CN1660699A - Sewage disposal process system possessing effect of preliminary filtration and dedicated equipment - Google Patents
Sewage disposal process system possessing effect of preliminary filtration and dedicated equipment Download PDFInfo
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- CN1660699A CN1660699A CN 200510006913 CN200510006913A CN1660699A CN 1660699 A CN1660699 A CN 1660699A CN 200510006913 CN200510006913 CN 200510006913 CN 200510006913 A CN200510006913 A CN 200510006913A CN 1660699 A CN1660699 A CN 1660699A
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Abstract
A system with primary filter function for treating sewage is composed of special sewage taking apparatus, special back-flushing filter, special sand removing unit, special vacuum sewage-sucking unit, sewage pump, heat exchange, pipeline and valves. It can prevent the sewage pump, heat exchanger and heat pump from being blocked by particles and suspended substance.
Description
Affiliated technical field
The present invention relates to a kind of water intaking using method and specific equipment of sewage, especially can from sewage pressure drainage pipeline and sewage gravity flow pipe duct, fetch water, and have the process system method and the specific equipment of preliminary filtering function.
Background technology
At present, sewage pressure drainage pipeline and sewage gravity flow pipe ducts such as municipal effluent, production waste, sanitary sewage, generally all be to lead to the sewage pump station, or be sent to the sewage-farm by sewage plant, or pipe special with being sent to sewage discharge, the application problem of fetching water can not take place, do not have this sewage treatment process system and specific equipment with preliminary filtering function yet from sewer line.
Summary of the invention
Waste water quantity such as municipal effluent, production waste, sanitary sewage are very huge, and it is very wide to distribute around our work, life and living environment, and winter temperature can reach more than 10～20 ℃, contains abundant low temperature heat energy, is utilizable precious resources.
Using heat pump technical principle and relevant device thereof, in the winter time, the sewage in municipal effluent pressure drainage pipeline and the sewage gravity flow pipe duct as low-temperature water source (low-temperature heat source), can extract and reclaim a large amount of low temperature heat energies that contain in the sewage, promote its temperature again, flow to the user heating heat supply by the circulation water for heating transmission.In summer, can with heat in heat pump technical principle and the relevant device extraction chamber thereof, be user's refrigeration air-conditioner sewage as cooling water source again, by sewage the heat delivery of extracting is shifted and carries away.Need not build the boiler house winter, need not consume coal, oil, Sweet natural gas, utilizes the sewage just can heating, and need not build cooling tower summer, do not consume water coolant, utilizes sewage just can be user's refrigeration air-conditioner.
Using heat pump technical principle and relevant device thereof, in the process system method that sewage is made full use of as low-temperature water source, a comparison critical technical problems is: contain a large amount of particulate state or suspension foreign material in the sewage, equipment such as blocking pipe, valve and sump pump, interchanger can cause the process system method normally not move easily.Existing sewage disposal device mostly is bulky, and sewage treatment process more complicated, suitability are not strong.At present, be badly in need of a kind of simple in structurely, convenient sewage treatment process systems approach and the specific equipment that is suitable for of operational management make to be installed easily.
The present invention solves the technical scheme that its technical problem takes: at using heat pump technical principle and relevant device thereof, in the process system method of sewage as low-temperature water source, before sewage does not enter heat-exchange equipment or does not directly enter heat pump set, design the process system of a simple preliminary filtration treatment of sewage that is suitable for, adopt specific equipment of the present invention, include sewage intake and filter specific equipment, sewage pressure backwash filter specific equipment, sewage desanding desilt equipment, pipeline vacuumizes diversion equipment.Special-purpose intake equipment of sewage of the present invention and sewage special filtering equipment not only have preliminary filtering function, and, all have backwashing function.
At the interface of sewage pressure drainage pipeline or sewage gravity flow pipe duct, install in the special-purpose intake equipment of sewage of the present invention, all be provided with the sewage water filtration structural sheet, can carry out the preliminary filtration treatment of the first step to extracting the sewage that uses.If two special-purpose intake equipments are installed, when the special-purpose intake equipment of sewage is fetched water filtration treatment therein, can carry out back flushing to another sewage intake equipment, remove the foreign material that are adsorbed on the filtration layer clean.By the by-pass valve control on the process pipeline, the water intaking filtration and the backwash technique process of two intake equipments can be switched mutually, can guarantee the uninterrupted normal continuously operation of sewage treatment process system.
In having the sewage treatment process system of preliminary filtering function, sewage special filtering equipment of the present invention is installed, can carry out second stage filtration treatment to sewage.A complete sewage preliminary treatment process system should be provided with two sewage intake equipments and two sewage filtration equipments.When a sewage filtration equipment carries out second stage filtration treatment therein, can carry out back flushing to an other sewage filtration equipment simultaneously.By the by-pass valve control on the process pipeline, the filtration and the backwash technique process of two sewage special filtering equipment can be switched mutually.The preliminary filtration treatment process system of sewage of the present invention, sewage is being carried out also can select to use the filter plant of other form in the filtration treatment technological process of the second stage, it is simple in structure to require selecteed filter plant to have, it is little to take up an area of the space, and operational management is characteristics easily.When sewage filtration equipment is carried out back flushing, begin messy sewage and should directly be discharged into the downstream part of sewage pressure drainage pipeline or sewage gravity flow pipe duct, back flushing is after after a while, and more peace and quiet sewage is just suitable to enter sewage intake equipment, and it is carried out back flushing.
