CN212564939U - Preparation device of thermal insulation pipe - Google Patents
Preparation device of thermal insulation pipe Download PDFInfo
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- CN212564939U CN212564939U CN202020204377.XU CN202020204377U CN212564939U CN 212564939 U CN212564939 U CN 212564939U CN 202020204377 U CN202020204377 U CN 202020204377U CN 212564939 U CN212564939 U CN 212564939U
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Abstract
The application discloses preparation facilities of insulating tube belongs to insulating tube preparation technical field. The heat-insulating pipe comprises an inner pipe (1), an outer pipe (2) and a heat-insulating material, wherein the inner pipe (1) is coaxial with the outer pipe (2), and the inner diameter of the outer pipe (2) is larger than the outer diameter of the inner pipe (1), so that an annular gap (3) is formed between the inner pipe (1) and the outer pipe (2); the heat insulation material is uniformly filled in the annular gap (3), so that the density of the heat insulation material in different radial cross sections of the heat insulation pipe is uniform. The heat preservation pipe can be manufactured by applying the manufacturing device. The heat preservation pipe prepared by the preparation device can ensure that the density of the heat preservation material in different radial cross sections of the heat preservation pipe is uniform, thereby enhancing the heat preservation effect of the whole heat preservation pipe.
Description
Technical Field
The invention relates to the technical field of preparation of heat-insulating pipes, in particular to a preparation device of a heat-insulating pipe.
Background
In the prior art, the heat preservation pipe is manufactured in a polyurethane foaming mode.
Referring to fig. 1, when filling the annular gap 3 between the inner pipe 1 and the outer pipe 2 with the thermal insulation material, it is usually necessary to open an injection hole 4 at the axial center of the outer pipe 2, through which the fluid thermal insulation material can be filled into the annular gap 3 between the inner pipe 1 and the outer pipe 2, and along with the increase of the injection amount of the fluid thermal insulation material, the fluid thermal insulation material can fill the annular gap along the axial direction and the circumferential direction, and finally, the fluid thermal insulation material is solidified to form the thermal insulation layer in the annular gap. However, since the heat insulating pipe is always in a horizontal state during the process of injecting the fluid heat insulating material into the annular gap, the heat insulating material is likely to be unevenly distributed in the axial direction of the annular gap, and specifically, the closer the distance from the radial cross section of the injection hole 4, the higher the density of the heat insulating layer. Finally, the heat preservation effect is reduced due to the fact that the density of the heat preservation material is reduced at the position, far away from the injection hole 4, of the heat preservation pipe in the using process easily.
In addition, the outer pipe 2 of the thermal insulation pipe obtained by filling the annular gap 3 between the inner pipe 1 and the outer pipe 2 with the thermal insulation material in the mode of the filling hole 4 has a wound surface, that is, the filling hole 4 existing on the outer pipe 2 easily causes leakage of the thermal insulation material which is fluid in the preparation process of the thermal insulation pipe and finally influences the thermal insulation effect of the prepared thermal insulation pipe.
Disclosure of Invention
In view of this, the invention provides a device for preparing a heat preservation pipe, and the heat preservation pipe prepared by the device and the method can make the density of heat preservation materials in different radial cross sections of the heat preservation pipe uniform, so as to enhance the heat preservation effect of the whole heat preservation pipe.
In order to achieve the first object, the technical scheme of the heat preservation pipe provided by the invention is as follows:
the heat preservation pipe provided by the invention comprises an inner pipe (1), an outer pipe (2) and a heat preservation material,
the inner pipe (1) is coaxial with the outer pipe (2),
the inner diameter of the outer pipe (2) is larger than the outer diameter of the inner pipe (1) so that an annular gap (3) is formed between the inner pipe (1) and the outer pipe (2);
the heat insulation material is uniformly filled in the annular gap (3), so that the density of the heat insulation material in different radial cross sections of the heat insulation pipe is uniform.
The heat preservation pipe provided by the invention can be further realized by adopting the following technical measures.
Preferably, the heat insulating material is formed by solidifying the fluid heat insulating material.
In order to achieve the second object, the technical scheme of the device for preparing the heat preservation pipe is as follows:
the device for preparing the heat preservation pipe comprises a core adjusting mechanism and a tilting mechanism,
the core adjusting mechanism is used for centering the inner pipe (1) and the outer pipe (2) so that the inner pipe (1) and the outer pipe (2) are coaxial;
the tilting mechanism is used for tilting the heat preservation pipe to be filled, so that the heat preservation pipe to be filled forms a tilting state with one end low and the other end high along the axial direction;
and/or the presence of a gas in the gas,
the tilting mechanism is used for tilting the heat insulation pipe filled with the fluid heat insulation material, so that the heat insulation pipe filled with the fluid heat insulation material is restored to a horizontal state.
The preparation device of the heat preservation pipe provided by the invention can be further realized by adopting the following technical measures.
Preferably, the core adjusting mechanism comprises a gap adjusting mechanism,
the clearance adjusting mechanism comprises an adjusting ring (18) and a linear traction mechanism,
the inner diameter of the adjusting ring (18) is equal to the outer diameter of the inner pipe (1), and the outer diameter of the adjusting ring (18) is equal to the inner diameter of the outer pipe (2);
the free end of the linear traction mechanism is fixedly connected with the adjusting ring;
when the filling device is applied, the adjusting ring (18) is aligned with the inner pipe (1), and a moving pair is formed among the adjusting ring (18), the outer wall of the inner pipe (1) and the inner wall of the outer pipe (2), so that the adjusting ring (18) can linearly reciprocate along the axial direction of the insulating pipe to be filled under the action of the linear traction mechanism.
Preferably, the linear traction mechanism comprises a linear reciprocating power prime mover and a connecting assembly,
one end of the connecting component is fixedly connected with an output shaft of the linear reciprocating power driving component,
the other end of the connecting component is fixedly connected with the adjusting ring (18).
