CN2279380Y

CN2279380Y - Double-floating box hydraulic automatic valve

Info

Publication number: CN2279380Y
Application number: CN 97200171
Authority: CN
Inventors: 丁宗礼; 孔庆巨; 蔡克训; 吴凤羽; 武维伍; 何立行; 赵希堃; 杨风臣; 柳劲明; 何晓明
Original assignee: Hebei Research Institute of Investigation and Design of Water Conservancy and Hydropower
Current assignee: Hebei Research Institute of Investigation and Design of Water Conservancy and Hydropower
Priority date: 1997-01-07
Filing date: 1997-01-07
Publication date: 1998-04-22
Anticipated expiration: 2007-01-07

Abstract

The utility model relates to a hydraulic and automatic strobe with double floating boxes, comprising an upper floating box, a lower floating box, a door leaf, a roller, etc., wherein, the upper floating box which is arranged in an upper floating chamber, and the lower floating box of a lower floating chamber are respectively fixed to both sides of the roller by connecting rods of the floating boxes; the door leaf is fixed to a roll shaft by the connecting rod of the door leaf, and is on the same side with the upper floating box and is linked with the upper floating box. A door shaft of a support roller is fixed to the side wall of a sluice chamber. The upper and the lower floating chambers are communicated with upper and lower streams of a canal by flow guiding tubes. The automatic strobe is needless of an opening and closing device and a power supply. The open degree of the strobe is regulated automatically according to the water consumption of the lower stream. The requirement of irrigation water is satisfied timely. The balance of water supply and the water consumption is realized. Managers are reduced. The construction investment and the expense of operational management are reduced. The hydraulic and automatic strobe with double floating boxes is safe.

Description

Two buoyancy tank waterpower automatic gates

The utility model belongs to the gate field, is specifically related to a kind of two buoyancy tank waterpower automatic gates that drive the gate automatic open and close by buoyancy tank.

At present, the employed gate of canal irrigation mostly is flat.This gate needs administrative staff to use special opening and closing device to open and close.Thereby, keep the normal operation of channel, just must drop into a large amount of equipment and take a lot of operating maintenance personnel, and can't accomplish according to the open degree of coming the automatic regulating gate of regimen condition.In addition, provide indispensable condition of work, need build brake tube institute, strengthened construction investment, increased operation and maintenance cost, reduced economic benefit in order to give the operating maintenance personnel.

The purpose of this utility model provide a kind of can be according to the two buoyancy tank waterpower automatic gates that come the automatic regulating gate open degree of regimen condition.

This pair buoyancy tank waterpower automatic gate, comprise buoyancy tank 1, following buoyancy tank 3, gate flap 5, roller 9, it is characterized in that floating chamber 2 and the same side, following floating chamber 4 at channel, be positioned at the last buoyancy tank 1 of floating chamber 2 and be positioned at the following buoyancy tank 3 of floating chamber 4 down is separately fixed at roller 9 by buoyancy tank connecting rod 6 both sides, be sagging less than 180 ° of angles greater than 120 °, gate flap 5 by gate flap connecting rod 7 be fixed on the roll shaft 9 with last buoyancy tank in the same side and interlock, the door-hinge 10 that supports roller 9 is fixed on the sidewall of lock chamber 11, last floating chamber 2 communicates with the upstream of channel by mozzle A, and following floating chamber 4 communicates with the downstream of channel by mozzle B.Between channel and last floating chamber, have spout hole 8.Gate flap is the arc gate flap that matches with the disconnected picture of channel.

This utility model has the following advantages:

1. without opening and closing device, without power supply;

2. in time satisfy the irrigation water requirement;

3. using water wisely, what regulate aperture to gate flap automatically by the downstream water supply volume, realize supplying water---watering balance;

4. reduce administrative staff, reduce construction investment and operational and administrative expenses, safe and reliable.

The embodiment of this utility model is referring to figure below:

Fig. 1 is a stereogram of the present utility model

Among the figure:

1---going up buoyancy tank 2---gone up the floating chamber

The following floating chamber of 3---following buoyancy tanks 4---

5---arc gate flap 6---buoyancy tank connecting rod

7---gate flap connecting rod 8---spout hole

9---roller 10---door-hinge

A---upstream mozzle 11---lock chamber

B---downstream mozzle

In Fig. 1, upper chamber and lower chamber are reinforced concrete structure, and roller rolls with general steel plate, and through being welded into cylinder, two ends and door-hinge link, and door-hinge is fixed on the lock chamber.Upper and lower buoyancy tank is all made of general steel plate, and it is circular-arc that the buoyancy tank outer edge all is; Buoyancy tank link rod section steel manufacture connects upper and lower buoyancy tank and roller.Gate flap is made of general steel plate, is rolled into circular arc, links with link rod and roller.

Operating principle is as follows:

Two buoyancy tank waterpower automatic gates are controlled by the level of tail water mainly, closing gate when balance each other in the level of tail water and gate axle center, and gate is opened when the downstream water position is lower than the axle center, and along with the reduction of the level of tail water, gatage also strengthens.When the downstream water position was lower than 15～20 centimetres in axle center, the gate standard-sized sheet passed through design discharge.Gate is subjected to the control of upper pond level again under special circumstances, be that the upstream is when surpassing the top water level certain value, the current-limiting apparatus inflow-rate of water turbine increases, just going up floating chamber's water level raises, gate opening, get rid of the preceding paragraph is mainly caused the certain value that surpasses the highest poultry water level by draining the water yield, in case a last canal section water yield is overflowed.The effect of spout hole is to keep going up the certain water level in floating chamber, unnecessary water is overflow go to the downstream.

This gate is used for non-icing irrigation system, can realize the automation water delivery and the retaining task of whole irrigation system.

Claims

1. two buoyancy tank waterpower automatic gate, comprise buoyancy tank 1, following buoyancy tank 3, gate flap 5, roller 9, it is characterized in that floating chamber 2 and the same side, following floating chamber 4 at channel, be positioned at the last buoyancy tank 1 of floating chamber 2 and be positioned at the following buoyancy tank 3 of floating chamber 4 down is separately fixed at roller 9 by buoyancy tank connecting rod 6 both sides, be sagging less than 180 ° of angles greater than 120 °, gate flap 5 by gate flap connecting rod 7 be fixed on the roll shaft 9 with last buoyancy tank in the same side and interlock, the door-hinge 10 that supports roller 9 is fixed on the sidewall of lock chamber 11, last floating chamber 2 communicates with the upstream of channel by mozzle A, and following floating chamber 4 communicates with the downstream of channel by mozzle B.

2. gate according to claim 1 is characterized in that having spout hole 8 between channel and last floating chamber.

3. gate according to claim 1. it is characterized in that gate flap is the arc gate flap that matches with canal cross section.