Bromine loading and leakage treatment process system in bromine production

Abstract

The utility model relates to a bromine loading and leakage treatment process system in bromine production, and belongs to the technical field of inorganic chemical equipment. The system comprises steel lining polytetrafluoroethylene tanks, magnetic pumps A and diaphragm pumps, the multiple steel lining polytetrafluoroethylene tanks are arranged side by side, the bottoms of the multiple steel lining polytetrafluoroethylene tanks are connected with the magnetic pumps A through conveying pipelines, and liquid outlets of the magnetic pumps A are connected with a loading and transporting vehicle and the tops of the steel lining polytetrafluoroethylene tanks through pipelines. The top of the steel lining tetrafluoride tank is connected with a bromine inlet pipeline, a pressurizing pipeline, an emptying pipeline and a loading and transporting pipeline respectively, the bromine inlet pipeline is connected with a bromine production workshop, the pressurizing pipeline is connected with an air compressor, the emptying pipeline is connected with a distillation recovery tower or a bromine gas absorption tower, and one end of the loading and transporting pipeline extends to the bottom of the steel lining tetrafluoride tank. The other end of the loading and transporting pipeline is connected with a loading and transporting vehicle through a diaphragm pump. According to the bromine conveying device, bromine is conveyed through cooperation of the diaphragm pump, the magnetic pump and other components, the conveying efficiency is improved on the premise that normal operation of the device is guaranteed, and the bromine conveying stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to a bromine loading and leakage treatment process system in bromine production, belonging to the technical field of inorganic chemical equipment. Background Art

[0002] Bromine is a reddish-brown, fuming liquid with a relative density of 3.119 (20°C), a melting point of -7.2°C, and a boiling point of 58.78°C. Glass-lined steel tanks are currently the most common bromine storage containers and are also used in bromine plants. The selection and design of these tanks take into account the highly corrosive nature of bromine, ensuring safe and stable storage. However, the disadvantage of storing bromine in glass-lined tanks is that larger tanks increase the inherent defect rate, shorten the service life, and are more susceptible to equipment defects, thus affecting product quality.

[0003] When storing bromine in a glass-lined storage tank, if the equipment is perforated and bromine leaks, it is easy to cause safety accidents and cause large economic losses. Typical defects of glass-lined equipment are caused by mechanical impact, corrosion, wear, thermal shock and thermal stress, while atypical defects include "trapezoidal" defects, electrostatic discharge defects and defects caused by nascent hydrogen corrosion. These defects not only affect the service life of the equipment, but may also affect the quality and safety of the stored materials. In addition, glass-lined storage tanks are designed for use in normal pressure environments and do not withstand any external pressure. The method of loading and unloading bromine is single and inefficient, and once a fault occurs, the equipment can only be shut down for repair. For this reason, the present utility model is proposed. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the utility model provides a bromine loading and leakage treatment process system for bromine production. The system utilizes a steel-lined polytetrafluoroethylene tank to store bromine and uses a diaphragm pump, a magnetic pump and other components to transport the bromine. While ensuring the normal operation of the device, the transport efficiency is improved and the stability of bromine transport is guaranteed. At the same time, bromine leakage can be quickly handled, thereby reducing economic losses and avoiding environmental pollution.

[0005] The technical solution of the utility model is as follows:

[0006] A bromine loading and leakage treatment process system in bromine production comprises a steel-lined polytetrafluoroethylene tank, a magnetic pump A and a diaphragm pump. Several steel-lined polytetrafluoroethylene tanks are arranged in parallel, the bottoms of the several steel-lined polytetrafluoroethylene tanks are connected to the magnetic pump A via a delivery pipe, the liquid outlets of the magnetic pump A are respectively connected to a loading vehicle and the tops of the steel-lined polytetrafluoroethylene tanks via pipes, the tops of the steel-lined polytetrafluoroethylene tanks are respectively connected to a bromine inlet pipe, a pressurizing pipe, an exhaust pipe and a loading pipe, the bromine inlet pipe is connected to a bromine production workshop to replenish bromine to the steel-lined polytetrafluoroethylene tanks, the pressurizing pipe is connected to an air compressor, the exhaust pipe is connected to a distillation recovery tower or a bromine gas absorption tower, one end of the loading pipe extends to the bottom of the steel-lined polytetrafluoroethylene tank, and the other end of the loading pipe is connected to the loading vehicle via a diaphragm pump.

