On-line detachable liquid sulfur storage pool bottom heating pipe system

Abstract

The utility model discloses an on-line detachable liquid sulfur storage pool bottom heating pipe system, which comprises a liquid sulfur storage pool, heating pipe mounting structures and heating pipe assemblies, a plurality of heating pipe mounting structures are arranged in the liquid sulfur storage pool, and the heating pipe assemblies are connected with the corresponding heating pipe mounting structures through flanges; the heating pipe mounting structure comprises a liquid sulfur pool and heating pipe connecting flange, a heating pipe guide rail and a plurality of heating pipe guide rail supports, the heating pipe guide rail is arranged at the bottom of an inner cavity of the liquid sulfur storage pool, the heating pipe guide rail supports are arranged at the lower part of the heating pipe guide rail, and the upper ends of the heating pipe guide rail supports are connected with the bottom of the heating pipe guide rail; and the lower end of the heating pipe guide rail support is connected with the bottom wall of the inner cavity of the liquid sulfur storage pool. The system is reasonable in structure, convenient to disassemble and assemble and high in operability, the heating pipe can be rapidly replaced on line without shutdown after the leakage of the heating pipe of the liquid sulfur storage pool, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of liquid sulfur storage tank heating technology, specifically an online detachable liquid sulfur storage tank bottom heating pipe system. Background Technology

[0002] In the petrochemical industry, sulfur recovery units are equipped with liquid sulfur storage tanks. These tanks typically contain 4-6 sets of heating coils to heat the stored liquid sulfur. These heating coils are generally composed of multiple welded stainless steel pipes, forming a rectangular, large structure that is welded to other components. In actual production, corrosion and construction quality can easily lead to leaks in the heating coils, causing large amounts of steam to enter the liquid sulfur storage tank. This results in increased pressure in the storage tank, affecting the safe, environmentally friendly, and stable operation of the unit.

[0003] If the heating pipe of the existing liquid sulfur storage tank leaks, workers need to enter the tank to replace it after the unit is shut down. The disassembly and assembly are cumbersome and complicated, and cannot be done quickly online. It can also cause problems such as obstruction of liquid sulfur flow in the system, unqualified liquid sulfur products, and leakage of sulfur-containing gas. In addition, if the pressure in the tank is too high, it can cause the tank top to overturn. Utility Model Content

[0004] The purpose of this invention is to provide an online detachable bottom heating pipe system for liquid sulfur storage tanks. This system has a reasonable structure, is easy to assemble and disassemble, and is highly operable. It enables the heating pipe to be quickly replaced online without stopping the equipment in case of leakage, thereby improving work efficiency and reducing labor intensity.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an online detachable liquid sulfur storage tank bottom heating pipe system, the structure of which includes a liquid sulfur storage tank, a heating pipe installation structure and a heating pipe assembly. Multiple heating pipe installation structures are provided inside the liquid sulfur storage tank, and the heating pipe assembly is connected to the corresponding heating pipe installation structure via flanges. The heating pipe installation structure includes a liquid sulfur tank-heating pipe connecting flange, a heating pipe guide rail and a heating pipe guide rail support. The heating pipe guide rail is located at the bottom of the inner cavity of the liquid sulfur storage tank, and multiple heating pipe guide rail supports are provided at the lower part of the heating pipe guide rail. The upper end of each heating pipe guide rail support is connected to the bottom of the heating pipe guide rail, and the lower end of each heating pipe guide rail support is connected to the bottom wall of the inner cavity of the liquid sulfur storage tank. The heating pipe connecting flange is located outside the liquid sulfur storage tank corresponding to the heating pipe guide rail.

[0006] Furthermore, the liquid sulfur pool and the heating pipe connecting flange are connected to the liquid sulfur storage pool via a bracket, and the bracket is provided with a reinforcing ring on one side of the inner cavity of the liquid sulfur storage pool.

[0007] Furthermore, the longitudinal section of the heating tube guide rail is in the shape of an arc-shaped grid.

[0008] Furthermore, the heating pipe assembly includes a heating pipe body, a steam inlet flange, a condensate outlet flange, and a heating pipe connecting to the liquid sulfur pool. The outer end of the heating pipe body is provided with a condensate outlet flange and a heating pipe connecting to the liquid sulfur pool. The heating pipe connecting to the liquid sulfur pool flange is mated with the liquid sulfur pool connecting to the heating pipe flange. A steam inlet flange is provided on one side of the outer end of the heating pipe body.

[0009] Furthermore, the heating tube body is a jacketed tube composed of two stainless steel pipes of different diameters, and the pipes of different diameters at the sealed end of the heating tube body are connected and supported by a perforated support ring.

