Hybrid gas combustion furnace for synthesis of hydrochloric acid

Abstract

The utility model discloses a mixed gas combustion furnace for hydrochloric acid synthesis belongs to the field of hydrochloric acid synthesis, the utility model discloses a mixed gas combustion furnace for hydrochloric acid synthesis, including combustion furnace body, the outside fixed jacket of combustion furnace body is connected with the water inlet pipe at the outside of jacket, the bottom fixed mixing chamber of combustion furnace body, the outside fixed two air inlet pipes of mixing chamber, the outside fixed heating jacket of two air inlet pipes, be provided with the mixing mechanism for mixing hydrogen and chlorine gas on the mixing chamber, the outside fixed connecting pipe of two heating jackets. The utility model solves the problem that the insufficient gas preheating of the existing hydrochloric acid synthesis combustion furnace leads to the insufficient combustion when using, the utility model is through setting heating jacket at the outside of air inlet pipe and with furnace body jacket intercommunication, utilizes the jacket circulating hot water to preheat hydrogen and chlorine gas, and the combustion reaction efficiency is improved significantly, and the gas molecule activity after preheating is enhanced, makes the mixture more uniform, and the combustion is more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of hydrochloric acid synthesis, specifically to a mixed gas combustion furnace for hydrochloric acid synthesis. Background Technology

[0002] The mixed gas combustion furnace for hydrochloric acid synthesis is a key piece of equipment for the combustion reaction of hydrogen and chlorine to produce hydrogen chloride. It is made of high-temperature resistant and corrosion-resistant materials and is usually equipped with a porous jet burner to ensure full gas mixing and stable combustion. The furnace body design includes a cooling jacket and a safe explosion-proof structure. Efficient conversion is achieved by precisely adjusting the gas ratio. The hydrogen chloride gas produced by combustion is cooled and absorbed to produce hydrochloric acid. The equipment integrates an automatic control and safety protection system, which can monitor the flame status and prevent backfire or leakage, ensuring a safe and stable production process.

[0003] Existing hydrochloric acid synthesis combustion furnaces have certain limitations in use. The main problem is the lack of a preheating structure for hydrogen and chlorine, resulting in low temperatures when the gases enter the combustion chamber. This affects mixing efficiency and combustion reaction rate. Due to the insufficient activity of the unpreheated gas molecules, they are difficult to mix fully during combustion, leading to poor flame stability and a tendency for localized incomplete combustion, which reduces the efficiency of hydrogen chloride generation. At the same time, the entry of cold gases into the high-temperature combustion environment may cause thermal stress fluctuations, affecting the stability of equipment operation. In addition, unpreheated chlorine may retain some liquid components at low temperatures, further hindering uniform mixing with hydrogen and resulting in insufficient reaction. Ultimately, this affects the overall energy efficiency and yield of hydrochloric acid synthesis.

[0004] In summary, to improve the reaction efficiency and energy utilization of the hydrochloric acid synthesis combustion furnace, it is necessary to address the problem of incomplete combustion caused by insufficient gas preheating, ensuring that hydrogen and chlorine reach a suitable reaction temperature before entering the combustion chamber, thereby improving mixing uniformity, enhancing flame stability, and increasing the conversion rate of hydrogen chloride. Utility Model Content

[0005] The purpose of this invention is to provide a mixed gas combustion furnace for hydrochloric acid synthesis. By setting a heating jacket on the outside of the gas inlet pipe and connecting the heating jacket to a jacket, the hot water inside the jacket is used to preheat the gas inside the gas inlet pipe, thereby improving the reaction efficiency and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mixed gas combustion furnace for hydrochloric acid synthesis, comprising a combustion furnace body, a jacket fixed to the outside of the combustion furnace body, a water inlet pipe connected to the outside of the jacket, a mixing chamber fixed to the bottom of the combustion furnace body, two air inlet pipes fixed to the outside of the mixing chamber, heating jackets fixed to the outside of each of the two air inlet pipes, a mixing mechanism for mixing hydrogen and chlorine gas provided on the mixing chamber, connecting pipes fixed to the outside of each of the two heating jackets, fixing pipes fixed to the ends of the two connecting pipes, a water outlet pipe connected to the fixing pipe, and a discharge mechanism for discharging hot water provided inside the water outlet pipe.

[0007] Preferably, the mixing mechanism includes a mounting assembly fixed to the bottom of the mixing chamber, a driving assembly disposed on the mounting assembly, and a stirring assembly disposed on the driving assembly. The mounting assembly is used to fix the driving assembly, the driving assembly is used to drive the stirring assembly to rotate, and the stirring assembly is used to mix the gas.

