Corrugated pipeline with external compensator sealing device

Abstract

The invention belongs to the technical field of corrugated pipe compensators, and particularly relates to a corrugated pipeline with an external compensator sealing device, the corrugated pipeline comprises two mounting plates, a telescopic cylinder is fixedly connected between the two mounting plates, the two mounting plates are both provided with feed ports matched with the telescopic cylinder, the telescopic cylinder is composed of a mother cylinder and a son cylinder, and the mother cylinder and the son cylinder are fixedly connected with each other. The main cylinder and the auxiliary cylinder are connected in a sealed and sliding mode, the outer side wall of the telescopic cylinder is sleeved with a corrugated pipe, the corrugated pipe is fixedly arranged between the two mounting plates, two limiting rods are connected between the two mounting plates in a sliding mode, and the two sides of each limiting rod are fixedly connected with a first limiting block and a second limiting block. Under the cooperation of the heat conduction mechanisms and the movement control mechanism, when the telescopic cylinder stretches out and draws back, heat conduction can be conducted on the telescopic area of the telescopic cylinder in time, generated heat is guided out in time through the heat conduction rod, and the heat is prevented from being retained in the corrugated pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of bellows compensators, and in particular relates to a corrugated pipe with an external compensator sealing device. Background Art

[0002] The bellows compensator is a compensating element. It uses the effective expansion and contraction of the bellows, the working body, to absorb the dimensional changes of pipelines, ducts, containers, etc. caused by thermal expansion and contraction, or compensate for the axial, lateral and angular displacements of pipelines, ducts, containers, etc. It can also be used to reduce noise and vibration. Nowadays, in order to avoid contact between gas or liquid and the bellows, a telescopic cylinder is often set inside the bellows to guide the gas or liquid. For example, the existing authorized patent, a corrugated pipe with an external compensator sealing device, includes two mounting plates. The external bellows compensator sealing device is connected to the flanges on the two fluid pipelines through the fixing grooves on the two mounting plates to achieve the connection between the pipeline and the bellows compensator. When the bellows body is deformed, the guide rod guides the two mounting plates to prevent tilting. When the two mounting plates move, the first movable cylinder and the second movable cylinder also move relative to each other.

[0003] However, in the actual use of the above patent, the telescopic tube is constantly extended and retracted, which will cause the telescopic tube to continuously generate heat due to friction. The generated heat will be retained in the bellows and is not easy to be discharged. Over time, the bellows will be easily softened under the continuous heating of heat. As the bellows is continuously extended and retracted, the bellows will be damaged and aged, affecting the service life of the bellows.

[0004] Therefore, we propose a corrugated pipe with an external compensator sealing device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a corrugated pipe with an external compensator sealing device in order to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a corrugated pipe with an external compensator sealing device, comprising two mounting plates, a telescopic cylinder fixedly connected between the two mounting plates, and a feed port matching the telescopic cylinder is provided on both mounting plates, the telescopic cylinder is composed of a mother cylinder and a child cylinder, and the mother cylinder and the child cylinder are sealingly and slidably connected, a bellows is sleeved on the outer wall of the telescopic cylinder, and the bellows is fixedly arranged between the two mounting plates, two limit rods are slidably connected between the two mounting plates, and a first limit block and a second limit block are fixedly connected on both sides of the limit rod, a heat-conducting rod is fixedly connected between the first limit blocks in a transverse direction, and the heat-conducting rod is slidably connected to the two mounting plates, two heat-conducting rings are slidably connected between the two heat-conducting rods, a plurality of heat-conducting mechanisms matching the telescopic cylinder are arranged in a row on the heat-conducting ring, and a moving control mechanism matching the two heat-conducting rings is arranged between the two heat-conducting rods.

[0007] In the above-mentioned corrugated pipe with an external compensator sealing device, the heat-conducting mechanism is composed of a heat-conducting block and a heat-conducting steel ball. The heat-conducting block is arranged on a heat-conducting ring, and the heat-conducting steel ball is rollingly arranged on the heat-conducting block. The heat-conducting steel ball is in contact and connected with the telescopic tube.

