Backpack type ceramic composite bent pipe

Abstract

The utility model relates to the technical field of pipeline machining, and discloses a backpack type ceramic composite bent pipe which comprises a bent pipe body, a plurality of limiting blocks are arranged on the bent pipe body, a backpack shell is arranged at the bottom of the bent pipe body, a connecting mechanism is arranged on the outer wall of the backpack shell, and a protective shell is arranged in the backpack shell. A protective shell is arranged in the knapsack shell, a protective layer attached to the side wall of the bent pipe body is arranged in the protective shell, and a plurality of buffer mechanisms connected to the knapsack shell are arranged at the bottom of the protective shell. The materials of the protective layer, such as wear-resistant materials, high-temperature-resistant materials or corrosion-resistant materials, can be flexibly selected according to different working scenes, so that the bent pipe can better adapt to various complex working environments, the service life is prolonged, and through the arrangement of the buffer mechanism, the expansion caused by heat and contraction caused by cold of the pipe body can be relieved to a certain extent, and the knapsack shell is prevented from cracking.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline processing technical field, specifically relates to a backpack type ceramic composite elbow. BACKGROUND

[0002] In modern industrial production, pipeline system is an indispensable important component. Among them, the backpack type ceramic composite elbow is widely used in various high wear and high corrosion industrial environments due to its excellent wear resistance and corrosion resistance. However, the existing backpack type ceramic composite elbow still has some problems in practical application, which needs to be solved urgently.

[0003] Firstly, the backpack on most of the current backpack type ceramic composite elbows is fixed on the outside of the wear-resistant ash conveying pipe elbow through welding. Although this welding method can provide strong connection strength, it also has obvious disadvantages. When the elbow is worn or damaged due to long-term use, the backpack and the elbow must be replaced as a whole. This not only increases the cost of pipeline replacement and maintenance, but also causes waste of resources. Secondly, the ceramic composite elbow needs to adapt to various working scenarios. Due to the easy wear and damage characteristics of the elbow, a single protective filler cannot meet the changing working requirements. For example, in the case where the outer wall of the pipe body needs to be prevented from being worn, a wear-resistant filler needs to be used; in high temperature environment, a high temperature resistant filler needs to be used to ensure the stability of the pipeline; and in corrosive environment, a corrosion resistant filler needs to be used. However, the traditional backpack type ceramic composite elbow cannot flexibly adjust the filler according to different working scenarios, which greatly reduces the service life of the elbow body.

[0004] In addition, the traditional welding method is prone to cracking when the pipe body expands and contracts under low and high temperature. This not only affects the normal use of the pipeline, but also may cause serious safety accidents.

[0005] In summary, the backpack type ceramic composite elbow in the prior art has problems such as high replacement cost, inability to adapt to changing working scenarios, and easy cracking at the welding part. Therefore, a new type of backpack type ceramic composite elbow is needed, which can effectively solve the above problems and improve the service life and reliability of the pipeline. INVENTION CONTENTS

[0006] The utility model aims at above -mentioned problem provides a backpack type ceramic composite elbow that operation is simple and quick and can adapt to different working environment needs and can save use cost.

[0007] The utility model discloses a backpack type ceramic composite elbow pipe which is characterized in that a plurality of limiting blocks are arranged on the left and right side walls of the elbow pipe body along the length direction of the body at intervals, a backpack shell is arranged on the curved outer wall of the bottom of the elbow pipe body and rests on the limiting blocks, a connecting mechanism is arranged on the outer wall of the backpack shell and cooperates with the limiting blocks, a protective shell is arranged in the backpack shell, a protective layer is arranged on the side wall of the elbow pipe body inside the protective shell, and a plurality of buffer mechanisms are arranged on the bottom of the protective shell and connected to the backpack shell.

