Bromine conveying device

Abstract

The utility model provides a bromine conveying device. The bromine conveying device comprises a gasifying device, a cooling device and a buffering device which are sequentially connected through pipelines, the gasification device receives bromine and gasifies the bromine, and generated bromine steam is vertically and upwards output to the cooling device through a top air outlet. The cooling device is formed by connecting two cooling pipes in series, the first pipe is used for primarily liquefying bromine steam, and the second pipe is used for secondarily liquefying steam which is not completely liquefied. And the liquefied bromine flows into a cache device to be stored. The device further comprises a tail gas treatment device for recycling bromine steam of the second cooling pipe. The bromine gasification condensation technology is adopted, under-pressure conveying of a bromine pump can be replaced, the problems of mechanical faults and the like of the bromine pump are solved, and the risk of bromine leakage is reduced.

Description

Technical Field

[0001] The utility model relates to a bromine conveying device. Background Art

[0002] Bromine is a key raw material in chemical production, making its storage, transportation, and use processes crucially important for its safety and stability. However, due to bromine's high density and corrosive properties, traditional transportation methods, such as pumps, often face challenges due to high pump failure rates. Specifically, when pumping high-density bromine, the high pressure and friction experienced by pumps can easily wear out the pump's seals and internal components, leading to reduced pump efficiency and even safety incidents such as leaks.

[0003] To address the challenges of pumping bromine, some processes use gas pressure to deliver the bromine to an elevated tank. While this method avoids direct wear on the pump, it also creates the problem of high pipeline pressure. PTFE tubing, a commonly used corrosion-resistant piping material, is prone to deformation and leakage under high pressure, increasing the risk of bromine leaks.

[0004] Bromine leaks not only pollute the environment but also pose a serious health threat to on-site workers. Once a leak occurs, reddish-brown smoke with a strong, pungent odor can irritate and harm the respiratory tract and skin, and in severe cases, can even cause poisoning or suffocation. Therefore, existing bromine delivery methods present numerous safety risks and technical bottlenecks, necessitating the development of a safer, more stable, and more efficient bromine delivery method. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a bromine delivery device in order to overcome the defects of the existing bromine delivery method in the prior art, which has many safety hazards and technical bottlenecks.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a bromine delivery device, which comprises: a gasification device, a cooling device and a buffer device which are sequentially connected and communicated with each other through a pipeline;

[0008] The gasification device comprises a first liquid inlet and a first gas outlet, wherein the first liquid inlet is used to receive bromine transported by an external tube;

[0009] The first gas outlet is provided at the top of the gasification device, and the first gas outlet is used to output the bromine vapor obtained by gasification of the gasification device vertically upward;

[0010] The cooling device includes a first cooling pipe and a second cooling pipe, the first cooling pipe and the second cooling pipe are connected in series via a bromine vapor delivery pipe; the first cooling pipe is used to receive the bromine vapor output from the first gas outlet and cool the bromine vapor to liquefy it; the second cooling pipe is used to perform secondary cooling and liquefaction on the bromine vapor not liquefied by the first cooling pipe;

[0011] The cache device includes a cache device liquid inlet, and the cache device liquid inlet is used to pass the collected liquefied bromine into the cache device;

[0012] The bromine delivery device further includes a tail gas treatment device, which is communicated with the second cooling pipe and is used for recovering bromine vapor.

[0013] In this solution, bromine is gasified into bromine vapor by a gasification device. The bromine vapor is output vertically upward through a first gas outlet and transported to a cooling device for liquefaction. The cooling device includes a first cooling pipe and a second cooling pipe connected in series. The bromine obtained by the two liquefactions is transported to a buffer device for storage. The entire process adopts bromine gasification and condensation technology, which can replace the pressure delivery of the bromine pump, avoid problems such as mechanical failure of the bromine pump, and reduce the risk of bromine leakage. The entire device is connected by a pipeline, has a compact structure, is easy to install and maintain, and has a simple operation process. In general, the bromine delivery device of the utility model realizes effective gasification, cooling and liquefaction, caching and tail gas recovery of bromine through its unique design, improves the utilization rate of bromine, reduces energy consumption and environmental risks, and has high practical value and economic and social benefits.