[0008] In the above-mentioned corrugated pipe with an external compensator sealing device, a heat-conducting cavity matching with the heat-conducting block is provided on the heat-conducting ring, and the heat-conducting block is slidably connected to the heat-conducting cavity, and a plurality of buffer springs are fixedly connected between the heat-conducting block and the inner wall of the heat-conducting cavity.

[0009] In the above-mentioned corrugated pipe with an external compensator sealing device, the movement control mechanism is composed of two magnetic rings, a corrugated telescopic sleeve and a coil. The two magnetic rings are slidably arranged between two heat-conducting rods, and the magnetic rings are fixedly connected to the corresponding mounting plates through support rods. The corrugated telescopic sleeve is sleeved on the outer side wall of the telescopic tube, the corrugated telescopic sleeve is fixedly arranged between the two heat-conducting rings, and the middle area of ​​the corrugated telescopic sleeve is fixedly connected to the heat-conducting rod, and the coil is wound on the corrugated telescopic sleeve.

[0010] In the above-mentioned corrugated pipe with an external compensator sealing device, both sides of the heat-conducting rod are slidably connected with linear bearings, and the linear bearings are fixedly connected to the mounting plate.

[0011] In the above-mentioned corrugated pipe with an external compensator sealing device, a plurality of thread grooves are provided on both of the two mounting plates, and the plurality of thread grooves are distributed in a ring shape.

[0012] In the above-mentioned corrugated pipe with an external compensator sealing device, a plurality of cams are fixedly connected in a circumferential row on the magnetic ring located on the left side, and a plurality of power generation mechanisms cooperating with the cams are arranged in an axial circumferential row on the mother cylinder, an annular semiconductor refrigeration sleeve is embedded on the telescopic cylinder, and the annular semiconductor refrigeration sleeve is connected in series with each power generation mechanism.

[0013] In the above-mentioned corrugated pipe with an external compensator sealing device, the power generation mechanism includes a fixed block, a conductive cavity, a slider, a support block, a reset spring, a vibrating block and a ceramic piezoelectric sheet. The fixed block is fixedly arranged on the mother cylinder, and the conductive cavity is opened on the fixed block. The slider is slidably connected to the conductive cavity, and the support block is fixedly arranged at the lower end of the slider. The upper end of the slider is fixedly connected with a spherical block that cooperates with the cam. The support block is fixedly connected to the inner bottom surface of the conductive cavity through a plurality of reset springs. The vibrating block is rotatably arranged on the support block, and the ceramic piezoelectric sheet is embedded in the vibrating block. The number of the vibrating blocks and the ceramic piezoelectric sheets is multiple, and each of the ceramic piezoelectric sheets is connected in series with the semiconductor refrigeration sleeve.

[0014] Compared with the prior art, the beneficial effect of the present invention is that when the bellows is deformed, the two mounting plates will move toward each other, so that the telescopic tube will continue to expand and contract, and the two magnetic rings will continue to approach or move away from each other. When the two magnetic rings are close to each other, the magnetic field strength between the two magnetic rings will increase. According to Lenz's law, the coil on the bellows telescopic sleeve will hinder this change, so that the bellows telescopic sleeve will shrink toward the middle, thereby making the two heat-conducting rings approach each other. When the two magnetic rings move away from each other, the magnetic field strength between the two magnetic rings will weaken. At this time, the two heat-conducting rings will move away from each other, and then as the telescopic tube continues to expand and contract, the two heat-conducting rings will move away from each other. The heat ring will move synchronously, so that the various heat-conducting mechanisms on the heat-conducting ring can continuously absorb the heat generated by the telescopic area of ​​the telescopic tube, and transfer it to the outside through the heat-conducting rod to achieve heat dissipation and avoid heat retention in the bellows. In the process of continuous movement of the left magnetic ring, the various cams will be driven to move continuously, so that the cams will continuously squeeze the spherical blocks. With the help of the reset spring, the support block will continuously rebound, and then the vibration block will continuously vibrate, so that the ceramic piezoelectric piece can generate electricity under the action of vibration force to power the semiconductor refrigeration sleeve. Under the action of the semiconductor refrigeration sleeve, the heat dissipation of the telescopic tube will be further accelerated.

