Fixing device of energy-saving heat exchanger

Abstract

The utility model discloses a fixing device of an energy-saving heat exchanger, and belongs to the technical field of energy-saving heat exchangers. The device is used for being installed between a heat exchanger connecting pipe and a flange of a flue gas moving pipe and comprises a gear ring arranged on the heat exchanger connecting pipe in a sleeving mode, a rotation limiting ring arranged on the flue gas moving pipe in a sleeving mode and a plurality of double-thread screws, the two ends of each double-thread screw are in threaded connection with a nut and a planetary gear respectively, and the planetary gears are meshed with the gear ring. The rotation limiting ring is matched with the nut, the gear ring is matched with the planetary gears, and the multiple planetary gears synchronously rotate on the double-thread screw by rotating the gear ring, so that when the double-thread screw is long, the multiple planetary gears can be conveniently and synchronously screwed into the double-thread screw and abut against a flange, and therefore the double-thread screw can be conveniently and rapidly screwed into the double-thread screw, and the multiple planetary gears can be conveniently and rapidly screwed into the double-thread screw and abut against the flange. And finally, the nuts only need to be tightened one by one, repeated tightening of the nuts is not needed, the disassembly and assembly efficiency is greatly improved, meanwhile, traditional flange connection can be used, and application and popularization are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of energy-saving heat exchangers, and more specifically, to a fixing device for energy-saving heat exchangers. Background Art

[0002] The use of energy-saving heat exchangers is direct, simple, fast, efficient, environmentally friendly and energy-saving. It is suitable for the waste heat recovery and utilization of gas-fired industrial kilns in various environments, especially solving the problem that the waste heat of various high-temperature industrial kilns is too high to be utilized. When the energy-saving heat exchanger recovers the heat in the kiln flue gas, the staff generally places the energy-saving heat exchanger in the flue, and the place with the highest temperature closest to the flue outlet. Because the flue gas contains dust, when the dusty flue gas enters the heat exchanger, the dust in the flue gas will adhere to the heat exchanger, affecting the heat exchange efficiency of the heat exchange tube. Therefore, the heat exchanger needs to be cleaned regularly. When cleaning the heat exchanger, it is generally necessary to separate the inlet and outlet ends of the heat exchanger from the flue gas moving pipe. The inlet and outlet ends of the heat exchanger and the flue gas moving pipe are generally connected with flanges. When dismantling, the two flanges cannot be quickly separated, which reduces the efficiency of the staff.

[0003] The document with prior art publication number CN 218469620 U provides a fixing device for an energy-saving heat exchanger. The device is provided with a positioning structure, a connector 1 and a connector 2, so that the smoke inlet and outlet ends of the heat exchanger can be quickly fixed or separated from the smoke duct, saving the time for workers to disassemble and assemble the heat exchanger and improving the work efficiency of the workers. The device is easy to operate. The workers only need to push the handle upward to separate the connector 1 and the connector 2. When the clamping rod is inserted into the inner cavity of the rectangular groove, when the round hole on the clamping rod moves to the bottom of the fixing rod, the fixing rod can penetrate the round hole under the action of the rebound force of the spring 2, and the connector 1 and the connector 2 are quickly fixed together.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the device is in use, the connection end of the flue gas inlet and outlet of the heat exchanger and the flue gas pipe is different from the traditional flange connection, which means that if the traditional flange type is to be fixed using the device, the flange needs to be switched, which reduces the replacement efficiency, and the use of the device is limited by the positioning structure, the structure of the connector one and the connector two, which is not conducive to promotion and use.

[0005] In view of this, we propose a fixing device for an energy-saving heat exchanger. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the present application is to provide a fixing device for an energy-saving heat exchanger, which solves the technical problems in the above-mentioned background technology, realizes the rapid disassembly and assembly of the traditional flange connection, improves the disassembly and assembly efficiency, and is conducive to the technical effect of popularization and use.

[0008] 2. Technical solution

[0009] The technical solution of the present application provides a fixing device for an energy-saving heat exchanger, which is used to be installed between the flanges of the heat exchanger connecting pipe and the flue gas moving pipe, and includes: a gear ring sleeved on the heat exchanger connecting pipe, a rotation limiting ring sleeved on the flue gas moving pipe, and a plurality of double-headed screws, wherein the two ends of the double-headed screw are respectively threadedly connected with nuts and planetary gears, the planetary gears are meshed with the gear ring, and the nuts and the rotation limiting rings are removable.

[0010] By adopting the above technical solution, after the flange of the heat exchanger connecting pipe is connected to the flue gas moving pipe, the double-headed screw is then inserted into the hole of the flange, and the nut is screwed to the end of the double-headed screw close to the limit ring, the planetary gear is threaded at the other end, and then multiple nuts are clamped on the limit ring, the multiple planetary gears are rotated to adjust, the gear ring is axially moved and aligned with the multiple planetary gear cores. At this time, the gear ring is rotated clockwise to make the multiple planetary gears approach the direction of the nut and fit the flange, and finally the nuts are tightened one by one by turning clockwise.

