CN110902739A - Biological sewage inactivation system and control method thereof - Google Patents
Biological sewage inactivation system and control method thereof Download PDFInfo
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- CN110902739A CN110902739A CN201911060323.9A CN201911060323A CN110902739A CN 110902739 A CN110902739 A CN 110902739A CN 201911060323 A CN201911060323 A CN 201911060323A CN 110902739 A CN110902739 A CN 110902739A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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Abstract
The invention discloses a biological sewage inactivation system and a control method thereof, wherein the sewage inactivation system comprises a sewage collection tank, a first inactivation tank, a second inactivation tank and a control system, the sewage feeding, inactivation, cooling and pollution discharging processes of the first inactivation tank and the second inactivation tank are automatically controlled by the control system, and the inactivation is carried out by simultaneously operating the two inactivation tanks, so that the efficiency of the whole biological sewage inactivation system is high, in the inactivation process, sewage in the inactivation tanks is stirred by a stirring device, the full inactivation is ensured, the operation process of the whole biological sewage inactivation system can be automatically carried out by adopting the method, the flexibility is strong, the automation of the whole process is realized, and the working efficiency is improved; in addition, through proper liquid level meter model selection, the influence of dirt on the sensitivity of the liquid level meter after the liquid level meter is used for a period of time is avoided, and the accuracy of liquid level control is ensured, so that sewage cannot overflow to pollute the environment.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a biological sewage inactivation system and a control method thereof.
Background
At present, in pharmaceutical factories such as vaccines and biological agents, pharmaceutical factories using cell culture, food factories, blood preparation factories, and the like, a large amount of biological wastewater is generated in the course of experiments and production, and the biological wastewater contains a large amount of impurities harmful to the environment such as bacteria, proteins, and cells, and the environmental environment is affected by directly discharging untreated biological wastewater. Therefore, in order to prevent the infected bacteria, proteins and cells from being discharged with the wastewater, the biological wastewater is subjected to inactivation treatment before being discharged.
Most of the prior methods adopt chemical agents added into a storage tank or an inactivation tank for inactivation, the adoption of a chemical agent method is not only at the manual operation level, but also has lower working efficiency, and the chemical agent method needs to add chemical agents into the wastewater, so the addition of the chemical agents can cause secondary pollution of the wastewater; and the system for inactivating by adopting the inactivation tank has low automation degree, insufficient inactivation and low flexibility, and cannot be operated according to actual conditions.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a biological sewage inactivation system and a control method thereof, so as to ensure that biological sewage is flexibly and efficiently inactivated, and further avoid the pollution of the biological sewage to the environment.
The purpose of the invention is realized by adopting the following technical scheme:
a biological sewage inactivation system comprises a sewage collection tank, a first inactivation tank and a second inactivation tank, the sewage collecting tank is communicated with a main sewage inlet pipe, the main sewage inlet pipe is communicated with a first sewage inlet pipe and a second sewage inlet pipe, the first sewage inlet pipe is communicated with the first inactivation tank, the second sewage inlet pipe is communicated with the second inactivation tank, the bottom of the first inactivation tank is communicated with a first sewage discharge pipe, the bottom of the second inactivation tank is communicated with a second sewage discharge pipe, the main sewage inlet pipe is provided with a water pump for pumping the biological sewage in the sewage collecting tank into the first inactivation tank and the second inactivation tank, the sewage inactivation system also comprises a control system, the first sewage inlet pipe is provided with a first sewage inlet pneumatic ball valve, a second sewage inlet pneumatic ball valve is arranged on the second sewage inlet pipe, and each sewage inlet pneumatic ball valve is controlled by the control system;
the first sewage discharge pipe is provided with a first sewage discharge pneumatic ball valve, the second sewage discharge pipe is provided with a second sewage discharge pneumatic ball valve, and each sewage discharge pneumatic ball valve is controlled by the control system;
the sewage collecting tank is provided with a radar type liquid level sensor which is used for detecting the liquid level height in the sewage collecting tank and feeding back a signal to the control system;
the sewage collecting tank is also provided with a first radio frequency switch which is used for prompting that the liquid level in the sewage collecting tank reaches a set value and feeding back a signal to the control system;
the first inactivation tank is provided with a first differential pressure type liquid level sensor which is used for detecting the liquid level height in the first inactivation tank and feeding back a signal to the control system;
the first inactivation tank is also provided with a second radio frequency switch which is used for prompting that the liquid level in the first inactivation tank reaches a set value and feeding back a signal to the control system;
the first inactivation tank is sleeved with a first jacket, the first jacket is communicated with a first cooling water inlet pipe, the first cooling water inlet pipe is provided with a first water inlet pneumatic valve, the first jacket is also communicated with a first cooling water outlet pipe, the first cooling water outlet pipe is provided with a first water outlet pneumatic valve, and the first water inlet pneumatic valve and the first water outlet pneumatic valve are both controlled by a control system;
