CN215249572U - Ozone separation system for generating high-concentration ozone based on desorption ozone blowing - Google Patents
Ozone separation system for generating high-concentration ozone based on desorption ozone blowing Download PDFInfo
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- CN215249572U CN215249572U CN202121492611.4U CN202121492611U CN215249572U CN 215249572 U CN215249572 U CN 215249572U CN 202121492611 U CN202121492611 U CN 202121492611U CN 215249572 U CN215249572 U CN 215249572U
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Abstract
The utility model discloses an ozone separation system based on desorption ozone is swept formation high concentration ozone again belongs to ozone preparation technical field. The device comprises an air inlet pipeline, a plurality of adsorption towers, an exhaust pipeline, a secondary blowing pipeline and an air outlet pipeline; the air inlet pipeline is used for introducing mixed gas containing ozone; each adsorption tower comprises an adsorption tower port I and an adsorption tower port II; the port I of the adsorption tower is connected with an air inlet pipeline, and a valve is arranged on the connected pipeline; the adsorption towers at least comprise a group A adsorption tower, a group B adsorption tower and a group C adsorption tower. The utility model discloses can sweep many times the adsorption tower that needs desorption ozone, can retrieve oxygen more than 75%, promote the ozone concentration of producing gas to more than 20% under the condition of saving running cost.
Description
Technical Field
The utility model belongs to the technical field of ozone preparation, more specifically say, relate to an ozone separation system based on desorption ozone is swept formation high concentration ozone again.
Background
The ozone oxidation technology is widely applied to drinking water, municipal sewage, industrial wastewater treatment, food processing, marine product processing and the like due to the advantages of strong oxidizability, high reaction speed, no secondary pollution under normal conditions and the like, and the installed capacity is larger and larger. The ozone is generally prepared by a high-frequency discharge method, and in order to improve the discharge efficiency and prolong the service life of an ozone generator, the oxygen concentration is generally required to be more than 95 percent, and the dew point temperature is required to be lower than minus 60 ℃. Liquid oxygen with the concentration of 99.9 percent prepared by a cryogenic method or oxygen with the concentration of about 93 percent prepared by an on-site PSA and VPSA method is generally adopted as raw material gas of the ozone generator in industry. But is limited by the existing ozone generation technology, the effective utilization rate of oxygen is only about 10%, about 90% of oxygen and ozone enter the rear-end dissolved air together, the oxygen cost is greatly increased, and the air dissolving difficulty is increased.
Upon retrieval, chinese patent invention 201680091548.9 discloses a method for separating ozone from a mixture of oxygen and ozone by feeding the mixture to at least one adsorption bed containing an adsorbent material for adsorbing ozone; the adsorption bed may be one of four adsorption beds in a continuous adsorption cycle, producing ozone by recycling unadsorbed oxygen to an ozone generator with supplemental oxygen or using it as a purge gas; an external purge gas is used to desorb ozone into the consumer process; with four beds, most of the time, two beds are in adsorption mode while the other two beds are in regeneration/production mode. Although the patent can utilize unadsorbed oxygen and supplementary oxygen to sweep the ozone in the adsorption tower again, because the sweep gas itself does not contain ozone, can't improve ozone concentration, sweep gas quantity is great, and the ozone separation system in this patent is different at the different stages retrieval and utilization oxygen volume of a cycle, needs to carry out more meticulous regulation to the oxygen compressor, and ozone concentration fluctuates greatly.
Also, for example, chinese patent 201710659064.6 discloses a three-tower vacuum pressure swing adsorption oxygen generation system, where a corresponding product gas transition tank is provided corresponding to each adsorption tower, the front-stage high-oxygen-concentration portion of the product gas produced in each adsorption oxygen generation process of the adsorption tower enters a product gas buffer tank as the product gas of the oxygen generation system, the rear-stage low-oxygen-concentration portion resides in the product gas transition tank according to the gradient of the oxygen concentration produced by the adsorption tower, and when the corresponding adsorption tower is shifted to the step of increasing the pressure of the product gas, the product gas is used as the pressure-increasing gas to increase the pressure of the reflux adsorption tower. The patent utilizes the product gas in the oxygen production process as the product of the oxygen production system, improves the oxygen concentration of the product gas, the use efficiency of the adsorbent and the oxygen recovery rate of the system, but does not mention ozone and can not be applied to an ozone separation system to prepare high-concentration ozone mixed gas.
Therefore, there is a need to design an ozone separation system or method with high oxygen utilization rate and high ozone concentration in the produced gas.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
Aiming at the problems of low oxygen utilization rate, low ozone concentration in produced gas and large ozone concentration fluctuation of an ozone separation system or an ozone separation method in the prior art, the utility model provides an ozone separation system for generating high-concentration ozone based on desorption ozone blowing; the problems of low oxygen utilization rate, low ozone concentration in produced gas and large ozone concentration fluctuation are effectively solved by reasonably arranging the secondary purging pipeline, the connection relation between the secondary purging pipeline and other pipelines and the adsorption tower connected with the secondary purging pipeline.
2. Technical scheme
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
the utility model discloses an ozone separation system for generating high-concentration ozone based on desorption ozone re-blowing, which comprises an air inlet pipeline, a plurality of adsorption towers, an exhaust pipeline, a re-blowing pipeline and an air outlet pipeline; the air inlet pipeline is used for introducing mixed gas containing ozone; each adsorption tower comprises an adsorption tower port I and an adsorption tower port II; the port I of the adsorption tower is connected with an air inlet pipeline, and a valve is arranged on the connected pipeline; the adsorption towers at least comprise a group A adsorption tower, a group B adsorption tower and a group C adsorption tower; the port I of the adsorption tower in the group A of adsorption towers is connected with an air inlet pipeline, and the port II of the adsorption tower is connected with an exhaust pipeline; the adsorption tower port II of the adsorption tower in the B group of adsorption towers is connected with an exhaust pipeline, and the adsorption tower port I of the adsorption tower is connected with a secondary purging pipeline; the port II of the adsorption tower in the group C is connected with the secondary sweeping pipeline, and the port I of the adsorption tower is connected with the gas outlet pipeline; the utility model discloses in every group adsorption tower in at least include an adsorption tower.