Sewage intake equipment tentatively filters specific equipment as first step sewage, can remove by filter particulate state bigger in the sewage and suspension foreign material, if it is more peace and quiet through the sewage after the first step filtration treatment, can reach service requirements, the equipment such as pipeline, valve and interchanger, sump pump that can not take place stop up, just second stage filtration treatment process system and special filtering equipment can be no longer be provided with, project construction investment and working cost can be saved.
The sewage intake equipment of installing and using on the sewage pressure drainage pipeline is one of specific equipment of the present invention, it is characterized in that: the similar branch pipe tee connection of this body profile of this equipment, two end interfaces along its major axis rectilinear direction, be connected with pressure sewage drainage pipeline, interface perpendicular to axis direction, be through the preliminary filtering sewage intake pipe joint of the first step, section in the major axis rectilinear direction, be provided with the netted filtering structural sheet, the netted filtering structural sheet mainly is by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift is formed, certain rigidity and intensity are arranged, the reasonable water-based energy of crossing is arranged, the parallel or installation of tilting at an angle along the long axis direction, can be planeform, also can be the setback shape, arc curve shape or circular pipe shape.The size of the flow area of filtration layer, with sewage at the ducted flow velocity of pressure drainage, and the flow velocity of sewage in intake pipe has direct relation, requirement sewage sees through and enters the speed of filtration layer (at filtration layer place, sewage is entered the speed of water intake conduit by the pressure drainage pipeline), should be less than sewage at the ducted flow velocity of pressure drainage, its purpose and effect are, particulate state in the sewage or suspension foreign material are filtered structural sheet to be stopped, and the suction strength in taken water pipe road is adsorbed on the filtration layer, the strength of these absorption foreign material should be less than the impact strength that effluent flow rate had in the pressure drainage pipeline, make the foreign material that stopped that are filtered in the sewage be not easy to be adsorbed on the filtration layer, can in time be impacted and take away by the ducted sewage of pressure drainage, guarantee that the filtration layer is unlikely to be stopped up by foreign material, assurance has enough flow areas and crosses the water-based energy, to the first step of sewage tentatively the work of filtering can proceed down smoothly.
The special-purpose sewage intake equipment of installing and using in sewage gravity flow pipe duct of the present invention has two kinds, a kind of is the squirrel-cage intake equipment with preliminary filtering function, be applicable to the higher place of the water table ratio of sewage in the pipe duct, it can be immersed and carry out the preliminary filtration of the first step in the sewage that flows automatically and extract sewage.Another is water leg and the catch pit formula intake equipment with first step preliminary filtering function, and its wastewater level that is particularly useful for flowing automatically in the pipe duct is superficial, the place that can not install and use the squirrel-cage intake equipment.This water leg and catch pit formula method for fetching water and specific equipment simple in structure, easy to install, water leg can be installed in the bottom of pipe duct, also can be installed in the side of pipe duct, and catch pit can also combine with the inspection chamber of sewage pipe duct, this method for fetching water and specific equipment are applicable to that it is wider to install and use scope among any sewage gravity flow pipe duct.Above-mentioned two kinds are applicable to the special-purpose intake equipment of installing and using in sewage gravity flow pipe duct, its netted filtering structural sheet should have certain rigidity and intensity, have certain flow area and good mistake water-based energy, have corrosion resistance nature and be convenient to cleaning and maintenance management, the design structure characteristics of its netted filtering structural sheet and the requirement of area size, basic identical with intake equipment special-purpose in the sewage pressure drainage pipeline, require sewage under the suction function of sump pump, the speed (in pipe duct enters mouse cage or the flow velocity of water leg and catch pit) that penetrates the filtration layer from pipe duct should be less than the gravity flow speed of sewage pipe duct, foreign material in the sewage can in time be taken away by impact, be unlikely resting on for a long time on the filtration layer, influence it and filter proceeding of work.
