Filtering device suitable for exhaust gas of offshore oilfield

Abstract

The utility model discloses a filtering device suitable for offshore oilfield exhaust gas, which comprises a device body, a top plate type gas filtering plate is arranged at the upper part in the device body, and a drawer type water filtering container is arranged at the lower part in the device body; a gas inlet pipeline is connected to the device body between the top plate type gas filter plate and the drawer type water filter container; a plurality of top exhaust holes are formed in the side wall of the top of the device body, and a bottom drainage pipeline is arranged at the bottom of the device body. The device effectively solves the problem of air pollution caused by local emission after air washing of the offshore oilfield sewage system filter, ensures the environmental safety in the production process of an offshore oilfield, has a good use effect, and has important effects and meanings on safe production of the oilfield.

Description

TECHNICAL FIELD

[0001] The utility model relates to offshore fixed oil production platform waste gas emission filter field, especially in kind is suitable for offshore oil field emission gas's filter device. BACKGROUND

[0002] Offshore oil production platform is offshore oil exploitation processing platform, and part of harmful waste gas is produced in the production process, and it is important to discharge after treatment. As the double medium filter is the main sewage treatment equipment of the oil production platform, a large amount of harmful waste gas is produced in the air washing process, and most offshore platforms are designed to discharge directly locally. A large amount of smoke is generated during discharge, and there is an odor. In order to ensure the safety of the environment and the personnel of the oil production platform, a waste gas emission filter device with remarkable effect needs to be developed. UTILITY MODEL CONTENT

[0003] The utility model discloses in order to solve above-mentioned technical problem, provide a kind of filter device suitable for offshore oil field emission gas. The device can realize the filtration of oil field filter equipment emission gas, effectively solve the problem that local emission gas discharges smoke, pollutes air.

[0004] The utility model discloses the following technical scheme is adopted to be realized.

[0005] A kind of filter device suitable for offshore oil field emission gas, including device body, top plate type gas filter plate is equipped in the upper portion in the device body, drawer type filter water container is equipped in the lower portion in the device body;Gas inlet pipeline is connected on the device body between top plate type gas filter plate and drawer type filter water container;Several top exhaust holes are formed on the top side wall of the device body, the bottom of device body is equipped with bottom liquid discharge pipeline.

[0006] Further, liquid amount control valve is equipped on the bottom liquid discharge pipeline.

[0007] Further, the top surface of the device body is connected with top large lid.

[0008] Further, one side of the top large lid is connected with the device body by hinge, and the other side is equipped with lock hole corresponding to the lock hole of the device body.

[0009] Further, the top plate type gas filter plate includes frame, filter layer is equipped in the frame, and filter layer adopts metal net fixed.

[0010] Further, the drawer type filter water container includes filter water drawer, and filter water grid plate is movably arranged in the filter water drawer.

[0011] Further, splash-proof baffle is equipped around the top exhaust hole.

[0012] The present application has the following advantages.

[0013] The utility model discloses based on the original discharge gas export pipeline of offshore oil production platform provides a set of filter device suitable for offshore platform waste gas discharge, effectively solve the local discharge pollution air problem after offshore oilfield sewage system filter gas washing, guarantee the environmental safety in the production process of offshore oilfield, and use effect is good, and it has important role and significance to oilfield safety production. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is the side view of the utility model;

[0017] Figure 4 It is the top view of the utility model;

[0018] Figure 5 It is the structure schematic diagram of drawer type filter water container of the utility model;

[0019] Figure 6 It is the structure schematic diagram of filter water drawer of the utility model;

[0020] Figure 7 It is the structure schematic diagram of filter water grid plate of the utility model;

[0021] Figure 8 It is the structure schematic diagram of top board type gas filter plate of the utility model.

[0022] Wherein, 1. air inlet pipeline;2. top board type gas filter plate;21. frame;22. filter layer;23. metal net;3. top exhaust hole;4. top big lid;5. drawer type filter water container;51. filter water drawer;52. filter water grid plate;6. bottom liquid discharge pipeline;7. liquid amount control valve;8. splash baffle. DETAILED DESCRIPTION

[0023] The following further describes the patent application in combination with embodiments.

[0024] As Figures 1-8 Shown, a kind of filter device suitable for offshore oilfield discharge gas, including device ontology, air inlet pipeline 1, top board type gas filter plate 2, top exhaust hole 3, top big lid 4, drawer type filter water container 5, bottom liquid discharge pipeline 6, liquid amount control valve 7, splash baffle 8.

[0025] The overall appearance design of the filtering device is 800mm in length, 600mm in width and 1000mm in height. According to the standard GB150-1998 of the steel pressure vessel, the material is selected as 316 stainless steel with a thickness of 0.3mm. The product size can be designed according to the actual demand.

