Double-P radiant tube heating device

Abstract

The utility model relates to the technical field of radiant tubes, in particular to a double-P radiant tube heating device which comprises a double-P radiant tube body, a burner is installed at the bottom end of the double-P radiant tube body, a support is installed on the outer side of the bottom end of the double-P radiant tube body, and fixing columns are inserted into the left end and the right end of the support respectively. The interior of the support is fixedly connected with a fixing column through a quick release mechanism, a shock absorber is fixedly installed at the top of the fixing column, a first fixing sleeve is fixedly installed at the top end of the shock absorber, reinforcing rods are fixedly installed on the inner sides of the two ends of the double-P radiant tube body, and second fixing sleeves are fixedly installed at the two ends of each reinforcing rod. A through hole is formed in the position, corresponding to the double-P radiant tube body, in the support, and a heat insulation sleeve is fixedly installed on the inner side of the through hole, through the design, the splicing efficiency is improved, the strength of the double-P radiant tube body is improved, and the situation of bending deformation in the transferring process is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of radiant tube technology, specifically to a double-P radiant tube heating device. Background Technology

[0002] Radiant tube heating devices are widely used in the field of non-oxidizing heat treatment. Among them, straight-sleeved radiant tubes and W-type radiant tubes are the most widely used. Due to the high temperature accuracy requirements of the heat treatment process, most straight-sleeved and W-type radiant tube heating devices adopt pulse combustion control. Each heating device is equipped with a series of auxiliary equipment such as a combustion controller, flame detector, automatic shut-off valve, and manual valve. However, the straight-sleeved radiant tube is limited by the radiation area, and the W-type radiant tube is limited by the requirement for uniform temperature at both ends. Therefore, the burner power should not be too high. A heat treatment furnace requires a large number of burners and auxiliary equipment, resulting in very high investment costs.

[0003] A search revealed CN109654495B, a radiant tube heating device comprising a burner and a double-P type radiant tube. The double-P type radiant tube includes a central tube, two side tubes, a three-way tube, and a four-way tube. One end of the central tube is connected to one end of the two side tubes via the three-way tube. Three ports of the four-way tube are respectively connected to the other ends of the central tube and the two side tubes, with the remaining port connected to the burner. The nozzle's spray direction is coaxial with the central tube. The burner includes a gas pipe, a head, and a combustion chamber. Both the combustion chamber and the head have a constricted structure. The head is located at the burner's outlet end. The combustion chamber passes through the middle of the head, and an annular seam is formed between the outer surface of the combustion chamber and the constricted structure of the head. The constricted structure of the combustion chamber and the constricted structure of the head combine to form a two-stage guide.

[0004] The aforementioned device, while significantly reducing investment costs by configuring high-power burners, can also effectively lower the combustion temperature inside the radiant tube, improve the uniformity of tube wall temperature, and achieve low NOx emissions. However, during the transportation and installation of the radiant tube, it is easy for the tube body to collide with the outside, which can easily cause the tube body to bend and deform. Furthermore, when the radiant tube is in use, the support connection between it and the base is too thin, which can easily lead to breakage at the connection end. In addition, the structures that generally provide auxiliary support are too complicated to install, which affects the efficiency of its assembly.

[0005] Therefore, it is of great importance to design a double-P radiant tube heating device to solve the above-mentioned defects. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model designs a double-P radiant tube heating device. This device aims to solve the technical problems of double-P radiant tubes being prone to collisions with external objects during transportation and installation, which can easily cause bending deformation or even damage to the tube body, as well as low assembly efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A double-P radiant tube heating device includes a double-P radiant tube body, a burner installed at the bottom end of the double-P radiant tube body, a support installed on the outer side of the bottom end of the double-P radiant tube body, and fixing columns inserted into both ends of the support. The inside of the support is fixedly connected to the fixing columns through a quick-release mechanism. A vibration damper is fixedly installed on the top of the fixing column, and a first fixing sleeve is fixedly installed on the top of the vibration damper. Reinforcing rods are fixedly installed on the inner sides of both ends of the double-P radiant tube body, and second fixing sleeves are fixedly installed on both ends of the reinforcing rods.

[0009] As a preferred embodiment of this utility model, a perforation is provided inside the support at a position corresponding to the main body of the double P radiant tube, and a heat insulation sleeve is fixedly installed on the inner side of the perforation.

[0010] As a preferred embodiment of this utility model, the quick-release mechanism includes locking pins slidably connected to both ends of the support. An insertion hole is provided inside the support at a position corresponding to the fixed pin. A locking hole is provided inside the fixed pin at a position corresponding to the locking pin. A movable plate is fixedly connected to one end of each of the two sets of locking pins. A spring is movably installed inside the support on one side opposite to the two sets of movable plates.