It is two of the sewage specific equipment with preliminary filtering function of the present invention that the duct type pressure bounce-back of installing and using in the sewage treatment process system is washed strainer, it is characterized in that: the similar pipe shape of this body profile of this equipment, also be called the duct type pressure bounce-back and wash strainer, wash hay tank difference in shape in pressure bounce-back commonly used at present in order to represent it.Sewage of the present invention tentatively filters specific equipment and existing pressure bounce-back is washed hay tank, pressure bounce-back is washed filtering basin and is compared, have four differences, the one, this body profile difference, the 2nd, the filtering layer structure difference, the 3rd, the position difference that the filtration layer is provided with, the 4th, the calculating of the filtration area of filtration layer and principle of design are different with method.Duct type pressure bounce-back of the present invention is washed strainer, equipment volume is little, installation and operational management are convenient, the filtration layer mainly is the reticulated structure that is made of Web materials single or multiple lifts such as expanded metal lath, Stainless Steel Cloth, nylon wires, have certain rigidity and intensity, good mistake water-based energy, the filtration layer is the axis direction along shell, parallel or be obliquely installed at an angle in the position, maximum cross-section, the area of making every effort to its filtration layer can be the bigger the better.The calculating that its filtration aspect is long-pending, the mistake water-based energy of the flow velocity of main and sewage, flow, filtering layer, the content of particulate state and suspension foreign material in the sewage, factors such as back flushing pitch time have direct relation.In the sewage treatment process system with preliminary filtering function of the present invention, also can install and use filter plants such as existing pressure bounce-back filter wash jar or pressure bounce-back filter wash pond, require it must guarantee the long-term normal operation of sewage treatment process system, guarantee that sewage heat exchange wetting system and heat pump set can normally move for a long time.
The vertical rotating sand separator of installing and using in having the sewage treatment process system of preliminary filtering function is three of a specific equipment of the present invention, it is characterized in that: this body profile of sewage vertical rotating sand separator and principle of work are as existing vertical tornado dust collector substantially, sewage is entered by the tangential direction of sand separator top along the inwall circle, form rotary water current, under action of centrifugal force, sand in the sewage and mud rotate along the fly-ash separator inwall, the sand strip that is provided with on the inwall stops, under action of gravity, be slipped in the sludge bucket of taper gradually downwards, centre in vertical sand separator axis, more peace and quiet sewage is taken away by outlet conduit, make sewage obtain further purifying treatment, satisfy service requirements.
In the sewage treatment process system with preliminary filtering function of the present invention, when in sewage gravity flow pipe duct, fetching water, sewage pump intake pipeline and sewage intake equipment all are to be lower than ground, sometimes can reach about-6 meters,, be full of water pump and pipeline by sewage gravity flow fully if sump pump is located at underground, just need to build separately underground sewage pump plant, investment is big, is not easy to management, and the sewage pump plant accident of pouring water often takes place easily.If require sump pump is located on the ground, sump pump suction port pipeline just need vacuumize diversion.Pipeline of the present invention vacuumizes diversion equipment and just is mounted on the ground, can vacuumize the specific equipment of diversion for sump pump and suction port pipeline, it mainly includes water pump, hydraulic ejector, water storage tank three parts composition, throat at hydraulic ejector nozzle and jet pipe, the current of high-velocity jet can produce negative pressure, sump pump and the ducted air of suction port are extracted out, sewage is attracted up by underground lower.It is simple in structure that this sewer line vacuumizes the diversion specific equipment, operation and convenient management.In the preliminary filtration treatment process system of sewage of the present invention, also can install and use the vacuum pump of finished product typing, get rid of ducted air and diversion, but when installing and using, should note sewage water filtration is handled, prevent equipment such as blocking pipe, valve and vacuum pump.
The invention has the beneficial effects as follows, can carry out preliminary filtration treatment, carry out preliminary filtration treatment applicable to extracting sewage in sewage pressure drainage pipeline and the sewage gravity flow pipe duct to various sewage such as municipal effluent, production waste, sanitary sewage and waste water.At using heat pump technology and relevant device thereof, sewage as low-temperature water source, carry out for the user in the technological process of heating and air conditioner refrigerating, can solve the guardian technique problem of particulate state and the easy blocking pipe of suspension foreign material, valve, sump pump, interchanger or heat pump set equipment in the sewage.Sewage treatment process system of the present invention and specific equipment are simple in structure, and the occupation of land space is little, and operational management is convenient, and is economic and practical, can save construction investment and working cost.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is have the sewage treatment process system architecture principle of preliminary filtering function and the system flowchart (second-stage treatment) of first embodiment of the present invention;
Fig. 2 is have the sewage treatment process system architecture principle of preliminary filtering function and the system flowchart of second embodiment (one-level processing) of the present invention;
Fig. 3 is have the sewage treatment process system architecture principle of preliminary filtering function and the system flowchart (second-stage treatment) of the 3rd embodiment of the present invention;
Fig. 4 is structural principle and the general assembly drawing of special-purpose first embodiment of intake equipment of sewage of the present invention;
Fig. 5 is structural principle and the general assembly drawing of second embodiment of the special-purpose intake equipment of sewage of the present invention;
Fig. 6 is structural principle and the general assembly drawing of the 3rd embodiment of the special-purpose intake equipment of sewage of the present invention;
Fig. 7 is structural principle and the general assembly drawing of the 4th embodiment of the special-purpose intake equipment of sewage of the present invention;
Fig. 8 is structural principle and the general assembly drawing of first embodiment of sewage special pressure backwash filter equipment of the present invention;
Fig. 9 is structural principle and the general assembly drawing of second embodiment of sewage special pressure backwash filter equipment of the present invention;
Figure 10 is the general assembly drawing of sewage vertical rotating sand separator structural principle of the present invention and embodiment;
Figure 11 is the general assembly drawing that sewer line of the present invention vacuumizes diversion equipment structural principle and embodiment.
