RU2650908C1 - Controlled water disposal system - Google Patents

Abstract

FIELD: water drainage systems.

SUBSTANCE: invention refers to wastewater disposal. Controlled system comprises the waste water transport unit, which comprises at least the collector. System is further provided with at least one local wastewater network, which is connected to the collector, the overflow pipeline, which is connected to the local sewerage network and the emergency overflow device, which comprises at least the body, the eyelet that is attached to the body, the rotatable closure that is rigidly connected to the joint plate that is connected to the eyelet in order to perform its rotation, the clamping device with adjustable force, acting on joint plate or on the rotary flap in order to press the rotary flap against the body, ensuring its closure at the water level that is below the minimum value of the earth surface above the local sewerage network. Diameter of the section of the local drainage network between the points of its connection to the overflow pipeline and to the collector is less than the diameter of the section to the point where the overflow pipeline is connected to it as the water moves.

EFFECT: provides an increase in the reliability of the system.

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Description

The invention relates to the field of sanitary engineering and can be used in the discharge and treatment of wastewater in alloy systems for general disposal.

A known drainage system, which includes control tanks, to which the entire flow of rainwater is supplied through a large diameter pipe with simultaneous discharge (emptying) of a part of the flow through a small diameter pipe (see Alekseev MI, Kurgan A.M. Organization of surface discharge (rain or thawed) runoff from urbanized territories: Textbook. - M.: DIA Publishing House; SPb .: SPbGASU. -2000. - 352 p., Fig. 7.6a, 7.13).

The well-known system is characterized by high capital costs, since it uses a separately constructed structure as a regulatory capacity, and does not use the free space of pipelines and wells.

The closest analogue (prototype) to the claimed invention is a megalopolis drainage system (see patent RU No. 2 438 984, C02F 1/00. Megalopolis drainage system / FV Karmazinov, MD Probirsky, Yu.A. Ilyin, BC Ignatchik et al. Priority of June 11, 2010), including: a sludge disposal subsystem containing at least the following successive units: dehydration, heat treatment, ash removal from flue gases, flue gas treatment, as well as backup storage of dehydrated sludge connected to dehydration units and ter processing, transporting ash, loading dehydrated sludge connected to a back-up storage unit for dehydrated sludge and / or to a heat treatment unit, at least one additional sludge utilization subsystem, at least one sludge treatment subsystem, comprising the following successive units: wastewater with sludge extraction, preparation for sludge dehydration, dehydration, storage and unloading of dehydrated sludge, transportation of dehydrated sludge, at least one landfill sludge handling, while the ash transporting units connect the ash removal units of the sludge disposal subsystem, additional / additional sludge disposal subsystems with the sludge landfill, the dehydrated sludge storage and discharge units of the sludge treatment subsystem / the dehydrated sludge transporting unit / units are connected to the dehydrated sludge loading unit of the sludge utilization subsystem, additional / additional sludge utilization subsystems and with the sludge landfill / landfill, at least one emergency transport road that connects the sludge landfill with dehydrated sludge back-up storage units, the dehydrated sludge back-up storage unit for the sludge utilization subsystem - with the additional / additional subsystem / sludge utilization dehydrated sludge loading units, a back-up storage unit dehydrated sludge of additional / additional subsystem / sludge utilization subsystems - with a block for loading dehydrated sludge of the sludge utilization subsystem there are at least two sewage pools and at least one suburb of the metropolis, with the sludge utilization subsystem, additional / additional sludge utilization subsystems and sludge treatment subsystems located in different megalopolis sewer pools, and / or the subsystem / subsystems sludge treatment facilities are located in the suburbs / suburbs of the metropolis. The sludge utilization subsystem, at least one additional sludge utilization subsystem is additionally equipped with wastewater transport units arranged in series in front of the dewatering units, containing inlet collectors and main pumping stations connected to each other with receiving tanks, maximum and minimum water level sensors, and supply pipelines while the supply manifolds are made with the smallest possible slope and are connected to the receiving tanks from label between the maximum and minimum level sensors, wastewater treatment units with sludge extraction, containing a receiving chamber in series, gratings, sand traps, primary sedimentation tanks connected to dewatering units, aeration tank, secondary sedimentation tanks connected to dehydration units to supply excess dewatering units sludge and with an aerotank for feeding returnable activated sludge into it, by gravity centrifugal lines, while the dehydration units and the supply collector are connected by gravity centrifugal lines, between a pool pump station with a supply pipe and a pressure line, while the supply pipe is connected to a feed collector of a sludge utilization subsystem, and a pressure line is connected to a feed collector of an additional sludge utilization subsystem.

Possible development options of the known system when:

1. The inlet pipe is connected to the inlet collector of the additional sludge utilization subsystem, and the pressure line is connected to the inlet collector of the sludge utilization subsystem (development option No. 1).