[0014] Preferably, the first cooling pipe and the second cooling pipe respectively include an air inlet, an air outlet and a liquid outlet;

[0015] The air outlet of the first cooling pipe is connected to the air inlet of the second cooling pipe;

[0016] The air inlet of the first cooling pipe is connected to the first air outlet;

[0017] The liquid outlet of the first cooling pipe and the liquid outlet of the second cooling pipe are respectively communicated with the liquid inlet of the buffer device.

[0018] In this solution, a two-stage cooling system is established by connecting the air outlet of the first cooling tube with the air inlet of the second cooling tube. This ensures that the bromine vapor is fully liquefied, reducing bromine loss during transportation. The liquid outlets of the first and second cooling tubes are both connected to the liquid inlet of the buffer device, ensuring that the liquefied liquid bromine is fully delivered to the buffer device for further transportation.

[0019] Preferably, the second cooling pipe further includes a first gas phase balance port; the buffer device includes a second gas phase balance port, and the first gas phase balance port and the second gas phase balance port are connected through a pipeline.

[0020] In this solution, by setting the first gas phase equilibrium port and the second gas phase equilibrium port, the pressure and composition in the reaction system can be effectively controlled, and the stability of the process can be maintained by releasing or replenishing gas, thereby improving the reaction efficiency and safety.

[0021] Preferably, the gasification device further comprises a second liquid inlet, which is used to introduce a heating medium into the gasification device; a jacket is provided inside the gasification device, and the jacket is configured to accommodate the heating medium introduced into the gasification device.

[0022] In this solution, the jacket allows the heating medium to circulate between the jacket and the inner wall of the vaporizer, thereby controlling the temperature of the liquid bromine within the vaporizer. The indirect heating provided by the jacket is more uniform than inserting heating elements directly into the liquid bromine, thereby improving heating efficiency and reaction uniformity. Furthermore, the jacket prevents direct exposure of the heating elements to the liquid bromine, reducing potential chemical reactions or corrosion caused by contact between the liquid bromine and the heating elements, and improving operational safety.

[0023] Preferably, a heating element is installed outside the gasification device, and the heating element is used to maintain the temperature inside the gasification device.

[0024] In this solution, the main function of the heating element is to maintain the temperature inside the gasification device and ensure the continuity and stability of the gasification process. Through heating, the heat lost by the system can be replenished in time.

[0025] Preferably, the gasification device, the cooling device and the buffer device are all provided with a temperature and pressure monitoring and control device, and the temperature and pressure monitoring and control device is used to monitor and control the temperature and pressure in the components in real time.

[0026] In this solution, by setting up a temperature and pressure monitoring and control device, the temperature and pressure of the gasification device, cooling device and cache device can be monitored and adjusted in real time to ensure the safe and stable operation of the system, improve the accuracy and reliability of the operation, and prevent accidents caused by overheating or overpressure.

[0027] Preferably, valves are provided at the pipe connections between the gasification device, the cooling device and the buffer device, for controlling the flow rate of bromine in the bromine delivery device.

[0028] In this solution, valves are installed to precisely control the flow rate of bromine in the bromine delivery system, ensuring stable system operation. Adjusting the valves controls the flow direction and velocity, preventing excessive or slow flow rates from impacting bromine vaporization efficiency and cooling effectiveness. The valves also provide safety protection. For example, if system pressure or temperature are abnormal, closing the valves can shut off the flow and prevent accidents. Furthermore, the valves' excellent sealing properties effectively prevent bromine leakage, ensuring safe operation.

[0029] Preferably, the cooling device is arranged at a height higher than both the gasification device and the cache device, and the cache device is arranged at a height higher than the gasification device.

[0030] In this solution, the cooling device is arranged higher than the gasification device. After the gasification device gasifies the liquid bromine into bromine vapor, the bromine vapor can rise on its own and be transported to the cooling device for liquefaction. The cooling device is arranged at a position higher than the buffer device, so that the liquefied bromine (i.e., liquid bromine) can easily flow into the buffer device, and there is no need to add an additional power device such as a pump to transport the bromine to the buffer device.

[0031] Preferably, the gasification device is an enamel kettle.

[0032] In this solution, the enamel kettle, used as the device for vaporizing liquid bromine, offers the primary advantages of excellent corrosion resistance and non-stick properties. Furthermore, its insulating and isolating properties help prevent direct contact between the medium and the metal, reducing the dissolution of iron ions into the medium and ensuring the purity of the liquid bromine.

