Water intake with trash screen for shallow water (versions) and method of its fabrication. RU patent 2505643.

FIELD: construction.

SUBSTANCE: water intake contains base or platform, housing and trash screen at its ends. The platform if formed and housing is fixed to its upper surface. Then at least one screen is installed so that inner space embodies platform with housing and screens at the bottom of water source. Outlet of the housing is connected to pipeline. Water intake forms half cylinder at the platform. Anchors can fix edges of water intake to the upper surface of platform. The base can have barrier placed at its one end. Each of screens is installed to the platform near the housing and forms half cylinders. Each screen forms inner cavity communicated with inner hollow space of the housing. Each first and second screens contain a lateral wall, closed distal end and open proximal end fixed to the housing. Closed distal ends have end walls. Water intake can have intermediate walls located between inner space of the housing and inner space of screens. In each transient wall there's at least one flow modifier. Flow modifiers together with platform form half cylinder. Water intake can have a collector placed in screens. Screen structure can include ribs located along screen length. It can also have wire located across ribs.

EFFECT: increasing protective efficiency of screens from silts and providing uniformity of flow distribution along surface area of screens.

28 cl, 16 dwg

In installations for the production of drinking water production plants, irrigation systems and plants for production of electricity uses large amounts of water for their work. To collect water used water intakes with sieve in different reservoirs. As shown in fig.1, one common type of receiving water with 10 sieve has a T-shaped configuration with a two sieves 12A-B on opposite ends of the Central building 14. Outlet 16 connects with the Central case of 14 for connection with the components of the system of the receiving water with sieve.

Sink 10 with sieve should be easy to keep and aquatic life, and prevent the accumulation of sediment along the Sith 12A-B of the receiving water. For this purpose, the flow rate through the sieve must be kept below the maximum peak level, which can be approximately 0.5 feet per second. One way to reduce flow resistance and speed control flow evenly across the surfaces of the Sith is the use of modifiers input flow sieve. For example, the screen from Johnson Screens successor of this application improves the homogeneity of the flow with the use of modifiers flow described in the patents of USA №№ 6051131 and 6712959 that is included here in all fullness as a reference material.

When used in the original drainage water intakes 10 with sieve should be located with the presence of the amount that is not less than the minimum ambient interval. As shown in fig.1, standard water inlet 10 requires that the above space over and under the receiving water with 10 sieve was, at least, half the diameter of the recipient. For example, sink 10 with sieve having a diameter of 24 inches, for the normal functioning requires a period of 12 inches above and below the receiving water 10. Thus, sink 10 with sieve diameter of 24 inches can be installed in water with full minimum depth of 48 inches (4 feet).

Available sources of source water for water intake systems are becoming smaller. The application in shallow water used plate sieves, plugs for speed regulation or stands for the abstraction of raw water. These traditional approaches a flat location at the bottom of the source of raw water. However, the flat shape of the Sith these types can cause problems trough and strength when they are exposed to the flow and sediment. In addition, SITA these types can cause difficulty in maintaining the purity of sediment. Finally, plane sieves differ uneven distribution of the flow on the square surfaces of the Sith, which can cause problems during the work. The object of the present invention aimed at eliminating or at least reducing the effects of one or more of the above problems.

device with sieve has a base which is located at the bottom of the water source. The base can be a concrete slab or platform, based on a bottom and has the upper surface. Sink with sieve is located on the basis of and builds on it half of the cylinder. Anchors can attach the edge of the water intake with sieve to the upper surface of the base. In a river or a pond with strong currents basis, preferably, has a barrier, situated on one of his late in the flow of source water, to reject sediments and sludge from the water intake with sieve.

Sink with sieve has the case with the first and second screens on its ends. Each of the Sith make up half of the cylinder at the base and forms in it the interior space. The inner spaces are connected with the inner space of the shell in such a way that the original water in a sieve, takes place in the body and out through the outlet.

Each of the first and second sieve has the side wall screens, closed distal end and outdoor proximal end. Outdoor proximal end is attached to the chassis, while the closed distal ends have the end wall, which form a half circle. Preferably, drainage with sieve has an intermediate wall located between the internal space of the housing and inner spaces Sith. In each of transition of the walls is at least one thread. Modifier flow has one open end of which is connected with the inner space of a sieve, and has other open end of which is connected with the internal space of the case. Modifier flow can have two or more modifiers flow, inserted into each other, and these modifiers flow together with the Foundation also form the half-cylinder.

Sink with sieve can also have a collector, located in the screens for the acceptance of the supplied air is used to clean screens from sediments. The design of the Sith may include ribs, along the length of the sieve, and can have a wire, located across the ribs. In General, sink with sieve is installed on the upper surface of the base may have all the signs of normal water intake with sieve, but have a very low profile for use in more shallow water.

