Filtering device and filtering equipment

Abstract

The utility model discloses a filtering device and filtering equipment, and relates to the technical field of fuel gas filtering equipment. The filtering device comprises a shell and a filtering assembly, the shell comprises a main shell body, a top cover and a bottom cover, an air inlet is formed in the side, close to the bottom cover, of the main shell body, and an air outlet is formed in the side, close to the top cover, of the main shell body; the filter assembly is contained in the main shell and comprises a plurality of filter parts arranged at intervals, each filter part comprises a filter element and a drainage pipe, the filter elements are arranged between the air inlet and the air outlet, the drainage pipes are communicated with the filter elements, at least part of the drainage pipes are arranged on the sides, close to the bottom cover, of the filter elements, and the drainage pipes are communicated with the filter elements. In the preset direction, a water storage area is formed between the lowest position of the air inlet and the lowest position of the bottom cover, and a port of the drainage pipe is arranged in the water storage area. The filtering device can reduce or even prevent water accumulation in the filter element, the filtering area of the filter element is effectively increased, and the filtering efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of gas filtering equipment, and in particular to a filtering device and filtering equipment. Background Art

[0002] At present, due to the complexity of the components in blast furnace gas, which contains a small amount of dust particles, during the filtering and dust removal process, as the internal and external differential pressure increases, the external pressure of the filter element is much greater than the internal pressure, and the water inside the filter element needs to overcome the internal and external differential pressure before it can be discharged.

[0003] Therefore, if the accumulated water inside the filter element does not reach a certain head height, it cannot flow through the filter material to the outside through osmosis. In addition, the filter element has a small inner diameter, so it is easy for water to accumulate at a high level. The accumulated water cannot pass through the air, reducing the filter element's filtration area and lowering the filtration efficiency. Utility Model Content

[0004] In view of this, the present application provides a filtering device and a filtering equipment, the purpose of which is to solve one of the technical problems in the prior art.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a filtering device, comprising:

[0007] The housing comprises a main shell, a top cover and a bottom cover, wherein an air inlet is provided on a side of the main shell close to the bottom cover, and an air outlet is provided on a side of the main shell close to the top cover;

[0008] A filter assembly is housed in the main shell, the filter assembly includes a plurality of filter elements arranged at intervals, the filter elements include a filter core and a drain pipe, the filter core is arranged between the air inlet and the air outlet, the drain pipe is connected to the filter core, and is at least partially arranged on a side of the filter core close to the bottom cover, in a preset direction, a water storage area is formed between the lowest point of the air inlet and the lowest point of the bottom cover, and the port of the drain pipe is arranged in the water storage area.

[0009] In one embodiment of the first aspect, the filter element and the drain pipe both extend along the preset direction, one end of the drain pipe is connected to the filter element, and the other end is connected to the water storage area.

[0010] In one embodiment of the first aspect, in the preset direction, the water storage area has a minimum water level and a maximum water level, the maximum water level is flush with the lowest point of the air inlet, the minimum water level is higher than the drain pipe away from the filter element port, and there is a height difference D between the minimum water level and the drain pipe away from the filter element port, satisfying: D ≥ 15 cm.

[0011] In one embodiment of the first aspect, the end of the drain pipe away from the filter element is spaced apart from the bottom cover.

[0012] In one embodiment of the first aspect, the filter device further includes a water level control assembly, wherein the water level control assembly is disposed outside the housing, and the water level control assembly includes:

[0013] A water level monitoring component, the water level monitoring component is used to detect the water level in the water storage area;

[0014] a water replenishing member, the water replenishing member being provided on a side of the main shell close to the bottom cover and being in communication with the water storage area;

[0015] A water outlet is provided on a side of the bottom cover away from the top cover and is communicated with the water storage area.

[0016] In one embodiment of the first aspect, the water supply component includes a water supply pipeline and a first valve, the water supply pipeline is connected to the water storage area, and the first valve is arranged on the water supply pipeline.

[0017] In one embodiment of the first aspect, the water outlet component includes a water outlet pipeline and a second valve, the water outlet pipeline is connected to the water storage area, and the second valve is provided on the water outlet pipeline.

[0018] In one embodiment of the first aspect, the water outlet pipe is provided with a sewage outlet.