[0033] Preferably, the cooling device is a silicon carbide shell and tube heat exchanger.

[0034] In this solution, a silicon carbide shell-and-tube heat exchanger is used as a device for liquefying bromine vapor. It has significant corrosion resistance and high-temperature resistance. The high thermal conductivity of silicon carbide material means that less heat exchange area can be used at the same heat transfer efficiency, saving space. In addition, the silicon carbide heat exchanger has a compact structure, small size, low maintenance cost, and direct access to the tube side for cleaning or inspection, which can achieve efficient and reliable heat exchange.

[0035] The positive and progressive effects of the present invention are as follows: bromine is gasified into bromine vapor by a gasification device, which is vertically output upward through a first gas outlet and transported to a cooling device for liquefaction. The cooling device includes a first cooling pipe and a second cooling pipe connected in series. The bromine obtained after the two liquefactions is transported to a buffer device for storage. The entire process adopts bromine gasification and condensation technology, which can replace the pressure delivery of the bromine pump, avoid problems such as mechanical failure of the bromine pump, and reduce the risk of bromine leakage. The entire device is connected by pipes, has a compact structure, is easy to install and maintain, and has a simple operation process. In general, the bromine delivery device of the present invention, through its unique design, realizes effective gasification, cooling and liquefaction, buffering, and tail gas recovery of bromine, improves the utilization rate of bromine, reduces energy consumption and environmental risks, and has high practical value and economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a bromine delivery device in an embodiment of the present utility model.

[0037] Description of reference numerals:

[0038] Gasification device 1

[0039] First liquid inlet 11

[0040] First air outlet 12

[0041] Second liquid inlet 13

[0042] Jacket 14

[0043] Heating element 15

[0044] Cooling device 2

[0045] First cooling pipe 21

[0046] Second cooling pipe 22

[0047] First gas phase equilibrium port 221

[0048] Cache device 3

[0049] Cache device liquid inlet 31

[0050] Second gas phase equilibrium port 32

[0051] Exhaust gas treatment device 4

[0052] Temperature and pressure monitoring and control device 5 DETAILED DESCRIPTION

[0053] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0056] See also Figure 1 , Figure 1 Schematic diagram of the structure of the bromine delivery device in the embodiment of the present utility model, as shown in FIG. Figure 1 As shown, the embodiment of the present invention provides a bromine delivery device, which includes: a gasification device 1, a cooling device 2 and a buffer device 3 connected in sequence and communicated with each other through pipelines, the gasification device 1 includes a first liquid inlet 11 and a first gas outlet 12, the first liquid inlet 11 is used to receive bromine delivered by an external pipe, the first gas outlet 12 is opened at the top of the gasification device 1, and the first gas outlet 12 is used to output the bromine vapor obtained by gasification of the gasification device 1 vertically upward, the cooling device 2 includes a first cooling pipe 21 and a second cooling pipe 22, the first The cooling tube 21 and the second cooling tube 22 are connected in series through a bromine vapor delivery tube. The first cooling tube 21 is used to receive the bromine vapor output from the first gas outlet 12 and cool and liquefy the bromine vapor. The second cooling tube 22 is used to secondary cool and liquefy the bromine vapor that has not been liquefied by the first cooling tube 21. The cache device 3 includes a cache device liquid inlet 31, and the cache device liquid inlet 31 is used to pass the collected liquefied bromine into the cache device 3. The bromine delivery device also includes an exhaust gas treatment device 4, which is connected to the second cooling tube 22 for recovering bromine vapor.

[0057] Bromine is gasified into bromine vapor by the gasification device 1, which is output vertically upward through the first gas outlet 12 and transported to the cooling device 2 for liquefaction. The cooling device 2 includes a first cooling pipe 21 and a second cooling pipe 22 connected in series. The bromine obtained by the two liquefactions is transported to the buffer device 3 for storage. The entire process adopts bromine gasification and condensation technology, which can replace the pressure delivery of the bromine pump, avoids problems such as mechanical failure of the bromine pump, and reduces the risk of bromine leakage. The entire device is connected by pipelines, has a compact structure, is easy to install and maintain, and has a simple operation process. In general, the bromine delivery device of the utility model, through its unique design, realizes effective gasification, cooling and liquefaction, caching and tail gas recovery of bromine, improves the utilization rate of bromine, reduces energy consumption and environmental risks, and has high practical value and economic and social benefits.

