Fuel gas filtering separator with multi-core structure

Abstract

The utility model provides a fuel gas filter separator with a multi-core structure, which comprises a filter shell, a gas outlet end pipe, a positioning seat frame and a filter core cylinder, the filter core cylinder is filled with a folding filter screen, the folding filter screen is connected end to end along the circumferential direction of the filter core cylinder, and the folding filter screen filters fuel gas. The folding filter screen is formed by folding an integrated polyester filter material, the polyester filter material is formed by interweaving and stacking polyester fibers, folding lines of the folding filter screen are of an M-shaped structure, the fuel gas filter separator adopts a plurality of filter element cylinders with small diameters to replace a single filter element cylinder with a large diameter, the compression resistance is high, the service life of the filter screen is prolonged to 4 times, and the filter screen is not prone to falling off when encountering agglomerate ash. When the fuel gas filter separator is used, enough time is provided for alarming when the pressure difference rises, an operator can replace the filter element in time, the safety of a gate station is guaranteed, meanwhile, the folding filter screen is large in surface area for intercepting impurities and has the advantages of high pollutant holding capacity and high aperture ratio, and therefore the fuel gas filter separator is high in filter efficiency, slow in pressure drop rising and long in service life.

Description

Technical Field

[0001] This utility model relates to filtration equipment, and more particularly to a gas filter separator with a multi-core structure. Background Technology

[0002] Natural gas extracted from geological formations often contains sand and other solid impurities (such as rust), as well as harmful substances such as water, water vapor, sulfides, and carbon dioxide. Sand and iron particles move with the gas flow through pipelines, wearing down compressor, pipe, and instrument components, causing damage and destruction. Sometimes, they can accumulate in certain areas, affecting normal gas transmission. Water, if it accumulates in low-lying areas of the pipeline, reduces the pipeline's cross-sectional area, increases transmission resistance, and forms a water film on the inner wall. This film, when exposed to acidic gases (H2S, CO2, etc.), forms an acidic aqueous solution, corroding the pipe and causing damage. Under certain temperature and pressure conditions, water can also react with some components of natural gas to form ice-like hydrates, causing pipeline blockage. Therefore, filters need to be installed in gas transmission equipment for filtration.

[0003] Commonly used gas filters employ a single-element filter structure with a relatively large diameter, resulting in insufficient pressure resistance. When maintenance of upstream pipelines or equipment causes a large amount of deposited impurities to detach from the pipe walls, leading to a sudden surge in impurities, the filter element's dirt-holding capacity is insufficient. The differential pressure rises rapidly, and the differential pressure alarm cannot provide enough time for manual intervention, causing the filter element to quickly become clogged and fail, thus affecting the normal operation of the gas transmission equipment. Therefore, it is necessary to optimize its structure to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a gas filter separator with a multi-core structure to improve filtration efficiency and extend service life.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A gas filter separator with a multi-core structure includes:

[0007] The filter housing has an inlet pipe at its inlet end, which is connected to a gas pipeline, allowing gas in the gas pipeline to enter the filter housing through the inlet pipe.

[0008] The gas outlet pipe has its inner end extending into the filter housing from the outlet end of the filter housing, and its outer end extending out of the filter housing and connected to the gas pipeline. The gas inside the filter housing can be discharged through the gas outlet pipe.

[0009] It also includes:

[0010] The positioning bracket consists of several parts, each of which is installed inside the air outlet pipe and connected to the air outlet pipe. It has a load-bearing space inside.

[0011] The filter cartridge consists of several parts, each of which is installed in a positioning bracket. Its bottom is connected to the gas outlet pipe through the positioning bracket. The positioning bracket supports the filter cartridge, allowing the gas inside the filter housing to pass through the side of the filter cartridge and enter the gas outlet pipe for discharge. The filter cartridge then filters the gas.

[0012] In one embodiment of this utility model, a cover plate is provided above the positioning frame. The cover plate has several parts, and each cover plate covers the top of the filter core cylinder. It is connected to the positioning frame through a detachable locking rod. The cover plate seals the top of the filter core cylinder and positions the filter core cylinder.

[0013] In one embodiment of this utility model, the filter core is filled with a folded filter screen, which is joined end to end along the circumference of the filter core to filter the gas.

[0014] In one embodiment of this utility model, the folded filter screen is formed by folding an integral polyester filter material. The polyester filter material is formed by interlacing and stacking polyester fibers, and has an ultra-large filtration area, which is more than 4 times the filtration area of ​​a woven mesh.

[0015] In one embodiment of this utility model, the pleats of the folded filter screen are M-shaped, which has a large surface area for trapping impurities.

