CN110743238A - Sewage online detection self-cleaning pretreatment system and method - Google Patents
Sewage online detection self-cleaning pretreatment system and method Download PDFInfo
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- CN110743238A CN110743238A CN201910982843.9A CN201910982843A CN110743238A CN 110743238 A CN110743238 A CN 110743238A CN 201910982843 A CN201910982843 A CN 201910982843A CN 110743238 A CN110743238 A CN 110743238A
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Abstract
A sewage on-line detection self-cleaning pretreatment system and a method relate to the field of sewage treatment, and comprise: a water outlet pipeline; the side part of the detection cup body is connected with a return pipe which is communicated with a water outlet pipeline; the water inlet pipeline is provided with a first electric control three-way valve which is respectively connected with a first liquid dividing pipe and a second liquid dividing pipe, the first liquid dividing pipe is communicated with a water outlet pipeline, and the second liquid dividing pipe is connected to the bottom of the detection cup body; the second liquid distribution pipe is sequentially provided with a filtering device and a second electric control three-way valve, the second electric control three-way valve is connected with a water outlet of the cleaning pump, a water inlet of the cleaning pump is connected with a third electric control three-way valve, the third electric control three-way valve is respectively connected with the cleaning liquid pool and the tap water pool, and the first electric control three-way valve, the second electric control three-way valve, the third electric control three-way valve and the cleaning pump are respectively electrically connected with the controller. The pipeline is cleaned on the premise of not disassembling the pipeline, and the service life of the pipeline is prolonged.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a sewage on-line detection self-cleaning pretreatment system and a method.
Background
After sewage treatment accomplished, need implement the detection to the sewage after handling, so that confirm whether sewage treatment is qualified, the online real-time monitoring system equipment during operation of sewage, need be in the front end to carry out the preliminary treatment by monitoring quality of water, remove various impurity in the sewage through the preliminary treatment, utilize filter equipment to filter the sewage in the sewage pipeline after handling, the sewage after the filtration detects through detection device again, in order to form the protection to detection device, the system is in the course of the work, these impurity easily adhere on filter equipment when passing through sewage pipes and filter equipment, long-time accumulation leads to the pipe blockage easily, the clearance need regularly to dismantle, the mode of dismantling the clearance not only influences the gas tightness of sewage pipeline, moreover, the complex operation, it is laborious to take trouble.
Disclosure of Invention
The invention aims to solve the problem that adhered impurities in a system pipeline are inconvenient to clean in a sewage online detection pretreatment system, and provides a sewage online detection self-cleaning pretreatment system and a sewage online detection self-cleaning pretreatment method.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an online detection self-cleaning pretreatment system for sewage, comprising:
a water outlet pipeline;
the side part of the detection cup body is connected with a return pipe, and the return pipe is communicated with a water outlet pipeline;
the water inlet pipeline is provided with a first electric control three-way valve which is respectively connected with a first liquid distribution pipe and a second liquid distribution pipe, the first liquid distribution pipe is communicated with a water outlet pipeline, and the second liquid distribution pipe is connected to the bottom of the detection cup body;
the cleaning device is characterized in that the second liquid distribution pipe is sequentially provided with a filtering device and a second electric control three-way valve, a cleaning pump water outlet is connected to the second electric control three-way valve, a third electric control three-way valve is connected to the cleaning pump water inlet, the third electric control three-way valve is respectively connected with the cleaning liquid pool and the tap water pool, and the first electric control three-way valve, the second electric control three-way valve, the third electric control three-way valve and the cleaning pump are respectively electrically connected with the controller.
Further, the filtering device comprises a first filter and a second filter, and the filtering precision of the second filter is greater than that of the first filter.
Furthermore, a pressure relief pipeline is connected between the first filter and the water outlet pipeline, and a pressure relief valve is installed on the pressure relief pipeline.
Furthermore, a water flow indicator is arranged on a second liquid distribution pipe between the second electric control three-way valve and the detection cup body.
