Combined filter structure

Abstract

The utility model belongs to the field of filters, and discloses a combined filter structure which comprises a filter A and a filter B which are the same in structure, and gas inlets and gas outlets of the filter A and the filter B form parallel pipelines through two pipelines; the parallel pipeline comprises an air inlet pipe A, an air inlet pipe B, an air outlet pipe A and an air outlet pipe B, air inlets of the filter A and the filter B are connected with the air inlet pipe A and the air inlet pipe B respectively, and air outlets of the filter A and the filter B are connected with the air outlet pipe A and the air outlet pipe B; an air inlet pipe A valve, an air inlet pipe B valve, an air outlet pipe A valve and an air outlet pipe B valve are respectively mounted on the air inlet pipe A, the air inlet pipe B, the air outlet pipe A and the air outlet pipe B; the air outlet of the filter A and the air inlet of the filter B are connected with a series connection pipe, and a series connection pipe valve is mounted on the series connection pipe. According to the utility model, in the gas filtering process, the filter can be freely adjusted into a parallel pipeline or a series pipeline for gas with less or more impurities in a pipeline.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter field, especially relate to a combined filter structure. BACKGROUND

[0002] The gas filter is a device for filtering gas, which is usually composed of filter core and shell and other parts. The filter core serves as a filter medium for trapping impurities in the gas, while the shell serves to support the filter material and protect the filter core. When dust-containing gas enters the gas filter, the dust is trapped on the inner surface of the filter core, and the clean gas flow passes through the filter core to the outer cylinder, thereby completing the dust removal process.

[0003] The existing filter usually uses two combinations to form a parallel or series pipeline filtration system. The parallel pipeline can improve the filtration efficiency, and the series pipeline can improve the filtration effect. However, in the actual gas filtration process, the filter cannot be freely adjusted to a parallel or series pipeline for gas with less or more impurities in the pipeline, and further improvement is needed. UTILITY MODEL

[0004] The utility model aims at providing a combined filter structure to solve the problem that the filter cannot be freely adjusted to a parallel or series pipeline for gas with less or more impurities in the pipeline in the actual gas filtration process.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A combined filter structure, comprising filter A and filter B with the same structure, wherein the gas inlet and outlet of filter A and filter B form a parallel pipeline through two pipelines; the parallel pipeline comprises inlet pipe A, inlet pipe B, outlet pipe A and outlet pipe B; the inlet of filter A and filter B is connected with inlet pipe A and inlet pipe B respectively, and the outlet of filter A and filter B is connected with outlet pipe A and outlet pipe B respectively; inlet pipe A valve, inlet pipe B valve, outlet pipe A valve and outlet pipe B valve are installed on inlet pipe A, inlet pipe B, outlet pipe A and outlet pipe B respectively; a series pipeline is connected between the outlet of filter A and the inlet of filter B, and a series pipeline valve is installed on the series pipeline.

[0007] Preferably, the other end of inlet pipe A and inlet pipe B is connected through an inlet three-way pipe, the other interface of the inlet three-way pipe is a total inlet, the other end of outlet pipe A and outlet pipe B is connected through an outlet three-way pipe, and the other interface of the outlet three-way pipe is a total outlet.

[0008] Preferably, the filter A is connected with a reversing tee A between the gas outlet and the gas outlet pipe A, and the other interface of the reversing tee A is connected with one end of the series pipe, and the filter B is connected with a reversing tee B between the gas inlet and the gas inlet pipe B, and the other interface of the reversing tee B is connected with the other end of the series pipe.

[0009] Preferably, the filter A or the filter B is connected by an upper valve body and a lower valve body, and the lower valve body is placed with a filter core, and the lower valve body is installed on the rotating installation device.

[0010] Preferably, the rotating installation device comprises a stand, a base, a cross plate and a connecting sleeve, the stand is vertical, and the bottom is welded with the base, the base is fixed on the ground by bolts, the top of the stand is connected with the horizontal cross plate through bearings, and the four ends of the cross plate are respectively fixed with the connecting sleeves, and the four connecting sleeves are respectively fixed with the lower valve bodies.

[0011] Preferably, the connecting sleeve is radially installed with a positioning bolt, and the lower valve body is fixed on the connecting sleeve through the positioning bolt.

[0012] Preferably, among the four lower valve bodies, the lower valve body not connected with the two upper valve bodies is a standby lower valve body, and the top of the standby lower valve body is covered with a protective cap.