Preferably, the adsorption column further comprises a group D adsorption column; and the port I of the adsorption tower in the group D is connected with an air outlet pipeline, and the port II of the adsorption tower can be filled with air to purge the ozone in the group D adsorption tower.
Preferably, the number of the adsorption towers is 8N, and N is more than or equal to 1.
Preferably, the adsorption tower includes a first adsorption tower, a second adsorption tower, a third adsorption tower, a fourth adsorption tower, a fifth adsorption tower, a sixth adsorption tower, a seventh adsorption tower and an eighth adsorption tower; a pipeline connecting a first adsorption tower port I of the first adsorption tower with an air inlet pipeline is provided with a first adsorption tower valve II, a pipeline connecting a second adsorption tower port I of the second adsorption tower with the air inlet pipeline is provided with a second adsorption tower valve II, a pipeline connecting a third adsorption tower port I of the third adsorption tower with the air inlet pipeline is provided with a third adsorption tower valve II, a pipeline connecting a fourth adsorption tower port I of the fourth adsorption tower with the air inlet pipeline is provided with a fourth adsorption tower valve II, a pipeline connecting a fifth adsorption tower port I of the fifth adsorption tower with the air inlet pipeline is provided with a fifth adsorption tower valve II, a pipeline connecting a sixth adsorption tower port I of the sixth adsorption tower with the air inlet pipeline is provided with a sixth adsorption tower valve II, a pipeline connecting a seventh adsorption tower port I of the seventh adsorption tower with the air inlet pipeline is provided with a seventh adsorption tower valve II, and an eighth adsorption tower valve II is arranged on a pipeline connecting the eighth adsorption tower port I of the eighth adsorption tower with the air inlet pipeline.
Preferably, the gas outlet pipeline is respectively connected with a first adsorption tower port I, a second adsorption tower port I, a third adsorption tower port I, a fourth adsorption tower port I, a fifth adsorption tower port I, a sixth adsorption tower port I, a seventh adsorption tower port I and an eighth adsorption tower port I, and the connected pipelines are respectively provided with a first adsorption tower valve III, a second adsorption tower valve III, a third adsorption tower valve III, a fourth adsorption tower valve III, a fifth adsorption tower valve III, a sixth adsorption tower valve III, a seventh adsorption tower valve III and an eighth adsorption tower valve III.
Preferably, the re-purging pipeline is respectively connected with a first adsorption tower port I, a second adsorption tower port I, a third adsorption tower port I, a fourth adsorption tower port I, a fifth adsorption tower port I, a sixth adsorption tower port I, a seventh adsorption tower port I and an eighth adsorption tower port I, and the connected pipelines are respectively provided with a first adsorption tower valve I, a second adsorption tower valve I, a third adsorption tower valve I, a fourth adsorption tower valve I, a fifth adsorption tower valve I, a sixth adsorption tower valve I, a seventh adsorption tower valve I and an eighth adsorption tower valve I; the secondary purging pipeline is respectively connected with the first adsorption tower port II, the second adsorption tower port II, the third adsorption tower port II, the fourth adsorption tower port II, the fifth adsorption tower port II, the sixth adsorption tower port II, the seventh adsorption tower port II and the eighth adsorption tower port II, and a first adsorption tower valve IV, a second adsorption tower valve IV, a third adsorption tower valve IV, a fourth adsorption tower valve IV, a fifth adsorption tower valve IV, a sixth adsorption tower valve IV, a seventh adsorption tower valve IV and an eighth adsorption tower valve IV are respectively arranged on the connected pipelines.
Preferably, the exhaust pipeline is respectively connected with a first adsorption tower port II, a second adsorption tower port II, a third adsorption tower port II, a fourth adsorption tower port II, a fifth adsorption tower port II, a sixth adsorption tower port II, a seventh adsorption tower port II and an eighth adsorption tower port II, and the connected pipelines are respectively provided with a first adsorption tower valve V, a second adsorption tower valve V, a third adsorption tower valve V, a fourth adsorption tower valve V, a fifth adsorption tower valve V, a sixth adsorption tower valve V, a seventh adsorption tower valve V and an eighth adsorption tower valve V.
Preferably, the air purifier further comprises an air pipeline, wherein the air inlet end of the air pipeline is an air inlet end; the air pipeline is provided with an air compressor, the air compressor is used for pumping air into the adsorption tower to sweep adsorbed ozone, and the air is easy to obtain and low in cost, so that the ozone in the adsorption tower is swept through the air pipeline, and the oxygen consumption can be effectively saved by utilizing air sweeping; the air pipeline is respectively connected with the first adsorption tower port II, the second adsorption tower port II, the third adsorption tower port II, the fourth adsorption tower port II, the fifth adsorption tower port II, the sixth adsorption tower port II, the seventh adsorption tower port II and the eighth adsorption tower port II, and a first adsorption tower valve VI, a second adsorption tower valve VI, a third adsorption tower valve VI, a fourth adsorption tower valve VI, a fifth adsorption tower valve VI, a sixth adsorption tower valve VI, a seventh adsorption tower valve VI and an eighth adsorption tower valve VI are arranged on the connected pipelines. However, in the prior art, a large amount of nitrogen gas remains in the adsorption tower after the air is used for purging, and then the nitrogen gas and the recycled oxygen gas can return to the ozone generator together when the subsequent adsorption step is performed, so that the concentration of the used oxygen gas and the concentration of the generated ozone gas can be reduced; and be in the utility model discloses an ozone separation system can effectively avoid this problem, and the air sweeps remaining nitrogen gas can be together supplied the rear end to use by giving vent to anger the pipeline discharge with high concentration ozone through sweeping again, has both solved the remaining problem of nitrogen gas, has guaranteed the ozone concentration of giving vent to anger again.
