Nitric acid pipeline system capable of eliminating pipeline and maintenance potential safety hazards

Abstract

The utility model relates to the technical field of chemical production, in particular to a nitric acid pipeline system capable of eliminating pipeline and maintenance potential safety hazards. The utility model discloses a nitric acid pipeline system capable of eliminating pipeline and maintenance potential safety hazards, which comprises at least one guiding and spraying mechanism used for collecting acid liquor discharged from a conveying mechanism; the collecting mechanism is used for receiving the acid liquor from the guiding and spraying mechanism; the discharging mechanism is used for guiding the acid liquor of the guiding and spraying mechanism into the collecting mechanism; the discharge mechanism comprises at least one branch pipeline and a main discharge pipeline; and the branch pipelines and the main discharge pipeline are hard pipelines. According to the nitric acid pipeline system, the hard pipeline is adopted to replace a traditional hose for connection, the problem that the traditional hose is prone to aging and falling off in the long-term use process is solved, and environmental pollution caused by hose damage or falling off and the safety threat to field operators are reduced.

Description

Technical Field

[0001] This application relates to the technical field of chemical production, and in particular to a nitric acid pipeline system that eliminates safety hazards in pipelines and maintenance. Background Technology

[0002] In modern chemical production, nitric acid is an important chemical raw material, and the safety of its production, storage, and transportation is paramount. Especially in the acid tank area of ​​a nitric acid workshop, the installation of pumps, drainage systems, and pipelines directly affects production efficiency and personnel safety. Traditional nitric acid pipeline systems mostly use flexible hoses for discharge; however, with the expansion of production scale and the increase in production requirements, this connection method has gradually revealed the following technical problems:

[0003] Significant safety hazards: Hoses are prone to aging and detachment during long-term use, especially when discharging highly corrosive nitric acid. If the hose breaks or detaches, it will not only cause environmental pollution, but may also cause serious injury to on-site operators.

[0004] High maintenance costs: As a consumable part, hoses need to be replaced regularly, which increases production costs and maintenance workload. Furthermore, due to the complexity of hose connections, maintenance often requires disassembling the entire pipeline system, increasing operational difficulty and time costs.

[0005] Low emission efficiency: The emission method of hose connection is often not stable enough, and problems such as poor emission or leakage are prone to occur, which affects production efficiency and emission effect.

[0006] Therefore, this application proposes a nitric acid pipeline system that eliminates safety hazards in pipelines and maintenance. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this application provides a nitric acid pipeline system that eliminates safety hazards in pipelines and maintenance. By using rigid pipes to replace traditional flexible hose connections, it solves the problem of traditional flexible hoses being prone to aging and falling off during long-term use, and reduces environmental pollution and safety threats to on-site operators caused by hose damage or falling off.

[0008] The technical solution adopted in this application is as follows:

[0009] A nitric acid pipeline system for eliminating pipeline and maintenance safety hazards includes at least one draining mechanism for collecting acid discharged from the conveying mechanism;

[0010] A collection mechanism for receiving acid from the drainage mechanism;

[0011] The discharge mechanism is used to guide the acid from the drainage mechanism to the collection mechanism;

[0012] The discharge mechanism includes at least one branch pipe and a main discharge pipe; the end of the branch pipe is connected to the main discharge pipe, and the front end of the branch pipe is connected to the draining mechanism; the branch pipe and the main discharge pipe are rigid pipes.

[0013] In one or more technical solutions, the rigid pipe is made of a rigid corrosion-resistant material.

[0014] In one or more technical solutions, the rigid pipe is made of 304 stainless steel.

[0015] In one or more technical solutions, the draining mechanism includes multiple independent drain ports and drain pipes independently connected to the drain ports, the end of the drain pipe is connected to a separate branch pipe, and the front end of the drain port is connected to a conveying mechanism.

[0016] In one or more technical solutions, the drain pipe is made of rigid pipe.

[0017] In one or more technical solutions, the conveying mechanism includes a low-pressure acid pump or a dilute acid pump connected to the nitric acid storage tank; the front end of the drain outlet is connected to the low-pressure acid pump or the dilute acid pump.