[0013] The utility model has the following beneficial effects:

[0014] 1, open the inlet pipe A valve, inlet pipe B valve, outlet pipe A valve, outlet pipe B valve, close the series pipe valve, make the filter A and filter B pipeline parallel connection, realize gas from filter A and filter B single filter gas, improve the filtration efficiency of gas, open the inlet pipe A valve, series pipe valve, outlet pipe B valve, close the inlet pipe B valve, outlet pipe A valve, make the filter A and filter B pipeline series connection, realize gas by filter A again to filter B filter gas, improve the filtration effect of gas, for less or more impurities gas, through a plurality of valves can adjust filter A and filter B pipeline parallel connection and series connection realize different effect;

[0015] 2, the rotating installation device can place the standby lower valve body, improve the filter core replacement efficiency of filter A and filter B, also can hold the lower valve body through the cross plate and carry out horizontal rotation, save the physical strength consumed by artificial replacement filter core. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is filter A and filter B pipeline parallel connection schematic diagram of the utility model;

[0017] Figure 2 It is filter A and filter B pipeline series connection schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram showing the connection between filter A and filter B of this utility model and the rotating mounting device;

[0019] Icons: 1. Filter A; 2. Filter B; 3. Inlet Pipe A; 31. Inlet Pipe A Valve; 4. Inlet Pipe B; 41. Inlet Pipe B Valve; 5. Outlet Pipe A; 51. Outlet Pipe A Valve; 6. Outlet Pipe B; 61. Outlet Pipe B Valve; 7. Inlet Tee; 71. Main Inlet; 8. Outlet Tee; 81. Main Outlet; 9. Reversing Tee A; 10. Reversing Tee B; 11. Series Pipe; 111. Series Pipe Valve; 12. Upper Valve Body; 13. Lower Valve Body; 14. Filter Element; 15. Rotary Mounting Device; 151. Column; 152. Base; 153. Cross Plate; 154. Connecting Sleeve; 155. Positioning Bolt; 16. Protective Cap. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-3As shown, in the present embodiment, a combined filter structure includes filter A1 and filter B2 which are identical in structure, and the gas inlet and outlet of the filter A1 and filter B2 are connected by two pipelines to form parallel pipelines, so that the gas filter A1 and filter B2 can filter the gas separately, and the filtering efficiency of the gas is improved; the parallel pipelines include gas inlet pipe A3, gas inlet pipe B4, gas outlet pipe A5 and gas outlet pipe B6, the gas inlet of the filter A1 and filter B2 is respectively connected with the gas inlet pipe A3 and gas inlet pipe B4, and the gas outlet of the filter A1 and filter B2 is connected with the gas outlet pipe A5 and gas outlet pipe B6; the gas inlet pipe A3, gas inlet pipe B4, gas outlet pipe A5 and gas outlet pipe B6 are respectively provided with gas inlet pipe A valve 31, gas inlet pipe B valve 41, gas outlet pipe A valve 51 and gas outlet pipe B valve 61, which control the flow of each pipeline and also facilitate the isolation of the pipeline gas flow when the filter A1 and filter B2 are replaced; the gas outlet of the filter A1 and the gas inlet of the filter B2 are connected with a series pipeline 11, and the series pipeline is provided with a series pipeline valve 111; the gas inlet pipe A valve 31, series pipeline valve 111 and gas outlet pipe B valve 61 are opened, and the gas inlet pipe B valve 41 and gas outlet pipe A valve 51 are closed, so that the pipelines of the filter A1 and filter B2 are connected in series, and the gas is filtered by the filter A1 and then by the filter B2, so that the filtering effect of the gas is improved.

[0023] Further, the other ends of the gas inlet pipe A3 and gas inlet pipe B4 are connected by a gas inlet three-way pipe 7, the other end of the gas inlet three-way pipe 7 is a total gas inlet 71, so that the gas inlet pipe A3 and gas inlet pipe B4 can intake gas through the total gas inlet 71; the other ends of the gas outlet pipe A5 and gas outlet pipe B6 are connected by a gas outlet three-way pipe 8, the other end of the gas outlet three-way pipe 8 is a total gas outlet 81, so that the gas outlet pipe A5 and gas outlet pipe B6 can exhaust gas through the total gas outlet 81.

[0024] Further, the gas outlet of the filter A1 and the gas outlet pipe A5 are further connected with a reversing three-way pipe A9, the other end of the reversing three-way pipe A9 is connected with one end of the series pipeline 11; the gas inlet of the filter B2 and the gas inlet pipe B4 are further connected with a reversing three-way pipe B10, the other end of the reversing three-way pipe B10 is connected with the other end of the series pipeline 11. The reversing three-way pipe A9 and reversing three-way pipe B10 facilitate the connection of each pipeline and also facilitate installation and maintenance.

[0025] Specifically, the filter A1 or filter B2 is connected by an upper valve body 12 at the upper part and a lower valve body 13 at the lower part, the lower valve body 13 is placed with a filter core 14, and the lower valve body 13 is installed on a rotating installation device 15, so that the lower valve body 13 can be replaced and installed through the rotating installation device 15.

[0026] Specifically, the rotating installation device 15 includes a column 151, a base 152, a cross plate 153, and connecting sleeves 154. The column 151 is vertical, and the base 152 is welded to its bottom. The base 152 is fixed to the ground with bolts. The top of the column 151 is connected to a horizontal cross plate 153 via bearings. Connecting sleeves 154 are fixed to the four ends of the cross plate 153, and lower valve bodies 13 are fixed to the four connecting sleeves 154 respectively. The lower valve bodies 13 can be rotated and replaced by rotating the cross plate 153, reducing replacement time. By fixing the height of the lower valve bodies 13, manual lifting of the lower valve bodies 13 is not required, saving labor. In addition, spare filter elements can be stored in the two lower valve bodies 13, eliminating the need to search for filter elements separately and facilitating emergency replacement.

