Multi-chamber high-efficiency titanium tube gas protection annealing furnace

Abstract

Provided is a multi-chamber high-efficiency titanium tube gas shielded annealing furnace, comprising a furnace body and a plurality of furnace tubes, the cross-sectional shapes of the furnace body and the furnace tubes are both square ring structures, a longitudinal guide and driving device for driving the longitudinal movement of the furnace body is provided at the bottom of the furnace body, a gas circulation pipe group connected to a gas source and used to fill the interior of the furnace tube with protective gas is provided on the furnace tube, and a transverse guide and driving device for driving the furnace tube to enter or move out of the furnace body after transverse movement is provided at the bottom of the furnace tube. The present invention adopts a multi-chamber titanium tube annealing furnace structure composed of a furnace body with a longitudinal movement function and a plurality of furnace tubes with transverse movement functions, solves the drawback that the furnace body of the multi-chamber annealing furnace is too long and difficult to control, improves the heating uniformity of the long tube at each position in the furnace tube by optimizing the shape of the furnace body and the furnace tube, and is provided on the furnace tube. A gas circulation pipe group for filling the interior of the furnace tube with protective gas is provided, thereby improving the heat conduction efficiency, the annealing efficiency and annealing quality of the long tube are improved, and the efficiency of the furnace tube entering and exiting the furnace body is high.

Description

Technical Field

[0001] The invention belongs to the technical field of annealing furnaces, and in particular relates to a multi-chamber high-efficiency titanium tube gas protection annealing furnace. Background Art

[0002] Annealing furnace is a heat treatment furnace, mainly used for annealing large carbon steel and alloy steel parts. Annealing furnaces include: trolley annealing furnace, box annealing furnace, bell annealing furnace, continuous bright annealing furnace and bell bright annealing furnace. Box annealing furnace is generally used for conventional heat treatment such as quenching, normalizing and annealing of titanium materials.

[0003] At present, most titanium metal tube annealing furnaces use vacuum annealing furnaces. During the annealing process, the furnace tubes in the vacuum furnace need to be continuously evacuated to ensure the annealing quality of the titanium tubes. However, since the outside world has a certain pressure on the vacuum-evacuated furnace tubes, in order to ensure the uniformity of pressure in each part of the furnace tubes and the shape of the furnace tubes, only a circular furnace tube circle can be used. During the vacuum retraction process of the circular furnace tubes, the titanium tubes placed in the furnace tubes are heated unevenly from the outside to the inside after the furnace tubes are heated. The heating temperatures of the titanium tubes at different positions are quite different, resulting in a long annealing insulation time and low annealing efficiency. In addition, the vacuum annealing equipment has a large investment, complex process equipment, and great difficulty in operation. The existing double-chamber annealing furnace uses a A double furnace chamber (furnace tube) structure with two entrances respectively located at the two ends of the furnace body is arranged in the length direction of the furnace body. By moving the furnace body, the furnace chamber (furnace tube) located in the front of the furnace body moving direction is placed in the furnace chamber at the corresponding end, and the titanium tube in the furnace chamber (furnace tube) is annealed. After the annealing is completed, the furnace body is moved in the opposite phase, and the furnace chamber (furnace tube) at the other end is placed in the furnace chamber at the corresponding end, and the titanium tube in the furnace chamber (furnace tube) is annealed, thereby heating and returning the titanium tubes in the furnace chambers (furnace tubes) at both ends in turn. With the above structure, there are not only the disadvantages of uneven heating of the titanium tubes in the furnace chamber (furnace tube), but also the problem of inconvenience in moving the furnace body due to its excessive length. Therefore, it is necessary to make improvements to the above problems. Summary of the invention

[0004] The technical problem solved by the present invention is as follows: a multi-chamber high-efficiency titanium tube gas shielded annealing furnace is provided, which adopts a multi-chamber titanium tube annealing furnace structure composed of a furnace body with a longitudinal movement function and a plurality of furnace tubes with a transverse movement function, solves the disadvantage that the furnace body of the multi-chamber annealing furnace is too long and difficult to operate, and improves the heating uniformity of the long tube at various positions in the furnace tube by optimizing the shapes of the furnace body and the furnace tube, and arranges a gas circulation tube group on the furnace tube for filling the inside of the furnace tube with shielding gas, thereby improving the heat conduction efficiency, improving the annealing efficiency and annealing quality of the long tube, and achieving high efficiency of the furnace tube entering and exiting the furnace body.