[0007] According to the preferred embodiment of the present invention, at least two steel-lined PTFE tanks are provided.

[0008] According to the preferred embodiment of the present invention, a solenoid valve A is provided at the connection between the bromine inlet pipe and the steel-lined PTFE tank, a solenoid valve B is provided at the connection between the pressurized pipe and the steel-lined PTFE tank, a solenoid valve C is provided at the connection between the shipping pipe and the steel-lined PTFE tank, and a hand valve is provided at the connection between the emptying pipe and the steel-lined PTFE tank.

[0009] According to the preferred embodiment of the present invention, a remote pressure gauge is provided on the top of the steel-lined PTFE tank, a solenoid valve E is provided at the outlet of the diaphragm pump, a parallel pipe is provided on one side of the diaphragm pump and the solenoid valve E, and a solenoid valve D is provided on the parallel pipe.

[0010] Preferably, according to the present invention, a solenoid valve F and a cumulative flow meter are provided on the pipeline for loading bromine into the shipping vehicle, a mobile radar level gauge is provided on the shipping vehicle, and a distillation recovery tower or a bromine gas absorption tower is connected to the top of the shipping vehicle.

[0011] According to the preferred embodiment of the present invention, a magnetic pump B is provided in parallel on one side of the magnetic pump, a solenoid valve G is provided on the connecting pipe between the magnetic pump A and the magnetic pump B and the top of the steel-lined PTFE tank, and a solenoid valve H is provided on the connecting pipe between the magnetic pump A and the magnetic pump B and the shipping vehicle. The pipeline delivery rate is increased by adding an additional magnetic pump.

[0012] When in use, the diaphragm pump is started to extract bromine from the steel-lined PTFE tank for loading. The shipping volume is monitored by the cumulative flow meter and the mobile radar level gauge. After the loading is completed, the diaphragm pump is stopped, and the solenoid valves E and F are closed. The transport pipeline where the diaphragm pump is located is the primary pipeline, serving as the main shipping pipeline.

[0013] If the diaphragm pump is accidentally damaged or the remote pressure gauge detects that the air pressure in the steel-lined PTFE tank is lower than the set threshold, the diaphragm pump will stop and the air compressor will be used to increase the pressure to make the air pressure in the steel-lined PTFE tank not lower than 0.3MPa. Then the solenoid valve D will open and the bromine in the steel-lined PTFE tank will be loaded into the truck through the solenoid valve D. The transportation pipeline where the solenoid valve D is located is the secondary backup pipeline.

[0014] If problems occur in both the primary pipeline and the secondary backup pipeline, the magnetic pump A and the solenoid valve H are opened for loading, and the transport pipeline where the magnetic pump A and the solenoid valve H are located serves as the tertiary backup pipeline;

[0015] If a certain steel-lined PTFE tank leaks, the magnetic pump A, magnetic pump B and solenoid valve G will be opened to transfer the bromine in the leaking steel-lined PTFE tank to the remaining steel-lined PTFE tanks.

[0016] The vaporized bromine gas in the steel-lined PTFE tank or the transport vehicle enters the distillation recovery bottle or the bromine gas recovery tower to reduce environmental pollution.

