Gas filter with quick-insertion type filter element

Abstract

The utility model discloses a fuel gas filter with a quick-insertion type filter element, which belongs to the technical field of fuel gas filtration, and comprises a filter cartridge component and a mounting component, the filter cartridge component comprises a straight barrel, a filter cavity is arranged in the straight barrel, a feeding barrel and a discharging barrel are respectively fixed at the top and the bottom of the straight barrel, and the mounting component is arranged in the straight barrel. When a new filter element assembly is installed in the feeding cylinder, the filter element assembly in the straight cylinder is in use, the filter element assembly in the discharging cylinder is eliminated, when the new filter element assembly needs to be replaced, the new filter element assembly can be pressed into the feeding cylinder through the installation assembly, and therefore the filter element assembly can be replaced conveniently. And at the moment, the filter element assembly in the feeding cylinder can move downwards to replace the filter element assembly in the straight cylinder, and the filter element assembly in the discharging cylinder can be extruded out, so that replacement can be completed, only the sealing cover needs to be tightened, operation can be completed without additional tools, and the replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas filtration technology, and more specifically, to a quick-connect filter cartridge gas filter. Background Technology

[0002] A gas filter is a device installed on a gas pipeline, mainly used to filter impurities in the gas (such as rust, particulate matter, oil, and moisture), ensuring that the gas entering the machine is clean. This protects key components such as gas valves and nozzles, extends equipment life, improves operational safety, prevents solid particles (such as rust and silt) in the pipeline from clogging gas valves or burner nozzles, reduces machine failure rate, and ensures combustion efficiency. It is an important protective component of the gas system.

[0003] Chinese Patent Announcement No. CN216367144U discloses a vertical gas filter. In this design, a guide post is bolted to the bottom outer wall of the outer casing. A worm gear is connected to the inner wall of one side of the guide sleeve via a bearing. The worm gear meshes with a worm wheel. One end of the worm gear extends to the outside of the guide sleeve and is welded with a handwheel. The worm gear, worm wheel, and screw allow the handwheel to rotate, which in turn drives the worm wheel and screw to rotate, thereby raising the outer casing of the filter. This achieves the effect of freely adjustable height for the vertical gas filter, facilitating installation with gas pipelines.

[0004] The above-mentioned solutions, as well as traditional gas filters, are fixed with bolts. When replacing them, it is necessary not only to remove the bolts, but also to remove the old one and then install the new one. This requires the corresponding tools and involves many steps, which makes it difficult to improve the efficiency of replacement.

[0005] Therefore, a quick-connect filter cartridge gas filter is proposed to address the above problems. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] This utility model provides a quick-connect filter cartridge gas filter, which can improve the problems existing in related technologies: when replacing a gas filter, it is necessary not only to remove the bolts, but also to remove the old one and then install the new one. This requires corresponding tools and involves many steps, which makes it inconvenient to improve the replacement efficiency.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] This application provides a quick-connect type cartridge gas filter, including: a filter cartridge assembly and an installation assembly. The filter cartridge assembly includes a straight cylinder with a filter cavity inside. A feed cylinder is fixedly connected to the top of the straight cylinder, and a discharge cylinder is fixedly connected to the bottom of the straight cylinder. Both the discharge cylinder and the feed cylinder are connected to the filter cavity. Filter cartridge assemblies are disposed inside the discharge cylinder, the straight cylinder, and the feed cylinder. The installation assembly is used to install the filter cartridge assembly. The filter cartridge assembly is pressed and moved into the feed cylinder by the installation assembly. The filter cartridge assembly inside the feed cylinder is squeezed and moved into the straight cylinder. The filter cartridge assembly inside the discharge cylinder is squeezed and discharged.

[0011] The technical solutions described in this application embodiment have at least the following technical effects:

[0012] The feed cylinder and discharge cylinder are fixed at the top and bottom of the straight cylinder, respectively. The feed cylinder contains unused filter elements, the straight cylinder contains filter elements in use, and the discharge cylinder contains outdated filter elements. When a new filter element needs to be replaced, it can be pressed into the feed cylinder through the mounting component. The filter element in the feed cylinder will then move downwards to replace the one in the straight cylinder, while the one in the discharge cylinder will be squeezed out, thus completing the replacement. Then, simply tighten the sealing cap. No additional tools are required to complete the operation, improving the replacement efficiency.

