CNG purification device

Abstract

The utility model discloses a CNG purification device, which comprises: a shell, a side wall of which is fixedly connected with an air inlet pipe; a sealing cover, which is arranged at the upper end of the shell and is used for sealing the shell; an air outlet pipe, which is fixedly penetrated through the sealing cover; a filter cartridge, which is arranged in the shell and is fixedly connected with the air outlet pipe; a cleaning device, which is arranged in the shell and is used for cleaning impurities attached to the inner wall surface of the shell and the outer surface of the filter cartridge; under the coordinated use of a driving device and a cleaning device, impurities attached to the outer surface of the filter cartridge can be cleaned without disassembling the overall device, which can prevent the accumulation of impurities from clogging the filter cartridge, thereby affecting the purification effect of the filter cartridge on natural gas, and bringing convenience to people.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas, in particular to a CNG purification device. Background Art

[0002] Natural gas is a type of combustible gas that exists in nature. Its main components are hydrocarbons and non-hydrocarbon gases. Therefore, it produces yellow or blue flames when burned. It is a fossil fuel. The main use of natural gas is as fuel gas. Before natural gas is used, impurities in the raw fuel gas need to be removed to make it meet the quality requirements of urban gas. There are special equipment for natural gas purification, which uses a filtering structure to filter out dust, sulfides and other substances in the raw fuel gas.

[0003] Existing natural gas purification devices are prone to produce a large amount of impurities after processing natural gas for a long time. These impurities adhere to the surface of the filter cartridge that filters the natural gas, which can easily cause clogging of the filter cartridge and affect the purification effect. At the same time, when the staff are cleaning the impurities in the natural gas purification device, they need to turn off the natural gas before they can disassemble the purification device, which can easily affect the user's use of natural gas. Utility Model Content

[0004] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a CNG purification device, including:

[0005] The shell body has a side wall fixedly connected with an air intake pipe;

[0006] A sealing cover, disposed at the upper end of the housing, for sealing the housing;

[0007] An air outlet pipe fixedly passing through the sealing cover;

[0008] A filter cartridge is disposed in the housing and fixedly connected to the air outlet pipe;

[0009] A cleaning device, disposed in the housing, for cleaning impurities attached to the inner wall surface of the housing and the outer surface of the filter cartridge;

[0010] The collecting device is arranged on the lower wall of the shell and is used for collecting the impurities.

[0011] Preferably, the cleaning device comprises:

[0012] An annular block is disposed in the housing and is rotatably connected to the lower wall surface of the sealing cover;

[0013] A fixing rod, symmetrically arranged on the lower end surface of the annular block;

[0014] A cleaning brush is fixedly mounted on the outer surface of the fixing rod and is in contact with the inner wall surface of the housing and the outer surface of the filter cartridge respectively;

[0015] A driving device is arranged on the sealing cover and is used for driving the annular block to rotate.

[0016] Preferably, the driving device comprises:

[0017] A rotating shaft, rotatably connected to the sealing cover;

[0018] A gear, fixedly mounted on the bottom end of the rotating shaft;

[0019] An outer gear ring, fixedly mounted on the outer surface of the annular block and meshingly connected with the gear;

[0020] A reducer, which is arranged on the upper end surface of the sealing cover, and the output end of which is fixedly connected to one end of the rotating shaft;

[0021] The driving member is fixedly mounted on the upper end surface of the sealing cover, and the output end is fixedly connected to the input end of the reducer.

[0022] Preferably, the collecting device comprises:

[0023] A collecting shell, fixedly mounted on the lower wall of the shell and communicated with the shell;

[0024] A waste box is arranged on one side of the collection shell, and a side wall is fixedly connected to one end of the collection shell;

[0025] A sliding block, slidably mounted in the collecting shell;

[0026] A sealing ring, symmetrically arranged on the outer surface of the sliding block, with one end surface in sliding contact with the inner wall surface of the collecting shell;

[0027] The electric push rod is fixedly mounted on one end surface of the collecting shell, and the telescopic end is fixedly connected to one end of the sliding block.

