A rotating joint deviation rectifying device for a sheet drying machine

Abstract

The utility model relates to a kind of sheet dryer rotating joint deviation rectifying device, its structure is: rotating joint includes joint main body, steam inlet, cooling water outlet and heat exchange equipment interface;Wherein steam inlet and cooling water outlet are respectively connected with the steam pipeline and cooling water pipeline of vertical arrangement by flange plate;Shell is equipped on the outer periphery of joint main body, force point is equipped on shell, fixed point is equipped outside rotating joint, spring is equipped between force point and fixed point;Adjusting tension device is respectively equipped in one end of spring, the force that adjusted spring applies to shell is transmitted to joint main body, and balanced with the total gravity of joint main body and shell.The deviation rectifying device uses the combined action of tension of spring group and supporting force, effectively reduces the subsidence phenomenon of rotating joint, guarantees the coaxiality of rotating joint inner tube and outer tube.

Description

Technical Field

[0001] This utility model relates to a rotary joint correction device for a thin-plate drying machine, belonging to the technical field of tobacco production equipment. Background Technology

[0002] Tobacco production requires drying of the tobacco shreds. A thin-plate drying machine uses steam as a heat source to heat a shaped thin-plate heat exchanger inside the drying cylinder and a hot air radiator outside the cylinder. The thin plates and hot air heat the tobacco shreds, causing them to continuously evaporate moisture. Excess moisture and impurities are then removed through a dehumidification system, thus regulating the moisture content of the tobacco shreds at the dryer's outlet. Existing drying machines use high-temperature gas from a steam boiler, which is fed into the machine through a rotary joint. This rotary joint has a concentric tube structure; after heat exchange, the mixture of steam and condensate flows out through the inner tube of the rotary joint.

[0003] However, the existing wire drying machine has a certain height. The rotary joint with the concentric tube structure is connected by a flange and has a fixed hanging column at the top to meet the installation requirements. However, the technicians found that due to the large weight of the rotary joint and the rigid connection at the top, the rotary joint often sinks or swings under the influence of gravity and working air pressure. If the sinking or swinging is excessive, it can damage the concentric tube seal, causing leakage and other major repair problems, which seriously affect the production progress. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a correction device for the rotary joint of a thin plate wire drying machine. The correction device adopts the combined action of the tension and support force of the spring group, which effectively reduces the sinking phenomenon of the rotary joint and ensures the coaxiality of the inner and outer tubes of the rotary joint.

[0005] To solve the above problems, the specific technical solution of this utility model is as follows: A rotary joint correction device for a thin plate wire drying machine, the rotary joint includes a joint body, a steam inlet, a cooling water outlet, and a heat exchanger interface; wherein the steam inlet and the cooling water outlet are respectively connected to vertically arranged steam pipes and cooling water pipes through flanges; an outer shell is provided on the outer periphery of the joint body, and a force application point is provided on the outer shell; a fixing point is provided on the outside of the rotary joint, and a spring is provided between the force application point and the fixing point; an adjustment tension device is provided at one end of the spring, and the force applied by the adjusted spring to the outer shell is transmitted to the joint body and balanced with the total weight of the joint body and the outer shell.

[0006] The outer shell is composed of two symmetrical arc-shaped surfaces, with fastening flanges at both ends of each arc-shaped surface, and the force application point is located on the outer surface of the outer shell.

[0007] The number of force application points on the outer surface of the housing is one to four, and each spring connected to the force application point is arranged in the radial direction of the connector body.

[0008] The tension adjustment device includes a positioning block, a screw rod, a positioning nut, and a connecting ring. The positioning block is fixed at a fixed point and has an internal thread that is threaded to the screw rod. The screw rod is threaded to the positioning nut, and the surface of the adjusted positioning nut is close to the positioning block for positioning. A connecting ring is provided at the end of the screw rod, and the connecting ring is hooked to the end of the corresponding spring.

[0009] Connect a dial-type tension gauge between the connecting ring and the spring.

[0010] The rotary joint correction device for the thin plate wire drying machine of this application adopts the above-described structure and has the following advantages: 1. The spring force is used to counteract the weight of the rotary joint, reducing the problem of sinking caused by the weight of the joint body; 2. The outer shell adopts a split structure and is fastened to the outside of the rotary joint by a fastening flange, so that external forces through the outer shell can be directly applied to the joint body; 3. The tension adjustment device is connected to the positioning block by upper and lower screws to achieve a slight adjustment of the spring tension; 4. A dial-type tension gauge is installed between the tension adjustment device and the connecting ring to monitor the changes in spring tension at any time and adjust the spring tension in a timely manner. Attached Figure Description

[0011] Figure 1 This is the main view of this application.

[0012] Figure 2 This is the right view of this application.

[0013] Figure 3 This is a schematic diagram of the outer casing in its open state.