the first inactivation tank is also provided with a first temperature sensor which is used for detecting the temperature of the liquid in the first inactivation tank and feeding back a signal to the control system;
the first inactivation tank is also provided with a first stirring device, and the first stirring device is controlled by a control system;
the first inactivation tank is communicated with a first steam inlet pipe, a first steam inlet pneumatic ball valve is arranged on the first steam inlet pipe and used for controlling steam to enter the first inactivation tank, and the first steam inlet pneumatic ball valve is controlled by a control system;
the first inactivation tank is communicated with a first compressed air inlet pipe, a first compressed air inlet pneumatic ball valve is arranged on the first compressed air inlet pipe and used for controlling compressed air to enter the first inactivation tank, and the first compressed air inlet pneumatic ball valve is controlled by a control system;
the second inactivation tank is provided with a second differential pressure type liquid level sensor which is used for detecting the liquid level height in the second inactivation tank and feeding back a signal to the control system;
the second inactivation tank is sleeved with a second jacket, the second jacket is communicated with a second cooling water inlet pipe, a second water inlet pneumatic valve II is arranged on the second cooling water inlet pipe, the second jacket is also communicated with a second cooling water outlet pipe, a second water outlet pneumatic valve II is arranged on the second cooling water outlet pipe, and the second water inlet pneumatic valve II and the second water outlet pneumatic valve II are both controlled by a control system;
the second inactivation tank is also provided with a second temperature sensor which is used for detecting the temperature of the liquid in the second inactivation tank and feeding back a signal to the control system;
the second inactivation tank is also provided with a third radio frequency switch for prompting that the liquid level in the second inactivation tank reaches a set value and feeding back a signal to the control system;
the second inactivation tank is also provided with a second stirring device, and the second stirring device is controlled by the control system;
the second inactivation tank is communicated with a second steam inlet pipe, a second steam inlet pneumatic ball valve is arranged on the second steam inlet pipe and used for controlling steam to enter the second inactivation tank, and the second steam inlet pneumatic ball valve is controlled by the control system;
the second deactivation jar intercommunication has the second to advance compressed air pipe, the second is advanced to be provided with into compressed air pneumatic ball valve two on the compressed air pipe for control compressed air gets into in the second deactivation jar, just advance compressed air pneumatic ball valve two and receive control system's control.
A control method of a biological sewage inactivation system comprises the following steps:
(1) starting the system, and collecting a liquid level signal of the sewage collection tank, a liquid level signal and a temperature signal of the first inactivation tank and the second inactivation tank by the control system at the moment;
(2) according to the collected liquid level signal of the sewage collecting tank, carrying out sewage conveying;
the biological sewage discharged in the production process is discharged into a sewage collecting tank, when the liquid level of the sewage collecting tank rises to a set liquid level value, a first radio frequency switch is triggered to feed back a signal to a control system, and the control system controls a water pump to start to convey the biological sewage in the sewage collecting tank into a first inactivation tank and a second inactivation tank;
(3) respectively and independently stirring the sewage in the first inactivation tank and the second inactivation tank according to the collected liquid level signals of the first inactivation tank and the second inactivation tank;
when the liquid level of the first inactivation tank rises to a set liquid level value, triggering a second radio frequency switch to feed back a signal to the control system, closing a valve of the first sewage inlet pneumatic ball valve, starting the first stirring device to stir the sewage in the first inactivation tank, and simultaneously opening a valve of the first steam inlet pneumatic ball valve to enable steam to enter the first inactivation tank for inactivation;
when the liquid level of the second inactivation tank rises to the set liquid level value, triggering a third radio frequency switch to feed back a signal to the control system, closing a valve of the second sewage inlet pneumatic ball valve, starting a second stirring device to stir the sewage in the second inactivation tank, and simultaneously opening a valve of the second steam inlet pneumatic ball valve to enable steam to enter the second inactivation tank for inactivation;
when the first inactivation tank and the second inactivation tank both enter the inactivation state, the water pump stops working;
(4) according to the collected temperature signals of the first inactivation tank and the second inactivation tank, the inactivation of the first inactivation tank and the inactivation of the second inactivation tank are respectively and independently executed;
when the sewage in the first inactivation tank is heated to 110 ℃ by steam, a first temperature sensor feeds back a signal to the control system, a valve of a steam inlet pneumatic ball valve I is closed, the first inactivation tank enters an inactivation heat-preservation state, the temperature is kept at 110 ℃ and the constant temperature is kept for 40 minutes;
when the sewage in the second inactivation tank is heated to 110 ℃ by steam, a second temperature sensor feeds back a signal to the control system, a valve of the steam inlet pneumatic ball valve II is closed, the second inactivation tank enters an inactivation heat preservation state, the temperature is kept at 110 ℃ and the constant temperature is kept for 40 minutes;
