CN1060406C

CN1060406C - High-efficient defroster

Info

Publication number: CN1060406C
Application number: CN97113349A
Authority: CN
Inventors: 蓝仁水
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-07
Filing date: 1997-07-07
Publication date: 2001-01-10
Anticipated expiration: 2017-07-07
Also published as: CN1204545A

Abstract

The present invention relates to gas-liquid separating equipment in chemical engineering, more specifically a novel demister with high efficiency. The demister is mainly composed of a partition board, an inner frame, an outer frame, an upper end board, a lower end board, demisting mediums and a liquid guiding opening. TJCW series of demisters provided by the present invention can be used for towers, gas-liquid separating tanks, evaporators, waste gas processors and compressors on aspects of removing oil from outlets, etc. Because the TJCW series of demisters fundamentally change the demisting mechanism of the traditional demister, the demisting efficiency of the demister can reach more than 99.8%, and the operating flexibility of the demister is 2 times of that of the traditional demister.

Description

High-efficient defroster

The invention belongs to the gas-liquid separation equipment in the Chemical Engineering, is a kind of high-efficient defroster specifically.

The main mesh mist eliminator that adopts before in the gas-liquid separation process.Traditional demister, removing liquid mainly is to hold back by inertia.Traditional demister adopts flush system, and gas flow direction is vertical with the tiling silk screen, and its demist mechanism as shown in Figure 2.The shortcoming of this demister is that operating flexibility is little, and gas speed is low excessively, and the mist inertia of carrying secretly is little, drifts in gas, does not collide just along with gas is taken away by gas by silk screen with the silk screen filament; Gas speed is too high, and the drop of aggegation is difficult for falling from silk screen, easily produces reentrainment, and separative efficiency is reduced.

The object of the present invention is to provide a kind of high-efficient defroster, it have simple in structure, cost is low, easy installation, demist efficient height, characteristics that operating flexibility is big.

TJCW series demister provided by the present invention mainly is made up of dividing plate, outer skeleton, inner frame, upper head plate, demist medium, bottom plate and fluid guidance port.It can be used as the demister that tower, knockout drum, evaporimeter, exhaust-gas treatment and compressor outlet remove the wet goods aspect.Because TJCW type demister has fundamentally changed the demist mechanism (as Fig. 1) of traditional demister, in use, demister dividing plate and Ta Bi combine closely, demister divided equally be two parts up and down, the side demist medium that gas passes demister the latter half enters the demister inner chamber, pass the side demist medium of demister the first half again, become Radial Flow by axial flow when making gas by demister, and become the two-stage demist from the single-stage demist of traditional demister, in demister, be provided with drain mechanism (delivery hole or catheter) in addition, reduce the liquid holdup of liquid in the demist medium under the high gas speed, prevented the reentrainment of liquid.Therefore TJCW type demister provided by the present invention has very high demist efficient, can reach more than 99.8%, and operating flexibility is 2 times of traditional demister.

Specific embodiments of the present invention is described in detail as follows with reference to accompanying drawing:

Fig. 1 is a TJCW type demister schematic diagram.

Fig. 2 is traditional demister schematic diagram.

Fig. 3 is the scheme of installation of TJCW type demister in tower or other similar devices.

Fig. 4 is a demister upper head plate vertical view.

Fig. 5 is the demister vertical view.

Fig. 6 is a demister bottom plate drain perforate schematic diagram.

Fig. 7 adorns split type demister under being.

Fig. 8 goes up dress monoblock type demister.

As shown in the figure, (1) is the tower circle, and (2) are outer skeletons, and (3) are dividing plates, (4) inner frame, and (5) are fluid guidance ports, and (6) are bottom plates, and (7) are the demist media, and (8) are upper head plates, and (9) are clamps, and (10)～(12) are respectively bolt, nut and pad.

The basic structure of TJCW type demister is to make the inner frame of definite shape earlier, again the demist medium is wound on the inner frame, fix with outer skeleton then, reconnect, bottom plate, at last dividing plate is fixed in the demister lateral surface, combine closely between outer skeleton of dividing plate and demister and the demist medium, tight, demister is combined closely with clamp, bolt, nut, pad and Ta Quan during installation.The sectional area of demister be tower section or other relevant device sectional area 40～400%.

Wherein inner frame can be made by steel bar, rod iron, shaped steel, expanded metal lath or other standard component, perhaps by skeleton and end plate cast solid up and down.