[0014] Figure 4 A schematic diagram of the tension adjustment device. Detailed Implementation

[0015] like Figure 1 and Figure 2 As shown, a rotary joint correction device for a thin plate wire drying machine includes a joint body 1, a steam inlet 2, a cooling water outlet 3, and a heat exchanger interface 4. The steam inlet 2 and the cooling water outlet 3 are respectively connected to a vertically arranged steam pipeline 5 and a cooling water pipeline 6 via flanges. A shell 7 is provided on the outer periphery of the joint body 1, and a force application point 8 is provided on the shell 7. A fixing point 9 is provided on the outside of the rotary joint, and a spring 10 is provided between the force application point 8 and the fixing point 9. An adjustment tension device is provided at one end of the spring 10. The force applied to the shell 7 by the adjusted spring 10 is transmitted to the joint body 1 and is balanced with the total weight of the joint body 1 and the shell 7.

[0016] like Figure 3As shown, the outer shell 7 is composed of two symmetrical arc surfaces, with fastening flanges at both ends of each arc surface, and the force application point 8 is located on the outer surface of the outer shell 7.

[0017] The number of force application points 8 on the outer surface of the outer shell 7 is one to four, and each spring 10 connected to the force application point 8 is arranged along the radial direction of the connector body 1. In this embodiment, two springs 10 are used, which simultaneously pull upwards at both sides. Alternatively, a single spring 10 can be used to lift vertically, or two springs 10 can be distributed vertically, or four springs 10 can be distributed in a cross shape.

[0018] like Figure 4 As shown, the tension adjustment device includes a positioning block 11, a screw rod 12, a positioning nut 13, and a connecting ring 14. The positioning block is fixed at a fixed point 9. The positioning block 11 has an internal thread and is threadedly connected to the screw rod 12. The screw rod 12 is threadedly connected to the positioning nut 13, and the adjusted surface of the positioning nut 13 is close to the positioning block 11 for positioning. A connecting ring 14 is provided at the end of the screw rod 12, and the connecting ring 14 is hooked to the end of the corresponding spring 10. A dial-type tension gauge 15 is connected between the connecting ring 14 and the spring 10.

[0019] After initial installation, a matching tension spring 10 is installed between the force application point 8 and the fixing point 9 to ensure the concentricity of the inner and outer double-layer pipes of the joint body 1. Then, the cooling water pipe 6 and the steam pipe 5 are assembled. After assembly, the dial tension gauge 15 is zeroed. After working for a period of time, when the re-inspection requirements are met, the positive or negative value of the dial tension gauge 15 is used to determine the sinking or deflection distance of the joint body. By rotating the screw 12, the tension of the spring 10 is adjusted, thereby ensuring that the dial tension gauge 15 is zeroed again. This satisfies the requirement that the rotary joint can work concentrically normally without the need for maintenance after production stoppage, thus ensuring the production schedule.

Claims

1. A rotary joint correction device for a thin plate wire drying machine, characterized in that: The rotary joint includes a joint body (1), a steam inlet (2), a cooling water outlet (3), and a heat exchanger interface (4); wherein the steam inlet (2) and the cooling water outlet (3) are connected to the vertically arranged steam pipeline (5) and cooling water pipeline (6) respectively through flanges; a shell (7) is provided on the outer periphery of the joint body (1), a force application point (8) is provided on the shell (7), a fixing point (9) is provided on the outside of the rotary joint, and a spring (10) is provided between the force application point (8) and the fixing point (9); a tension adjustment device is provided at one end of the spring (10), and the force applied to the shell (7) by the adjusted spring (10) is transmitted to the joint body (1) and is balanced with the total weight of the joint body (1) and the shell (7).

2. The rotary joint correction device for a thin plate wire drying machine according to claim 1, characterized in that: The outer shell (7) is composed of two symmetrical arc surfaces, with fastening flanges at both ends of each arc surface, and the force application point (8) is located on the outer surface of the outer shell (7).

3. The rotary joint correction device for a thin plate wire drying machine according to claim 2, characterized in that: The number of force application points (8) on the outer surface of the outer shell (7) is one to four, and each spring (10) connected to the force application point (8) is arranged in the radial direction along the connector body (1).

4. The rotary joint correction device for a thin plate wire drying machine according to claim 2, characterized in that: The tension adjustment device includes a positioning block (11), a screw rod (12), a positioning nut (13), and a connecting ring (14). The positioning block is fixed at a fixed point (9). The positioning block (11) has an internal thread and is threadedly connected to the screw rod (12). The screw rod (12) is threadedly connected to the positioning nut (13), and the surface of the adjusted positioning nut (13) is close to the positioning block (11). A connecting ring (14) is provided at the end of the screw rod (12), and the connecting ring (14) is hooked to the end of the corresponding spring (10).

5. The rotary joint correction device for a thin plate wire drying machine according to claim 4, characterized in that: Connect a dial-type tension gauge (15) between the connecting ring (14) and the spring (10).

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