Heat exchanger for sulfur combustion

Abstract

The utility model discloses a heat exchanger for sulfur combustion, and belongs to the technical field of heat exchangers, the heat exchanger comprises a support frame, a smoke box is arranged on the support frame, a heat exchanger is arranged in the smoke box, a shell is arranged on the heat exchanger, and a smoke inlet is formed in the smoke box; the heat exchanger solves the problem of solid sulfur precipitation in advance, the problem that solid sulfur is attached to the heat exchanger is solved to a great extent, the service life of the heat exchanger is prolonged, the heat exchange efficiency of the heat exchanger is kept, and the maintenance cost is reduced; in the field of bromine, recovery of heat lost due to the fact that sulfur dioxide gas in sulfur combustion must be cooled becomes reality, and great energy consumption is saved for bromine manufacturers.

Description

Technical Field

[0001] This application belongs to the field of heat exchanger technology, and in particular relates to a heat exchanger for sulfur combustion. Background Technology

[0002] With the rapid economic and intelligent development of the domestic bromine industry, automatic heat exchanger systems have played an important role in the exchange of energy between two materials and have developed rapidly. However, the existing heat exchanger materials and structures are not suitable for use in sulfur combustion and sulfur dioxide production, and their application is unsatisfactory. In the simple tubular structure, the volatile sulfur produced by sulfur combustion will solidify and connect between the heat exchange tubes as the temperature decreases. Over time, this will greatly reduce the heat exchange efficiency. There is no structure in the existing heat exchangers to remove solid sulfur. Summary of the Invention

[0003] The purpose of this application is to provide a heat exchanger for sulfur combustion, in order to solve the technical problem that solid sulfur easily adheres to the heat exchange tubes when existing heat exchangers are used for sulfur combustion gases, resulting in low heat exchange efficiency.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a heat exchanger for sulfur combustion, including a support frame, a smoke box on the support frame, a heat exchanger inside the smoke box, a shell on the heat exchanger, and a flue gas inlet on the smoke box.

[0005] In one embodiment,

[0006] The support frame has a hollowed-out section in the middle, and the cigarette box is installed in the hollowed-out position.

[0007] In one embodiment,

[0008] The tobacco box is cylindrical and includes a tobacco box body with a collector at the bottom.

[0009] In one embodiment,

[0010] The collector is funnel-shaped, with a door at the bottom and a viewing mirror on the outer wall.

[0011] In one embodiment,

[0012] The heat exchanger includes a heat exchanger body, a water circulation assembly is provided above the heat exchanger body, and a shell is provided outside the heat exchanger body.

[0013] In one embodiment,

[0014] The lower part of the heat exchanger body and shell is inserted into the smoke box.

[0015] In one embodiment,

[0016] The water circulation component includes an inlet and an outlet on one side of the inlet.

[0017] In one embodiment,

[0018] The bottom of the shell has a notch, and the shell on both sides of the notch is inclined inward.

[0019] In one embodiment,

[0020] A flue gas outlet is provided on one side of the upper part of the casing.

[0021] This application provides a heat exchanger for sulfur combustion. The flue gas inlet is tangentially positioned to the smoke box. Before circulating into the shell within the smoke box, the flue gas undergoes a cooling process using the natural environment, during which some solid sulfur forms and falls to the bottom. The notch at the bottom of the shell is angled inwards to reduce the amount of solid sulfur entering the shell. The shell also prevents solid sulfur from adhering to the surface of the heat exchanger. This heat exchanger effectively solves the problem of solid sulfur precipitation, significantly reducing the issue of solid sulfur adhering to the heat exchanger, extending its service life, maintaining its heat exchange efficiency, and reducing maintenance costs. In the bromine industry, recovering the heat lost due to the cooling process required for sulfur dioxide combustion becomes a reality, saving bromine producers a significant amount of energy. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is the front view of the heat exchanger;

[0024] Figure 2 This is a top view of the heat exchanger.

[0025] Explanation of symbols in the diagram:

[0026] 1. Support frame; 2. Smoke box; 21. Smoke box body; 22. Collector; 3. Heat exchanger; 31. Heat exchanger body; 32. Water circulation assembly; 321. Water inlet; 322. Water outlet; 4. Flue gas inlet; 5. Door; 6. Sight glass; 7. Shell; 71. Notch; 8. Flue gas outlet. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, this application will be further described in detail. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0028] In one embodiment, a heat exchanger for sulfur combustion, such as Figure 1 As shown, it includes a support frame 1, a smoke box 2 on the support frame 1, a heat exchanger 3 inside the smoke box 2, and a flue gas inlet 4 on the smoke box 2; the smoke box 2 includes a smoke box body 21, and a collector 22 at the bottom of the smoke box body 21; the collector 22 is funnel-shaped, and a door 5 is provided at the bottom of the collector 22, and a sight glass 6 is provided on the outer wall of the collector 22; the heat exchanger 3 includes a heat exchanger body 31, and a water circulation assembly 32 is provided above the heat exchanger body 31, the water circulation assembly 32 includes a water inlet 321, and a water outlet 322 is provided on one side of the water inlet 321; the heat exchanger body 31 is covered with a shell 7, and a notch 71 is provided at the bottom of the shell 7; a flue gas outlet 8 is provided on one side of the upper part of the shell 7.

