Kettle type foaming device with built-in fan for pushing supercritical fluid to circularly flow

Abstract

The utility model discloses a kettle type foaming device with a built-in fan for pushing supercritical fluid to circularly flow, which relates to the technical field of high polymer supercritical fluid foaming, and adopts the technical scheme that the kettle type foaming device comprises a foaming kettle, a motor is fixedly arranged in the middle of one end of the foaming kettle, and fan blades are coaxially and fixedly arranged on a motor shaft of the motor; the motor and the fan blades are arranged in the foaming kettle; a sealing assembly is fixedly arranged in the middle of one end of the foaming kettle, and a cable of the motor penetrates through the sealing assembly. The reaction kettle has the beneficial effects that fluid in the kettle is pushed by the fan blades to quickly flow, so that the heat transfer effect is enhanced; the problem that foaming temperature rise is slow is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer supercritical fluid foaming, in particular to a kettle type foaming device with a built-in fan driving a supercritical fluid to circulate. Background Art

[0002] Foaming technology is a technology widely used in the manufacturing process to prepare foam materials with specific physical properties; foaming technology is widely used in various fields: in the construction and insulation industry, foaming materials are used for thermal insulation and sound absorption; in the automotive industry, foaming materials are used to reduce weight and provide cushioning protection; in the packaging industry, foaming materials are used to package and protect fragile items; in the electronics industry, foaming materials are used for thermal management and protection of electronic components.

[0003] Therefore, foaming technology has certain research prospects. According to the current foaming technology, there is mainly supercritical fluid foaming technology, which uses the physical properties of supercritical fluid to achieve more uniform gas dispersion and higher quality control.

[0004] Micro-particle foaming technology uses the reaction of micron-sized particles on the interface to achieve controllable foam pore structure and mechanical properties. Among them, supercritical fluid foaming technology has the defect of uneven heating of built-in materials, which will lead to uneven foaming properties of the final shape. Therefore, this field needs a new solution to improve the effect of solving the problem of uneven heating of supercritical fluid technology and improve the comprehensive performance of foaming. Utility Model Content

[0005] In view of the above technical problems, the utility model provides a kettle-type foaming device with a built-in fan to promote the circulation of supercritical fluid.

[0006] The technical solution is as follows: it comprises a foaming kettle, a motor is fixedly arranged at the middle of one end of the foaming kettle, a fan blade is coaxially fixedly arranged on the motor shaft of the motor, and the motor and the fan blade are both arranged inside the foaming kettle;

[0007] A sealing component is fixedly arranged at the middle of one end of the foaming kettle, and the cable of the motor passes through the sealing component.

[0008] Preferably, the sealing assembly comprises a T-shaped flange, and a circular plate-shaped flange end cover is detachably provided on the flange plate of the T-shaped flange;

[0009] A cylindrical neck is fixedly arranged in the middle of one side of the flange, a thread is arranged on the outer wall of the neck, a nut is threadedly connected to the thread, and the nut is located inside the foaming kettle;

[0010] A threading hole is provided in the middle of the T-shaped flange, and the cable of the motor passes through the threading hole;

[0011] One end of the threading hole close to the flange end cover is in a bell-mouth shape, and a conical sealing plug is arranged in the bell-mouth of the threading hole.

[0012] Preferably, a wire passing hole is provided in the middle of the conical sealing plug, and the diameter of the wire passing hole corresponds to the cable.

[0013] Preferably, the conical sealing plug is made of rubber.

[0014] Preferably, an annular upper gasket and a lower gasket are provided on the neck of the T-shaped flange, the upper gasket is located between the flange and the foaming kettle, and the lower gasket is located between the nut and the foaming kettle.

[0015] Preferably, the flange plate has a plurality of threaded holes circumferentially formed thereon, the flange end cover has a plurality of mounting holes circumferentially formed thereon, the mounting holes correspond to the threaded holes, and the flange end cover is threadedly connected to the threaded holes by fastening bolts penetrating the mounting holes.

[0016] Preferably, an annular limiting groove is provided on the plate body of the flange disc, and an annular limiting boss is fixedly provided on the plate body of the flange end cover, and the limiting boss corresponds to the limiting groove.