[0027] Specifically, a positioning bolt 155 is radially installed on the connecting sleeve 154, and the lower valve body 13 is fixed to the connecting sleeve 154 by the positioning bolt 155. This allows the lower valve body 13 to move up and down, facilitating its close-to-the-lower fixed installation with the upper valve body 12.

[0028] Furthermore, one of the four lower valve bodies 13 that is not connected to the two upper valve bodies 12 is designated as a spare lower valve body 13, and a protective cap 16 is attached to the top of the spare lower valve body 13. This prevents debris from falling into the two spare lower valve bodies 13 and protects the internal filter element 14.

[0029] The working principle of this utility model is as follows:

[0030] When filtering gases with few impurities, filters A1 and B2 are connected in parallel, such as... Figure 1 As shown, open valve 31 of inlet pipe A, valve 41 of inlet pipe B, valve 51 of outlet pipe A, and valve 61 of outlet pipe B, and close valve 111 of the series pipe. The gas to be filtered enters from the main inlet 71 and is diverted through inlet pipe A3 and inlet pipe B4 to enter filter A1 and filter B2. The gas is filtered separately by filter A1 and filter B2 to improve filtration efficiency. The filtered gas is collected through outlet pipe A5 and outlet pipe B6 and discharged from the main outlet 81.

[0031] When filtering gases with many impurities, filter A1 and filter B2 are connected in series, such as... Figure 2 As shown, open the inlet pipe A valve 31, the series pipe valve 111, and the outlet pipe B valve 61, and close the inlet pipe B valve 41 and the outlet pipe A valve 51. This allows the gas to be filtered by the filter A1 and then the filter B2 combination, improving the filtration effect. The filtered gas then flows out from the main outlet 81 through the outlet pipe B6.

[0032] When the filter core 14 is replaced, the upper valve body 12 and the lower valve body 13 of the filter A1 and the filter B2 are dismounted, the protective cap 16 on the other two standby lower valve bodies 13 is taken out, the cross plate 153 is rotated by 90 degrees, the two standby lower valve bodies 13 are rotated to be installed below the upper valve body 12, the used filter core 14 is replaced by a new filter core, and the protective cap 16 is covered to protect the same for the next replacement.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined filter structure comprising a filter A (1) and a filter B (2) of identical construction, characterized in that, The filter A (1) and filter B (2) gas inlet and outlet are connected by two parallel pipelines; Parallel pipeline includes air inlet pipe A (3), air inlet pipe B (4), air outlet pipe A (5), air outlet pipe B (6), the filter A (1) and filter B (2) inlet are respectively connected with air inlet pipe A (3), air inlet pipe B (4), filter A (1) and filter B (2) outlet are connected with air outlet pipe A (5), air outlet pipe B (6); The air inlet pipe A (3), air inlet pipe B (4), air outlet pipe A (5), air outlet pipe B (6) are respectively provided with air inlet pipe A valve (31), air inlet pipe B valve (41), air outlet pipe A valve (51), air outlet pipe B valve (61). The outlet of filter A (1) and the inlet of filter B (2) are connected with series pipeline (11), and the series pipeline is provided with series pipeline valve (111).

2. A combined filter structure according to claim 1, characterized in that The other end of air inlet pipe A (3) and air inlet pipe B (4) is connected through air inlet tee joint (7), and the other end of air outlet pipe A (5) and air outlet pipe B (6) is connected through air outlet tee joint (8), and the other end of air outlet tee joint (8) is connected with total air outlet (81).

3. A combined filter structure according to claim 1, characterized in that The outlet of filter A (1) and air outlet pipe A (5) are further connected with reversing tee joint A (9), and the other end of reversing tee joint A (9) is connected with one end of series pipeline (11), and the inlet of filter B (2) and air inlet pipe B (4) are further connected with reversing tee joint B (10), and the other end of reversing tee joint B (10) is connected with the other end of series pipeline (11).

4. The combination filter structure of claim 1, wherein The filter A (1) or filter B (2) is connected by upper valve body (12) and lower valve body (13), the lower valve body (13) is placed with filter core (14), and the lower valve body (13) is installed on rotating installation device (15).

5. A combined filter structure according to claim 4, characterized in that The rotating installation device (15) includes stand (151), base (152), cross plate (153) and connecting sleeve (154), the stand (151) is vertical, and the bottom is welded with base (152), the base (152) is fixed on the ground by bolts, the top of stand (151) is connected with horizontal cross plate (153) through bearing, and the four ends of cross plate (153) are respectively fixed with connecting sleeve (154), and the four connecting sleeves (154) are respectively fixed with lower valve body (13).

6. A combined filter structure according to claim 5, characterized in that The connecting sleeve (154) is radially provided with positioning bolt (155), and the lower valve body (13) is fixed on the connecting sleeve (154) through the positioning bolt (155).

7. A combined filter structure according to claim 5, characterized in that The lower valve body (13) not connected with two upper valve bodies (12) in the four lower valve bodies (13) is the standby lower valve body (13), and the standby lower valve body (13) is covered with protective cap (16).

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