(5) after the constant temperature is finished, the control system carries out cooling of the first inactivation tank and the second inactivation tank;
after the constant temperature state of the first inactivation tank is finished, a valve of a first inlet pneumatic valve is opened, cooling water enters the first interlayer from a first cooling water inlet pipe to cool the first inactivation tank, when the temperature is cooled to 50 ℃, the valve of a first outlet pneumatic valve is opened, and the cooling water is discharged from a first cooling water outlet pipe;
after the constant temperature state of the second inactivation tank is finished, the valve of the water inlet pneumatic valve II is opened, cooling water enters the second interlayer from the second cooling water inlet pipe to cool the second inactivation tank, when the temperature is cooled to 50 ℃, the valve of the water outlet pneumatic valve II is opened, and the cooling water is discharged from the second cooling water outlet pipe;
(6) after cooling is finished, the control system executes pollution discharge of the first inactivation tank and the second inactivation tank;
after the first inactivation tank is cooled, opening a valve of a first blowdown pneumatic ball valve, simultaneously opening a valve of a first compressed air pneumatic ball valve, and accelerating the discharge of sewage in the first inactivation tank by introducing compressed air into the first inactivation tank;
after the second inactivation tank is cooled, the valve of the second blowdown pneumatic ball valve is opened, the valve of the second compressed air pneumatic ball valve is opened simultaneously, and the discharge of sewage in the second inactivation tank is accelerated by introducing compressed air into the second inactivation tank.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the two inactivation tanks simultaneously operate to inactivate, so that the efficiency of the whole biological sewage inactivation system is high, in the inactivation process, the sewage in the inactivation tanks is stirred by the stirring device, the full inactivation is ensured, and the operation process of the whole biological sewage inactivation system can be automatically performed by adopting the method, so that the flexibility is strong, the automation of the whole process is realized, and the working efficiency is improved; in addition, through proper liquid level meter model selection, the influence of dirt on the sensitivity of the liquid level meter after the liquid level meter is used for a period of time is avoided, and the accuracy of liquid level control is ensured, so that sewage cannot overflow to pollute the environment.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a sewage collection tank; 10. radar-type level sensors; 11. a first radio frequency switch; 2. a first inactivation tank; 20. a first jacket; 200. a first cooling water inlet pipe; 2000. a first water inlet pneumatic valve; 201. a first cooling water outlet pipe; 2010. a water outlet pneumatic valve I; 21. a second radio frequency switch; 22. a first differential pressure type liquid level sensor; 23. a first temperature sensor; 24. a first stirring device; 3. a second inactivation tank; 30. a second jacket; 300. a second cooling water inlet pipe; 3000. a second water inlet pneumatic valve; 301. a second cooling water outlet pipe; 3010. a water outlet pneumatic valve II; 31. a third radio frequency switch; 32. a second differential pressure type liquid level sensor; 33. a second temperature sensor; 34. a second stirring device; 35. a second sewage draining pipe; 350. a second blow-off pneumatic ball valve; 4. a main sewage inlet pipe; 40. a water pump; 41. a first sewage inlet pipe; 410. a first sewage inlet pneumatic ball valve; 42. a second sewage inlet pipe; 420. a second sewage inlet pneumatic ball valve; 5. a first compressed air inlet pipe; 50. feeding compressed air into the first pneumatic ball valve; 6. a second compressed air inlet pipe; 60. feeding compressed air into the pneumatic ball valve II; 7. a first steam inlet pipe; 70. a steam inlet pneumatic ball valve I; 8. a first drain pipe; 80. a first blow-off pneumatic ball valve; 9. a second steam inlet pipe; 90. and a steam inlet pneumatic ball valve II.
Detailed Description
The present invention will be described with reference to the accompanying drawings and the detailed description, and it should be noted that, in the following description, various embodiments or technical features may be arbitrarily combined to form a new embodiment without conflict.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The implementation mode is as follows:
as shown in fig. 1, the present invention shows a biological sewage inactivation system, which includes a sewage collection tank 1, a first inactivation tank 2 and a second inactivation tank 3, wherein the sewage collection tank 1 is communicated with a main sewage inlet pipe 4, the main sewage inlet pipe 4 is communicated with a first sewage inlet pipe 41 and a second sewage inlet pipe 42, the first sewage inlet pipe 41 is communicated with the first inactivation tank 2, the second sewage inlet pipe 42 is communicated with the second inactivation tank 3, the bottom of the first inactivation tank 2 is communicated with a first sewage outlet pipe 8, the bottom of the second inactivation tank 3 is communicated with a second sewage outlet pipe 35, and the first sewage outlet pipe 8 and the second sewage outlet pipe 35 are respectively arranged at the bottoms of the first inactivation tank 2 and the second inactivation tank 3 for facilitating sewage discharge; be provided with on the main sewage pipe 4 and be used for with the biological sewage suction of sewage collection tank 1 the water pump 40 of first inactivation jar 2, second inactivation jar 3, carry the biological sewage of sewage collection tank 1 through starting water pump 40 in first inactivation jar 2 and the second inactivation jar 3 promptly, it needs to explain that the operating condition of first inactivation jar 2 and second inactivation jar 3 is independent.