Preferably, the connection assembly comprises a connection bracket (20) and a plurality of connection rods (19),
one end of each connecting rod (19) is fixedly connected with one side of the connecting bracket (20),
the other ends of the connecting rods (19) are fixedly connected with the adjusting ring (18),
the other side of the connecting bracket (20) is fixedly connected with an output shaft of the linear reciprocating power driving element.
Preferably, the connection points of the connecting rods (19) and the adjusting ring (18) are uniformly distributed along the circumferential direction of the adjusting ring (18).
Preferably, the device for preparing the heat preservation pipe also comprises an outer pipe limiting mechanism,
the outer tube limiting mechanism comprises a supporting frame (26) and a plurality of limiting assemblies (27),
an accommodating space (28) along the axial direction of the heat preservation pipe is arranged in the center of the support frame (26),
the plurality of limiting assemblies (27) are arranged on the supporting frame (26) along the radial direction of the heat preservation pipe,
during application, the heat preservation pipe penetrates into the accommodating space (28), the limiting assemblies (27) radially abut against the side wall of the outer pipe (2), and coaxiality between the inner pipe (1) and the outer pipe (2) can be adjusted by adjusting allowance of the limiting assemblies (27) in the accommodating space (28).
Preferably, the support frame (26) comprises a lower support frame (6), an upper support frame (5), a connecting arm (12), a telescopic mechanism (29), a hinge lug (31) and a fixing piece (30),
the upper support frame (5) and the lower support frame (6) are hinged to a first hinge point (11);
one end of the connecting arm (12) is fixedly connected to the upper support frame (5), and the other end of the connecting arm (12) is hinged to the second hinge point (13) with the free end (15) of the telescopic mechanism (29);
one end of the hinge lug (31) is fixedly connected with the fixing piece (30),
the other end of the hinge lug (31) is hinged with a fixed end (16) of the telescopic mechanism (29) through a third hinge joint (17);
when the telescopic mechanism (29) is shortened to the limit position, the opening distance between the upper support frame (5) and the lower support frame (6) is larger than or equal to the outer diameter of the outer pipe (2),
when the upper support frame (5) and the lower support frame (6) are completely closed, the accommodating space (28) is formed between the upper support frame (5) and the lower support frame (6), and at the moment, the telescopic mechanism (29) reaches the extension limit or has extension allowance.
Preferably, the limiting assembly (27) comprises an abutting head (7), an adjusting rod (8) and an adjusting cylinder (9),
one side of the propping head (7) is fixedly connected with the adjusting rod (8),
the other side of the abutting head (7) abuts against the outer pipe (2), so that the outer pipe (2) is limited by the abutting heads (7) and is positioned in a limiting space (32) enclosed by the abutting surfaces (10) of the abutting heads (7);
the adjusting cylinder (9) is fixedly connected to the supporting frame (26);
the adjusting rod (8) is matched with the adjusting cylinder (9), so that the adjusting rod (8) is guided in the radial direction of the adjusting cylinder (9) to adjust the allowance of the adjusting rod (8) in the accommodating space (28).
Preferably, the adjusting rod (8) and the adjusting cylinder (9) are matched in a mode selected from any one of threaded fit and snap fit.
Preferably, the preparation device of the heat preservation pipe also comprises a limiting bracket (35),
the limiting support (35) is connected to the support (20), and the radial length of the limiting support (35) is larger than the diameter of the inner pipe (1), so that when the inner pipe (1) moves towards the support (20), the limiting support (35) can stop the inner pipe (1) from moving continuously at a set position.
Preferably, the limiting bracket (35) comprises a radial limiting rod (33) and a plurality of axial limiting rods (34),
the length of the radial limiting rod (33) is larger than the diameter of the inner pipe (1),
the radial limiting rods (33) are connected to the bracket (20) through the plurality of axial limiting rods (34),
the limiting length of the plurality of axial limiting rods (34) between the radial limiting rods (33) and the support (20) is adjustable.
Preferably, the tilting mechanism comprises a support shaft (21),
the support shaft (21) radially set up in the bottom of outer tube (2), the insulating tube can use support shaft (21) verts as the fulcrum, makes it forms the low and high tilt state of other end of one end along the axial to wait to fill the insulating tube, and/or, makes the insulating tube who fills fluid heat preservation material reply and be the horizontality.
Preferably, the tilting mechanism comprises a first pair of lifting mechanisms (22) and a second pair of lifting mechanisms (23),
the free ends of the first pair of lifting mechanisms (22) are fixedly connected to the first radial section of the heat preservation pipe,
the free ends of the second pair of lifting mechanisms (23) are fixedly connected to the second radial section of the heat-insulating pipe;
extending the free ends of the first pair of lifting mechanisms (22) by a first length, and extending the free ends of the second pair of lifting mechanisms (23) by a second length, so that after extension, the vertex height of the first pair of telescopic mechanisms (22) is h1, and the vertex height of the second pair of lifting mechanisms (23) is h 2;
wherein the content of the first and second substances,
when h1 ≠ h2, the tilting mechanism enables the thermal insulation pipe to be filled to form an inclined state with one end low and the other end high along the axial direction under the support of the first pair of lifting mechanisms (22) and the second pair of lifting mechanisms (23);
when h1 is h2, the tilting mechanism enables the thermal insulation pipe filled with fluid thermal insulation material to axially return to a horizontal state under the support of the first pair of lifting mechanisms (22) and the second pair of lifting mechanisms (23).
