CN108854173B

CN108854173B - Flat turbulent flow alternative type grit chamber

Info

Publication number: CN108854173B
Application number: CN201810680222.0A
Authority: CN
Inventors: 李海强
Original assignee: Individual
Current assignee: Zhong Jingtao
Priority date: 2018-06-27
Filing date: 2018-06-27
Publication date: 2020-10-16
Anticipated expiration: 2038-06-27
Also published as: CN108854173A

Abstract

The invention discloses a flat turbulent flow alternative grit chamber, comprising: the flow distribution pool is divided into n +1 cavities with the same volume, and a V-shaped flow distribution plate is arranged in each cavity; the sand collecting pool is communicated with the flow dividing pool and the sand collecting pool from top to bottom; the backflow pool, its top height is a little higher than outer circulation groove top height, backflow pool upper portion has the backward flow mouth, backflow pool lower extreme downward sloping forms the outfall, outfall intercommunication outfall, a plurality of guide plates are established to interval card about in the backflow pool, guide plate cavity sets up, and a sleeve is established to backflow pool lateral wall cover, and the sleeve lateral wall has the air inlet, and air inlet intercommunication intake pipe, wherein, the highest department of guide plate and backflow pool junction is equipped with the round hole to make the guide plate with the gas chamber intercommunication, a plurality of ventholes are seted up at every guide plate bottom flank interval. The invention has the beneficial effects that the flat turbulence alternately increases the collision friction of the water sand, effectively removes the sand and simultaneously reduces the attachment amount of organic matters on the sand.

Description

Flat turbulent flow alternative type grit chamber

Technical Field

The invention relates to the technical field of sewage treatment equipment. More particularly, the present invention relates to a flat turbulent flow alternating grit chamber.

Background

Suspended matters in the wastewater, which have a density higher than that of water, can be separated by sedimentation under the action of gravity, and the method for removing the suspended matters in the wastewater by the method is called a sedimentation method, and the main removal object of the sedimentation method is precipitable solids with the particle size of more than 10 microns in suspension, namely suspended solids which can be separated from the water within 2 hours of natural sedimentation time. In practical application, the structure that carries out gravity precipitation separation has grit chamber and sedimentation tank two kinds, and the main function of sedimentation tank is the settleable suspended solid in the separation aquatic, including inorganic suspended solid and organic suspended solid, if can not effectual grit circumference of getting rid of adheres to the organic matter, and makes the organic matter subside along with the grit, leads to easily that the aggregate takes place the taste that the stink is difficult for making people accept such as stench, when influencing the environment, increases the degree of difficulty of post processing, and it is the problem that needs to solve at present badly to avoid the organic matter to adhere to when how effectively getting rid of the grit.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

It is still another object of the present invention to provide a flat turbulence alternating grit chamber having the beneficial effects of increasing the collision friction of water with sand alternately, effectively removing sand, and reducing the amount of organic matter adhering to the sand.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a flat turbulent alternating grit chamber, comprising:

the flow dividing tank is in a cuboid shape with a sealed top end and an open bottom end, n partition plates are vertically clamped in the flow dividing tank at intervals along the length direction of the flow dividing tank so as to divide the flow dividing tank into n +1 cavities with equal volumes, a plurality of water flowing holes are formed in the middle of each partition plate at intervals along the depth direction of the flow dividing tank up and down, a V-shaped flow dividing plate is vertically arranged in each cavity, the surface formed by straight lines of the sharp corner ends of the V-shaped flow dividing plates is equally divided into the partition plates and the water flowing holes, the sharp corner end and the open end of each flow dividing plate are not abutted against the inner side wall of the cavity in which the flow dividing plate is arranged, a water inlet is arranged at the upper part of one side, close to the sharp corner end of the V-shaped flow dividing plate, of one cavity at the end part, the water inlet is connected with a water inlet pipe, an overflow port is, the water outlet is connected with a water outlet pipe, and the height of the water outlet is lower than that of the overflow port;

the sand collecting pool is in an inverted quadrangular frustum pyramid shape with an opening at the top end, the top end of the sand collecting pool is fixedly connected with the bottom end of the flow dividing pool in the circumferential direction to be integrally formed, and the flow dividing pool and the sand collecting pool are communicated from top to bottom;

