CN216377482U

CN216377482U - Ozone recycling system

Info

Publication number: CN216377482U
Application number: CN202121735281.7U
Authority: CN
Inventors: 吴天月
Original assignee: SUZHOU EVERYWHERE GAS EQUIPMENT CO Ltd
Current assignee: SUZHOU EVERYWHERE GAS EQUIPMENT CO Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-04-26
Anticipated expiration: 2031-07-28

Abstract

The utility model provides an ozone recycling system, which comprises: the device comprises a tail gas destructor, a tail gas collecting tank, a tail gas purifying device and an ozone generator; the tail gas destructor is connected with the tail gas purification device through the tail gas collection tank, the tail gas purification device is used for purifying gas from the tail gas destructor, a secondary utilization loop is formed between the tail gas purification device and the tail gas collection tank, and the tail gas purification device is further connected with the downstream ozone generator. The utility model can recycle ozone, which destroys ozone to reduce the ozone into oxygen, then carries on cooling, pressurizing and removing harmful impurity, purifies the oxygen to meet the requirement of ozone generator, then mixes with fresh oxygen to enter into the ozone generator to prepare ozone, to realize recycle.

Description

Ozone recycling system

Technical Field

The utility model relates to the technical field of tail gas treatment, in particular to an ozone recycling system.

Background

In industrial production and life, a large amount of industrial and domestic wastewater is produced. At present, the generated industrial and domestic wastewater needs to be subjected to physical, chemical and biological comprehensive treatment through corresponding water treatment processes. One of the steps in the water treatment process is the catalytic reaction of wastewater with ozone. However, the practical utilization rate of ozone in the practical process is low, and further, the ozone is wasted greatly. Therefore, it is necessary to provide a further solution to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an ozone recycling system to overcome the defects in the prior art.

In order to achieve the above object of the present invention, the present invention provides an ozone recycling system, which comprises: the device comprises a tail gas destructor, a tail gas collecting tank, a tail gas purifying device and an ozone generator;

the tail gas destructor is connected with the tail gas purification device through the tail gas collection tank, the tail gas purification device is used for purifying gas from the tail gas destructor, a secondary utilization loop is formed between the tail gas purification device and the tail gas collection tank, and the tail gas purification device is further connected with the downstream ozone generator.

As an improvement of the ozone recycling system, the bottom of the tail gas collecting tank is connected with the integrated blowdown device through a control valve.

As an improvement of the ozone recycling system of the present invention, the exhaust gas purifying apparatus includes: the device comprises a heat exchange pressurization unit, a filtering absorption unit and an oxygen purification unit;

the heat exchange pressurizing unit, the filtering and absorbing unit and the oxygen purifying unit are sequentially arranged between the tail gas collecting tank and the ozone generator, and the oxygen purifying unit is connected to the tail gas collecting tank through a pipeline.

As an improvement of the ozone recycling system, the ozone recycling system further comprises a circulating cooling water conveying pipeline of the heat exchange pressurizing unit.

As an improvement of the ozone recycling system of the present invention, the heat exchange pressurizing unit comprises: a heat exchanger, an oxygen compressor and a condenser;

the heat exchanger, the oxygen compressor and the condenser are sequentially arranged between the tail gas collecting tank and the filtering and absorbing unit, and the oxygen compressor and the condenser are connected to the tail gas collecting tank through a pipeline.

As an improvement of the ozone recycling system, a frequency converter is arranged between the tail gas collecting tank and the oxygen compressor.

As an improvement of the ozone recycling system of the present invention, the filtration and absorption unit comprises: a filter group and a harmful gas absorption tower;

the filter group comprises a plurality of filters which are arranged in series, and the plurality of filters are respectively connected to the outlet end of the bottom of the tail gas collecting tank through pipelines.

As an improvement of the ozone recycling system of the present invention, the oxygen purification unit comprises: a moisture removal adsorption tower and/or a purification adsorption tower.

As an improvement of the ozone recycling system, the ozone recycling system further comprises a pure gas buffer tank arranged between the tail gas purification device and the ozone generator.

As an improvement of the ozone recycling system of the present invention, the ozone recycling system further comprises an electrical control device, and each valve in the ozone recycling system is controlled by the electrical control device.

Compared with the prior art, the utility model has the beneficial effects that: the utility model can recycle ozone, which destroys ozone to reduce the ozone into oxygen, then carries on cooling, pressurizing and removing harmful impurity, purifies the oxygen to meet the requirement of ozone generator, then mixes with fresh oxygen to enter into the ozone generator to prepare ozone, to realize recycle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the ozone recycling system of the present invention.

Detailed Description

The present invention is described in detail below with reference to various embodiments, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should be able to make modifications and substitutions on the functions, methods, or structures of these embodiments without departing from the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an ozone recycling system, which includes: the device comprises a tail gas destructor 10, a tail gas collecting tank 20, a tail gas purifying device 30 and an ozone generator 40.

The tail gas destructor 10 is used for ozone destruction treatment to catalytically reduce ozone to oxygen. Specifically, the exhaust gas destruction device 10 incorporates a temperature raising unit and a catalytic unit. Wherein, the temperature rise unit is used for heating ozone tail gas, improves ozone tail gas's temperature in order to avoid producing the influence to the catalyst. The catalytic unit is used for catalyzing the ozone tail gas after temperature rise to enable the ozone tail gas to be decomposed into oxygen under the action of corresponding catalysts. The tail gas destructor 10 is connected to a tail gas purification apparatus 30 via a tail gas collection tank 20. The exhaust gas purification device 30 is also connected to a downstream ozone generator 40.