[0005] The technical solution adopted by the present invention is a multi-chamber high-efficiency titanium tube gas-shielded annealing furnace, comprising a furnace body and a plurality of furnace tubes arranged on the same side as the furnace mouth of the furnace body, the cross-sectional shapes of the furnace body and the furnace tubes are both square ring structures, the bottom of the furnace body is provided with a longitudinal guide and drive device for driving the longitudinal movement of the furnace body, the furnace tube is provided with a gas circulation pipe group connected with a gas source and used for filling protective gas into the furnace tube, and the bottom of the furnace tube is provided with a transverse guide and drive device for driving the furnace tube to move transversely into or out of the furnace body.

[0006] Among them, the longitudinal guide and drive device includes a guide component and a longitudinal drive device. The guide component is arranged under the furnace body. The guide component is adaptively connected to the longitudinal drive device arranged on the furnace body, and under the guiding action of the guide component, the longitudinal drive device drives the furnace body to move along the length direction of the guide component.

[0007] Furthermore, the guide assembly includes longitudinal guide rails and longitudinal rollers. A plurality of longitudinal guide rails arranged parallel to each other are laid under the furnace body along the width direction of the furnace body. A plurality of longitudinal rollers distributed at the bottom of the two long sides of the furnace body are connected to the longitudinal drive device and adapted to the longitudinal guide rails at corresponding positions.

[0008] Furthermore, the longitudinal movement drive device includes a longitudinal movement motor, a driving shaft and a driven shaft. A mounting seat is fixed on the long side wall of one side of the furnace body and the longitudinal movement motor is fixed on the mounting seat. The driving shaft and the driven shaft are rotatably installed on the bottom of the two long sides of the furnace body through bearing seats. A plurality of longitudinal movement rollers corresponding to and adapted to the positions of the longitudinal guide rails below are fixed on the driving shaft and the driven shaft. After the longitudinal movement motor drives the driving shaft to rotate through the chain transmission assembly, the furnace body can be moved along the length direction of the longitudinal guide rail.

[0009] Furthermore, the transverse guide and drive device includes a segmented guide assembly and a transverse drive device, the segmented guide assembly is arranged along the length direction of the furnace body and the furnace tube, one section of the segmented guide assembly is laid under the furnace tube and the other section is fixed to the inner bottom surface of the furnace body, and a transverse drive device connected to the furnace tube is provided outside the furnace mouth of the furnace body. Under the guiding action of the segmented guide assembly, the furnace tube is driven by the transverse drive device to move out of or into the furnace body along the length direction of the segmented guide assembly.

[0010] Furthermore, the segmented guiding assembly includes a transverse guide rail I, a transverse track II and a transverse roller. Two mutually parallel transverse guide rails I are laid on the inner bottom surface of the furnace body, and two transverse tracks II laid under the furnace tube are arranged at the same height as the two transverse guide rails I. A plurality of transverse rollers adapted to the two transverse guide rails I or the transverse guide rail I are installed on the bottom surface of the furnace tube, and the transverse rollers are moved along the length direction of the transverse guide rail I or the transverse track II under the drive of the transverse driving device.

[0011] Furthermore, the transverse driving device includes a transverse motor, a transmission shaft, a rack and a gear. The transmission shaft is rotatably supported on the outside of the furnace mouth of the furnace body through a bearing seat and is located below the segmented guide assembly. Racks are fixed on both sides of the bottom of the furnace tube and the racks are meshed with gears fixed at corresponding positions on the transmission shaft. The transverse motor is fixed to the outside of the furnace body. The transverse motor is connected through a transmission assembly connected to the transmission shaft, and the transverse motor drives the transmission shaft and the gear to rotate to realize the automatic entry or removal of the furnace tube from the furnace mouth of the furnace body.