Furthermore, a pressure regulating valve is arranged on a second liquid dividing pipe between the second electric control three-way valve and the detection cup body.
Further, the back flow is equipped with two and is first back flow, second back flow respectively, and two back flow are connected outlet conduit respectively, and detection cup lower part side is equipped with first liquid outlet, first back flow is connected in first liquid outlet department, and detection cup upper portion side is equipped with the second liquid outlet, the second liquid outlet is connected to the second back flow, install the solenoid valve on the first back flow.
The online detection self-cleaning pretreatment method for sewage comprises the following operations:
a detection stage: the water inlet pipeline is injected with a water sample to be detected, the controller controls the first electric control three-way valve to be connected with the first liquid distribution pipe in a closed direction, the second liquid distribution pipe is connected with the water inlet pipeline in an opened direction, the second electric control three-way valve is controlled to be connected with the cleaning pump in a closed direction, the second electric control three-way valve is connected with the second liquid distribution pipe in an opened direction, the water sample to be detected enters the second liquid distribution pipe through the water inlet pipeline, is filtered by the filtering device on the second liquid distribution pipe and then enters the detection cup body for detection, and the detected water flows into the water outlet pipeline through the return pipe;
a first cleaning stage: the controller controls the first electric control three-way valve to be connected with a water inlet pipeline in a closed direction, the first liquid dividing pipe and the second liquid dividing pipe are connected in an opened direction, the second electric control three-way valve is controlled to be simultaneously opened in three directions, the controller controls the third electric control three-way valve to be connected with a tap water tank in a closed direction, the cleaning liquid tank and the cleaning pump are connected in an opened direction, the cleaning pump is controlled to be opened simultaneously, cleaning liquid is pumped into the second liquid dividing pipe, the cleaning liquid entering the second liquid dividing pipe cleans the second liquid dividing pipe, the cleaning liquid respectively flows into the first liquid dividing pipe and the detection cup body from two ends of the second liquid dividing pipe, the cleaning liquid flowing into the first liquid dividing pipe flows into a water outlet pipeline through the first liquid dividing pipe, and the cleaning liquid flowing;
and a second cleaning stage: the controller controls the first electric control three-way valve to be connected with the water inlet pipeline and is closed, the first liquid dividing pipe and the second liquid dividing pipe are connected and are opened, the second electric control three-way valve is controlled to be opened simultaneously, the controller controls the third electric control three-way valve to be connected with the cleaning liquid pool and is closed, the tap water pool and the cleaning pump are connected and are opened simultaneously, the cleaning pump is controlled to be opened simultaneously, tap water is pumped into the second liquid dividing pipe, the tap water entering the second liquid dividing pipe carries out secondary cleaning on the second liquid dividing pipe, the tap water flows into the first liquid dividing pipe and the detection cup body from two ends of the second liquid dividing pipe respectively, the tap water flowing into the first liquid dividing pipe flows into the water outlet pipeline through the first liquid dividing pipe, and the tap water flowing into the detection.
The invention has the beneficial effects that:
the invention has simple structure, the controller is used for respectively controlling the opening and closing of the corresponding valve ports on the first electric control three-way valve, the second electric control three-way valve and the third electric control three-way valve, the pretreatment system can filter the sewage to be detected flowing into the detection cup body, and can clean the pipeline on the premise of not disassembling the pipeline, thereby prolonging the service life of the pipeline and ensuring the normal operation of the system.