The sewage inactivation system further comprises a control system, the first sewage inlet pipe 41 is provided with a first sewage inlet pneumatic ball valve 410, the second sewage inlet pipe 42 is provided with a second sewage inlet pneumatic ball valve 420, and each sewage inlet pneumatic ball valve is controlled by the control system, so that the first sewage inlet pneumatic ball valve 410 and the second sewage inlet pneumatic ball valve 420 are respectively electrically connected with the control system, and the valves for controlling the first sewage inlet pneumatic ball valve 410 and the second sewage inlet pneumatic ball valve 420 through the control system are opened or closed.
Be provided with on the first blow off pipe 8 with blowdown pneumatic ball valve 80, be provided with blowdown pneumatic ball valve two 350 on the second blow off pipe 35, and each blowdown pneumatic ball valve all receives control system control can understand, blowdown pneumatic ball valve 80 and blowdown pneumatic ball valve two 350 respectively with control system electric connection to open or closed through the valve of control system control blowdown pneumatic ball valve 80 and blowdown pneumatic ball valve two 350.
Radar level sensor 10 is installed to sewage collection tank 1 for detect the liquid level in the sewage collection tank 1 and can feed back signal in control system through chooseing for use radar level sensor 10, has avoided using the influence of dirt to the level gauge sensitivity after a period, has guaranteed level control's the degree of accuracy, thereby makes sewage can not spill over the polluted environment. It can be understood that the radar level sensor 10 is also electrically connected to the control system, so that the level of the liquid in the sewage collecting tank 1 detected by the radar level sensor 10 is transmitted to the control panel of the control system.
The sewage collecting tank 1 is also provided with a first radio frequency switch 11 for prompting that the liquid level in the sewage collecting tank 1 reaches a set value and feeding back a signal to the control system, the first radio frequency switch 11 is a limit sensor, if the limit sensor senses that the liquid level in the sewage collecting tank 1 reaches the set value, the limit sensor feeds back the signal to the control system, the control system starts the water pump 40 to start, and the sewage in the sewage collecting tank 1 is conveyed to the first inactivation tank 2 and the second inactivation tank 3; the value set here is 9 tons, that is, when the liquid level in the sewage collecting tank 1 reaches 9 tons, the first rf switch 11 feeds back a signal to the control system.
In addition, the sewage in the sewage collecting tank 1 is introduced from pipelines in workshops such as vaccines or biological agents, therefore, a limit sensor can be additionally arranged on the sewage collecting tank 1, certainly, the limit sensor is also electrically connected with the control system, the value sensed by the limit sensor is 10 tons, namely when the sewage in the sewage collecting tank 1 reaches 10 tons, the control system controls a valve arranged on the pipeline to be closed, and the biological sewage is stopped entering the sewage collecting tank 1.
First differential pressure formula level sensor 22 is installed to first deactivation jar 2 for detect the liquid level in first deactivation jar 2 and can feedback signal in control system can understand, first differential pressure formula level sensor 22 and control system electric connection, first differential pressure formula level sensor 22 detects the liquid level in first deactivation jar 2 and can feed back on control system's control panel. Through selecting for use first differential pressure formula level sensor 22, avoided the influence of dirt to the level gauge sensitivity after using a period of time, guaranteed the degree of accuracy of liquid level control to make sewage can not spill over the polluted environment.
The first inactivation tank 2 is further provided with a second radio frequency switch 21 for prompting that the liquid level in the first inactivation tank 2 reaches a set value and feeding back a signal to the control system, wherein the set value which can be sensed by the second radio frequency switch 21 is 0.9 ton, that is, when the water level in the first inactivation tank 2 rises to 0.9 ton, the second radio frequency switch 21 feeds back a signal to the control system to perform the next step. It should be noted that this parameter of 0.9 ton is adjustable, and the second rf switch 21 can be set and installed according to actual conditions.
Of course, a radio frequency switch can be added to the first inactivation tank 2, and when the water level in the first inactivation tank 2 rises to 1 ton, the radio frequency switch can sense that the water level rises to the position and feed back a signal to the control system to alarm the liquid level, so as to prevent the inactivation of the sewage in the first inactivation tank 2 from being affected.
The first inactivation tank 2 is sleeved with a first jacket 20, the first jacket 20 is communicated with a first cooling water inlet pipe, a first water inlet pneumatic valve 2000 is arranged on the first cooling water inlet pipe 200, the first jacket 20 is further communicated with a first cooling water outlet pipe 201, a first water outlet pneumatic valve 2010 is arranged on the first cooling water outlet pipe 201, and the first water inlet pneumatic valve 2000 and the first water outlet pneumatic valve 2010 are both controlled by a control system. It can be understood that the inlet pneumatic valve 2000 and the outlet pneumatic valve 2010 are respectively electrically connected to the control system, and the control system controls the valves of the inlet pneumatic valve 2000 and the outlet pneumatic valve 2010 to be opened or closed.