Preferably, the device also comprises a liquid oxygen tank and an ozone generator; the liquid oxygen tank comprises a liquid oxygen output end; the ozone generator comprises a generator input end and a generator output end, the generator input end is connected with the liquid oxygen output end through the gasifier, liquid oxygen output by the liquid oxygen output end enters the ozone generator to react after being gasified through the gasifier, and the generator output end is connected with the air inlet pipeline.
Preferably, the exhaust pipeline is connected with the input end of the generator, and an oxygen compressor is arranged on the connected pipeline; and/or the device also comprises a standby pipeline, wherein the standby pipeline connects the air inlet pipeline with the air outlet pipeline, and a standby valve is arranged on the standby pipeline; and the air outlet end of the air outlet pipeline is provided with an air outlet valve.
The utility model discloses an ozone separation method, based on the ozone separation system for generating high-concentration ozone based on desorption ozone blowing in the utility model, the circulation operation is carried out on each adsorption tower, and each circulation in the circulation operation comprises an operation I, an operation II, an operation III and an operation IV; the operation I comprises the following steps: introducing the mixed gas containing ozone into a target adsorption tower from an adsorption tower port I through an air inlet pipeline, adsorbing the ozone in the mixed gas, and allowing the discharged gas to be used for other adsorption tower operations IV; the operation II comprises the following steps: introducing gas generated by other adsorption tower operations IV into the target adsorption tower from an adsorption tower port II through a re-purging pipeline, re-purging the ozone adsorbed by the target adsorption tower operation I, and discharging the re-purged gas through a gas outlet pipeline for use; the operation III comprises the following steps: introducing air into the target adsorption tower from the port II of the adsorption tower, purging the ozone adsorbed by the operation I of the target adsorption tower, and discharging the purged outlet air for use through an air outlet pipeline; the operation IV is as follows: introducing oxygen generated by the other adsorption tower operation I into the target adsorption tower from an adsorption tower port II through an exhaust pipeline, purging the ozone adsorbed by the target adsorption tower operation I, and using the purged gas for the other adsorption tower operation II; the operation sequence of each adsorption tower in a single circulation is the same; and the operation II and the operation IV are carried out for the same time. The utility model can match the circulating operation of each adsorption tower in the ozone separation system, so that the ozone separation system is in seamless connection with the ozone separation system, and can continuously sweep the ozone in the adsorption tower again, thereby continuously producing the ozone mixed gas with higher concentration for the use of the rear end; in addition, the operation III can effectively save the amount of recycled oxygen by using air purging, and nitrogen remained in the adsorption tower after air purging can be purged by oxygen in the subsequent operation IV, and then is introduced into other adsorption towers to be desorbed through a secondary purging pipeline, namely the operation II of other adsorption towers, and finally is discharged with high-concentration ozone from the air outlet pipeline for use at the rear end; therefore, the utility model discloses an ozone generation method not only can promote the ozone concentration in the gas production through blowing again, can also blow the remaining nitrogen gas of step together discharge with the air, has guaranteed the purity of retrieval and utilization oxygen simultaneously, provides the basis for blowing in succession again and sweeping production high concentration ozone.
Preferably, the number of the adsorption towers is 8; the period of each cycle operation is T-120 s-480 s, and the time in each cycle is sequentially determined according to the time sequence
In the following procedure I,
Operation II of,
Operation III and
operation IV of (1); the start time of the single cycle operation of each adsorption tower is delayed relative to the previous adsorption tower
Preferably, the adsorption tower comprises a first adsorption tower, and the single-cycle specific operation steps of the first adsorption tower are as follows:
(1) opening a first adsorption tower valve II and a first adsorption tower valve V, closing the other valves of the first adsorption tower, and performing operation I;
(2) opening a first adsorption tower valve III and a first adsorption tower valve IV, closing the other valves of the first adsorption tower, and performing operation II;
(3) opening a first adsorption tower valve III and a first adsorption tower valve VI, closing other valves of the first adsorption tower, and performing operation III;
(4) and opening the first adsorption tower valve I and the first adsorption tower valve V, closing the other valves of the first adsorption tower, and performing operation IV. Taking the first adsorption tower as an example, the operation steps of the other adsorption towers are similar, and the main difference is that the specific valves for opening and closing the other adsorption towers are different, and the specific valves for opening and closing the other adsorption towers correspond to the valve positions of the first adsorption tower, such as: the first adsorption tower valve II corresponds to the second adsorption tower valve II, the third adsorption tower valve II, the fourth adsorption tower valve II, the fifth adsorption tower valve II, the sixth adsorption tower valve II, the seventh adsorption tower valve II and the eighth adsorption tower valve II.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an ozone separation system for generating high-concentration ozone based on desorption ozone re-blowing, which comprises an air inlet pipeline, a plurality of adsorption towers, an exhaust pipeline, a re-blowing pipeline and an air outlet pipeline; the air inlet pipeline is used for introducing mixed gas containing ozone; each adsorption tower comprises an adsorption tower port I and an adsorption tower port II; the port I of the adsorption tower is connected with an air inlet pipeline, and a valve is arranged on the connected pipeline; the adsorption towers at least comprise a group A adsorption tower, a group B adsorption tower and a group C adsorption tower; the port I of the adsorption tower in the group A of adsorption towers is connected with an air inlet pipeline, and the port II of the adsorption tower is connected with an exhaust pipeline; the adsorption tower port II of the adsorption tower in the B group of adsorption towers is connected with an exhaust pipeline, and the adsorption tower port I of the adsorption tower is connected with a secondary purging pipeline; the port II of the adsorption tower in the group C is connected with the secondary sweeping pipeline, and the port I of the adsorption tower is connected with the gas outlet pipeline; through the arrangement, the adsorption tower connected with the air inlet pipeline can adsorb the introduced ozone-containing mixed gas, the adsorbed ozone can be stored in the adsorption tower, when the adsorption tower C finishes adsorption and needs to desorb ozone, oxygen generated in the adsorption process of the adsorption tower A can be firstly utilized to sweep the ozone in the adsorption tower B through the exhaust pipeline, and the swept high-concentration ozone mixed gas further sweeps the ozone in the adsorption tower C through the secondary sweeping pipeline, so that the high-concentration ozone mixed gas blown out from the adsorption tower B can be further purified, and finally the high-concentration ozone mixed gas is discharged from the air outlet pipeline for rear-end use, thereby effectively improving the ozone concentration in the produced gas of the ozone separation system; therefore, the utility model discloses an ozone separation system can utilize the adsorption process of other adsorption towers to sweep many times the adsorption tower that needs desorption ozone, can retrieve more than 75% oxygen, promotes the ozone concentration of producing gas to more than 20% under the circumstances of saving running cost, and does not need extra vacuum pump to carry out the negative pressure desorption, has saved and has dissolved the gas cost and improved efficiency.