The above summary of the invention does not provide for coverage of each potential option exercise or each object of the present invention.

The essence of the invention is illustrated by drawings, where:

Fig.1 - perspective view of the receiving water with sieve according to the state of the art.

Fig.1 - view systems of the receiving water with sieve prior art used in the shallow source, such as a river.

Figure 2 - view in terms of system of water intake with sieve according to the present invention.

Fig.3-3C - types in the plan, side and back end of the receiving water with sieve on the platform for the water intake system.

Fig.4-4B - types of T-shaped water intake with sieve width 24 " prior art in comparison with the receiving water with a half sieve width 24 " according to the present invention.

Figure 5 - view part of the screening sections for the receiving water body with sieve according to the present invention.

Fig.6-6C - types in plan and with the butt of one type of recipient with sieve for the described system.

Fig.7-7B - types in the plan and from the end of the recipient with sieve with the first type modifier flow.

Fig.8-8B - types in the plan and from the end of the recipient with sieve with the second type modifier flow.

System 50 recipient with filter, shown in figure 2, has two water intake 100 with sieve, although they can be used more or less sit. Each recipient with 100 sieve is located on a base or platform of 60, located in the flow of the water source, such as a river. On fig.3 and 3B shows the top and side of the platform 60. Platform 60 may constitute a concrete slab, etc. and may rely on the bottom of the water source. As shown in fig.3, 60 platform, preferably, it takes at least 3-4 inches above the bottom of the water source.

In a river or other source, where there is over, the front end of each platform has 60 profiled barrier 62 for the separation of flow of water before receiving water with 100 sieve. Profiled barrier 62, preferably, has a sloping edge and divides the stream of water, sediments and sludge. In addition, as shown in fig.3 profiled barrier 62, preferably, runs roughly the height of the receiving water with 100 sieve, based on the platform 60. Barrier 62 can be executed separately from the platform 60 or may be formed as a single whole with it. As an alternative barrier 62, drainage 100 with sieve can be supplied profiled end.

As shown in fig.3, drainage 100 with sieve can have a T-shaped configuration with the first and second sections 110A-B sieves, United on opposite ends of the Central building of 120. The end wall of the 115A-B close the ends of sections 110A-B sieve, and Central outlet 130 runs from the Central building of 120. Alternatively, drainage 100 with sieve can have one section 110 screens, connected with housing 120 vent 130, while the other end of the housing 120 closed and has no second section 110 of the sieve.

As shown in fig.3, drainage 100 with sieve forms half cylinder on the top surface of 60 platform. In General, drainage 100 with sieve has sieves for screening sections 110A-B along with the end walls 115A-B in the form of a half-circle. Housing 120 can have side wall, while it can be a different configuration. All of these components (110, 115, 120) can be attached to each other using a known hardware. In one embodiment, the water inlet 100 with sieve has a flat bottom component that is attached to the edges of these mutually linked components (110, 115, 120). This flat bottom can lie on the upper surface of the platform 60, while the anchor bolts 64 etc. attach the inlet 100 with sieve to 60 platform.

In another embodiment, the water inlet 100 with sieve is a cylindrical (or, at least partially, cylindrical) the receiving water with sieve, partly contained within the material platform 60. In this embodiment, the fully or partially cylindrical water inlet 100 with sieve is covered in concrete slab platform when forming the platform 60 using well-known techniques.

When assembling the inlet 100 with sieve can be pre-assembled on the platform 60 on earth, and both components 60/100 can be submerged to the bottom of the water source. In the alternative to the recipient with 100 sieve and 60 platform can be formed separately. Platform 60 can be placed at the bottom of a water source and sink with 100 sieve can be attached to the upper surface of 60 platform, with anchors 64. These and other forms of design can be used for system 50 recipient with sieve.

As shown in figure 2, outlets 130 of the receiving water with 100 sieve are joined by 52 with equipment (not shown), configured for use of water to be abstracted. Preferably, water intakes 100 and 60 platform shifted relative to each other so that they were not in a cocurrent flow relative to each other. Sink with 100 sieve is installed on the bottom of the source water, reduces the depth necessary to fence the same thread, as in the case of usual receiving water. For example, drainage 100 with sieve can have a diameter of 24 inches (radius 12 inches). This requires a period of 12 inches above the receiving water with 100 sieve for proper operation.

As shown in fig.4, for example, drainage 100 with sieve according to the present invention, the diameter d 24 inches can operate at full minimum working depth D1, which is approximately 20 inches. This gives advantages over the known systems through the use of a 24-inch T-shaped sieves 10 prior art are shown for comparison are fig.4. Such famous T-shaped screen 10 prior art requires depth D2 water 48 inches.