[0010] Furthermore, both the heating tube guide rail and the heating tube guide rail support are made of stainless steel.

[0011] The beneficial effects of this utility model are:

[0012] This utility model's heating tube system features multiple heating tube guide rails located at the lower part of the inner cavity of a liquid sulfur storage tank. Multiple heating tube assemblies are pushed into the liquid sulfur storage tank, corresponding to the openings of each guide rail, and then fixed in place via connecting flanges. The operation is simple and efficient. When the heating tube assembly needs maintenance or replacement, simply lower the liquid level in the sulfur storage tank to a suitable position and remove the heating tube to be replaced. No work stoppage is required, enabling rapid online replacement of heating tubes without interrupting operations. This solves the problem of heating tube leakage in liquid sulfur storage tanks, ensuring the device can operate safely, environmentally friendly, and for extended periods. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the heating tube assembly in this utility model;

[0014] Figure 2 This is a schematic diagram of the heating tube guide rail installation structure;

[0015] Figure 3 for Figure 1 Sectional view of AA;

[0016] Figure 4 for Figure 1 BB section view;

[0017] Figure 5 for Figure 1 CC section view;

[0018] Figure 6 for Figure 1 DD section view;

[0019] Figure 7 for Figure 1 EE section view.

[0020] In the picture:

[0021] 1 Steam inlet flange, 2 Condensate outlet flange, 3 Flange connecting heating pipe and liquid sulfur tank, 4 Perforated support ring, 5 Liquid sulfur storage tank, 6 Flange connecting liquid sulfur tank and heating pipe, 7 Reinforcing ring, 8 Heating pipe guide rail, 9 Heating pipe guide rail support. Detailed Implementation

[0022] The following is a detailed description of an online detachable liquid sulfur storage tank bottom heating pipe system of this utility model, with reference to the accompanying drawings.

[0023] like Figures 1 to 7 As shown, this utility model proposes an online detachable liquid sulfur storage tank bottom heating pipe system. Its structure includes a liquid sulfur storage tank 5, heating pipe mounting structures, and heating pipe assemblies. Multiple heating pipe mounting structures are installed within the liquid sulfur storage tank 5. The heating pipe assemblies are connected to their corresponding mounting structures via flanges. Each heating pipe mounting structure includes a liquid sulfur tank-heating pipe connecting flange 6, heating pipe guide rails 8, and heating pipe guide rail supports 9. The heating pipe guide rails 8 are located at the bottom of the inner cavity of the liquid sulfur storage tank 5. Multiple heating pipe guide rail supports 9 are located below the heating pipe guide rails 8. The upper ends of the heating pipe guide rail supports 9 are connected to the bottom of the heating pipe guide rails 8, and the lower ends are connected to the bottom wall of the inner cavity of the liquid sulfur storage tank 5. The liquid sulfur tank-heating pipe connecting flange 6 is located outside the liquid sulfur storage tank 5 at the location corresponding to the heating pipe guide rails 8. Both the heating pipe guide rails 8 and the heating pipe guide rail supports 9 are made of stainless steel. The heating tube assembly is pushed into the liquid sulfur storage tank through the guide rail opening of the heating tube mounting structure. The heating tube is connected to the liquid sulfur storage tank through a flange. The heating tube guide rail in the liquid sulfur storage tank is in the form of an arc-shaped grid, which is conducive to the heat transfer of the heating tube assembly. The heating tube guide rail support at the bottom of the heating tube guide rail can maintain the stability of the heating tube assembly support.

[0024] The liquid sulfur tank and the heating pipe connecting flange 6 are connected to the liquid sulfur storage tank through a bracket. The bracket is located on one side of the inner cavity of the liquid sulfur storage tank and is equipped with a reinforcing ring 7, which improves the reliability of the heating pipe system installation.

[0025] like Figure 1As shown, the heating pipe assembly includes a heating pipe body, a steam inlet flange 1, a condensate outlet flange 2, and a heating pipe connecting to the liquid sulfur tank flange 3. The outer end of the heating pipe body is equipped with the condensate outlet flange 2 and the heating pipe connecting to the liquid sulfur tank flange 3. The heating pipe connecting to the liquid sulfur tank flange 3 mates with the liquid sulfur tank connecting to the heating pipe flange 6. A steam inlet flange 1 is located on one side of the outer end of the heating pipe body. The heating pipe body is a jacketed pipe composed of two stainless steel pipes of different diameters. The pipes of different diameters at the sealed end of the heating pipe body are connected and supported by a perforated support ring 4.