Drawings
FIG. 1 shows embodiment 1 of the present invention
A schematic of the operation of each adsorption column over a period of time;
FIG. 2 is a schematic diagram I of an ozone separation system of the present invention;
FIG. 3 is a schematic diagram II of the ozone separation system of the present invention;
fig. 4 is a state diagram of each adsorption tower in the present invention.
In the figure:
100. a first adsorption tower; 101. a first adsorption tower port I; 102. a first adsorption tower port II; 110. a first adsorption tower valve I; 120. a first adsorption tower valve II; 130. a first adsorption tower valve III; 140. a first adsorption tower valve IV; 150. a first adsorption tower valve V; 160. a first adsorption tower valve VI;
200. a second adsorption column; 201. a second adsorption tower port I; 202. a second adsorption tower port II; 210. a second adsorption tower valve I; 220. a second adsorption tower valve II; 230. a second adsorption tower valve III; 240. a second adsorption tower valve IV; 250. a second adsorption tower valve V; 260. a second adsorption tower valve VI;
300. a third adsorption column; 301. a third adsorption tower port I; 302. a third adsorption tower port II; 310. a third adsorption tower valve I; 320. a third adsorption tower valve II; 330. a third adsorption tower valve III; 340. a third adsorption tower valve IV; 350. a third adsorption tower valve V; 360. a third adsorption tower valve VI;
400. a fourth adsorption column; 401. a fourth adsorption tower port I; 402. a fourth adsorption tower port II; 410. a fourth adsorption tower valve I; 420. a fourth adsorption tower valve II; 430. a fourth adsorption tower valve III; 440. a fourth adsorption tower valve IV; 450. a fourth adsorption tower valve V; 460. a fourth adsorption tower valve VI;
500. a fifth adsorption column; 501. a fifth adsorption tower port I; 502. a fifth adsorption tower port II; 510. a fifth adsorption tower valve I; 520. a fifth adsorption tower valve II; 530. a fifth adsorption tower valve III; 540. a fifth adsorption tower valve IV; 550. a fifth adsorption tower valve V; 560. a fifth adsorption tower valve VI;
600. a sixth adsorption column; 601. a sixth adsorption tower port I; 602. a sixth adsorption tower port II; 610. a sixth adsorption tower valve I; 620. a sixth adsorption tower valve II; 630. a sixth adsorption tower valve III; 640. a sixth adsorption tower valve IV; 650. a sixth adsorption tower valve V; 660. a sixth adsorption tower valve VI;
700. a seventh adsorption column; 701. a port I of a seventh adsorption tower; 702. a seventh adsorption tower port II; 710. a seventh adsorption tower valve I; 720. a seventh adsorption tower valve II; 730. a seventh adsorption tower valve III; 740. a seventh adsorption tower valve IV; 750. a seventh adsorption column valve v; 760. a seventh adsorption tower valve VI;
800. an eighth adsorption column; 801. a port I of the eighth adsorption tower; 802. a port II of the eighth adsorption tower; 810. an eighth adsorption tower valve I; 820. an eighth adsorption tower valve II; 830. a eighth adsorption tower valve III; 840. an eighth adsorption tower valve IV; 850. an eighth adsorption tower valve V; 860. an eighth adsorption tower valve VI;
901. a standby pipeline; 902. an air outlet pipeline; 903. an air intake line; 904. then, blowing the pipeline; 905. an exhaust line; 906. An air line; 910. a liquid oxygen tank; 911. a liquid oxygen output end; 920. an ozone generator; 921. a generator input; 922. A generator output; 930. an oxygen compressor; 940. an air inlet port; 950. an air compressor; 960. an air outlet valve; 970. a standby valve.
Detailed Description
The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced, and in which features of the invention are identified by reference numerals. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to provide the best mode contemplated for carrying out the invention and to enable any person skilled in the art to practice the invention. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined by the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to illustrate the present state of the art and the meaning of the present development and is not intended to limit the present invention or the present application and the field of application of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present invention will be further described with reference to the following specific embodiments.
