High-efficiency treatment system for self-produced steam of hydrogen chloride synthesis furnace

Abstract

The utility model belongs to the technical field of hydrogen chloride synthesis furnace heat energy recycling equipment, and particularly relates to a high-efficiency treatment system for self-produced steam of a hydrogen chloride synthesis furnace, which comprises the hydrogen chloride synthesis furnace and a flash tank, the hydrogen chloride synthesis furnace comprises a carbon steel cylinder and a cooler arranged at the top end of the carbon steel cylinder, and the cooler is used for cooling high-temperature hydrogen chloride gas generated in the carbon steel cylinder; the carbon steel cylinder is sequentially divided into a hydrogen chloride cooling section, a byproduct steam section and a hydrogen chloride combustion synthesis section from top to bottom; the hydrogen chloride cooling section is sleeved with an upper-section steel shell sleeve, the byproduct steam section is sleeved with a middle-section steel shell sleeve, and the hydrogen chloride combustion synthesis section is sleeved with a lower-section steel shell sleeve. The system disclosed by the utility model is high in stability and excellent in performance, and can collect the byproduct steam of the hydrogen chloride synthetic furnace and further improve the heat utilization rate of the synthetic furnace, so that the problem that redundant heat generated by the hydrogen chloride synthetic furnace in the prior art cannot be effectively recycled or is not high in recycling efficiency is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of thermal energy reuse equipment for hydrogen chloride synthesis furnaces, specifically relating to a high-efficiency steam treatment system for self-generated steam in hydrogen chloride synthesis furnaces. Background Technology

[0002] Hydrogen chloride is an important industrial chemical substance, commonly produced by the combustion of a mixture of hydrogen and chlorine gases. This process releases a significant amount of heat, with the flame center reaching temperatures exceeding 2500°C and the generated hydrogen chloride gas exceeding 2000°C. The synthesis of 1 kg of gaseous hydrogen chloride releases approximately 605 kcal of heat, a considerable amount that can be utilized. With the development of the industry, more and more production enterprises are focusing on the recovery and utilization of waste heat from hydrogen chloride production.

[0003] Currently used hydrogen chloride synthesis furnaces mainly consist of a steel outer cylinder and a graphite inner cylinder, with graphite serving as the heat transfer medium. Graphite possesses advantages such as high heat transfer efficiency, corrosion resistance, and high heat resistance. However, due to the high pressure resistance requirements and limitations imposed on hydrogen chloride synthesis furnaces, coupled with the brittleness of graphite as a non-metallic material, the safety factor of existing hydrogen chloride synthesis furnaces is relatively low. Furthermore, the waste heat utilization rate of the synthesis furnace can only reach approximately 40%, which cannot meet the requirements for production and heat recovery.

[0004] Chinese Patent No. CN103950892A (published on July 30, 2014) discloses an all-steel hydrogen chloride synthesis furnace apparatus, including a synthesis furnace, a steam drum, and two conduits connecting the synthesis furnace and the steam drum. The hydrogen chloride synthesis furnace apparatus can improve the utilization rate of steam by utilizing the steam drum. However, the heat recovery rate of this all-steel synthesis furnace is reduced at the top.

[0005] In the domestic hydrogen chloride synthesis process, there are two main methods for utilizing thermal energy: one is to use a steel water-jacketed hydrogen chloride synthesis furnace, which produces hot water as a byproduct. The disadvantage of this method is that the steel synthesis furnace is prone to corrosion at the top and bottom, resulting in a short service life, and the byproduct hot water has a limited range of applications. The other method is to use a graphite-made hydrogen chloride synthesis furnace to produce hot water or steam as a byproduct, which enters a flash tank to generate steam. The pressure is then controlled at 0.2–1.4 MPa by a regulating valve before entering the steam pipeline for utilization. However, the utilization rate of steam and heat recovery still cannot meet production requirements.