[0015] In summary: through the design of the present invention, with the cooperation of various heat conduction mechanisms and movement control mechanisms, the telescopic tube can conduct heat to the telescopic area of ​​the telescopic tube in time when it is telescoped, and the generated heat can be promptly discharged through the heat conduction rod to avoid heat retention in the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a front perspective structural schematic diagram of a corrugated pipe embodiment 1 with an external compensator sealing device provided by the present invention; Figure 2 It is a schematic structural diagram of the cooperation between a heat-conducting ring and a corrugated telescopic sleeve of a corrugated pipe embodiment 1 with an external compensator sealing device provided by the present invention; Figure 3 It is a side view structural schematic diagram of a heat-conducting ring of a corrugated pipe embodiment 1 with an external compensator sealing device provided by the present invention; Figure 4 for Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 5 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 6 It is a front perspective structural schematic diagram of a corrugated pipe embodiment 2 with an external compensator sealing device provided by the present invention; Figure 7 It is a schematic structural diagram of the cooperation between the magnetic ring and the cam of Embodiment 2 of a corrugated pipe with an external compensator sealing device provided by the present invention; Figure 8 It is a front perspective structural schematic diagram of a fixing block of a corrugated pipe embodiment 2 with an external compensator sealing device provided by the present invention.

[0017] In the figure: 1 mounting plate, 2 telescopic cylinder, 3 mother cylinder, 4 child cylinder, 5 bellows, 6 limit rod, 7 first limit block, 8 second limit block, 9 heat conducting rod, 10 heat conducting ring, 11 heat conducting mechanism, 111 heat conducting block, 112 heat conducting steel ball, 12 movement control mechanism, 121 magnetic ring, 122 corrugated telescopic sleeve, 123 coil, 13 heat conducting cavity, 14 buffer spring, 15 linear bearing, 16 thread groove, 17 cam, 18 power generation mechanism, 181 fixed block, 182 conductive cavity, 183 slider, 184 support block, 185 reset spring, 186 vibration block, 187 ceramic piezoelectric sheet, 19 semiconductor refrigeration sleeve, 20 spherical block, 21 feed port, 22 support rod. DETAILED DESCRIPTION

[0018] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Embodiment 1:

[0019] like Figure 1-5As shown, a corrugated pipe with an external compensator sealing device includes two mounting plates 1, and the two mounting plates 1 are each provided with a plurality of thread grooves 16, and the plurality of thread grooves 16 are distributed in an annular manner. The arrangement of the thread grooves 16 facilitates the mounting plates 1 to be connected to the flange on the fluid pipeline. A telescopic cylinder 2 is fixedly connected between the two mounting plates 1, and the two mounting plates 1 are each provided with a feed port 21 that matches the telescopic cylinder 2. The telescopic cylinder 2 is composed of a mother cylinder 3 and a child cylinder 4, and the mother cylinder 3 and the child cylinder 4 are sealed and slidably connected. The outer wall of the telescopic cylinder 2 is sleeved with a bellows 5, and the bellows 5 It is fixedly arranged between the two mounting plates 1, and two limit rods 6 are slidably connected between the two mounting plates 1, and the first limit blocks 7 and the second limit blocks 8 are fixedly connected on both sides of the limit rods 6, and heat-conducting rods 9 are fixedly connected between the first limit blocks 7 transversely, and the heat-conducting rods 9 are slidably connected to the two mounting plates 1, and linear bearings 15 are slidably connected on both sides of the heat-conducting rods 9, and the linear bearings 15 are fixedly connected to the mounting plates 1. By setting the linear bearings 15, the mounting plates 1 can slide more smoothly, and at the same time, the sealing of the connection position between the heat-conducting rods 9 and the mounting plates 1 can be ensured.