[0019] In one embodiment of the first aspect, the filter device further includes a fixing assembly, wherein the fixing assembly is disposed in the housing, and the fixing assembly includes:

[0020] a first fixing member connected to the inner wall of the housing and disposed on a side of the filter element close to the top cover, the filter element being connected to the first fixing member; and / or

[0021] A second fixing member is connected to the inner wall of the shell and is arranged on a side of the filter element away from the top cover. The drain pipe is connected to the second fixing member.

[0022] In a second aspect, an embodiment of the present application further provides a filtering device, comprising the filtering device in any of the above embodiments.

[0023] Compared with the prior art, the present application has the following beneficial effects: the present application proposes a filter device, comprising a housing and a filter assembly, the housing comprising a main housing, a top cover, and a bottom cover, the main housing having an air inlet on a side close to the bottom cover, and an air outlet on a side close to the top cover; the filter assembly is accommodated in the main housing, the filter assembly comprising a plurality of filter elements arranged at intervals, the filter elements comprising a filter element and a drain pipe, the filter element being arranged between the air inlet and the air outlet, and being arranged on a movement path of the gas to fully filter the gas;

[0024] The drain pipe is connected to the filter element and is at least partially arranged on a side of the filter element close to the bottom cover. In a preset direction, a water storage area is formed between the lowest point of the air inlet and the lowest point of the bottom cover. The port of the drain pipe is arranged in the water storage area, so that the condensed water inside the filter element flows into the drain pipe. The condensed water inside the filter elements of multiple filter elements converges in the water storage area, reducing or even preventing water accumulation inside the filter element, improving the filtration efficiency, and improving the filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 One of the structural schematic diagrams of the filtering device in some embodiments of the present application is shown;

[0027] Figure 2 The second structural diagram of the filtering device in some embodiments of the present application is shown;

[0028] Figure 3 The third structural diagram of the filtering device in some embodiments of the present application is shown;

[0029] Figure 4 A schematic cross-sectional structure diagram of a filtering device in some embodiments of the present application is shown.

[0030] Description of main component symbols: 100-filter device; D1-preset direction;

[0031] 110-housing; 111-main housing; 112-top cover; 113-bottom cover; 114-supporting feet; 1111-air inlet; 1112-air outlet; 1113-window; 115-water storage area;

[0032] 120-filter assembly; 121-filter element; 1211-filter element; 1212-drain pipe; L1-minimum water level; L2-maximum water level;

[0033] 130-water level control component; 131-water level monitoring component; 132-water supply component; 133-water outlet component; 1321-water supply pipeline; 1322-first valve; 1331-water outlet pipeline; 1332-second valve; 1333-sewage outlet; 141-first fixing component; 142-second fixing component. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0037] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0038] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] The salts and dust contained in the gas (such as blast furnace gas) will condense on the equipment in the gas pipeline, causing blockage of the flame arrester and the intercooler tank, seriously affecting the working stability and power generation efficiency of the generator set.

[0040] like Figure 1 and Figure 4 As shown, an embodiment of the present application provides a filtering device 100, which is mainly used to filter dust and salt substances in gas.

[0041] The filter device 100 includes a housing 110 and a filter assembly 120 .

[0042] The housing 110 includes a main shell 111 , a top cover 112 , a bottom cover 113 and a plurality of supporting legs 114 .

[0043] like Figure 1 As shown, the main housing 111 is in a hollow cylindrical shape with two openings, an upper opening and a lower opening. The top cover 112 seals the upper opening, and the bottom cover 113 seals the lower opening.

[0044] A plurality of support legs 114 are provided on the bottom cover 113 . The support legs 114 are connected to the outer side of the main housing 111 , so that the bottom end of the bottom cover 113 is separated from the ground.

[0045] An air inlet 1111 is defined on one side of the main housing 111 close to the bottom cover 113 , and an air outlet 1112 is defined on one side of the main housing 111 close to the top cover 112 .

[0046] A plurality of viewing windows 1113 are provided on the main shell 111, at least one of which is provided on a side of the main shell 111 close to the top cover 112, for easy observation of the filter assembly 120 and timely maintenance of the filter assembly 120; at least one of which is provided on a side of the main shell 111 close to the bottom cover 113, for easy observation of dirt deposited on the bottom cover 113 and timely discharge of dirt.

