Power gas source pipeline system for efficient maintenance of a gasification device

Abstract

The utility model discloses a kind of power gas source pipeline systems for efficient overhaul of gasification device, including air buffer tank, plate frame, slag water frame and gasification framework;Air separation system is connected with the air buffer tank by compressed air pipeline, the air buffer tank is connected with the plate frame by squeezing gas source pipeline;Pressure regulating valve is provided on the compressed air pipeline, and the compressed air pipeline downstream of the pressure regulating valve is connected with overhaul gas source pipeline, and the overhaul gas source pipeline is connected with the quick coupling provided on the slag water frame and the gasification framework, to provide overhaul gas source for slag water frame and gasification framework.Advantages are: by adding overhaul gas source pipeline, break through original instrument air pressure limit, make pneumatic wrench can efficiently handle large size bolt, shorten overhaul time.

Description

Technical Field

[0001] This utility model relates to the field of chemical plant maintenance technology, and in particular to a power gas source pipeline system for efficient maintenance of gasification plants. Background Technology

[0002] Currently, during regular burner replacements and system overhauls of the gasification unit, pneumatic wrenches are extensively used to disassemble the gasification frame, slag and slurry frame tanks and pipelines, as well as flanges, plugs, manholes, and short sections of the equipment. However, due to the limited air pressure of only 0.65 MPa on-site instruments, pneumatic tools are inefficient, only capable of pre-tightening nuts smaller than 46 mm, and unable to handle large bolts. A single overhaul requires approximately 1618 man-hours, and routine maintenance accounts for 50% of daily maintenance workload throughout the year. Furthermore, the concentrated handover of equipment leads to overwork of maintenance personnel, resulting in high labor intensity, low efficiency, and the risk of delays in maintenance schedules. Insufficient gas supply pressure in the existing unit has become a bottleneck for maintenance and urgently requires technical improvement. Utility Model Content

[0003] The purpose of this invention is to provide a power gas supply pipeline system for efficient maintenance of gasification devices, thereby solving the aforementioned problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A high-efficiency maintenance power air supply pipeline system for a gasification unit includes an air buffer tank, a plate and frame structure, a slag and water frame structure, and a gasification frame structure. An air separation system is connected to the air buffer tank via a compressed air pipeline, and the air buffer tank is connected to the plate and frame structure via a pressurized air supply pipeline. A pressure regulating valve is installed on the compressed air pipeline, and a maintenance air supply pipeline is connected downstream of the pressure regulating valve to the compressed air pipeline. The maintenance air supply pipeline is connected to quick-connect fittings installed on the slag and water frame structure and the gasification frame structure to provide maintenance air for the slag and water frame structure and the gasification frame structure.

[0006] Preferably, the slag and water frame includes four floors, and each floor is provided with two quick connectors at horizontal intervals.

[0007] Preferably, the gasification frame includes ten floors. Each floor from the first to the eighth floor has two quick connectors arranged horizontally at intervals. The ninth floor has three rows of quick connectors arranged horizontally at intervals. Each row of quick connectors includes four groups of quick connectors arranged vertically at intervals. Each group of quick connectors includes two quick connectors arranged horizontally at intervals. The tenth floor has three quick connectors arranged horizontally at intervals.

[0008] Preferably, the quick connector is equipped with a dust cover.

[0009] Preferably, a front switch valve, a rear switch valve, and a buffer tank inlet switch valve are sequentially and spaced apart on the compressed air pipeline, and the pressure regulating valve is located between the front switch valve and the rear switch valve.

[0010] Preferably, a buffer tank outlet switch valve is installed on the press gas source pipeline.

[0011] Preferably, a maintenance gas supply switch valve is installed on the maintenance gas supply pipeline.

[0012] Preferably, a vent line is connected to the compressed air pipeline, and the connection point between the vent line and the compressed air pipeline is located between the rear switch valve and the buffer tank inlet switch valve; a vent switch valve is provided on the vent line.

[0013] The beneficial effects of this utility model are: 1. By adding a new maintenance air supply pipeline, the original instrument air pressure limitation is overcome, enabling pneumatic wrenches to efficiently handle large-size bolts and shorten maintenance time. 2. Based on the maintenance frequency and equipment distribution of each floor of the slag and water frame and gasification frame, the number of quick connectors is configured differently to avoid resource redundancy or insufficiency and improve maintenance flexibility. 3. The output pressure is precisely controlled by a pressure regulating valve, combined with a small air buffer tank design, reducing the impact of pressure fluctuations on tool performance. 4. A venting pipeline is installed to purge air from the system after each use, avoiding impact on subsequent use. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the pipeline system in an embodiment of this utility model.

