Regulating reservoir

 

(57) Abstract:

The invention relates to the construction of sewer systems and can be used for averaging the costs of domestic and industrial wastewater. The technical result is to increase the efficiency of the removal of sediment from the drop-down regulating reservoir, even excluding periodic sedimentation facilities. Regulating reservoir contains a split tank with feeding pipeline, pipeline emptying, ventilation and drainage trays. Each section of vessel equipped with a crap camera trap undissolved impurities, equipped with piping for periodic resuspension and removal of sediment in the reservoir pumping station, and divided by the length of the wall with the door on the two branches. The first of them the smaller size ranges from 0.2 to 0.3 parts of the total length of the tank, which ensures the formation of the principal amount of sediment and which has a device that provides erosion and sediment removal during emptying of the tank. The second part, acting as a master drive water is the main volume section and has a length of from 0.7 to 0.8 parts of the total length of the entire cutting is m, and between adjacent second branches of 0.1 - 0.3 m higher than the height threshold between the first branches. The bottom of the tank is made in the form of a trapezoid trays of width at bottom = 0.5 - 1.5 m and a slope of the side walls to the tray of 0.2 - 0.3, directed perpendicular to the idler tray reservoir and having a slope to the idler tray from 0.005 to 0.1. Unit load on the camera capture the main mass of undissolved impurities is taken q = 20 - 25 m/m h 4 C.p. f-crystals, 6 ill.

The invention relates to the construction of sewer systems and can be used for averaging the costs of domestic and industrial sewage.

Analog is a regulating reservoir with a Central tray used for stormwater networks [1, page 264]. This tank does not have a special device that provides effective removal of deposited precipitate insoluble impurities. Use for averaging domestic and industrial wastewater leads to rapid silting of the reservoir.

The closest analogue to the claimed invention is a regulating reservoir with a split tank with feeding pipeline, pipeline emptying, ventilation and drainage trays, to the beginning of the education of sediment across large areas of the tank. Flushing system tank is extremely complex and may not be reliable, flush sediment from the trays great lengths jets ineffective, therefore, a regulatory capacity will be periodically will are.

The technical result of the invention is to increase the efficiency of the removal of sediment from the drop-down regulating reservoir, even excluding periodic sedimentation structures.

The technical problem is solved in that the regulating reservoir containing a split tank with feeding pipeline, pipeline emptying, ventilation and drainage trays, each section of vessel equipped with a crap camera trap undissolved impurities, equipped with piping for periodic resuspension and removal of sediment in the reservoir pump station. Each section is also divided by the length of the wall with opening of two branches: the first one is the smaller size ranges from 0.2 to 0.3 parts of the total length of the tank, which ensures the formation of the principal amount of sediment and which has a device that provides erosion and sediment removal during emptying of the tank, and the second part, acting as a master drive in sdeleni between the thresholds, the height of which is equal between adjacent first branches - 0.1 - 0.3 m, and between adjacent second compartments - 0.1 - 0.3 m higher than the height threshold between the first branches. The bottom of the tank is made in the form of a trapezoid trays width of plate B = 0.5 - 1.5 m and a slope of the side walls to the tray of 0.2 - 0.3, directed perpendicular to the idler tray reservoir and having a slope to the idler tray from 0.005 to 0.1. Unit load on the camera capture the main mass of insoluble impurities is taken q0= 20 - 25 m3/m2h

In other words, the proposed construction of a regulating reservoir technical problem is solved by controlling the process of deposition of sediment and sediment, to create special conditions for sediment in those parts of buildings that are equipped with systems or devices that provide effective removal of sediment or wash them with water during the period of evacuation.

The new tank design is composed of at least two sections. Each section has a camera to capture the main mass of undissolved impurities. It precipitate is concentrated in a pyramidal or conical hopper and removed by pipeline under hydrostatic pressure is which is removed by the flow of water, coming from the adjacent section in the initial period of filling of the tank. In the second part, which constitutes the main part of the building, the sediment is almost impossible, because flowing water is not already contained settling the matter.

Regulating reservoir has a simple structure and sedimentation it is excluded, his work is characterized by high reliability.

In Fig. 1 shows a plan regulating reservoir, Fig. 2 - section 1-1 of Fig. 3 - section 2-2 of Fig. 4 - section 3-3 of Fig. 5 - section 4-4 of Fig. 6 - section 5-5.

Regulating reservoir 5, rectangular in plan, divided by the length of the partition, not reaching lateral sides, on two branches. Along the longitudinal axis of each division there are thresholds that divide them into two sections. Sill height 8 in the first part is 0.1 - 0.3 m, and the height of the threshold 10 0.1 - 0.3 meters more than the height threshold 8.

At the beginning of each section is settling chamber 6 made the type of vertical sump (or open hydrocyclones) and intended for the deposition of the main mass of the insoluble impurities from the wastewater.

Cameras can be circular or rectangular in plan with soo the poor camera 6 laid the pipe 11, discharge under hydrostatic pressure from the sediment into the receiving tank of the sewage pumping station 2. The pipes 4 are intended for filing in the upper part of the distribution channel 15 6 cameras regulating reservoir 5 wastewater from the discharge piping 3.

If necessary, the precipitate may vspuchivatsya water through the pipes 14 connected to the line 3 through line 4.