2. The sludge utilization subsystem, at least one additional sludge utilization subsystem is additionally equipped with internal pumping stations with pressure pipelines, while the dewatering units and internal pumping stations are connected by gravity drainage lines, and the pressure pipelines of the internal pumping stations are connected to receiving chambers.

3. The sludge utilization subsystem, at least one additional sludge utilization subsystem is additionally provided with at least one gravity collector of the internal drainage system, at least one gravity collector of the internal drainage system is connected to the internal pump station.

4. Sludge utilization subsystem, at least one additional sludge utilization subsystem is additionally equipped with district sewage pumping stations with pressure collectors, while pressure collectors are connected to the supply collectors.

5. Pressure manifolds are connected to receiving chambers.

7. Pressure manifolds are connected to internal pumping stations.

8. Pressure manifolds are connected to gravity lines of the centrate.

9. Pressure collectors are connected to at least one gravity collector of the internal drainage system.

The disadvantages of this system are the low reliability indicators of the discharge of the drain outside the village, because High probability of flooding the territory of the metropolis, because:

- during periods of heavy or over-calculated rains, when the capacity of the supplying collectors is less than the flow rate of the incoming flow, filling of their free volume and the release of wastewater to the surface within the metropolis can occur;

- in case of clogging or accident at the sections of the supplying collectors, when drains from subscribers located above these sections, fully or partially through the wells, rise to the surface.

The objective of the present invention is to increase the reliability of the system.

The problem is solved in that the known system, including a wastewater transport unit containing at least a collector, in accordance with the present invention is further provided with:

one local drainage network connected to the collector,

an overflow pipe connected to a local drainage network and an emergency overflow device, comprising at least a housing attached to an eye, a rotary shutter rigidly connected to the scarf, which is rotatably connected to the eye, and a pressure-controlled device with adjustable force on a kerchief or rotary flap to press the rotary flap to the body, providing closing of the flap at a water level below the minimum value of the earth’s surface above the locally and the drainage network, in this case, the diameter of the section of the local drainage network between the points of attachment of the overflow pipeline and the collector to it is less than the diameter of the section to the point of attachment of the overflow pipe to it along the water.

There is a development option when the clamping device with an adjustable force is made in the form of a variable-mass barrier load attached to a scarf or a rotary slam.

Compared with the prototype, the proposed system has the following distinctive features:

1. Additional supply of the system with a local drainage network connected to the collector (It is known);

2. Additional supply of the system with an overflow pipeline (known);

3. Connection of the overflow pipeline to the local drainage network (Known);

4. Connection of the overflow pipeline to the emergency overflow device (Known);

5. The implementation of the emergency overflow device containing at least a housing attached to the eye of the eye, a rotary flap, rigidly connected to the scarf, which is connected to the eye with the possibility of rotation, the clamping device with adjustable effort (Not known);

6. The implementation of the clamping device with adjustable force acting on the scarf or the rotary flap to press the rotary flap to the housing and ensuring its closure at a water level below the minimum value of the earth's surface above the local drainage network;

7. The diameter of the section of the local drainage network between the points of attachment of the overflow pipe and the collector to it is less than the diameter of the section to the point of attachment of the overflow pipe to it along the water,

8. The implementation of the clamping device with adjustable force in the form of a barrier load with variable weight attached to a scarf or rotary slam (It is not known).

According to the information available to the authors, the distinguishing features No. 1-4 in the technical literature are known, and the rest are not. However, their combined use in the inventive system will allow to obtain a positive effect and super-effect.

The positive effect is that environmental safety indicators increase, as the probability of flooding the territory of the metropolis is reduced, because during periods of heavy or over-calculated rains, when the throughput capacity of the local drainage network section between the points of attachment of the overflow pipeline and collector to it will be less than the flow rate of the incoming flow, as well as during blockage or accident on the sections of the local network free volume will occur only until the water level is below the minimum value of the earth's surface above the local drainage network, i.e. before water comes to the surface. During this period of time, the swing shut will be closed. And when the water level rises above the minimum value of the earth's surface above the local drainage network, i.e. the water rises to the surface of the earth, the rotary flap opens and the wastewater is organized into places less hazardous to the environment, or into the regulating tank. As a result, wastewater will not reach the surface within the metropolis (due to the presence of hallmarks 1-7).

The super-effect is that the required level of reliability indicators can be achieved while improving environmental safety indicators. This is achieved by:

- the use of additional free regulatory volume of the local drainage network (due to the presence of distinguishing features No. 1-6);

- regulation of the opening level of the rotary flap of the emergency overflow device (due to the presence of distinctive features No. 5 - 8).

As a result, wastewater discharges through an overflow pipeline will be minimized, since the rotary flap will only open in exceptional cases when the wastewater threatens to enter the metropolis.

Thus, the inventive managed wastewater system meets the criterion of "inventive step".

