阅读说明：本技术 一种变孔隙滤池 (Variable-pore filter ) 是由 武亚雄 马慧巧 于 2021-02-26 设计创作，主要内容包括：本发明提供了一种变孔隙滤池。本发明的变孔隙滤池包括过滤池和反洗池,反洗池相邻设置在过滤池的一侧,在过滤池的上方设有进水系统,在过滤池的内部自上向下设有过滤层和承托层,在过滤池的下方自上向下设有反洗进气系统和集水系统,进水系统包括进水口和水平设置的配水槽,在配水槽上沿长度方向均布有多个进水孔,在过滤池与反洗池之间设有堰口,在堰口处设有支架,配水槽的一端固定在过滤池的池壁上并与进水口连通,配水槽的另一端固定在支架上。本发明的变孔隙滤池能够对进水水流进行泄压,并且保证了水流均匀地进入过滤池,对过滤池起到了良好的保护作用,保障了整个变孔隙滤池的过滤效率和稳定运行。(The invention provides a variable pore filter. The variable pore filter comprises a filter tank and a backwashing tank, wherein the backwashing tank is adjacently arranged on one side of the filter tank, a water inlet system is arranged above the filter tank, a filter layer and a bearing layer are arranged in the filter tank from top to bottom, a backwashing air inlet system and a water collecting system are arranged below the filter tank from top to bottom, the water inlet system comprises a water inlet and a horizontally arranged water distribution tank, a plurality of water inlet holes are uniformly distributed in the length direction on the water distribution tank, a weir port is arranged between the filter tank and the backwashing tank, a support is arranged at the weir port, one end of the water distribution tank is fixed on the wall of the filter tank and is communicated with the water inlet, and the other end of the water distribution tank is fixed on the support. The variable-pore filter tank can release the pressure of inlet water flow, ensures that the water flow uniformly enters the filter tank, has good protection effect on the filter tank, and ensures the filtering efficiency and stable operation of the whole variable-pore filter tank.)

1. The utility model provides a become aperture filtering pond, a serial communication port, including filtering ponds and backwash pond, the adjacent one side that sets up at the filtering ponds in backwash pond, top at the filtering ponds is equipped with water inlet system, inside at the filtering ponds is from the top down be equipped with filter layer and support layer, below at the filtering ponds is from the top down be equipped with backwash air intake system and water collecting system, water inlet system includes the water distribution tank that water inlet and level set up, there are a plurality of inlet openings along the length direction equipartition on the water distribution tank, be equipped with the weir mouth between filtering ponds and backwash pond, be equipped with the support in weir mouth department, the one end of water distribution tank is fixed on the pool wall of filtering ponds and is linked together with the water inlet, the other end of water distribution tank is fixed on the support.

2. The variable aperture filter according to claim 1, wherein the filter layer is a quartz sand filter layer formed by mixing coarse quartz sand and fine quartz sand.

3. The variable pore filter according to claim 1, wherein the supporting layer comprises a plurality of layers of pebble layers, and the particle diameters of pebbles in the plurality of layers of pebble layers are gradually reduced from bottom to top.

4. The variable pore filter according to claim 1, wherein the water collecting system comprises a water outlet and a water collecting device communicated with the water outlet, the water collecting device is arranged at the bottom of the bearing layer, and the water outlet is arranged below the water collecting device.

5. The variable aperture filter according to claim 4, wherein the water collecting device comprises a plurality of water collecting branch pipes, the plurality of water collecting branch pipes are horizontally and uniformly distributed on the whole surface of the filter tank, and a plurality of water outlet holes are arranged on each water collecting branch pipe at intervals.

6. The variable aperture filter of claim 1 wherein the backwash air inlet system comprises an air inlet and an air distribution device in communication with the air inlet, the air distribution device being disposed above the support bed and the air inlet being disposed above the air distribution device.

7. A filter chamber as claimed in claim 6 wherein the air distribution means comprises a plurality of inlet manifolds which are evenly distributed across the entire surface of the filter chamber.

8. The variable aperture filter of claim 7 wherein a plurality of air distribution water caps are spaced on each air inlet branch pipe.

9. A variable aperture filter according to claim 1 wherein the water collection system is used simultaneously as a backwash water inlet system.

10. The variable pore filter according to claim 1, wherein electric valves are respectively arranged at the inlet ends of the water inlet system and the backwashing air inlet system, and an adjusting type electric valve is arranged at the outlet end of the water collecting system.

Technical Field

The invention relates to a filter, in particular to a variable-pore filter.

Background

The pore-varying filter is a positive flow deep bed filter designed based on the theory of "same-direction coagulation", and its filtering layer is composed of two kinds of filtering medium (coarse sand and fine sand) with obviously different granularities, in the filtering layer the coarse sand and fine sand are mutually mixed, and the fine sand is basically uniformly distributed on the bed layer of the whole filtering layer. Since the pores formed between the grits are the majority and water with impurities is guided through these pores to the depth of the bed, the filtration takes place not only at the surface of the filter layer but over the entire bed.

