CN2268726Y

CN2268726Y - Water drainage with automatically floating soil resistant, water absorbing and bottomless valve

Info

Publication number: CN2268726Y
Application number: CN 95227365
Authority: CN
Inventors: 陈鹤聪
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-18
Filing date: 1995-11-18
Publication date: 1997-11-26
Anticipated expiration: 2005-11-18

Abstract

The utility model belongs to drainage technical field, particularly a water drainage which can be used for draining upper layer clear water for a polluted water precipitation pool and a river, a lake and a pond having greater mud and can be used for draining water under the condition that a water suction point is lower that a water pump and the water head pressure of a water draining pipe is not large with negative pressure and no bottom valve. The utility model can combine automatic anti-pollution sinking-floating with water absorption with no bottom valve negative pressure. The utility model is characterized in that a water pump 1 is connected with a vacuum water tank 2 which can be connected with a water filtering cover 7 through a buried thread water suction flexible pipe, and the water filtering cover 7 can be connected with a float 5 through a shaft pin 6. The utility model has the advantages of simple structure, easy fabrication, low cost, reliable performance, anti-pollution, slag separation and favorable electricity saving effect.

Description

Automatically antifouling suction without bottom valve dewatering installation rises and falls

The utility model belongs to the water discharge technology field and is particularly related to a kind of device of the antifouling without bottom valve negative pressure suction of sink-float discharging clear water automatically that is used for.

At present, in the water discharge technology field, bottom valve, fixing water inlet have mostly been adopted in the suction of water pump, and the mode that is installed in basin bottom is carried out draining.In drainage procedure, the suspension sedimentation problem among the Chang Yinshui of priming reservoir and make the water body upper strata be clear water, lower floor is muddiness or mud.The water sucking mouth fixing when too high then Chi Shui row cross and then suck mud when low less than lower floor, the water sucking mouth can not be with the lifting face lifting of pond middle water level; General draining is drainage by suction, and just the priming reservoir water surface is lower than the pump body center line, and the water sucking mouth is provided with bottom valve, so that can be full of water body in the body, when pump housing wheel rotation, the suction side forms negative pressure, by atmospheric pressure hydraulic pressure in the pump housing.When flowing through water body, bottom valve increases resistance, and water consumption pump motor power, and bottom valve foreign material plug for seal face and close the causing that be not closed completely leaked, turn on pump once more among the Chang Yinshui in water.

The utility model increases vacuum water tank and deducts the suction bottom valve, collects above-mentioned two kinds of functions the antifouling suction without bottom valve of the automatic sink-float drainage by suction device that is one for the shortcoming face that solves above-mentioned prior art existence provides a kind of water sucking mouth with the water surface fluctuation lifting.

Water pump 1 of the present utility model and vacuum water tank 2 connect, sunken cord soft suction hose 3 and filtered water cover 7 of 2 of vacuum water tanks and connects, filtered water cover 7 connects by pivot pin 6 and the floating thing 5 of the shape of a hoof, a draft adjuster 4 is set up in the upper end of floating thing 5, establishes Inlet and outlet

water bend pipe

8 and 9 in the vacuum water tank 2, adds funnel 10 and bypass pipe 11.

Accompanying drawing is the schematic diagram of structure, installation and the user mode of the utility model embodiment, and the utility model will be further described by embodiment below in conjunction with accompanying drawing.