[0016] In one embodiment of this utility model, the folded filter screen is folded on its outer wall to form shallow and deep concave grooves extending axially, and on its inner wall at corresponding positions to form low and high convex grooves extending axially. The radial depth of the shallow concave grooves is less than the radial depth of the deep concave grooves, and the shallow and deep concave grooves are arranged at intervals along the circumference of the folded filter screen. The radial height of the low convex grooves is less than the radial height of the high convex grooves, and the low and high convex grooves are arranged at intervals along the circumference of the folded filter screen. Since the folded filter screen has a cylindrical structure, its outer wall has a larger circumference, providing more space for filter media, while its inner wall has a smaller circumference, providing less space for filter media. By setting the shallow and low convex groove structure, the amount of filter media that can be accommodated on the outer wall can be increased, while the amount of filter media that can be accommodated on the inner wall can be reduced, thus increasing the overall surface area for intercepting impurities.

[0017] In one embodiment of this utility model, the filter housing is provided with an opening and closing side door, which corresponds to the position of the filter core tube, and the filter core tube can be disassembled and assembled through the opening and closing side door.

[0018] In one embodiment of this utility model, a waste discharge side pipe is provided in the filter housing. The inner end of the waste discharge side pipe is located below the filter core cylinder, and its outer end extends outward from the filter housing. The waste material formed after the filter core cylinder filters the gas can be discharged from the waste discharge side pipe.

[0019] The advantages of this utility model are:

[0020] 1. This gas filter separator uses multiple smaller diameter filter cartridges to replace a single larger diameter filter cartridge, which has greater pressure resistance and extends the filter life by 4 times. When encountering ash and the pressure difference rises, there is enough time for an alarm to sound, allowing operators to replace the filter cartridge in time and ensuring gas transmission safety.

[0021] 2. This gas filter separator uses multiple smaller diameter filter cartridges to replace a single larger diameter filter cartridge. The weight of a single filter cartridge is small, making it easy to replace and maintain.

[0022] 3. The pleated filter screen in the filter core of the gas filter separator has an M-shaped pleated structure. The outer wall is folded to form shallow and deep concave grooves extending axially, and the corresponding position on the inner wall is folded to form low and high convex grooves extending axially, so that the surface area for intercepting impurities is large.

[0023] 4. The pleated filter screen is made of one-piece polyester filter material, which is formed by interlacing and stacking polyester fibers. It has the advantages of high dirt holding capacity and high porosity, which makes the gas filter separator have high filtration efficiency, slow pressure drop rise and long service life. Attached Figure Description

[0024] Figure 1 This is a cross-sectional structural diagram of the gas filter separator with a multi-core structure proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the filter cartridge structure;

[0026] Figure 3 This is a schematic diagram of the filter cartridge arrangement;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the filter cartridge. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] like Figures 1-4 As shown, the gas filter separator with a multi-core structure proposed in this utility model includes a filter housing 100, an outlet pipe 200, a positioning bracket 300, and a filter core 400. The inlet end of the filter housing is provided with an inlet pipe 110, which is connected to a gas pipeline. Gas in the gas pipeline can enter the filter housing through the inlet pipe. The inner end of the outlet pipe extends into the interior of the filter housing from the outlet end, and its outer end extends outward from the filter housing and is connected to the gas pipeline. Gas in the filter housing can be discharged through the outlet pipe. The positioning bracket is provided with several components, each of which is installed in the inner end of the outlet pipe and is connected to the outlet pipe. It has a bearing space inside. The filter core is provided with several components, each of which is installed in the positioning bracket. Its bottom is connected to the outlet pipe through the positioning bracket. The positioning bracket supports the filter core, allowing gas in the filter housing to pass through the side of the filter core and enter the outlet pipe for discharge. The filter core filters the gas.

[0030] In this embodiment, a cover plate 500 is provided above the positioning frame. The cover plate has several parts, and each cover plate covers the top of the filter core cylinder. It is connected to the positioning frame through a detachable locking rod 510. The cover plate seals the top of the filter core cylinder and positions the filter core cylinder.

[0031] In this embodiment, the filter core is filled with a pleated filter screen 410, which is joined end to end along the circumference of the filter core to filter the gas.

[0032] In this embodiment, the pleated filter screen is formed by folding an integral polyester filter material. This polyester filter material is formed by interlacing and stacking polyester fibers, resulting in an ultra-large filtration area, more than four times that of a woven mesh filter. Simultaneously, this integral polyester filter material has high strength and does not require auxiliary support mesh, thus providing a larger filtration area compared to filter screens with support mesh.

[0033] In this embodiment, the pleats of the folded filter screen have an M-shaped structure, which provides a larger surface area for trapping impurities.