[0011] As an optional solution to the technical solution of the present application document, the inner wall of the rotation limiting ring is annularly distributed with a plurality of grooves adapted to the nuts.

[0012] By adopting the above technical solution, the nut is rotated to make the nut correspond to the slot, and the limiting ring is moved axially so that multiple nuts are inserted into the slot. Then, by rotating the gear ring, multiple nuts can be prevented from rotating with the double-headed screw.

[0013] As an optional solution of the technical solution of the present application document, one side of the gear ring is rotatably connected to a forward handle, and the other side is rotatably connected to a reverse handle.

[0014] By adopting the above technical solution, the lower ends of the forward handle and the reverse handle are rotatably connected to the gear ring shaft, and the gear ring is rotated clockwise by the forward handle, and counterclockwise by the reverse handle.

[0015] As an optional solution of the technical solution of the present application document, storage grooves are symmetrically opened on both sides of the gear ring, and the forward handle and the reverse handle are both rotatably arranged in the storage grooves.

[0016] By adopting the above technical solution, when the forward handle and the reverse handle are not in use, the forward handle and the reverse handle can be stored in the storage groove.

[0017] As an optional solution to the technical solution of the present application document, the forward handle and the reverse handle are both magnetically attracted to the inner wall of the storage slot.

[0018] By adopting the above technical solution, when the forward handle and the reverse handle are not in use, the forward handle and the reverse handle can be stored in the storage groove.

[0019] As an optional solution to the technical solution of the present application document, the inner diameters of the rotation limiting ring and the gear ring are both larger than the outer diameter of the flange.

[0020] By adopting the above technical solution, the inner diameters of the limit ring and the gear ring are larger than the outer diameter of the flange, so as to facilitate the installation of the limit ring and the gear ring. It is worth noting that the nut and the planetary gear both protrude from the edge of the flange to ensure the fit between the nut and the limit ring, and the fit between the gear ring and the planetary gear.

[0021] 3. Beneficial effects

[0022] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0023] 1. The present application cooperates with the limiting ring and the nut, and the ring gear and the planetary gear, and rotates the ring gear to make multiple planetary gears rotate synchronously on the double-headed screw. When the double-headed screw is long, it is convenient to quickly and synchronously screw multiple planetary gears onto the double-headed screw and abut against the flange. Finally, it is only necessary to tighten the nuts one by one, without repeatedly tightening the nuts many times, which greatly improves the efficiency of disassembly and assembly. At the same time, it can be used for traditional flange connections, which is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a fixing device for an energy-saving heat exchanger disclosed in a preferred embodiment of the present application;

[0025] Figure 2 A fixing device for an energy-saving heat exchanger disclosed in a preferred embodiment of the present application Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 3 A schematic diagram of a rotation-limiting ring structure of a fixing device for an energy-saving heat exchanger disclosed in a preferred embodiment of the present application;

[0027] Figure 4 A schematic diagram of a gear ring structure of a fixing device for an energy-saving heat exchanger disclosed in a preferred embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of a double-headed screw, nut and planetary gear structure of a fixing device for an energy-saving heat exchanger disclosed in a preferred embodiment of the present application;

[0029] Explanation of the numbers in the figure: 1. Double-headed screw; 101. Nut; 102. Planetary gear; 2. Ring gear; 201. Storage groove; 202. Forward handle; 203. Reverse handle; 3. Limiting ring; 301. Slot; 4. Heat exchanger connecting pipe; 5. Flue gas moving pipe; 6. Flange. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] A fixing device for an energy-saving heat exchanger is used to be installed between a flange 6 of a heat exchanger connecting pipe 4 and a flue gas moving pipe 5, comprising: a gear ring 2 sleeved on the heat exchanger connecting pipe 4, a rotation limiting ring 3 sleeved on the flue gas moving pipe 5, and a plurality of double-headed screws 1, wherein the two ends of the double-headed screw 1 are respectively threadedly connected with a nut 101 and a planetary gear 102, the planetary gear 102 is meshed with the gear ring 2, and the nut 101 and the rotation limiting ring 3 are detachable.

[0032] Reference Figure 1-Figure 5 , after docking the heat exchanger connecting pipe 4 with the flange 6 of the flue gas moving pipe 5, then insert the double-headed screw 1 into the hole of the flange 6, and screw the nut 101 to the end of the double-headed screw 1 close to the limiting ring 3, and the planetary gear 102 is threadedly connected to the other end, and then multiple nuts 101 are clamped on the limiting ring 3, and the multiple planetary gears 102 are rotated to adjust the multiple planetary gears 102, and the gear ring 2 is axially moved and aligned with the cores of the multiple planetary gears 102. At this time, rotate the gear ring 2 clockwise so that the multiple planetary gears 102 are close to the direction of the nut 101 and fit the flange 6, and finally turn the nuts 101 clockwise one by one to tighten them.

[0033] The inner wall of the rotation limiting ring 3 is annularly provided with a plurality of slots 301 adapted to the nuts 101 .