[0008] Preferably, the mounting assembly includes multiple fixing plates fixed to the bottom of the mixing chamber, a support rod fixed to the bottom of the fixing plates, and a fixing plate fixed to the bottom of the support rod. The fixing plates are fixed to the mixing chamber by bolts.

[0009] Preferably, the drive assembly includes a drive motor fixed on a fixed plate and a connecting shaft fixed to the output end of the drive motor, wherein the drive motor is used to drive the connecting shaft to rotate.

[0010] Preferably, the mixing assembly includes a bushing fixed to the bottom of the mixing chamber and a stirring blade fixed to the connecting shaft, wherein the connecting shaft is rotatably connected to the bushing in a sealed manner.

[0011] Preferably, the discharge mechanism includes a linkage component disposed on the outside of the water outlet pipe and a drainage component disposed inside the water outlet pipe. The linkage component is used to drive the drainage component to rotate, and the drainage component is used to increase the flow rate of hot water discharge.

[0012] Preferably, the linkage assembly includes a sealing joint fixed to the outside of the water outlet pipe, a transmission shaft rotatably connected to the inside of the sealing joint, a first bevel gear fixed to the end of the transmission shaft, and a second bevel gear fixed to the outside of the connecting shaft, wherein the first bevel gear meshes with the second bevel gear.

[0013] Preferably, the drainage assembly includes a bracket fixed inside the outlet pipe and a fan blade rotatably connected to the bracket. The end of the drive shaft passes through the bracket and is fixedly connected to the fan blade. The drive shaft is used to drive the fan blade to rotate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention significantly improves combustion efficiency by installing a heating jacket on the outside of the air inlet pipe and connecting it to the furnace jacket. The jacket uses circulating hot water to preheat hydrogen and chlorine, which enhances the activity of the gas molecules after preheating. This allows the gases to reach the reaction temperature more quickly upon entering the combustion chamber, resulting in more uniform mixing and more complete combustion. This effectively reduces local incomplete combustion. This design not only improves flame stability but also reduces energy consumption through waste heat recovery, while avoiding thermal stress problems caused by sudden heating of cold gases. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the jacket of this utility model;

[0018] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the mixed-room interior of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the discharge mechanism of this utility model.

[0021] In the diagram: 1. Combustion furnace body; 2. Jacket; 3. Water inlet pipe; 4. Mixing chamber; 5. Air inlet pipe; 6. Heating jacket; 71. Fixing plate; 72. Support rod; 73. Fixing plate; 74. Drive motor; 75. Connecting shaft; 76. Shaft sleeve; 77. Stirring blade; 8. Connecting pipe; 9. Fixing pipe; 10. Water outlet pipe; 111. Sealing joint; 112. Transmission shaft; 113. First bevel gear; 114. Second bevel gear; 115. Support; 116. Fan blade. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] Refer to the instruction manual appendix Figures 1 to 5 A mixed gas combustion furnace for hydrochloric acid synthesis includes a furnace body 1, a jacket 2 fixed to the outside of the furnace body 1, a water inlet pipe 3 connected to the outside of the jacket 2, a mixing chamber 4 fixed to the bottom of the furnace body 1, two air inlet pipes 5 fixed to the outside of the mixing chamber 4, a heating jacket 6 fixed to the outside of each of the two air inlet pipes 5, a mixing mechanism for mixing hydrogen and chlorine gas provided on the mixing chamber 4, a connecting pipe 8 fixed to the outside of each of the two heating jackets 6, a fixing pipe 9 fixed to the end of each of the two connecting pipes 8, a water outlet pipe 10 connected to the fixing pipe 9, and a discharge mechanism for discharging hot water provided inside the water outlet pipe 10.

[0024] It should be noted that the circulating hot water in the jacket 2 is introduced into the heating jacket 6 through the connecting pipe 8 to preheat the hydrogen and chlorine in the air inlet pipe 5. The preheated gas is fully mixed and burned under the action of the mixing mechanism. The waste heat generated by the combustion continues to maintain the water temperature of the jacket 2, forming a heat energy cycle. At the same time, the discharge mechanism accelerates the hot water circulation, ensuring the system's heat exchange efficiency and improving the overall combustion reaction rate and stability.