Along the outer sides at the bottom of the regulating reservoir located idler longitudinal trays 7 pits 16. The slope of the trays to the pits ranges from 0.005 to 0.1. The bottom of the regulating reservoir over the entire area is made of ribbed, forming transverse trapezoidal flumes having a bias towards teams (outlet) tray 7, is equal to 0,005 - 0,01. The slope of the side walls of the trays is 0.2 - 0.3. The width of the trays on the bottom is B = 0.5 - 1.5 m, and on top is equal to (3 - 4)Century

Along the outer sides of each section of the regulating tank 5 located teams (idler) trays 7 pits 16. Each pit 16 of the pipe 12 is connected to a gravity fed reservoir 1, the supply of waste water to the sewage pumping station 2. In the upper part of the prefab (outlet) of the tray 7 (200 mm below the Board to regulate obvodyashie collectors 1.

Regulating reservoir works as follows.

When the wastewater flow in gravity network before pumping station above the middle part of the flow of waste water through the pipeline 4 is diverted into settling chamber 5 regulating reservoir 5. After deposition of the main part of the suspended solids, the water flows over the overflow edge of the settling chambers 6 in the first branch of the governing vessel. The sediment from the bottom of the settling chambers 6 through the pipes 11 are regularly removed in the receiving tank of the pumping station 2. If necessary, the precipitate may vspuchivatsya waste water is supplied through pipes 14 in the bottom portion of the settling chambers. During the stay of the wastewater in the first part (before the partition 9) may further clarification of the water and, as a consequence, the accumulation of sediment in this part of the regulating reservoir.

From the first branch of the governing vessel and the waste water through the free spaces between the outer side walls of the regulating reservoir and the ends of the partition 9 is supplied to the second branch of the governing vessel. If during the stay of the wastewater in the separation of the sediment is deposited, it will be so fluid that will wash off in the tray is cited also in the form of transverse trays trapezoidal shape.

The emptying of the reservoir is produced at times of low inflow wastewater pipeline 12 in the inlet to the pumping station gravity sewer.

If necessary, the first part can be washed. In this case, the reservoir is produced through one settling chamber 6 (for example, right). When the level of water in the right section above the edge of the threshold 8 waste water will begin to flow through the threshold of 8 in the first branch of the left section and moving on trapezoidal cross the trays to the longitudinal tray 7, washes them with sediment. The precipitate together with the waste water is removed through the sump 16 and the pipe 12 in the inlet manifold. After completion of the flushing of sediment cover the corresponding pipeline 12 and fill the regulating reservoir through both settling chamber 6.

Wash the precipitate in the first part right section of the produce when applying wastewater to the left settling chamber 6.

Volume regulating tank is recommended to determine the empirical formula:

Wp= 0,42 (Kgen.max- 1) Q,

where Q is the average daily flow rate of wastewater entering the pumping station, m3/day;

Kgen.max- total maximum coefficient unevenly the = B L = qp/ qabout,

where Fto- the total area of the settling chambers, square feet;

B - width regulating reservoir, m;

L is the length of the regulating reservoir, m;

qp- minimum water flow coming into the camera, is

qp= qmaz- qmid;

where qmid= Q/24 - the average consumption per hour;

qmax= qmidKgen.max;

qabout- unit load on the water, which is recommended to be set at 20 to 25 m3/m2h that will ensure the capture of particles with hydraulic size 5 mm/s (for the calculation of the sand trap it equals 70 - 130 m3/m2h).

The length of the first compartment of the tank should be 0.2 - 0.4 parts from the full length of the structure. This length is set of the necessary conditions of deep water clarification in the first part and provide a minimum load on the water per unit length threshold 8 when the flushing of sediment in the first part.

The length of the second part (after wall 3) is 0.6 to 0.8 times the total length of the tank.

The proposed construction of a regulating reservoir for averaging the flow of domestic and industrial wastewater provides long term performance of the structure.

2) the Patent SU 18080048 A3, E 03 F 5/10, 07.04.93.

3) SNiP 2.04.03-85. The sewer. External networks and facilities.

4) Gentle Y. M., Y. Voronov Century, Calico Century. And. Examples of calculations of sewage. - M.: Stroiizdat, 1987.

1. Regulating reservoir containing a split tank with feeding pipeline, pipeline emptying, ventilation and drainage trays, wherein each section of vessel equipped with a crap camera trap undissolved impurities, equipped with piping for periodic resuspension and removal of sediment in the reservoir pumping station.

2. Regulating reservoir under item 1, characterized in that each section divided by the length of the wall with opening of two branches: the first one is smaller with a length of 0.2 - 0.3 part of the total length of the tank, which ensures the formation of the principal amount of sediment and which has a device that provides erosion and sediment removal during emptying of the tank, and the second part, acting as a master drive water is its main volume and has a length of 0.7 - 0.8 part of the total length of the entire tank.

3. Regulating reservoir for p. 2 different ones settled between adjacent second branches of 0.1 - 0.3 m higher than the height threshold between the first branches.

4. Regulating reservoir under item 1, characterized in that the bottom of the tank is made in the form of a trapezoid trays width of plate B = 0.5 - 1.5 m and a slope of the side walls to the tray of 0.2 - 0.3, directed perpendicular to the idler tray reservoir and having a slope to the idler tray 0,005 - 0,1.

5. Regulating reservoir under item 1, characterized in that the unit load on the camera capture the main mass of undissolved impurities is taken q0= 20 - 25 m3/m2PM

 

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