[0012] Furthermore, the gas circulation pipe group includes an air inlet pipe and an air outlet pipe. An air inlet pipe with one end reaching the bottom of the pipe body and the other end extending from the bottom wall of the pipe mouth of the pipe body is laid on the inner bottom surface of the pipe body in the furnace pipe. The extended end of the air inlet pipe is connected with the gas source of the protective gas through a pipeline. The air outlet pipe is arranged on the top wall at the pipe mouth of the pipe body and is connected with the pipe body. The end of the air outlet pipe is connected with the lower end of the three-way joint, and the gas in the pipe body is discharged to the upper port of the three-way joint through the air outlet pipe. The side port of the three-way joint is provided with a protective gas detector.

[0013] Furthermore, the furnace tube includes a tube body and a tube cover. The inner bottom surface of the tube body is provided with a guide rail and roller assembly that is adaptably connected to a trolley equipped with a plurality of long tubes, and the trolley is guided by the guide rail and roller assembly to quickly push in or pull out the tube body. The tube cover is hinged at the tube mouth of the tube body, and thermal insulation cotton is fixed at the end of the tube mouth of the tube body. After the trolley is pushed into the interior of the tube body, the tube cover is fixed to the tube body by a lock.

[0014] The advantages of the present invention compared with the prior art are:

[0015] 1. This technical solution adopts a multi-chamber titanium tube annealing furnace structure consisting of a furnace body with longitudinal movement function and multiple furnace tubes with transverse movement function, which solves the problem that the multi-chamber annealing furnace body is too long and difficult to operate, greatly reduces the length of the furnace body, increases the number of furnace chambers, and improves the annealing efficiency of long tubes;

[0016] 2. This technical solution improves the heating uniformity of the long tube at each position in the furnace tube by optimizing the shape of the furnace body and the furnace tube, shortens the annealing heating time, and provides conditions for the annealing efficiency of the long tube;

[0017] 3. This technical solution provides a gas circulation pipe group on the furnace tube for filling the inside of the furnace tube with protective gas, which improves the heat conduction efficiency, improves the annealing efficiency and annealing quality of long tubes, and increases the efficiency of the furnace tube entering and exiting the furnace body;

[0018] 4. This technical solution sets a guide roller assembly between the pipe body and the material cart, which is conducive to the rapid entry and exit of the material cart with long pipes in and out of the pipe body, reduces the difficulty and work intensity of loading and unloading long pipes in the pipe body, and improves the loading and unloading efficiency of long pipes;

[0019] 5. This technical solution has a simple structure, novel design, high heat conduction efficiency, improved annealing quality and efficiency, and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a simplified structural diagram of the present invention;

[0021] Figure 2 This is a simplified structural diagram of the positional relationship between the longitudinal guide and drive device of the present invention and the furnace body and furnace tube;

[0022] Figure 3 A front view of the furnace tube provided with the gas circulation tube group of the present invention being installed into the furnace body;

[0023] Figure 4 It is a right side view of the furnace tube provided with the gas circulation tube group of the present invention being installed in the furnace body;

[0024] Figure 5 This is a simplified structural diagram of the transverse guide and drive device of the present invention. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-5 An embodiment of the present invention is described to clearly and completely describe the technical solution. Obviously, the described embodiment is only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present invention.