Preferably, said tilting means comprise first hoisting means (24) and second hoisting means (25),
the free end of the first hoisting mechanism (24) is fixedly connected to the first radial section of the heat preservation pipe,
the free end of the second hoisting mechanism (25) is fixedly connected to the second radial section of the heat-insulating pipe;
extending the free end of said first sling means (24) a third length and the free end of said second sling means (25) a fourth length such that after extension, the suspension height of said first sling means (24) is h3 and the suspension height of said second sling means (25) is h 4;
wherein the content of the first and second substances,
when h3 is not equal to h4, the tilting mechanism enables the thermal insulation pipe to be filled to be in an inclined state with one end low and the other end high along the axial direction under the suspension of the first hoisting mechanism (24) and the second hoisting mechanism (25);
when h3 is h4, the tilting mechanism enables the thermal insulation pipe filled with fluid thermal insulation materials to axially return to a horizontal state under the suspension of the first hoisting mechanism (24) and the second hoisting mechanism (25).
The heat-insulating pipe prepared by applying the preparation device and the preparation method of the heat-insulating pipe provided by the invention has the following advantages: firstly, the outer tube 2 of the insulating tube that makes is not invasive, and outer tube 2 does not exist and is fluid heat preservation material filling hole 4 promptly, consequently, can avoid being the insulating tube that fluid heat preservation material leaked in the preparation process because the filling hole 4 that exists on outer tube 2 caused to improve the heat preservation effect of the insulating tube that makes. Secondly, because the process of preparing the heat preservation pipe is not to inject the fluid newspaper material into the annular gap 3 between the inner pipe 1 and the outer pipe 2 from the injection hole 4 arranged at the axial center of the outer pipe 2, but after the centering between the inner pipe 1 and the outer pipe 2 is completed through a core adjusting mechanism, the heat preservation pipe to be filled forms an inclined state with one end low and the other end high along the axial direction by means of a tilting mechanism, in this case, the lower end of the annular gap 3 of the heat preservation pipe is filled through a temporary plugging belt, and the fluid heat preservation material is naturally filled into the annular gap between the inner pipe 1 and the outer pipe 2 by utilizing the self gravity of the fluid heat preservation material, so that the heat preservation pipe filled with the fluid heat preservation material is obtained; then, the heat preservation pipe filled with the fluid heat preservation material is returned to be in a horizontal state again by the aid of the tilting mechanism, and at the moment, the fluid heat preservation material naturally flows in the annular gap 3 between the inner pipe 1 and the outer pipe 2 again by the aid of self gravity; and finally, foaming and/or solidifying the fluid heat-insulating material in the annular gap 3 between the inner pipe 1 and the outer pipe 2 to obtain the heat-insulating pipe provided by the invention. In this case, the fluid thermal insulation material can be uniformly distributed in the annular gap 3 between the inner pipe 1 and the outer pipe 2 along the axial direction, and the problem that the thermal insulation effect of the manufactured thermal insulation pipe is reduced due to different densities at different radial sections is solved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural view of a prior art insulating tube;
FIG. 2 is a schematic structural view of an insulating tube according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a bracket applied to a core adjusting mechanism related to a thermal insulation pipe manufacturing apparatus provided in an embodiment of the present invention (where an upper bracket and a lower bracket are in an open state);
fig. 4 is a schematic structural diagram of a bracket applied to a core adjusting mechanism related to a thermal insulation pipe manufacturing apparatus provided in an embodiment of the present invention (where an upper bracket and a lower bracket are in a closed state);
FIG. 5 is a schematic structural diagram of a gap adjustment mechanism applied to a core adjustment mechanism of the thermal insulation pipe preparation apparatus according to the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a gap adjustment mechanism applied to another core adjustment mechanism related to the thermal insulation pipe preparation apparatus provided in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a heat preservation pipe to be filled in an inclined state by using a tilting mechanism related to the heat preservation pipe preparation device provided by the embodiment of the invention;
fig. 8 is a schematic structural diagram of a heat-insulating pipe to be filled in an inclined state by using a fulcrum type tilting mechanism related to the heat-insulating pipe preparation device provided by the embodiment of the invention;
fig. 9 is a schematic structural diagram of a holding tube to be filled in an inclined state by using a supporting tilting mechanism related to the holding tube preparation device provided by the embodiment of the present invention;
fig. 10 is a schematic structural diagram of a heat-insulating pipe to be filled in an inclined state by using a suspension tilting mechanism of the heat-insulating pipe manufacturing apparatus according to the embodiment of the present invention;
fig. 11 is a flowchart illustrating steps of a method for manufacturing an insulating tube according to an embodiment of the present invention.
Detailed Description
In view of this, the invention provides a device for preparing a heat preservation pipe, and the heat preservation pipe prepared by the device and the method can make the density of heat preservation materials in different radial cross sections of the heat preservation pipe uniform, so as to enhance the heat preservation effect of the whole heat preservation pipe.
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the device for manufacturing an insulating tube according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Examples of insulating pipes
Example one
Referring to fig. 2, the thermal insulation pipe provided by the first embodiment of the present invention includes an inner pipe 1, an outer pipe 2, and a thermal insulation material. The inner tube 1 is coaxial with the outer tube 2. The outer tube 2 has an inner diameter larger than the outer diameter of the inner tube 1 so that an annular gap 3 is formed between the inner tube 1 and the outer tube 2. The heat insulation material is uniformly filled in the annular gap 3, so that the density of the heat insulation material in different radial cross sections of the heat insulation pipe is uniform.