[0015] In the diagram: 1. Front switch valve; 2. Pressure regulating valve; 3. Rear switch valve; 4. Buffer tank inlet switch valve; 5. Buffer tank outlet switch valve; 6. Maintenance gas source switch valve; 7. Vent switch valve; 8. Quick connector. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0017] like Figure 1As shown, in this embodiment, a high-efficiency maintenance power air supply pipeline system for a gasification unit is provided, including an air buffer tank, a plate and frame, a slag and water frame, and a gasification frame; the air separation system is connected to the air buffer tank via a compressed air pipeline, and the air buffer tank is connected to the plate and frame via a pressing air supply pipeline; a pressure regulating valve 2 is provided on the compressed air pipeline, and a maintenance air supply pipeline is connected to the compressed air pipeline downstream of the pressure regulating valve 2; the maintenance air supply pipeline is connected to quick connectors 8 provided on the slag and water frame and the gasification frame to provide maintenance air supply for the slag and water frame and the gasification frame.

[0018] In this embodiment, the original power supply pipeline flow is as follows: 2.5MPa compressed air from the air separation unit is reduced to 0.9MPa through pressure regulating valve 2, buffered by the air buffer tank, and then supplied only to the plate and frame as the power source for the pressing process. Neither the gasification frame nor the slag-water frame has a power supply for pneumatic tools. When pneumatic tools are needed for the gasification frame and slag-water frame, only a 0.65MPa instrument air source can be used. The quantity and pressure of the on-site instrument air sources cannot meet the needs of maintenance and repair work.

[0019] After the maintenance air supply pipeline system is completed and put into operation: The maintenance air supply pipeline, located after pressure regulating valve 2, runs through floors 1 to 4 of the slag and water frame and floors 1 to 10 of the gasification frame. Compressed air from the air separation unit at 2.5 MPa is drawn from pressure regulating valve 2, reduced to 0.9 MPa, and delivered to quick-connect couplings 8 on each floor to meet the maintenance needs of each floor. The maintenance air supply pipeline uses high-quality carbon steel pipes and is equipped with supports and fall protection measures. Pressure monitoring instruments are installed at key points to monitor the air supply status in real time and ensure stable pressure throughout the line. Quick-connect couplings 8 are equipped with dust covers to prevent foreign objects from entering and affecting tool connections.

[0020] In this embodiment, the slag-water frame includes four floors, with two quick connectors 8 arranged horizontally at intervals on each floor. The gasification frame includes ten floors, with two quick connectors 8 arranged horizontally at intervals on each floor from the first to the eighth floor; three rows of quick connectors are arranged horizontally at intervals on the ninth floor, each row of quick connectors includes four groups of quick connectors arranged vertically at intervals, and each group of quick connectors includes two quick connectors 8 arranged horizontally at intervals; and three quick connectors 8 are arranged horizontally at intervals on the tenth floor.

[0021] In this embodiment, a front switch valve 1, a rear switch valve 3, and a buffer tank inlet switch valve 4 are sequentially and spaced apart on the compressed air pipeline, and the pressure regulating valve 2 is located between the front switch valve 1 and the rear switch valve 3. A buffer tank outlet switch valve 5 is provided on the pressing air source pipeline. A maintenance air source switch valve 6 is provided on the maintenance air source pipeline.

[0022] In this embodiment, a venting line is connected to the compressed air pipeline, and the connection point between the venting line and the compressed air pipeline is located between the rear switch valve 3 and the buffer tank inlet switch valve 4; a venting switch valve 7 is provided on the venting line.

[0023] When the maintenance air supply pipeline system provides maintenance air to the slag-water frame and / or gasification frame, the front switch valve 1, pressure regulating valve 2, and maintenance air supply switch valve 6 are opened, while the remaining valves are closed. Compressed air, after pressure regulation, smoothly enters the maintenance air supply pipeline to supply the quick connector 8 of the slag-water frame and / or gasification frame. After maintenance is completed, the vent switch valve 7, rear switch valve 3, and maintenance air supply switch valve 6 are opened, while the remaining valves are closed, thereby venting residual air from the compressed air pipeline and maintenance air supply pipeline to avoid affecting the next use. When air needs to be supplied to the plate and frame, the front switch valve 1, pressure regulating valve 2, rear switch valve 3, buffer tank inlet switch valve 4, and buffer tank outlet switch valve 5 are opened, while the remaining valves are closed. Compressed air supplied by the air separation unit is pressure regulated by pressure regulating valve 2, enters the air buffer tank for buffering, and is then supplied to the plate and frame. When the plate and frame gas supply is finished, the vent valve 7, the buffer tank inlet valve 4, and the buffer tank outlet valve 5 are opened, while the other valves are closed, thereby allowing the air in the tank and the pressing gas supply pipeline to be discharged to avoid affecting the next use.