[0013] In some embodiments, an air inlet pipe and an air outlet assembly are respectively provided at the outer end of the straight cylinder. The air outlet assembly includes an air outlet pipe. The air inlet pipe is fixedly installed at the outer end of the straight cylinder and communicates with the interior. The air outlet pipe extends through the side wall of the straight cylinder into the filter cavity. A sealing block is fixedly connected to one end of the air outlet pipe. Two sealing baffles are fixedly connected to the inner side wall of the straight cylinder.

[0014] In some embodiments, both the discharge cylinder and the feed cylinder are threadedly connected to a sealing cap at the end away from the straight cylinder, and a sealing ring is provided on the inner side of the sealing cap.

[0015] In some embodiments, the filter element assembly includes a filter element frame, with reinforcing rods arranged in a ring fixedly installed on the inner side of the filter element frame, and a filter screen for filtering gas installed on the outer end of the filter element frame. The filter screen is made of stainless steel, and a sealing interface is installed on the outer end of the filter element frame. The gas outlet pipe is sealed by abutting against the sealing interface through the sealing block. The gas outlet pipe is connected to the inside of the filter screen, and a sealing ring is fixedly installed on the outer end of the sealing interface.

[0016] In some embodiments, the top of the filter element frame is provided with an indicator head one, and the top edge of the feed cylinder is provided with an indicator head two. The indicator head two and the indicator head one cooperate to form an installation indicator, and the outer end of the filter element frame is fitted with two sealing devices.

[0017] In some embodiments, the sealing device includes a sealing ring with an annular cavity inside and an abutting groove at the outer end of the sealing ring. The sealing partition compresses the annular cavity to form a seal by abutting against the abutting groove.

[0018] In some embodiments, the mounting assembly includes a pressure plate, with mounting blocks fixedly connected to both sides of the pressure plate, two sliding rods fixedly mounted on the top of the straight cylinder, the pressure plate being slidably connected to the sliding rods via the mounting blocks, and a pressing block fixedly mounted on the bottom end of the pressure plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the filter cartridge assembly of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the filter cartridge assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing device structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the installation component structure of this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Discharge cylinder;

[0027] 2. Feed cylinder;

[0028] 3. Filter cartridge assembly; 31. Straight cylinder; 32. Sealing partition; 33. Filter cavity;

[0029] 4. Exhaust assembly; 41. Exhaust pipe; 42. Sealing block;

[0030] 5. Air intake pipe;

[0031] 6. Sealing cap;

[0032] 7. Slide bar;

[0033] 8. Installation components; 81. Pressure plate; 82. Installation block; 83. Pressing block;

[0034] 9. Filter element assembly; 91. Filter element holder; 92. Reinforcing rod; 93. Sealing device; 94. Sealing interface; 95. Filter screen; 96. Indicator head 1; 97. Sealing ring; 931. Sealing ring; 932. Annular cavity; 933. Abutment groove;

[0035] 10. Indicator head two. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1 - Figure 6 A quick-connect gas filter cartridge includes a filter cartridge assembly 3 and an installation assembly 8. The filter cartridge assembly 3 includes a straight cylinder 31 with a filter cavity 33 inside. A feed cylinder 2 is fixedly connected to the top of the straight cylinder 31, and a discharge cylinder 1 is fixedly connected to the bottom of the straight cylinder 31. Both the discharge cylinder 1 and the feed cylinder 2 are connected to the filter cavity 33. Filter cartridge assemblies 9 are provided inside the discharge cylinder 1, the straight cylinder 31, and the feed cylinder 2. The installation assembly 8 is used to install the filter cartridge assemblies 9. The filter cartridge assemblies 9 are pressed and moved into the feed cylinder 2 by the installation assembly 8. The filter cartridge assemblies 9 inside the feed cylinder 2 are squeezed and moved into the straight cylinder 31. The filter cartridge assemblies 9 inside the discharge cylinder 1 are squeezed and discharged.