The first inactivation tank 2 is further provided with a first stirring device 24, and the first stirring device 24 is controlled by the control system, that is, the first stirring device 24 is electrically connected with the control system, so as to control the start or stop of the first stirring device 24 through the control system.
The first inactivation jar 2 intercommunication has first steam inlet pipe 7, be provided with into steam pneumatic ball valve 70 on the first steam inlet pipe 7 for control steam gets into in the first inactivation jar 2, just it is controlled by control system to advance steam pneumatic ball valve 70, can understand, this advances steam pneumatic ball valve 70 and control system electric connection to through control system control steam pneumatic ball valve 70.
The second inactivation tank 3 is provided with a second differential pressure type liquid level sensor 32 which is used for detecting the liquid level in the second inactivation tank 3 and feeding back signals to the control system; it can be understood that the second differential pressure type liquid level sensor 32 is electrically connected to the control system, and the liquid level in the second inactivation tank 3 detected by the second differential pressure type liquid level sensor 32 can be fed back to the control panel of the control system. Through selecting for use second differential pressure formula level sensor 32, avoided using the influence of dirt to the level gauge sensitivity after a period, guaranteed liquid level control's the degree of accuracy to make sewage can not spill over the polluted environment.
The second inactivation tank 3 is sleeved with a second jacket 30, the second jacket 30 is communicated with a second cooling water inlet pipe, a second water inlet pneumatic valve II 3000 is arranged on the second cooling water inlet pipe 300, the second jacket 30 is also communicated with a second cooling water outlet pipe 301, a second water outlet pneumatic valve II 3010 is arranged on the second cooling water outlet pipe 301, and the second water inlet pneumatic valve II 3000 and the second water outlet pneumatic valve II 3010 are both controlled by the control system; the water inlet pneumatic valve II 3000 and the water outlet pneumatic valve II 3010 are respectively electrically connected with the control system, and the control system controls the valves of the water inlet pneumatic valve II 3000 and the water outlet pneumatic valve II 3010 to be opened or closed.
The second inactivation tank 3 is further provided with a second temperature sensor 33, which is used for detecting the temperature of the liquid in the second inactivation tank 3 and feeding back a signal to the control system; it can be understood that the second temperature sensor 33 is electrically connected to the control system, so that the second temperature sensor 33 detects the temperature of the wastewater in the second inactivation tank 3 and feeds the temperature back to the control panel of the control system.
The second inactivation tank 3 is further provided with a third radio frequency switch 31 for prompting that the liquid level in the second inactivation tank 3 reaches a set value and feeding back a signal to the control system; here, the setting value sensed by the third rf switch 31 is 0.9 ton, that is, when the water level in the second inactivation tank 3 rises to 0.9 ton, the third rf switch 31 feeds back a signal to the control system to perform the next operation. It should be noted that this parameter of 0.9 ton is adjustable, and the third rf switch 31 can be set and installed according to actual conditions.
Certainly, a radio frequency switch can also be added to the second inactivation tank 3, and when the water level in the second inactivation tank 3 rises to 1 ton, the radio frequency switch can sense that the water level rises to the position and feed back a signal to the control system to alarm the liquid level, so as to prevent the inactivation operation of the sewage in the second inactivation tank 3 from being affected.
The second inactivation tank 3 is also provided with a second stirring device 34, and the second stirring device 34 is controlled by a control system; that is, the second stirring device 34 is electrically connected to the control system, so as to control the start or stop of the second stirring device 34 through the control system.
The second inactivation tank 3 is communicated with a second steam inlet pipe 9, a second steam inlet pneumatic ball valve 90 is arranged on the second steam inlet pipe 9 and used for controlling steam to enter the second inactivation tank 3, and the second steam inlet pneumatic ball valve 90 is controlled by a control system; that is, it can be understood that the second steam inlet pneumatic ball valve 90 is electrically connected to the control system, so as to control the second steam inlet pneumatic ball valve 90 through the control system.
The second deactivation jar 3 intercommunication has the second to advance compressed air pipe 6, the second is advanced to be provided with into compressed air pneumatic ball valve two 60 on the compressed air pipe 6 for control compressed air gets into in the second deactivation jar 3, just it receives compressed air pneumatic ball valve two 60 and is controlled the control of control system.
