CN212492313U - Based on ozone tail gas processing system is used in sewage treatment plant - Google Patents
Based on ozone tail gas processing system is used in sewage treatment plant Download PDFInfo
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- CN212492313U CN212492313U CN202020770138.0U CN202020770138U CN212492313U CN 212492313 U CN212492313 U CN 212492313U CN 202020770138 U CN202020770138 U CN 202020770138U CN 212492313 U CN212492313 U CN 212492313U
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Abstract
An ozone tail gas treatment system based on a sewage treatment plant comprises at least one group of ozone tail gas treatment pipelines, wherein each ozone tail gas treatment pipeline is provided with a gas-liquid phase separation unit and an ozone tail gas destructor, the inlet end of each gas-liquid phase separation unit is connected into an ozone contact tank, and the ozone tail gas destructor is connected with the outlet end of each gas-liquid phase separation unit; a heating unit disposed between an inlet end of the gas-liquid phase separation unit and an outlet end of the gas-liquid phase separation unit; at least one group of negative pressure operation units which are arranged at the top of the tank body and used for the negative pressure operation of the ozone contact tank, wherein each negative pressure operation unit at least has two breather valves with inlet ends positioned in the ozone contact tank; the negative pressure operation unit is provided with two, and improvement to a certain extent is by whether alarm lamp work judges the interior liquid level situation of ozone contact tank, reducible ozone contact tank sewage inflow when the alarm lamp lights, reduce its operating pressure, its structural design is reasonable, ozone tail gas treatment is effectual.
Description
Technical Field
The utility model belongs to the technical field of the water treatment technique and specifically relates to a based on ozone tail gas processing system is used in sewage treatment plant.
Background
In recent years, with the development of industry, new problems have arisen in water treatment and water pollution control. As one of effective advanced wastewater treatment methods, ozone treatment of wastewater has a series of advantages of strong oxidation capacity, high reaction speed, convenient use, no secondary pollution and the like, and is valued by people.
In an ozone tail gas treatment system required by a sewage treatment plant at present, two sets of ozone tail gas destructors with the treatment capacity of 8.8N/h are adopted, corresponding to two sets of oxygen sources of 20kg/h ozone generators, and under the condition that the ozone generation capacity is about 8kg/h, the ozone contact tank periphery and the tank body taste are large. A large amount of water enters the ozone tail gas destructor, a catalyst is invalid, residual ozone cannot be effectively decomposed, the tail gas from the ozone tail gas destructor has a large taste, and a large amount of water is discharged from the tail gas. The concentration of ozone dispersed into the air can also be greater if the ozone is operating at full power. The overall system efficiency is low and the ozone gas spills over is a serious hazard.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to prior art not enough, provide one kind based on ozone tail gas processing system is used in sewage treatment plant.
The to-be-solved technical problem of the utility model is realized through the following technical scheme, include
At least one group of ozone tail gas treatment pipelines, which are provided with a gas-liquid phase separation unit with an inlet end connected into the ozone contact tank and an ozone tail gas destructor connected with an outlet end of the gas-liquid phase separation unit;
a heating unit disposed between an inlet end of the gas-liquid phase separation unit and an outlet end of the gas-liquid phase separation unit;
at least one group of negative pressure operation units which are arranged at the top of the tank body and used for the negative pressure operation of the ozone contact tank, and each negative pressure operation unit at least comprises two breather valves with inlet ends positioned in the ozone contact tank.
The technical problem to be solved by the utility model can also be realized by the following technical proposal that the gas-liquid phase separation unit comprises,
a demister fixedly arranged on the outer wall of the top of the ozone contact tank and an inlet end pipe of the demister are connected into the top of the ozone contact tank;
the ozone tail gas destructor comprises a water separator, a liquid outlet end pipe of the water separator, an ozone contact pool, a gas outlet end pipe of the ozone contact pool, a tail gas inlet pipe of the ozone contact pool, a tail gas outlet pipe of the ozone contact pool, a tail gas inlet pipe of the ozone contact pool.
The to-be-solved technical problem of the utility model can also be realized through following technical scheme, above an based on ozone tail gas processing system is used in sewage treatment plant, be connected with the hydrops calandria that is equipped with the through valve on the pipeline between defroster exit end and catch water entrance point, the exit end of hydrops calandria is connected to in the ozone contact pond.