Example 1
As shown in fig. 1 to 3, the present embodiment provides an ozone separation system for generating high concentration ozone based on desorption ozone re-purge, which includes an air inlet pipeline 903, 8 adsorption towers, an exhaust pipeline 905, a re-purge pipeline 904, and an air outlet pipeline 902; the gas inlet pipeline 903 is used for introducing mixed gas containing ozone; each adsorption tower comprises an adsorption tower port I and an adsorption tower port II; the port I of the adsorption tower is connected with an air inlet pipeline 903, and a valve is arranged on the connected pipeline; the adsorption towers include a first adsorption tower 100, a second adsorption tower 200, a third adsorption tower 300, a fourth adsorption tower 400, a fifth adsorption tower 500, a sixth adsorption tower 600, a seventh adsorption tower 700 and an eighth adsorption tower 800; the adsorption towers at least comprise a group A adsorption tower, a group B adsorption tower, a group C adsorption tower and a group D adsorption tower; the port I of the adsorption tower in the group A adsorption tower is connected with an air inlet pipeline 903, and the port II of the adsorption tower is connected with an exhaust pipeline 905; the port II of the adsorption tower in the group B of adsorption towers is connected with an exhaust pipeline 905, and the port I of the adsorption tower is connected with a secondary purging pipeline 904; the port II of the adsorption tower in the group C is connected with the secondary blowing pipeline 904, and the port I of the adsorption tower is connected with the gas outlet pipeline 902; and the port I of the adsorption tower in the group D is connected with the air outlet pipeline 902, and the port II of the adsorption tower can be filled with air to blow and sweep the ozone in the adsorption tower in the group D. In this embodiment, each adsorption tower, the pipeline, and the valve are made of 316L material resistant to ozone corrosion, and a special molecular sieve capable of selectively adsorbing ozone is filled in the adsorption tower, and the molecular sieve has high stability and does not react with ozone and oxygen.
In the present embodiment, the group a adsorption column, the group B adsorption column, the group C adsorption column, and the group D adsorption column refer to adsorption columns having different connection modes or operation modes at a certain timeThe classification of the columns does not mean that the adsorption column of group A is always the adsorption column of group A at any moment; for example, as shown in FIG. 1, in the second place
In the time period, the group a of adsorption columns includes the second adsorption column 200, the third adsorption column 300, the fourth adsorption column 400 and the fifth adsorption column 500, the group B of adsorption columns includes the sixth adsorption column 600, the group C of adsorption columns includes the first adsorption column 100, and the group D of adsorption columns includes the seventh adsorption column 700 and the eighth adsorption column 800; in other periods, the 8 adsorption towers may be reclassified into A-D groups of adsorption towers, as can be seen in FIG. 4, for example, in the next step
When inside, i.e. first
In the time period, the group a of adsorption towers includes a third adsorption tower 300, a fourth adsorption tower 400, a fifth adsorption tower 500 and a sixth adsorption tower 600, the group B of adsorption towers includes a seventh adsorption tower 700, the group C of adsorption towers includes a second adsorption tower 200, and the group D of adsorption towers includes an eighth adsorption tower 800 and a first adsorption tower 100; the rest can be analogized.
In this embodiment, a pipeline connecting the first adsorption tower port i 101 of the first adsorption tower 100 and the air inlet pipeline 903 is provided with a first adsorption tower valve ii 120, a pipeline connecting the second adsorption tower port i 201 of the second adsorption tower 200 and the air inlet pipeline 903 is provided with a second adsorption tower valve ii 220, a pipeline connecting the third adsorption tower port i 301 of the third adsorption tower 300 and the air inlet pipeline 903 is provided with a third adsorption tower valve ii 320, a pipeline connecting the fourth adsorption tower port i 401 of the fourth adsorption tower 400 and the air inlet pipeline 903 is provided with a fourth adsorption tower valve ii 420, a pipeline connecting the fifth adsorption tower port i 501 of the fifth adsorption tower 500 and the air inlet pipeline 903 is provided with a fifth adsorption tower valve ii 520, a pipeline connecting the sixth adsorption tower port i 601 of the sixth adsorption tower 600 and the air inlet pipeline 903 is provided with a sixth adsorption tower valve ii 620, a seventh adsorption tower valve II 720 is arranged on a pipeline connecting the seventh adsorption tower port I701 of the seventh adsorption tower 700 with the air inlet pipeline 903, and an eighth adsorption tower valve II 820 is arranged on a pipeline connecting the eighth adsorption tower port I801 of the eighth adsorption tower 800 with the air inlet pipeline 903.
The gas outlet pipeline 902 is respectively connected with a first adsorption tower port I101, a second adsorption tower port I201, a third adsorption tower port I301, a fourth adsorption tower port I401, a fifth adsorption tower port I501, a sixth adsorption tower port I601, a seventh adsorption tower port I701 and an eighth adsorption tower port I801, and the connected pipelines are respectively provided with a first adsorption tower valve III 130, a second adsorption tower valve III 230, a third adsorption tower valve III 330, a fourth adsorption tower valve III 430, a fifth adsorption tower valve III 530, a sixth adsorption tower valve III 630, a seventh adsorption tower valve III 730 and an eighth adsorption tower valve III 830.
The blowback pipeline 904 is respectively connected with a first adsorption tower port I101, a second adsorption tower port I201, a third adsorption tower port I301, a fourth adsorption tower port I401, a fifth adsorption tower port I501, a sixth adsorption tower port I601, a seventh adsorption tower port I701 and an eighth adsorption tower port I801, and the connected pipelines are respectively provided with a first adsorption tower valve I110, a second adsorption tower valve I210, a third adsorption tower valve I310, a fourth adsorption tower valve I410, a fifth adsorption tower valve I510, a sixth adsorption tower valve I610, a seventh adsorption tower valve I710 and an eighth adsorption tower valve I810; the re-blowing pipeline 904 is respectively connected with the first adsorption tower port II 102, the second adsorption tower port II 202, the third adsorption tower port II 302, the fourth adsorption tower port II 402, the fifth adsorption tower port II 502, the sixth adsorption tower port II 602, the seventh adsorption tower port II 702 and the eighth adsorption tower port II 802, and the connected pipelines are respectively provided with a first adsorption tower valve IV 140, a second adsorption tower valve IV 240, a third adsorption tower valve IV 340, a fourth adsorption tower valve IV 440, a fifth adsorption tower valve IV 540, a sixth adsorption tower valve IV 640, a seventh adsorption tower valve IV 740 and an eighth adsorption tower valve IV 840.