The heat-insulating pipe prepared by applying the preparation device and the preparation method of the heat-insulating pipe provided by the invention has the following advantages: firstly, the outer tube 2 of the insulating tube that makes is not invasive, and outer tube 2 does not exist and is fluid heat preservation material filling hole 4 promptly, consequently, can avoid being the insulating tube that fluid heat preservation material leaked in the preparation process because the filling hole 4 that exists on outer tube 2 caused to improve the heat preservation effect of the insulating tube that makes. Secondly, because the process of preparing the heat preservation pipe is not to inject the fluid newspaper material into the annular gap 3 between the inner pipe 1 and the outer pipe 2 from the injection hole 4 arranged at the axial center of the outer pipe 2, but after the centering between the inner pipe 1 and the outer pipe 2 is completed through a core adjusting mechanism, the heat preservation pipe to be filled forms an inclined state with one end low and the other end high along the axial direction by means of a tilting mechanism, in this case, the lower end of the annular gap 3 of the heat preservation pipe is filled through a temporary plugging belt, and the fluid heat preservation material is naturally filled into the annular gap between the inner pipe 1 and the outer pipe 2 by utilizing the self gravity of the fluid heat preservation material, so that the heat preservation pipe filled with the fluid heat preservation material is obtained; then, the heat preservation pipe filled with the fluid heat preservation material is returned to be in a horizontal state again by the aid of the tilting mechanism, and at the moment, the fluid heat preservation material naturally flows in the annular gap 3 between the inner pipe 1 and the outer pipe 2 again by the aid of self gravity; and finally, foaming and/or solidifying the fluid heat-insulating material in the annular gap 3 between the inner pipe 1 and the outer pipe 2 to obtain the heat-insulating pipe provided by the invention. In this case, the fluid thermal insulation material can be uniformly distributed in the annular gap 3 between the inner pipe 1 and the outer pipe 2 along the axial direction, and the problem that the thermal insulation effect of the manufactured thermal insulation pipe is reduced due to different densities at different radial sections is solved.
Wherein, the heat preservation material is formed after the fluid heat preservation material is solidified. In this embodiment, the selected fluid thermal insulation material is polyurethane, and in addition, the fluid thermal insulation material may also be selected from other thermal insulation materials which are in a fluid state under a set pressure and a set storage condition and are foamed, solidified or undergo a set chemical reaction and then are in a solid state, as long as the purpose can be achieved.
Example of apparatus for producing thermal insulating pipe
Example two
Referring to fig. 3 to 5, a second embodiment of the present invention provides a device for manufacturing a thermal insulation pipe, including a core adjusting mechanism and a tilting mechanism. The core-adjusting mechanism is used to center the inner tube 1 and the outer tube 2 so that the inner tube 1 and the outer tube 2 are coaxial. Referring to fig. 6, the tilting mechanism is used for tilting the thermal insulation pipe to be filled, so that the thermal insulation pipe to be filled forms an inclined state with one end being low and the other end being high along the axial direction; and/or, the tilting mechanism is used for tilting the heat preservation pipe filled with the fluid heat preservation material, so that the heat preservation pipe filled with the fluid heat preservation material is restored to a horizontal state.
The heat-insulating pipe prepared by applying the preparation device and the preparation method of the heat-insulating pipe provided by the invention has the following advantages: firstly, the outer tube 2 of the insulating tube that makes is not invasive, and outer tube 2 does not exist and is fluid heat preservation material filling hole 4 promptly, consequently, can avoid being the insulating tube that fluid heat preservation material leaked in the preparation process because the filling hole 4 that exists on outer tube 2 caused to improve the heat preservation effect of the insulating tube that makes. Secondly, because the process of preparing the heat preservation pipe is not to inject the fluid newspaper material into the annular gap 3 between the inner pipe 1 and the outer pipe 2 from the injection hole 4 arranged at the axial center of the outer pipe 2, but after the centering between the inner pipe 1 and the outer pipe 2 is completed through a core adjusting mechanism, the heat preservation pipe to be filled forms an inclined state with one end low and the other end high along the axial direction by means of a tilting mechanism, in this case, the lower end of the annular gap 3 of the heat preservation pipe is filled through a temporary plugging belt, and the fluid heat preservation material is naturally filled into the annular gap between the inner pipe 1 and the outer pipe 2 by utilizing the self gravity of the fluid heat preservation material, so that the heat preservation pipe filled with the fluid heat preservation material is obtained; then, the heat preservation pipe filled with the fluid heat preservation material is returned to be in a horizontal state again by the aid of the tilting mechanism, and at the moment, the fluid heat preservation material naturally flows in the annular gap 3 between the inner pipe 1 and the outer pipe 2 again by the aid of self gravity; and finally, foaming and/or solidifying the fluid heat-insulating material in the annular gap 3 between the inner pipe 1 and the outer pipe 2 to obtain the heat-insulating pipe provided by the invention. In this case, the fluid thermal insulation material can be uniformly distributed in the annular gap 3 between the inner pipe 1 and the outer pipe 2 along the axial direction, and the problem that the thermal insulation effect of the manufactured thermal insulation pipe is reduced due to different densities at different radial sections is solved.
Wherein, the core adjusting mechanism comprises a clearance adjusting mechanism. The gap adjustment mechanism includes an adjustment ring 18 and a linear traction mechanism. The inner diameter of the adjusting ring 18 is equal to the outer diameter of the inner tube 1 and the outer diameter of the adjusting ring 18 is equal to the inner diameter of the outer tube 2. The free end of the linear traction mechanism is fixedly connected to the adjusting ring. When the filling device is used, the adjusting ring 18 is aligned with the inner pipe 1, and a moving pair is formed between the adjusting ring 18 and the outer wall of the inner pipe 1 and between the adjusting ring 18 and the inner wall of the outer pipe 2, so that the adjusting ring 18 can linearly reciprocate along the axial direction of the insulating pipe to be filled under the action of a linear traction mechanism. In this case, since the difference between the outer diameter and the inner diameter of the adjustment ring 18 itself is constant, when the annular gap 3 itself between the inner tube 1 and the outer tube 2 is constant, the centering between the inner tube 1 and the outer tube 2, and thus the coaxiality between the inner tube 1 and the outer tube 2 can be ensured.