[0047] like Figure 4As shown, the filter assembly 120 is housed within the main housing 111. The filter assembly 120 includes a plurality of spaced filter elements 121. The filter elements 121 include a filter element 1211 and a drain pipe 1212. The filter element 1211 is disposed between the air inlet 1111 and the air outlet 1112. It will be appreciated that when gas enters the housing 110 through the air inlet 1111, the gas moves upward and is discharged from the air outlet 1112. The filter element 1211 is disposed along the path of the gas movement, thereby fully filtering the gas.

[0048] It should be understood that the filter element 1211 is tubular.

[0049] In related technologies, the temperature of the gas entering the housing is generally between 40°C and 50°C. When the gas cools, it will precipitate a large amount of water, causing condensation on the outside and inside of the filter element. Because the air pressure outside the filter element is greater than the air pressure inside, the cold water inside the filter element cannot be discharged smoothly, forming a pool of water inside the filter element. When the accumulated water reaches a certain weight, it can be discharged. However, the water-filled part of the filter element cannot perform its filtering function, reducing the filtration effect.

[0050] In order to solve the above problems, the filter device 100 of the present application is provided with a plurality of filter elements 121 arranged at intervals, so that the condensed water outside the filter element 1211 drips naturally under the action of gravity.

[0051] like Figure 4 As shown, the filter device 100 of the present application is further provided with a drain pipe 1212 that communicates with the filter element 1211 and is at least partially located on a side of the filter element 1211 near the bottom cover 113. In a predetermined direction D1, a water storage area 115 is formed between the lowest point of the air inlet and the lowest point of the bottom cover 113. This allows condensed water within the filter element 1211 to flow into the drain pipe 1212, and condensed water within the filter elements 1211 of the multiple filter elements 121 converges in the water storage area 115, reducing or even preventing water accumulation within the filter element 1211, thereby improving filtration efficiency and the filtration effect.

[0052] By arranging the port of the drain pipe 1212 in the water storage area 115 , gas is prevented from entering the drain pipe 1212 , and a water seal is formed at the bottom of the housing 110 for the gas.

[0053] It should be noted that the preset direction D1 is the height direction of the main housing 111. Figure 1 As shown, the preset direction D1 is Figure 1 The up and down directions in .

[0054] In some embodiments, as Figure 4 As shown, the filter element 1211 and the drain pipe 1212 both extend along a preset direction D1, so that the gas and the filter element 1211 can fully contact each other, thereby improving the filtering efficiency.

[0055] One end of the drain pipe 1212 is connected to the bottom of the filter element 1211, and the other end is connected to the water storage area 115. In this way, the structure of the drain pipe 1212 can be simplified, the length of the drain pipe 1212 can be shortened, and the cost can be reduced.

[0056] In some embodiments, as Figure 4 As shown, in the preset direction D1 , the water storage area 115 has a lowest water level L1 and a highest water level L2 , and the highest water level L2 is flush with the lowest point of the air inlet 1111 , preventing water from overflowing from the air inlet 1111 .

[0057] The lowest water level L1 is higher than the port of drain pipe 1212 away from filter element 1211. A height difference D exists between the lowest water level L1 and the port of drain pipe 1212 away from filter element 1211, satisfying the requirement that D ≥ 15 cm. This prevents gas from entering drain pipe 1212, forms a water seal against the gas at the bottom of housing 110, increases the total amount of water stored in water storage area 115, and reduces the frequency of drainage operations.

[0058] In some embodiments, as Figure 4 As shown, the end of the drain pipe 1212 away from the filter element 1211 is spaced apart from the bottom cover 113, so that the water in the drain pipe 1212 can flow more smoothly into the water storage area 115, avoiding clogging of the drain pipe 1212.

[0059] In some embodiments, as Figures 1 to 3 As shown, the filter device 100 further includes a water level control assembly 130 . The water level control assembly 130 is disposed outside the housing 110 and is used to control the water level of the water storage area 115 .

[0060] The water level control assembly 130 includes a water level monitoring component 131 , a water replenishing component 132 and a water outlet component 133 .

[0061] The water level monitoring component 131 is used to detect the real-time water level in the water storage area 115 .

[0062] Exemplarily, the water level monitoring component 131 adopts a magnetic flap level gauge.

