Inner pipe supporting and damping device of radial heat pipe

Abstract

The utility model relates to the technical field of radial heat pipes, in particular to an inner pipe supporting and damping device of a radial heat pipe, which is capable of well supporting, fixing and damping, prolonging the service life of equipment and ensuring safe production and comprises an inner pipe annular base plate, and supporting pipes are fixed on the outer wall of the inner pipe annular base plate at intervals. A damping spring is arranged in the supporting pipe, one end of the damping spring is fixed to the outer wall of the inner pipe annular base plate, an outer pipe supporting plate is fixed to the other end of the damping spring, and the outer surface of the outer pipe supporting plate is an arc face correspondingly attached to the inner wall of the outer pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of radial heat pipes, in particular to an inner pipe supporting and damping device of a radial heat pipe. Background Art

[0002] With the establishment of the "dual carbon" goal and the promotion of energy conservation and emission reduction policies, major coal-fired (thermal) power plants are paying more and more attention to waste heat recovery. Among them, low-temperature waste heat (<230℃) resources account for half of the flue gas waste heat resources, but when the flue gas temperature drops below the acid dew point, the sulfuric acid vapor formed by the combination of SO3 and water vapor in the flue gas will condense on the wall of the heat exchanger to form a concentrated sulfuric acid solution, which will cause acid corrosion to the metal wall, seriously affecting the heat exchange effect and service life of the waste heat recovery equipment. The radial heat pipe repeatedly carries out the process of evaporation-condensation-evaporation in the annular gap between the inner and outer tubes through the working fluid, realizing the heat exchange of cold and hot liquids. Its heating surface is much larger than the condensation area, which can ensure that the temperature of the heating surface is above the flue gas dew point temperature, and can effectively avoid the dew point corrosion of acidic gas. Therefore, the radial heat pipe has a good effect in the recovery and utilization of low-temperature flue gas waste heat. The radial heat pipe consists of an inner tube and an outer tube. The inner tube passes the cold fluid, and the outer tube is a closed shell. The annular space between the inner tube and the outer tube is vacuum and filled with a certain amount of working fluid. The working fluid changes phase through the temperature difference between the inner and outer tube walls. Therefore, the inner tube cannot be completely immersed in the working fluid. When the inner tube is too long, it is easy to bend and deform, causing part of the inner tube to be completely soaked, reducing the heat exchange effect. On the other hand, the design wind speed of the heat pipe heat exchange equipment is 7-12m / s, which will cause strong vibration of the inner tube and even the entire equipment, seriously affecting the equipment life and safe production. Summary of the invention

[0003] In order to solve the problem that the inner tube of the existing radial heat pipe has no good support and shock absorption, the utility model provides an inner tube support and shock absorption device for a radial heat pipe, which can provide good support, fixation and shock absorption, thereby increasing the service life of the equipment and ensuring safe production.

[0004] The technical solution is as follows: an inner tube support and shock-absorbing device for a radial heat pipe, characterized in that it includes an inner tube annular pad, a support tube is fixed at intervals on the outer wall of the inner tube annular pad, a shock-absorbing spring is arranged in the support tube, one end of the shock-absorbing spring is fixed to the outer wall of the inner tube annular pad, and the other end is fixed to the outer tube support plate, and the outer surface of the outer tube support plate is a curved surface that corresponds to the inner wall of the outer tube.

[0005] It is further characterized in that the inner diameter of the inner tube annular gasket is 1-15 mm larger than the outer diameter of the inner tube;

[0006] The support tubes are evenly arranged in six pieces;

[0007] The outer diameter of the outer tube support plate is 1-15 mm smaller than the inner diameter of the outer tube.

[0008] The outer tube support plate is 3-10 mm higher than the support tube.

[0009] After the utility model is adopted, the inner tube annular pad is sleeved on the inner tube, allowing the outer tube support plate to contact the inner wall of the outer tube. In the case of smoke disturbance, the inner tube is restricted by the inner tube annular pad, and the inner tube annular pad is supported by the outer tube support plate with a shock-absorbing spring, so that the vibration caused by the smoke disturbance can be effectively alleviated, the service life of the equipment is improved, and safe production is ensured; furthermore, six support tubes are evenly arranged, the support points are increased, the force is evenly distributed, and the support effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 Schematic diagram of the state of installing radial heat pipes in the utility model

[0012] Figure 3 This is the installation position of the utility model in the radial heat pipe. DETAILED DESCRIPTION

[0013] See Figure 1 , Figure 2 As shown, an inner tube support and damping device of a radial heat pipe includes an inner tube annular pad 1, the inner diameter of the inner tube annular pad 1 is 1-15mm larger than the outer diameter of the inner tube 5, its axis coincides with the axis of the inner tube 5, and the arc corresponds to the inner wall of the inner tube 5. Six support tubes 2 are evenly fixed on the outer wall of the inner tube annular pad 1, and a damping spring 3 is arranged inside the support tube 2. One end of the damping spring 3 is fixed to the outer wall of the inner tube annular pad 1, and the other end is fixed to the outer tube support plate 4. The outer surface of the outer tube support plate 4 is an arc surface corresponding to the inner wall of the outer tube 6. The outer tube support plate 5 is 3-10mm higher than the support tube 2, and the material of the inner tube annular pad 1 and the outer tube support plate 4 is consistent with the material of the inner tube 5.

[0014] The device has many supporting points, uniform force and good supporting effect. In the case of smoke disturbance, vibrations from all directions can be effectively alleviated.

[0015] like Figure 3 As shown, the device of the present application can be arranged in multiple groups as needed to provide better support and shock absorption for the inner tube.

Claims

1. An inner tube support and damping device for a radial heat pipe, characterized in that: It includes an inner tube annular pad, the outer wall of which is fixed with a support tube at intervals, a shock-absorbing spring is arranged in the support tube, one end of the shock-absorbing spring is fixed to the outer wall of the inner tube annular pad, and the other end is fixed to the outer tube support plate, and the outer surface of the outer tube support plate is a curved surface corresponding to the inner wall of the outer tube.

2. The inner tube support and damping device of a radial heat pipe according to claim 1, characterized in that: The inner diameter of the inner tube annular pad is 1-15 mm larger than the outer diameter of the inner tube.

3. The inner tube support and damping device of a radial heat pipe according to claim 1, characterized in that: Six support tubes are evenly arranged.

4. The inner tube support and damping device of a radial heat pipe according to claim 1, characterized in that: The outer diameter of the outer tube support plate is 1-15 mm smaller than the inner diameter of the outer tube.

5. The inner tube support and damping device of a radial heat pipe according to claim 1, characterized in that: The outer tube support plate is 3-10 mm higher than the support tube.

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