The linear traction mechanism comprises a linear reciprocating power driving element and a connecting assembly. One end of the connecting assembly is fixedly connected to the output shaft of the linear reciprocating power driving member, and the other end of the connecting assembly is fixedly connected to the adjusting ring 18. In this case, the linear traction mechanism drives the adjusting ring 18 to reciprocate axially along the annular gap 3 between the inner tube 1 and the outer tube 2, for example, the connecting assembly may include a ball screw and a rotary motion driving member, and the rotary motion driving member and the ball screw interact with each other to convert the rotary motion provided by the rotary motion driving member into the linear motion of the ball screw, and further, the linear motion of the ball screw can be converted into the linear motion of the adjusting ring 18. In addition to this, the movable end of the hydraulic cylinder can be directly used to provide the adjusting ring 18 with a force reciprocating axially along the annular gap 3 between the inner tube 1 and the outer tube 2.
Wherein the connecting assembly comprises a connecting bracket 20 and a plurality of connecting rods 19. One ends of the plurality of connection rods 19 are fixedly connected to one side of the connection bracket 20, and the other ends of the plurality of connection rods 19 are fixedly connected to the adjustment ring 18. The other side of the connecting bracket 20 is fixedly connected to the output shaft of the linear reciprocating power prime mover. The connection form has simple structure and low cost, and is easy to realize.
Wherein, the connection points of the connecting rods 19 and the adjusting ring 18 are uniformly distributed along the circumferential direction of the adjusting ring 18. In this case, the adjusting ring 18 can be stressed by a plurality of connecting rods uniformly arranged along the circumferential direction of the adjusting ring 18, and the translational movement of the adjusting ring 18 can be ensured while the stress balance of the adjusting ring 18 is ensured, that is, the adjusting ring 18 is always in the radial direction of the inner pipe 1 or the outer pipe 2 during the axial movement along the annular gap 3 between the inner pipe 1 and the outer pipe 2.
Wherein, the preparation facilities of insulating tube still includes outer tube stop gear. The outer tube stop mechanism comprises a support bracket 26 and a plurality of stop assemblies 27. The center of the supporting frame 26 is provided with an accommodating space 28 along the axial direction of the insulating tube. A plurality of limiting assemblies 27 are arranged on the supporting frame 26 along the radial direction of the heat preservation pipe. During the application, the heat preservation pipe wears to locate in accommodation space 28, and a plurality of spacing subassemblies 27 radially support against in the lateral wall of outer tube 2, through adjusting the surplus that a plurality of spacing subassemblies 27 are located in accommodation space 28, can adjust the axiality between inner tube 1 and the outer tube 2. In this case, the allowance of the plurality of limiting assemblies 27 in the accommodating space 28 is adjusted, so that the outer side wall of the outer tube 2 adjusted by the adjusting ring 18 can be subjected to centripetal forces of the plurality of limiting assemblies 27 in a plurality of directions, and therefore, the outer tube 2 can be prevented from moving radially after the adjusting ring 18 is removed, that is, the coaxiality between the inner tube 1 and the outer tube 2 can be maintained for a long time.
The support frame 26 comprises a lower support frame 6, an upper support frame 5, a connecting arm 12, a telescopic mechanism 29, a hinge lug 31 and a fixing piece 30. The upper support frame 5 and the lower support frame 6 are hinged with each other at a first hinge point 11. One end of the connecting arm 12 is fixedly connected to the upper support frame 5, and the other end of the connecting arm 12 is hinged to the second hinge point 13 with the free end 15 of the telescopic mechanism 29. One end of the hinge lug 31 is fixedly connected to the fixing member 30, and the other end of the hinge lug 31 is hinged to the third hinge point 17 with the fixed end 16 of the telescopic mechanism 29. When the telescopic mechanism 29 is shortened to the limit position, the opening distance between the upper support frame 5 and the lower support frame 6 is larger than or equal to the outer diameter of the outer pipe 2. When the upper support frame 5 and the lower support frame 6 are completely closed, a containing space 28 is formed between the upper support frame 5 and the lower support frame 6, and at this time, the telescopic mechanism 29 reaches the extension limit or has an extension allowance. In this case, when the upper support 5 and the lower support 6 are changed from the open state shown in fig. 3 to the closed state shown in fig. 4, the telescopic mechanism 29 is extended and also rotates counterclockwise around the third hinge point 17 as a rotation center, so that when the upper support 5 and the lower support 6 are completely closed, the accommodating space 28 is formed between the upper support 5 and the lower support 6, and at this time, the telescopic mechanism 29 reaches the extension limit or has an extension margin, so that the telescopic mechanism 29 can provide an accidental opening preventing force for the upper support 5 and the lower support 5 after the upper support 5 and the lower support 6 are completely closed, thereby ensuring the closing stability between the upper support 5 and the lower support 6.
Wherein, spacing subassembly 27 is including propping top 7, adjusting lever 8 and adjusting a section of thick bamboo 9. One side of the abutting head 7 is fixedly connected to the adjusting rod 8, and the other side of the abutting head 7 abuts against the outer tube 2, so that the outer tube 2 is limited by the abutting heads 7 and is located inside a limiting space 32 enclosed by the abutting surfaces 10 of the abutting heads 7. The adjusting cylinder 9 is fixedly connected to the supporting frame 26. The adjusting rod 8 is matched with the adjusting cylinder 9, so that the adjusting rod 8 adjusts the allowance of the adjusting rod 8 in the accommodating space 28 under the radial direction of the adjusting cylinder 9. In this embodiment, the abutting surface 10 of the abutting head 7 is a plane, and when the limiting component 27 is used to limit the outer tube 2, the abutting surface 10 of the abutting head 7 is externally tangent to the outer tube 2, in this case, the turning of the abutting head 7 is more convenient, and therefore, the manufacturing cost can be saved. In this embodiment, the abutting head 7 is in a long strip shape along the axial direction of the outer tube 2, and the length of the long strip abutting head 7 is closer to the axial length of the outer tube 2, so that the outer tube 2 can be prevented from generating axial deflection, and the effect of coaxially maintaining the inner tube 1 and the outer tube 2 is better. In this embodiment, the adjusting rod 8 and the adjusting cylinder 9 are matched in any one of a threaded fit and a snap fit.
