CN2274322Y

CN2274322Y - Foam removing device for evaporimeter

Info

Publication number: CN2274322Y
Application number: CN 96243023
Authority: CN
Inventors: 何庆霖; 葛东方
Original assignee: SHAGONG CHEMICAL-MACHINERING FACTORY ZHANGJIAGANG CITY
Current assignee: SHAGONG CHEMICAL-MACHINERING FACTORY ZHANGJIAGANG CITY
Priority date: 1996-10-31
Filing date: 1996-10-31
Publication date: 1998-02-11
Anticipated expiration: 2006-10-31

Abstract

The utility model relates to a foam removing device for evaporators, comprising a housing 1, a foam removing plate 2 is fixedly arranged on an inner wall of the housing 1, the foam removing plate 2 is provided with a plurality of regularly arranged holes, and the foam removing plate 2 is provided with a plurality of layers. The utility model has the advantages of simple structure, convenient installation and maintenance, long service life, good foam removing effect and stable operation, so the utility model is suitable for separating liquid from secondary steam generated in evaporator operation and is suitable for removing foam and separation liquid from grass type pulp black liquor in paper mills.

Description

The evaporimeter Despumation device

The utility model relates to a kind of Despumation device that is used for handling evaporimeter indirect steam liquid.

During evaporator operation, carry a large amount of liquid in the indirect steam secretly, because these liquid have certain viscosity, so, produce with a large amount of foams, though in the separation chamber, the liquid in the indirect steam has been carried out separating treatment, but for useful product or the pollution condensed fluid of avoiding damage, reduce the liquid of carrying secretly in the steam, also must Despumation device be set at steam outlet, this Despumation device adopts stainless steel cloth usually.Evaporimeter is at evaporating liquid, especially during the careless plasmoid black liquor in paper mill, because black liquor closes silicon amount height, many, saponified many, the easily foulings of impurity, when the indirect steam that evaporimeter produces attends by a large amount of foams by stainless steel cloth, stainless steel wire Netease is full by impurity such as fiber knot, stop up the silk screen mesh, under the corrosiveness of steam pressure difference and black liquor, silk screen becomes fragment, the obstruction circulating pump that falls down that has, next effect heating element heater has been stopped up in being taken out of by indirect steam of having, and has had a strong impact on the normal operation of evaporimeter.

The purpose of this utility model is to provide a kind of impurity to pass through easily, can bear big pressure reduction, the evaporimeter Despumation device of reliable operation.

For realizing the purpose of this utility model, a kind of evaporimeter Despumation device comprises shell, and defoaming plate is fixedly mounted on the inwall of shell, has the hole that several rules is arranged on the defoaming plate, and defoaming plate is provided with several layers.

The utility model has the advantages that: simple in structure, installation and maintenance are convenient; Corrosion-resistant, long service life; Foam removal is effective, working stability.

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

Fig. 1 is the front view of the utility model evaporimeter Despumation device;

Fig. 2 is the vertical view of the utility model evaporimeter Despumation device;

Fig. 3 is the front view of another embodiment of the utility model evaporimeter Despumation device;

Fig. 4 is the vertical view of another embodiment of the utility model evaporimeter Despumation device.

Embodiment one, as shown in Figure 1, 2, shell 1 is arranged on the steam outlet of evaporimeter, and defoaming plate 2 is a surface plate, forms by two sections, be coupled to each other with certain angle between two sections, two outsides of defoaming plate 2 are fixedly mounted on the shell 1, and defoaming plate 2 has three layers, between layer and the layer spacing are arranged, have the small sircle hole that several rules is arranged on the defoaming plate 2, the aperture is between the 7-10 millimeter.

Embodiment two, and shown in Fig. 3,4, shell 1 is arranged on the steam outlet of evaporimeter, defoaming plate 2 is an arc, and both sides are fixedly mounted on the shell 1, and defoaming plate 2 has three layers, between layer and the layer spacing is arranged, have the small sircle hole that several rules is arranged on the defoaming plate 2, the aperture is between the 7-10 millimeter.