the backflow pool is a cylindrical barrel, the top end of the backflow pool is slightly higher than the top end of the flow dividing pool, the upper part of the backflow pool is provided with a backflow port, the lower end of the backflow pool is inclined downwards to form a flow outlet, the flow outlet is communicated with a flow outlet pipe, a plurality of flow deflectors which are inclined downwards are clamped in the backflow pool at intervals from top to bottom below the backflow port to form an S-shaped water flow passage from top to bottom, the flow deflectors are arranged in a hollow manner, a sleeve is hermetically sleeved between the lower end of the backflow port and the bottom end of the backflow pool barrel on the outer side wall of the backflow pool, an air accommodating cavity is formed between the inner side wall of the sleeve and the outer side wall of the backflow pool, the side wall of the sleeve is provided with an air inlet, the air inlet is communicated with an air inlet pipe, wherein a round hole is formed at the highest, a plurality of air outlet holes are formed in the bottom side surface of each guide plate at intervals;

the top end of the partition plate and the V-shaped splitter plate are in sealing butt joint with the top end of the splitter tank;

the water outlet pipe is arranged in a non-inclined upward manner, and the free end of the water outlet pipe is communicated with the reflux port;

the free end of the outflow pipe is communicated with the water inlet pipe, and the water pump is arranged on the water inlet pipe between the outflow pipe and the water inlet.

Preferably, the water flowing hole is in a horn shape with the caliber gradually reduced along the running direction of water.

Preferably, the angle between the extension surface of the surface of one plate body of each V-shaped splitter plate and the inner side wall of the splitter tank is 45 degrees.

Preferably, the round hole is located one side level intercommunication air duct in the guide plate, the coaxial intercommunication of air duct free end is provided with coniform leather cup, the leather cup top has an gas pocket, and when leather cup and air duct intercommunication department atmospheric pressure were greater than leather cup lateral surface atmospheric pressure, the gas pocket was opened, and when leather cup and air duct intercommunication department atmospheric pressure were less than leather cup lateral surface atmospheric pressure, the gas pocket was closed.

Preferably, each air outlet hole on each guide plate is positioned on the outer side of the guide plate and is communicated with a horn-shaped rubber sleeve;

further comprising: the air guide plate comprises a plurality of air outlet holes, a plurality of opening and closing components and a plurality of air outlet holes, wherein each opening and closing component comprises a floating ball positioned on the outer side of the air guide plate, a guide rod fixedly connected with the outer side wall of the floating ball and penetrating through the air outlet hole, and a stop rod fixedly connected with the free end of the guide rod and positioned in the air guide plate, the diameter of the floating ball is smaller than the diameter of the lowest end of the rubber sleeve and larger than the diameter of the air outlet hole, when the guide rod is vertically arranged, the stop rod is parallel to the air guide plate, the buoyancy of the floating ball in water is larger than the gravity of the floating ball, and the buoyancy of the floating ball in water is smaller than the gravity of the.

Preferably, the lower end of the bottom side of each guide plate is arranged obliquely upwards, and the inclined angle is positioned at the end part of the air outlet hole at the bottommost end.

The invention at least comprises the following beneficial effects:

firstly, sewage to be treated enters a diversion pool, is impacted at a sharp corner end of a V-shaped diversion plate to carry out diversion in the left and right directions, and is beneficial to removing organic matters wrapped outside sand in the impacting process, the diverted sewage passes through a gap between the end part of the V-shaped diversion plate and the side wall of a cavity to reduce the flowing section of the sewage, the sewage flows from advection to turbulence, the collision impact force of the sand in the sewage is increased, the separation of the organic matters and the sand is increased, the sewage flows into the opening end of the V-shaped diversion plate after flowing through the gap, the water flow speed is reduced rapidly, the sand separated from the organic matters is convenient to settle, meanwhile, the sewage on two sides of the V-shaped diversion plate flows relatively, collides at the opening end again, the collision impact force of the sand in the sewage is increased again, the separation of the organic matters and the sand is increased, and then the sewage enters a next, The processes of turbulent flow and impact sedimentation effectively increase the removal of the organic substances in the circumferential direction of the sand by the whole device, avoid excessive sedimentation of the sand without removing the coated organic substances and reduce the secondary backflow of the sand with the coated organic substances removed;