As shown in fig.3-3B, each sieve sections 110A-B makes a lot of grooves for water inlet in the screen section 110A-B. Grooves can be oriented in the transverse direction or parallel to the axis of the sieve sections 110A-B. Preferably, stepping turns profiled wire form slots screening sections 110A-B, although the screen section 110A-B can also be hard tubular element with formed in it grooves. Screen section 110A-B can maintain an even flow distribution on the square surfaces of the Sith. Curved rounded screen section 110A-B, also provide the strength of the receiving water with 100 sieve having a low profile. Thus, curved screen section 110A-B may not require additional structural support structure in their internal spaces for holding the surfaces of the Sith.

As shown in figure 5, one form of designs for decks sections 110 has the shaped wire 112 and bearing bars 114. In one embodiment, the bearing bars 114 pass along the sieve of section 100, and shrink wire 112 wound on a circle and are welded to the carrying bruskam 114 for the formation of a sieve section 110 using well-known techniques. Shrink wire 112, preferably, has a wedge-shaped or V-shaped with a broader base of wire 112, turned out to facilitate the sliding of the sediment along the surfaces of the Sith. For example, shrink wire 112 can be a VEE-WIRE® from Johnson Screens. (VEE-WIRE is a registered trademark of Weatherford/Lamb, Inc.).

Another example of the receiving water with 100 sieve shows 6A-6C in Fig. This water inlet 100 has a screen section 110A-B, end walls 115A-B, Central building of 120 and outlet 130 according to the above. Inlet 100 forms a half cylinder, as shown in fig.6-6C. Sink with 100 sieve can be closed or open reason 117, as described above, for a bearing on the upper surface of the platform.

In addition to these characteristics of the receiving waters 100 with sieve has an air pipe 140 cleaning reverse flow and collector 142 are intended for purification of the reverse flow of water intake 100 with sieve through the blowing of air sediment. Air manifold 142 for cleaning of the reverse flow is connected with an air pipe 140 cleaning reverse flow inside the screening sections 110A-B and housing 120. When using pipe 140 and collector 142 allow to clean the reverse flow of water intake 100 with sieve by blowing air to remove sediment. These characteristics can be secured system Johnson Simple s Hydroburst System. In General, the system Hydroburst used compressor tank, valves and controls for the implementation of the purging air screening sections 110A-B. When the periodic implementation, air purge washes away the detritus from the surface of a sieve.

In addition to the system to clean the reverse flow of the water inlet 100 according to the present invention may include modifiers flow inside the screening sections 110A-B. flow Modifiers can be used with a system for cleaning the reverse flow or without it. A more detailed description of modifiers flow is shown below, with links to fig.7-7B and 8A-8B.

Sinks with 100 sieve shown on fig.7-7B and 8A-8B, each has a T-shaped configuration with the first and second screens 110A-B, the United opposite ends with the Central building of 120. Central building of 120 forms a hollow space 122 and has side wall 124 and opposite intermediate walls 126A-B. Outlet 130 connects with a hole 132 in the wall of 124 and has a flange for connection with other components of the water intake system (not shown). Both intermediate walls 126A-B have a Central hole 128, the receiving stream from one of the sieve sections 110A-B. Both screen section 110A-B have open ends are connected with intermediate walls 126A-B enclosure, and closed-end wall of the 115A-B, that may (or not) is configured to reject the plan. Each of the sieve sections 110A-B forms half of the cylinder and has plenty of grooves for water inlet in the screen section 110A-B, as described previously. Here slots can be oriented in the transverse direction or parallel to the axis of the sieve section 110A-B. Preferably, stepping turns profiled wire 112 form slots sit 110A-B, although SITA 110A-B can also be a hard tubular element with formed in it grooves.

Central passages 128 in intermediate 126A-B walls may be sufficient to regulate the flow velocity on the surfaces of sieves to maintain preferred speed of surface flow. However, each intermediate wall 126A-B, preferably, has modifier 150 stream, located in the Central hole 128 for additional regulation of the flow velocity. In General, in the receiving waters 100 with sieve can be used modifiers 150 stream, which have one or more tubes, located in the holes 128 and partially inside the cavities of the sieve sections 110A-B, to create a message on the fluid of the inner space-the sieve sections 110A-B, through the holes 128 and in the hollow space 122 of the Central building of 120.

In the receiving waters 100 with sieve shown in fig.7-7B, are single-threaded pipe 160 modifier 150 stream, located in the holes 128. In the receiving waters 100 with sieve shown in fig.8-8B, used double-flow pipes 170 and 180, inserted into each other in the holes 128. In both configurations, the pipe 160 and 170/180 modifiers 150 thread can actually be a half-cylinder with open or closed lower surfaces, although may be used completely cylindrical tubes with an offset from the center in the holes 128 in the intermediate walls 126A-B.