[0027] A multi-chamber high-efficiency titanium tube gas-shielded annealing furnace comprises a furnace body 1 and a plurality of furnace tubes 2 arranged on the same side of the furnace mouth of the furnace body 1, the cross-sectional shapes of the furnace body 1 and the furnace tubes 2 are both square ring structures, the bottom of the furnace body 1 is provided with a longitudinal guide and a driving device for driving the furnace body 1 to move longitudinally, the furnace tubes 2 are provided with a gas circulation pipe group connected with the gas source and used to fill the furnace tubes 2 with protective gas, and the bottom of the furnace tubes 2 is provided with a transverse guide and a driving device for driving the furnace tubes 2 to move transversely into or out of the furnace body 1; in the above structure, a multi-chamber titanium tube annealing furnace structure consisting of a furnace body 1 with a longitudinal movement function and a plurality of furnace tubes 2 with a transverse movement function is adopted, which solves the problem that the furnace body 1 of the multi-chamber annealing furnace is too long and difficult to operate, greatly reduces the length of the furnace body, increases the number of furnace chambers, and improves the annealing efficiency of long tubes; wherein, the longitudinal movement function of the furnace body The realization of the longitudinal movement guide and drive device provided at the bottom of the furnace body 1 is completed under the guidance and drive of the longitudinal movement guide and drive device; the realization of the lateral movement function of the furnace tube 2 is completed under the guidance and drive of the lateral movement guide and drive device provided at the bottom of the furnace tube 2; by optimizing the shape of the furnace body and the furnace tube, the furnace body 1 and the furnace tube 2 whose cross-sectional shapes are both square annular decoupling strands are adopted, so that the long tube 12 loaded into the furnace tube 2 is evenly heated, the uniformity of heating of the long tube at each position in the furnace tube is improved, and the annealing heating time is shortened. The heating time is shortened from about 12 hours of the previous vacuum annealing furnace to 6-8 hours, providing conditions for the annealing efficiency of the long tube 12; a gas circulation pipe group for filling the inside of the furnace tube 2 with protective gas is provided on the furnace tube 2, which improves the heat conduction efficiency of the heat inside the furnace tube 2, improves the annealing efficiency and annealing quality of the long tube 12, and the efficiency of the furnace tube 2 entering and exiting the furnace body is high;

[0028] The specific composition of the longitudinal guide and drive device is as follows: the longitudinal guide and drive device includes a guide component 3 and a longitudinal drive device 4, the guide component 3 is arranged below the furnace body 1, the guide component 3 is adaptively connected to the longitudinal drive device 4 arranged on the furnace body 1, and under the guiding action of the guide component 3, the longitudinal drive device 4 drives the furnace body 1 to move along the length direction of the guide component 3.

[0029] The guide assembly 3 is specifically as follows: the guide assembly 3 includes a longitudinal guide rail 3-1 and a longitudinal roller 3-2. A plurality of longitudinal guide rails 3-1 arranged in parallel with each other are laid below the furnace body 1 along the width direction of the furnace body 1. A plurality of longitudinal rollers 3-2 distributed at the bottom of the two long sides of the furnace body 1 are connected to the longitudinal drive device 4 and adapted to the longitudinal guide rail 3-1 at the corresponding position. The above structure provides guiding conditions for the longitudinal movement of the furnace body 1 and ensures the stability and reliability of the movement of the furnace body. When the furnace body 1 moves from a position corresponding to one of the furnace tubes 2 to a position corresponding to another furnace tube 2, it can be detected and controlled by a position switch, thereby ensuring the accuracy and reliability of the relative position of the furnace body 1 with the furnace tube 2 after the longitudinal movement, and ensuring that the furnace tube 2 is smoothly moved into or out of the furnace body 1;

[0030] The specific structure of the longitudinal movement drive device 4 is as follows: the longitudinal movement drive device 4 includes a longitudinal movement motor 4-1, a driving shaft 4-2 and a driven shaft 4-3. A mounting seat 7 is fixed on the long side wall of one side of the furnace body 1 and the longitudinal movement motor 4-1 is fixed on the mounting seat 7. The driving shaft 4-2 and the driven shaft 4-3 are rotatably installed on the bottom of the two long sides of the furnace body 1 through bearing seats. A plurality of longitudinal movement rollers 3-2 corresponding to and adapted to the positions of the longitudinal guide rails 3-1 below are fixed on the driving shaft 4-2 and the driven shaft 4-3. After the longitudinal movement motor 4-1 drives the driving shaft 4-2 to rotate through the chain transmission assembly, the furnace body 1 is moved along the length direction of the longitudinal guide rail 3-1.