[0020] There are two heat-conducting rings 10 slidably connected between the two heat-conducting rods 9. A plurality of heat-conducting mechanisms 11 that cooperate with the telescopic tube 2 are arranged on the heat-conducting ring 10. The heat-conducting mechanism 11 is composed of a heat-conducting block 111 and a heat-conducting steel ball 112. The heat-conducting block 111 is arranged on the heat-conducting ring 10, and the heat-conducting steel ball 112 is rolled on the heat-conducting block 111. The heat-conducting steel ball 112 is in contact with the telescopic tube 2. The heat-conducting steel balls 112 can cooperate with the movement of the heat-conducting ring 10 to continuously absorb the extension of the telescopic tube 2. The heat generated in the contraction area is directed to the outside through the heat-conducting rod 9 to avoid heat retention in the bellows 5. A heat-conducting cavity 13 matched with the heat-conducting block 111 is provided on the heat-conducting ring 10, and the heat-conducting block 111 is slidably connected to the heat-conducting cavity 13. A plurality of buffer springs 14 are fixedly connected between the heat-conducting block 111 and the inner wall of the heat-conducting cavity 13. Through the cooperation of the provided buffer springs 14 and the heat-conducting cavity 13, it is possible to avoid the heat-conducting steel ball 112 from hard contact with the telescopic tube 2, thereby preventing the telescopic tube 2 from being damaged.

[0021] A moving control mechanism 12 matched with the two heat-conducting rings 10 is arranged between the two heat-conducting rods 9. The moving control mechanism 12 is composed of two magnetic rings 121, a corrugated telescopic sleeve 122 and a coil 123. The two magnetic rings 121 are slidably arranged between the two heat-conducting rods 9, and the magnetic rings 121 are fixedly connected to the corresponding mounting plate 1 through the support rod 22. The corrugated telescopic sleeve 122 is sleeved on the outer wall of the telescopic cylinder 2. The corrugated telescopic sleeve 122 is fixedly arranged between the two heat-conducting rings 10, and the middle area of ​​the corrugated telescopic sleeve 122 is fixedly connected to the heat-conducting rod 9. The coil 123 is wound around the inner wall of the telescopic sleeve 2. Assuming that the change in magnetic field strength generated by the opposite movement of the two magnetic rings 121 on the corrugated expansion sleeve 122 cooperates with the coil 123 and uses Lenz's law, the corrugated expansion sleeve 122 can be correspondingly expanded and contracted, and then the two heat-conducting rings 10 can be synchronously moved toward each other in coordination with the expansion and contraction of the expansion tube 2, so that each heat-conducting steel ball 112 on the heat-conducting ring 10 can be moved accordingly to absorb heat from the expansion and contraction area of ​​the expansion tube 2, so as to avoid the heat-conducting steel ball 112 staying at a certain position, so that the heat-conducting steel ball 112 can expand the heat absorption range and accelerate the heat extraction.

[0022] The operating principle of the present invention is now described as follows: When the device is used, the threaded grooves 16 on the mounting plate 1 are matched with bolts to dock with the flange on the fluid pipeline. When the bellows 5 is continuously deformed, the two mounting plates 1 will continuously slide closer or farther away. During the movement of the two mounting plates 1, the two magnetic rings 121 will be driven to continuously move closer or farther away. When the two magnetic rings 121 are close to each other, the magnetic field strength between the two magnetic rings 121 will be enhanced. According to Lenz's law, the coil 123 will hinder this change, so that the bellows expansion sleeve 122 will shrink toward the middle. The bellows expansion sleeve 122 will drive the two heat-conducting rings 10 to slide closer to each other. During the movement of the two heat-conducting rings 10, the heat-conducting steel balls 1 thereon will be driven. 12 rolls on the telescopic tube 2, so that the heat-conducting steel balls 112 continuously absorb the heat generated in the telescopic area of ​​the telescopic tube 2. The heat absorbed by the heat-conducting steel balls 112 will be transferred to the heat-conducting rod 9 through the heat-conducting block 111, and then transferred to the outside through the heat-conducting rod 9 to realize the heat extraction. When the two magnetic rings 121 move away from each other, according to Lenz's law, the corrugated telescopic sleeve 122 will stretch to both sides, so that the two heat-conducting rings 10 move away from each other, and then the two heat-conducting rings 10 can move synchronously with the extension of the telescopic tube 2, so that each heat-conducting steel ball 112 on the heat-conducting ring 10 continues to conduct the heat generated in the telescopic area of ​​the telescopic tube 2, so that the heat can be extracted through the heat-conducting rod 9. Embodiment 2:

[0023] for Figure 6-8The second embodiment shown is different from the first embodiment in that: a plurality of cams 17 are fixedly connected to the magnetic ring 121 on the left side in a row, and a plurality of power generation mechanisms 18 cooperating with the cams 17 are arranged in an axial row on the mother cylinder 3, an annular semiconductor refrigeration sleeve 19 is embedded in the telescopic cylinder 2, and the annular semiconductor refrigeration sleeve 19 is connected in series with each power generation mechanism 18, and the power generation mechanism 18 includes a fixed block 181, a conductive cavity 182, a slider 183, a support block 184, a reset spring 185, a vibration block 186 and a ceramic piezoelectric sheet 187, the fixed block 181 is fixedly arranged on the mother cylinder 3, and the conductive cavity 1 82 is opened on the fixed block 181, the slider 183 is slidably connected to the conductive cavity 182, and the support block 184 is fixedly set at the lower end of the slider 183, and the upper end of the slider 183 is fixedly connected with a spherical block 20 that cooperates with the cam 17, the support block 184 is fixedly connected to the inner bottom surface of the conductive cavity 182 through a plurality of return springs 185, the vibration block 186 is rotatably set on the support block 184, and the ceramic piezoelectric piece 187 is embedded in the vibration block 186, the number of the vibration block 186 and the ceramic piezoelectric piece 187 is multiple, and each ceramic piezoelectric piece 187 is connected in series with the semiconductor refrigeration sleeve 19.

[0024] According to the above arrangement, when the magnetic ring 121 on the left side moves with the mounting plate 1 on the left side, the magnetic ring 121 will drive the cams 17 thereon to continuously squeeze the spherical blocks 20. Under the action of the squeezing force, the support block 184 will squeeze the reset spring 185. When the cam 17 no longer squeezes the spherical block 20, the reset spring 185 will release energy to make the support block 184 rebound. As the cam 17 intermittently squeezes the spherical block 20, the support block 184 will continuously rebound, thereby making the various vibration blocks 186 on the support block 184 continuously vibrate. Under the action of the vibration force, the ceramic piezoelectric sheet 187 can generate electricity to supply power to the semiconductor refrigeration sleeve 19, thereby making the semiconductor refrigeration sleeve 19 able to cool and accelerate the heat dissipation and cooling of the telescopic cylinder 2.

[0025] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated pipe with an external compensator sealing device, comprising two mounting plates (1), characterized in that: A telescopic cylinder (2) is fixedly connected between the two mounting plates (1), and a feed port (21) matching the telescopic cylinder (2) is provided on the two mounting plates (1). The telescopic cylinder (2) is composed of a mother cylinder (3) and a daughter cylinder (4), and the mother cylinder (3) and the daughter cylinder (4) are sealed and slidably connected. The outer wall of the telescopic cylinder (2) is sleeved with a bellows (5), and the bellows (5) is fixedly arranged between the two mounting plates (1). Two limit rods (6) are slidably connected between the two mounting plates (1), and the limit rods (6) are A first limit block (7) and a second limit block (8) are fixedly connected on both sides, a heat conducting rod (9) is fixedly connected between the first limit blocks (7) in a transverse direction, and the heat conducting rod (9) is slidably connected to two mounting plates (1), two heat conducting rings (10) are slidably connected between the two heat conducting rods (9), a plurality of heat conducting mechanisms (11) cooperating with the telescopic cylinder (2) are arranged on the upper side of the heat conducting ring (10), and a movement control mechanism (12) cooperating with the two heat conducting rings (10) is arranged between the two heat conducting rods (9).

