Filtering mechanism for purification

Abstract

The utility model discloses a filtering mechanism for purification, and relates to the technical field of gas filters. The device structurally comprises an outer cylinder and an upper cover which are connected into a whole through a bolt, an air inlet joint and an air outlet joint are fixed on the outer wall of the outer cylinder in a penetrating manner; a conical cylinder is arranged at the lower end part of the outer cylinder; a discharge pipe is mounted at the bottom of the cone; a ball valve is mounted on the discharge pipe; a cyclone blowing downwards and guiding air upwards in the middle is fixed on the inner wall of the outer cylinder body; a first filter element is mounted at the upper end of the cyclone; an L-shaped adapter which is in threaded connection with the inner wall of the air outlet joint is arranged inside the outer cylinder body; and a second filter element is mounted on the L-shaped adapter. The cyclone is installed in the outer cylinder, the air inlet connector is directly communicated with the cyclone to guide air flow downwards for primary impurity removal, then the air flow upwards enters the first filter element from the center of the cyclone for pressure-equalizing filtration, and filtered impurities and water can be separated into a buffer space below the cyclone by means of gravity. The cleaning frequency of the first filter element is effectively reduced, and the maintenance difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas filters, in particular to a filtering mechanism for purification. Background Art

[0002] Natural gas is a new energy source, the main component of which is methane, and it also contains a small amount of ethane, propane and butane. After combustion, the dye will produce carbon dioxide and water, but natural gas contains a small amount of solid impurities and moisture. Therefore, during the transmission of natural gas, the natural gas needs to be filtered to remove impurities in the natural gas, thereby improving the combustion efficiency of the natural gas and preventing solid impurities from entering the combustion device, causing blockage or damage to the device.

[0003] Because when the filter device filters natural gas, the air inlet connector is directly connected to the filter element without a buffer area in the middle, solid impurities and a mixture of water will accumulate on the inner wall of the first filter element, reducing the filtering capacity of the filter element. The large-flow airflow is directly pressurized inside the filter element, which is not conducive to the shedding of impurities attached to the inner wall of the filter element. Therefore, after a period of use, the filter element needs to be removed and then cleaned or replaced. When removing it, the upper cover needs to be opened before the filter element can be taken out. This process is complicated, time-consuming and labor-intensive. In order to solve the above technical problems, the present application document provides a purification filtering mechanism. Utility Model Content

[0004] The utility model aims to provide a filtering mechanism for purification. Through the combination of an outer cylinder, a cyclone and a first filter element, filtered impurities and water can be separated from the buffer space below the cyclone by gravity, effectively reducing the cleaning frequency of the first filter element.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a filtering mechanism for purification, comprising an outer cylinder and an upper cover connected as one by bolts; an air inlet joint and an air outlet joint are fixed through the outer wall of the outer cylinder; the lower end of the outer cylinder is arranged as a cone; an outer discharge pipe is installed at the bottom of the cone; a ball valve is installed on the outer discharge pipe; a cyclone for blowing air downward and guiding air upward in the middle is fixed on the inner wall of the outer cylinder; a first filter element is installed on the upper end of the cyclone; an L-shaped adapter threadedly connected to the inner wall of the air outlet joint is arranged inside the outer cylinder; a second filter element is installed on the L-shaped adapter.

[0007] As a preferred technical solution of the utility model, the cyclone includes a circular plate and an annular plate which are arranged in parallel and fixed on the inner wall of the outer cylinder, the circular plate is located above the annular plate, and the air inlet joint is placed between the circular plate and the annular plate; the lower surface of the circular plate and the inner ring surface of the annular plate are connected by a cylinder; the circular plate is penetrated and fixed with a filter element connector which is deviated from the axis, and the filter element connector is connected with the inner cavity of the cylinder; the annular plate is provided with oblique air guide holes which are evenly distributed in an annular shape.