A control method of a biological sewage inactivation system comprises the following steps:
(1) starting the system, and collecting a liquid level signal of the sewage collection tank 1, a liquid level signal and a temperature signal of the first inactivation tank 2 and the second inactivation tank 3 by the control system at the moment;
(2) according to the collected liquid level signal of the sewage collecting tank 1, carrying out sewage conveying;
the biological sewage discharged in the production process is discharged into the sewage collecting tank 1, when the liquid level of the sewage collecting tank 1 rises to a set liquid level value, the first radio frequency switch 11 is triggered to feed back a signal to the control system, and the control system controls the water pump 40 to start to convey the biological sewage in the sewage collecting tank 1 into the first inactivation tank 2 and the second inactivation tank 3;
(3) according to the collected liquid level signals of the first inactivation tank 2 and the second inactivation tank 3, independently stirring the sewage in the first inactivation tank 2 and the sewage in the second inactivation tank 3 respectively;
when the liquid level of the first inactivation tank 2 rises to the set liquid level value, triggering a second radio frequency switch 21 to feed back a signal to the control system, closing a valve of a first sewage inlet pneumatic ball valve 410, starting a first stirring device 24 at the moment, stirring the sewage of the first inactivation tank 2, and simultaneously opening a valve of a first steam inlet pneumatic ball valve 70 to enable steam to enter the first inactivation tank 2 for inactivation;
when the liquid level of the second inactivation tank 3 rises to the set liquid level value, triggering a third radio frequency switch 31 to feed back a signal to the control system, closing a valve of the second sewage inlet pneumatic ball valve 420, starting the second stirring device 34 to stir the sewage in the second inactivation tank 3, and simultaneously opening a valve of the second steam inlet pneumatic ball valve 90 to enable the steam to enter the second inactivation tank 3 for inactivation;
when the first inactivation tank 2 and the second inactivation tank 3 both enter the inactivation state, the water pump 40 stops working;
(4) according to the collected temperature signals of the first inactivation tank 2 and the second inactivation tank 3, the inactivation of the first inactivation tank 2 and the inactivation of the second inactivation tank 3 are respectively and independently executed;
when the sewage in the first inactivation tank 2 is heated to 110 ℃ by steam, the first temperature sensor 23 feeds back a signal to the control system, a valve of the steam inlet pneumatic ball valve I70 is closed, the first inactivation tank 2 enters an inactivation heat preservation state, the temperature is kept at 110 ℃ and is kept constant for 40 minutes;
when the sewage in the second inactivation tank 3 is heated to 110 ℃ by the steam, the second temperature sensor 33 feeds back a signal to the control system, the valve of the steam inlet pneumatic ball valve II 90 is closed, the second inactivation tank 3 enters an inactivation heat preservation state, the temperature is kept at 110 ℃ and is kept constant for 40 minutes;
(5) after the constant temperature is finished, the control system carries out cooling of the first inactivation tank 2 and the second inactivation tank 3;
after the constant temperature state of the first inactivation tank 2 is finished, the valve of the inlet pneumatic valve I2000 is opened, cooling water enters the first interlayer from the first cooling water inlet pipe 200 to cool the first inactivation tank 2, when the temperature is cooled to 50 ℃, the valve of the outlet pneumatic valve I2010 is opened, and the cooling water is discharged from the first cooling water outlet pipe 201;
after the constant temperature state of the second inactivation tank 3 is finished, the valve of the inlet pneumatic valve II 3000 is opened, cooling water enters the second interlayer from the second cooling water inlet pipe 300 to cool the second inactivation tank 3, when the temperature is cooled to 50 ℃, the valve of the outlet pneumatic valve II 3010 is opened, and the cooling water is discharged from the second cooling water outlet pipe 301;
(6) after cooling, the control system executes pollution discharge of the first inactivation tank 2 and the second inactivation tank 3;
after the first inactivation tank 2 is cooled, the valve of the first blowdown pneumatic ball valve 80 is opened, and meanwhile, the valve of the first compressed air pneumatic ball valve 50 is opened, so that the discharge of sewage in the first inactivation tank 2 is accelerated by introducing compressed air into the first inactivation tank 2;
after the second inactivation tank 3 is cooled, the valve of the second blowdown pneumatic ball valve 350 is opened, the valve of the second compressed air pneumatic ball valve 60 is opened, and the discharge of the sewage in the second inactivation tank 3 is accelerated by introducing compressed air into the second inactivation tank 3. And ending the primary inactivation process flow.