[0011] As a preferred embodiment of this utility model, a protective plate is fixedly connected to the outer side of the support at a position corresponding to the movable plate, and the interior of the movable plate is slidably connected to the protective plate through a movable through groove.

[0012] As a preferred embodiment of this utility model, a locking screw is installed between the two sets of movable plates. One end of the locking screw is movably connected to one set of movable plates, and the other end of the locking screw is threadedly connected to the other set of movable plates through a threaded sleeve, and the threaded sleeve is rotatably connected to the movable plate.

[0013] As a preferred embodiment of this utility model, both the first fixed sleeve and the second fixed sleeve are composed of a connecting sleeve and an opening and closing sleeve. The opening and closing sleeve is hinged to one end of the connecting sleeve, and a locking stud is rotatably connected to one end of the connecting sleeve. A locking groove is provided at the position corresponding to the locking stud on the opening and closing sleeve, and a locking cap is threaded to the end of the locking stud away from the connecting sleeve.

[0014] As a preferred embodiment of this utility model, the reinforcing rod consists of two sets of connecting rods and a connecting cylinder. The connecting cylinder is threaded between the two sets of connecting rods, and two sets of operating handles are symmetrically connected to the outer side of the connecting cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, through the coordinated design of the manufacturing, fixing column, quick-release mechanism, vibration damper and first fixing sleeve, when the support is installed at the bottom of the double P radiant tube body, the two sets of first fixing sleeves are first installed and fixed at both ends of the double P radiant tube body respectively. Then, the two sets of movable plates are moved relative to each other. The movable plates drive the two sets of locking columns to move relative to each other to make room so that the bottom end of the fixing column can be inserted into the inside of the insertion hole. After the fixing column is inserted into the inside of the insertion hole, the movable plate is reset so that the locking column is inserted into the inside of the locking hole to fix the fixing column. This allows the support to be quickly installed and fixed at the bottom of the double P radiant tube body, which not only improves the assembly efficiency, but also allows the vibration damper to be used for vibration protection when the double P radiant tube body is transported. At the same time, it strengthens the bottom of the double P radiant tube body when it is in use.

[0017] 2. In this utility model, through the cooperative design of the reinforcing rod and the second fixing sleeve, when the double P radiant tube body is transported, the overall length of the reinforcing rod is first shortened by rotating the connecting cylinder with the operating handle. Then, the second fixing sleeve at one end is installed and fixed on the outside of the double P radiant tube body. Then, the other set of second fixing sleeves is inserted into the inside of the double P radiant tube body and opened. Then, the connecting cylinder is rotated to extend the overall length of the reinforcing rod. Finally, the other set of second fixing sleeves is installed and fixed. The inside of the double P radiant tube body is reinforced by the two sets of reinforcing rods. They can be removed when the double P radiant tube body is used, thereby ensuring the strength of the double P radiant tube body and effectively avoiding bending and deformation during transportation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the support structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the quick-release mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixed column structure of this utility model.

[0023] In the diagram: 1. Double P radiant tube body; 2. Burner; 3. Support; 301. Perforation; 302. Insulation sleeve; 4. Fixing post; 5. Quick release mechanism; 501. Locking post; 502. Insertion hole; 503. Locking hole; 504. Movable plate; 505. Spring; 506. Protective plate; 507. Through groove; 508. Locking screw; 509. Threaded sleeve; 6. Vibration damper; 7. First fixing sleeve; 701. Connecting sleeve; 702. Opening and closing sleeve; 703. Locking stud; 704. Locking groove; 705. Locking cap; 8. Reinforcing rod; 801. Connecting rod; 802. Connecting cylinder; 803. Operating handle; 9. Second fixing sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figures 1-5 This utility model provides a technical solution:

[0026] A double-P radiant tube heating device includes a double-P radiant tube body 1, a burner 2 installed at the bottom end of the double-P radiant tube body 1, a support 3 installed on the outer side of the bottom end of the double-P radiant tube body 1, a fixing post 4 inserted into both the left and right ends of the support 3, the inside of the support 3 being fixedly connected to the fixing post 4 through a quick-release mechanism 5, a vibration damper 6 fixedly installed on the top of the fixing post 4, a first fixing sleeve 7 fixedly installed on the top of the vibration damper 6, a reinforcing rod 8 fixedly installed on the inner side of both ends of the double-P radiant tube body 1, and a second fixing sleeve 9 fixedly installed on both ends of the reinforcing rod 8.

[0027] First, a perforation 301 is provided inside the support 3 at a position corresponding to the double P radiant tube body 1. A heat insulation sleeve 302 is fixedly installed inside the perforation 301. The double P radiant tube body 1 is inserted into the support 3 through the perforation 301. The heat insulation sleeve 302, the first fixing sleeve 7 and the second fixing sleeve 9 are all made of heat insulation material, thereby avoiding the impact on the double P radiant tube body 1 during use.