Sink with 100 sieve and modifiers 150 thread on fig.7-7B and 8A-8B is designed to reduce the velocity at the entrance into the slots of the Sith before the preferable to a peak value, which can be approximately is 0.135 m/s (0.5 ft/s in some versions of the runtime. Lower-speed input protects the aquatic flora and fauna and prevents clogging of sediments. Designers configure length, diameters of straight sections and other variables pipe 160 and 170/180 flow modifiers for the maintenance of the average flow through the surface of the Sith as close as possible to a valid peak flow velocity and is it possible more evenly distributed across the surfaces of the Sith. When the flow modifier used two pipes 170/180, as shown in fig.8, for example, larger diameter pipe 170 can be approximately 50% diameter of sieve section 110 and can be approximately 16% of the length of sieves 110. Pipe 180 smaller diameter, inserted inside the outer tube 170, can have a diameter of approximately 70% of the diameter of the outer tube 170 and can have a length, which runs approximately 67% of the length of sieves 110. Additional details relating to the design modifiers 150 stream, described in U.S. patent № 6051131, which is included here in its entirety.

As used herein and in the formula of the invention, terms such as "cylinder" and "cylinder", are considered as specific and related to the General geometrical form, known under this name. Terms such as "half-cylinder" and "", belong to the division of such common geometric shapes along the longitudinal axis and may not be exactly half. Thus, the use of the terms "side wall of the cylinder and half-cylinder" can be defined radius, as in the standard geometric form. However, the side wall of the cylinder and half cylinder, as is indicated here, can be defined many of inclined surfaces, surface of an elliptic surface, oval surface parabolic surface or any other curved. The preceding description of preferred and other embodiments of the invention is not limiting the amount or application of the present invention. Revealing the essence of the invention, the Applicants wish to receive all patent rights, presented to the appended claims. Thus, it is assumed that the accompanying formula of the invention includes all modifications and changes in full, in which they go beyond the formula of the invention or its equivalents.

1. device with sieve, containing: housing mounted on the surface of the water source, and the building forms a hollow space inside it and has an outlet; and at least one sieve, set adjacent to the body and generates half cylinder on the surface, and at least one sieve forms in it the interior space, internal space communicated with the internal space of the case.

2. The device of claim 1, wherein at least one sieve contains the side wall screens, closed distal end and outdoor proximal end, and outdoor proximal end is attached to the body and communicated with the cavity of the inner space.

3. The device according to claim 2, which closed distal end contains the end wall, forming a half circle.

4. The device according to claim 1, which incorporates: an intermediate wall located between the inner space of the hull and the inner space, at least one of sieves; and at least one modifier flow, located in the intermediate wall and creating a message of the inner space, at least one of the sieves with the internal space of the case.

5. The device according to claim 4, in which at least one modifier stream contains at least two modifiers flow, inserted into each other.

6. The device according to claim 4, in which at least one modifier flow together with surface forms half of the cylinder.

7. The device according to claim 1, also comprising a base, relying on the bottom of the water source and has a surface of the case and at least one installed on it sieve.

8. The device according to claim 7, wherein a set of anchors attach the edge of the chassis and at least one sieves to the surface.

9. The device according to claim 7, in which the base contains barrier, located in one of his late in the flow of the water source.

10. The device of claim 9, in which the barrier passes on the height corps, located on the grounds.

11. The device according to claim 1, additionally contains collector located, at least, in one of the cite for receiving of the air supply.

12. The device of claim 1, wherein at least one sieve contains: a set of edges, along the length of at least one sieves; and many turns of wire positioned across the ribs.

13. The device of claim 1, wherein the housing together with the surface forms a half-cylinder.

14. device with sieve, containing: the Foundation, based on a bottom of a water source; the body is resting on a Foundation, and housing forms the inner hollow space and has an outlet; and at least one sieve, set on the basis adjacent to the body, and at least one sieve forms half of the cylinder at the base and forms an inner cavity, with the internal space of the case.

15. The device according to paragraph 14, in which at least one sieve contains the first and second sieve is established on the basis adjacent to the opposite ends of the case.

16. The device according to paragraph 14, in which at least one sieve contains the side wall screens, closed distal end and outdoor proximal end, and outdoor proximal end is attached to the chassis.

17. The device according to article 16, which closed distal end contains the end wall, forming a half circle.

18. The device according to paragraph 14, additionally contains: an intermediate wall located between the inner space of the hull and the inner space, at least one of sieves; and at least one modifier flow, located in the partition wall, with at least one modifier flow has one open end, creating a message of the inner space, at least one of the sieves with the internal space of the case.

28. The way of performance of the recipient with sieve, which form the platform with the upper surface; attach the housing to the top surface of the platform; attach at least one sieve on the basis so that the inner space, at least one of the SITA reported with the inner space of the body; is placed platform, housing and at least one sieve in a water source, connect the outlet of the hull with the pipeline.