[0028] Preferably, a connecting frame is fixedly mounted on the outer surface of the lower end of the fixing rod, a scraper is fixedly mounted on the outer surface of the connecting frame, and the scraper is in sliding contact with the inner lower wall surface of the shell.

[0029] The beneficial technical effect of the utility model is that under the coordinated use of the driving device and the cleaning device, the impurities attached to the outer surface of the filter cartridge can be cleaned without disassembling the entire device, which can prevent the accumulation of impurities from clogging the filter cartridge and thus affecting the purification effect of the filter cartridge on natural gas;

[0030] At the same time, under the action of the collecting device, the impurities cleaned by the cleaning device can be collected while the filter cartridge is purifying the natural gas, so that the natural gas can be continuously purified to avoid affecting the user's use and bring convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the front cross-sectional structure of the utility model is shown.

[0032] Figure 2 The utility model is shown Figure 1 Schematic diagram of the enlarged structure of part A.

[0033] Figure numerals 1, housing, 2, sealing cover, 3, air outlet pipe, 4, filter cartridge, 5, annular block, 6, fixing rod, 7, cleaning brush, 8, rotating shaft, 9, gear, 10, outer gear ring, 11, reducer, 12, driving member, 13, collecting shell, 14, waste box, 15, sliding block, 16, sealing ring, 17, electric push rod, 18, connecting frame, 19, scraper. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] The utility model proposes a CNG purification device, comprising;

[0036] The housing 1 has a side wall fixedly connected to an air intake pipe;

[0037] The air inlet pipe can deliver unpurified natural gas into the housing 1;

[0038] A sealing cover 2 is disposed at the upper end of the housing 1 and is used to seal the housing 1;

[0039] The sealing cover 2 is fixedly mounted on the upper end surface of the shell 1 by bolts, and can seal the shell 1 to prevent natural gas leakage;

[0040] An air outlet pipe 3 is fixedly connected through the sealing cover 2;

[0041] The gas outlet pipe 3 can discharge the natural gas to the outside of the shell 1;

[0042] The filter cartridge 4 is disposed in the housing 1 and is fixedly connected to the air outlet pipe 3;

[0043] The filter cartridge 4 can filter the natural gas and filter out the impurities contained therein;

[0044] A cleaning device is provided in the housing 1 and is used to clean impurities attached to the inner wall surface of the housing 1 and the outer surface of the filter cartridge 4;

[0045] The collecting device is arranged on the lower wall of the shell 1 and is used for collecting impurities.

[0046] Specifically, the cleaning device includes:

[0047] The annular block 5 is disposed in the housing 1 and is rotatably connected to the lower wall surface of the sealing cover 2;

[0048] The lower end surface of the sealing cover 2 is formed with an annular groove, one end of the annular block 5 is slidably installed in the annular groove, and the inner wall surface of the annular groove is formed with an annular limiting groove, and the outer surface of the annular block 5 is welded with an annular limiting block slidably connected to the annular limiting groove, so that the annular block 5 can be more stable when sliding in the annular groove;

[0049] The fixing rod 6 is symmetrically arranged on the lower end surface of the annular block 5;

[0050] The top end of the fixing rod 6 is welded to the lower end surface of the annular block 5, so that the annular block 5 can drive it to rotate when it rotates;

[0051] The cleaning brush 7 is fixedly mounted on the outer surface of the fixing rod 6 and is in contact with the inner wall surface of the housing 1 and the outer surface of the filter cartridge 4 respectively;

[0052] The rotation of the annular block 5 drives the fixed rod 6 to rotate, and the rotation of the fixed rod 6 can drive the cleaning brush 7 to rotate. The cleaning brush 7 can respectively brush the inner wall surface of the housing 1 and the outer surface of the filter cartridge 4 to clean the impurities attached thereon, and the cleaned impurities fall downwards;

[0053] The driving device is arranged on the sealing cover 2 and is used for driving the annular block 5 to rotate.