At present, the water inlet of the conventional variable-pore filter device usually adopts a duck tongue valve type water inlet mode, the water inlet flow is single, the filter layer is easily damaged in different degrees, the filter effect of the variable-pore filter is poor, the water outlet quality is influenced, the water inlet requirement of a subsequent system is seriously influenced, and the stable operation target of the subsequent system cannot be met.

In view of this, the invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a variable-pore filter which can relieve pressure of inflow water flow, ensure that the water flow uniformly enters a filter tank, play a good role in protecting the filter tank, and ensure the filtering efficiency and stable operation of the whole variable-pore filter.

The invention provides a variable-pore filter pool which comprises a filter pool and a backwashing pool, wherein the backwashing pool is adjacently arranged on one side of the filter pool, a water inlet system is arranged above the filter pool, a filter layer and a bearing layer are arranged in the filter pool from top to bottom, a backwashing air inlet system and a water collecting system are arranged below the filter pool from top to bottom, the water inlet system comprises a water inlet and a horizontally arranged water distribution tank, a plurality of water inlet holes are uniformly distributed in the water distribution tank along the length direction, a weir port is arranged between the filter pool and the backwashing pool, a support is arranged at the weir port, one end of the water distribution tank is fixed on the wall of the filter pool and is communicated with the water inlet, and the other end of the water distribution tank is fixed on the support.

In one embodiment, the filter layer is a quartz sand filter layer formed by mixing coarse quartz sand and fine quartz sand.

In one embodiment, the supporting layer comprises a plurality of pebble layers, and the particle diameters of pebbles in the plurality of pebble layers are reduced from bottom to top layer by layer.

In one embodiment, the water collecting system comprises a water outlet and a water collecting device communicated with the water outlet, the water collecting device is arranged at the bottom of the bearing layer, and the water outlet is arranged below the water collecting device.

Furthermore, water-collecting device includes a plurality of branch pipes that catchments, and a plurality of branch pipes that catchments distribute evenly on the whole pond face of filtering ponds horizontally, are equipped with a plurality of apopores on each branch pipe that catchments at the interval.

In one embodiment, the backwash air intake system includes an air inlet and an air distribution device in communication with the air inlet, the air distribution device being disposed above the support bed and the air inlet being disposed above the air distribution device.

Further, the air distribution device comprises a plurality of air inlet branch pipes which are uniformly distributed on the whole surface of the filter tank in a horizontal manner.

Furthermore, a plurality of air distribution water caps are arranged on each air inlet branch pipe at intervals.

Further, the water collection system is simultaneously used as a backwash water intake system.

Furthermore, electric valves are respectively arranged at the inlet ends of the water inlet system and the backwashing air inlet system, and an adjusting type electric valve is arranged at the outlet end of the water collecting system.

According to the variable pore filter, the water distribution tank is arranged in the water inlet system, a plurality of water inlet holes are uniformly distributed on the water distribution tank, and the water inlet mode ensures that water flow uniformly enters the filter tank; meanwhile, a support is arranged at a weir crest between the filter tank and the backwashing tank and can relieve the pressure of inflow water flow, so that the filter tank is well protected, the filtering efficiency and stable operation of the whole variable-pore filter tank are guaranteed, the effluent quality can meet the inflow requirement of a follow-up system, and the filter tank has good economical efficiency and safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a variable-pore filter according to an embodiment of the present invention.

Description of reference numerals:

1: a water inlet; 2: a water distribution tank; 3: a water inlet hole; 4: a water collection device; 5: a water outlet; 6: an air distribution device; 7: an air inlet; 8: a support layer; 9: a filter layer; 10: a backwashing tank; 11: and (4) a bracket.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1, the variable pore filter of this embodiment, including filtering ponds and backwash pond 10, backwash pond 10 is adjacent to be set up in one side of filtering ponds, be equipped with water inlet system in the top of filtering ponds, inside from the top down of filtering ponds is equipped with filter layer 9 and supporting layer 8, below at the filtering ponds from the top down is equipped with backwash air inlet system and water collecting system, water inlet system includes water inlet 1 and the water distribution tank 2 of level setting, it has a plurality of inlet openings 3 to follow the length direction equipartition on water distribution tank 2, be equipped with the weir mouth between filtering ponds and backwash pond 10, be equipped with support 11 in weir mouth department, the one end of water distribution tank 2 is fixed on the pool wall of filtering ponds and is linked together with water inlet 1, the other end of water distribution tank 2 is fixed on support 11.

In the variable pore filter of the embodiment, the filter layer 9 is mainly used for filtering water to be treated to remove suspended matters and impurities in the water, and the filter layer 9 can be formed by mixing coarse quartz sand and fine quartz sand; wherein, the granularity of the coarse quartz sand can be 2-3mm, and the granularity of the fine quartz sand can be 0.5-1 mm. At this time, countless micro-filter funnels can be formed in the filter layer 9, the large gaps between the coarse quartz sand and the coarse quartz sand form the upper end ports of the micro-filter funnels, and the small gaps between the fine quartz sand included between the coarse quartz sand form the cone bottoms of the micro-filter funnels; when water with impurities passes through the filter layer 9, suspended matters and impurities in the water can be intercepted by the micro filter funnels, so that deep filtration is realized.