The exhaust pipeline 905 is respectively connected with a first adsorption tower port II 102, a second adsorption tower port II 202, a third adsorption tower port II 302, a fourth adsorption tower port II 402, a fifth adsorption tower port II 502, a sixth adsorption tower port II 602, a seventh adsorption tower port II 702 and an eighth adsorption tower port II 802, and the connected pipelines are respectively provided with a first adsorption tower valve V150, a second adsorption tower valve V250, a third adsorption tower valve V350, a fourth adsorption tower valve V450, a fifth adsorption tower valve V550, a sixth adsorption tower valve V650, a seventh adsorption tower valve V750 and an eighth adsorption tower valve V850.
The ozone separation system also comprises an air pipeline 906, wherein the air inlet end of the air pipeline 906 is an air inlet end 940 for air purging, so that oxygen is recovered, oxygen for purging is provided for the re-purging step, in addition, the desorption air is filtered, dedusted and dried before entering the adsorption tower, and the dew point temperature reaches below-65 ℃; an air compressor 950 is arranged on the air pipeline 906, and the air compressor 950 is used for pumping air into the adsorption tower to purge adsorbed ozone; the air pipeline 906 is respectively connected with a first adsorption tower port II 102, a second adsorption tower port II 202, a third adsorption tower port II 302, a fourth adsorption tower port II 402, a fifth adsorption tower port II 502, a sixth adsorption tower port II 602, a seventh adsorption tower port II 702 and an eighth adsorption tower port II 802, and the connected pipelines are respectively provided with a first adsorption tower valve VI 160, a second adsorption tower valve VI 260, a third adsorption tower valve VI 360, a fourth adsorption tower valve VI 460, a fifth adsorption tower valve VI 560, a sixth adsorption tower valve VI 660, a seventh adsorption tower valve VI 760 and an eighth adsorption tower valve VI 860.
In addition, the ozone separation system of the present embodiment further includes a liquid oxygen tank 910 and an ozone generator 920; the liquid oxygen tank 910 comprises a liquid oxygen output 911; the ozone generator 920 comprises a generator input end 921 and a generator output end 922, the generator input end 921 is connected with the liquid oxygen output end 911 through a gasifier, and the generator output end 922 is connected with the air inlet pipeline 903; the exhaust pipeline 905 is connected with the input end 921 of the generator, and the connected pipeline is provided with an oxygen compressor 930, and an ozone destructor and an emergency discharge pipeline are arranged in front of the oxygen compressor 930. As shown in fig. 3, the system further comprises a standby pipeline 901, the standby pipeline 901 connects the air inlet pipeline 903 with the air outlet pipeline 902, and a standby valve 970 is arranged on the standby pipeline 901; an air outlet valve 960 is arranged at the air outlet end of the air outlet pipeline 902; the spare pipeline 901 can cut out the adsorption tower at any time when the system needs to be maintained, so that the original liquid oxygen system is recovered, and the continuous output of ozone is ensured.
The present embodiment also provides an ozone separation method, based on the ozone separation system for generating high-concentration ozone based on desorption ozone and re-purge in the present embodiment, performing a cycle operation on each adsorption tower, as shown in fig. 4, where the cycle operation period is T ═ 360 s; each cycle in the cycle operation comprises an operation I, an operation II, an operation III and an operation IV; here, taking the first adsorption tower 100 as an example:
(1) operation I: opening a first adsorption tower valve II 120 and a first adsorption tower valve V150, closing the rest valves of the first adsorption tower 100, introducing the mixed gas containing ozone into the first adsorption tower 100 from the adsorption tower port I through an air inlet pipeline 903, adsorbing the ozone in the mixed gas, and allowing the discharged air to be used for other adsorption tower operations IV; run time of
(2) And operation II: opening a first adsorption tower valve III 130 and a first adsorption tower valve IV 140, closing the rest valves of the first adsorption tower 100, introducing gas generated by other adsorption tower operations IV into the target adsorption tower from an adsorption tower port II through a re-purging pipeline 904, re-purging the ozone adsorbed by the target adsorption tower operation I, and discharging the re-purged gas for use through a gas outlet pipeline 902; run time of
The other adsorption tower in the step has a later operation cycle than that of the target adsorption tower
In an adsorption column ofIn this embodiment, when the first adsorption tower 100 is taken as the target adsorption tower, the other adsorption tower is the sixth adsorption tower 600;
(3) operation III: opening a first adsorption tower valve III 130 and a first adsorption tower valve VI 160, closing other valves of the first adsorption tower 100, introducing air into the first adsorption tower 100 from an adsorption tower port II, purging ozone adsorbed in the first adsorption tower 100 operation I, and discharging purged air for use through an air outlet pipeline 902; run time of
(4) Operation IV: opening a first adsorption tower valve I110 and a first adsorption tower valve V150, closing other valves of the first adsorption tower 100, introducing oxygen generated by other adsorption tower operations I into the first adsorption tower 100 from an adsorption tower port II through an exhaust pipeline 905, purging ozone adsorbed by the first adsorption tower 100 operations I, and using the purged gas for other adsorption tower operations II; run time of
The other adsorption towers in the step have a running period earlier than that of the target adsorption tower
In the present embodiment, when the first adsorption tower 100 is used as the target adsorption tower, the other adsorption tower is the fourth adsorption tower 400.