The tail gas collecting tank 20 is used for collecting the destroyed tail gas. Meanwhile, the bottom of the tail gas collecting tank 20 is connected to the integrated sewage drainage device 50 through a control valve.

The exhaust gas purification device 30 purifies the gas from the exhaust gas destruction device 10, and a secondary utilization circuit is formed between the exhaust gas purification device 30 and the exhaust gas collection tank 20.

Specifically, the exhaust gas purification device 30 includes: a heat exchange pressurizing unit 31, a filtering and absorbing unit 32 and an oxygen purifying unit 33. Wherein, the heat exchange pressurizing unit 31, the filtering and absorbing unit 32 and the oxygen purifying unit 33 are sequentially arranged between the tail gas collecting tank 20 and the ozone generator 40.

The heat exchange pressurizing unit 31 is used for realizing cooling, pressurizing and other treatments. The heat exchange pressurizing unit 31 includes: a heat exchanger 311, an oxygen compressor 312 and a condenser 313. Wherein, the heat exchanger 311, the oxygen compressor 312 and the condenser 313 are sequentially arranged between the tail gas collecting tank 20 and the filtering and absorbing unit 32. The heat exchanger 311 and the condenser 313 each have an inlet and an outlet for circulating cooling water. Correspondingly, the ozone recycling system also comprises a circulating cooling water conveying pipeline 60 of a heat exchanger 311 and a condenser 313.

In addition, in order to control the operating frequency of the oxygen compressor 312, a frequency converter 70 is disposed between the tail gas collecting tank 20 and the oxygen compressor 312. The oxygen compressor 312 and the condenser 313 are also connected to the tail gas collecting tank 20 through a pipeline 80, so that a secondary utilization loop between the tail gas purifying device 30 and the tail gas collecting tank 20 is formed.

The heat exchanger 311, the oxygen compressor 312 and the condenser 313 may be made of conventional products, and those skilled in the art can select the corresponding type of product and apply the product to the present embodiment in combination according to the requirement.

The filtering and absorbing unit 32 is used for removing harmful impurities in the tail gas. The filtering and absorbing unit 32 includes: a filter group 321 and a harmful gas absorption tower 322. The filter group 321 includes a plurality of filters connected in series, and the plurality of filters are respectively connected to the outlet end of the bottom of the exhaust gas collecting tank 20 through a pipeline. The harmful gas absorption tower 322 is filled with filler capable of absorbing harmful gas, so that the harmful impurities in the tail gas can be removed through two-stage purification of the filter group 321 and the harmful gas absorption tower 322. The selection of the filter group 321 and the filler in the harmful gas absorption tower 322 can be performed according to the actual situation of the harmful impurities in the tail gas.

The oxygen purification unit 33 is used for purifying oxygen to meet the requirements of the ozone generator, so that the oxygen can be conveniently mixed with fresh oxygen in the follow-up process to enter the ozone generator for preparing ozone. Specifically, the oxygen purification unit 33 includes: the number and combination mode of the moisture removal adsorption tower and/or the purification adsorption tower can be set according to the requirement. Wherein, the moisture desorption adsorption tower can further desorb the moisture contained in the oxygen, and the purification adsorption tower can further purify the oxygen through the filler contained in the purification adsorption tower.

In addition, the ozone recycling system further comprises a pure gas buffer tank 90 arranged between the tail gas purification device 30 and the ozone generator 40, and the pure gas buffer tank 90 can be used for temporarily storing redundant pure gas so as to balance the air pressure in the system. Further, a filter 100 is disposed between the pure gas buffer tank and the ozone generator 40. Thus, pure gas meeting the requirements can be sent to the downstream ozone generator 40 through the filter 90, and gas not meeting the requirements can be directly discharged after reaching the standard.

In order to control the on-off of the pipeline in the system, the ozone recycling system further comprises an electrical control device 110, and each valve on the pipeline in the ozone recycling system can be controlled by the electrical control device 110.

In conclusion, the ozone recovery device can recycle ozone, firstly destroys the ozone, catalytically reduces the ozone into oxygen, then carries out the processes of cooling, pressurizing, removing harmful impurities and the like, purifies the oxygen to the condition meeting the requirements of the ozone generator, then mixes the oxygen with fresh oxygen and enters the ozone generator to prepare the ozone, and realizes the recycling.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An ozone recycling system, comprising: the device comprises a tail gas destructor, a tail gas collecting tank, a tail gas purifying device and an ozone generator;

2. The ozone recovery system of claim 1, wherein the bottom of the off-gas collection tank is connected to the integrated blowdown device via a control valve.

3. The ozone recycling system according to claim 1, wherein the exhaust gas purifying device includes: the device comprises a heat exchange pressurization unit, a filtering absorption unit and an oxygen purification unit;

4. The ozone recycling system of claim 3, further comprising a circulating cooling water delivery line of the heat exchange pressurizing unit.

5. The ozone recycling system of claim 3, wherein the heat exchange pressurizing unit comprises: a heat exchanger, an oxygen compressor and a condenser;

6. The ozone recycling system of claim 5, wherein a frequency converter is further disposed between the tail gas collection tank and the oxygen compressor.

7. The ozone recovery system of claim 3, wherein the filtering and absorbing unit comprises: a filter group and a harmful gas absorption tower;

8. The ozone recovery system of claim 3, wherein the oxygen purification unit comprises: a moisture removal adsorption tower and/or a purification adsorption tower.

9. The ozone recycling system of claim 1 or 3, further comprising a pure gas buffer tank disposed between the tail gas purifying device and the ozone generator.

10. The ozone recovery system of claim 1 further comprising an electrical control device, wherein each valve in the ozone recovery system is controlled by the electrical control device.