[0038] The device in this solution is mainly installed in the gas pipeline to filter impurities in the gas. A filter cavity 33 is set inside the straight cylinder 31. The filter cavity 33 is mainly used to install the filter element assembly 9, so that the gas can be filtered through the filter element assembly 9. The feed cylinder 2 is fixed at the top of the straight cylinder 31, and the discharge cylinder 1 is fixed at the bottom of the straight cylinder 31. The discharge cylinder 1, the straight cylinder 31, and the feed cylinder 2 are connected. Filter element assemblies 9 are installed inside the feed cylinder 2, the straight cylinder 31, and the discharge cylinder 1. The filter element assembly 9 installed inside the feed cylinder 2 is not a new one, the filter element assembly 9 inside the straight cylinder 31 is in use, and the filter element assembly 9 inside the discharge cylinder 1 is obsolete. When a new filter element assembly 9 needs to be replaced, the new filter element assembly 9 can be pressed into the feed cylinder 2 through the mounting component 8. At this time, the filter element assembly 9 inside the feed cylinder 2 will move downward to replace the one inside the straight cylinder 31, and the one inside the discharge cylinder 1 will be squeezed out, thus completing the replacement. Then, only the sealing cap 6 needs to be tightened. The operation can be completed without additional tools, which improves the replacement efficiency.

[0039] Please see Figure 1 - Figure 3 An air inlet pipe 5 and an air outlet assembly 4 are respectively provided at the outer end of the straight cylinder 31. The air outlet assembly 4 includes an air outlet pipe 41. The air inlet pipe 5 is fixedly installed at the outer end of the straight cylinder 31 and connected to the interior. The air outlet pipe 41 extends through the side wall of the straight cylinder 31 into the filter cavity 33. A sealing block 42 is fixedly connected to one end of the air outlet pipe 41. Two sealing partitions 32 are fixedly connected to the inner side wall of the straight cylinder 31.

[0040] In this design, the straight cylinder 31 has an air inlet pipe 5 and an air outlet assembly 4 on its two sides. The air inlet pipe 5 is directly fixed to the outer end of the straight cylinder 31 and is connected to the filter cavity 33 inside the straight cylinder 31. The air inlet pipe 5 is connected to the external gas pipeline, and the external gas can be transported into the straight cylinder 31 through the air inlet pipe 5. The air outlet assembly 4 is mainly composed of an air outlet pipe 41 and a sealing block 42. The air outlet pipe 41 extends directly through the side wall of the straight cylinder 31 into the filter cavity 33 inside the straight cylinder 31. At the end of the air outlet pipe 41 that extends into the straight cylinder 31, the sealing block 42 is fixed. The sealing block 42 is made of rubber and has an arc-shaped design on the side that abuts against the filter element assembly 9, so that it can better fit the filter element assembly 9 to form a seal. Through the connection between the air outlet pipe 41 and the filter element assembly 9, the filtered gas can be discharged through the air outlet pipe 41. The other end of the air outlet pipe 41 needs to be connected to the gas-using equipment.

[0041] Please see Figure 1 and Figure 2 Both the discharge cylinder 1 and the feed cylinder 2 are threadedly connected to a sealing cap 6 at the end away from the straight cylinder 31, and a sealing rubber ring is provided on the inner side of the sealing cap 6.

[0042] Threads are engraved on the opposite sides of the discharge cylinder 1 and the feed cylinder 2, mainly for threaded connection of the sealing cover 6. The sealing cover 6 has a sealing gasket on its inner side. When the sealing cover 6 is tightened on the feed cylinder 2 or the discharge cylinder 1, the sealing gasket inside the sealing cover 6 will press tightly against the port of the discharge cylinder 1 or the feed cylinder 2 to form a seal and prevent gas escape.

[0043] Please see Figure 4 and Figure 5 The filter element assembly 9 includes a filter element frame 91, with a ring of reinforcing rods 92 fixedly installed on the inner side of the filter element frame 91. A filter screen 95 for filtering gas is installed on the outer end of the filter element frame 91. The filter screen 95 is made of stainless steel. A sealing interface 94 is installed on the outer end of the filter element frame 91. The gas outlet pipe 41 is sealed by a sealing block 42 against the sealing interface 94. The gas outlet pipe 41 is connected to the inside of the filter screen 95. A sealing ring 97 is fixedly installed on the outer end of the sealing interface 94.

[0044] The filter element frame 91 is provided with an indicator head 96 at the top, and the feed cylinder 2 is provided with an indicator head 10 at the top edge. The indicator head 10 and the indicator head 96 cooperate to form an installation indicator. The filter element frame 91 is fitted with two sealing devices 93 at the outer end.

[0045] The sealing device 93 includes a sealing ring 931, an annular cavity 932 is provided inside the sealing ring 931, and an abutment groove 933 is provided at the outer end of the sealing ring 931. The sealing partition 32 compresses the annular cavity 932 to form a seal by abutting against the abutment groove 933.