The technical problem to be solved by the utility model can also be realized by the following technical proposal that the ozone tail gas treatment system for the sewage treatment plant comprises a heating unit,
a primary heating water jacket installed on the pipeline between the outlet end of the demister and the inlet end of the steam-water separator;
the secondary heating water jacket is arranged on a pipeline between the outlet end of the steam-water separator and the inlet end of the ozone tail gas destructor;
a heater fixedly arranged on the outer wall of the top of the ozone contact tank;
the outlet end of the heater, the inlet end of the primary heating water jacket, the outlet end of the primary heating water jacket, the inlet end of the secondary heating water jacket, the outlet end of the secondary heating water jacket and the inlet end of the heater are sequentially connected through pipes.
The to-be-solved technical problem of the utility model can also be realized through following technical scheme, above an based on ozone tail gas processing system is used in sewage treatment plant, ozone tail gas treatment pipeline is provided with the exit end of the ozone tail gas destructor in two sets of, two sets of ozone tail gas treatment pipeline and communicates on a tee bend through the pipeline.
The technical problem to be solved by the utility model can also be realized by the following technical proposal that the ozone tail gas treatment system for the sewage treatment plant comprises a negative pressure operation unit,
the first breather valve is arranged on the outer wall of the top of the ozone contact tank, and the inlet end pipe of the first breather valve is connected into the tank body;
a second breather valve arranged on the outer wall of the top of the ozone contact tank and beside the first breather valve, wherein an inlet end pipe of the second breather valve is connected into the tank body, and the length of a pipeline connected to the inlet end of the second breather valve is twice of the length of a pipeline connected to the inlet end of the first breather valve;
the ozone contact tank comprises an accommodating box fixedly arranged on the inner side wall of the ozone contact tank, a cavity with the top surface communicated with a pipeline connected with a first breather valve is arranged in the accommodating box, a floating plate is arranged in the cavity, a light touch switch which can be pressed by the floating plate in a floating state when the liquid level in the ozone contact tank rises is fixedly arranged on the inner wall of the cavity above the floating plate, and a plurality of holes are also formed in the side surface and the bottom surface of the cavity;
the alarm lamp is fixedly arranged on the outer wall of the top of the ozone contact pool and is controlled to be turned on or off by the tact switch.
The negative pressure operation units are provided with two negative pressure operation units and two negative pressure operation units which are respectively arranged on two sides of the outer wall of the top of the ozone contact tank.
Compared with the prior art, the utility model has the advantages that:
(1) the gas-liquid phase separation unit in the ozone tail gas treatment pipeline can be used for dewatering the ozone tail gas for two times, the dewatered ozone tail gas can be better treated by the ozone tail gas destructor, and liquid is prevented from entering the ozone tail gas destructor to a certain extent to influence the ozone tail gas treatment effect;
(2) the heating unit can heat the ozone tail gas subjected to primary dewatering and secondary dewatering, so that the ozone tail gas destructor can better treat the ozone tail gas, and micro water vapor in the heated ozone tail gas can be gasified to a certain extent and enters the ozone tail gas destructor to be treated through a pipeline;
(3) the negative pressure operation unit can maintain the air pressure in the ozone contact pool under the negative pressure state, set up the breather valve by oneself and make the gas that gets into in the ozone contact pool through the breather valve can solve the ascending problem of liquid level because of negative pressure leads to in the ozone contact pool, all be provided with two breather valves in every negative pressure operation unit, thereby liquid level does not cross the cavity and makes the floating plate touch the light touch switch thereby trigger warning light power supply work circuit return circuit and make the work of alarm lamp light in the ozone contact pool, the negative pressure operation unit is provided with two, whether improvement in a certain extent is judged the interior liquid level situation of ozone contact pool by the work of alarm lamp, reducible ozone contact pool sewage inflow when the alarm lamp lights, reduce its operating pressure, its structural design is reasonable, ozone tail gas treatment effect is good.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the cavity of the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.
Example 1, referring to FIG. 1, an ozone-based tail gas treatment system for a sewage treatment plant comprises
At least one group of ozone tail gas treatment pipelines, which are provided with a gas-liquid phase separation unit with an inlet end connected into the ozone contact tank 1 and an ozone tail gas destructor 2 connected with an outlet end of the gas-liquid phase separation unit;
a heating unit disposed between an inlet end of the gas-liquid phase separation unit and an outlet end of the gas-liquid phase separation unit;
at least one group of negative pressure operation units which are arranged at the top of the tank body and are used for the negative pressure operation of the ozone contact tank 1, and each negative pressure operation unit at least has two breather valves with inlet ends positioned in the ozone contact tank 1.