[0058] Specifically, the tail gas treatment device 4 in the present application adopts a gas phase condensation process, which can liquefy the bromine vapor through pure physical changes. Optionally, the tail gas treatment device 4 can also be set as a heat exchange tube, and the bromine obtained by liquefaction in the heat exchange tube is recovered. The recovered bromine can be input into the outer tube again as the input of the gasification device 1, and the bromine is reused.

[0059] In this embodiment, bromine (in this case, liquid) delivered from an external pipe is delivered to the vaporizer 1 via the first liquid inlet 11. The vaporizer 1 is used to heat the liquid bromine, converting it into bromine vapor. The bromine vapor is then discharged vertically upward through the first gas outlet 12 located at the top of the vaporizer 1 and enters the first cooling pipe 21 for cooling and liquefaction. The first cooling pipe 21 and the second cooling pipe 22 are connected in series via a bromine vapor delivery pipe. The second cooling pipe 22 further cools and liquefies the bromine vapor not cooled by the first cooling pipe 21. The liquid bromine obtained by liquefaction via the first and second cooling pipes 21 and 22 is then delivered to the buffer device 3 via the buffer device liquid inlet 31. The gas outlet of the second cooling pipe 22 is also connected to the exhaust gas treatment device 4 for recovering the bromine vapor. In this embodiment, the vaporizer 1 is an enameled kettle. The main advantages of an enameled kettle as a device for vaporizing liquid bromine are its excellent corrosion resistance and good non-stick properties. Furthermore, its insulating and isolating properties help prevent direct contact between the medium and the metal, reduce the dissolution of iron ions into the medium, and ensure the purity of the liquid bromine.

[0060] In this embodiment, the first cooling tube 21 and the second cooling tube 22 each include an air inlet, an air outlet, and a liquid outlet. The air outlet of the first cooling tube 21 and the air inlet of the second cooling tube 22 are connected by a pipe. The air inlet of the first cooling tube 21 is connected by a pipe to the first air outlet 12 of the gasification device 1. The liquid outlet of the first cooling tube 21 and the liquid outlet of the second cooling tube 22 are respectively connected by pipes to the liquid inlet 31 of the buffer device. Specifically, the pipes in this embodiment can be made of polyvinylidene fluoride (PVDF) or an alloy material.

[0061] By connecting the air outlet of the first cooling tube 21 with the air inlet of the second cooling tube 22, a two-stage cooling system is established, ensuring that the bromine vapor is fully liquefied and reducing bromine loss during transportation. The liquid outlet of the first cooling tube 21 and the liquid outlet of the second cooling tube 22 are both connected to the liquid inlet 31 of the buffer device, ensuring that the liquefied liquid bromine is transported to the buffer device 3 for further transportation.

[0062] In this embodiment, cooling device 2 is a silicon carbide shell-and-tube heat exchanger. As a device for liquefying bromine vapor, the silicon carbide shell-and-tube heat exchanger has significant corrosion resistance and high-temperature resistance. The high thermal conductivity of silicon carbide material means that less heat exchange area can be used while maintaining the same heat transfer efficiency, saving space. Furthermore, the silicon carbide heat exchanger is compact and small, with low maintenance costs. Direct access to the tube side for cleaning or inspection allows for efficient and reliable heat exchange.

[0063] In this embodiment, the air inlet of the first cooling pipe 21 is set at the lower left, and the air outlet is set at the top. The air inlet of the cooling pipe is also set at the lower left, and the air outlet is set at the top. This facilitates the bromine vapor to rise slowly from bottom to top, and can fully exchange heat, so that the bromine vapor is liquefied into liquid bromine. At the same time, the liquid outlets of the first cooling pipe 21 and the second cooling pipe 22 are both set at the bottom, which facilitates the flow of liquid bromine into the delivery pipeline and enters the cache device 3. Specifically, the cache device 3 is a bromine high-level tank. The main function of the bromine high-level tank is to maintain a stable liquid level and provide sufficient pressure to ensure the stable delivery of bromine from the cache device 3 to the user end. The cache device 3 can also accommodate the amount of liquid that expands due to temperature changes to prevent the system pressure from being too high.