[0017] Preferably, the threading hole is filled with insulating glue.

[0018] The technical solution provided by the embodiment of the utility model has the following beneficial effects: 1. The fan blades promote the rapid flow of the fluid in the kettle, thereby enhancing the heat transfer effect and solving the problem of slow foaming temperature rise.

[0019] 2. Through the design and implementation of the sealing component, the wires can pass through the kettle body without gas escaping, solving the problem of power supply in the kettle cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0021] Figure 2 It is a cross-sectional view of the sealing assembly and the foaming kettle according to an embodiment of the utility model.

[0022] Figure 3 This is a cross-sectional view of the wire insulation varnish filling seal according to an embodiment of the utility model.

[0023] Figure 4 It is a cross-sectional view of a sealing assembly according to an embodiment of the utility model.

[0024] Figure 5 It is a schematic structural diagram of a T-shaped flange according to an embodiment of the utility model.

[0025] Figure 6It is a schematic structural diagram of a conical sealing plug according to an embodiment of the utility model.

[0026] Among them, the figure markings are: 1, foaming kettle; 2, fan blades; 3, motor; 4, sealing assembly; 5, cable; 401, T-flange; 402, flange end cover; 403, fastening bolts; 404, conical sealing plug; 405, insulating glue; 406, upper gasket; 407, lower gasket; 408, nut. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In the description of the invention of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention of the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.

[0031] Example 1

[0032] See also Figures 1 to 6The utility model provides a kettle-type foaming device with a built-in fan to promote the circulation of supercritical fluid, comprising a foaming kettle 1, a motor 3 is fixedly arranged in the middle of one end of the foaming kettle 1, a fan blade 2 is coaxially fixedly arranged on the motor shaft of the motor 3, and the motor 3 and the fan blade 2 are both arranged inside the foaming kettle 1;

[0033] A sealing component 4 is fixedly arranged at the middle of one end of the foaming kettle 1 , and a cable 5 of the motor 3 passes through the sealing component 4 .

[0034] The sealing assembly 4 includes a T-shaped flange 401, and a circular plate-shaped flange end cover 402 is detachably provided on the flange plate of the T-shaped flange 401;

[0035] A cylindrical neck is fixedly arranged in the middle of one side of the flange, a thread is arranged on the outer wall of the neck, a nut 408 is threadedly connected to the thread, and the nut 408 is located inside the foaming kettle 1;

[0036] A threading hole is provided in the middle of the T-shaped flange 401, and the cable 5 of the motor 3 passes through the threading hole;

[0037] One end of the threading hole close to the flange end cover 402 is in a bell-mouth shape;

[0038] A conical sealing plug 404 is arranged in the bell mouth of the threading hole.

[0039] A wire hole is provided in the middle of the conical sealing plug 404 , and the diameter of the wire hole corresponds to the cable 5 .

[0040] The conical sealing plug 404 is made of rubber.

[0041] The size of the conical sealing plug 404 is slightly larger than the size of the bell mouth. After the flange end cover 402 is covered, it is tightened with bolts 403. The conical sealing plug 404 is compressed into the bell mouth under pressure. The diameter of the wire hole of the conical sealing plug 404 will become smaller as the conical sealing plug 404 is compressed, and a sealing structure is formed by relying on the pressure on the surface of the cable 5.

[0042] An annular upper gasket 406 and a lower gasket 407 are arranged on the neck of the T-shaped flange 401 . The upper gasket 406 is located between the flange and the foaming kettle 1 , and the lower gasket 407 is located between the nut 408 and the foaming kettle 1 .

[0043] A plurality of threaded holes are formed on the circumference of the flange plate, and a plurality of mounting holes are formed on the circumference of the flange end cover 402. The mounting holes correspond to the threaded holes, and the flange end cover 402 is threadedly connected to the threaded holes by fastening bolts 403 penetrating the mounting holes.

[0044] An annular limiting groove is provided on the plate body of the flange, and an annular limiting boss is fixedly provided on the plate body of the flange end cover 402, and the limiting boss corresponds to the limiting groove.

