The heat preservation device for the melt pipe includes a first heat preservation sleeve (2), which is sleeved on the outside of the melt pipe (1). An electric heater is provided between the melt pipe (1) and the first heat preservation sleeve (2), and the electric heater is wrapped around the outer surface of the melt pipe (1). The melt pipe (1) is connected to a temperature sensor, the temperature sensor is equipped with a temperature probe seat (3), and the temperature probe seat (3) is fitted with a second insulation sleeve (5).

2. The molten pipe insulation device according to claim 1, characterized in that, The first insulation sleeve (2) is provided with a protective layer (21), a filling layer (22) and a heat insulation layer (23) from the outside to the inside, and the adjacent two layers are bonded together.

3. The heat preservation device for melt pipelines according to claim 2, characterized in that, The protective layer (21) is made of alkali-free silicone fiberglass cloth.

4. The molten pipe insulation device according to claim 2, characterized in that, The filling layer (22) is one or more of the following: glass fiber needled felt, ceramic fiber needled felt, silica felt, and nano aerogel insulation felt.

5. The heat preservation device for melt pipelines according to claim 2, characterized in that, The heat insulation layer (23) is one or more of silicone cloth, fiberglass cloth, silica cloth, PTFE cloth, and ceramic cloth.

6. The heat preservation device for melt pipeline according to claim 1, characterized in that, The second insulation sleeve (5) is provided with a flame retardant layer (51) and a fiber layer (52) from the outside to the inside, and the flame retardant layer (51) and the fiber layer (52) are bonded together.

7. The heat preservation device for melt pipeline according to claim 6, characterized in that, The flame-retardant layer (51) is made of silicone tubing.

8. The heat preservation device for melt pipeline according to claim 6, characterized in that, The fiber layer (52) is made of alkali-free glass fiber.

9. The heat preservation device for melt pipeline according to claim 1, characterized in that, Flanges are provided at both ends of the melt pipe (1), and several melt pipes (1) are connected in sequence through the flanges.

10. The heat preservation device for melt pipeline according to claim 1, characterized in that, A temperature probe is installed inside the temperature probe holder (3), and the temperature probe is equipped with a connecting wire (4).

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