[0064] In this embodiment, the second cooling pipe 22 further includes a first gas phase equilibrium port 221, and the buffer device 3 includes a second gas phase equilibrium port 32. The first gas phase equilibrium port 221 and the second gas phase equilibrium port 32 are connected by a pipe. Specifically, the first gas phase equilibrium port 221 is provided at the lower right side of the second cooling pipe 22, and the second gas phase equilibrium port 32 is provided at the top of the buffer device 3. By providing the first gas phase equilibrium port 221 and the second gas phase equilibrium port 32, the pressure and composition in the reaction system can be effectively controlled, and the stability of the process can be maintained by releasing or replenishing gas, thereby improving the reaction efficiency and safety.

[0065] In this embodiment, the vaporizer 1 further includes a second liquid inlet 13, located at the bottom of the vaporizer 1. This second inlet 13 is used to introduce a heating medium into the vaporizer 1. A jacket 14 is provided within the vaporizer 1 to accommodate the heating medium introduced into the vaporizer 1. Optionally, the heating medium in the vaporizer 1 can be water, mineral oil, a diphenyl ether mixture, or the like. The provision of the jacket 14 allows the heating medium to circulate between the jacket 14 and the inner wall of the vaporizer 1, thereby controlling the temperature of the liquid bromine within the vaporizer 1. The indirect heating provided by the jacket 14 is more uniform than directly inserting a heating element into the liquid bromine, thereby improving heating efficiency and reaction uniformity. Furthermore, the jacket 14 prevents direct exposure of the heating element to the liquid bromine, reducing chemical reactions or corrosion that could result from contact between the liquid bromine and the heating element, thereby enhancing operational safety.

[0066] In this embodiment, a heating element 15 is installed externally on the vaporizer 1 to maintain the internal temperature of the vaporizer 1. Specifically, the heating element 15 may be an electric heating system, an effective temperature maintenance method that can be used in locations without steam or hot water sources and is suitable for applications requiring precise temperature control and remote control. The primary function of the heating element 15 is to maintain the internal temperature of the vaporizer 1, ensuring the continuity and stability of the vaporization process. This heating system can also replenish heat lost by the system.

[0067] In other embodiments, the heating element 15 may also be a steam source or a hot water source.

[0068] In this embodiment, the height of the cooling device 2 is higher than both the height of the vaporizer 1 and the height of the buffer device 3, and the height of the buffer device 3 is higher than the height of the vaporizer 1. The cooling device 2 is positioned higher than the vaporizer 1. After the vaporizer 1 vaporizes the liquid bromine into bromine vapor, the bromine vapor can rise on its own and be transported to the cooling device 2 for liquefaction. Placing the cooling device 2 higher than the buffer device 3 allows the liquefied bromine (i.e., liquid bromine) to flow easily into the buffer device 3, eliminating the need for an additional power device such as a pump to transport the bromine to the buffer device 3.

[0069] In this embodiment, the vaporizer 1, cooling device 2, and buffer device 3 are each equipped with a temperature and pressure monitoring and control device 5, which is used to monitor and control the temperature and pressure within these components in real time. The temperature and pressure monitoring and control device 5 enables real-time monitoring and adjustment of the temperature and pressure of the vaporizer 1, cooling device 2, and buffer device 3, ensuring safe and stable system operation, improving operational accuracy and reliability, and preventing accidents caused by overheating or overpressure.

[0070] Specifically, the temperature and pressure monitoring and control device 5 in this embodiment is arranged on the top of the gasification device 1 and the cache device 3, while the temperature and pressure monitoring and control device 5 on the cooling device 2 is arranged on the bromine vapor conveying pipe between the first cooling pipe 21 and the second cooling pipe 22. At the same time, a temperature and pressure monitoring and control device 5 is also provided on the pipeline connecting the second cooling pipe 22 and the exhaust gas treatment device 4.

[0071] In this embodiment, valves (not shown) are installed at the pipe connections between the vaporizer 1, cooling device 2, and buffer device 3 to control the flow rate of bromine in the bromine delivery device. The valves enable precise control of the flow rate of bromine in the bromine delivery device, ensuring stable system operation. Adjusting the valves controls the flow direction and flow rate of the fluid, preventing excessive or slow flow rates from affecting the gasification efficiency and cooling effect of the bromine. The valves also serve as a safety feature. For example, if the system pressure or temperature is abnormal, the valves can be closed to cut off the flow and prevent accidents. Furthermore, the valves provide a good sealing performance, effectively preventing bromine leakage and ensuring safe operation.