Wherein, the preparation device of the heat preservation pipe also comprises a limiting bracket 35. The limiting bracket 35 is connected to the bracket 20, and the radial length of the limiting bracket 35 is greater than the diameter of the inner tube 1, so that when the inner tube 1 moves towards the bracket 20, the limiting bracket 35 can stop the inner tube 1 from moving continuously at a set position. In this case, the reason why the limit bracket 35 is provided is that, when the thermal insulation pipe to be filled is in an inclined state in which one end is low and the other end is high in the axial direction by the tilting mechanism, if the inner pipe 1 moves axially relative to the outer pipe 2, axial misalignment between the inner pipe 1 and the outer pipe 2 is likely to occur, and after the limit bracket 35 is increased, the magnitude of the axial misalignment occurring between the inner pipe 1 and the outer pipe 2 can be reduced. In this embodiment, the limiting bracket 35 includes a radial limiting rod 33 and a plurality of axial limiting rods 34. The length of the radial limiting rod 33 is greater than the diameter of the inner tube 1, the radial limiting rod 33 is connected to the support 20 through a plurality of axial limiting rods 34, the limiting length of the plurality of axial limiting rods 34 between the radial limiting rod 33 and the support 20 is adjustable, for example, a plurality of connecting holes are arranged at the joint of the axial limiting rod 34 and the support 20, a clip capable of being matched can be arranged between the axial limiting rod 34 and the connecting holes, wherein a plurality of clamping positions are arranged on the axial limiting rod 34, and under the condition, the axial limiting rod 34 is moved along the axial direction, namely, the limiting length of the axial limiting rod 34 between the radial limiting rod 33 and the support 20 can be adjusted through the matching between the plurality of clamping positions arranged on the axial limiting rod 34 and the connecting holes.
EXAMPLE III
Referring to fig. 7 and 8, in the apparatus for manufacturing a thermal insulation pipe according to the third embodiment of the present invention, the tilting mechanism includes a support shaft 21. The support shaft 21 radially sets up in the bottom of outer tube 2, and the insulating tube can use support shaft 21 as the fulcrum to vert for wait to fill the insulating tube and form the low and high tilt state of other end of one end along the axial, and/or, make the insulating tube who fills fluid heat preservation material resume to be the horizontality.
Example four
Referring to fig. 9, in the apparatus for manufacturing a thermal insulation pipe according to the fourth embodiment of the present invention, the tilting mechanism includes a first pair of lifting mechanisms 22 and a second pair of lifting mechanisms 23. The free ends of the first pair of lifting mechanisms 22 are fixedly attached to the insulating tube at a first radial cross-section. The free ends of the second pair of lifting mechanisms 23 are fixedly connected to the second radial section of the insulating pipe. The free ends of the first pair of lifting mechanisms 22 are extended by a first length, and the free ends of the second pair of lifting mechanisms 23 are extended by a second length, so that after the extension, the height of the peak of the first pair of lifting mechanisms 22 is h1, and the height of the peak of the second pair of lifting mechanisms 23 is h 2. When h1 ≠ h2, the tilting mechanism enables the thermal insulation pipe to be filled to form an inclined state with one end low and the other end high along the axial direction under the support of the first pair of lifting mechanisms 22 and the second pair of lifting mechanisms 23. When h1 is h2, the tilting mechanism allows the thermal insulation pipe filled with the fluid thermal insulation material to axially return to a horizontal state by being supported by the first pair of lifting mechanisms 22 and the second pair of lifting mechanisms 23.
EXAMPLE five
Referring to fig. 10, in the device for preparing the thermal insulation pipe according to the fifth embodiment of the present invention, the tilting mechanism includes a first hoisting mechanism 24 and a second hoisting mechanism 25. The free end of the first hoisting mechanism 24 is fixedly connected to the first radial section of the insulating tube. The free end of the second hoisting mechanism 25 is fixedly connected to the second radial section of the insulating pipe. The free end of the first sling 24 is extended a third length and the free end of the second sling 25 is extended a fourth length such that after extension the suspension height of the first sling 24 is h3 and the suspension height of the second sling 25 is h 4. When h3 is not equal to h4, the tilting mechanism enables the thermal insulation pipe to be filled to be in an inclined state with one end low and the other end high along the axial direction under the suspension of the first hoisting mechanism 24 and the second hoisting mechanism 25; when h3 is h4, the tilting mechanism enables the thermal insulation pipe filled with the fluid thermal insulation material to axially return to a horizontal state under the suspension of the first hoisting mechanism 24 and the second hoisting mechanism 25.
Method for producing thermal insulating pipe
EXAMPLE six
Referring to fig. 11, a method for manufacturing an insulating tube according to an embodiment of the present invention includes the following steps:
step S1: assembling the inner pipe 1 and the outer pipe 2 to obtain a heat preservation pipe to be filled;
step S2: placing the intermediate body in a core adjusting mechanism, and adjusting the core of the thermal insulation pipe to be filled so that the inner pipe 1 and the outer pipe 2 which are subjected to core adjustment are coaxial;
step S3: a tilting mechanism is used for tilting the heat preservation pipe to be filled for the first time, so that the heat preservation pipe to be filled forms a tilting state with one end low and the other end high along the axial direction;
step S4: temporarily plugging the lower end of the annular gap of the thermal insulation pipe to be filled;
step S5: injecting a fluid heat insulation material into the annular gap 3 from the high end of the heat insulation pipe to be filled until the replacement gap 3 is filled with the fluid heat insulation material, so as to obtain the heat insulation pipe filled with the fluid heat insulation material;
step S6: the heat preservation pipe to be filled is tilted for the second time by using the tilting mechanism, so that the heat preservation pipe filled with the fluid heat preservation material is restored to be in a horizontal state, wherein the second tilting is the reverse operation of the first tilting;
step S7: foaming and/or solidifying the fluid heat-insulating material in the annular gap 3;
step S8: and obtaining the heat preservation pipe.