[0006] Based on this, the present invention provides a high-efficiency steam treatment system for a hydrogen chloride synthesis furnace, including a carbon steel hydrogen chloride synthesis furnace and a flash tank, which can improve the reaction efficiency of hydrogen chloride production by combustion, and temporarily store and recover heat energy through the flash tank, thereby improving the heat energy recovery efficiency. Utility Model Content

[0007] To address the aforementioned technical problems, this application provides a high-efficiency steam treatment system for hydrogen chloride synthesis furnaces. This system is highly stable and performs excellently. It can collect the by-product steam from the hydrogen chloride synthesis furnace and further improve the thermal utilization rate of the furnace, avoiding the problem in the prior art that excess heat generated by the hydrogen chloride synthesis furnace cannot be effectively recovered or utilized, or that the recovery efficiency is low.

[0008] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0009] A high-efficiency steam treatment system for a hydrogen chloride synthesis furnace includes a hydrogen chloride synthesis furnace and a flash tank;

[0010] The hydrogen chloride synthesis furnace includes a carbon steel cylinder and a cooler located at the top of the carbon steel cylinder. The cooler is used to cool the high-temperature hydrogen chloride gas generated in the carbon steel cylinder.

[0011] The carbon steel cylinder is divided into three sections from top to bottom: a hydrogen chloride cooling section, a by-product steam section, and a hydrogen chloride combustion and synthesis section.

[0012] The hydrogen chloride cooling section is covered by an upper steel shell, the by-product steam section is covered by a middle steel shell, and the hydrogen chloride combustion synthesis section is covered by a lower steel shell; the upper, middle, and lower steel shells are not interconnected.

[0013] The upper section of the steel shell and the hydrogen chloride cooling section form an upper heat exchange chamber, the middle section of the steel shell and the by-product steam section form a middle heat exchange chamber, and the lower section of the steel shell and the hydrogen chloride combustion and synthesis section form a lower heat exchange chamber.

[0014] The lower hydrogen chloride combustion synthesis section is also equipped with a flame detector and a movable ignition gun ignition port;

[0015] The flame detection end of the external flame detection device extends from the flame detection hole into the hydrogen chloride combustion synthesis section, and the ignition end of the external mobile ignition gun extends from the ignition hole of the mobile ignition gun into the hydrogen chloride combustion synthesis section.

[0016] The by-product steam section is equipped with a steam output pipe. The inlet end of the steam output pipe extends into the by-product steam section and is connected to the by-product steam section. The outlet end of the steam output pipe is connected to the flash tank.

[0017] The by-product steam section is also equipped with a steam section water inlet pipe. The output end of the steam section water inlet pipe extends into the by-product steam section, and the input end of the steam section water inlet pipe is connected to an external hot water tank.

[0018] The flash tank is also equipped with a flash tank output pipe at the top, and the flash tank is connected to an external steam network through the flash tank output pipe;

[0019] The upper hydrogen chloride cooling section is equipped with a hydrogen chloride outlet and is connected to a hydrogen chloride outlet pipe.

[0020] Furthermore, the lower hydrogen chloride combustion synthesis section and the middle by-product steam section have the same diameter, while the upper hydrogen chloride cooling section has a diameter that is half the diameter of either the lower hydrogen chloride combustion synthesis section or the middle by-product steam section.

[0021] Furthermore, the diameters of the upper, middle, and lower steel shell sections are identical.

[0022] Furthermore, in the hydrogen chloride combustion synthesis section, hydrogen and chlorine are burned to synthesize hydrogen chloride. The bottom of the lower hydrogen chloride combustion synthesis section is equipped with a lamp holder, and a steel lamp holder is installed inside the lamp holder, which extends into the carbon steel cylinder. During the reaction, a hydrogen-encapsulated chlorine state is formed in the hydrogen chloride combustion synthesis section, and combustion is carried out to synthesize hydrogen chloride.

[0023] Furthermore, a wastewater pipe is installed at the bottom of the hydrogen chloride combustion synthesis section, and a first manual valve is installed on the wastewater pipe.

[0024] Furthermore, the lower steel casing is connected to the synthesis section inlet pipe, the inlet end of which is connected to an external pure water storage device, and a second manual valve is installed on the synthesis section inlet pipe; the lower steel casing is also connected to the synthesis section outlet pipe, the outlet end of which is connected to the upper steel casing, and a third manual valve is installed on the synthesis section outlet pipe; the upper steel casing is also connected to the cooling section outlet pipe, the outlet end of which discharges water externally, and a fourth manual valve is installed on the cooling section outlet pipe.