[0008] With the above structure, the backpack shell can be fixed on the outer wall of the elbow pipe body and prevented from displacement by cooperation of the plurality of limiting blocks on the elbow pipe body with the backpack shell and the connecting mechanism on the backpack shell, and the installation process can be made more convenient, which not only saves the installation time but also reduces the dependence on professional technicians. The protective shell and the protective layer arranged in the backpack shell can flexibly select the material of the protective layer according to different working scenes, such as wear-resistant material, high-temperature-resistant material or corrosion-resistant material, so that the elbow pipe can better adapt to various complex working environments and prolong the service life. The buffer mechanism can relieve the thermal expansion and contraction of the pipe body to some extent and prevent the backpack shell from cracking.

[0009] Preferably, the elbow pipe body is a multi-section pipe body welded into an elbow pipe structure, the inner wall of the pipe body is covered with a ceramic patch, the plurality of limiting blocks arranged on the left and right sides of the elbow pipe body are symmetrical to each other, the limiting blocks on the same side are located in the same horizontal plane, and a first through hole penetrating the upper and lower end faces is arranged on each limiting block. The limiting blocks on the left and right sides of the elbow pipe body located in the same horizontal plane can make the upper side of the backpack shell clamped on the lower end face of the limiting block and play a certain positioning and installation role.

[0010] Preferably, the backpack shell is a four-enclosed shell structure with multiple baffles, and the distance between the left and right baffles of the backpack shell is adapted to the diameter of the elbow body. First arc-shaped openings are arranged on the front and rear baffles of the backpack shell and are adapted to the curvature of the outer wall of the elbow body. A ceramic sealing strip is arranged on the inner wall of the upper end of the left and right baffles of the backpack shell and is adapted to the length of the two baffles. The first arc-shaped openings arranged on the front and rear baffles of the backpack shell are adapted to the curvature of the outer wall of the elbow body, which allows the backpack shell to completely fit the outer wall of the elbow body and provides uniform protection. The design of the first arc-shaped openings can also reduce the stress concentration of the backpack shell on the elbow body and prolong the service life of the elbow. The ceramic sealing strip can effectively prevent material leakage from the upper opening of the backpack shell and enhance the sealing performance of the entire pipeline system. The ceramic sealing strip also has excellent wear resistance and corrosion resistance, which can further improve the service life of the backpack shell.

[0011] Preferably, the connecting mechanism includes multiple positioning blocks fixed to the outer walls of the left and right baffles of the backpack shell. The positioning blocks correspond one-to-one with the limiting blocks, and the positioning blocks are provided with second through holes corresponding to the first through holes. The positioning blocks and the limiting blocks are provided with fixed bolts passing through the first through holes and the second through holes.

[0012] Preferably, the protective shell includes a lower sealing plate and a filling box body fixed to the upper end surface of the lower sealing plate. The size of the filling box body is adapted to the size of the interior of the backpack shell. The filling box body is a rectangular shell with a closed upper end and is provided with second arc-shaped openings on the upper ends of the front and rear side plates and are adapted to the side walls of the elbow body. The size of the filling box body is adapted to the size of the interior of the backpack shell, ensuring that the protective shell can completely fill the interior space of the backpack shell. This not only improves the fixing effect of the protective shell but also effectively prevents the displacement or shedding of the filler during use. The design of the second arc-shaped openings can also reduce the stress concentration of the filling box body on the elbow body and prolong the service life of the elbow. The open upper design of the filling box body makes it easier and faster to add and replace the filler. Users can choose appropriate fillers according to different working scenarios, such as wear-resistant materials, high-temperature-resistant materials, or corrosion-resistant materials. In this way, the elbow can better adapt to various complex working environments and prolong the service life.

[0013] Preferably, the length and width of the upper end surface of the lower sealing plate are greater than the length and width of the lower end of the back-pack shell, and a sealing ring is arranged on the lower part of the outer wall of the ring filling box body and attached to the lower sealing plate. Through the cooperation of the sealing ring and the lower sealing plate, the leakage of the filling material from the lower part can be effectively prevented, and the structural stability of the entire protective shell is enhanced. At the same time, the lower sealing plate can also provide additional support to prevent the filling box body from deforming or being damaged during use.