[0046] The filter element assembly 9 in this solution is mainly used for filtering gas. The filter element frame 91 is the main body, which is mainly composed of two ends and a middle support connected together. A filter screen 95 is installed on the outer end of the filter element frame 91. The filter screen 95 is made of stainless steel and is mainly used to intercept larger impurities. The filter screen 95 surrounds the outer surface of the filter element frame 91, so that the gas in the filter cartridge assembly 3 can be filtered and intercepted by the filter screen 95 before entering the interior of the filter screen 95. A sealing interface 94 is fixed on the outer end of the filter element frame 91. The sealing interface 94 is made of metal on the inner side of the filter screen 95 and made of rubber on the outer side. It is used to abut against the sealing block 42 to form a seal. At the same time, a sealing ring 97 is also fixed on the rubber on the outer side of the sealing interface 94. The sealing ring 97 protrudes outward and can fill the gap between it and the sealing block 42, thereby improving the sealing performance. A reinforcing rod 92 is also fixed on the inner side of the filter element frame 91. The reinforcing rod 92 mainly serves to support and improve its structural strength.

[0047] Sealing devices 93 are installed on the outer perimeter of both the upper and lower ends of the filter element holder 91. The sealing devices 93 are mainly composed of sealing rings 931. The sealing rings 931 have annular cavities 932 inside. The inner and outer edges of the sealing rings 931 have abutment grooves 933. Two sealing partitions 32 are fixed inside the straight cylinder 31. The sealing partitions 32 match the abutment grooves 933. When the filter element holder 91 is inserted into the filter cavity 33, the sealing partitions 32 will abut against the abutment grooves 933. The abutment grooves 933 will be compressed inward into the annular cavity 932. At this time, the sealing rings 931 and the sealing partitions 32 can be in close contact, thereby forming a seal. Meanwhile, since filter element assemblies 9 are also installed inside the discharge cylinder 1 and the feed cylinder 2, the sealing ring 931 will also abut against the inner wall of the discharge cylinder 1 and the feed cylinder 2 to form a seal. Through the abutment of the sealing ring 931 against the inner wall of the discharge cylinder 1 and the feed cylinder 2, the abutment of the sealing ring 931 against the sealing partition 32, and the sealing of the sealing cover 6, a triple seal can be formed, thereby ensuring the sealing performance during use and improving safety.

[0048] Please see Figure 6The mounting assembly 8 includes a pressure plate 81, with mounting blocks 82 fixedly connected to both sides of the pressure plate 81. Two sliding rods 7 are fixedly installed on the top of the straight cylinder 31. The pressure plate 81 is slidably connected to the sliding rods 7 through the mounting blocks 82. A pressing block 83 is fixedly installed at the bottom of the pressure plate 81.

[0049] In this design, two sliding rods 7 are fixed at the top of the straight cylinder 31, and an installation component 8 is set between the two sliding rods 7. The installation component 8 mainly consists of a pressure plate 81 and two installation blocks 82. The two installation blocks 82 are fixed on both sides of the pressure plate 81. The installation blocks 82 are slidably connected to the sliding rods 7. The pressure plate 81 can move up and down linearly through the installation blocks 82.

[0050] Meanwhile, a pressing block 83 is fixed at the bottom of the pressure plate 81, mainly for abutting the filter element frame 91. An indicator head 96 is printed on the top of the filter element frame 91, and an indicator head 10 is printed on the top of the feed cylinder 2. When installing the filter element assembly 9, the indicator head 96 and the indicator head 10 need to be aligned. At this time, the air outlet assembly 4 can be aligned with the sealing interface 94, and they can fit together after installation.

[0051] During installation, the new filter element assembly 9 is first placed above the existing filter element assembly 9 inside the feed cylinder 2. Then, the pressure plate 81 is mounted on the slide rod 7 via the mounting block 82, so that the pressing block 83 presses against the filter element assembly 9. The pressure plate 81 is then pressed down so that it can move straight down, pushing the new filter element assembly 9 into the feed cylinder 2 and discharging the filter element assembly 9 from the bottom discharge cylinder 1. Simultaneously, through prior alignment, the air outlet assembly 4 can also be aligned with the filter element assembly 9 to form a connection, thus enabling quick replacement.