[0031] The transverse guide and drive device is specifically as follows: the transverse guide and drive device includes a segmented guide component 5 and a transverse drive device 6, the segmented guide component 5 is arranged along the length direction of the furnace body 1 and the furnace tube 2, one section of the segmented guide component 5 is laid under the furnace tube 2 and the other section is fixed to the bottom surface of the furnace body 1, and a transverse drive device 6 connected to the furnace tube 2 is provided outside the furnace mouth of the furnace body 1. Under the guiding action of the segmented guide component 5, the furnace tube 2 is driven by the transverse drive device 6 to move out of or into the furnace body 1 along the length direction of the segmented guide component 5.

[0032] The specific structure of the segmented guide assembly 5 is as follows: the segmented guide assembly 5 includes a transverse guide rail I5-1, a transverse rail II5-2 and a transverse roller 5-3, two mutually parallel transverse guide rails I5-1 are laid on the bottom surface of the furnace body 1, and the two transverse rails II5-2 laid under the furnace tube 2 are arranged at the same height as the two transverse guide rails I5-1, and a plurality of transverse rollers 5-3 adapted to the two transverse guide rails I5-1 or the transverse guide rail I5-1 are installed on the bottom surface of the furnace tube 2, and the transverse rollers 5-3 are moved along the length direction of the transverse guide rail I5-1 or the transverse rail II5-2 under the drive of the transverse drive device 6.

[0033] The specific structure of the transverse driving device 6 is as follows: the transverse driving device 6 includes a transverse motor 6-1, a transmission shaft 6-2, a rack 6-3 and a gear 6-4. The transmission shaft 6-2 is rotatably supported on the outside of the furnace mouth of the furnace body 1 through a bearing seat 6-5, and is located below the segmented guide assembly 5. Racks 6-3 are fixed on both sides of the bottom of the furnace tube 2, and the racks 6-3 are meshed with the gears 6-4 fixed at the corresponding positions on the transmission shaft 6-2. The transverse motor 6-1 is fixed to the outside of the furnace body 1. The transverse motor 6-1 is connected through a transmission assembly connected to the transmission shaft 6-2, and the transverse motor 6-1 drives the transmission shaft 6-2 and the gear 6-4 to rotate, so that the furnace tube 2 automatically enters or moves out of the furnace mouth of the furnace body 1.

[0034] The specific structure of the gas circulation pipe group is as follows: the gas circulation pipe group includes an air inlet pipe 11 and an air outlet pipe 8. The inner bottom surface of the tube body 2-1 in the furnace tube 2 is provided with an air inlet pipe 11 with one end reaching the bottom of the tube body 2-1 and the other end extending from the bottom wall at the tube mouth of the tube body 2-1. The extended end of the air inlet pipe 11 is connected with the gas source of the protective gas through a pipeline. The air outlet pipe 8 is arranged on the top wall at the tube mouth of the tube body 2-1 and is connected with the tube body 2-1. The end of the air outlet pipe 8 is connected with the lower end of the three-way joint 9, and the gas in the tube body 2-1 is discharged through the air outlet pipe 8 to the upper port of the three-way joint 9. The side port of the three-way joint 9 is provided with a protective gas detector 10.

[0035] The specific structure and feeding structure of the furnace tube 2 are as follows: the furnace tube 2 comprises a tube body 2-1 and a tube cover 2-2. The inner bottom surface of the tube body 2-1 is provided with a guide rail roller assembly 14 which is adapted to be connected to a material cart 13 equipped with a plurality of long tubes 12, and the material cart 13 is guided by the guide rail roller assembly 14 to quickly push in or pull out the tube body 2-1. The tube cover 2-2 is hinged at the tube mouth of the tube body 2-1. A heat preservation cotton 2-3 is fixed at the tube mouth end of the tube body 2-1. After the material cart 13 is pushed into the tube body 2-1, the tube cover 2-2 is fixed to the tube body 2-1 by a lock buckle. In the above structure, by arranging the guide rail roller assembly 14 between the tube body 2-1 and the material cart 13, it is convenient for the material cart 13 equipped with the long tubes 12 to quickly enter and exit the tube body 2-1, thereby reducing the difficulty and work intensity of loading and unloading the long tubes 12 in the tube body 2-1 and improving the loading and unloading efficiency of the long tubes.