[0017] The beneficial effects of the present invention are:

[0018] The utility model utilizes a steel-lined polytetrafluoroethylene tank to store bromine, which has a high structural strength and can withstand pressure. The bromine is transported by a diaphragm pump, a magnetic pump, and a solenoid valve, etc., and three shipping pipelines are provided to ensure the continuity and stability of loading and improve the transportation efficiency. At the same time, when bromine leaks, it can be quickly handled to reduce economic losses and avoid environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] In the figure: 1. Steel-lined PTFE tank, 2. Remote pressure gauge, 3. Solenoid valve A, 4. Solenoid valve B, 5. Solenoid valve C, 6. Diaphragm pump, 7. Solenoid valve D, 8. Solenoid valve E, 9. Cumulative flow meter, 10. Solenoid valve F, 11. Mobile radar level gauge, 12. Magnetic pump A, 13. Solenoid valve G, 14. Solenoid valve H, 15. Magnetic pump B, 16. Delivery pipeline, 17. Hand valve, 18. Bromine inlet pipeline, 19. Pressurized pipeline, 20. Exhaust pipeline, 21. Shipping pipeline, 22. Distillation recovery tower, 23. Bromine gas absorption tower. DETAILED DESCRIPTION

[0021] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings, but is not limited thereto.

[0022] Example 1:

[0023] like Figure 1As shown, this embodiment provides a bromine loading and leakage treatment process system in bromine production, including a steel-lined PTFE tank 1, a magnetic pump A12 and a diaphragm pump 6, wherein four steel-lined PTFE tanks are arranged in parallel, and the bottoms of the four steel-lined PTFE tanks are connected to the magnetic pump A12 through a delivery pipe 16, and the liquid outlet of the magnetic pump A12 is connected to the shipping vehicle and the top of the steel-lined PTFE tank 1 through pipes, respectively. The top of the steel-lined PTFE tank 1 is respectively connected to a bromine inlet pipe 18, a pressurizing pipe 19, an emptying pipe 20 and a shipping pipe 21, wherein the bromine inlet pipe 18 is connected to a bromine production workshop to replenish bromine to the steel-lined PTFE tank, the pressurizing pipe 19 is connected to an air compressor, and the emptying pipe 20 is connected to a distillation recovery tower 22 or a bromine gas absorption tower 23. One end of the shipping pipe 21 extends to the bottom of the steel-lined PTFE tank 1, and the other end of the shipping pipe is connected to the shipping vehicle through a diaphragm pump 6.

[0024] A solenoid valve A3 is provided at the connection between the bromine inlet pipe 18 and the steel-lined PTFE tank 1, a solenoid valve B4 is provided at the connection between the pressurizing pipe 19 and the steel-lined PTFE tank 1, a solenoid valve C5 is provided at the connection between the shipping pipe and the steel-lined PTFE tank, and a hand valve 17 is provided at the connection between the exhaust pipe 20 and the steel-lined PTFE tank 1.

[0025] A remote pressure gauge 2 is provided on the top of the steel-lined PTFE tank 1, a solenoid valve E8 is provided at the outlet of the diaphragm pump 6, a parallel pipe is provided on one side of the diaphragm pump 6 and the solenoid valve E8, and a solenoid valve D7 is provided on the parallel pipe.

[0026] The pipeline for loading bromine into the shipping vehicle is provided with a solenoid valve F10 and a cumulative flow meter 9, the shipping vehicle is provided with a mobile radar level gauge 11, and the top of the shipping vehicle is connected to a distillation recovery tower 22 or a bromine gas absorption tower 23.

[0027] A magnetic pump B15 is installed in parallel with magnetic pump 12. A solenoid valve G13 is installed on the pipe connecting magnetic pumps A12 and B15 to the top of the steel-lined PTFE tank 1. A solenoid valve H14 is installed on the pipe where the outlets of magnetic pumps A12 and B15 are located. The addition of additional magnetic pumps increases the pipeline conveying rate.

[0028] When in use, the diaphragm pump is started to extract bromine from the steel-lined PTFE tank for loading. The shipping volume is monitored by the cumulative flow meter and the mobile radar level gauge. After the loading is completed, the diaphragm pump is stopped, and the solenoid valves E and F are closed. The transport pipeline where the diaphragm pump is located is the primary pipeline, serving as the main shipping pipeline.