Among the figure 1, sewage intake equipment, 2, the filtration layer, 3, connect short tube, 4, connect short tube, 5, water eliminator, 6, connect short tube, 7, flange and blind plate, 8, the sewage pressure drainage pipeline, 9, sump pump, 10 interchanger, 11, the sewage desanding device, 12, backwash filter equipment, 13, the sewage water inlet pipe line, 13-1, sewage water outlet pipeline, 14, pipeline vacuumizes diversion equipment, 15, sewage intake equipment, 15-1, the filtration layer of squirrel-cage intake equipment, 16, the water intaking screen casing, 17, the sewage intake pipeline, 18, the sewage inspection chamber, 19, gravity flow sewage pipe duct, 20, the filtration layer, 21, the sewage water leg, 22, the sewage catch pit, 23, duct type sewage pressure backwash filter shell, 24, connect short tube, 25, the filtration layer, 26, water eliminator, 27, vertical rotating sand separator housing, 28, the sand separator sand strip, 29, hydraulic ejector, 30, water storage tank, 31, water pump, 32, vacuumize conduit pipe, 33, overflow spout, 34, water circulating pipe, 35, the blowdown water escape valve.
Embodiment
Among Fig. 1, include 2 sewage intake equipments (1), 2 backwash filter equipment (12), 1 sewage desanding device (11) is that sewage can carry out process system structural principle and the schema that two-stage filtration is handled.
First step filtration treatment is the interface in sewage pressure drainage pipeline (8), (1) 2 of special-purpose sewage intake equipment of the present invention is installed, when a sewage intake equipment filters water intaking therein, can carry out pressure bounce-back to an other sewage intake equipment and wash.By the by-pass valve control on the process pipeline, the water intaking filtration and the back flushing working process of two intake equipments (1) can be switched mutually, can guarantee the uninterrupted operation continuously of process system.
Second stage filtration treatment is to carry out in sewage pressure backwash filter equipment (12), 2 backwash filter equipment (12) are installed between the outlet conduit and sewage desanding device (11) inlet pipeline of sump pump (9), when a backwash filter equipment carries out filtration treatment to sewage therein, other one can be carried out pressure bounce-back simultaneously and washes, and the filtration working routine of two equipment and back flushing working routine can be switched mutually by the by-pass valve control on the process pipeline.Back flushing has just begun following period of time, and the impurity that is rinsed out is many, should directly be discharged into the downstream of sewage pressure drainage pipeline (8), when the sewage of back flushing is more peace and quiet, just can carry out back flushing to sewage intake equipment (1) with it.
Sewage through two-stage filtration is handled enters sewage desanding device (11) again, and foreign material such as sand that the desanding device bottom settles down and mud should in time emit.Water-quality guideline to the sewage handled through desanding should in time detect chemical examination, sewage disposal up to standard qualified after, the heat-exchange equipment of being allowed for access (10) carries out the heat exchange reaction among perhaps directly entering the vaporizer of heat pump set and condenser.Detecting chemical examination work answers emphasis in time to grasp main critical index such as the sewage turbidity of the preliminary filtration treatment of process two-stage, suspended contamination, pH value, in time adjust treatment process process and control back flushing pitch time, reach the standardization and the stdn of the preliminary filtration process process operation of sewage.
Fig. 2 and difference shown in Figure 1 are: Fig. 2 is the process system that has only the one-level filtration treatment, sewage backwash filter equipment (12) is not installed, be applicable to that the ducted sewage of pressure drainage is after the preliminary filtration treatment of the first step through sewage intake equipment (1), sewage is more peace and quiet, relevant index can satisfy service requirements, can not establish second stage filtration treatment in this case.Process system flow process shown in Figure 2 should be can select under reliably guaranteed situation, and, in the actual motion management work, should strengthen especially the sewage after handling is in time detected chemical examination work.
Fig. 3 is have the sewage treatment process system architecture principle of preliminary filtering function and the system flowchart of the 3rd embodiment of the present invention.With the key distinction of Figure 1 and Figure 2 be: process system flow process shown in Figure 3 is applicable in sewage gravity drainage pipe duct and fetches water, the specific equipment that its intake adopted (15) is diverse with the structure of scheming the water intaking specific equipment (1) in the system shown in (1) and the figure (2), in addition, rest part is essentially identical.In process system flow process shown in Figure 3, sump pump (9) should be installed in the heat pump machine room as far as possible, helps unified operational management.When sump pump (9) is located on the ground, the tail pipe of sump pump should be before pump startup excluding air, with pipeline vaccum-pumping equipment (14) sewage in the underground sewage pipe duct is attracted to the inlet of sump pump, and is full of within the pump housing of sump pump (9).Pipeline vaccum-pumping equipment (14) can be selected the vacuum pump of suitable model, also can make special-purpose sewer line vaccum-pumping equipment (mainly including equipment and parts compositions such as water tank, water pump, hydraulic ejector, pipeline and valve) by oneself.