[0025] Furthermore, a fifth manual valve is installed on the steam output pipe; the flash tank is also equipped with a reflux pipe, the outlet end of which extends into the by-product steam section and is connected to the by-product steam section, and a sixth manual valve is installed on the reflux pipe.

[0026] Furthermore, a hot water pump and a hot water valve are also installed on the steam section inlet pipe.

[0027] Furthermore, the flash tank output pipe is equipped with a supersaturated hot water venting regulating valve; the flash tank output pipe is also equipped with a bypass pipe, and the bypass pipe is also equipped with a bypass regulating valve.

[0028] Furthermore, the connection between the bypass pipe and the flash tank output pipe is located on the flash tank output pipe between the supersaturated hot water venting regulating valve and the flash tank.

[0029] Furthermore, a hydrogen chloride outlet valve is installed on the hydrogen chloride outlet pipe. The hydrogen chloride gas flowing through this pipe can be cooled by the hydrogen chloride cooling section to recover heat and further reduce the outlet temperature of the hydrogen chloride, thereby reducing heat waste. The upper hydrogen chloride cooling section is also equipped with a video fire inspection window for observing whether there is a fire point in the hydrogen chloride cooling section, which facilitates maintenance.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. This utility model introduces 90°C hot water into the carbon steel cylinder of the hydrogen chloride synthesis furnace, and generates supersaturated hot water steam at over 100°C after heat exchange in the middle by-product steam section. The supersaturated hot water steam is then introduced into a flash tank for temporary storage, and then vaporized to generate low-pressure steam. The heat energy is converted and recovered through the flash tank, thereby improving the heat energy utilization rate.

[0032] Meanwhile, the diameter of the upper hydrogen chloride cooling section is half that of the lower hydrogen chloride combustion synthesis section or the middle by-product steam section. This allows for better heat exchange of the hydrogen chloride gas that has not been cooled in time in the by-product steam section, further reducing the outlet temperature of the hydrogen chloride gas in the synthesis furnace and thus better recovering the heat energy.

[0033] 2. The equipment of this utility model has a simple process and low cost. Moreover, the flash tank does not require high configuration and can recover and reuse the heat generated by the hydrogen chloride synthesis furnace. It has the characteristics of simple structure and high heat recovery efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the high-efficiency steam treatment system for the hydrogen chloride synthesis furnace described in Example 1;

[0035] In the diagram: 11. Hydrogen chloride cooling section; 12. Hydrogen chloride outlet pipe; 13. Cooling section water outlet pipe; 21. By-product steam section; 22. Steam output pipe; 23. Return pipe; 24. Steam section water inlet pipe; 25. Hot water pump; 31. Hydrogen chloride combustion synthesis section; 32. Lamp holder; 33. Synthesis section water outlet pipe; 34. Flame detection device; 35. Mobile ignition gun; 36. Synthesis section water inlet pipe; 37. Wastewater pipe; 4. Cooler; 5. Flash tank; 51. Flash tank output pipe; 52. Supersaturated hot water venting regulating valve; 53. Bypass pipe; 54. Bypass pipe regulating valve. Detailed Implementation

[0036] The present invention will be further described below with reference to the embodiments and accompanying drawings, but this is not intended to limit the present invention.

[0037] In the description of this utility model, it should be noted that the directional terms such as "upper", "lower", "top", "bottom", "inner", and "outer" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of the present invention.

[0038] It should be noted that the terms "first," "second," "third," "1#," "2#," etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein.

[0039] Example 1

[0040] like Figure 1 As shown, a high-efficiency steam treatment system for a hydrogen chloride synthesis furnace includes a hydrogen chloride synthesis furnace and a flash tank 5.

[0041] The hydrogen chloride synthesis furnace includes a carbon steel cylinder and a cooler 4 located at the top of the carbon steel cylinder. The cooler 4 is used to cool the high-temperature hydrogen chloride gas generated in the carbon steel cylinder.