[0054] Specifically, the driving device includes:

[0055] A rotating shaft 8 is rotatably connected to the sealing cover 2;

[0056] Gear 9, fixedly mounted on the bottom end of the rotating shaft 8;

[0057] The outer gear ring 10 is fixedly mounted on the outer surface of the annular block 5 and meshedly connected with the gear 9;

[0058] The reducer 11 is arranged on the upper end surface of the sealing cover 2, and the output end is fixedly connected to one end of the rotating shaft 8;

[0059] The driving member 12 is fixedly mounted on the upper end surface of the sealing cover 2, and the output end is fixedly connected to the input end of the reducer 11;

[0060] The driving member 12 is a motor, and the rotation of its output end can drive the reducer 11 to rotate. The reducer 11 can reduce the rotation speed input by the driving member 12 and drive the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 can drive the gear 9 to rotate, so that the gear 9 rotates and drives the outer ring gear 10 to rotate. The rotation of the outer ring gear 10 can drive the annular block 5 to rotate at the same time.

[0061] Specifically, the collecting device includes:

[0062] The collecting shell 13 is fixedly mounted on the lower wall of the shell 1 and communicated with the shell 1;

[0063] The impurities cleaned by the cleaning brush 7 can fall into the collection shell 13;

[0064] The waste box 14 is disposed on one side of the collection shell 13, and one side wall is fixedly connected to one end of the collection shell 13;

[0065] A sliding block 15 is slidably mounted in the collecting shell 13;

[0066] The sliding block 15 slides in the collecting shell 13, and can seal the connection between the shell 1 and the collecting shell 13, and can also push the impurities in the shell 13 into the waste box 14, which is convenient for the staff to collect. At the same time, a cleaning port is formed on one side wall of the waste box 14, and a sealing door for sealing the cleaning port is hinged on the outer wall surface of the waste box 14. The sealing door can seal the waste box 14 to prevent natural gas leakage, and the cleaning port can facilitate the staff to collect the impurities in the waste box 14;

[0067] The sealing ring 16 is symmetrically arranged on the outer surface of the sliding block 15, and one end surface thereof is in sliding contact with the inner wall surface of the collecting shell 13;

[0068] An annular groove is formed on the outer surface of the sliding block 15, and a sealing ring 16 is fixedly installed in the annular groove. Under the action of the sealing ring 16, the sealing performance of the sliding block 15 on the connection between the housing 1 and the collecting shell 13 can be improved, so that it can better seal them;

[0069] The electric push rod 17 is fixedly mounted on one end surface of the collecting shell 13, and the telescopic end is fixedly connected to one end of the sliding block 15;

[0070] The telescopic end of the electric push rod 17 extends or contracts, which can drive the sliding block 15 to move, so as to facilitate the sealing of the connection between the shell 1 and the collection shell 13.

[0071] Specifically, a connecting frame 18 is fixedly mounted on the outer surface of the lower end of the fixing rod 6, and a scraper 19 is fixedly mounted on the outer surface of the connecting frame 18, and the scraper 19 is in sliding contact with the inner lower wall surface of the housing 1;

[0072] The lower wall of the shell 1 is an inclined surface. At the same time, the rotation of the fixing rod 6 can drive the connecting frame 18 to rotate, so that the connecting frame 18 drives the scraper 19 to rotate, and the lower wall of the shell 1 is scraped to prevent impurities from adhering and facilitate their falling.