[0008] As a preferred technical solution of the utility model, an oblique guide flat tube is fixed in the oblique air guide hole; a curved surface incision coaxially arranged with the inner wall of the outer cylinder is provided on the side of the lower end of the oblique guide flat tube close to the inner wall of the outer cylinder.

[0009] As a preferred technical solution of the present utility model, the first filter element is a natural gas filter element made of microfiber filter material.

[0010] As a preferred technical solution of the present utility model, the second filter element is an activated carbon natural gas filter element.

[0011] As a preferred technical solution of the utility model, a barometer is installed on the upper cover.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model installs a cyclone in the outer cylinder, and the air inlet joint directly passes through the cyclone to guide the airflow downward for preliminary impurity removal. Then the airflow enters the first filter element upward from the center of the cyclone for pressure-equalizing filtration. The filtered impurities and water can be separated from the buffer space below the cyclone by gravity, which effectively reduces the cleaning frequency of the first filter element and reduces the difficulty of maintenance.

[0014] 2. The utility model forms a spiral airflow in the inner wall of the outer cylinder and the cone at the lower end through the combination of the cyclone and the oblique guide flat tube, and the arc cutouts of the oblique guide flat tube effectively increase the contact area between the spiral airflow and the inner wall of the outer cylinder, effectively improving the efficiency of particles entering the outer discharge pipe below along the spiral line, and removing large particles.

[0015] 3. The utility model installs a pressure gauge on the upper cover to measure the air pressure in the outer cylinder above the circular plate, and evaluates whether the first filter element 5 and the second filter element 7 need to be replaced based on the pressure value here.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of the purification filtering mechanism of the utility model.

[0019] Figure 2 It is a structural sectional view of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the outer cylinder and the cyclone.

[0021] Figure 4 It is a schematic diagram of the structure of an L-shaped adapter.

[0022] Figure 5 It is a schematic diagram of the structure of the oblique guide flat tube.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-outer cylinder, 2-upper cover, 3-ball valve, 4-cyclone, 5-first filter element, 6-L-shaped adapter, 7-second filter element, 8-oblique guide flat tube, 11-air inlet connector, 12-air outlet connector, 13-conical cylinder, 14-external exhaust pipe, 41-circular plate, 42-cylinder, 43-filter element connector, 44-circular ring plate, 45-oblique air guide hole, 81-arc incision. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment one:

[0027] See also Figure 1-5As shown, the utility model is a filtering mechanism for purification, comprising an outer cylinder 1 and an upper cover 2 connected as one body by bolts. An air inlet joint 11 and an air outlet joint 12 are fixed through the outer wall of the outer cylinder 1. The lower end of the outer cylinder 1 is set as a cone 13. An outer discharge pipe 14 is installed at the bottom of the cone 13. A ball valve 3 is installed on the outer discharge pipe 14. A cyclone 4 that blows air downward and guides air upward in the middle is fixed on the inner wall of the outer cylinder 1. A first filter element 5 is installed on the upper end of the cyclone 4. An L-shaped adapter 6 that is threadedly connected to the inner wall of the air outlet joint 12 is arranged inside the outer cylinder 1. A second filter element 7 is installed on the L-shaped adapter 6. By installing the cyclone 4 in the outer cylinder 1, the air inlet joint 11 directly passes through the cyclone 4 to guide the airflow downward for preliminary impurity removal, and then the airflow enters the first filter element 5 from the center of the cyclone 4 upward for equal pressure filtration. The filtered impurities and water can rely on gravity to separate from the buffer space below the cyclone 4, effectively reducing the cleaning frequency of the first filter element 5 and reducing the difficulty of maintenance.