The heat-insulating pipe prepared by applying the preparation device and the preparation method of the heat-insulating pipe provided by the invention has the following advantages: firstly, the outer tube 2 of the insulating tube that makes is not invasive, and outer tube 2 does not exist and is fluid heat preservation material filling hole 4 promptly, consequently, can avoid being the insulating tube that fluid heat preservation material leaked in the preparation process because the filling hole 4 that exists on outer tube 2 caused to improve the heat preservation effect of the insulating tube that makes. Secondly, because the process of preparing the heat preservation pipe is not to inject the fluid newspaper material into the annular gap 3 between the inner pipe 1 and the outer pipe 2 from the injection hole 4 arranged at the axial center of the outer pipe 2, but after the centering between the inner pipe 1 and the outer pipe 2 is completed through a core adjusting mechanism, the heat preservation pipe to be filled forms an inclined state with one end low and the other end high along the axial direction by means of a tilting mechanism, in this case, the lower end of the annular gap 3 of the heat preservation pipe is filled through a temporary plugging belt, and the fluid heat preservation material is naturally filled into the annular gap between the inner pipe 1 and the outer pipe 2 by utilizing the self gravity of the fluid heat preservation material, so that the heat preservation pipe filled with the fluid heat preservation material is obtained; then, the heat preservation pipe filled with the fluid heat preservation material is returned to be in a horizontal state again by the aid of the tilting mechanism, and at the moment, the fluid heat preservation material naturally flows in the annular gap 3 between the inner pipe 1 and the outer pipe 2 again by the aid of self gravity; and finally, foaming and/or solidifying the fluid heat-insulating material in the annular gap 3 between the inner pipe 1 and the outer pipe 2 to obtain the heat-insulating pipe provided by the invention. In this case, the fluid thermal insulation material can be uniformly distributed in the annular gap 3 between the inner pipe 1 and the outer pipe 2 along the axial direction, and the problem that the thermal insulation effect of the manufactured thermal insulation pipe is reduced due to different densities at different radial sections is solved.
Wherein, the step of removing the temporary plugging is also included between the step of foaming and/or solidifying the heat insulation material to be fluid in the annular gap 3 and the step of obtaining the heat insulation pipe. In some cases, the temporary closure may be the adjustment ring 18 or a material that is the same shape as the adjustment ring 18 but is less likely to adhere to the foamed or cured insulating material.
EXAMPLE seven
Different from the method for manufacturing the thermal insulation pipe provided in the sixth embodiment of the present invention, in the method for manufacturing the thermal insulation pipe provided in the seventh embodiment of the present invention, in the step of foaming and/or solidifying the thermal insulation material to be fluid in the annular gap 3, the method further includes the step of rotating the thermal insulation pipe filled with the thermal insulation material with the fluid clockwise or counterclockwise by using the axial direction of the thermal insulation pipe filled with the thermal insulation material with the fluid as a rotation axis. In this case, since the fluid thermal insulation material is still moved downward by its own gravity in the foaming and/or solidification process in the annular gap 3 without external interference, so that the foamed and/or solidified thermal insulation material is not uniform in the circumferential direction and affects the thermal insulation effect of the entire thermal insulation pipe, however, after the step of rotating the thermal insulation pipe filled with the fluid thermal insulation material clockwise or counterclockwise by using the axial direction of the thermal insulation pipe filled with the fluid thermal insulation material as a rotation axis in the foaming and/or solidification step of the fluid thermal insulation material in the annular gap 3, the thermal insulation pipe filled with the fluid thermal insulation material is also self-transferred by using its own mandrel as a rotation center in the foaming and/or solidification process of the fluid thermal insulation material in the annular gap 3, the problem that the heat insulation material is not uniformly distributed in the circumferential direction of the heat insulation pipe can be solved, and therefore, the heat insulation performance of the manufactured heat insulation pipe can be further ensured.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (15)
1. A device for preparing a heat preservation pipe comprises an inner pipe (1), an outer pipe (2) and a heat preservation material,
the inner pipe (1) is coaxial with the outer pipe (2),
the inner diameter of the outer pipe (2) is larger than the outer diameter of the inner pipe (1) so that an annular gap (3) is formed between the inner pipe (1) and the outer pipe (2);
the heat insulation material is uniformly filled in the annular gap (3), so that the density of the heat insulation material in different radial sections of the heat insulation pipe is uniform;
it is characterized in that the preparation method is characterized in that,
the preparation device of the heat preservation pipe comprises a core adjusting mechanism and a tilting mechanism,
the core adjusting mechanism is used for centering the inner pipe (1) and the outer pipe (2) so that the inner pipe (1) and the outer pipe (2) are coaxial;
the tilting mechanism is used for tilting the heat preservation pipe to be filled, so that the heat preservation pipe to be filled forms a tilting state with one end low and the other end high along the axial direction;
and/or the presence of a gas in the gas,
the tilting mechanism is used for tilting the heat insulation pipe filled with the fluid heat insulation material, so that the heat insulation pipe filled with the fluid heat insulation material is restored to a horizontal state.
2. The apparatus for manufacturing an insulating tube according to claim 1, wherein the insulating material is formed by solidifying a fluid insulating material.
3. The apparatus for manufacturing an insulated pipe according to claim 1, wherein the core adjusting mechanism includes a gap adjusting mechanism,
the clearance adjusting mechanism comprises an adjusting ring (18) and a linear traction mechanism,
the inner diameter of the adjusting ring (18) is equal to the outer diameter of the inner pipe (1), and the outer diameter of the adjusting ring (18) is equal to the inner diameter of the outer pipe (2);
the free end of the linear traction mechanism is fixedly connected to the adjusting ring.