[0073] Working principle: Unfiltered natural gas enters the housing 1 through the air inlet pipe, and the filter cartridge 4 filters it at this time. The filtered natural gas is discharged from the air outlet pipe 3. When the natural gas is filtered for a long time, a large amount of impurities are attached to the outer surface of the filter cartridge 4 and the inner wall of the housing 1. The staff starts the driving member 12, and the output end of the driving member 12 rotates to drive the reducer 11 to rotate. The reducer 11 can reduce the speed input by the driving member 12 and drive the shaft 8 to rotate. The rotation of the shaft 8 can drive the gear 9 to rotate, so that the gear 9 rotates and drives the outer gear ring 10 to rotate. The rotation of the outer gear ring 10 can drive the annular block 5 to rotate at the same time. The rotation of the annular block 5 drives the fixed rod 6 to rotate. The rotation of the fixed rod 6 can drive the cleaning brush 7 to rotate. The rotation of the cleaning brush 7 can The inner wall surface of the shell 1 and the outer surface of the filter cartridge 4 are brushed respectively to clean the impurities attached thereto, and the cleaned impurities fall downward. At the same time, the fixing rod 6 can drive the connecting frame 18 and the scraper 19 to rotate, so that the scraper 10 scrapes off the impurities attached to the lower wall surface inside the shell 1. At this time, the staff starts the electric push rod 17, and the telescopic end of the electric push rod 17 contracts to drive the sliding block 15 to move, so that the impurities in the shell 1 fall into the collecting shell 13. After the falling is completed, the staff starts the electric push rod 17 to extend the telescopic end and drive the sliding block 15 to move, and the position where the shell 1 is connected to the collecting shell 13 is blocked and sealed. At the same time, the sliding block 15 pushes the impurities into the waste box 14 while moving, so that it is convenient for personnel to collect and bring convenience to people.

[0074] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0075] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0076] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0077] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0078] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A CNG purification device, characterized in that: include; The housing (1) has a side wall fixedly connected to an air intake pipe; A sealing cover (2) is arranged at the upper end of the shell (1) and is used to seal the shell (1); An air outlet pipe (3) fixedly extending through the sealing cover (2); A filter cartridge (4) is disposed in the housing (1) and is fixedly connected to the air outlet pipe (3); a cleaning device, disposed in the housing (1), and used for cleaning impurities attached to the inner wall surface of the housing (1) and the outer surface of the filter cartridge (4); A collecting device, arranged on the lower wall of the shell (1), and used for collecting the impurities; The cleaning device comprises: An annular block (5) is disposed in the housing (1) and is rotatably connected to the lower wall surface of the sealing cover (2); A fixing rod (6) symmetrically arranged on the lower end surface of the annular block (5); A cleaning brush (7) is fixedly mounted on the outer surface of the fixing rod (6) and is in contact with the inner wall surface of the housing (1) and the outer surface of the filter cartridge (4) respectively; A driving device is arranged on the sealing cover (2) and is used to drive the annular block (5) to rotate.

2. A CNG purification device according to claim 1, characterized in that: The driving device comprises: A rotating shaft (8) rotatably connected to the sealing cover (2); A gear (9) fixedly mounted on the bottom end of the rotating shaft (8); An outer gear ring (10) is fixedly mounted on the outer surface of the annular block (5) and meshingly connected with the gear (9); A reducer (11) is arranged on the upper end surface of the sealing cover (2), and an output end is fixedly connected to one end of the rotating shaft (8); The driving member (12) is fixedly mounted on the upper end surface of the sealing cover (2), and the output end is fixedly connected to the input end of the reducer (11).

3. A CNG purification device according to claim 1, characterized in that: The collecting device comprises: A collecting shell (13) fixedly mounted on the lower wall of the shell (1) and in communication with the shell (1); A waste box (14) is arranged on one side of the collection shell (13), and a side wall is fixedly connected to one end of the collection shell (13); A sliding block (15) slidably mounted in the collecting shell (13); A sealing ring (16) is symmetrically arranged on the outer surface of the sliding block (15), and one end surface thereof is in sliding contact with the inner wall surface of the collecting shell (13); The electric push rod (17) is fixedly mounted on one end surface of the collection shell (13), and the telescopic end is fixedly connected to one end of the sliding block (15).

4. A CNG purification device according to claim 1, characterized in that: A connecting frame (18) is fixedly mounted on the outer surface of the lower end of the fixing rod (6), and a scraper (19) is fixedly mounted on the outer surface of the connecting frame (18), wherein the scraper (19) is in sliding contact with the inner lower wall surface of the housing (1).

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