[0042] The carbon steel cylinder is divided into three sections from top to bottom: a hydrogen chloride cooling section 11, a by-product steam section 21, and a hydrogen chloride combustion and synthesis section 31. The lower hydrogen chloride combustion and synthesis section 31 and the middle by-product steam section 21 have the same diameter, while the upper hydrogen chloride cooling section 11 has a diameter that is half the diameter of the lower hydrogen chloride combustion and synthesis section 31 or the middle by-product steam section 21.

[0043] The hydrogen chloride cooling section 11 is covered by an upper steel shell, the by-product steam section 21 is covered by a middle steel shell, and the hydrogen chloride combustion synthesis section 31 is covered by a lower steel shell; the upper steel shell, the middle steel shell, and the lower steel shell are not connected to each other;

[0044] The upper steel shell and the hydrogen chloride cooling section 11 form an upper heat exchange chamber; the middle steel shell and the by-product steam section 21 form a middle heat exchange chamber; and the lower steel shell and the hydrogen chloride combustion and synthesis section 31 form a lower heat exchange chamber. The diameters of the upper, middle, and lower steel shells are the same.

[0045] In the hydrogen chloride combustion synthesis section 31, hydrogen and chlorine are burned to synthesize hydrogen chloride. The bottom end of the lower hydrogen chloride combustion synthesis section 31 is provided with a lamp holder 32. A steel lamp holder (not shown in the figure) is installed in the lamp holder 32 and extends into the carbon steel cylinder. During the reaction, a hydrogen-encapsulated chlorine state is formed in the hydrogen chloride combustion synthesis section 31 and is burned to synthesize hydrogen chloride. The lower hydrogen chloride combustion synthesis section 31 is also provided with a flame detection hole and a movable ignition gun ignition hole.

[0046] The flame detection end of the external flame detection device 34 extends from the flame detection hole into the hydrogen chloride combustion synthesis section 31, and the ignition end of the external movable ignition gun 35 extends from the movable ignition gun ignition hole into the hydrogen chloride combustion synthesis section 31.

[0047] The bottom of the hydrogen chloride combustion synthesis section 31 is also equipped with a wastewater pipe 37, and a first manual valve is installed on the wastewater pipe 37.

[0048] The lower steel casing is connected to the synthesis section inlet pipe 36, the inlet end of which is connected to an external pure water storage device. A second manual valve is provided on the synthesis section inlet pipe 36. The lower steel casing is also connected to the synthesis section outlet pipe 33, the outlet end of which is connected to the upper steel casing. A third manual valve is provided on the synthesis section outlet pipe 33. The upper steel casing is also connected to the cooling section outlet pipe 13, the outlet end of which discharges water externally. A fourth manual valve is provided on the cooling section outlet pipe 13.

[0049] The by-product steam section 21 is equipped with a steam output pipe 22. The inlet end of the steam output pipe 22 extends into and is connected to the by-product steam section 21. The outlet end of the steam output pipe 22 is connected to the flash tank 5. A fifth manual valve is provided on the steam output pipe 22. The flash tank 5 is also equipped with a return pipe 23. The outlet end of the return pipe 23 extends into and is connected to the by-product steam section 21. A sixth manual valve is provided on the return pipe 23.

[0050] The by-product steam section 21 is also equipped with a steam section water inlet pipe 24. The output end of the steam section water inlet pipe 24 extends into the by-product steam section 21, and the input end of the steam section water inlet pipe 24 is connected to an external hot water tank (not shown in the figure). The steam section water inlet pipe 24 is also equipped with a hot water pump 25 and a hot water valve.

[0051] The flash tank 5 is also equipped with a flash tank output pipe 51 at the top. The flash tank 5 is connected to an external steam network through the flash tank output pipe 51. The flash tank output pipe 51 is equipped with a supersaturated hot water venting regulating valve 52. The flash tank output pipe 51 is also equipped with a bypass pipe 53, and the bypass pipe 53 is also equipped with a bypass pipe regulating valve 54.