[0028] Furthermore, the quick-release mechanism 5 includes locking pins 501 slidably connected to both ends of the support 3. An insertion hole 502 is provided inside the support 3 at a position corresponding to the fixed pin 4. A locking hole 503 is provided inside the fixed pin 4 at a position corresponding to the locking pin 501. A movable plate 504 is fixedly connected to one end of each of the two sets of locking pins 501. Springs 505 are movably installed inside the support 3 on opposite sides of the two sets of movable plates 504. When the support 3 is installed at the bottom end of the double-P radiant tube body 1, the two sets of first fixing sleeves 7 are first installed and fixed to both ends of the double-P radiant tube body 1, and then the two sets of movable plates 504 are moved relative to each other. The movable plate 504 drives the two sets of locking pins 501 to move relative to each other to create space, so that the bottom end of the fixing pin 4 can be inserted into the socket 502. After the fixing pin 4 is inserted into the socket 502, the movable plate 504 is reset, so that the locking pin 501 is inserted into the locking hole 503 to fix the fixing pin 4. This allows the support 3 to be quickly installed and fixed at the bottom end of the double P radiant tube body 1, which not only improves the assembly efficiency, but also allows the vibration damper 6 to be used for vibration reduction and protection when the double P radiant tube body 1 is transported. At the same time, the bottom end of the double P radiant tube body 1 is reinforced when it is in use, thereby improving the bottom end strength of the double P radiant tube body 1.

[0029] Then, a protective plate 506 is fixedly connected to the outer side of the support 3 at the position corresponding to the movable plate 504. The interior of the movable plate 504 is slidably connected to the protective plate 506 through the movable channel 507. The protective plate 506 protects the moving part of the movable plate 504 to prevent external impurities from entering and affecting the movement. At the same time, the movable plate 504 can move normally through the movable channel 507.

[0030] Furthermore, a locking screw 508 is installed between the two sets of movable plates 504. One end of the locking screw 508 is movably connected to one set of movable plates 504, and the other end of the locking screw 508 is threadedly connected to the other set of movable plates 504 through a threaded sleeve 509. The threaded sleeve 509 is rotatably connected to the movable plates 504. When operating the two sets of movable plates 504, rotating the locking screw 508, connected by the threaded sleeve 509, drives one set of movable plates 504 to move, while the other end of the locking screw 508 drives the other set of movable plates 504 to move accordingly, thus synchronously driving the two sets of movable plates 504 to move. At the same time, when fixing the fixed post 4 later, simply reverse the locking screw 508 to loosen the two sets of movable plates 504, and use the locking post 501 to quickly fix the fixed post 4.

[0031] Secondly, both the first fixing sleeve 7 and the second fixing sleeve 9 are composed of a connecting sleeve 701 and an opening and closing sleeve 702. The opening and closing sleeve 702 is hinged to one end of the connecting sleeve 701. A locking stud 703 is rotatably connected to one end of the connecting sleeve 701. A locking groove 704 is provided at the position corresponding to the locking stud 703 in the opening and closing sleeve 702. A locking cap 705 is threaded to the end of the locking stud 703 away from the connecting sleeve 701. When the first fixing sleeve 7 and the second fixing sleeve 9 are installed on the outside of the double P radiant tube body 1, the locking cap 705 is loosened first to release the locking stud 703. Then, the locking stud 703 is rotated to move it out of the locking groove 704, which opens the opening and closing sleeve 702. Then, the connecting sleeve 701 is released from the outside of the double P radiant tube body 1, and the opening and closing sleeve 702 is closed and fixed, so that the installation and fixing can be carried out quickly.

[0032] Finally, the reinforcing rod 8 consists of two sets of connecting rods 801 and a connecting cylinder 802. The connecting cylinder 802 is threaded between the two sets of connecting rods 801. Two sets of operating handles 803 are symmetrically connected to the outside of the connecting cylinder 802. When the double P radiant tube body 1 is transported, the connecting cylinder 802 is first rotated by the operating handle 803 to shorten the overall length of the reinforcing rod 8. Then, the second fixing sleeve 9 at one end is installed and fixed on the outside of the double P radiant tube body 1. Then, the other set of second fixing sleeves 9 is inserted into the inside of the double P radiant tube body 1 and opened. Then, the connecting cylinder 802 is rotated to extend the overall length of the reinforcing rod 8. Finally, the other set of second fixing sleeves 9 is installed and fixed. The inside of the double P radiant tube body 1 is reinforced by the two sets of reinforcing rods 8. The reinforcing rods 8 can be removed when the double P radiant tube body 1 is used, thus ensuring the strength of the double P radiant tube body 1 and effectively avoiding bending and deformation during transport.