[0029] If the diaphragm pump is accidentally damaged or the remote pressure gauge detects that the air pressure in the steel-lined PTFE tank is lower than the set threshold, the diaphragm pump will stop and the air compressor will be used to increase the pressure to make the air pressure in the steel-lined PTFE tank not lower than 0.3MPa. Then the solenoid valve D will open and the bromine in the steel-lined PTFE tank will be loaded into the truck through the solenoid valve D. The transportation pipeline where the solenoid valve D is located is the secondary backup pipeline.

[0030] If problems occur in both the primary pipeline and the secondary backup pipeline, the magnetic pump A and the solenoid valve H are opened for loading, and the transport pipeline where the magnetic pump A and the solenoid valve H are located serves as the tertiary backup pipeline;

[0031] If a steel-lined PTFE tank leaks, the magnetic pump A, magnetic pump B and solenoid valve G will open to quickly transfer the bromine in the leaking steel-lined PTFE tank to the remaining steel-lined PTFE tanks;

[0032] The vaporized bromine gas in the steel-lined PTFE tank or the transport vehicle enters the distillation recovery bottle or the bromine gas recovery tower to reduce environmental pollution.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bromine loading and leakage treatment process system in bromine production, characterized in that: It includes a steel-lined PTFE tank, a magnetic pump A and a diaphragm pump, wherein several steel-lined PTFE tanks are arranged in parallel, the bottoms of several steel-lined PTFE tanks are connected to the magnetic pump A through a delivery pipe, the liquid outlet of the magnetic pump A is connected to a shipping vehicle and the top of each steel-lined PTFE tank through a pipe, the top of the steel-lined PTFE tank is connected to a bromine inlet pipe, a pressurizing pipe, an emptying pipe and a shipping pipe, the bromine inlet pipe is connected to a bromine production workshop, the pressurizing pipe is connected to an air compressor, the emptying pipe is connected to a distillation recovery tower or a bromine gas absorption tower, one end of the shipping pipe extends to the bottom of the steel-lined PTFE tank, and the other end of the shipping pipe is connected to a shipping vehicle through a diaphragm pump.

2. The bromine loading and leakage treatment process system in bromine production according to claim 1, characterized in that: There are at least 2 steel-lined PTFE tanks.

3. The bromine loading and leakage treatment process system in bromine production according to claim 2, characterized in that: A solenoid valve A is installed at the connection between the bromine inlet pipe and the steel-lined PTFE tank, a solenoid valve B is installed at the connection between the pressurized pipe and the steel-lined PTFE tank, a solenoid valve C is installed at the connection between the shipping pipe and the steel-lined PTFE tank, and a hand valve is installed at the connection between the exhaust pipe and the steel-lined PTFE tank.

4. The bromine loading and leakage treatment process system in bromine production according to claim 3, characterized in that: A remote pressure gauge is provided on the top of the steel-lined PTFE tank, a solenoid valve E is provided at the outlet of the diaphragm pump, a parallel pipe is provided on one side of the diaphragm pump and the solenoid valve E, and a solenoid valve D is provided on the parallel pipe.

5. The bromine loading and leakage treatment process system in bromine production according to claim 4, characterized in that: The pipeline for loading bromine into the shipping vehicle is provided with a solenoid valve F and a cumulative flow meter, the shipping vehicle is provided with a mobile radar level gauge, and the top of the shipping vehicle is connected to a distillation recovery tower or a bromine gas absorption tower.

6. The bromine loading and leakage treatment process system in bromine production according to claim 5, characterized in that: A magnetic pump B is installed in parallel on one side of the magnetic pump. A solenoid valve G is installed on the connecting pipe between the magnetic pump A and the magnetic pump B and the top of the steel-lined PTFE tank. A solenoid valve H is installed on the connecting pipe between the magnetic pump A and the magnetic pump B and the shipping vehicle.

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