Intelligent anti-blocking sewage sampling device

Abstract

The utility model relates to an intelligent anti-blocking sewage sampling device. Comprising a submersible pump, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a to-be-sampled sewage container and a controller which are connected in sequence, wherein the first pipeline is provided with a first electric control valve; the third pipeline and the fourth pipeline are connected in parallel and are sequentially provided with a second electric control valve, a Y-shaped filter and a pressure switch; when sampling begins, the controller opens the first electric control valve, the second electric control valve and the submersible pump until sewage in the to-be-sampled sewage container reaches a specified liquid level, the controller sends out a signal, the electric control valves and the submersible pump are closed, and the intelligent degree is very high; the Y-shaped filter can filter solid impurities in sewage, only one third pipeline is opened in the daily sampling process, and when the pressure of the pressure switch on the third pipeline is obviously reduced and reaches the set minimum value, the controller closes the third pipeline and opens the other pipeline to ensure normal circulation of the sewage, so that the condition of blockage in the whole sampling process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an intelligent anti-clogging sewage sampling device. Background Art

[0002] Before carrying out a series of water treatments, sewage treatment plants usually need to sample and test the sewage at the main plant inlet. Specific sampling indicators include: COD, ammonia nitrogen, total phosphorus and total nitrogen, etc. The current method is to use a sampling pump to pump the sewage inlet pool, and then transport the pumped sewage through a pipeline to a fixed detection container and then use various detection instruments to test the water quality. In order to prevent pipeline blockage and the accuracy of sampling detection, a filter is generally added to the inlet of the sampling pump. However, since the sewage contains a large amount of hair, wood chips, sand and gravel and other large-volume debris, it is very easy to cause the sampling pump inlet to be blocked, reducing the sampling efficiency and effect. In severe cases, it will cause the sampling pump to be damaged due to long-term evacuation. At the same time, since the pipeline design is generally carried out in a multi-story factory building, the pipeline winding is long, too many manual opening equipment will greatly increase the labor cost, and the degree of intelligence is low. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the problems of low intelligence level and poor anti-clogging effect of the sewage sampling device in the prior art.

[0004] In order to solve the above technical problems, the utility model provides an intelligent anti-clogging sewage sampling device, comprising:

[0005] A submersible pump, wherein the outlet of the submersible pump is provided with a first pipeline;

[0006] a first electric control valve, wherein an inlet of the first electric control valve is connected to the first pipeline, and an outlet of the first electric control valve is provided with a second pipeline;

[0007] A first three-way pipe, wherein the first three-way pipe comprises an inlet and two outlets, the inlet of the first three-way pipe is connected to the second pipeline, and the two outlets of the first three-way pipe are both provided with a third pipeline, and the third pipeline is sequentially provided with a second electric control valve, a Y-type filter and a pressure switch;

[0008] a second three-way pipe, wherein the second three-way pipe comprises two inlets and one outlet, the two inlets of the second three-way pipe are respectively connected to the two outlets of the third pipeline, and the outlet of the second three-way pipe is provided with a fourth pipeline;

[0009] a container for sewage to be sampled, the container for sewage to be sampled being connected to the fourth pipeline, and an electronic liquid level meter being arranged in the container for sewage to be sampled;

[0010] A controller, wherein the controller is connected to the submersible pump, the electronic liquid level gauge, the first electric control valve, the two pressure switches and the two second electric control valves, and the controller is used to receive signals from the electronic liquid level gauge and control the opening and closing of the first electric control valve. The controller is also used to receive signals from the pressure switch and control the opening and closing of the second electric control valve.

[0011] In one embodiment of the present invention, a first three-way valve is provided at one end of the first pipeline close to the submersible pump.

[0012] In one embodiment of the present utility model, a second three-way valve is provided at one end of the fourth pipeline close to the sewage sampling container.

[0013] In one embodiment of the present invention, a manual stop valve is further provided on the third pipeline, and the manual stop valve is provided on a side of the pressure switch away from the Y-type filter.

[0014] The above technical solution of the utility model has the following advantages compared with the prior art:

[0015] The intelligent anti-clogging sewage sampling device described in the utility model has a submersible pump directly placed in the sewage inlet pool. Driven by the submersible pump, the sewage flows through the first pipeline, the second pipeline, the third pipeline, the fourth pipeline and the sewage container to be sampled in sequence. The two third pipelines are arranged in parallel and can be opened at the same time or only one pipeline is opened. At the beginning of the regular sampling process, the controller opens the first electric control valve and the second electric control valve, and then controls the submersible pump to move until the sewage in the sewage container to be sampled reaches the specified liquid level. The controller sends a signal, and the first electric control valve, the second electric control valve and the submersible pump are closed. When secondary sampling is required, the above operation is performed again, which greatly improves the intelligence level of the entire device and greatly saves labor costs; the Y-type filter on the third pipeline can filter solid impurities in the sewage to the greatest extent, and the two third pipelines are standby for each other. Only one pipeline can be opened during daily sampling. When the pressure switch on one of the opened pipelines shows that the pressure is significantly reduced and reaches the set minimum value, the controller can close the second electric control valve of this pipeline and open the second electric control valve of another pipeline at the same time to ensure the normal flow of sewage, thereby ensuring that the entire sampling process will not be blocked, which is very reliable and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0017] Figure 1 This is a schematic diagram of the overall structure of the intelligent anti-clogging sewage sampling device of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the partial structure of the third pipeline in the intelligent anti-clogging sewage sampling device shown;

[0019] Figure 3 for Figure 1 The diagram shows the circuit control diagram of the intelligent anti-clogging sewage sampling device.

[0020] Explanation of the reference numerals in the drawings in the specification: 1. Submersible pump; 2. First pipeline; 3. First electric control valve; 4. Second pipeline; 410. First three-way pipe; 5. Third pipeline; 6. Second electric control valve; 7. Y-type filter; 8. Pressure switch; 9. Fourth pipeline; 910. Second three-way pipe; 10. Container for sewage to be sampled; 11. Electronic liquid level gauge; 12. Controller; 13. First three-way valve; 14. Second three-way valve; 15. Manual stop valve; 16. First floor; 17. Second floor. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] Reference Figures 1 to 3 As shown, the utility model provides an intelligent anti-clogging sewage sampling device, comprising:

[0023] A submersible pump 1, wherein the outlet of the submersible pump 1 is provided with a first pipeline 2;

[0024] A first electric control valve 3, the inlet of the first electric control valve 3 is connected to the first pipeline 2, and the outlet of the first electric control valve 3 is provided with a second pipeline 4;

[0025] A first three-way pipe 410, the first three-way pipe 410 includes an inlet and two outlets, the inlet of the first three-way pipe 410 is connected to the second pipeline 4, and the two outlets of the first three-way pipe 410 are both provided with a third pipeline 5, and the third pipeline 5 is sequentially provided with a second electric control valve 6, a Y-type filter 7 and a pressure switch 8;

[0026] A second three-way pipe 910, the second three-way pipe 910 includes two inlets and one outlet, the two inlets of the second three-way pipe 910 are respectively connected to the outlets of the two third pipelines 5, and the outlet of the second three-way pipe 910 is provided with a fourth pipeline 9;

[0027] A wastewater container 10 to be sampled, the wastewater container 10 to be sampled is connected to the fourth pipeline 9, and an electronic liquid level meter 11 is arranged in the wastewater container 10 to be sampled;

[0028] The controller 12 is connected to the submersible pump 1, the electronic liquid level gauge 11, the first electric control valve 3, two pressure switches 8 and two second electric control valves 6. The controller 12 is used to receive the signal of the electronic liquid level gauge 11 and control the opening and closing of the first electric control valve 3. The controller 12 is also used to receive the signal of the pressure switch 8 and control the opening and closing of the second electric control valve 6.

[0029] Specifically, in the present embodiment, the sewage inlet pool is arranged in the second channel, the submersible pump 1 is directly placed in the sewage inlet pool, the first pipeline 2 first extends upward from the sewage pool, then extends to the right, then passes downward through the second floor into the first floor, and then extends horizontally to the right, a first electric control valve 3 is arranged at the horizontal extension on the first floor, a second pipeline 4 is horizontally arranged at the outlet of the first electric control valve 3, the end of the second pipeline 4 is welded or connected to the first three-way pipe 410 through a flange, and the two outlets of the first three-way pipe 410 extend horizontally out of the third pipeline 5, the third pipeline 5 is in a multi-section state because the second electric control valve 6, the Y-type filter 7 and the pressure switch 8 are successively installed in the middle, the second three-way pipe 910 is welded or flanged at the ends of the two third pipelines 5, a fourth pipeline 9 is horizontally arranged at the outlet of the second three-way pipe 910, the fourth pipeline 9 first extends horizontally and then connects upward to the sewage container 10 to be sampled, an electronic liquid level meter 11 is placed inside the sewage container to measure and send sewage liquid level signals. The controller 12 is a PLC controller 12, which is wired to connect various electronic components and is used to receive signals and send instructions. After the submersible pump 1 pumps water into the wastewater container 10 to be sampled, the water in the entire pipeline can be shut down in a short time after starting the submersible pump 1 due to the existence of siphon. At the same time, the delayed closing of the first electric control valve 3 is set in the PLC controller 12, and the first electric control valve 3 is closed when the liquid level reaches the set value. The second electric control valve 6 can be closed after the pressure switch 8 alarms, and the two third pipelines 5 can also be opened at the same time to reduce the filtering pressure of a single pipeline. In addition, the connection between each pipeline can be in the form of flange connection.