secondly, the returned sewage entering the return tank through the water outlet passes through the multilayer guide plates, air enters the air containing cavity through the air inlet, the air entering the air containing cavity moves upwards in an S shape through gaps among the guide plates under the action of the air, and is fully contacted with the water flow moving downwards in the S shape, so that the water flow is fully contacted with the air, the oxygen containing amount of the returned sewage is improved, the high-oxygen containing amount returned sewage enters the diversion tank, solid-gas and gas-liquid suspended matters are formed in the collision process of the sewage in the diversion tank, the removal of organic matters wrapped circumferentially by the sand can be accelerated, meanwhile, the water flow impacts the guide plates downwards, the friction force between the sand and the guide plates is increased, and the organic matters wrapped circumferentially by the sand are further effectively;

third, air duct and coniform leather cup set up and effectively avoid the water to get into the guide plate through the venthole, and then get into the appearance air cavity through guide plate, round hole, strengthen the life of whole device, and horn shape rubber sleeve, floater cooperation coniform leather cup dual protection appearance air cavity avoid the influence that rivers flow backward.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic structural diagram of a flat turbulence alternating grit chamber according to one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a reflux pool according to one embodiment of the present invention;

fig. 3 is an enlarged structural diagram of a in fig. 2 according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 3, the present invention provides a flat turbulent flow alternating grit chamber, comprising:

the diversion pool 1 is a pool dug on the ground, or a built pool higher than the ground, or other realizable modes (partially arranged above the ground and partially arranged underground), and is in a cuboid shape with a sealed top end and an opened bottom end (the sealed top end can be realized by arranging an openable sealing cover), n baffle plates 10 are vertically clamped in the diversion pool 1 at intervals along the length direction of the diversion pool, the baffle plates 10 are perpendicular to the inner side wall of the diversion pool 1 in the length direction to divide the diversion pool 1 into n +1 cavities 11 with equal volumes, a plurality of water flowing holes 12 are vertically arranged in the middle of each baffle plate 10 along the depth direction of the diversion pool 1 at intervals, a V-shaped diversion plate 2 is vertically arranged in each cavity 11, the V-shaped diversion plate 2 can be formed by butting the end parts of two plate bodies, and the surface formed by the straight line of the sharp-corner ends (namely one end of the two plate bodies of the V-shaped diversion plate 2 which are fixedly connected) is equally divided into the baffle plates 10, The sharp-angle end and the open end of each flow distribution plate 2 (namely, the end of two plate bodies of each V-shaped flow distribution plate 2 far away from the sharp-angle end) are not abutted against the inner side wall of the cavity 11 where the flow distribution plate 2 is located, the upper part of one side, close to the sharp-angle end of the V-shaped flow distribution plate 2, of one cavity 11 located at the end part is provided with a water inlet 13, the water inlet 13 is connected with a water inlet pipe 14, the top end of one side, far away from the sharp-angle end of the V-shaped flow distribution plate 2, of one cavity 11 located at the other end part is provided with an overflow port 15, the upper part of the cavity 11 located at the other end part is provided with a water outlet;

the sand collecting pool 3 is in an inverted quadrangular frustum pyramid shape with an opening at the top end, the top end of the sand collecting pool 3 is fixedly connected with the bottom end of the shunting pool 1 in the circumferential direction to be integrally formed and is communicated with the shunting pool 1 and the sand collecting pool 3 from top to bottom, the sand collecting pool 3 is used for depositing sand, the sand deposited in the sand collecting pool 3 can be removed in two conventional modes, the lowest end of the sand collecting pool 3 forms a sand outlet, the sand outlet is connected with a sand suction pump, the sand is accumulated to a certain amount and is started to be sucked out, the bottom of the sand collecting pool 3 is connected with a suction pipe, the suction pipe is connected with the sand suction pump arranged on the plane of the top end of the shunting pool, and the deposited sand is sucked out through the sand suction pump;