The steps (1) to (4) are only taken as an example of the first adsorption tower 100, the operation flow of the rest adsorption towers is similar, and the operation sequence of each adsorption tower in a single circulation is the same; the time of the operation II is the same as that of the operation IV; the main difference is that the start time of a single cycle operation of each adsorption tower is delayed relative to the previous adsorption tower
Therefore, if the operation times of each adsorption tower are compared, each adsorption tower includes operations I to IV, only the latterOne adsorption tower is delayed relative to the previous adsorption tower
In this embodiment, the second adsorption column (200) is a column subsequent to the first adsorption column (100), and the rest is similar, but delayed
Should be understood as a delay
Or be understood as an advance
n is any integer; if can see if the running state of 8 adsorption towers with a moment compares, all have the adsorption tower to operate II and operate IV at any moment, this demonstrates that all there is other adsorption tower operations IV to sweep the high concentration ozone mist that produces and sweep the target adsorption tower again at any moment to the operation II that utilizes the target adsorption tower produces the ozone mist of higher concentration, consequently violently watches whole time axis, the utility model discloses a continuous production high concentration ozone that sweeps again.
More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments modified, omitted, such as combinations between various embodiments, adapted changes and/or substitutions as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control. When "concentration, temperature, time, or other value or parameter is expressed as a range, preferred range, or as a range defined by a list of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, a range of 1 to 50 should be understood to include any number, combination of numbers, or subrange selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, or 50, and all fractional values between the above integers, e.g., 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, and 1.9. With respect to sub-ranges, specifically consider "nested sub-ranges" that extend from any endpoint within the range. For example, nested sub-ranges of exemplary ranges 1-50 may include 1-10, 1-20, 1-30, and 1-40 in one direction, or 50-40, 50-30, 50-20, and 50-10 in another direction. ".
Claims (10)
1. An ozone separation system for generating high-concentration ozone based on desorption ozone re-purging, which is characterized by comprising an air inlet pipeline (903), a plurality of adsorption towers, an exhaust pipeline (905), a re-purging pipeline (904) and an air outlet pipeline (902); the air inlet pipeline (903) is used for introducing mixed gas containing ozone; each adsorption tower comprises an adsorption tower port I and an adsorption tower port II; the port I of the adsorption tower is connected with an air inlet pipeline (903), and a valve is arranged on the connected pipeline;
the adsorption towers at least comprise a group A adsorption tower, a group B adsorption tower and a group C adsorption tower; the port I of the adsorption tower in the group A of adsorption towers is connected with an air inlet pipeline (903), and the port II of the adsorption tower is connected with an exhaust pipeline (905); the port II of the adsorption tower in the adsorption tower group B is connected with an exhaust pipeline (905), and the port I of the adsorption tower is connected with a re-purging pipeline (904); and the port II of the adsorption tower in the adsorption tower group C is connected with the secondary blowing pipeline (904), and the port I of the adsorption tower is connected with the gas outlet pipeline (902).
2. The system of claim 1, wherein the adsorption column further comprises a group D adsorption columns; and the port I of the adsorption tower in the group D is connected with an air outlet pipeline (902), and the port II of the adsorption tower can be filled with air to blow and sweep the ozone in the adsorption tower in the group D.
3. The ozone separation system for generating high-concentration ozone based on desorption ozone re-purging as claimed in claim 1, wherein the number of the adsorption towers is 8N, and N is more than or equal to 1.
4. The system for separating ozone based on desorption ozone re-purge to generate high concentration ozone as claimed in claim 1, wherein the adsorption tower comprises a first adsorption tower (100), a second adsorption tower (200), a third adsorption tower (300), a fourth adsorption tower (400), a fifth adsorption tower (500), a sixth adsorption tower (600), a seventh adsorption tower (700) and an eighth adsorption tower (800); a first adsorption tower valve II (120) is arranged on a pipeline connected with a gas inlet pipeline (903) and a first adsorption tower port I (101) of the first adsorption tower (100), a second adsorption tower valve II (220) is arranged on a pipeline connected with the gas inlet pipeline (903) and a second adsorption tower port I (201) of the second adsorption tower (200), a third adsorption tower valve II (320) is arranged on a pipeline connected with the gas inlet pipeline (903) and a third adsorption tower port I (301) of the third adsorption tower (300), a fourth adsorption tower valve II (420) is arranged on a pipeline connected with the gas inlet pipeline (903) and a fourth adsorption tower port I (401) of the fourth adsorption tower (400), a fifth adsorption tower valve II (520) is arranged on a pipeline connected with the gas inlet pipeline (903) and a fifth adsorption tower port I (501) of the fifth adsorption tower (500), a sixth adsorption tower port (601) of the sixth adsorption tower (600) and a pipeline connected with the gas inlet pipeline (903) are provided with a fifth adsorption tower valve II (520), and a fourth adsorption tower valve II (601) is arranged on a pipeline connected with the gas inlet pipeline (903) and a fourth adsorption tower port I (601) of the sixth adsorption tower (600) And a sixth adsorption tower valve II (620), wherein a seventh adsorption tower valve II (720) is arranged on a pipeline connecting the seventh adsorption tower port I (701) of the seventh adsorption tower (700) with the air inlet pipeline (903), and an eighth adsorption tower valve II (820) is arranged on a pipeline connecting the eighth adsorption tower port I (801) of the eighth adsorption tower (800) with the air inlet pipeline (903).