The water pump 1 of the utility model embodiment can be the existing product of single-stage or centrifugal multistage pump multiple centrifugal pump, and vacuum water tank 2 is the cylindrical or prismatic casing of a metal or plastic production, and the two sides of casing are provided with intake-outlet according to the water pump bore that is complementary.Water inlet pipe in the casing is bent upwards 90 ° and leaves 20～40 millimeters space from the case top, and outlet pipe is bent downwardly 90 ° and leaves 40～50 millimeters space from the case top.The water inlet of vacuum water tank 2 connects with an end of the soft suction hose of sunkening cord, and delivery port connects with the water inlet of water pump 1.The upper end of vacuum water tank 2 is provided with funnel 10 and makes add water and exhaust the first time before the turn on pump usefulness, the usefulness of water tank 2 make up water before the turn on pump after bypass pipe 11 is done.After water tank 2 fills with water exhausts, the pipe valve that need close funnel 10 and bypass pipe 11 places.The dischargeable capacity of vacuum water tank 2 should be from the water inlet bend pipe upper port in the vacuum water tank 2 to the upper end of soft suction hose 3 and filtered water cover 7 till more than 2 times of this section pipeline dischargeable capacity.Soft suction hose 3 is the rubber of a built-in steel wire or the suction pipe of sunkening cord of plastics, two ends connect with vacuum water tank 2 and filtered water cover 7 respectively, the size of soft suction hose 3 diameters of sunkening cord should be complementary with the water inlet and the filtered water cover 7 interface diameters of vacuum water tank 2, and length should be decided according to the permission suction head and the pond degree of depth of water pump 1 regulation.Filtered water cover 7 is cover bodies of making the band mesh with metal or other material, and the cover body diameter should be 1.25～1.5 times of soft suction hose 3 diameters, and mesh area summation should be 1.5～2 times of soft suction hose 3 interior cross sections.Filtered water cover 7 connects by two ears on a pin 6 and the floating thing 5, floating thing is the airtight cavity of the shape of a hoof of a metal or other material, its buoyancy should be a bit larger tham floating thing 5, nullify 6, the gravity of filtered water cover 7, soft suction hose 3 and, deduct again above-mentioned 4 objects arrange water water gravity and.Adjuster 4 is block weights that a metal or other material are made, and main effect is the draft of regulating filtered water cover 7, and making its water surface is 2 times of filtered water cover 7 diameters to pin 6 apart from length.Block weight according to above-mentioned requirements increase and decrease adjuster 4.

Vacuum water tank 2 needs through the watertight test in a minute of 147KPa hydraulic pressure.Floating thing needs through the indeformable test in a minute of 117KPa hydraulic pressure.

The utility model utilizes buoyancy and gravity to make the water sucking mouth of dewatering installation be controlled at the certain degree of depth in underwater all the time reliably and rises with the lifting of water level, from motion tracking, makes it arrange the upper strata clear water all the time, reaches every the antifouling purpose of slag.All the time exist bottom valve to cause resistance to increase the problem of power consumption in the draining of negative pressure suction, this device cancellation bottom valve increases vacuum water tank, can realize the suction of without bottom valve negative pressure under the little condition of draining head pressure, reduces pipe resistance, reduces electrical energy consumption of pumping.This apparatus structure is simple, easy to manufacture, with low cost, functional reliability is high, easy to operate, application is wide, accommodation is big.

Claims

1. antifouling suction without bottom valve dewatering installation automatically rises and falls, the floating thing (5) of the shape of a hoof that it is characterized in that it connects through a pivot pin (6) and filtered water cover (7), filtered water cover (7) then connects with vacuum water tank (2) by the soft suction hose (3) of sunkening cord, vacuum water tank (2) connects with water pump (1), constitutes this dewatering installation main body.

2. according to the said dewatering installation of claim 1, it is characterized in that the floating thing of the shape of a hoof is the cavity of a confined space, the upper end is provided with draft adjuster (4), makes pivot pin (6) on its filtered water cover (7) can sink to 2 times of underwaters to the diameter of filtered water cover.

3. according to claim 1 or 2 said dewatering installations, it is characterized in that the inside of vacuum water tank (2) is provided with the water inlet pipe (8) and the outlet pipe (9) at crooked 90 ° of angles up and down, and be provided with watered cup (10) and bypass filler pipe (11).

4. according to claim 1,2 or 3 said dewatering installations, the volume that it is characterized in that vacuum water tank (2) greater than the soft suction hose of sunkening cord (3), water inlet pipe (8) volume and more than 2 times.