Fig. 4 is structural principle and the general assembly drawing of first embodiment of the special-purpose intake equipment of sewage of the present invention (1), among the figure, connect short tube (3), (6) directly be connected with sewage pressure drainage pipeline (8), connecting short tube (4) directly is connected with the sewage intake pipeline, axis direction along sewage intake equipment (1), the parallel filtration layer (2) that is provided with, filtration layer (2) mainly is by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift is formed, has certain rigidity and intensity, have certain corrosion resistance nature, have good water permeability.The area of filtration layer (2) is to have certain requirements, area can not be too little, the size of its area, main and sewage is at the ducted flow velocity of pressure drainage, and the water withdrawal size of sewage has relation, when the effluent flow rate in the sewage pressure drainage pipeline (8) is a fixed value, the water withdrawal of sewage intake pipeline is big more, then require the area of filtration layer (2) also corresponding big more, its principle is: the sewage that requires to be got penetrates filtration layer (2) at it, speed when entering the sewage intake pipeline by sewage pressure drainage pipeline (8) less than sewage at the ducted flow velocity of pressure drainage, when the particulate state in the sewage or suspension foreign material taken water pipe road because the strength that the suction function of sump pump (9) produces when being adsorbed on the filtration layer, can be in time by because among the pressure drainage pipeline (8), the impact strength that the flow velocity of sewage produced and taking away, the power that is adsorbed of foreign material should be less than by surging force, make these foreign material can not be attracted on the filtration layer in a large number, guarantee that the filtration layer has good water permeability all the time, make intake equipment (1) use that can run well continuously, be unlikely by foreign material a large amount of in the sewage and stop up.
Fig. 5 with the main difference feature of intake equipment (1) shown in Figure 4 is: the filtration layer shape of intake equipment is different, special-purpose intake equipment filtration layer (2) shown in Figure 4 is plane, and the filtration layer (2) of special-purpose intake equipment shown in Figure 5 is the circular pipe shape.Except that the shape difference of filtration layer (2), for the filtration layer that requirement is set is all basic identical.Multiple shapes such as filtration layer (2) also can be selected the setback shape, and is circular-arc can guarantee to increase the area of its filtration layer as far as possible under its rigidity and the requirement of strength prerequisite.
Fig. 6 is structural principle and the general assembly drawing of first embodiment of the special-purpose intake equipment of sewage of the present invention (15), and this water intaking specific equipment also can be described as the squirrel-cage intake equipment.Its principal character is: the squirrel-cage intake equipment with preliminary filtering function, its outside is the filtration layer (15-1) of a shape as the mouse cage shape, inside has water intaking screen casing (16) to believe with sewage intake pipeline (17) to be connected, the filtration layer (15-1) of mouse cage shape, the cross section can be square, rectangle, multiple shape such as circle, filtration layer (15-1) mainly is by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift is formed, has certain rigidity and intensity, has corrosion resistance nature, has good water permeability, be applicable to that wastewater level in the pipe duct (19) is than higher place, it can be immersed in the sewage of gravity flow pipe duct, carry out the preliminary filtration treatment of the first step and extract sewage, the design structure characteristics and the design requirements thereof of its netted filtering structure (15-1), with the special-purpose intake equipment (1) that in the sewage pressure drainage pipeline, is suitable for be essentially identical on principle.The area size of filtration layer (15-1), with the gravity flow speed and the sewage intake amount of sewage in the pipe duct direct relation is arranged, require sewage under the suction function of sump pump, the speed (entering the flow velocity of the unit surface filtering layer of mouse cage the inside from pipe duct) that penetrates and enter filtration layer (15-1) among pipe duct should be less than the gravity flow speed of sewage in pipe duct, make to be filtered in the sewage and be blocked in the outer particulate state of mouse cage shape filtration layer or the suspension foreign material can in time be impacted by mobile sewage in the pipe duct and take away, be unlikely being adsorbed on for a long time on the filtration layer, influence proceeding of its preliminary filtering function.