According to the invention, the two inactivation tanks simultaneously operate to inactivate, so that the efficiency of the whole biological sewage inactivation system is high, in the inactivation process, the sewage in the inactivation tanks is stirred by the stirring device, the full inactivation is ensured, the operation process of the whole biological sewage inactivation system can be automatically performed by adopting the method, the flexibility is strong, the automation of the whole process is realized, and the working efficiency is improved. In addition, through proper liquid level meter model selection, the influence of dirt on the sensitivity of the liquid level meter after the liquid level meter is used for a period of time is avoided, and the accuracy of liquid level control is ensured, so that sewage cannot overflow to pollute the environment.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (2)
1. The utility model provides a biological sewage inactivation system, includes sewage collection tank, first inactivation jar and second inactivation jar, sewage collection tank intercommunication has main dirty pipe of advancing, main dirty pipe intercommunication of advancing has first dirty pipe of advancing and second dirty pipe, first dirty pipe intercommunication of advancing first inactivation jar, dirty pipe intercommunication is advanced to the second inactivation jar, the bottom intercommunication of first inactivation jar has first blow off pipe, the bottom intercommunication of second inactivation jar has the second blow off pipe, be provided with on the main dirty pipe be used for with the biological sewage suction of sewage collection tank the water pump of first inactivation jar, second inactivation jar, its characterized in that: the sewage inactivation system also comprises a control system, the first sewage inlet pipe is provided with a first sewage inlet pneumatic ball valve, the second sewage inlet pipe is provided with a second sewage inlet pneumatic ball valve, and each sewage inlet pneumatic ball valve is controlled by the control system;
the first sewage discharge pipe is provided with a first sewage discharge pneumatic ball valve, the second sewage discharge pipe is provided with a second sewage discharge pneumatic ball valve, and each sewage discharge pneumatic ball valve is controlled by the control system;
the sewage collecting tank is provided with a radar type liquid level sensor which is used for detecting the liquid level height in the sewage collecting tank and feeding back a signal to the control system;
the sewage collecting tank is also provided with a first radio frequency switch which is used for prompting that the liquid level in the sewage collecting tank reaches a set value and feeding back a signal to the control system;
the first inactivation tank is provided with a first differential pressure type liquid level sensor which is used for detecting the liquid level height in the first inactivation tank and feeding back a signal to the control system;
the first inactivation tank is also provided with a second radio frequency switch which is used for prompting that the liquid level in the first inactivation tank reaches a set value and feeding back a signal to the control system;
the first inactivation tank is sleeved with a first jacket, the first jacket is communicated with a first cooling water inlet pipe, the first cooling water inlet pipe is provided with a first water inlet pneumatic valve, the first jacket is also communicated with a first cooling water outlet pipe, the first cooling water outlet pipe is provided with a first water outlet pneumatic valve, and the first water inlet pneumatic valve and the first water outlet pneumatic valve are both controlled by a control system;
the first inactivation tank is also provided with a first temperature sensor which is used for detecting the temperature of the liquid in the first inactivation tank and feeding back a signal to the control system;
the first inactivation tank is also provided with a first stirring device, and the first stirring device is controlled by a control system;
the first inactivation tank is communicated with a first steam inlet pipe, a first steam inlet pneumatic ball valve is arranged on the first steam inlet pipe and used for controlling steam to enter the first inactivation tank, and the first steam inlet pneumatic ball valve is controlled by a control system;
the first inactivation tank is communicated with a first compressed air inlet pipe, a first compressed air inlet pneumatic ball valve is arranged on the first compressed air inlet pipe and used for controlling compressed air to enter the first inactivation tank, and the first compressed air inlet pneumatic ball valve is controlled by a control system;
the second inactivation tank is provided with a second differential pressure type liquid level sensor which is used for detecting the liquid level height in the second inactivation tank and feeding back a signal to the control system;
the second inactivation tank is sleeved with a second jacket, the second jacket is communicated with a second cooling water inlet pipe, a second water inlet pneumatic valve II is arranged on the second cooling water inlet pipe, the second jacket is also communicated with a second cooling water outlet pipe, a second water outlet pneumatic valve II is arranged on the second cooling water outlet pipe, and the second water inlet pneumatic valve II and the second water outlet pneumatic valve II are both controlled by a control system;
the second inactivation tank is also provided with a second temperature sensor which is used for detecting the temperature of the liquid in the second inactivation tank and feeding back a signal to the control system;
the second inactivation tank is also provided with a third radio frequency switch for prompting that the liquid level in the second inactivation tank reaches a set value and feeding back a signal to the control system;
the second inactivation tank is also provided with a second stirring device, and the second stirring device is controlled by the control system;
the second inactivation tank is communicated with a second steam inlet pipe, a second steam inlet pneumatic ball valve is arranged on the second steam inlet pipe and used for controlling steam to enter the second inactivation tank, and the second steam inlet pneumatic ball valve is controlled by the control system;
the second deactivation jar intercommunication has the second to advance compressed air pipe, the second is advanced to be provided with into compressed air pneumatic ball valve two on the compressed air pipe for control compressed air gets into in the second deactivation jar, just advance compressed air pneumatic ball valve two and receive control system's control.