the backflow pool 4 is a cylindrical barrel with an opening on the top surface, the top end of the backflow pool 4 is slightly higher than the top end of the flow dividing pool, the upper part of the backflow pool 4 is provided with a backflow port 40, the lower end of the backflow pool 4 is inclined downwards to form a flow outlet 41, the flow outlet 41 is communicated with a flow outlet pipe 42, a plurality of flow deflectors 5 which are inclined downwards are clamped and arranged in the backflow pool 4 at intervals from top to bottom below the backflow port 40, the plurality of flow deflectors 5 form an S-shaped water flow passage from top to bottom, the flow deflectors 5 are arranged in a hollow manner, the outer side wall of the backflow pool 4 is positioned between the lower end of the backflow port 40 and the bottom end of the barrel of the backflow pool 4, a sleeve 50 is hermetically sleeved between the inner side wall of the sleeve 50 and the outer side wall of the backflow pool 4, an air containing cavity 51 is formed between the inner side wall of the sleeve 50, the highest end of the connection part of the guide plate 5 and the reflux pool 4 is provided with a round hole 7 so as to enable the guide plate 5 to be communicated with the air containing cavity 51, and the bottom side surface of each guide plate 5 is provided with a plurality of air outlet holes 54 at intervals;

the top end of the partition plate 10 and the V-shaped splitter plate 2 are in sealing butt joint with the top end of the splitter tank 1;

the water outlet pipe 17 is arranged in a non-inclined upward manner, and the free end of the water outlet pipe is communicated with the return port 40;

the free end of the outflow pipe 42 is communicated with the water inlet pipe 14, and the water pump 6 is arranged on the water inlet pipe 14 between the outflow pipe 42 and the water inlet 13.

In the technical scheme, in the using process, sewage to be settled sequentially enters a cavity 11 close to the end part of a diversion pool 1 through a water inlet pipe 14 and a water inlet 13, is shunted along the left-right direction on the sharp-angled end of a diversion plate 2 impacting the cavity 11, the shunted sewage passes through a seam body formed between the V-shaped diversion plate 2 and the inner wall of the cavity 11, enters the opening end of the V-shaped diversion plate 2 after passing through the seam body, enters the next cavity 11 through a water flowing hole 12 on a partition plate 10, sequentially flows through each cavity 11 to reach a water outlet 16 and an overflow port 15, a water body above the water outlet 16 flows into the next process through the overflow port 15, a water body below the overflow port 15 enters a backflow pool 4 through the water outlet 16, a water body entering the backflow pool 4 sequentially passes through a plurality of layers of diversion plates 5, and sequentially flows downwards along the plurality of layers of diversion plates 5 while, the sewage to be treated enters the diversion pool 1, impacts the sharp corner end of the V-shaped diversion plate 2 to carry out diversion in the left and right directions, is beneficial to removing organic matters wrapped outside the sand in the impacting process, the divided sewage passes through a gap between the end part of the V-shaped diversion plate 2 and the side wall of the cavity 11 to reduce the flowing section of the sewage, the sewage flows from advection to turbulence, the collision impact force of the sand inside the sewage is increased, the separation of the organic matters and the sand is increased, the sewage flows into the opening end of the V-shaped diversion plate 2 after flowing through the gap, the water flow velocity is reduced rapidly, the sand separated from the organic matters is convenient to settle, and simultaneously, the sewage on two sides of the V-shaped diversion plate 2 flows relatively, the sand in the sewage is collided again at the opening end, the collision impact force of the sand in the sewage is increased again, the separation of organic matters and the sand is increased, then the sand enters the next cavity 11 through the water flowing hole 12 on the partition plate 10, and the processes of advection, turbulence and impact settlement of the previous cavity 11 are repeated, so that the removal of the organic matters in the circumferential direction of the sand by the whole device is effectively increased, the excessive settlement of the sand without removing the coated organic matters is avoided, and the secondary backflow of the sand with the coated organic matters removed is reduced; secondly, the backward flow sewage that gets into the backward flow pond 4 through delivery port 16 passes through multilayer guide plate 5, the air gets into and holds air cavity 51 through air inlet 52, the gas that gets into and holds the air cavity is S-shaped upward movement through the gap between guide plate 5 under self-action, with the abundant contact of the rivers of downward S-shaped motion, so that rivers and air fully contact, improve backward flow sewage and hold oxygen content, high oxygen content backward flow sewage gets into the reposition of redundant personnel pond, form solid-gas, gas-liquid suspended solid in the sewage collision in with the reposition of redundant personnel pond, can accelerate the getting rid of grit circumference parcel organic matter, and simultaneously, rivers strike guide plate 5 downwards, increase the frictional force between grit and guide plate 5, further effectively get rid of the organic matter of grit circumference parcel.

