CN2537734Y

CN2537734Y - Novel trash rack

Info

Publication number: CN2537734Y
Application number: CN 00224009
Authority: CN
Inventors: 邱辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-01
Filing date: 2000-01-01
Publication date: 2003-02-26
Anticipated expiration: 2010-01-01

Abstract

The drain grating of the utility model is composed of a slag guiding plate with an L-shaped water blocking surface and the flow direction to form an angle Theta less than or equal to 45 degrees, and a grating which forms an angle less than or equal to 30 degrees with the ditch bottom. The L-shaped slag guiding plate is connected outside the pressure pipe in a tangential way. The grating is formed by steel pipes arranged in parallel, the spacing is less than the gap of the rotating wheel impeller of the hydraulic turbine, the lower end is contacted with the ditch bottom in a closed way, the upper end is connected with the pressure pipe, one end of the pressure pipe is closed, the other end is connected with the pressure water source, and the top surface is slightly lower than the water drainage surface. Phi 3 to 5 mm vertically upward holes are drilled on the water surface of the lower section of the steel pipes forming the grating at the interval of 30 to 50 mm. A supporting frame is arranged below. The use is secure and reliable, the production output can be enhanced, and the utility model can save electricity and labor, and can discharge slag automatically. If a pressure water source can be inducted, the electricity is not required, the benefit can be increased, and the effect is better.

Description

Novel trashrack

Quilts such as this novel trashrack is the power station people that is used for the hurdle and lives bits by hydraulic turbine water, foreign material etc. and prevent to fall into water, hold pour the device of blocking together in the hydraulic turbine.

Existing trashrack is perpendicular to (or near normal) channel and is installed in the channel.Like this, can make drowning people, not hold and poured in the hydraulic turbine, also bits, foreign material etc. can be blocked.But the people who falls into water, hold once be subjected to the impact of water to make it to be blocked to hold just to cannot say for sure its life security.Bits, foreign material etc. have also easily been piled up, have piled up many on trashrack with regard to water blockoff, greatly reduce exerting oneself of generator, and the amount of labour that deslagging spent on trashrack are also very big, also fail to reach desirable effect.This makes the power station cadres and workers hinder brains.

The purpose of this utility model is that design is a kind of can block water blockoff not again such as bits in the water, foreign material, and can automatic discharge, makes the people that falls into the water, holds and meet this and its life is had the trashrack of safe and reliable guarantee on sizable degree.

Its objective is such realization: trashrack of the present utility model comprises that grid that become ° angle, a≤30 with the canal bottom surface block with " L " shape and blocks the water surface becomes θ≤45 with current direction slag-guiding plate.Fence is formed by the parallel arrangement of steel pipe (square is better), and its spacing should be less than the turbine runner blade gap, the lower end closed of fence and touch mutually with at the bottom of the canal, and the upper end is connected with force pipe.This force pipe is parallel with " L " shape pushing off the slag face, end sealing, and a termination pressure water source, end face should be a little less than the draining plane.(answering the water surface) interval 30-50mm has aperture Φ 3-5mm flushing cinder hole vertically upward on the hypomere of the steel pipe of forming barrier." L " shape slag-guiding plate is tangent to be connected in outside the force pipe.Other draws the pressure water source of certain flow, the peace and quiet no slag of water quality requirement.If not having this water source can replace by water pump.

The utility model trashrack, easy installation simple in structure, safe and reliable, the more important thing is the generated output that can improve the power station, and power saving, laborsaving, again can automatic discharge, if other invites pressure water source, just not electricity consumption fully.And again for this power station increases by a waterpower resourses synergy, effect is also better.The utility model trashrack is provided by following examples and accompanying drawing.

Fig. 1 is the mansion view of a novel trashrack.

Fig. 2 is the sectional view of Fig. 1 along A-A.

Describe the details of this novel trashrack in detail below in conjunction with Fig. 1,2.

At first, with 4 one sealings of force pipe, one connects pressure water source, leaves the suitable dimension that links to each other with square steel pipe 2 and the link slot 3 of spacing, it is fixed in the canal both sides dike 1,7 again, makes it to flow out to becoming θ≤45 with water, and upper surface is more lower slightly than draining face.Use support 6 (one or more) also to be fixed in the canal dike 1,7 then, make it with force pipe 4 in a plane, and become ° angle, a≤30 in horizontal plane.To be drilled with spacing again is in the square steel pipe 2 parallel wedge pressure solenoid link slots 3 in 30-50mm and the hole 5 of aperture Φ 3-5mm, make it to be fixed on the support 6, the hole is to vertically upward, go up and be connected with force pipe 4, following sealing with 10 touch mutually at the bottom of the canal, evenly distributed forming, its tube pitch is less than the impeller clearance of rotary wheel of water turbine.If the insufficient strength of support 6 pressures then can add auxiliary stand 8 therebetween to support the jail.At force pipe outside phase cut-grafting " L " shape slag-guiding plate 9, make the slag-guiding plate bottom surface lower again, obstructing surface and ground near normal than draining face road.

Preferred plan: be with a=30 ° of angle, θ≤45, pressure water source flow abundance.Steel tube forming or square, the flushing cinder hole with ground vertically upward, like this, but a material saving, two can reach the effect of automatic discharge equally.

Claims

1, a kind of with the fixing novel trashrack of support, it is characterized in that: block on the dirty face and link to each other, be less than or equal to 30 ° of angles (α≤30 °) with one-tenth at the bottom of the canal down and touch mutually with L type slag-guiding plate.

2, novel trashrack according to claim 1 is characterized in that: L type slag-guiding plate is less than or equal to 45 ° (θ≤45 °) with the angle of current direction on horizontal plane, and the bottom surface is more lower slightly than channel draining face.

3, novel trashrack according to claim 1 is characterized in that: block dirty face and be to be gone up by steel pipe (square is better, matrix the best) and be connected with penstocks, following sealing is touched mutually with at the bottom of the canal, parallel evenly distributed forming.

4, according to claim 1,3 described novel trashracks, it is characterized in that: steel pipe bottom 30-50mm at interval is drilled with 3-5mm hole vertically upward.