[0024] In this embodiment, a quick connector 8 is installed at the connection between the maintenance gas source pipeline and the compressed air pipeline to facilitate the subsequent expansion of other gas-using equipment. A safety valve is installed on the air buffer tank to ensure its safety.

[0025] In this embodiment, a new maintenance air supply pipeline is added, equipped with a 0.9MPa compressed air power source, to construct a compressed air supply network independent of the instrument air supply. The high-pressure air source allows pneumatic wrenches to handle large-size bolts, and the estimated maintenance time per operation is reduced by 15%-30%, thus alleviating the shortage of maintenance manpower. It also reduces manual wrench operation, avoids repetitive high-intensity physical labor, and improves the working environment. Standardized quick-connect couplings reduce the risk of temporary pipework, and pressure monitoring and fall protection designs further ensure construction safety during use. Efficient disassembly and assembly reduce bolt damage, indirectly reducing equipment maintenance costs.

[0026] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0027] This invention provides a high-efficiency power air supply pipeline system for the maintenance of a gasification unit. By adding a maintenance air supply pipeline, it overcomes the original instrument air pressure limitations, enabling pneumatic wrenches to efficiently handle large-size bolts and shorten maintenance time. The number of quick-connect couplings is differentiated according to the maintenance frequency and equipment distribution of each floor of the slag and water frame and the gasification frame, avoiding resource redundancy or insufficiency and improving maintenance flexibility. The output pressure is precisely controlled by a pressure regulating valve, combined with a small air buffer tank design, reducing the impact of pressure fluctuations on tool performance. A venting pipeline is installed to purge air from the system after each use, preventing impact on subsequent use.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-efficiency maintenance power gas supply pipeline system for a gasification device, characterized in that: It includes an air buffer tank, a plate and frame structure, a slag and slurry frame structure, and a gasification frame structure. The air separation system is connected to the air buffer tank via a compressed air pipeline, and the air buffer tank is connected to the plate and frame structure via a pressurized air source pipeline. A pressure regulating valve is installed on the compressed air pipeline, and a maintenance air source pipeline is connected to the compressed air pipeline downstream of the pressure regulating valve. The maintenance air source pipeline is connected to quick connectors installed on the slag and slurry frame structure and the gasification frame structure to provide maintenance air source for the slag and slurry frame structure and the gasification frame structure.

2. The high-efficiency maintenance power gas supply pipeline system for the gasification device according to claim 1, characterized in that: The slag and water frame consists of four floors, with two quick connectors spaced horizontally on each floor.

3. The high-efficiency maintenance power gas supply pipeline system for the gasification device according to claim 2, characterized in that: The gasification frame comprises ten floors. Each floor from the first to the eighth floor has two quick connectors arranged horizontally at intervals. The ninth floor has three rows of quick connectors arranged horizontally at intervals. Each row of quick connectors includes four groups of quick connectors arranged vertically at intervals. Each group of quick connectors includes two quick connectors arranged horizontally at intervals. The tenth floor has three quick connectors arranged horizontally at intervals.

4. The high-efficiency maintenance power gas supply pipeline system for the gasification device according to claim 3, characterized in that: The quick connector is equipped with a dust cover.

5. The high-efficiency maintenance power gas supply pipeline system for the gasification device according to claim 3, characterized in that: The compressed air pipeline is provided with a front switch valve, a rear switch valve, and a buffer tank inlet switch valve in sequence at intervals, and the pressure regulating valve is located between the front switch valve and the rear switch valve.

6. The high-efficiency maintenance power gas supply pipeline system for the gasification unit according to claim 4, characterized in that: The press gas supply pipeline is equipped with a buffer tank outlet switch valve.

7. The high-efficiency maintenance power gas supply pipeline system for the gasification unit according to claim 5, characterized in that: The maintenance gas supply pipeline is equipped with a maintenance gas supply switch valve.

8. The high-efficiency maintenance power gas supply pipeline system for the gasification unit according to any one of claims 4 to 7, characterized in that: A vent line is connected to the compressed air pipeline, and the connection point between the vent line and the compressed air pipeline is located between the rear switch valve and the buffer tank inlet switch valve; a vent switch valve is installed on the vent line.

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