[0014] Preferably, the protective layer is an alumina high-hardness ceramic material or a rubber elastomer material filled in the filling box body, and the upper end surface of the protective layer is provided with an arc-shaped groove adapted to the curvature of the bend pipe body. When the protective layer is made of alumina high-hardness ceramic material, the wear resistance of the bend pipe can be significantly improved. Alumina ceramic material has extremely high hardness and wear resistance, which can effectively resist the impact and wear of the material and prolong the service life of the bend pipe. When the protective layer is made of rubber elastomer material, it can provide good elasticity and buffering effect. The rubber material can effectively absorb the impact energy of the material and reduce the damage to the bend pipe body. The upper end surface of the protective layer is provided with an arc-shaped groove adapted to the curvature of the bend pipe body, so that the protective layer can completely fit the curvature of the bend pipe body and provide uniform protection. The design of the arc-shaped groove can also reduce the stress concentration of the protective layer on the bend pipe body and prolong the service life of the bend pipe.

[0015] Preferably, the buffer mechanism includes a first mounting plate arranged on the side wall of the lower sealing plate, and a second mounting plate arranged on the lower part of the outer wall of the back-pack shell. The first mounting plate is located directly below the second mounting plate, and the two plate bodies are provided with corresponding third and fourth through holes. The first and second mounting plates are provided with a reset screw passing through the third and fourth through holes. The upper part of the reset screw is provided with a reset spring clamped between the screw head and the second mounting plate. Through the arrangement of the buffer mechanism, the thermal expansion and contraction of the pipe body can be relieved to some extent, and the back-pack shell can be prevented from cracking.

[0016] In summary, the utility model has the advantages that the utility model is simple and fast to operate, can adapt to different working environments and save use cost. Through the cooperation of the multiple limiting blocks on the bend pipe body and the back-pack shell and the connecting mechanism on the back-pack shell, the back-pack shell can be conveniently fixed on the outer wall of the bend pipe body and prevented from displacement change. The installation process can also be made more simple and fast, which not only saves installation time but also reduces the dependence on professional technicians. The protective shell and the protective layer arranged in the back-pack shell can flexibly select the material of the protective layer according to different working scenes, such as wear-resistant material, high-temperature-resistant material or corrosion-resistant material. In this way, the bend pipe can better adapt to various complex working environments and prolong the service life. Through the arrangement of the buffer mechanism, the thermal expansion and contraction of the pipe body can be relieved to some extent, and the back-pack shell can be prevented from cracking. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the inside structure schematic view of the utility model backpack shell;

[0019] Figure 3 It is the side view structure schematic view of the utility model backpack shell.

[0020] In the figure: 1, elbow body;2, limit block;3, backpack shell;4, connecting mechanism;5, protective shell;6, protective layer;7, buffer mechanism;8, first through hole;9, first arc-shaped gap;10, ceramic sealing strip;11, positioning block;12, second through hole;13, fixed bolt;14, lower sealing plate;15, filling box body;16, second arc-shaped gap;17, sealing ring;18, first mounting plate;19, second mounting plate;20, third through hole;21, fourth through hole;22, reset bolt;23, reset spring;24, arc-shaped slot. DETAILED DESCRIPTION

[0021] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0022] In the description of the present application, it is understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0023] In the description of the present application, it is understood that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] The following is a preferred embodiment of the utility model in combination with the drawings.