[0033] In this embodiment, the specific implementation scenario is as follows: When installing the support 3 at the bottom end of the double P radiant tube body 1, firstly, two sets of first fixing sleeves 7 are respectively installed and fixed at both ends of the double P radiant tube body 1. Then, the two sets of movable plates 504 are moved relative to each other. The movable plates 504 drive the two sets of locking pins 501 to move relative to each other to make room, so that the bottom end of the fixing pin 4 can be inserted into the interior of the insertion hole 502. Then, after the fixing pin 4 is inserted into the interior of the insertion hole 502, the movable plate 504 is reset, so that the locking pin 501 is inserted into the interior of the locking hole 503 to fix the fixing pin 4. This allows the support 3 to be quickly installed and fixed at the bottom end of the double P radiant tube body 1, which not only improves the assembly efficiency, but also allows the vibration damper 6 to be used for vibration reduction and protection when the double P radiant tube body 1 is transported. At the same time, the double P radiant tube body 1 can be quickly installed and fixed at the bottom end of the double P radiant tube body 1. When the body 1 is in use, its bottom end is reinforced. During the transfer of the double P radiant tube body 1, the overall length of the reinforcing rod 8 is shortened by first rotating the connecting cylinder 802 through the operating handle 803. Then, the second fixing sleeve 9 at one end is installed and fixed on the outside of the double P radiant tube body 1. Then, the other set of second fixing sleeves 9 is inserted into the inside of the double P radiant tube body 1 and opened. Then, the connecting cylinder 802 is rotated to extend the overall length of the reinforcing rod 8. Finally, the other set of second fixing sleeves 9 is installed and fixed. The inside of the double P radiant tube body 1 is reinforced by the two sets of reinforcing rods 8. The double P radiant tube body 1 can be removed when it is in use. The whole operation process is simple and convenient. This utility model not only improves the assembly efficiency but also improves the strength of the double P radiant tube body 1, effectively avoiding bending and deformation during transfer.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-P radiant tube heating device, comprising a double-P radiant tube body (1), characterized in that: A burner (2) is installed at the bottom end of the double P radiant tube body (1). A support (3) is installed on the outer side of the bottom end of the double P radiant tube body (1). A fixing column (4) is inserted into both the left and right ends of the support (3). The inside of the support (3) is fixedly connected to the fixing column (4) through a quick-release mechanism (5). A vibration damper (6) is fixedly installed on the top of the fixing column (4). A first fixing sleeve (7) is fixedly installed on the top of the vibration damper (6). A reinforcing rod (8) is fixedly installed on the inner side of both ends of the double P radiant tube body (1). A second fixing sleeve (9) is fixedly installed on both ends of the reinforcing rod (8).

2. The double-P radiant tube heating device according to claim 1, characterized in that: A perforation (301) is provided inside the support (3) at a position corresponding to the body (1) of the double P radiant tube, and a heat insulation sleeve (302) is fixedly installed on the inner side of the perforation (301).

3. The double-P radiant tube heating device according to claim 1, characterized in that: The quick-release mechanism (5) includes locking pins (501) slidably connected to both ends of the support (3). The support (3) has a socket (502) at a position corresponding to the fixed pin (4). The fixed pin (4) has a locking hole (503) at a position corresponding to the locking pin (501). A movable plate (504) is fixedly connected to one end of each of the two sets of locking pins (501). A spring (505) is movably installed inside the support (3) on one side opposite to the two sets of movable plates (504).

4. The double-P radiant tube heating device according to claim 3, characterized in that: A protective plate (506) is fixedly connected to the outer side of the support (3) at a position corresponding to the movable plate (504). The interior of the movable plate (504) is slidably connected to the protective plate (506) through a movable through groove (507).

5. A double-P radiant tube heating device according to claim 3, characterized in that: A locking screw (508) is installed between the two sets of movable plates (504). One end of the locking screw (508) is movably connected to one set of movable plates (504), and the other end of the locking screw (508) is threadedly connected to the other set of movable plates (504) through a threaded sleeve (509). The threaded sleeve (509) is rotatably connected to the movable plate (504).

6. The double-P radiant tube heating device according to claim 1, characterized in that: Both the first fixed sleeve (7) and the second fixed sleeve (9) are composed of a connecting sleeve (701) and an opening and closing sleeve (702). The opening and closing sleeve (702) is hinged to one end of the connecting sleeve (701). A locking stud (703) is rotatably connected to one end of the connecting sleeve (701). A locking groove (704) is provided at the position corresponding to the locking stud (703) of the opening and closing sleeve (702). A locking cap (705) is threaded to the end of the locking stud (703) away from the connecting sleeve (701).

7. The double-P radiant tube heating device according to claim 1, characterized in that: The reinforcing rod (8) consists of two sets of connecting rods (801) and a connecting cylinder (802). The connecting cylinder (802) is threaded between the two sets of connecting rods (801), and two sets of operating handles (803) are symmetrically connected to the outside of the connecting cylinder (802).

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