[0052] Furthermore, the connection between the bypass pipe 53 and the flash tank output pipe 51 is located on the flash tank output pipe 51 between the supersaturated hot water venting regulating valve 52 and the flash tank 5.

[0053] The upper hydrogen chloride cooling section 11 is equipped with a hydrogen chloride outlet and connected to a hydrogen chloride outlet pipe 12. The hydrogen chloride outlet pipe 12 is equipped with a hydrogen chloride outlet valve. The hydrogen chloride gas flowing through this section can be heat recovered through the hydrogen chloride cooling section 11 and the hydrogen chloride outlet temperature can be further reduced, thus reducing heat waste. The upper hydrogen chloride cooling section 11 is also equipped with a video fire detection sight glass (not shown in the figure) for observing whether there is a fire point inside the hydrogen chloride cooling section 11, which facilitates maintenance.

[0054] External cold water enters the lower heat exchange chamber from the synthesis section inlet pipe 36. After exchanging heat with the hydrogen chloride combustion synthesis section 31, the water containing heat is passed through the synthesis section outlet pipe 33 into the upper heat exchange chamber. After secondary heat exchange, it flows out through the cooling section outlet pipe 13 and can be passed into subsequent equipment for heating or heat exchange.

[0055] To facilitate the explanation of the equipment and piping connections in the diagram, Figure 1 The first, second, third, fourth, fifth, and sixth manual valves, as well as the hot water valve and the hydrogen chloride outlet valve, are not labeled.

[0056] The cylinder of the hydrogen chloride synthesis furnace is constructed entirely of carbon steel, which effectively solves the pressure resistance problem. Because the by-product steam pressure is relatively high after the hydrogen chloride combustion synthesis section 31 reaction, the by-product steam rises to the by-product steam section 21. Simultaneously, the inner diameter of the upper hydrogen chloride cooling section 11 is smaller than that of the middle by-product steam section 21 and the lower hydrogen chloride combustion synthesis section 31, allowing for better heat exchange and cooling, reducing the hydrogen chloride outlet temperature, thereby improving heat recovery efficiency and ensuring full utilization of thermal energy.

[0057] This invention utilizes the heat released into the by-product steam section 21 after the hydrogen chloride combustion synthesis section 31 reacts. It absorbs the excess heat after the reaction in the carbon steel cylinder by introducing atmospheric pressure hot water into the carbon steel cylinder. The heat is then carried into the flash tank 5 for temporary storage through pipelines. Finally, the excess heat is introduced into an external steam pipeline for reuse.

[0058] The heat absorption principle of this novel hydrogen chloride synthesis furnace is as follows: When water is heated under atmospheric pressure, 100°C is the highest temperature that liquid water can reach at that pressure. Upon further heating, the water will no longer heat up but will begin to transform into steam. The heat absorbed by water before it boils is called "sensible heat," also known as the sensible heat of saturated water. Under the same atmospheric pressure, the heat required to convert saturated water into steam is called "latent heat." If heated under a specific pressure, the boiling point of water will be higher than 100°C, thus requiring the absorption of more sensible heat. As the pressure increases, the boiling point of water and its internal heat content both increase. When the pressure decreases, some sensible heat is released; this excess heat is absorbed as latent heat, causing some water to rapidly transform into steam—a phenomenon known as "flash evaporation."

[0059] Specifically, during operation, 90°C hot water is connected to the steam section inlet pipe 24 and pumped into the carbon steel cylinder by the hot water pump 25. High pressure is generated within the carbon steel cylinder during hydrogen chloride synthesis, creating supersaturated hot water steam exceeding 100°C in this high-pressure environment. This supersaturated hot water steam then enters the flash tank 5 via the steam output pipe 22 in the middle by-product steam section 21. Since the flash tank 5 is connected to an external steam grid via the flash tank output pipe 51, when the pressure inside the flash tank 5 exceeds a set value and is greater than the steam grid pressure, a low-pressure area is formed within the flash tank output pipe 51. At this time, the supersaturated hot water venting regulating valve 52 is opened, allowing the supersaturated steam to enter the steam grid for use by other workshops or subsequent equipment.