[0026] When using this utility model, a certain amount of space needs to be reserved on one side of the liquid sulfur storage tank, and the depth of the reserved space is the same as the bottom of the liquid sulfur storage tank, so as to ensure the operating space for disassembling and assembling the heating pipe.

[0027] Heating element installation process

[0028] (1) The heating tube assembly is pushed into the liquid sulfur storage tank through the guide rail opening;

[0029] (2) Connecting the heating pipe flange to the liquid sulfur storage tank flange;

[0030] (3) Connect the steam inlet flange to the shut-off valve and then connect the steam.

[0031] (4) The condensate outlet is connected to the vent valve, shut-off valve and steam trap, and then connected to the condensate pipeline network.

[0032] Heating element disassembly process

[0033] (1) The liquid level in the liquid sulfur storage tank is lower than the guide rail inlet, and the pressure is negative.

[0034] (2) Close the steam supply, close the condensate outlet valve, and open the vent valve to release pressure;

[0035] (3) After the pressure is released, disconnect the flange of the heating pipe from the flange of the liquid sulfur storage tank, and pull the heating pipe out of the liquid sulfur storage tank along the guide rail.

[0036] The heating tube system of this utility model has multiple heating tube guide rails installed in the lower part of the inner cavity of the liquid sulfur storage tank. Multiple heating tube assemblies are pushed into the liquid sulfur storage tank corresponding to the pipe openings of each guide rail. When the heating tube assembly needs maintenance or replacement, the liquid level in the sulfur storage tank only needs to be lowered to a suitable position without stopping the operation. This realizes the online and rapid replacement of heating tubes without stopping the operation, solves the problem of heating tube leakage in liquid sulfur storage tanks, and ensures that the device can operate safely, environmentally friendly and for a long period of time.

[0037] The above description is merely an illustration of some principles of this utility model. This specification is not intended to limit this utility model to the specific structure and applicable scope shown. Therefore, all possible modifications and equivalents that may be used fall within the scope of the patent application of this utility model.

[0038] Except for the technical features described in the specification, all other technical features are known to those skilled in the art.

Claims

1. An online detachable liquid sulfur storage tank bottom heating pipe system, comprising a liquid sulfur storage tank, characterized in that, It also includes heating pipe mounting structures and heating pipe assemblies. The liquid sulfur storage tank is provided with multiple heating pipe mounting structures, and the heating pipe assemblies are connected to the corresponding heating pipe mounting structures via flanges. The heating pipe mounting structure includes a flange connecting the liquid sulfur tank and the heating pipe, a heating pipe guide rail, and a heating pipe guide rail support. The heating pipe guide rail is located at the bottom of the inner cavity of the liquid sulfur storage tank. Multiple heating pipe guide rail supports are provided at the lower part of the heating pipe guide rail. The upper end of the heating pipe guide rail support is connected to the bottom of the heating pipe guide rail, and the lower end of the heating pipe guide rail support is connected to the bottom wall of the inner cavity of the liquid sulfur storage tank. The heating pipe connecting flange is located outside the liquid sulfur storage tank at the location corresponding to the heating pipe guide rail.

2. The online detachable liquid sulfur storage tank bottom heating pipe system according to claim 1, characterized in that, The liquid sulfur tank and the heating pipe connecting flange are connected to the liquid sulfur storage tank through a bracket, and the bracket is provided with a reinforcing ring on one side of the inner cavity of the liquid sulfur storage tank.

3. The online detachable liquid sulfur storage tank bottom heating pipe system according to claim 1 or 2, characterized in that, The longitudinal section of the heating tube guide rail is in the shape of an arc-shaped grid.

4. The online detachable liquid sulfur storage tank bottom heating pipe system according to claim 1, characterized in that, The heating tube assembly includes a heating tube body, a steam inlet flange, a condensate outlet flange, and a heating tube-to-liquid sulfur pool connection flange. The outer end of the heating tube body is provided with a condensate outlet flange and a heating tube-to-liquid sulfur pool connection flange. The heating tube-to-liquid sulfur pool connection flange is mated with the liquid sulfur pool-to-heating tube connection flange. A steam inlet flange is provided on one side of the outer end of the heating tube body.

5. The online detachable liquid sulfur storage tank bottom heating pipe system according to claim 4, characterized in that, The heating tube body is a jacketed tube composed of two stainless steel pipes of different diameters. The pipes of different diameters at the sealed end of the heating tube body are connected and supported by a perforated support ring.

6. The online detachable liquid sulfur storage tank bottom heating pipe system according to claim 1, characterized in that, Both the heating tube guide rail and the heating tube guide rail support are made of stainless steel.

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