In example 1, the gas-liquid phase separation unit is only used for separating the gas-liquid phase in the ozone tail gas, for example, the water vapor in the ozone tail gas is treated, the water vapor is left in the pipeline and flows automatically to the ozone contact tank 1 or the deposition liquid flows automatically to the ozone contact tank 1 through the straight-through valve, which solves the technical problem that the ozone tail gas destructor 2 for destroying the ozone tail gas in the prior art has poor treatment effect when treating the ozone tail gas in a gas-liquid mixed state, so that the gas-liquid separation is performed through the conventional demister and steam-water separator in the prior art.
Example 2, the ozone-based tail gas treatment system for a sewage treatment plant according to example 1, the gas-liquid phase separation unit comprises,
a demister 3 fixedly arranged on the outer wall of the top of the ozone contact tank 1 and an inlet end pipe of the demister are connected into the top of the ozone contact tank 1;
the ozone tail gas destructor is fixedly installed on the outer wall of the top of the ozone contact pool 1, an inlet end pipe is connected to a steam-water separator 4 on the outlet end of the demister 3, a liquid outlet end pipe of the steam-water separator 4 is connected into the ozone contact pool 1, and a gas outlet end pipe is connected to the inlet end of the ozone tail gas destructor 2. Wherein, the demister 3 and the steam-water separator 4 can be selected according to the volume of the ozone contact tank 1 and the ozone amount supplementing rate, so the problem of type selection of the demister 3 and the steam-water separator 4 is not repeated.
Embodiment 3, the ozone tail gas processing system for sewage treatment plant that embodiment 2 said, be connected with hydrops calandria 6 that is equipped with through valve 5 on the pipeline between demister 3 exit end and catch water 4 entrance point, the exit end of hydrops calandria 6 is connected to in ozone contact pond 1. The effusion drain pipe 6 is only used for automatically flowing effusion in the pipeline part to the ozone contact tank 1 through the straight-through valve 5.
In the embodiment 3, the straight-through valve 5 is used to drain the accumulated liquid in the accumulated liquid discharge pipe 6, the straight-through valve 5 can be manually opened to discharge the accumulated liquid, but there are defects at this time, for example, at the moment of opening the straight-through valve 5, the gas in the ozone contact tank 1 will enter the pipeline, but at this time, a small amount of gas-liquid phase will be heated by the first heating water jacket and the second heating water jacket, and will still be treated by the ozone tail gas destructor 2, and the opening time can be controlled within 1min, so that the whole ozone tail gas treatment will not be affected even if the ozone tail gas of the gas-liquid phase enters the pipeline, in this scheme, because the straight-through valve 5 needs to be opened regularly, a contact type liquid level sensor, which is equipped with a controller such as plc controller and the like capable of receiving its liquid level electrical signal, can be installed in the pipeline, and the use and the degree of the contact type liquid level, the means for detecting the liquid level in the pipeline by using the contact type liquid level sensor is also common knowledge, so the specific selection and the using method principle of the contact type liquid level sensor are not repeated.
Example 4, the ozone-based tail gas treatment system for sewage treatment plant of example 3, wherein the heating unit comprises,
a primary heating water jacket 7 arranged on a pipeline between the outlet end of the demister 3 and the inlet end of the steam-water separator 4;
a secondary heating water jacket 8 arranged on a pipeline between the outlet end of the steam-water separator 4 and the inlet end of the ozone tail gas destructor 2;
a heater 9 fixedly arranged on the outer wall of the top of the ozone contact tank 1;
the outlet end of the heater 9, the inlet end of the primary heating water jacket 7, the outlet end of the primary heating water jacket 7, the inlet end of the secondary heating water jacket 8, the outlet end of the secondary heating water jacket 8 and the inlet end of the heater 9 are sequentially connected through pipes. The primary heating water jacket 7 and the secondary heating water jacket 8 can adopt hollow cylinders with the middle parts communicated and arranged, the hollow cylinders are provided with water inlets and water outlets, the hollow cylinders are sleeved on the water pipes, the cross sections of the hollow cylinders are in the shape of a circle, the hollow cylinders are only designed for heating the pipe walls, gas in the pipe walls is heated to a certain extent, the model specifications of the heaters 9 are selected according to the length of the heated pipelines, the hot water heating temperature of the heaters 9 can be set to be 55-70 ℃, so that even if the temperature of hot water is reduced when the hot water passes through the first heating water jacket and the second heating water jacket, the temperature is reduced, the pipelines are locally heated during the temperature reduction period, and the integral treatment effect of the ozone tail gas destructor 2 on the ozone tail gas is not influenced.