[0025] Refer to the instruction manual appendix Figures 3 to 5 The mixing mechanism includes a mounting assembly fixed to the bottom of the mixing chamber 4, a drive assembly disposed on the mounting assembly, and a stirring assembly disposed on the drive assembly. The mounting assembly is used to fix the drive assembly, the drive assembly is used to drive the stirring assembly to rotate, and the stirring assembly is used to mix the gas.

[0026] It should be noted that the mixing mechanism uses the high-speed rotation of the stirring component to force the gas flow to disperse, eliminating the stratification of hydrogen and chlorine, and ensuring that the two gases are uniformly mixed at the molecular level before combustion.

[0027] Refer to the instruction manual appendix Figures 3 to 5 The installation assembly includes multiple fixing plates 71 fixed to the bottom of the mixing chamber 4, a support rod 72 fixed to the bottom of the fixing plates 71, and a fixing plate 73 fixed to the bottom of the support rod 72. The fixing plates 71 are fixed to the mixing chamber 4 by bolts.

[0028] It should be noted that the mounting components securely suspend the drive components below the mixing chamber 4, isolating them from vibrations in the high-temperature combustion zone and ensuring long-term reliable operation of the transmission system.

[0029] Refer to the instruction manual appendix Figures 3 to 5 The drive assembly includes a drive motor 74 fixed on a fixed plate 73 and a connecting shaft 75 fixed on the output end of the drive motor 74. The drive motor 74 is used to drive the connecting shaft 75 to rotate.

[0030] It should be noted that the drive motor 74 provides a constant torque output to the mixing component, and the continuous high-speed operation of the mixing component is achieved through the power transmission of the connecting shaft 75.

[0031] Refer to the instruction manual appendix Figures 3 to 5 The mixing assembly includes a bushing 76 fixed at the bottom of the mixing chamber 4 and a stirring blade 77 fixed on a connecting shaft 75. The connecting shaft 75 is rotatably connected to the bushing 76 in a sealed manner.

[0032] It should be noted that when the stirring blade 77 rotates, it can create a turbulent field in the mixing chamber 4, break up gas clusters and extend the mixing path, and significantly improve the gas diffusion rate.

[0033] Refer to the instruction manual appendix Figure 3 and Figure 5The discharge mechanism includes a linkage component located outside the outlet pipe 10 and a drainage component located inside the outlet pipe 10. The linkage component is used to drive the drainage component to rotate, and the drainage component is used to increase the hot water discharge flow rate.

[0034] It should be noted that the discharge mechanism accelerates the hot water turnover rate in jacket 2 by forced drainage, preventing local overheating and scaling, and maintaining optimal heat transfer efficiency.

[0035] Refer to the instruction manual appendix Figure 3 and Figure 5 The linkage assembly includes a sealing joint 111 fixed to the outside of the water outlet pipe 10, a transmission shaft 112 rotatably connected to the inside of the sealing joint 111, a first bevel gear 113 fixed to the end of the transmission shaft 112, and a second bevel gear 114 fixed to the outside of the connecting shaft 75. The first bevel gear 113 meshes with the second bevel gear 114.

[0036] It should be noted that when the connecting shaft 75 rotates, it drives the second bevel gear 114 to rotate. When the second bevel gear 114 rotates, it can drive the transmission shaft 112 to rotate through meshing with the first bevel gear 113, thereby realizing the synchronous control of mixing and drainage functions by a single drive motor 74.

[0037] Refer to the instruction manual appendix Figure 3 and Figure 5 The drainage assembly includes a bracket 115 fixed inside the outlet pipe 10 and a fan blade 116 rotatably connected to the bracket 115. The end of the drive shaft 112 passes through the bracket 115 and is fixedly connected to the fan blade 116. The drive shaft 112 is used to drive the fan blade 116 to rotate.

[0038] It should be noted that when the drive shaft 112 rotates, it can drive the fan blade 116 to rotate. The rotating fan blade 116 generates axial suction force, which accelerates the directional discharge of high-temperature water and at the same time uses the flow energy of water to reduce pipe deposition.