Drawings
FIG. 1 is a sewage flow diagram of a detection stage system of the present invention;
FIG. 2 is a flow diagram of the cleaning agent of the cleaning stage system of the present invention;
FIG. 3 is a flow diagram of tap water from the second system during the cleaning stage of the present invention;
in the figure: 1. a water outlet pipeline; 2. detecting the cup body; 3. a water inlet pipe; 12. a return pipe; 13. a first electrically controlled three-way valve; 14. a first liquid dividing pipe; 15. a second liquid dividing pipe; 21. a filtration device; 22. a second electrically controlled three-way valve; 23. cleaning the pump; 24. a third electrically controlled three-way valve; 25. a cleaning liquid pool; 26. a tap water pool; 27. a controller; 2101. a first filter; 2102. a second filter; 31. a pressure relief duct; 32. a pressure relief valve; 33. a water flow indicator; 201. a first liquid outlet; 202. a second liquid outlet; 1201. a first return pipe; 1202. a second return pipe; 41. a pressure regulating valve; 42. an electromagnetic valve.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1
As shown in fig. 1, 2, 3; an online detection self-cleaning pretreatment system for sewage, comprising:
a water outlet pipeline 1;
the side part of the detection cup body 2 is connected with a return pipe 12, and the return pipe 12 is communicated with the water outlet pipeline 1;
the water inlet pipe 3 is provided with a first electric control three-way valve 13, the first electric control three-way valve 13 is respectively connected with a first liquid distribution pipe 14 and a second liquid distribution pipe 15, the first liquid distribution pipe 14 is communicated with the water outlet pipe 1, and the second liquid distribution pipe 15 is connected to the bottom of the detection cup body 2; the three interfaces of the first electric control three-way valve 13 are respectively an interface a, an interface b and an interface c, the interface a is connected with the water inlet pipeline 3, the interface b is connected with the first liquid dividing pipe 14, and the interface c is connected with the second liquid dividing pipe 15;
the second liquid distribution pipe 15 is sequentially provided with a filtering device 21 and a second electric control three-way valve 22, the second electric control three-way valve 22 is connected with a water outlet of a cleaning pump 23, a water inlet of the cleaning pump 23 is connected with a third electric control three-way valve 24, the third electric control three-way valve 24 is respectively connected with a cleaning liquid pool 25 and a tap water pool 26, and the first electric control three-way valve 13, the second electric control three-way valve 22, the third electric control three-way valve 24 and the cleaning pump 23 are respectively electrically connected with a controller 27. The three interfaces of the second electric control three-way valve 22 are an e interface, an f interface and a g interface respectively, the e interface and the g interface are connected on the second liquid dividing pipe, the f interface is connected with an output port of the cleaning pump, the three interfaces of the third electric control three-way valve 24 are an h interface, a j interface and an i interface respectively, the h interface is connected with an input port of the cleaning pump 23, the j interface is connected with the cleaning liquid pool 25, and the i interface is connected with the tap water pool 26.
The filtering apparatus 21 includes a first filter 2101 and a second filter 2102, and the second filter 2102 filters more precisely than the first filter 2101, thereby improving the filtering precision, and when the pipeline is cleaned with cleaning solution and tap water, impurities located in the second filter 2102 can be discharged through the first filter 2101, which is advantageous for pipeline cleaning.
When the input pressure of the water inlet pipe 3 is too high, the pressure in the second liquid distribution pipe 15 is also increased, so that the flow rate of sewage entering the detection cup body 2 from the second liquid distribution pipe 15 is increased, the quantity of sewage entering the detection cup body 2 is unstable, the sewage in the detection cup body 2 overflows due to too high flow rate, the detection effect is influenced, by connecting a pressure relief pipeline 31 between the first filter 2101 and the water outlet pipeline 1, a pressure relief valve 32 is installed on the pressure relief pipeline 31, the first filter 2101 is a Y-shaped filter, the sewage introduced by the water inlet pipeline 3 is divided, when the water pressure in the water inlet pipeline 3 is increased, the pressure value exceeds the maximum pressure value of the pressure release valve 32, the sewage in the water inlet pipeline 3 can directly flow into the water outlet pipeline 1 through the pressure release pipeline 31, reduce the influence of 3 pressure risees of inlet channel to 15 pressures of second branch liquid pipe, provide the guarantee for sewage detection in detecting cup 2.