[0060] This invention can utilize the excess heat generated by the hydrogen chloride synthesis furnace. The supersaturated hot water discharged from the by-product steam section 21 is temporarily stored in the flash tank 5. Under the low pressure conditions in the flash tank 5, the supersaturated hot water will generate supersaturated hot water steam, which is then transported to the steam pipeline through the flash tank 5 to supply the required workshops or equipment, thereby improving the efficiency of heat reuse.

[0061] The operation mode of this utility model is as follows:

[0062] Before the reaction, close the first manual valve, the second manual valve, the third manual valve, the fourth manual valve, the fifth manual valve, the sixth manual valve, the hot water valve, the hydrogen chloride vent valve, the supersaturated hot water vent regulating valve 52, the bypass pipe regulating valve 54, and the hot water pump 25.

[0063] During the reaction, hydrogen and chlorine are first introduced into the hydrogen chloride combustion synthesis section 31. The hydrogen chloride combustion synthesis section 31 is ignited by an external mobile ignition gun 35, forming a hydrogen-encapsulated chlorine state in the hydrogen chloride combustion synthesis section 31, and hydrogen chloride is synthesized by combustion.

[0064] The high-temperature gas generated by combustion passes sequentially through the hydrogen chloride combustion synthesis section 31, the hydrogen chloride cooling section 11, and the by-product steam section 21, and is then cooled by the cooler 4 at the top of the carbon steel cylinder.

[0065] During the reaction, after the hydrogen chloride combustion synthesis section 31 reacts, the hydrogen chloride gas is highly soluble in water and easily combines with water in the air to form small droplets of hydrochloric acid. Under high temperature conditions, it forms by-product steam. At the same time, the heat released after the hydrogen chloride combustion synthesis section 31 reacts will enter the by-product steam section 21 with the hot steam, resulting in a high pressure of the by-product steam, which continues to rise in the by-product steam section 21.

[0066] At this point, the hot water pump 25 and hot water valve can be turned on, and hot water at 90°C under normal pressure can be introduced into the carbon steel cylinder through the steam section inlet pipe 24. In the high-pressure environment of the by-product steam section 21, the excess heat after the reaction is absorbed, forming supersaturated hot water at a temperature of over 100°C. Then, the fifth manual valve is opened, and the supersaturated hot water steam in the middle by-product steam section 21 enters the flash tank 5 through the steam output pipe 22 for temporary storage. Since the flash tank 5 is connected to the external steam grid through the flash tank output pipe 51, when the pressure inside the flash tank 5 is higher than the set value and greater than the steam grid pressure, a low-pressure area is formed in the flash tank output pipe 51. At this time, the supersaturated hot water venting regulating valve 52 is opened, and the supersaturated steam will enter the steam grid for use by other workshops or subsequent equipment.

[0067] When the external steam supply cannot normally accept high-pressure and high-temperature steam, the supersaturated hot water venting regulating valve 52 can be closed and the bypass pipe regulating valve 54 can be opened to allow the high-pressure and high-temperature steam to be vented from the bypass pipe 53 or connected to other equipment to temporarily store the high-pressure and high-temperature steam again.

[0068] Alternatively, the sixth manual valve on the return pipe 23 can be opened to allow the hot water, after being cooled and depressurized in the flash tank 5, to flow back into the carbon steel cylinder for reheat absorption.

[0069] At the same time, the second and third manual valves can be opened, and the external pure water enters the lower heat exchange chamber through the synthesis section inlet pipe 36. After heat exchange, it enters the upper heat exchange chamber through the synthesis section outlet pipe 33. Then, the fourth manual valve is opened, and after secondary heat exchange, it flows out through the cooling section outlet pipe 13 and can be introduced into subsequent equipment for heating or heat exchange.

[0070] After the reaction is complete, the cooled gas containing hydrogen chloride can be discharged through the hydrogen chloride outlet valve on the hydrogen chloride outlet pipe 12.

[0071] After the entire system has finished running, the first manual valve can be opened to discharge excess wastewater generated during the reaction or heat exchange process of the carbon steel cylinder through wastewater pipe 37 from the carbon steel cylinder.