[0063] A magnetic flap level gauge typically consists of a float and a display panel. The float has a permanent magnet inside. The display panel is mounted with several small magnetic flaps (also called "magnetic flaps"). These flaps rotate, with one side displaying red (or other colors) and the other white (or other colors).

[0064] As the liquid level rises, the float moves with it. Due to buoyancy, the float rises and falls with the changing liquid level. A magnet inside the float, through the non-magnetic shell, affects the magnetic flap on the display panel. When the liquid level reaches a certain point, the magnet inside the float attracts and rotates the adjacent magnetic flap, causing one side (usually the red side) to face outward, indicating the liquid level.

[0065] The water replenishing member 132 is disposed on a side of the main shell 111 close to the bottom cover 113 and is connected to the water storage area 115 . The water replenishing member 132 is used to inject water into the water storage area 115 to increase the water level in the water storage area 115 .

[0066] The water outlet 133 is disposed on a side of the bottom cover 113 away from the top cover 112 and is connected to the water storage area 115 . The water outlet 133 is used to discharge water in the water storage area 115 and lower the water level in the water storage area 115 .

[0067] In some embodiments, as Figures 1 to 3 As shown, the water replenishing component 132 includes a water replenishing pipeline 1321 and a first valve 1322 . The water replenishing pipeline 1321 is in communication with the water storage area 115 , and the first valve 1322 is provided on the water replenishing pipeline 1321 .

[0068] In the preset direction D1 , the interface of the water supply pipeline 1321 is set on the main housing 111 and is located between the bottom end of the filter element 1211 and the highest water level L2 of the water storage area 115 .

[0069] The first valve 1322 adopts a valve combination of "manual valve-electric valve-manual valve" to achieve precise control and flexible switching of the water flow in the water supply pipeline 1321.

[0070] In some embodiments, as Figures 1 to 3 As shown, the water outlet component 133 includes a water outlet pipeline 1331 and a second valve 1332 . The water outlet pipeline 1331 is connected to the water storage area 115 , and the second valve 1332 is electrically connected to the water level monitoring component.

[0071] The interface of the water outlet pipe 1331 is located at the lowest point of the bottom cover 113 to facilitate drainage.

[0072] The second valve 1332 adopts a valve combination of "manual valve-electric valve-manual valve" to achieve precise control and flexible switching of the water flow in the outlet pipe 1331.

[0073] In some embodiments, the water outlet pipe 1331 is provided with a sewage outlet 1333 to facilitate regular discharge of dirt in the water storage area 115.

[0074] In some embodiments, as Figure 4As shown, the filter device 100 further includes a fixing assembly (not shown), which is disposed in the housing 110 and is used to fix each filter element 121 .

[0075] The fixing assembly includes a first fixing member 141 and / or a second fixing member 142 .

[0076] The first fixing member 141 is connected to the inner wall of the housing 110 and is disposed on a side of the filter element 121 close to the top cover 112 . The filter element 1211 is connected to the first fixing member 141 .

[0077] Exemplarily, the first fixing member 141 is a flower plate to fix the top end of each filter element 1211 .

[0078] The flower plate is a porous plate used to support the filter element 1211 to ensure that the filter element 1211 is evenly distributed, while providing a stable support structure to prevent the filter element 1211 from being displaced or damaged during the flow of gas.

[0079] The second fixing member 142 is connected to the inner wall of the outer shell 110 and is arranged on the side of the filter element 121 away from the top cover 112. The drain pipe 1212 is connected to the second fixing member 142, which prevents the filter element 1211 from shaking under the pressure of the gas when the gas is passed in.

[0080] Exemplarily, second fixing member 142 includes a grille plate and a bracket. The grille plate has an opening larger than the outer diameter of drain pipe 1212, allowing drain pipe 1212 to pass through the grille plate. The grille plate separates drain pipes 1212 and also prevents drain pipe 1212 from shaking under the pressure of gas when gas is introduced.

[0081] The grating plate can be made of fiberglass and the supporting material can be made of stainless steel. It can also serve as a platform for people to stand on.