[0034] In this embodiment, the folded filter screen is folded on its outer wall to form shallow concave patterns 411 and deep concave patterns 422 extending axially, and on its inner wall at corresponding positions to form low-position convex patterns 413 and high-position convex patterns 414 extending axially. The radial depth of the shallow concave patterns is less than the radial depth of the deep concave patterns, and the shallow and deep concave patterns are arranged at intervals along the circumference of the folded filter screen. The radial height of the low-position convex patterns is less than the radial height of the high-position convex patterns, and the low and high-position convex patterns are arranged at intervals along the circumference of the folded filter screen. Because the pleated filter screen has a cylindrical structure, its outer wall has a larger circumference, providing more space for filter media, while its inner wall has a smaller circumference, resulting in less space for filter media. If all the filter media are arranged with deep concave and high convex structures, the gaps between the filter media on the inner wall will be too tight, while the gaps between the filter media on the outer wall will be too loose. By setting shallow concave and low convex structures, the amount of filter media that can be accommodated on the outer wall can be increased, while the amount of filter media that can be accommodated on the inner wall can be reduced, thus increasing the overall surface area for trapping impurities.

[0035] In this embodiment, the filter housing is provided with an opening and closing side door 120, which corresponds to the position of the filter core tube, and the filter core tube can be disassembled and assembled through the opening and closing side door.

[0036] In this embodiment, the filter housing is provided with a waste discharge side pipe 130. The inner end of the waste discharge side pipe is located below the filter core cylinder, and its outer end extends outward from the filter housing. The waste material formed after the filter core cylinder filters the gas can be discharged from the waste discharge side pipe.

[0037] During use, the positioning bracket carrying the filter cartridge can be installed on the adapter carrier, and then the adapter carrier can be installed in the conventional gas filter separator through the connector. Multiple filter cartridges with smaller diameters can replace the single filter cartridge with a larger diameter in the conventional gas filter separator, which is convenient for modification on existing equipment.

[0038] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A gas filter separator with a multi-core structure, comprising: The filter housing has an inlet pipe at its inlet end, which is connected to a gas pipeline, allowing gas in the gas pipeline to enter the filter housing through the inlet pipe. The gas outlet pipe has its inner end extending into the filter housing from the outlet end of the filter housing, and its outer end extending out of the filter housing and connected to the gas pipeline. The gas inside the filter housing can be discharged through the gas outlet pipe. Its characteristic is that it further includes: The positioning bracket consists of several parts, each of which is installed inside the air outlet pipe and connected to the air outlet pipe. It has a load-bearing space inside. The filter cartridge consists of several parts, each of which is installed in a positioning bracket. Its bottom is connected to the gas outlet pipe through the positioning bracket. The positioning bracket supports the filter cartridge, allowing the gas inside the filter housing to pass through the side of the filter cartridge and enter the gas outlet pipe for discharge. The filter cartridge then filters the gas.

2. A gas filter separator with a multi-core structure according to claim 1, characterized in that: A cover plate is provided above the positioning frame. The cover plate consists of several parts. Each cover plate covers the top of the filter element and is connected to the positioning frame through a detachable locking rod. The cover plate seals the top of the filter element and positions the filter element.

3. A gas filter separator with a multi-core structure according to claim 1, characterized in that: The filter cartridge is filled with a pleated filter screen, which is joined end to end along the circumference of the filter cartridge. The pleated filter screen filters the gas.

4. A gas filter separator with a multi-core structure according to claim 3, characterized in that: The pleated filter screen is made of one-piece polyester filter media folded into shape, which is formed by interlacing and stacking polyester fibers.

5. A gas filter separator with a multi-core structure according to claim 3, characterized in that: The pleats of the folded filter screen have an M-shaped structure.

6. A gas filter separator with a multi-core structure according to claim 1, characterized in that: The folded filter screen is folded on its outer wall to form shallow and deep concave grooves extending axially, and on its inner wall at corresponding positions to form low and high convex grooves extending axially. The radial depth of the shallow concave grooves is less than the radial depth of the deep concave grooves, and the shallow and deep concave grooves are arranged at intervals along the circumference of the folded filter screen. The radial height of the low convex grooves is less than the radial height of the high convex grooves, and the low and high convex grooves are arranged at intervals along the circumference of the folded filter screen.

7. A gas filter separator with a multi-core structure according to claim 1, characterized in that: The filter housing is equipped with an opening and closing side door, which corresponds to the position of the filter cartridge, allowing for the disassembly and assembly of the filter cartridge through the opening and closing side door.

8. A gas filter separator with a multi-core structure according to claim 1, characterized in that: The filter housing is equipped with a waste discharge side pipe. The inner end of the waste discharge side pipe is located below the filter core, and its outer end extends outward from the filter housing. The waste material formed after the filter core filters the gas can be discharged from the waste discharge side pipe.

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