[0025] The utility model relates to a kind of back-pack shell and bend pipe body, including bend pipe body 1, multiple limiting blocks 2 are fixedly connected on the left and right two side walls of bend pipe body 1 along the length direction of body, and simultaneously, back-pack shell 3 is also provided on the curved outer tube wall of the bottom of bend pipe body 1 and is supported on limiting block 2, when design, above-mentioned bend pipe body 1 is the bend pipe structure of multiple pipe bodies welding composition and the inner wall of pipe body is covered with ceramic patch, the limiting block 2 of multiple limiting blocks 2 being provided on the left and right sides of bend pipe body 1 is mutually symmetrical and same side limiting block 2 is located in same horizontal plane, and first through-hole 8 is equipped on each limiting block 2 and penetrates upper and lower end faces.This way, through the limiting block 2 of bend pipe body 1 left and right sides being located in same horizontal plane, the upper side of back-pack shell 3 can be clamped on the lower end face of limiting block 2, and the effect of positioning installation is played.

[0026] The above-mentioned back-pack shell 3 is the shell structure of four closed upper and lower openings of multiple baffles, wherein, the interval of left and right two baffles of back-pack shell 3 is adapted to the diameter size of bend pipe body 1, and first arc-shaped gap 9 is provided on the front and rear two baffles of back-pack shell 3 and is adapted to the outer wall arc of bend pipe body 1, when design, first arc-shaped gap 9 is semicircular and diameter is adapted to the outer diameter size of bend pipe body 1, this way, through the first arc-shaped gap 9 of front and rear two baffles of back-pack shell 3 being provided and being adapted to the outer wall arc of bend pipe body 1, this design makes back-pack shell 3 can completely fit the outer wall of bend pipe body 1, provides uniform protection effect, simultaneously, the design of first arc-shaped gap 9 can also reduce the stress concentration of back-pack shell 3 to bend pipe body 1, prolongs the service life of bend pipe;Ceramic sealing strip 10 is also provided on the inner wall of left and right two baffles of back-pack shell 3 close to upper end edge, the ceramic sealing strip 10 is provided along the length direction of left and right two baffles of back-pack shell 3 and length is equal to the length of two baffles, this way, through the setting of ceramic sealing strip 10, material leakage from the upper end opening of back-pack shell 3 can be effectively prevented, and the sealing performance of entire pipeline system is enhanced, wherein, ceramic sealing strip 10 also has excellent wear resistance and corrosion resistance, can further improve the service life of back-pack shell 3.

[0027] The connecting mechanism 4 is arranged on the outer wall of the backpack shell 3 and cooperates with the limiting block 2. The connecting mechanism 4 comprises a plurality of positioning blocks 11 which are respectively fixed on the outer walls of the left and right baffles of the backpack shell 3. The positioning blocks 11 correspond to the limiting blocks 2 one by one in the up-down direction, and the second through holes 12 corresponding to the first through holes 8 are arranged on the positioning blocks 11. The fixed bolts 13 pass through the first through holes 8 and the second through holes 12. The lower parts of the fixed bolts 13 are screwed with fixed nuts. Through the cooperation of the plurality of limiting blocks 2 on the elbow pipe body 1 and the connecting mechanism 4 on the backpack shell 3, the backpack shell 3 can be conveniently fixed on the outer wall of the elbow pipe body 1 and prevented from displacement. The installation process is also more convenient and fast. Therefore, the installation time is saved, and the dependence on professional technicians is reduced.