[0018] In one or more technical solutions, a control valve is installed on the branch pipe and a control valve is installed on the main discharge pipe.

[0019] In one or more technical solutions, the branch pipeline is connected to the main discharge pipeline by being buried underground.

[0020] In one or more technical solutions, the collection mechanism is a nitric acid trough.

[0021] In one or more technical solutions, the main discharge pipeline is connected to an underground nitric acid trough.

[0022] The beneficial effects of this application are as follows:

[0023] The nitric acid pipeline system described in this application uses rigid pipes instead of traditional flexible hose connections. These rigid pipes are typically made of corrosion-resistant materials such as 304 stainless steel. This solves the problem of traditional hoses aging and falling off easily during long-term use, and reduces environmental pollution and safety threats to on-site operators caused by hose damage or detachment.

[0024] The nitric acid pipeline system described in this application collects the acid discharged from the conveying mechanism through at least one draining mechanism, and guides the acid into the collection mechanism through a discharge mechanism including at least one branch pipe and a main discharge pipe. The branch pipe and the main discharge pipe are made of rigid pipes, which not only improves the discharge efficiency, but also makes the rigid pipes more durable and less prone to damage than flexible pipes, thereby reducing maintenance costs and workload and simplifying the maintenance process. Attached Figure Description

[0025] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a structural schematic diagram of a nitric acid pipeline system for eliminating pipeline and maintenance safety hazards as described in this application;

[0027] Figure 2 This is a schematic diagram of the material flow during operation of a nitric acid pipeline system described in this application, which eliminates safety hazards in pipelines and maintenance.

[0028] The components include: 1. Drainage mechanism; 11. Drainage outlet; 12. Drainage pipe; 2. Conveying mechanism; 21. Low-pressure acid pump; 22. Dilute acid pump; 3. Collection mechanism; 31. Nitric acid tank; 4. Discharge mechanism; 41. Branch pipe; 42. Main discharge pipe; 43. Control valve; 5. Nitric acid storage tank. Detailed Implementation

[0029] The following will clearly and completely describe the concept, specific structure, and resulting technical effects of this application in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this application. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this application can be combined interactively without contradicting each other.

[0030] like Figure 1 As shown, a nitric acid pipeline system for eliminating pipeline and maintenance safety hazards includes at least one draining mechanism 1 for collecting acid discharged from the conveying mechanism 2.

[0031] Collection mechanism 3 is used to receive acid from drainage mechanism 1;

[0032] Discharge mechanism 4 is used to guide the acid from the draining mechanism 1 into the collection mechanism 3;

[0033] The discharge mechanism 4 includes at least one branch pipe 41 and a main discharge pipe 42; the end of the branch pipe 41 is connected to the main discharge pipe 42, and the front end of the branch pipe 41 is connected to the draining mechanism 1; the branch pipe 41 and the main discharge pipe 42 are rigid pipes.

[0034] Specifically, the drainage system is primarily responsible for collecting the acid discharged from the conveying mechanism, ensuring that the discharged acid is safely and effectively guided to subsequent treatment stages. The drainage system reduces the possibility of direct discharge into the ground or other environments, thereby improving safety and protecting the environment.

[0035] A collection facility is used to receive all acid from the drainage system and store it in one place for subsequent treatment. This helps to simplify management processes and reduce environmental pollution.

[0036] The discharge mechanism transfers the acid collected from the shower system to the collection system. The discharge mechanism uses pipes made of rigid, corrosion-resistant materials, designed to provide a more stable and reliable transmission path while reducing maintenance costs.

[0037] Rigid pipes are pipes made of strong materials with fixed shapes and dimensions. Compared to flexible hoses, rigid pipes are less prone to deformation and can withstand higher pressures. In chemical production environments, especially for transporting corrosive media such as nitric acid, selecting the appropriate rigid pipe material is crucial to ensure the safety and reliability of the system.

[0038] In this application, a rigid pipe is used. A rigid pipe is a pipe made of metal or other hard materials. The rigid pipe has a fixed shape and size and is suitable for the transportation of nitric acid.