Fig. 7 is structural principle and the general assembly drawing of second embodiment of the special-purpose intake equipment of sewage of the present invention (15), and this water intaking specific equipment also can be described as water leg and catch pit formula intake equipment.Its principal character is: water leg and catch pit formula intake equipment suitability are strong, use range is wide, can install and use among any gravity flow sewage pipe duct, the water level of sewage is superficial in the pipe duct that is particularly useful for flowing automatically, and installs and uses the inconvenient place of submerged squirrel-cage intake equipment; This water leg and catch pit formula method for fetching water and specific equipment simple in structure, easy to install, water leg can be installed in the bottom of pipe duct, also can be installed in the side of pipe duct, and catch pit can also combine with the sewage inspection chamber of pipe duct; It mainly is by water leg (21), catch pit (22), and filtration layer (20) three parts constitute; The cross section of water leg can be multiple shapes such as semicircle, arc, square, rectangle, and making material can be that brick, stone, concrete, steel plate, plastics etc. are multiple; Its total length and width depend primarily on the diameter or the interior shape size of pipe duct, and sewage gravity flow speed in the pipe duct, and what of sewage intake amount have direct relation with the area of filtration layer (20).Filtration layer (20) mainly is by Web materials such as expanded metal lath, Stainless Steel Cloth, nylon wires, and single or multiple lift is formed, and has certain rigidity and intensity, has corrosion resistance nature, has good water permeability; The total area population size of filtration layer (20) has certain requirement, main and sewage in pipe duct gravity flow speed and the water intaking quantity of sewage relation is arranged, the sewage gravity flow speed that design is tackled in the pipe duct is before carried out actual measurement; The principle that the area design of filtration layer (20) is calculated is: because the suction function of sump pump (9), sewage in water leg and the catch pit is sucked away, form vacuum state, sewage in the pipe duct penetrates filtration layer (20) and enters among water leg (21) and the catch pit (22), a part of particulate state in the sewage or suspension foreign material are filtered and are blocked in outside the filtration layer (20), this part foreign material that are blocked of design requirements should not rest on outside the filtration layer (20), and it should be impacted by gravity flow sewage and take away timely.These foreign material are subjected to the power on the filtration layer of being adsorbed on that produces owing to the sump pump suction function, also be subjected to the surging force that produces of flow velocity effect simultaneously owing to gravity flow sewage, the adsorptive power that is subjected to when foreign material is during less than surging force, just can in time be impacted by gravity flow sewage and take away, just can guarantee the water permeability of filtration layer, its preliminary filtering function that has can be proceeded down; Therefore the calculating principle of the area size of filtration layer (20) is: require sewage penetrate the filtration layer enter the flow velocity of water leg and catch pit by pipe duct should be less than the gravity flow speed of sewage in the pipe duct.
Filtration layer (20) must have certain rigidity and intensity, when safeguarding and clean, can not damage because of being trampled, and should in time carry out examination and maintenance, guarantees safe operation.
Shown in Figure 8, be the structural principle and the embodiment general assembly drawing of sewage special pressure backwash filter equipment of the present invention (12).Main body (23) profile of sewage pressure backwash filter equipment is similar to pipeline, can claim that also it is the shell of duct type sewage pressure backwash filter.Under comparing, its shell diameter is little and length is big, and is along its axis direction, parallel or be tiltedly installed with filtration layer (25) at an angle at the place, maximum cross-section.Filtration layer (25) mainly is made of Web materials such as expanded metal lath, Stainless Steel Cloth, nylon wires, requires to have certain rigidity and intensity, and indeformable damage under the fluid effect also requires it to have corrosion resistance nature simultaneously, has good water permeability.Sewage is entered in the strainer shell (23) by connecting short tube (24) by the direction shown in the arrow, after the preliminary filtration through filtration layer (25), connects short tube (24) by the other end and discharges.When carrying out back flushing, the sewage that is used for back flushing enters strainer by the reverse direction shown in the arrow, with foreign material flushing and the discharge that is filtered out.In the process system flow process, the filter of strainer and backwashing procedures are to be switched mutually by the by-pass valve control on the process pipeline, the pitch time of filtration and back flushing, should in time adjust by the detection result of laboratory test to sewage.
Fig. 9 is second embodiment general assembly drawing of sewage special pressure backwash filter equipment of the present invention (12), with main difference shown in Figure 8 be: position and form that entery and delivery port connects short tube (24) are different, filtration layer (25) that the position is set is different with installation form.Filtration layer and axis direction be the tilting mounting arrangements at an angle, more helping sewage foreign material when filtration or back flushing is discharged from, but, difficulty when strainer is manufactured is wanted corresponding increase, that filtration layer (25) can be is plane, also can be multiple shapes such as setback shape, circular curve shape, it is long-pending to take measures to increase its filtration aspect as far as possible, improves its preliminary filtering ability.
Shown in Figure 10, sewage is to be entered among the vertical rotating sand separator (11) by direction shown in the arrow, in sand separator (11), form rotational flow, mud, sand in the sewage are subjected to action of centrifugal force, along sand separator housing (27) rotation, stopped by sand strip (28), under the self gravitation effect, be slipped to downwards along housing (27) in the bottom bucket of sand separator, in time discharge by spoil disposal sand pipeline and valve.Sewage vertical rotating desanding device of the present invention simple in structure made processing and installed easily, can satisfy the effect that requires of sewage tentatively being got rid of silt particle.Sewage vertical rotating sand separator of the present invention mainly is by sewage water inlet pipe (13), sewage rising pipe (13-1), and sand separator housing (27), sand separator sand strip (28) is formed.The diameter of sand separator housing (27) is main determines that according to the discharge of sewage, the flow velocity that need to handle it is DN1000～800mm that generalized case can be selected diameter for use, and total height is 2000～1600mm.The material of making usefulness can be steel plate, stainless steel plate, aluminium sheet, plastic plate etc., should carry out suitable anti-corrosive treatment.If necessary, can be on housing (27) wall of sand separator or on the sewage water-in and water-out pipeline, set up looking glass, remove the silt particle practical situation and provide convenience for observing sewage.