[0072] The above embodiments are illustrative examples of the implementation of this utility model. The implementation of this utility model is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.

Claims

1. A hydrogen chloride synthesis furnace self-produced steam efficient treatment system, characterized in that, The hydrogen chloride synthesis furnace and the flash tank are connected by the steam output pipe. The hydrogen chloride synthesis furnace comprises a carbon steel cylinder and a cooler arranged at the top end of the carbon steel cylinder, which is used for cooling the high-temperature hydrogen chloride gas generated in the carbon steel cylinder. The carbon steel cylinder is sequentially divided into a hydrogen chloride cooling section, a by-product steam section and a hydrogen chloride combustion synthesis section from top to bottom. The hydrogen chloride cooling section is externally provided with an upper steel shell, the by-product steam section is externally provided with a middle steel shell, and the hydrogen chloride combustion synthesis section is externally provided with a lower steel shell. The upper steel shell, the middle steel shell and the lower steel shell are not connected with each other. The upper steel shell and the hydrogen chloride cooling section form an upper heat exchange chamber, the middle steel shell and the by-product steam section form a middle heat exchange chamber, and the lower steel shell and the hydrogen chloride combustion synthesis section form a lower heat exchange chamber. The lower hydrogen chloride combustion synthesis section is further provided with a fire detection hole and a movable ignition gun ignition hole. The fire detection end of the externally connected fire detection device extends into the hydrogen chloride combustion synthesis section through the fire detection hole, and the ignition end of the externally connected movable ignition gun extends into the hydrogen chloride combustion synthesis section through the movable ignition gun ignition hole. The by-product steam section is provided with a steam output pipe, the inlet end of the steam output pipe extends into the by-product steam section and is connected with the by-product steam section, and the outlet end of the steam output pipe is connected with the flash tank. The by-product steam section is further provided with a steam section water inlet pipe, the outlet end of the steam section water inlet pipe extends into the by-product steam section, and the inlet end of the steam section water inlet pipe is connected with the externally connected hot water tank. The top of the flash tank is further provided with a flash tank output pipe, and the flash tank is connected with the externally connected steam pipe network through the flash tank output pipe.

2. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The upper hydrogen chloride cooling section is provided with a hydrogen chloride gas outlet and is connected with a hydrogen chloride gas outlet pipe.

3. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The lower hydrogen chloride combustion synthesis section and the middle by-product steam section have the same diameter, and the upper hydrogen chloride cooling section has a diameter which is half of the diameter of the lower hydrogen chloride combustion synthesis section or the middle by-product steam section.

4. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The upper steel shell, the middle steel shell and the lower steel shell have the same diameter.

5. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The lower hydrogen chloride combustion synthesis section is further provided with a waste water pipe, and the waste water pipe is provided with a first manual valve.

6. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The lower steel shell is connected with a synthesis section water inlet pipe, the inlet end of the synthesis section water inlet pipe is connected with the externally connected pure water storage device, and the synthesis section water inlet pipe is provided with a second manual valve.

7. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The lower steel shell is further connected with a synthesis section water outlet pipe, the outlet end of the synthesis section water outlet pipe is connected with the upper steel shell, and the synthesis section water outlet pipe is provided with a third manual valve.

8. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The upper steel shell is further connected with a cooling section water outlet pipe, the outlet end of the cooling section water outlet pipe is externally discharged, and the cooling section water outlet pipe is provided with a fourth manual valve.

9. The hydrogen chloride synthesis furnace self-produced steam efficient treatment system of claim 1, wherein, The steam output pipe is provided with a fifth manual valve, and the flash tank is further provided with a reflux pipe, the outlet end of the reflux pipe extends into the by-product steam section and is connected with the by-product steam section, and the reflux pipe is provided with a sixth manual valve. The steam section water inlet pipe is further provided with a hot water pump and a hot water valve. The flash tank output pipe is provided with a supersaturated hot water venting regulating valve, and the flash tank output pipe is further provided with a bypass pipe, and the bypass pipe is further provided with a bypass pipe regulating valve. The hydrogen chloride gas outlet pipe is provided with a hydrogen chloride gas outlet valve.

Images