[0045] The threading hole is filled with insulating glue 405. After the cable 5 passes through the threading hole, the threading hole is filled with insulating glue 405. After the insulating glue 405 is cured, the gap between the threading hole and the cable 5 is filled to make the threading hole airtight.

[0046] Figure 1 The positional relationship of each component is clearly shown, and the two sides of the fan blade 2 are the placement space area of ​​the motor 3 and the placement area of ​​the foam material respectively.

[0047] When the utility model is used, the cable 5 passes through the sealing component 4, connects the power supply and the motor 3, and the motor 3 drives the fan blade 2 to rotate, promotes the flow of the critical process in the foaming kettle 1, strengthens the convective heat transfer in the kettle, and realizes uniform and rapid heating of the foaming material.

[0048] During the use of the foaming kettle 1, the most important thing is to ensure that the gas cannot escape from the gap in the foaming kettle 1 along the cable 5. Through the sealing component 4, the implementation method of the sealing component is to open a hole in the kettle body 1, pass the T-shaped flange 401 through the hole, and then use the nut 408 to fasten the T-shaped flange 401 to the foaming kettle 1, and the cable 5 passes through the threading hole of the T-shaped flange 401, fill the threading hole with insulating glue 405, and then cure it at low temperature, and the threading hole of the T-shaped flange 401 is blocked.

[0049] In order to prevent the high pressure in the foaming kettle 1 from pushing out the solidified insulating glue 405, a conical sealing plug 404 is placed at the bell mouth of the threading hole, and the flange end cover 402 is covered and tightened with bolts 403. The conical sealing plug 404 is compressed into the bell mouth under pressure, and the diameter of the wire hole of the conical sealing plug 404 will become smaller as the conical sealing plug 404 is compressed. The interface friction force is used to form a second guarantee for the airtightness of the threading hole.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A kettle-type foaming device with a built-in fan to promote the circulation of supercritical fluid, characterized in that: It comprises a foaming kettle (1), wherein a motor (3) is fixedly arranged at the middle of one end of the foaming kettle (1), a fan blade (2) is coaxially fixedly arranged on the motor shaft of the motor (3), and the motor (3) and the fan blade (2) are both arranged inside the foaming kettle (1); A sealing component (4) is fixedly arranged in the middle of one end of the foaming kettle (1), and a cable (5) of the motor (3) passes through the sealing component (4).

2. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 1 is characterized in that: The sealing assembly (4) comprises a T-shaped flange (401), and a circular plate-shaped flange end cover (402) is detachably provided on the flange plate of the T-shaped flange (401); A cylindrical neck is fixedly arranged in the middle of one side of the flange, a thread is arranged on the outer wall of the neck, a nut (408) is threadedly connected to the thread, and the nut (408) is located inside the foaming kettle (1); A threading hole is provided in the middle of the T-shaped flange (401), and a cable (5) of the motor (3) passes through the threading hole; One end of the threading hole close to the flange end cover (402) is in a bell-mouth shape, and a conical sealing plug (404) is arranged in the bell-mouth of the threading hole.

3. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 2, characterized in that: A wire passing hole is provided in the middle of the conical sealing plug (404), and the diameter of the wire passing hole corresponds to the cable (5).

4. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 3 is characterized in that: The conical sealing plug (404) is made of rubber.

5. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 2, characterized in that: An annular upper gasket (406) and a lower gasket (407) are arranged on the neck of the T-shaped flange (401); the upper gasket (406) is located between the flange and the foaming kettle (1); and the lower gasket (407) is located between the nut (408) and the foaming kettle (1).

6. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 2, characterized in that: A plurality of threaded holes are formed on the circumferential surface of the flange plate, and a plurality of mounting holes are formed on the circumferential surface of the flange end cover (402). The mounting holes correspond to the threaded holes, and the flange end cover (402) is threadedly connected to the threaded holes via fastening bolts (403) that penetrate through the mounting holes.

7. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 2, characterized in that: An annular limiting groove is provided on the plate body of the flange disc, and an annular limiting boss is fixedly arranged on the plate body of the flange end cover (402), wherein the limiting boss corresponds to the limiting groove.

8. The kettle-type foaming device with a built-in fan driving the circulation of supercritical fluid according to claim 2, characterized in that: The threading hole is filled with insulating glue (405).

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