[0039] Working principle: During operation, hydrogen and chlorine enter the mixing chamber 4 through two separate inlet pipes 5. During gas flow, circulating hot water, continuously heated by combustion within the jacket 2, flows through the connecting pipe 8 into the heating jacket 6 surrounding the inlet pipes 5, fully preheating the gas inside. The preheated gas then enters the bottom of the mixing chamber 4. At this time, the connecting shaft 75, fixed to the output end of the drive motor 74, rotates at high speed, driving the stirring blades 77 mounted at its top to strongly agitate the gas within the mixing chamber 4. The connecting shaft 75 achieves sealed rotation with the mixing chamber 4 via the bushing 76. The high-speed rotating stirring blades 77 forcibly disperse the gas flow, ensuring that the hydrogen and chlorine are uniformly mixed at the molecular level. The highly reactive gas, which is mixed evenly, enters the combustion furnace body 1 and is efficiently burned to generate hydrogen chloride. The waste heat generated by the combustion is absorbed by the water in the jacket 2 to maintain a high temperature. At the same time, the rotating connecting shaft 75 meshes with the first bevel gear 113 at the end of the transmission shaft 112 through the second bevel gear 114 on its outer side, and transmits power to the transmission shaft 112 inside the water outlet pipe 10. This drives the fan blade 116 fixed at its end to rotate at high speed. The rotating fan blade 116 generates a suction force in the water outlet pipe 10, which accelerates the forced discharge of the water with a higher temperature after heat exchange in the jacket 2 through the fixed pipe 9 and the water outlet pipe 10, promoting the circulation and renewal of hot water in the jacket 2 and the efficient utilization of heat energy in the entire system.

[0040] It should be noted that the control method of this utility model is controlled by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Therefore, this utility model will not explain the control method and circuit connection in detail. In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0041] 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.

Claims

1. A mixed gas combustion furnace for synthesis of hydrochloric acid, comprising a combustion furnace body (1), characterized in that, The combustion furnace body (1) is fixed with a jacket (2) on the outside, the bottom of the combustion furnace body (1) is fixed with a mixing chamber (4), the outside of the mixing chamber (4) is fixed with two air inlet pipes (5), the outside of the two air inlet pipes (5) is fixed with a heating jacket (6), the mixing chamber (4) is provided with a mixing mechanism for mixing hydrogen and chlorine, the outside of the two heating jackets (6) is fixed with a connecting pipe (8), the end of the two connecting pipes (8) is fixed with a fixed pipe (9), the fixed pipe (9) is connected with a water outlet pipe (10), the inside of the water outlet pipe (10) is provided with a discharge mechanism for discharging hot water.

2. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 1, characterized by, The mixing mechanism comprises a mounting assembly fixed on the bottom of the mixing chamber (4), a driving assembly arranged on the mounting assembly and a stirring assembly arranged on the driving assembly, the mounting assembly is used for fixing the driving assembly, the driving assembly is used for driving the stirring assembly to rotate, and the stirring assembly is used for mixing gas.

3. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 2, characterized by, The mounting assembly comprises a plurality of fixed sheets (71) fixed on the bottom of the mixing chamber (4), a support rod (72) fixed on the bottom of the fixed sheet (71) and a fixed plate (73) fixed on the bottom of the support rod (72), and the fixed sheet (71) is fixed with the mixing chamber (4) through bolts.

4. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 3, characterized by The driving assembly comprises a driving motor (74) fixed on the fixed plate (73) and a connecting shaft (75) fixed on the output end of the driving motor (74), and the driving motor (74) is used for driving the connecting shaft (75) to rotate.

5. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 4, characterized by The stirring assembly comprises a shaft sleeve (76) fixed on the bottom of the mixing chamber (4) and a stirring blade (77) fixed on the connecting shaft (75), and the connecting shaft (75) is sealingly and rotatably connected with the shaft sleeve (76).

6. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 5, characterized by The discharge mechanism comprises a linkage assembly arranged on the outside of the water outlet pipe (10) and a drainage assembly arranged in the inside of the water outlet pipe (10), the linkage assembly is used for driving the drainage assembly to rotate, and the drainage assembly is used for improving the hot water discharge flow rate.

7. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 6, characterized by The linkage assembly comprises a sealing joint (111) fixed on the outside of the water outlet pipe (10), a transmission shaft (112) sealingly and rotatably connected in the inside of the sealing joint (111), a first bevel gear (113) fixed on the end of the transmission shaft (112) and a second bevel gear (114) fixed on the outside of the connecting shaft (75), and the first bevel gear (113) is engaged with the second bevel gear (114).

8. The mixed gas combustion furnace for synthesis of hydrochloric acid according to claim 7, characterized by The drainage assembly comprises a support (115) fixed in the inside of the water outlet pipe (10) and a fan blade (116) rotatably connected on the support (115), the end of the transmission shaft (112) penetrates through the support (115) and is fixedly connected with the fan blade (116), and the transmission shaft (112) is used for driving the fan blade (116) to rotate.

Images