When taking place to block up in 3 water pressure reductions of inlet channel or filter equipment 21, rivers pressure reduction in the second branch liquid pipe 15, can lead to the sewage backward flow in the detection cup 2 to divide liquid pipe 15 to the second this moment, and then caused the inaccuracy of detection result in the detection cup 2, and detect the people's observation of being not convenient for of sewage backward flow in the cup 2, through install rivers indicator 33 on the second branch liquid pipe 15 between second automatically controlled three-way valve 22 and detection cup 2, utilize rivers indicator 33 to show the current rivers direction in the second branch liquid pipe 15, when taking place rivers reverse flow, be convenient for manual identification, in time clean or inlet channel 3 steps up filter equipment 21.
A pressure regulating valve 41 is arranged on the second liquid distribution pipe 15 between the second electric control three-way valve 22 and the detection cup body 2 to regulate the amount of sewage entering the detection cup body 2 from the second liquid distribution pipe 15, so as to prevent the sewage in the detection cup body 2 from overflowing.
The sewage entering the detection cup body 2 from the second liquid dividing pipe 15 can be accumulated between the joint of the return pipe 12 and the detection cup body 2 and the bottom of the detection cup body 2, when the sewage surface overflows the joint of the return pipe 12 and the detection cup body 2, the sewage can be discharged from the detection cup body 2 through the return pipe 12, so that the sewage flow in the detection cup body 2 is realized, in this way, when the system is cleaned, the cleaning solution can be retained in the detection cup body 2, the subsequent detection of the sewage can be influenced by the cleaning solution retained in the detection cup body 2, the sewage detection effect is influenced, the return pipe 12 is provided with two first return pipes 1201 and two second return pipes 1202 respectively, the two return pipes are respectively connected with the water outlet pipeline 1, the side part of the lower part of the detection cup body 2 is provided with a first liquid outlet 201, the first return pipe 1201 is connected with the first liquid outlet 201, the side part of the upper part of, the second return pipe 1202 is connected with the second liquid outlet 202, the electromagnetic valve 42 is installed on the first return pipe 1201, the electromagnetic valve 42 is electrically connected with the controller 27, in the stage of normally detecting sewage, the controller 27 controls the electromagnetic valve 42 to be closed, at the moment, sewage flows in through the bottom of the detection cup body 2 and then flows out through the second return pipe 1202, and unidirectional flow in the detection cup body 2 is realized; in the first and second cleaning stages, the controller 27 controls the electromagnetic valve 42 to open, so that the cleaning solution and the tap water entering the detection cup body 2 can flow out through the first return pipe 1201, thereby preventing the cleaning solution and the tap water from being accumulated in the detection cup body 2, and reducing the influence on the sewage detection data after the cleaning is completed.
The online detection self-cleaning pretreatment method for sewage comprises the following operations:
a detection stage: the water sample to be detected is injected into the water inlet pipe 3, the controller 27 controls the first electrically controlled three-way valve 13 to connect the first liquid dividing pipe 14 for directional closing, the second liquid dividing pipe 15 and the water inlet pipe 3 for directional opening, and simultaneously controls the second electrically controlled three-way valve 22 to connect the cleaning pump 23 for directional closing, the second electrically controlled three-way valve 22 to connect the second liquid dividing pipe 15 for directional opening, as shown in fig. 1, wherein the b interface on the first electrically controlled three-way valve 13 is closed, the a interface and the c interface are opened, the e interface and the g interface on the second electrically controlled three-way valve 22 are opened, the f interface is closed, at this time, the detected water sample enters the second liquid dividing pipe 15 through the water inlet pipe 3, the flow direction of the detected water sample is indicated by an arrow in fig. 1, the detected water sample enters the detection cup body 2 for detection after being filtered by the filter 21 on the second, is discharged through a water outlet pipeline 1;