[0039] In one or more technical solutions, the rigid pipe is made of a hard, corrosion-resistant material. Specifically, the rigid pipe is made of 304 stainless steel, 304L stainless steel, 316 stainless steel, or 316L stainless steel. These types of stainless steel have good corrosion resistance and are suitable for conveying highly corrosive media such as nitric acid. From an economic perspective, 304 stainless steel is preferred.

[0040] By employing the aforementioned technical solutions and utilizing materials with enhanced corrosion resistance (such as 304 stainless steel), leaks caused by pipeline corrosion are reduced, thereby protecting operator safety and preventing environmental pollution. Furthermore, compared to traditional flexible hose connections, rigid pipes are less prone to aging or damage, extending the system's lifespan and reducing maintenance costs. In addition, rigid pipes provide a more stable and efficient transmission path, reducing blockages or leaks during the discharge process and improving overall work efficiency.

[0041] In one or more technical solutions, the draining mechanism 1 includes multiple independent drain ports 11 and drain pipes 12 independently connected to the drain ports 11. The end of the drain pipe 12 is connected to a separate branch pipe 41, and the front end of the drain port 11 is connected to the conveying mechanism 2.

[0042] In one or more technical solutions, the drain tube 12 is made of 304 stainless steel.

[0043] Specifically, the drain pipe uses a rigid pipe of the same material as the branch pipe and the main discharge pipe. The drain pipe 12 can provide a stable and efficient fluid transmission path, reducing the leakage and blockage problems that may occur with traditional hoses and improving the efficiency of the discharge process.

[0044] In one or more technical solutions, the conveying mechanism 2 includes a low-pressure acid pump 21 or a dilute acid pump 22 connected to the nitric acid storage tank 5; the front end of the drain port 11 is connected to the low-pressure acid pump 21 or the dilute acid pump 22.

[0045] Specifically, the conveying mechanism typically includes one or more low-pressure acid pumps, dilute acid pumps, or high-pressure acid pumps. The choice of low-pressure, dilute, or high-pressure pump depends on the nitric acid concentration and the required conveying conditions. The pump bodies of the low-pressure, dilute, or high-pressure acid pumps are made of corrosion-resistant materials to adapt to the characteristics of nitric acid, a highly corrosive medium, thereby extending their service life and reducing the failure rate.

[0046] Low-pressure acid pumps, dilute acid pumps, or high-pressure acid pumps are installed near the nitric acid storage tank. The front end of the low-pressure acid pump, dilute acid pump, or high-pressure acid pump is directly connected to the nitric acid storage tank, and the stored nitric acid is introduced into the pump body through the pipeline. The rear end of the pump body is connected to the drainage mechanism through the pipeline. In particular, each independent drainage port ensures that the acid solution can be evenly distributed to each drainage point.

[0047] In one or more technical solutions, a control valve 43 is provided on the branch pipe 41 and on the main discharge pipe 42.

[0048] Therefore, through the above technical solution, the control valves installed on branch pipelines and main discharge pipelines allow operators to adjust or cut off fluid flow as needed, enhancing the system's flexibility and safety. Different types and specifications of valves can be selected according to actual needs to adapt to usage requirements under different conditions. Installation at critical nodes in the pipeline facilitates management and rapid response in emergencies.

[0049] In one or more technical solutions, the branch pipe 41 is connected to the main discharge pipe 42 by being buried underground.

[0050] Therefore, the above-mentioned technical solution, which involves burying some pipelines underground, primarily aims to further enhance the system's stability and safety, and reduce the impact of external factors on the pipelines. This method is suitable for sections that are not easily damaged by physical forces and require long-term stable operation. More specifically, this arrangement is particularly suitable for sections where the main discharge pipeline leads to the nitric acid storage tank, ensuring the safety of long-distance transportation.

[0051] In one or more technical solutions, the collection mechanism 3 is a nitric acid trough 31.

[0052] Therefore, by using the above technical solution, the collection mechanism 3 is set as a nitric acid tank 31, which can centrally collect the acid liquid discharged from the drainage mechanism and facilitate subsequent treatment or recycling, thus helping to reduce environmental pollution and improve resource utilization.