Embodiment 5, embodiment 4 the ozone tail gas treatment system based on sewage treatment plant, wherein the ozone tail gas treatment pipeline is provided with two sets or two sets of ozone tail gas treatment pipelines, and the outlet ends of the ozone tail gas destructors 2 in the ozone tail gas treatment pipelines are communicated with a three-way joint 10 through pipelines.
In embodiment 5, after the treated ozone tail gas enters the three-way joint 10, an exhaust pipe may be externally connected to another outlet of the three-way joint for gas discharge.
Example 6, referring to fig. 2, examples 1 to 5 of an ozone-based off-gas treatment system for a wastewater treatment plant, the negative pressure operation unit comprises,
a first breather valve 11 arranged on the outer wall of the top of the ozone contact tank 1, and an inlet end pipe of the first breather valve are connected into the tank body;
a second breather valve 12 arranged on the outer wall of the top of the ozone contact tank 1 and beside the first breather valve 11, and an inlet end pipe of the second breather valve 12 are connected into the tank body, and the length of a pipeline connected to the inlet end of the second breather valve 12 is twice of that of a pipeline connected to the inlet end of the first breather valve 11;
the ozone contact tank comprises an accommodating box 13 fixedly arranged on the inner side wall of the ozone contact tank 1, a cavity with the top surface communicated with a pipeline connected with a first breather valve 11 is arranged in the accommodating box, a floating plate 14 is arranged in the cavity, a light touch switch 15 which can be pressed by the floating plate 14 in a floating state when the liquid level in the ozone contact tank 1 rises is fixedly arranged on the inner wall of the cavity above the floating plate 14, and a plurality of holes 16 are formed in the side surface and the bottom surface of the cavity;
and a warning lamp 17 which is fixedly arranged on the outer wall of the top of the ozone contact tank 1 and is controlled to be turned on or off by a tact switch 15. The cross section of the accommodating box 13 is arranged in a circular shape; the cross section of the floating plate 14 is arranged in a circular shape; the alarm lamp 17 can be selected according to the requirement, the power supply can be supplied by an external circuit, and the power supply circuit of the tact switch 15 extends to the outer wall of the ozone contact tank 1 through the inner wall of the contact tank; the breather valve is equipped with two, can to a certain extent contact the more efficient adjustment of the negative pressure in the pond 1 to ozone.
Embodiment 7, an ozone tail gas treatment system for sewage treatment plant as described in embodiment 6, wherein two negative pressure operation units are respectively installed on two sides of the outer wall of the top of the ozone contact tank 1.
When the ozone tail gas treatment system is used for carrying out ozone tail gas treatment, ozone tail gas enters a demister 3 and a steam-water separator 4 through pipelines for carrying out water removal twice, liquid can automatically flow into an ozone contact tank 1 through a pipeline connected to the inlet end of the demister 3 or through opening a straight-through valve 5, ozone tail gas after gas-liquid phase separation enters an ozone tail gas destructor 2 for treatment, and then is discharged through a pipeline externally connected to a tee joint 10;
particularly, as the ozone tank body is a closed tank body, when sewage conveying and sewage output are carried out, the inside of the tank body can be in a micro-negative pressure state, when the liquid level in the tank body rises due to overhigh negative pressure, a breather valve is usually adopted in the prior art to carry out air inlet, namely, negative pressure operation to balance the inside of the tank body, namely, the inside pressure of the ozone contact tank 1 so as to balance the liquid level, but sometimes the breather valve can be damaged or the work efficiency of the breather valve is overhigh so that the liquid enters the ozone tail gas destructor 2 to cause poor ozone tail gas treatment effect, so that a negative pressure operation unit is adopted in the ozone tank body;
the first breather valve 11 of two breather valves and second breather valve 12 promptly, the inlet end pipeline of these two breather valves all is located the liquid level top (it is located liquid level top which kind of distance can dash into ozone volume and sewage treatment volume according to the ozone cell body and can set up by oneself), hold box 13 and be submerged by the liquid level when 11 inlet end upper tube ends of first breather valve, liquid enters into to the cavity and floods the cavity back through a plurality of holes 16 promptly, it floats and presses light touch switch 15 to be located the floating plate 14 come-up that holds in box 13 this moment, make alarm lamp 17 work flicker, the staff can carry out the later stage to the breather valve and overhaul or reduce the sewage admission volume in the ozone contact pool 1 can, and float the back when floating plate 14, cover the pipeline of connecting on the first breather valve 11, reduce in the liquid inflow this pipeline.