a first cleaning stage: the controller 27 controls the first electrically controlled three-way valve 13 to close the water inlet pipe 3, the first branch pipe 14 and the second branch pipe 15 to open, and controls the second electrically controlled three-way valve 22 to open simultaneously in three directions, the controller 27 controls the third electrically controlled three-way valve 24 to close the tap water tank 26, the cleaning liquid tank 25 and the cleaning pump 23 to open, and controls the cleaning pump 23 to open, so as to pump the cleaning liquid into the second branch pipe 15, as shown in fig. 2, wherein the a port on the first electrically controlled three-way valve 13 is closed, the b port and the c port are opened, the e port, the f port and the g port on the second electrically controlled three-way valve 22 are opened simultaneously, the h port and the j port on the third electrically controlled three-way valve 24 are opened, the i port is closed, the flow direction of the cleaning liquid is as indicated by the arrow in fig. 2, and the cleaning liquid entering the second branch pipe 15 at this time, the cleaning liquid flowing into the first branch pipe 14 and the detection cup body 2 respectively flows into the first branch pipe 14 and the detection cup body 2 from two ends of the second branch pipe 15, the cleaning liquid flowing into the first branch pipe 14 flows into the water outlet pipeline 1 through the first branch pipe 14, and the cleaning liquid flowing into the detection cup body 2 flows into the water outlet pipeline 1 through the return pipe 12; removing dirt adhered to the inner wall of the pipeline and the filtering device by using cleaning liquid;
and a second cleaning stage: the controller 27 controls the first electrically controlled three-way valve 13 to close the connection direction of the water inlet pipe 3, the first branch pipe 14 and the second branch pipe 15 to open, and simultaneously controls the second electrically controlled three-way valve 22 to open simultaneously in three directions, the controller 27 controls the third electrically controlled three-way valve 24 to close the connection direction of the cleaning liquid pool 25, the connection tap water pool 26 and the cleaning pump 23 to open, and simultaneously controls the cleaning pump 23 to open, so as to pump tap water into the second branch pipe 15, as shown in fig. 3, wherein the a port on the first electrically controlled three-way valve 13 is closed, the b port and the c port are opened, the e port, the f port and the g port on the second electrically controlled three-way valve 22 are opened simultaneously, the h port and the i port on the third electrically controlled three-way valve 24 are opened, the j port is closed, the flowing direction of the cleaning liquid is as indicated by the arrow in fig. 3, and, and the tap water flowing into the first branch pipe 14 and the detection cup body 2 from the two ends of the second branch pipe 15 respectively flows into the outlet pipe 1 through the first branch pipe 14, and the tap water flowing into the detection cup body 2 flows into the outlet pipe 1 through the return pipe 12. The cleaning liquid is cleaned by tap water, so that the content of the cleaning liquid adhered to a pipeline system after cleaning is reduced, and the influence of the cleaning liquid on sewage detection is reduced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a sewage on-line measuring automatically cleaning pretreatment systems which characterized in that includes:
a water outlet pipeline;
the side part of the detection cup body is connected with a return pipe, and the return pipe is communicated with a water outlet pipeline;
the water inlet pipeline is provided with a first electric control three-way valve which is respectively connected with a first liquid distribution pipe and a second liquid distribution pipe, the first liquid distribution pipe is communicated with a water outlet pipeline, and the second liquid distribution pipe is connected to the bottom of the detection cup body;
the cleaning device is characterized in that the second liquid distribution pipe is sequentially provided with a filtering device and a second electric control three-way valve, a cleaning pump water outlet is connected to the second electric control three-way valve, a third electric control three-way valve is connected to the cleaning pump water inlet, the third electric control three-way valve is respectively connected with the cleaning liquid pool and the tap water pool, and the first electric control three-way valve, the second electric control three-way valve, the third electric control three-way valve and the cleaning pump are respectively electrically connected with the controller.
2. The sewage on-line detection self-cleaning pretreatment system of claim 1, wherein the filtration device comprises a first filter and a second filter, and the filtration precision of the second filter is higher than that of the first filter.
3. The sewage on-line detection self-cleaning pretreatment system of claim 2, wherein a pressure relief pipeline is connected between the first filter and the water outlet pipeline, and a pressure relief valve is installed on the pressure relief pipeline.
