CN202802807U

CN202802807U - Thorn-shaped fractionation column with vacuum sleeve

Info

Publication number: CN202802807U
Application number: CN201220489698.4U
Authority: CN
Inventors: 刘柱
Original assignee: BEIJING HAMAMATSU PHOTONICS TECHNOLOGY Co Ltd
Current assignee: BEIJING HAMAMATSU PHOTONICS TECHNOLOGY Co Ltd
Priority date: 2012-09-19
Filing date: 2012-09-19
Publication date: 2013-03-20
Anticipated expiration: 2022-09-19

Abstract

The utility model relates to a thorn-shaped fractionation column which is used in a chemical fractionation method or a chemical fractionation device. The thorn-shaped fractionation column comprises a tubular structure column body with a thorn; a vacuum outer sleeve covers the outside of the tubular structure column body; and one end of the vacuum outer sleeve is connected with an air outlet in a sealing manner, and the other end of the vacuum outer sleeve is connected with an air inlet in a sealing manner. The fractionation column disclosed by the utility model is particularly suitable for fractionation of mixed liquid with a boiling point which is lower than an environmental temperature; and the fractionation efficiency is high and the influences caused by the environmental temperature are less.

Description

Thorn shape still with vacuum envelope

Technical field

The utility model relates to the thorn shape still of using in a kind of chemical fractional method or the device.

Background technology

When the fractionation boiling point is lower than the mixing material of environment temperature, the length of thorn shape still and the temperature of fractionation there is higher requirement.

Normally used thorn shape still can not satisfy above-mentioned requirements in the prior art, and the mode of generally taking is a plurality of stills to be coupled together use to obtain longer still, but not only can take more space like this, and still damages easily.And because cut point correspondingly improves so that the material in the still is apt to deteriorate, for inflammable, explosive, easily the liquid of self-polymeric reaction occurs, such as liquefied olefines and alkynes etc., use the danger of this still higher.

In addition, can also carry out fractionation to the lower mixing material of boiling point by the mode that reduces cut point, as using cooling water still be carried out condensation, but this mode cause in the still can't the formation temperature gradient, seriously reduced the efficient of fractionation.

Summary of the invention

For the above-mentioned deficiency of prior art, the utility model provides a kind of thorn shape still with vacuum envelope, and this still is particularly useful for the fractionation that boiling point is lower than the mixing material of environment temperature, and fractionating efficiency is high, influenced by ambient temperature less.

The technical scheme that the utility model is taked is: a kind of thorn shape still with vacuum envelope is provided, comprise barbed tubular structure cylinder, it is characterized in that: tubular structure cylinder coated outside has the vacuum jacket pipe, one end of described vacuum jacket pipe and gas outlet sealing-in, the other end and air inlet sealing-in.

The utility model adopts vacuum jacket pipe parcel tubular structure cylinder, so that environment temperature can't directly affect the inside of still during fractionation, thereby still internal temperature gradient can be set up voluntarily according to the mixing material boiling point, compare with the mode of a plurality of stills of the use of prior art or reduction cut point, influenced by ambient temperature little, fractionating efficiency is high, and safe, more save the energy.According to vitochemical fractionation standard method styrene is carried out the vacuum fractionation test, its result shows that 3 still effects of a still of the present utility model and prior art same specification are suitable.

Description of drawings

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

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in detail.

As shown in Figure 1, the utility model is to carry out an experiment in chemistry and the electric still used of small lot batch manufacture, comprises barbed tubular structure cylinder 3 and vacuum jacket pipe 2.Cylinder 3 is glass tube, and the thorn-like structure of inside stretching, extension is arranged, and every layer of thorn-like structure is provided with at least 3 root thorns, and the thorn-like structure under the thorn-like structure that one deck is horizontal and one deck are tilted to is staggered, and does not communicate in every root thorn and the pipe.The top of cylinder 3 is air inlets 1, and tail end is gas outlet 4.Vacuum jacket pipe 2 is hollow tubular structure, one end and gas outlet 4 sealing-ins, and the other end and air inlet 1 sealing-in are preferably in the tubule place sealing-in of air inlet 1.Bleeding point 5 is exhausting the vacuum rear enclosed, to guarantee vacuum jacket pipe 2 inside higher vacuum is arranged.

During work, fractionation steam enters from air inlet 1, and 3 flow through in the post, and a part of steam condensing reflux, another part steam 4 are discharged from the gas outlet.Because the vacuum heat-insulation effect of vacuum jacket pipe 2, environment temperature can't directly affect the temperature of still inside, so that the temperature in the still can be lower, the temperature conduction of each layer thorn-like structure is less, and then set up voluntarily better thermograde according to the boiling point of mixing material, the material that the makes different boiling particularly inflammable and explosive material of low boiling is better separated.

Claims

1. the thorn shape still with vacuum envelope comprises barbed tubular structure cylinder, and it is characterized in that: tubular structure cylinder coated outside has the vacuum jacket pipe, an end of described vacuum jacket pipe and gas outlet sealing-in, the other end and air inlet sealing-in.