[0053] In one or more technical solutions, the main discharge pipe 42 is connected to an underground nitric acid trough 31.

[0054] Specifically, nitric acid tanks 31 are typically made of corrosion-resistant materials (such as 304 stainless steel), which can effectively resist the corrosion of nitric acid and ensure the reliability and safety of long-term use; the underground burial design increases the stability of the system and reduces the impact of external factors on the pipeline, such as mechanical damage or weather changes.

[0055] Specifically, in this application, the low-pressure acid pump, dilute acid pump, and high-pressure acid pump can be common fluoroplastic centrifugal pumps or magnetically driven pumps; the nitric acid tank can be a large-capacity stainless steel tank; the control valve can be a manual valve or an automatic valve, such as a ball valve or a gate valve, and the material must match the pipeline, commonly made of 304 stainless steel; the nitric acid storage tank is a large stainless steel or fiberglass container equipped with monitoring equipment such as a thermometer, level gauge, pressure gauge, and nitrogen oxide alarm.

[0056] Specifically, such as Figure 2 As shown, the nitric acid pipeline system operates as follows:

[0057] Turn on the low-pressure acid pump 21 or the dilute acid pump 22 to start drawing nitric acid from the nitric acid storage tank 5.

[0058] After nitric acid is pumped to the production line for use, excess or acid that needs to be discharged enters the drain pipe 12 through the drain outlet 11.

[0059] The acid in the drain pipe 12 flows into the branch pipe 41 and then collects into the main discharge pipe 42.

[0060] Ultimately, all the acid is guided through the main discharge pipe 42 to the nitric acid tank 31 for storage, awaiting further treatment or recycling.

[0061] Operators can adjust fluid flow or cut off specific paths using control valve 43 to meet different production needs.

[0062] The above is a detailed description of the preferred embodiments of this application. However, the invention of this application is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A nitric acid pipeline system that eliminates safety hazards in pipelines and maintenance, characterized in that, It includes at least one drainage mechanism (1) for collecting acid discharged from the conveying mechanism (2); Collection mechanism (3) for receiving acid from drainage mechanism (1); Discharge mechanism (4) is used to introduce the acid from the draining mechanism (1) into the collection mechanism (3); The discharge mechanism (4) includes at least one branch pipe (41) and a main discharge pipe (42); the end of the branch pipe (41) is connected to the main discharge pipe (42), and the front end of the branch pipe (41) is connected to the draining mechanism (1); the branch pipe (41) and the main discharge pipe (42) are rigid pipes.

2. The nitric acid pipeline system according to claim 1, characterized in that, The rigid pipe is made of a hard, corrosion-resistant material.

3. The nitric acid pipeline system according to claim 1, characterized in that, The rigid pipe is made of 304 stainless steel.

4. The nitric acid pipeline system according to claim 1, characterized in that, The draining mechanism (1) includes multiple independent drain ports (11) and drain pipes (12) independently connected to the drain ports (11). The end of the drain pipe (12) is connected to a separate branch pipe (41), and the front end of the drain port (11) is connected to a conveying mechanism (2).

5. The nitric acid pipeline system according to claim 4, characterized in that, The drain pipe (12) is a rigid pipe.

6. The nitric acid pipeline system according to claim 4, characterized in that, The conveying mechanism (2) includes a low-pressure acid pump (21) or a dilute acid pump (22) connected to the nitric acid storage tank (5); the front end of the drain port (11) is connected to the low-pressure acid pump (21) or the dilute acid pump (22).

7. The nitric acid pipeline system according to claim 1, characterized in that, A control valve (43) is provided on the branch pipe (41) and on the main discharge pipe (42).

8. The nitric acid pipeline system according to claim 1, characterized in that, The branch pipe (41) is connected to the main discharge pipe (42) by being buried underground.

9. The nitric acid pipeline system according to claim 1, characterized in that, The collection mechanism (3) is a nitric acid tank (31).

10. The nitric acid pipeline system according to claim 9, characterized in that, The main discharge pipe (42) is connected to the underground nitric acid tank (31).

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