2. A corrugated pipe with an external compensator sealing device according to claim 1, characterized in that: The heat-conducting mechanism (11) is composed of a heat-conducting block (111) and a heat-conducting steel ball (112); the heat-conducting block (111) is arranged on the heat-conducting ring (10), and the heat-conducting steel ball (112) is rolled on the heat-conducting block (111); the heat-conducting steel ball (112) is in contact with and connected to the telescopic cylinder (2).

3. A corrugated pipe with an external compensator sealing device according to claim 2, characterized in that: The heat-conducting ring (10) is provided with a heat-conducting cavity (13) that matches the heat-conducting block (111), and the heat-conducting block (111) is slidably connected to the heat-conducting cavity (13), and a plurality of buffer springs (14) are fixedly connected between the heat-conducting block (111) and the inner wall of the heat-conducting cavity (13).

4. The corrugated pipe with an external compensator sealing device according to claim 1, characterized in that: The movement control mechanism (12) is composed of two magnetic rings (121), a corrugated telescopic sleeve (122) and a coil (123); the two magnetic rings (121) are slidably arranged between two heat-conducting rods (9), and the magnetic rings (121) are fixedly connected to the corresponding mounting plate (1) via a support rod (22); the corrugated telescopic sleeve (122) is sleeved on the outer wall of the telescopic tube (2); the corrugated telescopic sleeve (122) is fixedly arranged between the two heat-conducting rings (10), and the middle area of ​​the corrugated telescopic sleeve (122) is fixedly connected to the heat-conducting rod (9); and the coil (123) is wound around the corrugated telescopic sleeve (122).

5. The corrugated pipe with an external compensator sealing device according to claim 1, characterized in that: Both sides of the heat conducting rod (9) are slidably connected with linear bearings (15), and the linear bearings (15) are fixedly connected to the mounting plate (1).

6. The corrugated pipe with an external compensator sealing device according to claim 1, characterized in that: A plurality of thread grooves (16) are provided on both mounting plates (1), and the plurality of thread grooves (16) are distributed in a ring shape.

7. The corrugated pipe with an external compensator sealing device according to claim 4, characterized in that: A plurality of cams (17) are fixedly connected in a row on the magnetic ring (121) located on the left side, and a plurality of power generation mechanisms (18) cooperating with the cams (17) are arranged in an axial row on the mother cylinder (3). An annular semiconductor refrigeration sleeve (19) is embedded in the telescopic cylinder (2), and the annular semiconductor refrigeration sleeve (19) is connected in series with each power generation mechanism (18).

8. The corrugated pipe with an external compensator sealing device according to claim 7, characterized in that: The power generation mechanism (18) comprises a fixed block (181), a conductive cavity (182), a slider (183), a support block (184), a return spring (185), a vibration block (186) and a ceramic piezoelectric sheet (187); the fixed block (181) is fixedly arranged on the mother cylinder (3); the conductive cavity (182) is opened on the fixed block (181); the slider (183) is slidably connected to the conductive cavity (182); the support block (184) is fixedly arranged at the lower end of the slider (183); the slider (183) is The upper end of the conductive cavity (182) is fixedly connected to a spherical block (20) that cooperates with the cam (17), the support block (184) is fixedly connected to the inner bottom surface of the conductive cavity (182) through a plurality of return springs (185), the vibration block (186) is rotatably arranged on the support block (184), and the ceramic piezoelectric sheet (187) is embedded in the vibration block (186), the number of the vibration block (186) and the ceramic piezoelectric sheet (187) is multiple, and each of the ceramic piezoelectric sheets (187) is connected in series with the semiconductor refrigeration sleeve (19).

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