4. The apparatus for preparing an insulated pipe according to claim 3, wherein the linear drawing mechanism includes a linear reciprocating power driving member and a connecting member,
one end of the connecting component is fixedly connected with an output shaft of the linear reciprocating power driving component,
the other end of the connecting component is fixedly connected with the adjusting ring (18).
5. Device for the production of insulating pipes according to claim 4, characterized in that said connection assembly comprises a connection bracket (20) and a plurality of connection rods (19),
one end of each connecting rod (19) is fixedly connected with one side of the connecting bracket (20),
the other ends of the connecting rods (19) are fixedly connected with the adjusting ring (18),
the other side of the connecting bracket (20) is fixedly connected with an output shaft of the linear reciprocating power driving element.
6. The apparatus for manufacturing a thermal insulation pipe according to claim 5, wherein the plurality of connecting rods (19) are uniformly connected to the adjusting ring (18) along the circumferential direction of the adjusting ring (18).
7. The apparatus for manufacturing an insulating tube according to claim 3, further comprising an outer tube limiting mechanism,
the outer tube limiting mechanism comprises a supporting frame (26) and a plurality of limiting assemblies (27),
an accommodating space (28) along the axial direction of the heat preservation pipe is arranged in the center of the support frame (26),
the plurality of limiting assemblies (27) are arranged on the supporting frame (26) along the radial direction of the heat preservation pipe.
8. The device for preparing the insulating tube according to claim 7, wherein the support frame (26) comprises a lower support frame (6), an upper support frame (5), a connecting arm (12), a telescoping mechanism (29), a hinge lug (31) and a fixing piece (30),
the upper support frame (5) and the lower support frame (6) are hinged to a first hinge point (11);
one end of the connecting arm (12) is fixedly connected to the upper support frame (5), and the other end of the connecting arm (12) is hinged to a second hinge point (13) with the free end (15) of the telescopic mechanism (29);
one end of the hinge lug (31) is fixedly connected with the fixing piece (30),
the other end of the hinge lug (31) is hinged with a fixed end (16) of the telescopic mechanism (29) through a third hinge joint (17);
when the telescopic mechanism (29) is shortened to the limit position, the opening distance between the upper support frame (5) and the lower support frame (6) is larger than or equal to the outer diameter of the outer pipe (2),
when the upper support frame (5) and the lower support frame (6) are completely closed, the accommodating space (28) is formed between the upper support frame (5) and the lower support frame (6), and at the moment, the telescopic mechanism (29) reaches the extension limit or has extension allowance.
9. The device for preparing the insulating tube according to claim 7, wherein the limiting component (27) comprises an abutting head (7), an adjusting rod (8) and an adjusting cylinder (9),
one side of the propping head (7) is fixedly connected with the adjusting rod (8),
the other side of the abutting head (7) abuts against the outer pipe (2), so that the outer pipe (2) is limited by the abutting heads (7) and is positioned in a limiting space (32) enclosed by the abutting surfaces (10) of the abutting heads (7);
the adjusting cylinder (9) is fixedly connected to the supporting frame (26);
the adjusting rod (8) is matched with the adjusting cylinder (9), so that the adjusting rod (8) is guided in the radial direction of the adjusting cylinder (9) to adjust the allowance of the adjusting rod (8) in the accommodating space (28).
10. The device for preparing the heat preservation pipe as claimed in claim 9, wherein the adjusting rod (8) is matched with the adjusting cylinder (9) in a manner selected from any one of a threaded fit and a snap fit.
11. The apparatus for manufacturing an insulating tube according to claim 5, further comprising a position-limiting bracket (35),
the limiting support (35) is connected to the support (20), and the radial length of the limiting support (35) is larger than the diameter of the inner pipe (1), so that when the inner pipe (1) moves towards the support (20), the limiting support (35) can stop the inner pipe (1) from moving continuously at a set position.
12. Device for producing insulating pipes according to claim 11, characterised in that the limiting bracket (35) comprises a radial limiting rod (33) and a plurality of axial limiting rods (34),
the length of the radial limiting rod (33) is larger than the diameter of the inner pipe (1),
the radial limiting rods (33) are connected to the bracket (20) through the plurality of axial limiting rods (34),
the limiting length of the plurality of axial limiting rods (34) between the radial limiting rods (33) and the support (20) is adjustable.
13. The apparatus for manufacturing a thermal insulating tube according to claim 1, wherein said tilting mechanism includes a support shaft (21),
the support shaft (21) radially set up in the bottom of outer tube (2), the insulating tube can use support shaft (21) verts as the fulcrum, makes it forms the low and high tilt state of other end of one end along the axial to wait to fill the insulating tube, and/or, makes the insulating tube who fills fluid heat preservation material reply and be the horizontality.
14. The apparatus for preparing a thermal insulating tube according to claim 1, wherein the tilting mechanism includes a first pair of elevating mechanisms (22) and a second pair of elevating mechanisms (23),
the free ends of the first pair of lifting mechanisms (22) are fixedly connected to the first radial section of the heat preservation pipe,
and the free ends of the second pair of lifting mechanisms (23) are fixedly connected to the second radial section of the heat-insulating pipe.
15. Device for the production of insulating tubes according to claim 1, characterized in that said tilting means comprise first lifting means (24) and second lifting means (25),
the free end of the first hoisting mechanism (24) is fixedly connected to the first radial section of the heat preservation pipe,
and the free end of the second hoisting mechanism (25) is fixedly connected to the second radial section of the heat-insulating pipe.
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| CN202020204377.XU CN212564939U (en) | 2020-02-25 | 2020-02-25 | Preparation device of thermal insulation pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111237590A (en) * | 2020-02-25 | 2020-06-05 | 大城县利德防腐保温设备有限公司 | Thermal insulation pipe, preparation device and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237590A (en) * | 2020-02-25 | 2020-06-05 | 大城县利德防腐保温设备有限公司 | Thermal insulation pipe, preparation device and preparation method thereof |
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