2. A method for controlling the inactivation system of biological wastewater as recited in claim 1, comprising the steps of:
(1) starting the system, and collecting a liquid level signal of the sewage collection tank, a liquid level signal and a temperature signal of the first inactivation tank and the second inactivation tank by the control system at the moment;
(2) according to the collected liquid level signal of the sewage collecting tank, carrying out sewage conveying;
the biological sewage discharged in the production process is discharged into a sewage collecting tank, when the liquid level of the sewage collecting tank rises to a set liquid level value, a first radio frequency switch is triggered to feed back a signal to a control system, and the control system controls a water pump to start to convey the biological sewage in the sewage collecting tank into a first inactivation tank and a second inactivation tank;
(3) respectively and independently stirring the sewage in the first inactivation tank and the second inactivation tank according to the collected liquid level signals of the first inactivation tank and the second inactivation tank;
when the liquid level of the first inactivation tank rises to a set liquid level value, triggering a second radio frequency switch to feed back a signal to the control system, closing a valve of the first sewage inlet pneumatic ball valve, starting the first stirring device to stir the sewage in the first inactivation tank, and simultaneously opening a valve of the first steam inlet pneumatic ball valve to enable steam to enter the first inactivation tank for inactivation;
when the liquid level of the second inactivation tank rises to the set liquid level value, triggering a third radio frequency switch to feed back a signal to the control system, closing a valve of the second sewage inlet pneumatic ball valve, starting a second stirring device to stir the sewage in the second inactivation tank, and simultaneously opening a valve of the second steam inlet pneumatic ball valve to enable steam to enter the second inactivation tank for inactivation;
when the first inactivation tank and the second inactivation tank both enter the inactivation state, the water pump stops working;
(4) according to the collected temperature signals of the first inactivation tank and the second inactivation tank, the inactivation of the first inactivation tank and the inactivation of the second inactivation tank are respectively and independently executed;
when the sewage in the first inactivation tank is heated to 110 ℃ by steam, a first temperature sensor feeds back a signal to the control system, a valve of a steam inlet pneumatic ball valve I is closed, the first inactivation tank enters an inactivation heat-preservation state, the temperature is kept at 110 ℃ and the constant temperature is kept for 40 minutes;
when the sewage in the second inactivation tank is heated to 110 ℃ by steam, a second temperature sensor feeds back a signal to the control system, a valve of the steam inlet pneumatic ball valve II is closed, the second inactivation tank enters an inactivation heat preservation state, the temperature is kept at 110 ℃ and the constant temperature is kept for 40 minutes;
(5) after the constant temperature is finished, the control system carries out cooling of the first inactivation tank and the second inactivation tank;
after the constant temperature state of the first inactivation tank is finished, a valve of a first inlet pneumatic valve is opened, cooling water enters the first interlayer from a first cooling water inlet pipe to cool the first inactivation tank, when the temperature is cooled to 50 ℃, the valve of a first outlet pneumatic valve is opened, and the cooling water is discharged from a first cooling water outlet pipe;
after the constant temperature state of the second inactivation tank is finished, the valve of the water inlet pneumatic valve II is opened, cooling water enters the second interlayer from the second cooling water inlet pipe to cool the second inactivation tank, when the temperature is cooled to 50 ℃, the valve of the water outlet pneumatic valve II is opened, and the cooling water is discharged from the second cooling water outlet pipe;
(6) after cooling is finished, the control system executes pollution discharge of the first inactivation tank and the second inactivation tank;
after the first inactivation tank is cooled, opening a valve of a first blowdown pneumatic ball valve, simultaneously opening a valve of a first compressed air pneumatic ball valve, and accelerating the discharge of sewage in the first inactivation tank by introducing compressed air into the first inactivation tank;
after the second inactivation tank is cooled, the valve of the second blowdown pneumatic ball valve is opened, the valve of the second compressed air pneumatic ball valve is opened simultaneously, and the discharge of sewage in the second inactivation tank is accelerated by introducing compressed air into the second inactivation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060323.9A CN110902739A (en) | 2019-11-01 | 2019-11-01 | Biological sewage inactivation system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060323.9A CN110902739A (en) | 2019-11-01 | 2019-11-01 | Biological sewage inactivation system and control method thereof |
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| CN110902739A true CN110902739A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911060323.9A Pending CN110902739A (en) | 2019-11-01 | 2019-11-01 | Biological sewage inactivation system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250838A (en) * | 2020-09-24 | 2022-03-29 | 山东轶骋真空科技有限公司 | Dirt box and vacuum excrement collecting system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203311229U (en) * | 2013-04-23 | 2013-11-27 | 江南大学 | Biological sewage inactivation tank operation state automatic control device |
| CN207903934U (en) * | 2017-12-31 | 2018-09-25 | 连云港百仑生化科技有限公司 | A kind of high-effect inactivation tank |
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2019
- 2019-11-01 CN CN201911060323.9A patent/CN110902739A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203311229U (en) * | 2013-04-23 | 2013-11-27 | 江南大学 | Biological sewage inactivation tank operation state automatic control device |
| CN207903934U (en) * | 2017-12-31 | 2018-09-25 | 连云港百仑生化科技有限公司 | A kind of high-effect inactivation tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250838A (en) * | 2020-09-24 | 2022-03-29 | 山东轶骋真空科技有限公司 | Dirt box and vacuum excrement collecting system |
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