CN2796800Y - Pipeline type pressure back flushing filter - Google Patents

Abstract

The utility model relates to a pressure filter which can flush back. The utility model is composed of a filter pipe shell (1), a filter structure layer (2), connection short pipes (3), (6), a flange block plate (4) and a water baffle (5). A main body pipe shell of the filter is in a pipeline shape, and the filter structure layer is in a multilayer reticular formation which is horizontally or slantways distributed in a plane or wave shape at the position with a largest section area along the axis of the pipe shell (1). A filter layer has large area and small resistance, and can primarily filter suspending grains and sundries. The utility model has simple structure, easy manufacture, small space occupation, and convenient installation and use. The utility model is suitable for the primary filtration of city sewages and the filtration of various other liquids, so the utility model has relatively wide application range.

Description

The duct type pressure bounce-back is washed filter

Affiliated technical field

The utility model relates to a kind of filter plant, is the pipelined filter that can carry out backwash.

Background technology

The main component of municipal sewage is: sanitary sewage, factory effluent, rainwater etc., and summer temp is 18-26 ℃, and winter temperature is 8-16 ℃, and pH value is generally 6-8, and suspension particle foreign material are more.

The quantity of municipal sewage is very huge, and it is very wide to distribute, and wherein contains very many low temperature heat energies, can extract recycling fully, should not be dropped in vain.

Using heat pump technical principle and relevant device thereof, when the user needs heating winter, can extract the low-temperature heat quantity that reclaims wherein municipal sewage as low-temperature heat source, and can convert thereof into and be high-grade heat energy (raising temperature), carry to pass to the user and utilize again; When the user needs refrigeration air-conditioner summer, again can be municipal sewage as low-temperature water source (cooling water source), to release heat wherein, reach the purpose of refrigeration air-conditioner for the user.

Municipal sewage is a kind of utilizable resource of preciousness, and still, the bulky grain suspension foreign material that wherein contain are very harmful, cause the obstruction of equipment such as water pump, heat exchanger, pipeline, valve easily, and source pump can not normally be moved.

At present, the volume of filter plants such as known pressure bounce-back filter wash jar, pressure bounce-back filter wash pond is all bigger, and the filtration aspect is long-pending to compare lessly, and the manufacturing structure complexity is not suitable for the preliminary filtration of municipal sewage.

Summary of the invention

In order to overcome the deficiency of existing filter plant, the utility model provides a kind of main body profile to be similar to pipeline, diameter is little, length is big, promptly can filter under fluid pressure action, removes suspension particle foreign material, can under fluid pressure action, carry out backwash again, suspension particle foreign material are discharged, require it simple in structure, cost is low, interval time between backwash and the filtration is long, and operational management is convenient.

The technical scheme in the invention for solving the technical problem is: the main body cover shape of filter is similar to pipeline, diameter is little, length is big, be provided with the filtration layer along the shell axis direction, filter course is mainly by expanded metal lath, stainless (steel) wire, Web materials such as nylon wire are formed, and it can be the plane network structure, also can be setback shape structure.The filtration layer is along the shell axis direction, the place is horizontally disposed with in the maximum cross-section, also can be obliquely installed at an angle, purpose is that to reach the filter course area bigger as far as possible, and the discharge area is big, fluid resistance is few, filtration and backwash state interval time are long, and the occupation of land space is little, and installation and operational management are more convenient, state that fluid flows in filter and characteristic and the flow regime in pipeline and characteristic are basic identical, and suspension particle foreign material are filtered easily and backwash is discharged.The utility model filter not only is applicable to the preliminary filtration of municipal sewage, also can be used for the preliminary filtration of other fluid.

The beneficial effects of the utility model are, the duct type backwash filter is simple in structure, and it is little to take up an area of the space, fabrication and installation are easy, and the filtration aspect is long-pending big, filters with backwash long blanking time, preliminary good filtration effect can be saved the project construction investment, reduces the operating cost expense.

Duct type pressure bounce-back of the present utility model is washed filter and is applicable to municipal sewage is tentatively filtered, and also can be used for other various filtering flows, and range of application is more extensive.

Description of drawings:

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structure principle chart of the utility model and first embodiment.

Fig. 2 is the structure principle chart of the utility model and second embodiment.

Fig. 3 is the structure principle chart of the utility model and the 3rd embodiment.

Fig. 4 is the structure principle chart of the utility model and the 4th embodiment.

Fig. 5 is the structure principle chart of the utility model and the 5th embodiment.

Among the figure 1, the filter shell, 2, the filtration layer, 3, connect short tube, 4, the flange closure plate, 5, shelves water plate, 6 connect short tubes.

The specific embodiment

Among Fig. 1, sewage is entered in the filter shell (1) by connecting short tube (3) by direction shown in the arrow, after the preliminary filtration of structure sheaf (2), connects short tube (6) by the other end and discharges after filtration.

When carrying out backwash, sewage enters filter by the rightabout shown in the arrow, and the flushing of suspension particle foreign material is discharged.

The shell of filter (1) is a pipe-like, and diameter is little, and length is big, and the diameter of shell and length are mainly determined by the concrete size in its required filter course area and space, institute installation site.

Filtration layer (2) mainly is made up of multilayer Web materials such as expanded metal lath, stainless steel cloth, nylon wires, and requiring has certain rigidity, and is indeformable under the fluid effect, can be the plane network structure, also can be setback shape structure.Require its area bigger, fluid resistance is little, and the filtration layer is the axis direction along shell (1), in the parallel or mounting arrangements that tilts at an angle in place, maximum cross-section.The filter course mesh discharge area of filter or coefficient magnitude are required to determine that mesh is changeable that the number of plies of screen pack is the amount doesn't matter by filter effect.

Filter is manufactured the selection resistant material, perhaps should carry out anti-corrosion treatment.

Filter is answered the horizontal installation of level, as requested also can be vertical or have the certain angle tilting to install and use.Filter should be provided with the cleaning sewage draining exit at its lowest position place after installing.

Filtration layer (2) should design and produce the movable structure into removable extraction, and easy access is cleaned, and also can be fixed, still, should take the measure of easy access and cleaning.

Fig. 2 is that the position and the mode of entery and delivery port is different with the main distinction of Fig. 1.

Fig. 3 is that the position or the mode of entery and delivery port is different with the main distinction of Fig. 1, Fig. 2.

Fig. 4, filtration layer are the setback shape, compare with the plane network structure, can increase the filter course area.

Fig. 5, filtration layer are along shell (1) axis direction tilting mounting arrangements at an angle, and the suspension foreign material are discharged when more helping filtration and backwash.

Claims (2)

1, a kind of duct type pressure bounce-back is washed filter, it is characterized in that by filter shell (1), filtration layer (2), connect short tube (3), (6), flange closure plate (4), shelves water plates (5) are formed, the main body shell (1) of filter is a pipe-like, under fluid pressure action, promptly can filter, can carry out backwash again.

2, wash filter according to claim 1 described pressure bounce-back, it is characterized in that: filtration layer (2) mainly is made up of expanded metal lath, stainless steel cloth, nylon wire, multilayer Web materials, filtration layer (2) is the axis direction along shell (1), parallel or the installation at an angle at the place, maximum cross-section helps preliminary the filtration and the foreign material discharge.

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