5. The ozone separation system of claim 4, wherein the ozone separation system generates ozone with a high concentration based on desorption ozone and re-purge, it is characterized in that the gas outlet pipeline (902) is respectively connected with a first adsorption tower port I (101), a second adsorption tower port I (201), a third adsorption tower port I (301), a fourth adsorption tower port I (401), a fifth adsorption tower port I (501), a sixth adsorption tower port I (601), a seventh adsorption tower port I (701) and an eighth adsorption tower port I (801), and a first adsorption tower valve III (130), a second adsorption tower valve III (230), a third adsorption tower valve III (330), a fourth adsorption tower valve III (430), a fifth adsorption tower valve III (530), a sixth adsorption tower valve III (630), a seventh adsorption tower valve III (730) and an eighth adsorption tower valve III (830) are respectively arranged on the connected pipelines.
6. The ozone separation system of claim 4, wherein the ozone separation system generates ozone with a high concentration based on desorption ozone and re-purge, it is characterized in that the re-purging pipeline (904) is respectively connected with a first adsorption tower port I (101), a second adsorption tower port I (201), a third adsorption tower port I (301), a fourth adsorption tower port I (401), a fifth adsorption tower port I (501), a sixth adsorption tower port I (601), a seventh adsorption tower port I (701) and an eighth adsorption tower port I (801), and the connected pipelines are respectively provided with a first adsorption tower valve I (110), a second adsorption tower valve I (210), a third adsorption tower valve I (310), a fourth adsorption tower valve I (410), a fifth adsorption tower valve I (510), a sixth adsorption tower valve I (610), a seventh adsorption tower valve I (710) and an eighth adsorption tower valve I (810);
the secondary purging pipeline (904) is respectively connected with the first adsorption tower port II (102), the second adsorption tower port II (202), the third adsorption tower port II (302), the fourth adsorption tower port II (402), the fifth adsorption tower port II (502), the sixth adsorption tower port II (602), the seventh adsorption tower port II (702) and the eighth adsorption tower port II (802), and the connected pipelines are respectively provided with a first adsorption tower valve IV (140), a second adsorption tower valve IV (240), a third adsorption tower valve IV (340), a fourth adsorption tower valve IV (440), a fifth adsorption tower valve IV (540), a sixth adsorption tower valve IV (640), a seventh adsorption tower valve IV (740) and an eighth adsorption tower valve IV (840).
7. The ozone separation system of claim 4, wherein the ozone separation system generates ozone with a high concentration based on desorption ozone and re-purge, it is characterized in that the exhaust pipeline (905) is respectively connected with a first adsorption tower port II (102), a second adsorption tower port II (202), a third adsorption tower port II (302), a fourth adsorption tower port II (402), a fifth adsorption tower port II (502), a sixth adsorption tower port II (602), a seventh adsorption tower port II (702) and an eighth adsorption tower port II (802), and the connected pipelines are respectively provided with a first adsorption tower valve V (150), a second adsorption tower valve V (250), a third adsorption tower valve V (350), a fourth adsorption tower valve V (450), a fifth adsorption tower valve V (550), a sixth adsorption tower valve V (650), a seventh adsorption tower valve V (750) and an eighth adsorption tower valve V (850).
8. The ozone separation system for generating high-concentration ozone based on desorption ozone re-purging as claimed in claim 4, further comprising an air pipeline (906), wherein the air inlet end of the air pipeline (906) is an air inlet end (940); an air compressor (950) is arranged on the air pipeline (906), and the air compressor (950) is used for pumping air into the adsorption tower to purge adsorbed ozone; the air pipeline (906) is respectively connected with the first adsorption tower port II (102), the second adsorption tower port II (202), the third adsorption tower port II (302), the fourth adsorption tower port II (402), the fifth adsorption tower port II (502), the sixth adsorption tower port II (602), the seventh adsorption tower port II (702) and the eighth adsorption tower port II (802), and the connected pipelines are respectively provided with a first adsorption tower valve VI (160), a second adsorption tower valve VI (260), a third adsorption tower valve VI (360), a fourth adsorption tower valve VI (460), a fifth adsorption tower valve VI (560), a sixth adsorption tower valve VI (660), a seventh adsorption tower valve VI (760) and an eighth adsorption tower valve VI (860).
9. The ozone separation system for generating high-concentration ozone based on desorption ozone re-purging as claimed in any one of claims 1 to 8, further comprising a liquid oxygen tank (910) and an ozone generator (920); the liquid oxygen tank (910) comprises a liquid oxygen output end (911); ozone generator (920) is including generator input (921) and generator output (922), generator input (921) links to each other with liquid oxygen output (911) through the vaporizer, generator output (922) link to each other with air inlet pipe way (903).
10. The ozone separation system for generating high-concentration ozone based on desorption ozone re-purging as claimed in claim 9, wherein the exhaust pipeline (905) is connected with the input end (921) of the generator, and an oxygen compressor (930) is arranged on the connected pipeline;
and/or the device also comprises a standby pipeline (901), the standby pipeline (901) connects the air inlet pipeline (903) with the air outlet pipeline (902), and a standby valve (970) is arranged on the standby pipeline (901); an air outlet valve (960) is arranged at the air outlet end of the air outlet pipeline (902).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113501503A (en) * | 2021-07-01 | 2021-10-15 | 光大水务科技发展（南京）有限公司 | Ozone separation system and method for generating high-concentration ozone based on desorption ozone re-purging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113501503A (en) * | 2021-07-01 | 2021-10-15 | 光大水务科技发展（南京）有限公司 | Ozone separation system and method for generating high-concentration ozone based on desorption ozone re-purging |
| CN113501503B (en) * | 2021-07-01 | 2024-04-02 | 光大水务科技发展（南京）有限公司 | Ozone separation system and method for generating high-concentration ozone based on desorption ozone reblowing |
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