[0034] Reference Figure 2 and Figure 3 , rotate the nut 101 and make the nut 101 correspond to the slot 301, axially move the limiting ring 3, so that multiple nuts 101 are inserted into the slot 301, and then by rotating the gear ring 2, multiple nuts 101 can be prevented from rotating with the double-headed screw 1.

[0035] One side of the gear ring 2 is rotatably connected to a forward handle 202 , and the other side is rotatably connected to a reverse handle 203 .

[0036] Reference Figure 4 The lower ends of the forward handle 202 and the reverse handle 203 are both rotatably connected to the gear ring 2 axis, so that the gear ring 2 can be rotated clockwise through the forward handle 202 and counterclockwise through the reverse handle 203.

[0037] Receiving grooves 201 are symmetrically provided on both sides of the gear ring 2 , and both a forward handle 202 and a reverse handle 203 are rotatably arranged in the receiving grooves 201 .

[0038] Reference Figure 4 When the forward handle 202 and the reverse handle 203 are not in use, the forward handle 202 and the reverse handle 203 can be stored in the storage groove 201.

[0039] Both the forward handle 202 and the reverse handle 203 are magnetically attracted to the inner wall of the storage slot 201 .

[0040] Magnetic plates are fixed to the upper surfaces of the forward handle 202 and the reverse handle 203 , and the magnetic plates can be fixed to the inner wall of the storage slot 201 by magnetic attraction to prevent the forward handle 202 and the reverse handle 203 from falling off after being stored in the storage slot 201 .

[0041] The inner diameters of the rotation limiting ring 3 and the gear ring 2 are both larger than the outer diameter of the flange 6 .

[0042] The inner diameters of the limit ring 3 and the ring gear 2 are larger than the outer diameter of the flange 6 to facilitate the installation of the limit ring 3 and the ring gear 2. It is worth noting that the nut 101 and the planetary gear 102 protrude from the edge of the flange 6 to ensure the fit between the nut 101 and the limit ring 3, and the fit between the ring gear 2 and the planetary gear 102.

[0043] Working principle: During installation, the limit ring 3 is sleeved on the flue gas moving pipe 5, the gear ring 2 is sleeved on the heat exchanger connecting pipe 4, and then the two flanges 6 are connected, and the double-headed screw 1 is inserted into the hole of the flange 6. The nut 101 is threadedly connected to the end of the double-headed screw 1 close to the limit ring 3, and the planetary gear 102 is threadedly connected to the other end of the double-headed screw 1. The adjustment nut 101 is rotated to correspond to the slot 301, and the limit ring 3 is moved axially. Multiple nuts 101 are clamped on the limit ring 3, and then multiple planetary gears 102 are rotated and adjusted to make the planetary gears 102 mesh with the gear ring 2. The gear ring 2 is rotated clockwise by turning the handle 202, so that multiple planetary gears 102 are rotated clockwise and fit with the flange 6 on the right side. Finally, the limit ring 3 is removed, and then the nuts 101 are tightened one by one with a wrench;

[0044] During disassembly, first loosen the nuts 101 one by one using a wrench, then insert multiple nuts 101 into the limiting ring 3, and finally rotate the ring gear 2 counterclockwise using the reverse handle 203 to make the planetary gear 102 rotate and move away from the flange 6 until it falls off from the double-headed screw 1, thereby achieving quick disassembly.

Claims

1. A fixing device for an energy-saving heat exchanger, used for being installed between a heat exchanger connecting pipe (4) and a flange (6) of a flue gas moving pipe (5), characterized in that: include: A gear ring (2) sleeved on a heat exchanger connecting pipe (4), a rotation limiting ring (3) sleeved on a flue gas moving pipe (5), and a plurality of double-headed screws (1); the two ends of the double-headed screws (1) are respectively threadedly connected with nuts (101) and planetary gears (102); the planetary gears (102) are meshed with the gear ring (2); and the nuts (101) and the rotation limiting ring (3) are detachable.

2. The fixing device of an energy-saving heat exchanger according to claim 1, characterized in that: The inner wall of the rotation limiting ring (3) is provided with a plurality of slots (301) adapted to the nuts (101) distributed in an annular manner.

3. The fixing device of an energy-saving heat exchanger according to claim 1, characterized in that: One side of the gear ring (2) is rotatably connected to a forward handle (202), and the other side is rotatably connected to a reverse handle (203).

4. The fixing device of an energy-saving heat exchanger according to claim 3 is characterized in that: Receiving grooves (201) are symmetrically provided on both sides of the gear ring (2), and the forward handle (202) and the reverse handle (203) are both rotatably arranged in the receiving grooves (201).

5. The fixing device for an energy-saving heat exchanger according to claim 4, characterized in that: The forward handle (202) and the reverse handle (203) are both magnetically attracted to the inner wall of the storage slot (201).

6. The fixing device for an energy-saving heat exchanger according to claim 1, characterized in that: The inner diameters of the rotation limiting ring (3) and the gear ring (2) are both larger than the outer diameter of the flange (6).

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