CN217134010U

CN217134010U - Three-stage nuclear waste liquid purifying equipment

Info

Publication number: CN217134010U
Application number: CN202122959950.5U
Authority: CN
Inventors: 李伟峰; 朱海宇; 邹小祥; 刘育; 王明亮
Original assignee: Kunshan Three Dimensional Heat Exchanger Co ltd
Current assignee: Kunshan Three Dimensional Heat Exchanger Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-08-05
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a tertiary nuclear waste liquid equipment that purifies, install the inner chamber of shell body the ripple packing layer reaches the silk screen demister layer, just the shower head is located the ripple packing layer with in the middle of the silk screen demister layer to remove the demister layer through this ripple packing layer, shower head and silk screen and realize tertiary purification to nuclear waste steam, reach 100% filtration, cooling and cleaning performance, both reduced remaining of impurity and radioactive substance, guarantee the coefficient of the purification that lasts, the pollution to the air that significantly reduces.

Description

Three-stage nuclear waste liquid purifying equipment

Technical Field

The utility model relates to a tertiary nuclear waste liquid equipment that purifies especially relates to a nuclear waste water treatment's tertiary nuclear waste liquid equipment that purifies.

Background

Nuclear power plants produce a large amount of radioactive waste liquids containing boron and the like, such as process waste liquids, chemical waste liquids, coolant waste liquids and the like, during normal operation or under accident conditions and maintenance operations. If the radioactive waste liquid is directly discharged, serious harm is caused to the environment, and the waste liquid treatment method commonly used in the nuclear power plant at present adopts a common evaporation process to treat the waste liquid.

The prior art has the following defects: the waste liquid steam separated by flash evaporation and purification for one time still has a large amount of fog drops and fog foam, so that the collection and discharge efficiency of the final non-condensable gas is influenced; and entrainment of foam fog drops easily increases equipment corrosion and influences the service life of the equipment.

Therefore, it is desirable to provide a new three-stage nuclear waste liquid purification device to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a purify and simple structure's tertiary nuclear waste liquid equipment of purifying many times.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a three-stage nuclear waste liquid purifying device comprises an outer shell with an inner cavity, a spray header, a corrugated packing layer and a wire mesh demister layer, wherein the corrugated packing layer and the wire mesh demister layer are arranged in the inner cavity of the outer shell; the shell body has the gas outlet that is located the upper end and is located the steam inlet of downside, and this steam inlet is located the downside of corrugated packing layer, the gas outlet is located the upside on silk screen demister layer, and the shower head is located corrugated packing layer with in the middle of the silk screen demister layer.

In a preferred embodiment, the outer housing has a liquid discharge port at a lower end.

In a preferred embodiment, the corrugated packing layer is provided with a plurality of voids for facilitating liquid penetration and vapor penetration of the showerhead.

In a preferred embodiment, the wire mesh demister layer comprises a de-misted wire mat.

In a preferred embodiment, the voids of the corrugated packing layer are larger than the voids of the wire mesh demister layer.

In a preferred embodiment, the tertiary purified nuclear waste liquid device has a scope mounted on an outer housing.

In a preferred embodiment, the showerhead is umbrella shaped.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a will install the inner chamber of shell body the ripple packing layer reaches the silk screen demister layer, just the shower head is located the ripple packing layer with in the middle of the silk screen demister layer to realize tertiary purification to nuclear waste steam through this ripple packing layer, shower head and silk screen demister layer, reach 100% filtration, cooling and washing, both reduced remaining of impurity and radioactive substance, guarantee the purification coefficient that lasts, discharge again and go into in the atmosphere, the pollution to the air that significantly reduces.

Drawings

Fig. 1 is a schematic diagram of a three-stage nuclear waste liquid purifying device in an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Likewise, "a pair" and the like do not denote a limitation of quantity, but rather denote the presence of at least one of the pair. "plurality" or "a plurality" means two or more. Unless otherwise indicated, the terms "front," "back," "lower," and/or "upper row" and the like are used for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" and its derivatives, when used in conjunction with the word "comprising" and "comprises", are intended to indicate that the element or object listed under "comprises" and its derivatives, and not to exclude other elements or objects. "connect" and like terms are not limited to physical or mechanical connections and may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, a three-stage nuclear waste liquid purifying apparatus 100 according to an embodiment of the present invention includes an outer casing 10 having an inner cavity, a shower head 20, a corrugated packing layer 30 installed in the inner cavity of the outer casing 10, a wire mesh demister layer 40, and a sight glass 50 installed on the outer casing 10, wherein the sight glass 50 facilitates an operator to monitor a water level in the inner cavity of the outer casing 10 so as to adjust the water level height.