[0036] In the technical scheme, the long tube is annealed by gas protection, which is conducive to the formation of gas convection inside the furnace tube 2 after heat radiation, thereby accelerating the transfer of heat on the long tube 12; theoretically, several furnace tubes 2 can be arranged, which greatly increases the number of furnace chambers compared with the furnace tubes 2 previously arranged at both ends of the furnace body 1; the furnace tube 2 adopts a structure composed of a tube body 2-1 and a tube cover 2-2, and a heat-insulating cotton 2-3 is fixed at the end of the tube mouth of the tube body 2-1. After the tube cover 2-2 is closed, the heat-insulating cotton 2-3 is located between the tube cover 2-2 and the tank body 2-1, avoiding the rapid loss of protective gas and heat inside the tube body 2-1, and at the same time avoiding the unsafe hidden danger caused by the excessive temperature of the tube cover 2-2, and avoiding scalding of the operator; the structure is simple, the design is novel, the heat conduction efficiency is high, the annealing quality and efficiency are improved, and it has a high use value.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Multi-chamber high-efficiency titanium tube gas protection annealing furnace, characterized by: The invention comprises a furnace body (1) and a plurality of furnace tubes (2) arranged on the same side as a furnace opening of the furnace body (1); the cross-sectional shapes of the furnace body (1) and the furnace tubes (2) are both square ring structures; a longitudinal guide and driving device for driving the furnace body (1) to move longitudinally is provided at the bottom of the furnace body (1); a gas circulation pipe group connected to a gas source and used for filling the furnace tubes (2) with protective gas is provided on the furnace tubes (2); and a transverse guide and driving device for driving the furnace tubes (2) to move transversely and enter or move out of the furnace body (1) is provided at the bottom of the furnace tubes (2); The longitudinal guide and drive device comprises a guide assembly (3) and a longitudinal drive device (4); the guide assembly (3) is arranged below the furnace body (1); the guide assembly (3) is adaptively connected to the longitudinal drive device (4) arranged on the furnace body (1); and under the guiding action of the guide assembly (3), the longitudinal drive device (4) drives the furnace body (1) to move along the length direction of the guide assembly (3); The guide assembly (3) comprises a longitudinal guide rail (3-1) and a longitudinal transfer roller (3-2); a plurality of longitudinal guide rails (3-1) arranged parallel to each other are laid below the furnace body (1) along the width direction of the furnace body (1); a plurality of longitudinal transfer rollers (3-2) distributed at the bottom of two long sides of the furnace body (1) are connected to the longitudinal transfer drive device (4) and adapted to fit on the longitudinal guide rails (3-1) at corresponding positions; The longitudinal movement driving device (4) comprises a longitudinal movement motor (4-1), a driving shaft (4-2) and a driven shaft (4-3); a mounting seat (7) is fixed on a long side wall of one side of the furnace body (1) and the longitudinal movement motor (4-1) is fixed on the mounting seat (7); a driving shaft (4-2) and a driven shaft (4-3) are rotatably mounted on the bottom of the two long sides of the furnace body (1) through bearing seats; a plurality of longitudinal movement rollers (3-2) corresponding to and adapted to the positions of the longitudinal guide rails (3-1) below are fixed on the driving shaft (4-2) and the driven shaft (4-3); after the longitudinal movement motor (4-1) drives the driving shaft (4-2) to rotate through a chain transmission assembly, the furnace body (1) is moved along the length direction of the longitudinal guide rail (3-1).

