Skid-mounted instrument air supply integrated device

Abstract

The utility model discloses a skid-mounted instrument air supply integrated device. The skid-mounted instrument air supply integrated device comprises a skid-mounted body, an air compressor unit, a non-purification buffer tank unit, a dryer unit, a first-stage filter unit, a second-stage filter unit, a third-stage filter unit, a control system unit and a power distribution unit, the air compressor unit, the first-stage filter unit, the non-purification buffer tank unit, the second-stage filter unit, the dryer unit and the third-stage filter unit are sequentially connected through pipelines; the air compressor unit, the first-stage filter unit, the non-purification buffer tank unit, the second-stage filter unit, the dryer unit and the third-stage filter unit are all electrically connected with the control system unit and the power distribution unit, and the power distribution unit is electrically connected with the control system unit. The integrated device has the advantages of concentrated functions, compact structure, strong completeness and reusability, and is provided with a standard communication interface so as to realize centralized monitoring.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply for oil and gas field instruments, in particular to a skid-mounted integrated air supply device for instruments. Background Art

[0002] The process flow for well stations in surface engineering construction in oil and gas fields utilizes an integrated, skid-mounted, and modular design, resulting in skid-mounted process equipment. However, the instrument air supply system supporting these processes suffers from fragmented on-site equipment installation, requiring a relatively large footprint. The installation foundations for the air compressor units, non-purified buffer tank units, dryer units, control system units, and power distribution units require extensive civil engineering and installation work, resulting in a long construction period. The level of integration is low, the degree of factory prefabrication is low, the overall investment is high, and the entire system is immobile. An integrated technology tailored to the specific characteristics of oil and gas field production has yet to be developed, nor is it suitable for the rapid construction and commissioning of surface engineering projects, equipment reuse, relocation, and lean production requirements of oil and gas field operations. Utility Model Content

[0003] The purpose of the utility model is to provide a skid-mounted instrument air supply integrated device, thereby solving the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A skid-mounted instrument air supply integrated device, comprising a skid-mounted body and an air compressor unit, a non-purification buffer tank unit, a dryer unit, a primary filter unit, a secondary filter unit, a tertiary filter unit, a control system unit, and a power distribution unit, which are uniformly installed on the skid-mounted body in preset positions.

[0006] The air compressor unit, the primary filter unit, the non-purification buffer tank unit, the secondary filter unit, the dryer unit and the tertiary filter unit are connected in sequence through pipelines; the air compressor unit, the primary filter unit, the non-purification buffer tank unit, the secondary filter unit, the dryer unit and the tertiary filter unit are all electrically connected to the control system unit and the power distribution unit, and the power distribution unit is electrically connected to the control system unit.

[0007] Preferably, the air compressor unit includes a box body and an air filter, an oil filter, an oil separator, a coupling, a main motor, an air compressor body, a cooler, a cooling fan, a main controller, a frequency converter, a pressure and temperature sensor, and a safety valve uniformly installed in the box body according to preset positions;

[0008] The main motor is connected to the air compressor body through the coupling, the air filter, the oil filter, the oil separator, the air compressor body and the cooler are connected in sequence through pipelines, the pressure and temperature sensor and the safety valve are connected to the pipeline through a threaded interface, the cooling fan, the frequency converter and the pressure and temperature sensor are electrically connected to the main controller, and the main controller is electrically connected to the control system unit.

[0009] Preferably, the non-purification buffer tank unit includes a tank body, a safety vent valve, a pressure gauge and an automatic drain valve;

[0010] The safety drain valve and the pressure gauge are connected to the tank body through a threaded interface, the automatic drain valve is connected to the tank body through a pipeline, and the automatic drain valve is electrically connected to the control system unit.

[0011] Preferably, the dryer unit includes a base and an adsorption tower A, an adsorption tower B, a desiccant, a pressure gauge, an automatic control valve, a muffler and a controller uniformly installed on the base according to preset positions;

[0012] The adsorption tower A, the adsorption tower B, the automatic control valve and the muffler are connected in sequence through pipelines; the pressure gauge is connected to the adsorption tower through a threaded interface; the automatic control valve is electrically connected to the controller, and the controller is electrically connected to the control system unit.

[0013] Preferably, the control system unit includes an RTU system, provides a standard RS485 communication interface, and supports a standard Modbus RTU protocol.

[0014] Preferably, the power distribution unit includes cable inlet and outlet ends and various isolating switches.