4. The on-line sewage detection self-cleaning pretreatment system of claim 1, wherein a water flow indicator is installed on a second branch pipe between the second electrically-controlled three-way valve and the detection cup body.
5. The on-line sewage detection self-cleaning pretreatment system of claim 1, wherein a pressure regulating valve is installed on a second branch pipe between the second electrically-controlled three-way valve and the detection cup body.
6. The on-line detection and self-cleaning pretreatment system for sewage water as claimed in claim 1, wherein the return pipe comprises a first return pipe and a second return pipe, the first return pipe and the second return pipe are connected to a water outlet pipeline, a first liquid outlet is arranged on the side of the lower portion of the detection cup body, the first return pipe is connected to a first liquid outlet, a second liquid outlet is arranged on the side of the upper portion of the detection cup body, the second return pipe is connected to a second liquid outlet, and a solenoid valve is installed on the first return pipe.
7. A method for on-line detection of self-cleaning pretreatment by using sewage of any one of claims 1 to 6, characterized by operating as follows:
a detection stage: the water inlet pipeline is injected with a water sample to be detected, the controller controls the first electric control three-way valve to be connected with the first liquid distribution pipe in a closed direction, the second liquid distribution pipe is connected with the water inlet pipeline in an opened direction, the second electric control three-way valve is controlled to be connected with the cleaning pump in a closed direction, the second electric control three-way valve is connected with the second liquid distribution pipe in an opened direction, the water sample to be detected enters the second liquid distribution pipe through the water inlet pipeline, is filtered by the filtering device on the second liquid distribution pipe and then enters the detection cup body for detection, and the detected water flows into the water outlet pipeline through the return pipe;
a first cleaning stage: the controller controls the first electric control three-way valve to be connected with a water inlet pipeline in a closed direction, the first liquid dividing pipe and the second liquid dividing pipe are connected in an opened direction, the second electric control three-way valve is controlled to be simultaneously opened in three directions, the controller controls the third electric control three-way valve to be connected with a tap water tank in a closed direction, the cleaning liquid tank and the cleaning pump are connected in an opened direction, the cleaning pump is controlled to be opened simultaneously, cleaning liquid is pumped into the second liquid dividing pipe, the cleaning liquid entering the second liquid dividing pipe cleans the second liquid dividing pipe, the cleaning liquid respectively flows into the first liquid dividing pipe and the detection cup body from two ends of the second liquid dividing pipe, the cleaning liquid flowing into the first liquid dividing pipe flows into a water outlet pipeline through the first liquid dividing pipe, and the cleaning liquid flowing;
and a second cleaning stage: the controller controls the first electric control three-way valve to be connected with the water inlet pipeline and is closed, the first liquid dividing pipe and the second liquid dividing pipe are connected and are opened, the second electric control three-way valve is controlled to be opened simultaneously, the controller controls the third electric control three-way valve to be connected with the cleaning liquid pool and is closed, the tap water pool and the cleaning pump are connected and are opened simultaneously, the cleaning pump is controlled to be opened simultaneously, tap water is pumped into the second liquid dividing pipe, the tap water entering the second liquid dividing pipe carries out secondary cleaning on the second liquid dividing pipe, the tap water flows into the first liquid dividing pipe and the detection cup body from two ends of the second liquid dividing pipe respectively, the tap water flowing into the first liquid dividing pipe flows into the water outlet pipeline through the first liquid dividing pipe, and the tap water flowing into the detection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910982843.9A CN110743238A (en) | 2019-10-16 | 2019-10-16 | Sewage online detection self-cleaning pretreatment system and method |
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| CN201910982843.9A CN110743238A (en) | 2019-10-16 | 2019-10-16 | Sewage online detection self-cleaning pretreatment system and method |
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| CN112626770A (en) * | 2020-11-24 | 2021-04-09 | 孟玲玉 | Textile dye pollution discharge device and operation method |
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Application publication date: 20200204 |