[0028] The protective shell 5 is arranged in the backpack shell 3. The protective shell 5 comprises a lower sealing plate 14 and a filling box body 15 fixed on the upper end face of the lower sealing plate 14. The size of the filling box body 15 is adapted to the size of the interior of the backpack shell 3. The filling box body 15 is a rectangular shell with a closed periphery and an open top. Second arc-shaped openings 16 are arranged on the upper ends of the front and rear side plates of the filling box body 15 and are adapted to the side wall of the elbow pipe body 1. The size of the filling box body 15 is adapted to the size of the interior of the backpack shell 3, so that the protective shell 5 can completely fill the internal space of the backpack shell 3. Therefore, the fixing effect of the protective shell 5 is improved, and the displacement or falling of the filling material during use is effectively prevented. The design of the second arc-shaped openings 16 can also reduce the stress concentration of the filling box body 15 on the elbow pipe body 1, prolong the service life of the elbow pipe, and the open top design of the filling box body 15 makes the addition and replacement of the filling material more convenient and fast. Therefore, the workers can select appropriate filling materials according to different working scenes, such as wear-resistant materials, high-temperature-resistant materials or corrosion-resistant materials, so that the elbow pipe can better adapt to various complex working environments and prolong the service life. The length and width of the upper end face of the lower sealing plate 14 are greater than the length and width of the lower end of the backpack shell 3. A sealing ring 17 is fixed on the lower part of the outer wall of the filling box body 15 and abuts against the lower sealing plate 14. Through the cooperation of the sealing ring 17 and the lower sealing plate 14, the leakage of the filling material from the lower part is effectively prevented, and the structural stability of the entire protective shell 5 is enhanced. Meanwhile, the lower sealing plate 14 can provide additional support to prevent the filling box body 15 from deforming or being damaged during use.

[0029] The protective layer 6 is filled with alumina high-hardness ceramic material or rubber elastomer material in the filling box 15, and the upper end face of the protective layer 6 is provided with an arc-shaped groove 24 matched with the curvature of the elbow body 1, wherein the groove body curvature of the cross section of the arc-shaped groove 24 is the same as the second arc-shaped notch 16, and when the protective layer 6 is made of alumina high-hardness ceramic material, the wear resistance of the elbow can be significantly improved, and the alumina ceramic material has very high hardness and wear resistance, which can effectively resist the impact and wear of the material and prolong the service life of the elbow; when the protective layer 6 is made of rubber elastomer material, good elasticity and buffering effect can be provided, wherein the rubber material can effectively absorb the impact energy of the material and reduce the damage to the elbow body 1, of course, other known materials can also be used, which will not be described here, and when manufacturing, the arc-shaped groove 24 matched with the curvature of the elbow body 1 is arranged on the upper end face of the protective layer 6, so that the protective layer 6 can completely fit the curvature of the elbow body 1, and uniform protection effect is provided, and the design of the arc-shaped groove 24 can also reduce the stress concentration of the protective layer 6 on the elbow body 1, thereby prolonging the service life of the elbow.

[0030] The bottom of the protective shell 5 is provided with a plurality of buffering mechanisms 7 connected to the backpack shell 3, and the buffering mechanisms 7 are arranged on the left and right sides of the lower sealing plate 14 and the left and right sides of the lower part of the backpack shell 3, respectively, and the buffering mechanisms 7 include a first mounting plate 18 fixed vertically on the side wall of the lower sealing plate 14, and a second mounting plate 19 fixed vertically on the outer wall of the lower part of the backpack shell 3, the first mounting plate 18 is located directly below the second mounting plate 19, and the two plate bodies are provided with corresponding third through holes 20 and fourth through holes 21, a reset screw 22 is installed on the first mounting plate 18 and the second mounting plate 19 and passes through the third through hole 20 and the fourth through hole 21, the body of the upper part of the reset screw 22 is provided with a reset spring 23 clamped between the screw head and the second mounting plate 19, and at the same time, the body of the lower part of the reset screw 22 is screwed with a fixing nut, so that the heat expansion and cold contraction of the pipe body can be relieved to a certain extent, the cracking of the backpack shell 3 is prevented, and the protective layer 6 can be completely fitted on the elbow body 1.

[0031] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A backpack ceramic composite elbow comprising an elbow body (1), characterized in that: The left and right side walls of the elbow pipe body (1) are provided with a plurality of limiting blocks (2) along the length direction of the body, the curved outer wall of the bottom of the elbow pipe body (1) is provided with a backpack shell (3) which is supported on the limiting blocks (2), the outer wall of the backpack shell (3) is provided with a connecting mechanism (4) which cooperates with the limiting blocks (2), the backpack shell (3) is provided with a protective shell (5) inside, the protective shell (5) is provided with a protective layer (6) which is attached to the side wall of the elbow pipe body (1), the bottom of the protective shell (5) is provided with a plurality of buffering mechanisms (7) which are connected to the backpack shell (3).