Shown in Figure 11, be that the sump pump (9) and the sewage upstream line thereof of special use of the present invention vacuumizes diversion equipment (14) example structure principle and general assembly drawing.Pipeline vacuumizes diversion equipment (14), mainly by hydraulic ejector (29), and water storage tank (30), water pump (31), vacuum pumping diversion connecting tube (32), overflow spout (33), water circulating pipe (34), blowdown and emptying valve (35) are formed.Under the effect of water pump (31), water is through pipeline (34), hydraulic ejector (29), water tank (30) constantly circulates, within hydraulic ejector, swiftly flowing water penetrates through nozzle, throat at spray tube produces negative pressure, the discharge of air in the vacuum pumping diversion connecting tube (32) is vacuumized, also form negative pressure, vacuum pumping diversion connecting tube (32) should be connected with the vertex of sump pump (9) and water intake conduit, the emptying of sump pump (9) and the ducted air of sewage intake all can being found time attracts up sewage, for adequate preparation work is carried out in the startup operation of sump pump (9) from lower.
Claims (7)
1, a kind of can be to municipal effluent, sanitary sewage carries out the process system and the specific equipment of preliminary filtration treatment, include: sewage intake equipment (1), sewage intake equipment (15), sewage backwash filter equipment (12), sewage desanding device (11), sewer line vacuumizes diversion equipment (14), sewage pressure drainage pipeline (8), sewage gravity flow pipe duct (19), sump pump (9), interchanger (10), and the process pipe of all size and valve composition, the preliminary filtration treatment of the first step can be carried out to sewage in sewage intake equipment (1) and (15), and pressure bounce-back is washed filter plant (12) can carry out the preliminary filtration treatment in the second stage to sewage, after passing through sewage desanding device (11) again and removing part silt particle in the decontaminated water, sewage can be used as low-temperature water source, enter interchanger (10) or directly enter heat pump set, extract wherein heat or to its release of heat, be user heating heat supply or air conditioner refrigerating.
2, the process system and the specific equipment of the preliminary filtration treatment of sewage according to claim 1, it is characterized in that: the axis direction of sewage intake equipment (1) is provided with filtration layer (2), filtration layer (2) mainly is by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift is formed, has certain rigidity and intensity, has certain corrosion resistance nature, has good water permeability, the filtration layer can be plane, the setback shape, circular-arc, various ways such as circular pipe shape, the flow velocity in the area of filtration layer (2) and the sewer line and the size of water withdrawal are relevant, should be able to guarantee that the foreign material in the sewage are difficult for being adsorbed on the filtration layer, can in time be impacted and take away, guarantee that filtration layer (2) has good water permeability all the time by sewage.
3, the process system and the specific equipment of the preliminary filtration treatment of sewage according to claim 1, it is characterized in that: sewage intake equipment (15) can be described as the squirrel-cage intake equipment, its body exterior is the filtration layer (15-1) of a shape as the mouse cage shape, inside has water intaking screen casing (16) to be connected with sewage intake pipe (17), the cross section of mouse cage shape filtration layer (15-1) can be square, rectangle, multiple shape such as circle, filtration layer (15-1) mainly is by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift is formed, has certain rigidity and intensity, has certain corrosion resistance nature, has good water permeability, it should be immersed in the sewage, extract sewage and carry out first step filtration treatment, the total area (flow area) of squirrel-cage filtration layer (15-1) has direct relation with the flow velocity and the sewage intake population size of sewage in pipe duct, should be able to make to be filtered the foreign material that stops of layer and in time to be impacted and take away, guarantee that filtration layer (15-1) has good water permeability all the time by the sewage in the pipe duct.
4, the process system and the specific equipment of the preliminary filtration treatment of sewage according to claim 1, it is characterized in that: sewage intake equipment (15) also can adopt water leg and catch pit formula intake equipment, it mainly is by water leg (21), catch pit (22), filtration layer (20) three parts are formed, filtration layer (20) mainly is by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift is formed, should have certain rigidity and intensity, has corrosion resistance nature, has good water permeability, the area (flow area) of filtration layer (20) has certain requirement, main relevant with the flow velocity and the sewage intake amount size of sewage in pipe duct, should make and be filtered the various foreign material that stops of layer in the sewage and be difficult for absorption and rest on the filtration layer, can in time be impacted and take away by the sewage in the pipe duct, guarantee that filtration layer (20) has good water permeability all the time, the cross section of water leg can be semicircle, arc, square, multiple shape such as rectangle, can use brick, stone concrete, steel plate, multiple material such as plastics is made, and catch pit can combine with the inspection chamber of sewage pipe duct.