Claims (7)
1. The utility model provides a based on ozone tail gas processing system is used in sewage treatment plant, includes ozone contact tank, its characterized in that: comprises that
At least one group of ozone tail gas treatment pipelines, which are provided with a gas-liquid phase separation unit with an inlet end connected into the ozone contact tank and an ozone tail gas destructor connected with an outlet end of the gas-liquid phase separation unit;
a heating unit disposed between an inlet end of the gas-liquid phase separation unit and an outlet end of the gas-liquid phase separation unit;
at least one group of negative pressure operation units which are arranged at the top of the tank body and used for the negative pressure operation of the ozone contact tank, and each negative pressure operation unit at least comprises two breather valves with inlet ends positioned in the ozone contact tank.
2. The ozone-based tail gas treatment system for the sewage treatment plant according to claim 1, wherein: the gas-liquid phase separation unit comprises a gas-liquid phase separation unit,
a demister fixedly arranged on the outer wall of the top of the ozone contact tank and an inlet end pipe of the demister are connected into the top of the ozone contact tank;
the ozone tail gas destructor comprises a water separator, a liquid outlet end pipe of the water separator, an ozone contact pool, a gas outlet end pipe of the ozone contact pool, a tail gas inlet pipe of the ozone contact pool, a tail gas outlet pipe of the ozone contact pool, a tail gas inlet pipe of the ozone contact pool.
3. The ozone-based tail gas treatment system for the sewage treatment plant according to claim 2, wherein: the pipeline between the outlet end of the demister and the inlet end of the steam-water separator is connected with a liquid accumulation calandria with a straight-through valve, and the outlet end of the liquid accumulation calandria is connected into the ozone contact pool.
4. The ozone-based tail gas treatment system for the sewage treatment plant according to claim 3, wherein: the heating unit comprises a heating pipe,
a primary heating water jacket installed on the pipeline between the outlet end of the demister and the inlet end of the steam-water separator;
the secondary heating water jacket is arranged on a pipeline between the outlet end of the steam-water separator and the inlet end of the ozone tail gas destructor;
a heater fixedly arranged on the outer wall of the top of the ozone contact tank;
the outlet end of the heater, the inlet end of the primary heating water jacket, the outlet end of the primary heating water jacket, the inlet end of the secondary heating water jacket, the outlet end of the secondary heating water jacket and the inlet end of the heater are sequentially connected through pipes.
5. The ozone-based tail gas treatment system for the sewage treatment plant according to claim 4, wherein: the ozone tail gas treatment pipeline is provided with two groups or two groups of ozone tail gas treatment pipelines, and the outlet ends of the ozone tail gas destructors in the two groups of ozone tail gas treatment pipelines are communicated with a tee joint through pipelines.
6. The ozone-based tail gas treatment system for the sewage treatment plant according to any one of claims 1 to 5, wherein: the negative pressure operation unit includes a negative pressure operation unit,
the first breather valve is arranged on the outer wall of the top of the ozone contact tank, and the inlet end pipe of the first breather valve is connected into the tank body;
a second breather valve arranged on the outer wall of the top of the ozone contact tank and beside the first breather valve, wherein an inlet end pipe of the second breather valve is connected into the tank body, and the length of a pipeline connected to the inlet end of the second breather valve is twice of the length of a pipeline connected to the inlet end of the first breather valve;
the ozone contact tank comprises an accommodating box fixedly arranged on the inner side wall of the ozone contact tank, a cavity with the top surface communicated with a pipeline connected with a first breather valve is arranged in the accommodating box, a floating plate is arranged in the cavity, a light touch switch which can be pressed by the floating plate in a floating state when the liquid level in the ozone contact tank rises is fixedly arranged on the inner wall of the cavity above the floating plate, and a plurality of holes are also formed in the side surface and the bottom surface of the cavity;
the alarm lamp is fixedly arranged on the outer wall of the top of the ozone contact pool and is controlled to be turned on or off by the tact switch.
7. The ozone-based tail gas treatment system for the sewage treatment plant according to claim 6, wherein: the negative pressure operation units are provided with two negative pressure operation units and two negative pressure operation units which are respectively arranged on two sides of the outer wall of the top of the ozone contact tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020770138.0U CN212492313U (en) | 2020-05-12 | 2020-05-12 | Based on ozone tail gas processing system is used in sewage treatment plant |
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| CN202020770138.0U CN212492313U (en) | 2020-05-12 | 2020-05-12 | Based on ozone tail gas processing system is used in sewage treatment plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307564A (en) * | 2021-12-17 | 2022-04-12 | 苏州晶拓半导体科技有限公司 | Ozone water tail gas treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307564A (en) * | 2021-12-17 | 2022-04-12 | 苏州晶拓半导体科技有限公司 | Ozone water tail gas treatment system |
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