2. The ceramic composite elbow in a backpack as claimed in claim 1, wherein: The elbow pipe body (1) is a bent pipe structure which is composed of a plurality of pipe bodies which are welded together, and the inner wall of the pipe body is covered with a ceramic patch, the plurality of limiting blocks (2) which are provided on the left and right sides of the elbow pipe body (1) are symmetrical to each other and the limiting blocks (2) on the same side are located in the same horizontal plane, and each limiting block (2) is provided with a first through hole (8) which penetrates the upper and lower end faces.

3. The ceramic composite elbow in a backpack as claimed in claim 1, wherein: The backpack shell (3) is a shell structure which is composed of a plurality of baffles and is closed on four sides and open at the top and bottom, the distance between the left and right baffles of the backpack shell (3) is adapted to the diameter of the elbow pipe body (1), the front and rear baffles of the backpack shell (3) are provided with a first arc-shaped opening (9) which is adapted to the curvature of the outer wall of the elbow pipe body (1), the inner wall of the left and right baffles of the backpack shell (3) which are close to the upper end edge is provided with a ceramic sealing strip (10), and the ceramic sealing strip (10) is arranged along the length direction of the left and right baffles of the backpack shell (3) and has a length equal to the length of the two baffles.

4. The ceramic composite elbow in a backpack as claimed in claim 1, wherein: The connecting mechanism (4) includes a plurality of positioning blocks (11) which are respectively fixed to the outer walls of the left and right baffles of the backpack shell (3), the positioning blocks (11) correspond one by one to the limiting blocks (2) in the up-down direction, and the positioning blocks (11) are provided with second through holes (12) which correspond to the first through holes (8), and the positioning blocks (11) and the limiting blocks (2) are provided with fixed bolts (13) which pass through the first through holes (8) and the second through holes (12).

5. The ceramic composite elbow in a backpack as claimed in claim 1, wherein: The protective shell (5) includes a lower sealing plate (14) and a filling box body (15) which is fixed to the upper end face of the lower sealing plate (14), the size of the filling box body (15) is adapted to the size of the inside of the backpack shell (3), the filling box body (15) is a rectangular shell which is closed on four sides and open at the top, and the upper ends of the front and rear side plates of the filling box body (15) are provided with second arc-shaped openings (16) which are adapted to the side walls of the elbow pipe body (1).

6. The ceramic composite elbow in a backpack as claimed in claim 5, wherein: The length and width of the upper end face of the lower sealing plate (14) are greater than the length and width of the lower end of the backpack shell (3), and the lower outer wall of the lower part of the filling box body (15) is provided with a sealing ring (17) which is attached to the lower sealing plate (14).

7. The ceramic composite elbow in a backpack as claimed in claim 1, wherein: The protective layer (6) is an alumina high-hardness ceramic material or a rubber elastomer material which is filled in the filling box body (15), and the upper end face of the protective layer (6) is provided with an arc-shaped groove (24) which is adapted to the curvature of the elbow pipe body (1).

8. The ceramic composite elbow in a backpack as claimed in claim 1, wherein: The buffer mechanism (7) comprises a first mounting plate (18) arranged on the sidewall of the lower sealing plate (14), and a second mounting plate (19) arranged on the outer wall of the lower part of the backpack shell (3), the first mounting plate (18) is located directly below the second mounting plate (19), and corresponding third through holes (20) and fourth through holes (21) are arranged on the two plate bodies, reset bolts (22) passing through the third through holes (20) and the fourth through holes (21) are arranged on the first mounting plate (18) and the second mounting plate (19), and reset springs (23) clamped between the bolt heads and the second mounting plate (19) are arranged on the upper bodies of the reset bolts (22).

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