[0072] In a specific embodiment, the gasification device 1 is heated by hot water at 90°C, and heat is transferred to the liquid bromine through the jacket 14. The temperature of the liquid bromine transported into the gasification device 1 is about 60°C and the pressure is about 5 kPa(g). The gasification device 1 can vaporize 100 kg of liquid bromine per hour to convert it into bromine vapor. The bromine vapor is vertically transported upward to the cooling device 2, where it is liquefied into liquid bromine (i.e., bromine). The liquid bromine is then transported to the buffer device 3. The tail gas treatment device 4 can further liquefy the bromine vapor that has not been liquefied by the cooling device 2 to obtain bromine for recovery. The recovered bromine can be re-introduced into the outer tube as the input of the gasification device 1, and the bromine is reused. This process results in virtually no bromine loss.

[0073] The various embodiments in this specification are described in a progressive manner. References to the common and similar parts between the various embodiments are sufficient. Each embodiment focuses on the differences from the other embodiments. In particular, the device embodiments are generally similar to the method embodiments, so their description is relatively simple. For relevant parts, references to the method embodiments are sufficient.

[0074] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A bromine delivery device, characterized in that, The bromine delivery device comprises: a gasification device, a cooling device and a buffer device which are sequentially connected and communicated with each other through pipelines; The gasification device comprises a first liquid inlet and a first gas outlet, wherein the first liquid inlet is used to receive bromine transported by an external tube; The first gas outlet is provided at the top of the gasification device, and the first gas outlet is used to output the bromine vapor obtained by gasification of the gasification device vertically upward; The cooling device includes a first cooling pipe and a second cooling pipe, the first cooling pipe and the second cooling pipe are connected in series via a bromine vapor delivery pipe; the first cooling pipe is used to receive the bromine vapor output from the first gas outlet and cool the bromine vapor to liquefy it; the second cooling pipe is used to perform secondary cooling and liquefaction on the bromine vapor not liquefied by the first cooling pipe; The cache device includes a cache device liquid inlet, and the cache device liquid inlet is used to pass the collected liquefied bromine into the cache device; The bromine delivery device further includes a tail gas treatment device, which is communicated with the second cooling pipe and is used for recovering bromine vapor.

2. The bromine delivery device according to claim 1, wherein The first cooling pipe and the second cooling pipe respectively include an air inlet, an air outlet and a liquid outlet; The air outlet of the first cooling pipe is connected to the air inlet of the second cooling pipe; The air inlet of the first cooling pipe is connected to the first air outlet; The liquid outlet of the first cooling pipe and the liquid outlet of the second cooling pipe are respectively communicated with the liquid inlet of the buffer device.

3. The bromine delivery device according to claim 2, wherein The second cooling pipe further includes a first gas phase balance port; the cache device includes a second gas phase balance port, and the first gas phase balance port and the second gas phase balance port are connected through a pipeline.

4. The bromine delivery device according to claim 1, wherein The gasification device further includes a second liquid inlet, which is used to introduce a heating medium into the gasification device; a jacket is provided inside the gasification device, and the jacket is configured to accommodate the heating medium introduced into the gasification device.

5. The bromine delivery device according to claim 4, characterized in that A heating element is installed outside the gasification device, and the heating element is used to maintain the temperature inside the gasification device.

6. The bromine delivery device according to claim 1, wherein The gasification device, the cooling device and the buffer device are all provided with a temperature and pressure monitoring and control device, and the temperature and pressure monitoring and control device is used to monitor and control the temperature and pressure in the components in real time.

7. The bromine delivery device according to claim 1, wherein Valves are provided at the pipe connections between the gasification device, the cooling device and the buffer device, for controlling the flow rate of bromine in the bromine delivery device.

8. The bromine delivery device according to claim 1, wherein The height at which the cooling device is set is higher than the height at which the gasification device is set and the height at which the cache device is set, and the height at which the cache device is set is higher than the height at which the gasification device is set.

9. The bromine delivery device according to claim 1, wherein The gasification device is an enamel kettle.

10. The bromine delivery device according to claim 1, wherein The cooling device is a silicon carbide shell and tube heat exchanger.

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