[0029] Specifically, the support frame 1 has a hollowed-out section in the middle, and the smoke box 2 is installed in the hollowed-out position; for example... Figure 2 As shown, the smoke box 2 is cylindrical, and the heat exchanger 3 is cylindrical. The centers of the smoke box 2 and the heat exchanger 3 are the same. The flue gas inlet 4 is tangent to the smoke box 2, and the flue gas entering from the flue gas inlet 4 moves in an arc along the circular inner wall of the smoke box 2. The connection between the heat exchanger body 31 and the smoke box 2 is sealed. The smoke box body 21 and the collector 22 are integrated as one piece. The funnel-shaped inclination angle of the collector 22 is the same as the inclination angle of the shell on both sides of the notch 71. The door 5 is closed when the device is working and opens when the work is finished. The solid sulfur at the bottom will be collected and discharged. The sight glass 6 is located at the bottom of the collector 22. To determine the cleaning status; the shell 7 is located on the outer periphery of the heat exchanger body 31, serving to protect solid sulfur adhering to the heat exchanger body 31. The shell on both sides of the notch 71 is inclined inward, also preventing solid sulfur from entering the heat exchanger body 31; the lower part of the heat exchanger body 31 and the shell 7 are inserted into the smoke box body 21, while the upper part and the water circulation assembly 32 are located outside the smoke box body 21. Cold water enters through the inlet 321, and hot water exits through the outlet 322, thus cooling the heat exchanger body 31; the heat exchanger 3 is a floating head heat exchanger, made of 316L stainless steel.

[0030] The specific structure of this application has been described in detail above. The following, in conjunction with... Figures 1-2 The working principle of the above-mentioned heat exchanger for sulfur combustion is described as follows:

[0031] When the equipment is powered on and the chamber door 5 is closed, water enters through the inlet 321, and the heat exchanger 3 starts working. The flue gas generated by the combustion of sulfur exits through the flue gas inlet 4, through the smoke box 2, the notch 71, the shell 7, and the flue gas outlet 8. The hot water generated by the heat exchange exits through the outlet 322, and the solid sulfur produced falls into the collector 22. After the flue gas is discharged, the solid sulfur in the collector 22 can be observed through the sight glass 6. If there is too much, it needs to be cleaned. Open the chamber door 5, and the solid sulfur can be cleaned and discharged.

[0032] This application provides a heat exchanger for sulfur combustion, including a support frame, a smoke box mounted on the support frame, a heat exchanger inside the smoke box, a shell mounted on the heat exchanger, and a flue gas inlet on the smoke box. The flue gas inlet is tangentially positioned to the smoke box. Before circulating into the shell within the smoke box, the flue gas undergoes a cooling process using the natural environment, during which some solid sulfur forms and falls to the bottom. The notch at the bottom of the shell is angled inwards to reduce the amount of solid sulfur entering the shell. The shell also prevents solid sulfur from adhering to the surface of the heat exchanger. This heat exchanger effectively solves the problem of solid sulfur precipitation, significantly reducing the issue of solid sulfur adhering to the heat exchanger, extending its service life, maintaining its heat exchange efficiency, and reducing maintenance costs. In the bromine industry, recovering the heat lost during the cooling process of sulfur dioxide gas during sulfur combustion becomes a reality, saving bromine producers significant energy consumption.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A heat exchanger for sulfur combustion, comprising a support frame, characterized in that, The support frame is equipped with a smoke box, the smoke box contains a heat exchanger, the heat exchanger has a shell, and the smoke box has a flue gas inlet; The smoke box and the heat exchanger have the same center. The flue gas inlet is tangent to the smoke box. The bottom of the shell has a notch, and the shell on both sides of the notch is inclined inward.

2. The heat exchanger for sulfur combustion according to claim 1, characterized in that, The support frame has a hollowed-out section in the middle, and the cigarette box is installed in the hollowed-out position.

3. A heat exchanger for sulfur combustion according to claim 1, characterized in that, The cigarette box is cylindrical and includes a cigarette box body, with a collector at the bottom of the cigarette box body.

4. A heat exchanger for sulfur combustion according to claim 3, characterized in that, The collector is funnel-shaped, with a door at the bottom and a viewing mirror on the outer wall.

5. A heat exchanger for sulfur combustion according to claim 1, characterized in that, The heat exchanger includes a heat exchanger body, a water circulation assembly is provided above the heat exchanger body, and the heat exchanger body is covered by the shell.

6. A heat exchanger for sulfur combustion according to claim 5, characterized in that, The lower part of the heat exchanger body and shell is inserted into the smoke box.

7. A heat exchanger for sulfur combustion according to claim 5, characterized in that, The water circulation component includes a water inlet, and a water outlet is provided on one side of the water inlet.

8. A heat exchanger for sulfur combustion according to claim 1, characterized in that, A flue gas outlet is provided on one side of the upper part of the shell.

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