[0026] A limiting plate is arranged in the upper part of the device body, and the top plate type gas filter plate 2 is placed on the limiting plate. Specifically, the top plate type gas filter plate 2 is arranged in one, including a frame 21, a filter layer 22 arranged in the frame 21, and the filter layer 22 is fixed by a metal mesh 23. The frame 21 is made of 316 stainless steel, and the filter layer 22 is made of primary efficiency non-woven fabric. The primary efficiency non-woven fabric is laid in the frame 21, and the filter material is fixed by the metal mesh 23 on both sides. The top plate type gas filter plate 2 is used to capture particles, dust and various suspended matters above 1um. According to HG / T21618-1998, the height of the top plate type gas filter plate 2 is divided into two specifications of 100mm and 150mm, and is divided into upper-mounted type and lower-mounted type. Here, 150mm height is selected according to general conditions, and the device body is installed at the upper part of the device body for convenient installation and maintenance.

[0027] A drawer type water filter container 5 is arranged in the lower part of the device body, and the drawer type water filter container 5 can be completely drawn out. Specifically, the drawer type water filter container 5 is composed of a water filter drawer 51 and a detachable water filter grid plate 52, and the water filter grid plate 52 is placed in the water filter drawer 51. The material of the water filter drawer 51 is consistent with that of the device body, and the bottom surface of the water filter drawer 51 forms a plurality of water leakage holes. The filter screen aperture of the water filter grid plate 52 is 2.5mm to ensure the effect of filtering out particulate matter, and the material is 316 stainless steel.

[0028] The inlet pipeline 1 is connected to the upper part of the device body between the top plate type gas filter plate 2 and the drawer type water filter container 5. The inlet pipeline 1 uses a 4" pipeline according to the API series standard, and a 4" SCH80A105 seamless steel pipe is selected according to the enterprise standard Q / HS3006-2003 of China Offshore Oil General Company. An interface flange is arranged at the free end of the inlet pipeline 1, and the interface flange is selected as 4"150LB, SW, A105.

[0029] A plurality of top exhaust holes 3 are formed on the four sidewalls of the top of the device body. Specifically, considering the flow rate, 40 exhaust holes are arranged in front and back, and 30 exhaust holes are arranged on the left and right, and the area of a single hole is 50.24mm 2 . Preferably, a splash-proof baffle 8 is designed around the top exhaust hole 3.

[0030] A top large cover 4 is connected to the top surface of the device body, the material of the top large cover 4 is selected from 316 stainless steel, the thickness is 0.5 mm, one end of the top large cover 4 is connected to the device body through two hinges, and the other end is designed with a lock hole which is in correspondence with the lock hole of the device body, so that the top of the filter device can be locked, and the top plate type gas filter plate 2 can be placed after the large cover is opened.

[0031] A bottom liquid discharge pipeline 6 is arranged at the bottom of the device body, the bottom liquid discharge pipeline 6 is selected from a 1" SCH80A105 seamless steel pipe, and a liquid amount control valve 7 is arranged on the bottom liquid discharge pipeline 6, the liquid amount control valve 7 is selected from a 1-inch ball valve or a stop valve.

[0032] The filter exhaust pipeline outlet is connected to the device through a flange, the filter exhaust gas enters the device through the gas inlet pipeline 1, the gas moves upward and passes through the top plate type gas filter plate 2 to separate water in the gas, and at the same time, impurities and odors in the gas are removed, the water moves downward and passes through the drawer type water filter container 5 to be filtered, and the clean water after filtration is discharged through the bottom liquid discharge pipeline 6. The device can effectively solve the problem that air is polluted after the filter of the offshore oilfield sewage system is gas washed, and the environmental safety in the offshore oilfield production process is ensured, the use effect is good, and the device plays an important role and significance in the safe production of the oilfield.

[0033] The embodiments of the specific implementation are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A filter device suitable for use in filtering offshore oilfield discharge gas, comprising a device body, characterised in that: The upper part of the device body is provided with a top plate type gas filter plate (2), and the lower part of the device body is provided with a drawer type water filter container (5); an air inlet pipeline (1) is connected to the device body between the top plate type gas filter plate (2) and the drawer type water filter container (5); a plurality of top exhaust holes (3) are formed in the top side wall of the device body, and the bottom of the device body is provided with a bottom liquid discharge pipeline (6).

2. A filter device suitable for use in filtering offshore oilfield discharge gas according to claim 1, characterised in that: The bottom liquid discharge pipeline (6) is provided with a liquid amount control valve (7).

3. A filter device suitable for use in filtering offshore oilfield discharge gas according to claim 1, characterised in that: The top surface of the device body is connected with a top large cover (4).

4. A filter device suitable for use in filtering offshore oilfield discharge gas according to claim 3, characterised in that: One side of the top large cover (4) is connected with the device body through a hinge, and the other side is provided with a lock hole corresponding to the lock hole of the device body.

5. A filter device suitable for use in filtering offshore oilfield discharge gas according to claim 1, characterised in that: The top plate type gas filter plate (2) comprises a frame (21), and a filter layer (22) is arranged in the frame (21), and the filter layer (22) is fixed by a metal mesh (23).

6. A filter device suitable for use in filtering offshore oilfield discharge gas according to claim 1, characterised in that: The drawer type water filter container (5) comprises a water filter drawer (51), and a water filter grid plate (52) is movably arranged in the water filter drawer (51).

7. A filter device suitable for use in filtering offshore oilfield discharge gas according to claim 1, characterised in that: A splash-proof baffle (8) is arranged around the top exhaust hole (3).

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