CN201389421Y

CN201389421Y - Iodine adsorber

Info

Publication number: CN201389421Y
Application number: CN200920089612U
Authority: CN
Inventors: 范向阳; 吴庆锋; 曾心耀; 夏雪; 李后军; 冯朝阳; 邹涤
Original assignee: Henan Hejing Cleaning Technology Co Ltd
Current assignee: Henan Hejing Cleaning Technology Co Ltd
Priority date: 2009-04-16
Filing date: 2009-04-16
Publication date: 2010-01-27
Anticipated expiration: 2019-04-16

Abstract

The utility model relates to an iodine adsorber and is characterized by comprising an outer frame and a plurality of carbon beds which are vertically arranged in the outer frame; all the carbon beds are parallel and arranged in parallel; a material bin which is communicated with the upper ends of various carbon beds is arranged above the carbon beds; the material bin is connected with a carbon conveying pipeline which can carry out new carbon supply to the material bin; a material hopper which is communicated with the lower ends of the carbon beds is arranged below the carbon beds; and the material hopper is provided with a carbon-discharging pipeline which can draw the active carbon. The iodine adsorber is designed according to the air quantity of the system, the inner active carbon is exchanged when the active carbon is in failure; the exchanging process is safe and convenient; and the iodine adsorber does not need to expose the inner part of the device when installing and exchanging the active carbon, can effectively prevent secondary pollution, simultaneously reduce the occupation of the whole space of the device, reduce the radioactive waste quantity when the system is retired, improve the economy, can be better suitable for market needs and is beneficial to build an saving and environment-friendly society.

Description

Iodine adsorber

Technical field

The utility model relates to nuclear field ventilation cleaning equipment, particularly relates to a kind of iodine adsorber, is mainly used in to remove radioiodine and other impurity very harmful to human body in the nuclear draft.Utilize this absorber can guarantee to export the clean quality of gas, thereby protect respective environment and personnel's safety.

Background technology

At present, mainly there are following shortcoming in the I, the II type iodine adsorber that use in the ventilating system of nuclear field:

1.I, II type iodine adsorber is that Immesion active carbon is packed into behind the metal case type container, put into respective air again and purify unit and carry out work.Therefore be required to be each I type or II type iodine adsorber designs corresponding installation framed bent and fixture again, increased system's investment, increased the radwaste amount when system is retired, strengthened the unit overall space and taken.

2. when I, the inefficacy of II type iodine adsorber, its metal case type container needs together scrap with inner active carbon, has increased the radwaste treating capacity.

3.I, when II type iodine adsorber is changed, need exposing device inside change operation.Therefore, very easily when changing, cause radioactive secondary pollution, thereby pollute respective environment, infringement staff health.

Summary of the invention

The purpose of this utility model is just at existing problem in the above-mentioned prior art and custom-designed a kind of iodine adsorber, this absorber integral body takes up room little, active carbon is changed safety, convenient, can exposing device inside, can effectively prevent the secondary pollution of radioactive substance, reduce the radwaste amount, improved security and economy.

The purpose of this utility model is achieved through the following technical solutions: the charcoal bed formation that this iodine adsorber comprises outside framework and is arranged on a plurality of vertical placements in the outside framework, each charcoal bed is parallel to each other and is arranged in parallel, above the charcoal bed, be provided with the feed bin that is connected with each charcoal bed upper end, be connected with on the feed bin and can carry out the defeated charcoal pipeline that new charcoal replenishes feed bin, below the charcoal bed, be provided with the hopper that is connected with each charcoal bed lower end, offer on the hopper active carbon can be extracted out go out the charcoal pipeline.

In the utility model, the volume of described feed bin is at least 5% of each charcoal bed cumulative volume.All be filled with active carbon in each charcoal bed.

In design technology of the present utility model, outside framework can directly be installed in the ventilating duct that purifies unit, and outside framework also can be and purify unit ventilating duct sidewall.

The operation principle and the process of this absorber are that air-flow is entered by the space between charcoal bed one side, behind the physical absorption of active carbon and the chemisorption purification filtering, is discharged by charcoal bed opposite side in the charcoal bed.

The advantage that the utility model is possessed compared to existing technology is:

1, because the metal case type container that has saved I, II type iodine adsorber with and supporting fixed structure, take thereby reduced the device overall space, arrange significant for the karyonide system of an inch of land is an inch of gold.

Only change inner active carbon when 2, iodine adsorber of the present utility model is changed active carbon, save the box-like canister that I, II type iodine adsorber need be changed simultaneously, reduced the radwaste amount, help building economizing type and environment-friendly type society.

3, this iodine adsorber is changed active carbon safety, convenience.Be different from I, II type iodine adsorber, do not need exposing device inside to change, reduced secondary pollution, more help protecting environment and personal security.

In a word, with respect to I, II type iodine adsorber, III type iodine adsorber (being the utility model) has higher security and economic performance.

Description of drawings

Fig. 1 is a structural front view of the present utility model.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the vertical view of charcoal bed part among Fig. 1.

Among the figure: 1, feed bin, 2, the charcoal bed, 3, hopper, 4, defeated charcoal pipeline, 5, go out the charcoal pipeline, 6, outside framework, 7, gas channel.

The specific embodiment

The utility model is further described below in conjunction with accompanying drawing:

As shown in Figure 1, 2, 3: in the utility model, feed bin 1 is positioned at charcoal bed 2 tops, and its volume is at least 5% of each charcoal bed total measurement (volume), and feed bin 1 is connected with defeated charcoal pipeline 4, can carry out new charcoal and replenish.

Charcoal bed 2 is positioned at feed bin 1 bottom, and the active carbon of importing from defeated charcoal pipeline can be full of each charcoal bed 2 by feed bin 1 distribution.

Hopper 3 is positioned at charcoal bed 2 bottoms and is communicated with each charcoal bed, offers out charcoal pipeline 5 on the hopper.When active carbon lost efficacy, can the active carbon in hopper 3, charcoal bed 2, the feed bin 1 be extracted out by going out charcoal pipeline 5.

Claims

1, a kind of iodine adsorber, it is characterized in that: charcoal bed (2) formation that comprises outside framework (6) and be arranged on a plurality of vertical placements in the outside framework, each charcoal bed is parallel to each other and is arranged in parallel, be provided with the feed bin (1) that is connected with each charcoal bed upper end in charcoal bed (2) top, be connected with on the feed bin (1) and can carry out the defeated charcoal pipeline (4) that new charcoal replenishes feed bin, be provided with the hopper (3) that is connected with each charcoal bed lower end in charcoal bed (2) below, offer on the hopper (3) active carbon can be extracted out go out charcoal pipeline (5).

2, iodine adsorber according to claim 1 is characterized in that: the volume of feed bin (1) is at least 5% of each charcoal bed cumulative volume.

3, iodine adsorber according to claim 1 is characterized in that: all be filled with active carbon in each charcoal bed (2).

4, iodine adsorber according to claim 1 is characterized in that: outside framework (6) directly is installed in the ventilating duct that purifies unit.

5, iodine adsorber according to claim 1 is characterized in that: outside framework (6) is and purifies unit ventilating duct sidewall.