CN2783308Y

CN2783308Y - Sealed automatic sampler

Info

Publication number: CN2783308Y
Application number: CN 200520056668
Authority: CN
Inventors: 曹冠璟; 安晓春
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-01
Filing date: 2005-04-01
Publication date: 2006-05-24
Anticipated expiration: 2015-04-01

Abstract

The utility model relates to a sealed automatic sampler, which is characterized in that piston drivers [6], [8] are respectively arranged in pistons [4], [7], and a quantitative pipe [5]and a sample storage tank connection tube [10] are symmetrically arranged on the relative positions of a sampling pipe [1]; the sample storage tank connection tube [10] is connected with a sample storage tank [11] which is connected with a sampling bottle via a control valve; a gap [2] is arranged on the front end of a sampling piston [7], and a through hole [9] is arranged on the sampling piston [7] corresponding to the position of the quantitative pipe [5]and the sample storage tank connection tube [10]. The utility model always keeps a favorable sealed state in the process of sampling, so the volatilization of samples is reduced, the typicality of the samples is increased, harmfulness is reduced, environment pollution is reduced, and automatization control is easily realized; the utility model has the advantages of reasonable design, simple structure and strong practicability.

Description

The sealing automatic sampler

Technical field

The utility model relates to a kind of sample sampling apparatus, particularly a kind of sealing automatic sampler.

Background technology

In the production run of industries such as oil, chemical industry, medicine, for collecting device or pipeline internal medium sample, it is analyzed comparison, obtain technical parameter, usually to use sampling thief.The sampling thief that uses generally comprises sampling pipe, sampling pump, sampling bottle and control system at present, and sample is adopted in the sampling bottle by the sampling pipe equal proportion under the effect of sampling pump.This sampling thief is mainly used in the sampling of low volatility liquid such as water quality because sealing is relatively poor, for high volatile volatile liquid, in long continuous sampling process, causes the representativeness reduction of sample owing to the volatility of sample.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art and a kind of sealing automatic sampler that can avoid the volatilization of sample in the sampling process is provided.

The purpose of this utility model can realize by following technical measures: a kind of sealing automatic sampler, comprise the sampling pipe that has joint, sampling bottle, the sampling piston is housed in the sampling pipe, the sampling piston is connected with actuator piston, relative position is arranged with quantity tube on the sampling pipe, sample storage can adapter tube, quantitative piston is housed in the quantity tube, quantitatively piston is connected with actuator piston, sample storage can adapter tube connects the sample storage jar, the sample storage jar connects sampling bottle through operation valve, on one side the sampling piston nose is provided with breach, the breach direction is corresponding with quantity tube, the corresponding quantity tube of sampling piston, the sample storage can adapter tube position is provided with through hole, when moving the location behind the sampling piston, sampling pipe is connected through its front end breach and quantity tube, and sample storage can adapter tube is in closed state, when sampling piston reach location, sample storage jar and quantity tube are connected by its through hole.

In this sample storage jar floating seal is housed.

Controlling of sampling valve between sample storage jar and the sampling bottle is a normally closed type controlling of sampling valve.

In actual applications, usually the sampling piston is in the reach positioning states, when need are sampled, moves on to its front end breach behind the sampling piston and connects the quantity tube location, quantitatively move quantitative draw samples behind the piston in the quantity tube, after the reach of sampling piston resetted, its through hole was connected sample storage jar and quantity tube, and quantitative piston reach is gone into the sample storage jar with the sample force feed in the quantity tube, when sample collecting quantitatively or regularly reaches, the controlling of sampling valve is opened, and the sample of sample storage jar is entered sampling bottle, closes the controlling of sampling valve then.

In the sample storage jar of the present utility model floating seal is arranged, normally closed type controlling of sampling valve is arranged between sample storage jar and the sampling bottle, in sampling process, remain good sealing state, can reduce the volatilization of sample, improve the representativeness of sample, harm reduction reduces environmental pollution, realize robotization control easily, and it is reasonable in design, simple in structure, practical.

Description of drawings

Fig. 1 is a structural drawing of the present utility model;

Fig. 2 is a sampling bottle of the present utility model and the synoptic diagram that connects of sample storage jar;

Fig. 3 is a user mode reference diagram of the present utility model.

Embodiment

With reference to Fig. 1, Fig. 2, a kind of sealing automatic sampler comprises the sampling pipe [1], the sample storage jar [11] that have joint [3], and floating seal [12] is equipped with in sample storage jar [11] lining, the bottom is connected to sampling bottle [14], between sample storage jar [11] and the sampling bottle [14] normally closed type controlling of sampling valve [13] is housed.

Sampling piston [7] is housed in the sampling pipe [1], sampling piston [7] is connected with sampling actuator piston [8], the upper and lower relative position symmetry in sampling pipe [1] middle part is connected to quantity tube [5] and sample storage can adapter tube [10], quantitative piston [4] is equipped with in quantity tube [5] lining, quantitatively piston [4] is connected with quantitative actuator piston [6], and sampling piston [7] middle part has through hole [9].

Sampling piston [7] front end is provided with breach [2] on one side, and this breach [2] moves when locating after can making sampling piston [7], and sampling pipe [1] is connected with quantity tube [5], and takes over [10] sealing; During sampling piston reach location, through hole [9] is connected sample storage jar [11] and quantity tube [5].

The utility model can pass through joint [3] and connect with equipment or pipeline, during sampling, under the effect of sampling actuator piston [8], move behind the sampling piston [7], sample enters sampling pipe [1], when moving the location behind the sampling piston [7], the breach [2] of piston [7] front end makes sampling pipe [1] and quantity tube [5] conducting, and takes over [10] sealing, see Fig. 3, quantitatively piston [4] moves down, in sample suction quantity tube [5] under the effect of quantitative actuator piston [6] simultaneously; Piston [7] sample this moment under the effect of sampling actuator piston [8], when the reach location, through hole [9] is connected with sample storage jar [11], quantity tube [5], simultaneously quantitative piston [4] is under the effect of quantitative actuator piston [6], move up, sample is pressed into sample storage jar [11] through taking over [10], sees Fig. 1, sampling piston [7] and quantitative piston [4] are finished a to-and-fro movement respectively.Repeat said process, the floating seal [12] in the sample storage jar [11] raises with the sample liquid level and floats.After the interior sample size of sample storage jar [11] reached and sets collection capacity or sampling time arrival, the operation valve [13] of its below was opened, and sample enters sampling bottle [14] by sample storage jar [11], and controlling of sampling valve [13] cuts out immediately.

Claims

1, a kind of sealing automatic sampler, the sampling pipe [1] that belt lacing [3] are arranged, sampling bottle [14] and actuator piston [6], [8], it is characterized in that being equipped with in the sampling pipe [1] sampling piston [7], sampling pipe [1] is gone up relative position and is arranged with quantity tube [5], sample storage can adapter tube [10], quantitative piston [4] is equipped with in quantity tube [5] lining, sample storage can adapter tube [10] connects sample storage jar [11], sample storage jar [11] connects sampling bottle [14] through operation valve [13], sampling piston [7] front end is provided with breach [2] on one side, breach [2] direction is corresponding with quantity tube [5], the sampling corresponding quantity tube of piston [7] [5], sample storage can adapter tube [10] position is provided with through hole [9].

2, sealing automatic sampler according to claim 1 is characterized in that sample storage jar [11] lining is equipped with floating seal [12].

3, sealing automatic sampler according to claim 1 is characterized in that the operation valve [13] between sample storage jar [11] and the sampling bottle [14] is the normally closed type operation valve.