The system proposed by the authors is structurally different from the prototype.

In Fig.1 shows an embodiment of the General technological scheme of the proposed managed wastewater system, Fig.2 is a profile aB shown in Fig. 1 of the system, in FIG. 3 - embodiment of the emergency overflow device.

The general technological scheme of the proposed system includes (see figures 1, 2):

- a wastewater transporting unit 1 comprising a collector 2 and at least one local drainage network 3 connected to a collector 2;

- overflow pipe 4 connected to the local drainage network 3 and emergency overflow device 5.

The emergency overflow device 5 (see Fig. 3) contains:

- housing 6 connected to the overflow pipe 4;

- an eye 7 attached to the body 6;

- a rotary flap 8, rigidly connected to the scarf 9, which is connected with the eye 7 with the possibility of rotation;

- a clamping device with adjustable force acting on the scarf 9 or rotary flap 8 to press the rotary flap 8 against the housing 6, made in the form of (according to a development option) a variable-weight barrier load 10 attached to the scarf 9 or rotary flap 8, providing closure rotary flap 8 at a water level below the minimum value of the earth's surface above the local drainage network 3. In FIG. 3 shows an embodiment when the variable weight barrier load 10 is attached to the scarf 9. The present invention does not exclude the possibility of a clamping device with adjustable force of other structures other than the barrier load. For example, devices with a hydraulic drive.

The present invention does not exclude the presence of additional elements, for example, a saddle 11, which is integral with the body 6, and a sealing element 12 connected to the rotary shutter 8. Together they ensure the tightness of the emergency overflow device 5 when the rotary shutter 8 is closed.

In addition, a distinctive feature of this controllable drainage system is that the diameter of section 13 of the local drainage network 3 between the points of attachment of the overflow pipe 4 and collector 2 is less than the diameter of section 14 to the point of attachment of the overflow pipe 4 to it along the water.

The optimal drainage system works as follows.

Wastewater from the drainage network 3 enters the collector 2, and from it is discharged outside the settlement (not shown in Figs. 1 and 2). In trouble-free periods of operation and in dry weather, when the influx of wastewater entering the local drainage network 3 and collector 2 is less than their capacity, the drainage system operates in the calculated mode. In this case, the barrier weight 10 with a variable mass (one of the options of the clamping device with adjustable force) connected to the scarf 9 or rotary flap 8 acts on the scarf 9 or rotary flap 8 to press the rotary flap 8 to the body 6 (or saddle 11). As a result, all wastewater is discharged outside the community without wastewater through an overflow pipe 4.

In periods of heavy or over-calculated rains, when the throughput of section 13 of the local drainage network 3 will be less than the flow rate of the incoming flow, filling of its free volume will begin with a rise in the water level. With its further increase, until the water level is lower than the minimum value of the earth's surface above the local drainage network 3, the rotary shutter 8 will be closed under the influence of a clamping device with adjustable force. And when the water level rises above the minimum value of the earth's surface above the local drainage network 3, i.e. will be above the surface of the earth, the rotary flap 8 will open, and the wastewater will be diverted in an organized manner to places less hazardous to the environment, or to the regulating tank. As a result, there will be no exit to the surface of wastewater within the metropolis. In this way, water disposal will be provided at the lowest possible volume of wastewater discharge through an overflow pipe 4.

The present invention allows various options for determining the mass of the barrier load 10 (special case) or the impact force of the clamping device with adjustable force (general case), for example:

- an experimental option, when the local network 3 is filled during over-calculated rain or by creating artificial blockage to the maximum possible level, when water does not pour out of it to the surface. During this period, the minimum weight of the load 10 or the force of the pressing device with an adjustable force is selected to ensure that the rotary flap 8 is held in the closed position;

- a calculation option, from the experimental one, characterized in that the required mass of the load 10 or the efforts of the clamping device with adjustable force are determined on the hydraulic model.

Thus, the proposed controllable drainage system is characterized by industrial applicability.

Claims (2)

1. Managed drainage system, including a wastewater transport unit containing at least a collector, characterized in that the system is additionally equipped with at least one local drainage network connected to the collector, an overflow pipe connected to the local drainage network and emergency overflow device, comprising at least a housing attached to an eye of the housing, a rotary slider rigidly connected to the scarf, which is connected to the eye with the ability to rotate clamping device with adjustable force acting on the scarf or pivoting flap to press the pivoting flap to the housing, ensuring its closure at a water level below the minimum ground surface above the local drainage network, while the diameter of the section of the local drainage network between the points of connection to the overflow the pipeline and the collector are smaller than the diameter of the section to the point of attachment of the overflow pipeline to it along the water. 2. The controlled drainage system according to claim 1, characterized in that the clamping device with adjustable force is made in the form of a variable-weight barrier load attached to a scarf or a rotary shutter.

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