5, the process system and the specific equipment of the preliminary filtration treatment of sewage according to claim 1, it is characterized in that: sewage pressure backwash filter equipment (12), its main body profile is as pipe-like, by shell (23), connect short tube (24), filtration layer (25), water eliminator (26) is formed, filtration layer (25) is mainly by expanded metal lath, Stainless Steel Cloth, Web materials such as nylon wire, single or multiple lift constitutes, have certain rigidity and intensity, have corrosion resistance nature, have good water permeability, can be plane, the setback shape, multiple shapes such as curve arcuation, axis along shell (23) be arranged in parallel, also can be obliquely installed at an angle, also can filter foreign material in other fluid with it.
6, the process system and the specific equipment of the preliminary filtration treatment of sewage according to claim 1, it is characterized in that: vertical sewage desanding device (11), upper part of its main body outer shape is cylindrical tank body, lower part is the sand bin of cone, internal surface at upper part tank body is provided with sand strip (28), sewage water inlet pipe line (13) is connected tangent position place, cylinder tank body top, sewage water outlet pipeline (13-1) is connected cylinder tank body centre, sewage is to enter along cylindric tank body tangent line position direction, form very strong rotary water current, under action of centrifugal force, mud, sand rotates along tank inner surface, is stopped by sand strip, speed is slowed down, under action of gravity, be slipped to downwards along sand strip in the sand bin of cone shape, can regularly or irregularly outwards discharge continuously.
7, the process system and the specific equipment of the preliminary filtration treatment of sewage according to claim 1, it is characterized in that: it mainly is by hydraulic ejector (29) that sump pump and sewage intake pipeline vacuumize diversion equipment (14), water storage tank (30), water pump (31), vacuumize diversion connecting tube (32), overflow spout (33), water circulating pipe (34), blowdown and emptying valve (35) are formed, under the running effect of water pump (31), water is through pipeline (34), hydraulic ejector (29), and water tank (30) ceaselessly circulates, within hydraulic ejector, swiftly flowing current penetrate through nozzle, form negative pressure in spray tube throat, and the air that vacuumizes in the diversion connecting tube (32) is extracted out, vacuumizing diversion connecting tube (32) is connected with the vertex of sump pump (9) and water intake conduit, can all extract the air in sump pump (9) and the water intake conduit out emptying, sewage is attracted to eminence by lower, reach the effect that vacuumizes diversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510006913 CN1660699A (en) | 2005-01-12 | 2005-01-12 | Sewage disposal process system possessing effect of preliminary filtration and dedicated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510006913 CN1660699A (en) | 2005-01-12 | 2005-01-12 | Sewage disposal process system possessing effect of preliminary filtration and dedicated equipment |
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| Publication Number | Publication Date |
|---|---|
| CN1660699A true CN1660699A (en) | 2005-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510006913 Pending CN1660699A (en) | 2005-01-12 | 2005-01-12 | Sewage disposal process system possessing effect of preliminary filtration and dedicated equipment |
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| Country | Link |
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| CN (1) | CN1660699A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424497B (en) * | 2007-10-29 | 2012-01-18 | 文成均 | Recovery plant for waste water heat energy |
| CN104676963A (en) * | 2013-11-26 | 2015-06-03 | 北京中矿博能节能科技有限公司 | Mine original ecological bursting water heat pump unit |
| CN104841187A (en) * | 2015-02-13 | 2015-08-19 | 青岛大学 | Filter device and system of non-clean water coolingcold and heat source |
| CN110451694A (en) * | 2019-09-09 | 2019-11-15 | 清远欣凯环保科技有限公司 | A kind of adhesive producing utilizes processing system with water-ring vacuum pump effluent cycle |
| CN112344596A (en) * | 2020-10-17 | 2021-02-09 | 山东中科能人工环境有限公司 | Water supply device of sewage source heat pump system |
| CN113893593A (en) * | 2021-10-29 | 2022-01-07 | 纪凌哲 | Filter equipment with microfiltration function |
-
2005
- 2005-01-12 CN CN 200510006913 patent/CN1660699A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101424497B (en) * | 2007-10-29 | 2012-01-18 | 文成均 | Recovery plant for waste water heat energy |
| CN104676963A (en) * | 2013-11-26 | 2015-06-03 | 北京中矿博能节能科技有限公司 | Mine original ecological bursting water heat pump unit |
| CN104841187A (en) * | 2015-02-13 | 2015-08-19 | 青岛大学 | Filter device and system of non-clean water coolingcold and heat source |
| CN110451694A (en) * | 2019-09-09 | 2019-11-15 | 清远欣凯环保科技有限公司 | A kind of adhesive producing utilizes processing system with water-ring vacuum pump effluent cycle |
| CN112344596A (en) * | 2020-10-17 | 2021-02-09 | 山东中科能人工环境有限公司 | Water supply device of sewage source heat pump system |
| CN113893593A (en) * | 2021-10-29 | 2022-01-07 | 纪凌哲 | Filter equipment with microfiltration function |
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