CN2544270Y - Liquid online sampler - Google Patents

Abstract

The utility model discloses a liquid on-line sampling device, which consists of a flange connection tube, a shell, a bracket, a plunger, a screw rod, a handle, a sample flowing tube and a valve. The valve is arranged between the flange connection tube and the shell; the plunger takes the shape of a step; the central holes of the flange connection tube, a flange and the valve through which the plunger slides are all internal step holes which are accordance with the plunger.

Description

Liquid on-line rice sampling device

Technical field

The utility model relates to a kind of on-line sampling device, takes the liquid on-line sampling apparatus of liquid medium sample in the industrial processes such as especially a kind of suitable oil refining, chemical industry, food.

Technical background

The patent No.: ZL94231264.3 disclosed " on-line sampling device " is though the authenticity at random that guaranteed to sample, easy to operate, but also have the following disadvantages: 1 is not easy to grasp out the flow of sample when sampling, cause sample to vomit suddenly easily, and the stroke of generation adverse consequences 2 operating personnel turn screw mandrel when sampling is long, time-consuming; When closing, usually screw mandrel all can not be screwed in because of turn is time-consuming, and cause next time sampling difficulty and sample stale, inaccurate.

Summary of the invention

The purpose of this utility model is the improvement to the on-line sampling device, and a kind of short, the timesaving liquid on-line sampling apparatus of stroke that can better hold discharging flow, turn screw mandrel is provided.

The purpose of this utility model is achieved in that it is made up of flange adapter, housing, carriage, plunger, screw mandrel, handle, sample effuser, valve, described valve be flange take over and housing between.Described plunger is stepped, and the center pit of flange adapter, flange and valve that plunger is slid through within it is the interior shoulder hole that matches with it;

Therefore the utility model makes the operator can better grasp liquid outlet quantity because plunger is a staged, can shorten the stroke that sampling apparatus opens and closes; Owing to be provided with valve, can also under the pipeline running status, overhaul sampling apparatus.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment

Embodiment

With reference to Fig. 1, the utility model is to take over 2 at the flange on the on-line sampling device to pass through dress valve 7 between flange 6 and the housing 8, and they are to be connected by bolt 3, nut 4, pad 5 wafer types.Flange 6 is two-sided shape, should have good sealing property, between the flange of flange 6 and flange adapter 2 is pad 16, flange 6, valve 7 and housing 8 are pad 13 and pad 14 each other, the diameter of the center pit of valve 7 and plunger 15 matches, plunger 15 is in the center pit of valve 7, and valve 7 can adopt spherical valve or gate valve.A threaded hole of 60 ° of angle directions of center pit axis of housing 8 connects with sample effuser 12, sample effuser 12 the below be sampling receptacle 11.It is stepped that flange is taken over plunger 15 ends that slide in 2, and the center pit of flange adapter 2, flange 6 and valve 7 that plunger 15 is slid through is the interior shoulder hole that matches with it.The course of work: when the utility model uses flange is taken over 2 and be welded on the transfer line 1, during sampling, valve 7 is to put the position of often opening, turn handle 10 (counterclockwise) then, plunger 15 outwards moves under the drive of screw mandrel, when the ladder of plunger 15 during near fluid hole, the sample liquids medium flows into threaded hole and flows in the sampling receptacles 11 through sample effuser 12.Dextrorotation fixed handle 10 after the sample extraction, plunger 15 moves forward and enters packoff formation sealing pair, cut off the outflow of liquid medium, turn handle 10 all screws in the carriage 9 screw mandrel, and the liquid medium in the sampling apparatus is all pushed back in pipeline 1 or the storage pipe at this moment.If in production run, need not stop when handling the fault of sampling apparatus, pull down sample drain pipe 12 earlier, in the fluid hole of housing 8, adorn plug, make screw mandrel screw out (stop means is arranged) by the operation of sampling overall process again, valve-off 7, pull down plug, dismounting carriage 9 parts such as grade can be to the sampling apparatus place under repair.

Claims (3)

1. liquid on-line sampling apparatus, it is made up of flange adapter, housing, carriage, plunger, screw mandrel, handle, sample effuser, valve, it is characterized in that: described valve (7) is to take between (2) and the housing (8) at flange, described plunger (15) is stepped, and the center pit that the flange that plunger (15) is slid through is within it taken over (2), flange (6) and valve (7) is the interior shoulder hole that matches with it;

2. according to the described liquid on-line sampling apparatus of claim 1, it is characterized in that: the diameter of the center pit of valve (7) and plunger (15) matches.

3. liquid on-line sampling apparatus according to claim 1 and 2 is characterized in that: valve (7) is spherical valve or gate valve.