[0052] Working principle: When the filter element assembly 9 needs to be replaced, first unscrew the sealing caps 6 on the discharge cylinder 1 and the feed cylinder 2. Then place the new filter element assembly 9 on top of the filter element assembly 9 inside the feed cylinder 2. Then, install the pressure plate 81 on the slide rod 7 through the mounting block 82, so that the pressing block 83 presses against the filter element assembly 9. Then press the pressure plate 81 down, and the filter element assembly 9 inside the feed cylinder 2 will move down to replace the one inside the straight cylinder 31, while the one inside the discharge cylinder 1 will be squeezed out, thus completing the replacement. Then, just tighten the sealing cap 6. No additional tools are required to complete the operation. At the same time, the sealing ring 931 abuts against the inner wall of the discharge cylinder 1 and the feed cylinder 2, the sealing ring 931 abuts against the sealing partition 32, and the sealing cap 6 seals, thus forming a triple seal to ensure the sealing performance during use.

Claims

1. A quick-connect filter cartridge gas filter, characterized in that, include: A filter cartridge assembly (3) includes a straight cylinder (31), a filter cavity (33) is provided inside the straight cylinder (31), a feed cylinder (2) is fixedly connected to the top of the straight cylinder (31), and a discharge cylinder (1) is fixedly connected to the bottom of the straight cylinder (31). The discharge cylinder (1) and the feed cylinder (2) are both connected to the filter cavity (33). Filter cartridge assemblies (9) are provided inside the discharge cylinder (1), the straight cylinder (31) and the feed cylinder (2). Mounting component (8) for mounting the filter element assembly (9); The filter element assembly (9) is pressed and moved into the feed cylinder (2) by the mounting assembly (8), the filter element assembly (9) inside the feed cylinder (2) is squeezed and moved into the straight cylinder (31), and the filter element assembly (9) inside the discharge cylinder (1) is squeezed and discharged.

2. A quick-connect filter cartridge gas filter according to claim 1, characterized in that: An air inlet pipe (5) and an air outlet assembly (4) are respectively provided at the outer end of the straight cylinder (31). The air outlet assembly (4) includes an air outlet pipe (41). The air inlet pipe (5) is fixedly installed at the outer end of the straight cylinder (31) and connected to the interior. The air outlet pipe (41) extends through the side wall of the straight cylinder (31) into the filter cavity (33). A sealing block (42) is fixedly connected to one end of the air outlet pipe (41). Two sealing partitions (32) are fixedly connected to the inner side wall of the straight cylinder (31).

3. A quick-connect filter cartridge gas filter according to claim 1, characterized in that: Both the discharge cylinder (1) and the feed cylinder (2) are threadedly connected to a sealing cap (6) at the end away from the straight cylinder (31), and a sealing rubber ring is provided on the inner side of the sealing cap (6).

4. A quick-connect filter cartridge gas filter according to claim 2, characterized in that: The filter element assembly (9) includes a filter element frame (91), with a ring of reinforcing rods (92) fixedly installed on the inner side of the filter element frame (91). A filter screen (95) for filtering gas is installed on the outer end of the filter element frame (91). The filter screen (95) is made of stainless steel. A sealing interface (94) is installed on the outer end of the filter element frame (91). The gas outlet pipe (41) is sealed by the sealing block (42) against the sealing interface (94). The gas outlet pipe (41) is connected to the inside of the filter screen (95). A sealing ring (97) is fixedly installed on the outer end of the sealing interface (94).

5. A quick-connect filter cartridge gas filter according to claim 4, characterized in that: The filter element frame (91) is provided with an indicator head one (96) on the top, and the feed cylinder (2) is provided with an indicator head two (10) on the top edge. The indicator head two (10) and the indicator head one (96) cooperate to form an installation indicator. The filter element frame (91) is fitted with two sealing devices (93) on its outer end.

6. A quick-connect filter cartridge gas filter according to claim 5, characterized in that: The sealing device (93) includes a sealing ring (931), an annular cavity (932) is provided inside the sealing ring (931), and an abutment groove (933) is provided at the outer end of the sealing ring (931). The sealing partition (32) forms a seal by abutting against the abutment groove (933) and compressing the annular cavity (932).

7. A quick-connect filter cartridge gas filter according to claim 1, characterized in that: The mounting assembly (8) includes a pressure plate (81), with mounting blocks (82) fixedly connected to both sides of the pressure plate (81). Two sliding rods (7) are fixedly installed on the top of the straight cylinder (31). The pressure plate (81) is slidably connected to the sliding rods (7) through the mounting blocks (82). A pressing block (83) is fixedly installed at the bottom of the pressure plate (81).

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