[0015] The beneficial effects of the present utility model are as follows: 1. The integrated device features centralized functions, a compact structure, strong completeness, and reusability, and it has a standard communication interface that enables centralized monitoring. 2. The integrated device reduces land acquisition requirements, occupying approximately 50% less floor space than the building structure of a conventional distributed instrument air system. 3. The integrated device is pre-assembled, with connections and commissioning between equipment units and installation of corresponding control and communication modules completed before shipment. On-site installation requires only a silt or gravel cushion, reducing the workload of supporting construction projects, shortening the construction period, and lowering overall investment by 30%. 4. The integrated device adapts to the development trend of oil and gas field instrument air systems toward standardized design, modular construction, and digital management, meeting the needs of oil and gas fields for large-scale production, rapid production ramp-up, and improved labor productivity. 5. The integrated device is skid-mounted, enhancing equipment reusability. Using integrated intelligent integration technology, the "air compressor unit, non-purification buffer tank unit, dryer unit, filter unit, control system unit, and power distribution unit" are integrated on a single skid, forming an integrated instrument air supply. 6. The integrated device skid is manufactured, processed, and debugged in the factory before being shipped as a complete set. It is then transported to the oil and gas field site. The system is then put into operation by connecting the associated equipment one by one through the reserved process pipeline external interfaces and cable inlet and outlet interfaces. Installation is convenient and simple, with minimal on-site installation work, shortening the commissioning period. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the integrated device in the embodiment of the present utility model.

[0017] In the figure: 1. Air compressor unit; 2. Primary filter unit; 3. Non-purification buffer tank unit; 4. Secondary filter unit; 5. Dryer unit; 6. Tertiary filter unit; 7. Control system unit; 8. Power distribution unit; 9. Skid-mounted unit. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] like Figure 1As shown, in this embodiment, in order to overcome the defects of the original instrument air supply system at the oil and gas field station, such as large area occupation, large amount of supporting engineering such as civil engineering and installation construction, long construction period, high comprehensive investment, and the system as a whole cannot be moved, a skid-mounted instrument air supply integrated device is provided, including a skid-mounted body 9 and an air compressor unit 1, a non-purification buffer tank unit 3, a dryer unit 5, a first-stage filter unit 2, a second-stage filter unit 4, a third-stage filter unit 6, a control system unit 7 and a power distribution unit 8 uniformly installed on the skid-mounted body 9 according to preset positions; each unit is integrated into an integral skid block through pipelines and cables to realize process and electrical connections.

[0020] The air compressor unit 1, the primary filter unit 2, the non-purification buffer tank unit 3, the secondary filter unit 4, the dryer unit 5 and the tertiary filter unit 6 are connected in sequence through pipelines; the air compressor unit 1, the primary filter unit 2, the non-purification buffer tank unit 3, the secondary filter unit 4, the dryer unit 5 and the tertiary filter unit 6 are all electrically connected to the control system unit 7 and the power distribution unit 8, and the power distribution unit 8 is electrically connected to the control system unit 7.

[0021] In this embodiment, the air compressor unit 1 is used to compress air at standard atmospheric pressure into compressed air at a certain pressure. The air compressor unit 1 includes a housing and an air filter, an oil filter, an oil separator, a coupling, a main motor, an air compressor body, a cooler, a cooling fan, a main controller, a frequency converter, pressure and temperature sensors, and a safety valve, all installed in the housing according to preset positions.

[0022] The main motor is connected to the air compressor body through the coupling, the air filter, the oil filter, the oil separator, the air compressor body and the cooler are connected in sequence through pipelines, the pressure and temperature sensor and the safety valve are connected to the pipeline through a threaded interface, the cooling fan, the frequency converter and the pressure and temperature sensor are electrically connected to the main controller, and the main controller is electrically connected to the control system unit 7.

[0023] In this embodiment, the non-purification buffer tank is used to buffer and stabilize the compressed air generated by the air compressor unit 1 before outputting it to the dryer unit 5. The non-purification buffer tank unit 3 includes a tank body, a safety vent valve, a pressure gauge, and an automatic drain valve. The safety vent valve and the pressure gauge are connected to the tank body via threaded connections, and the automatic drain valve is connected to the tank body via a pipeline. The automatic drain valve is electrically connected to the control system unit 7.

[0024] In this embodiment, the dryer unit 5 includes a base and an adsorption tower A, an adsorption tower B, a desiccant, a pressure gauge, an automatic control valve, a muffler and a controller uniformly installed on the base according to preset positions;

[0025] The adsorption tower A, the adsorption tower B, the automatic control valve and the muffler are connected in sequence through pipelines; the pressure gauge is connected to the adsorption tower through a threaded interface; the automatic control valve is electrically connected to the controller, and the controller is electrically connected to the control system unit 7.

[0026] The compressed air output by the non-purified buffer tank unit 3 is controlled by the controller to alternately adsorb and regenerate in two adsorption towers. After the compressed air enters the adsorption tower, moisture is adsorbed by the desiccant and dried, providing dry compressed air.

[0027] In this embodiment, the control system unit 7 comprises an RTU system, providing a standard RS485 communication interface and supporting the standard Modbus RTU protocol. The control system unit 7 can collect operating data from the air compressor unit 1, dryer unit 5, and on-site instruments within the skid. It controls the operation of the instrument air system according to station instructions or set parameters. It can also upload the overall real-time operating parameters of the instrument air supply system, enabling remote centralized monitoring of the instrument air supply system. The control system unit 7 can collect operating data from each unit in real time.