In another technical scheme, the water flowing hole 12 is in a horn shape with the caliber gradually reduced along the running direction of the flowing water. By adopting the scheme, the impact force of water flow is further increased, and the impact friction force among sands is increased.

In another technical scheme, an included angle between an extension surface of a surface where one plate body of each V-shaped flow distribution plate 2 is located and the inner side wall of the flow distribution pool 1 is 45 degrees. By adopting the scheme, the water flow entering the opening end of the V-shaped splitter plate 2 after flowing through the gap flows symmetrically, the impact force of the relative water flow at the opening end is increased, and the separation of organic matters on the sand is increased.

In another technical scheme, the round hole 7 is located one side level intercommunication air duct 70 in the guide plate 5, the coaxial intercommunication of air duct 70 free end is provided with coniform leather cup 71, leather cup 71 top has an air vent, and when leather cup 71 and air duct 70 intercommunication department atmospheric pressure were greater than leather cup 71 lateral surface atmospheric pressure, the air vent was opened, and when leather cup 71 and air duct 70 intercommunication department atmospheric pressure were less than leather cup 71 lateral surface atmospheric pressure, the air vent was closed. By adopting the scheme, the arrangement of the air duct 70 and the conical leather cup 71 effectively prevents water from entering the guide plate 5 through the air outlet 54 and then entering the air containing cavity through the guide plate 5 and the round hole 7, and the service life of the whole device is prolonged.

In another technical scheme, each air outlet 54 on each guide plate 5 is positioned at the outer side of the guide plate 5 and is communicated with a horn-shaped rubber sleeve 8;

further comprising: the air guide plate comprises a plurality of opening and closing components 9, the plurality of opening and closing components 9 correspond to a plurality of air outlet holes 54 one by one, each opening and closing component 9 comprises a floating ball 90 positioned on the outer side of the air guide plate 5, a guide rod 91 fixedly connected with the outer side wall of the floating ball 90 and penetrating through the air outlet hole 54, and a blocking rod 92 fixedly connected with the free end of the guide rod 91 and positioned in the air guide plate 5, wherein the diameter of the floating ball 90 is smaller than the diameter of the lowest end of the rubber sleeve 8 and larger than the diameter of the air outlet hole 54, when the guide rod 91 is vertically arranged, the blocking rod 92 is parallel to the air guide plate 5, the buoyancy of the floating ball 90 in water is larger than the gravity of the floating ball 90, and the buoyancy of the floating ball 90 in water is smaller than the gravity of the. By adopting the scheme, the horn-shaped rubber sleeve 8 and the floating ball 90 are matched with the conical leather cup 71 to protect the air containing cavity 51 from being influenced by water flow backward.

In another technical scheme, the lower end of the bottom side surface of each guide plate 5 is arranged obliquely upwards, and the inclined angle is positioned at the end part of the air outlet 54 at the bottommost end. By adopting the scheme, improper operation is effectively eliminated and water entering the guide plate 5 is effectively prevented.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the flat turbulent alternating grit chamber of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. Flat turbulent flow alternating grit chamber, its characterized in that includes:

2. The flat turbulent alternating grit chamber of claim 1 wherein said flow openings are flared with a progressively smaller diameter in the direction of flow.

3. The flat turbulent alternating grit chamber of claim 2 wherein the angle between the extension of the face of one of the plates of each V-shaped splitter plate and the inside wall of said splitter chamber is 45 °.

4. The flat turbulent flow alternative grit chamber as in claim 1, wherein the round hole is located at one side of the guide plate and is horizontally communicated with the air duct, the free end of the air duct is coaxially communicated with a conical leather cup, the top end of the leather cup is provided with an air hole, when the air pressure at the communication part of the leather cup and the air duct is higher than the air pressure at the outer side surface of the leather cup, the air hole is opened, and when the air pressure at the communication part of the leather cup and the air duct is lower than the air pressure at the outer side surface of the leather cup, the air.

5. The flat turbulence alternating grit chamber as in claim 1, wherein each air outlet on each deflector is provided with a trumpet-shaped rubber sleeve which is communicated with the outside of the deflector;

6. The flat turbulent alternating grit chamber of claim 1 wherein the lower end of the bottom side of each baffle is inclined upwardly at the end of the outlet aperture at the lowermost end.