2. The multi-chamber high-efficiency titanium tube gas protection annealing furnace according to claim 1 is characterized in that: The transverse guide and drive device comprises a segmented guide assembly (5) and a transverse drive device (6); the segmented guide assembly (5) is arranged along the length direction of the furnace body (1) and the furnace tube (2); one section of the segmented guide assembly (5) is laid below the furnace tube (2) and the other section is fixed to the inner bottom surface of the furnace body (1); a transverse drive device (6) connected to the furnace tube (2) is arranged outside the furnace mouth of the furnace body (1); under the guiding action of the segmented guide assembly (5), the furnace tube (2) is driven by the transverse drive device (6) to move out of or into the furnace body (1) along the length direction of the segmented guide assembly (5).

3. The multi-chamber high-efficiency titanium tube gas protection annealing furnace according to claim 2 is characterized in that: The segmented guide assembly (5) comprises a transverse guide rail I (5-1), a transverse rail II (5-2) and a transverse roller (5-3); two mutually parallel transverse guide rails I (5-1) are laid on the inner bottom surface of the furnace body (1); and two transverse rails II (5-2) laid below the furnace tube (2) are arranged at the same height as the two transverse guide rails I (5-1); a plurality of transverse rollers (5-3) adapted to the two transverse guide rails I (5-1) or the transverse guide rail I (5-1) are installed on the bottom surface of the furnace tube (2); and the transverse rollers (5-3) are moved along the length direction of the transverse guide rail I (5-1) or the transverse rail II (5-2) under the drive of the transverse drive device (6).

4. The multi-chamber high-efficiency titanium tube gas protection annealing furnace according to claim 3 is characterized in that: The transverse driving device (6) comprises a transverse motor (6-1), a transmission shaft (6-2), a rack (6-3) and a gear (6-4); the transmission shaft (6-2) is rotatably supported on the outside of the furnace opening of the furnace body (1) through a bearing seat (6-5) and is located below the segmented guide assembly (5); racks (6-3) are fixed on both sides of the bottom of the furnace tube (2), and the racks (6-3) are meshed with gears (6-4) fixed at corresponding positions on the transmission shaft (6-2); the transverse motor (6-1) is fixed to the outside of the furnace body (1); the transverse motor (6-1) is connected through a transmission assembly connected to the transmission shaft (6-2); and the transverse motor (6-1) drives the transmission shaft (6-2) and the gear (6-4) to rotate, so that the furnace tube (2) automatically enters or moves out of the furnace opening of the furnace body (1).

5. The multi-chamber high-efficiency titanium tube gas protection annealing furnace according to claim 1 is characterized in that: The gas circulation pipe group comprises an inlet pipe (11) and an outlet pipe (8). The inlet pipe (11) is laid on the inner bottom surface of the tube body (2-1) in the furnace tube (2). One end of the inlet pipe (11) is connected to the bottom of the tube body (2-1) and the other end extends from the bottom wall at the tube mouth of the tube body (2-1). The extended end of the inlet pipe (11) is connected to a gas source of protective gas through a pipeline. The outlet pipe (8) is arranged on the top wall at the tube mouth of the tube body (2-1) and is connected to the tube body (2-1). The end of the outlet pipe (8) is connected to the lower end of a three-way joint (9), and the gas in the tube body (2-1) is discharged through the outlet pipe (8) to the upper port of the three-way joint (9). A protective gas detector (10) is provided at the side port of the three-way joint (9).

6. The multi-chamber high-efficiency titanium tube gas protection annealing furnace according to any one of claims 1 to 5, characterized in that: The furnace tube (2) comprises a tube body (2-1) and a tube cover (2-2); the inner bottom surface of the tube body (2-1) is provided with a guide rail roller assembly (14) adapted to be connected to a trolley (13) equipped with a plurality of long tubes (12); the trolley (13) is guided by the guide rail roller assembly (14) to quickly push in or pull out the tube body (2-1); the tube cover (2-2) is hinged at the tube mouth of the tube body (2-1); a heat insulation cotton (2-3) is fixed at the end of the tube mouth of the tube body (2-1); and after the trolley (13) is pushed into the tube body (2-1), the tube cover (2-2) is fixed to the tube body (2-1) by a lock.

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