[0082] The use process of the filter device 100 of the present application is as follows:

[0083] If the water level monitoring component 131 does not detect water, the first valve 1322 is opened first to replenish water until the water level in the water storage area 115 reaches the lowest water level L1;

[0084] Then the gas passes through the gas inlet 1111 to perform gas filtering operation;

[0085] During the gas filtering operation, the accumulated water inside the filter element 1211 is continuously drained to the water storage area 115, causing the water level in the water storage area 115 to continuously rise;

[0086] When the water level monitoring component 131 detects that the water level in the water storage area 115 is close to the highest water level L2, the second valve 1332 is opened, and the water in the water storage area 115 flows out, causing the water level in the water storage area 115 to drop to the lowest water level L1, and the second valve 1332 is closed.

[0087] The present application also provides a filtering device, including the filtering device 100 in any of the above embodiments. Therefore, it has all the beneficial effects of the filtering device 100 in any of the above embodiments, which will not be described in detail here.

[0088] Compared with the prior art, the present application modifies the structure of the filter element 121 and adds a drain pipe 1212 to drain the water inside the filter element 1211 to the bottom of the housing 110.

[0089] The present application also reduces the risk of gas leakage by adding a water seal at the bottom of the shell 110.

[0090] The present application also controls the water level in the water storage area 115 by ensuring that the water level exceeds the lower end of the water supply and drainage pipe 1212, using a magnetic flap level gauge, a first valve 1322, and a second valve 1332. When the real-time water level approaches the maximum water level L2, the water in the water storage area 115 is drained. This method allows the condensed water in the filter element 1211 to be continuously drained as quickly as possible, significantly extending the cleaning and replacement cycle of the filter element 1211.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0092] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A filtering device, characterized in that: include: The housing comprises a main shell, a top cover and a bottom cover, wherein an air inlet is provided on a side of the main shell close to the bottom cover, and an air outlet is provided on a side of the main shell close to the top cover; A filter assembly is housed in the main shell, the filter assembly includes a plurality of filter elements arranged at intervals, the filter elements include a filter core and a drain pipe, the filter core is arranged between the air inlet and the air outlet, the drain pipe is connected to the filter core, and is at least partially arranged on a side of the filter core close to the bottom cover, in a preset direction, a water storage area is formed between the lowest point of the air inlet and the lowest point of the bottom cover, and the port of the drain pipe is arranged in the water storage area.

2. The filtering device according to claim 1, characterized in that The filter element and the drain pipe both extend along the preset direction, one end of the drain pipe is connected to the filter element, and the other end is connected to the water storage area.

3. The filtering device according to claim 2, characterized in that In the preset direction, the water storage area has a minimum water level and a maximum water level, the maximum water level is flush with the lowest point of the air inlet, the minimum water level is higher than the drain pipe away from the filter element port, and there is a height difference D between the minimum water level and the drain pipe away from the filter element port, satisfying: D≥15cm.

4. The filtering device according to claim 2, characterized in that The end of the drain pipe away from the filter element is spaced apart from the bottom cover.

5. The filtering device according to claim 2, characterized in that The filter device further includes a water level control component, which is disposed outside the housing and includes: A water level monitoring component, the water level monitoring component is used to detect the water level in the water storage area; a water replenishing member, the water replenishing member being provided on a side of the main shell close to the bottom cover and being in communication with the water storage area; A water outlet is provided on a side of the bottom cover away from the top cover and is communicated with the water storage area.

6. The filtering device according to claim 5, characterized in that The water replenishing component includes a water replenishing pipeline and a first valve. The water replenishing pipeline is connected to the water storage area, and the first valve is arranged on the water replenishing pipeline.

7. The filtering device according to claim 5, characterized in that The water outlet component includes a water outlet pipeline and a second valve. The water outlet pipeline is connected to the water storage area, and the second valve is arranged on the water outlet pipeline.

8. The filtering device according to claim 7, characterized in that The water outlet pipeline is provided with a sewage outlet.

9. The filtering device according to any one of claims 1 to 8, characterized in that The filter device further includes a fixing assembly, which is disposed in the housing and includes: a first fixing member connected to the inner wall of the housing and disposed on a side of the filter element close to the top cover, the filter element being connected to the first fixing member; and / or A second fixing member is connected to the inner wall of the shell and is arranged on a side of the filter element away from the top cover. The drain pipe is connected to the second fixing member.

10. A filtering device, characterized in that: A filter device comprising the filter device according to any one of claims 1 to 9.

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