The outer shell 10 is provided with an air outlet 12 at the upper end, a steam inlet 11 at the lower side and a liquid outlet 13 at the lower end, the steam inlet 11 is located at the lower side of the corrugated packing layer 30, the air outlet 12 is located at the upper side of the wire mesh demister layer 40, and the spray head 20 is located between the corrugated packing layer 30 and the wire mesh demister layer 40.

The corrugated packing layer 30 is provided with a plurality of gaps, so that liquid of the spray header 20 can permeate and steam of the steam inlet 11 can permeate upwards conveniently; the wire mesh demister layer 40 comprises a wire mat for removing mist; and the clearance of the corrugated filler layer 30 is larger than that of the wire mesh demister layer 30, so that further purification is realized and the emission standard is met. The spray header 20 is umbrella-shaped, increases the contact area of the spray liquid to the nuclear waste steam, and provides a large-scale cleaning effect.

The utility model discloses an install the inner chamber of shell body 10 the ripple packing layer 30 and the silk screen demister layer 40, and the shower head 20 is located the ripple packing layer 30 with the silk screen demister layer 40 is middle, so when nuclear waste steam from above-mentioned steam inlet 11 input the inner chamber of shell body 10, of course, usually heat nuclear waste water through firing equipment, form steam, then send into the shell body 10 through above-mentioned steam inlet 11, because the reason that nuclear waste steam temperature is high, can rise after getting into the inner chamber, and get into in the space of ripple packing layer 30, in order to carry out the purification treatment of first time to nuclear waste steam; the spray header 20 sprays liquid, which is water in this embodiment, to wash and clean the nuclear waste steam after penetrating through the corrugated packing layer 30 again, so as to purify the nuclear waste steam for the second time; certainly, when nuclear waste steam permeates the space of corrugated packing layer 30, the water that the upper layer flowed in also can dilute nuclear waste steam to take away nuclear waste steam's impurity, together flow into the lower extreme of the inner chamber of shell body 10, this nuclear waste steam that is cooled down by water and purifies is called secondary steam, when this secondary steam continues up, can form the mist with water, and get into silk screen demister layer 40, because silk screen demister layer 40's silk pad can be got rid of secondary steam formation back mist, is called the third level and purifies, the harmful substance emission of the greatly reduced nuclear waste steam, thereby realize tertiary purification to nuclear waste steam, reach 100% filtration, cooling and washing, both reduced impurity and radioactive substance's residue, guaranteed the coefficient of continuous purification, discharge in the atmosphere again, the pollution to the air that significantly reduces.

In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the content of the specification should still belong to the scope covered by the present invention.

Claims

1. The utility model provides a tertiary nuclear waste liquid equipment that purifies which characterized in that: comprises an outer shell with an inner cavity, a spray header, a corrugated packing layer and a wire mesh demister layer, wherein the corrugated packing layer and the wire mesh demister layer are arranged in the inner cavity of the outer shell; the shell body has the gas outlet that is located the upper end and is located the steam inlet of downside, and this steam inlet is located the downside of corrugated packing layer, the gas outlet is located the upside on silk screen demister layer, and the shower head is located corrugated packing layer with in the middle of the silk screen demister layer.

2. The three-stage nuclear waste liquid purification apparatus according to claim 1, wherein: the outer housing has a liquid discharge port at a lower end.

3. The three-stage nuclear waste liquid purification apparatus according to claim 1, wherein: the corrugated packing layer is provided with a plurality of gaps which are convenient for the liquid permeation and the vapor permeation of the spray header.

4. The three-stage nuclear waste liquid purification apparatus as claimed in claim 3, wherein: the wire mesh demister layer comprises a wire mat for removing mist.

5. The three-stage nuclear waste liquid purification apparatus according to claim 4, wherein: the gaps of the corrugated filler layer are larger than those of the wire mesh demister layer.

6. The three-stage nuclear waste liquid purification apparatus according to claim 1, wherein: the tertiary purification nuclear waste liquid equipment is provided with a peep hole arranged on the outer shell.

7. The three-stage nuclear waste liquid purification apparatus according to claim 1, wherein: the spray header is umbrella-shaped.