[0028] In this embodiment, the power distribution unit 8 includes cable inlet and outlet terminals, various isolating switches, and the isolating switches protect the electrical connections of each circuit. The power distribution unit 8 is used to provide power to each unit.

[0029] In this embodiment, the size of the skid-mounted body 9 can vary according to the different gas consumption on site. The length, width and height are controlled so as not to be excessively long, wide or high during road transportation, which is convenient for transportation. All units are placed on the skid-mounted body 9.

[0030] By adopting the above technical solution disclosed in the utility model, the following beneficial effects are obtained:

[0031] The utility model provides a skid-mounted integrated instrument air supply device with centralized functions, compact structure, strong completeness, and reusability. It has a standard communication interface that can realize centralized monitoring. The integrated device reduces the land acquisition area. The floor area of ​​the device is about 50% less than the building structure area of ​​a conventional distributed instrument air system. The integrated device is pre-assembled, and the connection and debugging between equipment units and the installation of corresponding control and communication modules are completed before leaving the factory. The on-site installation site only needs to use ash soil or gravel cushioning, which reduces the workload of building supporting projects, shortens the construction period, and reduces the overall investment by 30%. The integrated device adapts to the development direction of oil and gas field instrument air systems towards standardized design, modular construction, and digital management, and meets the needs of oil and gas fields for large-scale production, rapid production, and improved labor productivity. The integrated device is skid-mounted to improve the reusability of the equipment. Using integrated intelligent integration technology, the "air compressor unit, non-purification buffer tank unit, dryer unit, filter unit, control system unit, distribution unit" and other units are integrated on a skid to form an integrated instrument air supply. The integrated device skid is manufactured, processed, and debugged in the factory before being shipped as a complete set. It is then transported to the oil and gas field site. The system is then put into operation by connecting the associated equipment one by one through the reserved process pipeline external ports and cable inlet and outlet ports. Installation is convenient and simple, with minimal on-site installation work, shortening the commissioning period.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A skid-mounted integrated instrument air supply device, characterized by: It includes a skid-mounted body and an air compressor unit, a non-purification buffer tank unit, a dryer unit, a primary filter unit, a secondary filter unit, a tertiary filter unit, a control system unit and a power distribution unit which are uniformly installed on the skid-mounted body in preset positions; The air compressor unit, the primary filter unit, the non-purification buffer tank unit, the secondary filter unit, the dryer unit and the tertiary filter unit are connected in sequence through pipelines; the air compressor unit, the primary filter unit, the non-purification buffer tank unit, the secondary filter unit, the dryer unit and the tertiary filter unit are all electrically connected to the control system unit and the power distribution unit, and the power distribution unit is electrically connected to the control system unit.

2. The skid-mounted instrument air supply integrated device according to claim 1, characterized in that: The air compressor unit includes a box body and an air filter, an oil filter, an oil separator, a coupling, a main motor, an air compressor body, a cooler, a cooling fan, a main controller, a frequency converter, a pressure and temperature sensor and a safety valve uniformly installed in the box body according to preset positions; The main motor is connected to the air compressor body through the coupling, the air filter, the oil filter, the oil separator, the air compressor body and the cooler are connected in sequence through pipelines, the pressure and temperature sensor and the safety valve are connected to the pipeline through a threaded interface, the cooling fan, the frequency converter and the pressure and temperature sensor are electrically connected to the main controller, and the main controller is electrically connected to the control system unit.

3. The skid-mounted instrument air supply integrated device according to claim 1, characterized in that: The non-purification buffer tank unit includes a tank body, a safety vent valve, a pressure gauge and an automatic drain valve; The safety drain valve and the pressure gauge are connected to the tank body through a threaded interface, the automatic drain valve is connected to the tank body through a pipeline, and the automatic drain valve is electrically connected to the control system unit.

4. The skid-mounted instrument air supply integrated device according to claim 1, characterized in that: The dryer unit includes a base and an adsorption tower A, an adsorption tower B, a desiccant, a pressure gauge, an automatic control valve, a muffler and a controller uniformly installed on the base according to preset positions; The adsorption tower A, the adsorption tower B, the automatic control valve and the muffler are connected in sequence through pipelines; the pressure gauge is connected to the adsorption tower through a threaded interface; the automatic control valve is electrically connected to the controller, and the controller is electrically connected to the control system unit.

5. The skid-mounted instrument air supply integrated device according to claim 1, characterized in that: The control system unit includes an RTU system, provides a standard RS485 communication interface, and supports the standard Modbus RTU protocol.

6. The skid-mounted instrument air supply integrated device according to claim 1, characterized in that: The power distribution unit includes cable inlet and outlet ends and various isolation switches.

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