The number of plies of defoaming plate 2 is many more, and the foam removal effect is good more, but the flow resistance of steam is also big more, and the number of plies of defoaming plate 2 settings is advisable at the 3-5 layer usually.When defoaming plate 2 adopts the defoaming plate 2 on plane, can adopt the defoaming plate 2 of monoblock, also defoaming plate 2 can be can be made into two sections or plurality of sections, but defoaming plate 2 level when mounted is installed in the shell 1, but foam removal effect like this is the poorest, be the foam removal effect of increase defoaming plate 2, but defoaming plate 2 monoblocks tilts to be installed in the shell 1, also two sections or plurality of sections defoaming plate 2 can be coupled to each other and be folded into certain angle and be installed in the shell 1; In addition, defoaming plate 2 is adopting curved surface defoaming plate 2, adopts curved surface defoaming plate 2 can increase the foam removal effective area of defoaming plate 2 effectively, but same curved surface defoaming plate 2 is level or be mounted obliquely within the shell 1 also, and also can be made into two sections or plurality of sections, but curved slab processing is difficult, cost is higher.Hole on the defoaming plate 2 can be split into circular port, also can be split into the hole of other shapes such as elongated hole, rectangular opening or ellipse.

Adopt the defoaming plate 2 of this orifice-plate type, in the foam removal process, when the big quantity of fluid of carrying secretly in the indirect steam after separating, part steam drives foam and enters Despumation device, 2 pairs of foams of defoaming plate produce broken bubble and barrier effect, and a part of liquid is stopped that by ground floor defoaming plate 2 back flows down along wooden partition in the indirect steam, and another part liquid then is connected into the second layer, the 3rd layer of defoaming plate with steam, so repeat, the big quantity of fluid in the steam is removed down by defoaming plate 2.Because Despumation device has adopted defoaming plate 2, the intensity height of the strength ratio silk screen of defoaming plate 2, defoaming plate 2 is not fragile, simultaneously, defoaming plate 2 is thicker, is difficult for being corroded, especially have some apertures on the defoaming plate 2, these apertures are bigger than the hole of silk screen, and the hole is difficult for blocked; In addition, defoaming plate 2 is provided with several layers, has improved the foam removal effect of Despumation device like this.

Separating liquid the indirect steam that the utility model produces when being applicable to from evaporator operation is particularly useful for the foam removal and the separating liquid therefrom of the careless plasmoid black liquor in paper mill.

Claims

1, a kind of evaporimeter Despumation device comprises shell 1, it is characterized in that: defoaming plate 2 is fixedly mounted on the inwall of shell 1, has the hole that several rules is arranged on the defoaming plate 2, and defoaming plate 2 is provided with several layers.

2, a kind of evaporimeter Despumation device according to claim 1 is characterized in that: described defoaming plate 2 is surface plate, and defoaming plate 2 is mounted obliquely within on the inwall of shell 1.

3, a kind of evaporimeter Despumation device according to claim 2, it is characterized in that: the defoaming plate 2 on described plane, defoaming plate 2 is two sections compositions, and two sections defoaming plates 2 connect mutually by edges of boards with certain included angle, and other edges of boards of defoaming plate 2 are installed on the inwall of shell 1.

4, a kind of evaporimeter Despumation device according to claim 1 is characterized in that: described defoaming plate 2 is curved slab, and defoaming plate 2 is installed on the inwall of shell 1.

5, according to claim 1,2,3 or 4 described a kind of evaporimeter Despumation devices, it is characterized in that: described defoaming plate 2 is the 2-8 layer.

6, according to claim 1,2,3 or 4 described a kind of evaporimeter Despumation devices, it is characterized in that: the hole of offering on the described defoaming plate 2, the aperture is at the 7-10 millimeter.