The supporting layer 8 is mainly used for supporting the filtering layer 9, and can comprise a plurality of layers of pebble layers, and the particle diameters of pebbles in the layers of pebble layers are reduced from bottom to top layer by layer; in one embodiment, the supporting layer 8 may include four pebble layers arranged from bottom to top, and the particle diameters of the four pebble layers may be 38-42mm, 19-21mm, 13-15mm, and 5-7mm, respectively, which not only provides a good supporting effect for the filter layer 9, but also is beneficial to ensuring the uniformity of water distribution.

The water inlet system is mainly used for leading water to be treated to enter the filter tank; the water inlet system of this embodiment includes water inlet 1 and water distribution tank 2, and water distribution tank 2 sets up on the whole length direction of filtering ponds, and the both ends of water distribution tank 2 are fixed respectively on the pool wall of filtering ponds and the support 11 of weir department between filtering ponds and backwash pond 10, have a plurality of inlet openings 3 along the length direction equipartition on water distribution tank 2. The water inlet system and the water inlet mode of this embodiment can carry out the pressure release to intake rivers on the one hand, and on the other hand can also guarantee that rivers get into the filtering ponds uniformly, has played good guard action to the filtering ponds.

The water collecting system is mainly used for collecting the filtered effluent; specifically, the water collecting system can comprise a water outlet 5 and a water collecting device 4 communicated with the water outlet 5, the water collecting device 4 is arranged at the bottom of the bearing layer 8, the water outlet 5 is arranged below the water collecting device 4, and the water collected by the water collecting device 4 flows out of the filter tank through the water outlet 5.

The specific structure of the water collecting device 4 is not strictly limited, and a conventional water collecting structure in the field can be adopted; for example, the water collecting device 4 may include a plurality of water collecting branch pipes, the plurality of water collecting branch pipes are evenly distributed on the whole surface of the filtering tank, and a plurality of water outlet holes are arranged on each water collecting branch pipe at intervals. In this embodiment, the number and the arrangement mode of the water collecting branch pipes and the water outlet holes can be determined according to design and engineering experience, so that the uniformity of water distribution is ensured.

In the embodiment, the water collecting system can be simultaneously used as a backwashing water inlet system when backwashing is carried out; during backwashing, a water outlet 5 of the water collecting device 4 serves as a backwashing water inlet, backwashing water enters the water collecting device 4 through the backwashing water inlet and then sequentially enters the supporting layer 8 and the filtering layer 9 through the water collecting device 4, after the filtering materials are washed by the backwashing water, filtering materials of different compositions are screened by the hydraulic part, and meanwhile suspended matters adhered to the filtering materials are cleaned and removed.

The backwashing air inlet system can be used for carrying out air washing on the filter material, and can also be connected with a backwashing water inlet system to carry out air-water combined washing, so that coarse quartz sand and fine quartz sand in the filter layer 9 are further uniformly mixed again, suspended matters and impurities in the filter material are removed, the stable operation of the whole system is ensured, the water outlet quality is ensured, and the water outlet quality is good.

Specifically, the backwash air intake system may include an air inlet 7 and an air distribution device 6 in communication with the air inlet 7, the air distribution device 6 being disposed above the support layer 8, the air inlet 7 being disposed above the air distribution device 6; wherein, the air distribution device 6 can comprise a plurality of air inlet branch pipes which are horizontally and uniformly distributed on the whole surface of the filter tank. In particular, a plurality of air distribution water caps can be arranged on each air inlet branch pipe at intervals to ensure uniform air distribution.

In addition, electric valves can be arranged at the inlet ends of the water inlet system and the backwashing air inlet system, and an adjusting type electric valve can be arranged at the outlet end of the water collecting system; as the filtering time increases, the resistance of the filtering layer becomes larger, and the resistance can be adjusted by the electric valve at the moment so as to keep the operation water level of the filtering layer 9 stable.

During specific use, in the initial test run stage of the variable pore filter device (namely before the variable pore filter device is put into production formally), water to be treated enters the variable pore filter from a water inlet 1 of a water inlet system, after the quality of outlet water is detected to be qualified, the outlet water flows to the next system through a water outlet 5 of a water collecting system, and meanwhile, a backwashing system is regularly used for backwashing according to the specifications and engineering practice experience so as to ensure the maximum filtering efficiency of the variable pore filter. After the water is qualified in the trial operation, the variable pore filter device can be put into a normal operation procedure.

The variable pore filter of the embodiment is provided with a water distribution tank 2 in a water inlet system, a plurality of water inlet holes 3 are uniformly distributed on the water distribution tank 2, and the water inlet mode ensures that water flow uniformly enters a filter tank; meanwhile, a support 11 is arranged at a weir crest between the filter tank and the backwashing tank 10, and can release pressure of inflow water flow, so that the filter tank is well protected, the filtering efficiency and stable operation of the whole variable-pore filter tank are guaranteed, and the effluent quality can meet the inflow requirement of a subsequent system. Compared with the conventional variable-pore filter, the variable-pore filter of the embodiment has the advantages of economy, increased safety during debugging and operation, convenience in debugging and production, and good economy and safety.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.