Outer skeleton can be used and the manufacturing of inner frame same material.According to designing requirement, the demist medium can be selected ripple silk net or non-ripple silk screen for use, perhaps can select other material for use, as fiber etc.The demist medium can integral body be wrapped on the inner frame, or it is wound in independent sector, is filled in then between the inside and outside skeleton.

Upper and lower end plate can be by steel plate or similar material manufacturing, and upper head plate is a whole imperforate plate, bottom plate around or middle appropriate location offer delivery hole or add catheter.

Dividing plate can be positioned at the appropriate location of demister side as the case may be.

TJCW type demister provided by the invention according to the size of relevant device, adopts monoblock type, is put into by the openend of equipment; Or adopt split typely, split is put into from the manhole of equipment.Demisting unit can be single, also can be a plurality of unit combination, and the cross section of each unit can be circle, semicircle, rectangle, trapezoidal or other form.According to the equipment concrete condition, TJCW type demister can be made into dress formula or down-mounting type structure.The demister of various versions such as Fig. 7, shown in Figure 8.

TJCW type demister can be made integral device with relevant device, as with tower in liquid distribution trough or liquid header, knockout drum etc., can save investment, make compact equipment, the convenient installation.As shown in figure 10.

Fig. 9, Figure 10, Figure 11 are the samples of TJCW type demister.Fig. 9 is split type demister, two demisting unit, and the cross section of demisting unit is half garden shape; Figure 10 is the monoblock type demister, four demisting unit, and the cross section of demisting unit is circular; Figure 11 is split type demister, five demisting unit, and the cross section of demisting unit is trapezoidal.

TJCW series demister provided by the present invention, can be used as the demister that tower, knockout drum, evaporimeter, exhaust-gas treatment and compressor outlet remove the wet goods aspect, be used to reduce the loss of valuable components, increase flux, improve the purity of component, eliminate impurity, reduce the corrosion in downstream, reduce big G﹠W and pollute.

Claims

1. high-efficient defroster, it is characterized in that it comprises equipment body (1), outer skeleton (2), dividing plate (3), inner frame (4), fluid guidance port (5), bottom plate (6), demist medium (7), upper head plate parts such as (8), demist medium (7) is wrapped on the demister inner frame (4) of definite shape, same upper head plate (8) bottom plate (6) constitutes the main body of this demister together, dividing plate (3) is combined closely with demist medium (7), and by outer skeleton (2) connection, whole demister is divided into two parts up and down, dividing plate (3) is divided into up and down two-stage with demister, closely is connected between dividing plate (3) and the equipment body (1).

2. according to claims 1 said high-efficient defroster, the lateral area that it is characterized in that said demister be tower or other relevant device sectional area 40～400%.

3. according to claims 1 said high-efficient defroster, the upper head plate (8) that it is characterized in that said demister is a whole imperforate plate; Offer delivery hole (5) around bottom plate (6) centre is airtight, perhaps be enclosed in the bottom plate centre on every side and offer delivery hole, perhaps offer catheter.

4. according to claims 1 said high-efficient defroster, the inside and outside skeleton (4), (2) that it is characterized in that said demister can be made by steel bar, rod iron, shaped steel, expanded metal lath or other standard component, and perhaps the inside and outside skeleton (4) of demister, (2) are together with end plate (8), (6) cast solid up and down.

5. according to claims 1 said high-efficient defroster, the demist medium (7) that it is characterized in that said demister can be metal or nonmetal silk screen, also can be fiber and other material.

6. according to claims 1 said high-efficient defroster, the demist medium (7) that it is characterized in that said demister can integral body be wrapped on the inner frame (4), or demist medium (7) is wound in independent parts respectively, be filled between inside and outside skeleton (4), (2).

7. according to claims 1 said high-efficient defroster, it is characterized in that being wrapped in the demist medium (7) on the inner frame (4) of said demister establish the drain passage, passage can be gone up pressurization wavy channel or other passage at demist medium (7).

8. according to claims 1 said high-efficient defroster, it is characterized in that said demister can be made into monoblock type or split type; Demisting unit can be single also can be the combination of a plurality of unit, the cross sectional shape of each unit can be forms such as circular, semicircle, trapezoidal, rectangle.

9. according to claims 1 said high-efficient defroster, it is characterized in that said demister can be made into dress formula or down-mounting type.

10. according to claims 1 said high-efficient defroster, it is characterized in that said demister can with relevant device, link to each other as the liquid distribution trough in the tower or liquid header, knockout drum etc., make corresponding integral device.