CN87205941U

CN87205941U - Automatic liquid sampler

Info

Publication number: CN87205941U
Application number: CN 87205941
Authority: CN
Inventors: 邱宏奎
Original assignee: GEDIAN CHEMICAL PLANT WUHAN CITY
Current assignee: GEDIAN CHEMICAL PLANT WUHAN CITY
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1988-01-20

Abstract

The utility model relates to an automatic liquid sampler which is suitable for automatically and continuously sampling flowing water quality, and energy resource is not needed as power source singly. The automatic liquid sampler is characterized in that a floating body is provided with an impeller and an impeller shaft, a section of the blades of the impeller is inserted in water needing to be sampled, pressure generated by water stream is utilized for pushing the impeller to drive the impeller shaft to rotate together, one shaft end surface of the impeller shaft is connected with the eccentric shaft of a transmission mechanism, and motion can be transmitted to the piston rod of a water pump via a connecting rod for realizing automatic and continuous sampling work.

Description

Automatic liquid sampler

What the present invention relates to is the device of taking water sample in the water quality that flows, particularly polluted water is measured the liquid automatic sampler of sampling in environmental monitoring.

At present, in environmental monitoring, to flowing water quality, still use artificial timing sampling in a large number as the sampling of the waste water of rivers, lake, sea, pond, reservoir and industrial and mining enterprises' discharging etc., its reason is as adopting existing electronic sampling thief, and it is uneconomical economically.This electronic automatic sampler, by accumulator and direct current generator as its power section, driving a suction pump (serving as with the medical glass syringe) with an eccentric disc linkage assembly extracts water sample out, because gas attack is big in the sampling thief working environment, so accumulator, the direct current generator life-span is very short, it draws water also often damaged with glass syringe, such liquid automatic sampler often just needed to change less than one month service time, therefore, used not extensive at present.

The purpose of this utility model is to propose a kind ofly need not to use the energy and the power that provides in addition, selects a kind of long service life for use, and the installation and maintenance liquid automatic sampler formed of gear train easily replace above-mentioned sampling thief.

The liquid automatic sampler of the utility model indication, form by power section, gear train, water pump, filtrator, retaining valve, shunt etc., it is characterized in that: power section is by a buoyancy aid (1), impeller (4), and impeller shaft (3) and bearing seat (2) are formed; Gear train is that the eccentric rod gear that adopts is filled the post of; Power section and being connected of gear train be with excentric shaft (6) footpath in impeller shaft (3) one axle heads and the excentric shaft linkage assembly by eccentric disc (5) respectively with being threaded, an one external thread axle and an internal thread hole are arranged on this eccentric disc (5), its two axis parallel, axis is apart from equaling the eccentric throw of impeller shaft (3) with excentric shaft (6), that is equal half of stroke of piston in the water pump (ram pump) (8), eccentric disc (5) is gone up external thread and is connected with impeller shaft (3) one axial end center screws, and inner bolt hole is connected with the external thread axle of excentric shaft (6).

The buoyancy aid that adopts in the liquid automatic sampler described in the utility model is to serve as with a straddle barge, its two hulls afterbody respectively has a fixing rudder, the direction of rudder and hull parallel longitudinal, impeller shaft (3) places not connecting place of straddle barge two hulls (promptly 1) front middle part, the blade of impeller (4) radially evenly distributes along impeller, blade has one section can insert the water surface, and impeller shaft (3) two ends axle journal places respectively in the bearing seat (2) on straddle barge two hulls, adopts oil lubrication.

Principle of work of the present utility model and process are achieved in that buoyancy aid (1) (being straddle barge) places the water with certain flow rate, because the effect of rudder, make current direction vertical with impeller (4) blade direction all the time, thereby promoting impeller (4) and impeller axle (3) rotates, excentric shaft this moment (6) also rotates around the impeller axis, it is reciprocating to promote ram pump (8) through connecting rod (7), after this moment, water sample filtered through filter (10), by extracting out in the retaining valve (9).

Extract the water sample amount out as need control, can adopt after the shunt shunting required water sample transported in the same bottle to get final product.

When being used for still water, can adopt towboat to drag buoyancy aid (1), make wheel rotation, also can reach continuously sampling purpose automatically.

Consider the utility model working environment of living in, all adopt anticorrosive material to manufacture so form the main parts in addition of the each several part of liquid automatic sampler, the filtrator that is disposed is triple reflux and filter modes, can satisfy under various water quality environments and use.

Therefore, the obvious advantage that the utility model had is: 1. do not need to provide separately the energy, 2. can work and not be subjected to water level change and water velocity to limit in any water quality environment, 3. simple in structure, to use reliably, the life-span is long, be widely used, economic worth is obvious.

Accompanying drawing is a liquid automatic sampler device sketch.

Among the figure:

1---buoyancy aid (straddle barge) 2---bearing seat

3---impeller shaft 4---impeller

5---eccentric disc 6---excentric shaft

7---connecting rod 8---water pumps (ram pump)

9---retaining valve 10---filtrator

The utility model has an embodiment, the whole gross weights of this material object are 16 kilograms, straddle barge is about 900 millimeters, straddle barge wherein, impeller, filter bodies etc. adopt PVC polyvinyl chloride hard plastic production, and impeller shaft, eccentric rod gear and ram pump movement parts mostly adopt stainless steel to make, and retaining valve is that the mister head of standard substitutes.This embodiment adopts the adjustable shunt sampling, and its per minute sampling is 67 times when water velocity is 1.2～1.5 meter per seconds, and the water sample lift reaches 6 meters.

Claims

1, a kind of liquid automatic sampler of in environmental monitoring, the water quality that flows being measured sampling, form by power section, gear train, water pump, filtrator, retaining valve, shunt, it is characterized in that: power section is by buoyancy aid (1), impeller (4), impeller shaft (3) and bearing seat (2) are formed; Gear train is to adopt eccentric rod gear; Power section and being connected of gear train be with an eccentric disc (5) with impeller shaft (3) one axle heads and excentric shaft (6) respectively with being threaded; Buoyancy aid (1) is to serve as with a straddle barge, its two hulls afterbody respectively has fixedly rudder, the direction of rudder and hull parallel longitudinal, the front middle part that impeller shaft (3) places straddle barge (1) is the connection not, the blade of impeller (4) radially evenly distributes along it, blade has one can insert the water surface, and impeller shaft (3) two axle journals place respectively in the bearing seat (2) on the straddle barge.

2, according to claim 1 or 2 described liquid automatic samplers, it is characterized in that: an external thread and an inner bolt hole are arranged on the eccentric disc (5), its two axis parallel, two axial line distance equal the eccentric throw of impeller shaft (3) and excentric shaft (6), promptly equal half of stroke of piston in the water pump (ram pump) (8), external thread on the eccentric disc (5) is connected with impeller shaft (3) one end face center screws, and internal thread hole is connected with the external thread of excentric shaft (6).