[0028] The cyclone 4 includes a circular plate 41 and an annular plate 44 which are arranged in parallel and fixed on the inner wall of the outer cylinder 1. The circular plate 41 is located above the annular plate 44, and the air inlet connector 11 is placed between the circular plate 41 and the annular plate 44. The lower surface of the circular plate 41 and the inner annular surface of the annular plate 44 are connected by a cylinder 42. The circular plate 41 is penetrated and fixed with a filter element connector 43 which is deviated from the axis, and the filter element connector 43 is connected with the inner cavity of the cylinder 42. The annular plate 44 is provided with oblique air guide holes 45 which are evenly distributed in an annular shape. The oblique air guide holes 45 are fixed with oblique guide flat tubes 8. The lower end of the oblique guide flat tube 8 is provided with an arc cutout 81 which is coaxially arranged with the inner wall of the outer cylinder 1 on one side close to the inner wall of the outer cylinder 1. The combination of the cyclone 4 and the oblique guide flat tube 8 forms a spiral airflow in the inner wall of the outer cylinder 1 and the cone 13 at the lower end, and the arc cutout 81 opened in the oblique guide flat tube 8 effectively increases the contact area between the spiral airflow and the inner wall of the outer cylinder 1, effectively improving the efficiency of particles entering the outer discharge pipe 14 below along the spiral line, and removing large particles.

[0029] The first filter element 5 specifically uses a natural gas filter element made of microfiber filter material to remove impurities, including liquid and solid particles in the gas, to ensure cleanliness and safe transportation in the pipeline.

[0030] The second filter element 7 specifically uses an activated carbon natural gas filter element to remove harmful substances in the gas, such as hydrogen sulfide, so as to protect the environment and human health.

[0031] Among them, a pressure gauge is also installed on the upper cover 2 to measure the air pressure in the outer cylinder 1 above the circular plate 41, that is, the pressure of the natural gas after passing through the first filter element 5 but not through the second filter element 7. The pressure value here is used to evaluate whether the status of the first filter element 5 and the second filter element 7 needs to be replaced.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filtering mechanism for purification, characterized in that: It comprises an outer cylinder (1) and an upper cover (2) connected as one body by bolts; An air inlet joint (11) and an air outlet joint (12) are fixedly connected through the outer wall of the outer cylinder (1); The lower end of the outer cylinder (1) is configured as a cone (13); an outer discharge pipe (14) is installed at the bottom of the cone (13); and a ball valve (3) is installed on the outer discharge pipe (14); A cyclone (4) for blowing air downward and guiding air upward in the middle is fixed to the inner wall of the outer cylinder (1); A first filter element (5) is installed at the upper end of the cyclone (4); An L-shaped adapter (6) is provided inside the outer cylinder (1) and is threadedly connected to the inner wall of the air outlet connector (12); a second filter element (7) is installed on the L-shaped adapter (6).

2. The purification filtering mechanism according to claim 1, characterized in that: The cyclone (4) comprises a circular plate (41) and a circular ring plate (44) which are arranged in parallel and fixed on the inner wall of the outer cylinder (1); the circular plate (41) is located above the circular ring plate (44); the air inlet joint (11) is arranged between the circular plate (41) and the circular ring plate (44); the lower surface of the circular plate (41) and the inner ring surface of the circular ring plate (44) are connected via a cylinder (42); a filter element connector (43) which is offset from the axis is passed through and fixed to the circular plate (41), and the filter element connector (43) is communicated with the inner cavity of the cylinder (42); and the circular ring plate (44) is provided with oblique air guide holes (45) which are evenly distributed in an annular shape.

3. The purification filtering mechanism according to claim 2, characterized in that: An oblique air guide flat tube (8) is fixed in the oblique air guide hole (45); a curved surface cutout (81) coaxially arranged with the inner wall of the outer cylinder (1) is formed at a side of the lower end of the oblique air guide flat tube (8) close to the inner wall of the outer cylinder (1).

4. The purification filtering mechanism according to claim 3, characterized in that: The first filter element (5) is a natural gas filter element made of microfiber filter material.

5. The purification filtering mechanism according to claim 4, characterized in that: The second filter element (7) is an activated carbon natural gas filter element.

6. The purification filtering mechanism according to claim 1, characterized in that: A barometer is installed on the upper cover (2).

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