[0030] In this intelligent anti-clogging sewage sampling device, the submersible pump 1 is directly placed in the sewage inlet pool. Driven by the submersible pump 1, the sewage flows through the first pipeline 2, the second pipeline 4, the third pipeline 5, the fourth pipeline 9 and the sewage container 10 to be sampled in sequence. The two third pipelines 5 are arranged in parallel and can be opened at the same time or only one is opened. At the beginning of the regular sampling process, the controller 12 opens the first electric control valve 3 and the second electric control valve 6, and then controls the submersible pump 1 to operate until the sewage in the sewage container 10 to be sampled reaches the specified liquid level. The controller 12 sends a signal, and the first electric control valve 3, the second electric control valve 6 and the submersible pump 1 Close, and perform the above operation when secondary sampling is needed, which greatly improves the intelligence level of the entire device and greatly saves labor costs; the Y-type filter 7 on the third pipeline 5 can filter solid impurities in the sewage to the greatest extent, and the two third pipelines 5 are backup for each other. Only one path can be opened during daily sampling. When the pressure switch 8 on one of the opened paths shows that the pressure is significantly reduced and reaches the set minimum value, the controller 12 can ensure the normal flow of sewage by closing the second electric control valve 6 of this path and opening the second electric control valve 6 of the other path at the same time, thereby ensuring that the entire sampling process will not be blocked, which is very reliable and effective.

[0031] Furthermore, a first three-way valve 13 is provided at one end of the first pipeline 2 close to the submersible pump 1 .

[0032] Specifically, the first three-way valve 13 is used to cut off the connection between the submersible pump 1 and the subsequent pipeline. Under normal circumstances, the three-way valve maintains a passage state on the first pipeline 2, and the remaining external interfaces are in a closed state.

[0033] Furthermore, the first three-way valve 13 may also be configured as an electric three-way valve for connecting to the controller 12 to improve the degree of intelligence.

[0034] Furthermore, a second three-way valve 14 is provided at one end of the fourth pipeline 9 close to the sewage sampling container.

[0035] Specifically, under normal circumstances, the three-way valve maintains a passage state on the fourth pipeline 9. When the sampling is completed, the passage is cut off, and the channel between the external interface and the sewage container 10 to be sampled is opened, so that the sewage in the sewage container 10 to be sampled can be discharged. When the entire pipeline needs to be flushed later, the first three-way valve 13 and the second three-way valve 14 are controlled to make the external interface of the first three-way valve 13 and the external interface of the second three-way valve 14 connected, and the external flushing water is connected to flush the entire pipeline, which can effectively prevent wall blockage in the pipeline.

[0036] Furthermore, the second three-way valve 14 may also be configured as an electric three-way valve for connecting to the controller 12 to improve the degree of intelligence.

[0037] Furthermore, a manual stop valve 15 is also provided on the third pipeline 5 , and the manual stop valve 15 is arranged on a side of the pressure switch 8 away from the Y-type filter 7 .

[0038] Specifically, when the second electric control valve 6 of one of the third pipelines 5 is closed, the manual stop valve 15 can be closed at the same time to inspect and clean the Y-type filter 7 without interfering with the normal use of the other third pipeline 5, thereby ensuring the normal flow of water in the pipeline with high reliability.

[0039] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An intelligent anti-clogging sewage sampling device, characterized in that: include: A submersible pump, wherein the outlet of the submersible pump is provided with a first pipeline; a first electric control valve, wherein an inlet of the first electric control valve is connected to the first pipeline, and an outlet of the first electric control valve is provided with a second pipeline; A first three-way pipe, wherein the first three-way pipe comprises an inlet and two outlets, the inlet of the first three-way pipe is connected to the second pipeline, and the two outlets of the first three-way pipe are both provided with a third pipeline, and the third pipeline is sequentially provided with a second electric control valve, a Y-type filter and a pressure switch; a second three-way pipe, wherein the second three-way pipe comprises two inlets and one outlet, the two inlets of the second three-way pipe are respectively connected to the two outlets of the third pipeline, and the outlet of the second three-way pipe is provided with a fourth pipeline; a container for sewage to be sampled, the container for sewage to be sampled being connected to the fourth pipeline, and an electronic liquid level meter being arranged in the container for sewage to be sampled; A controller connected to the submersible pump, the electronic level gauge, the first electric control valve, the two pressure switches and the two second electric control valves, the controller is used to receive signals from the electronic level gauge and control the opening and closing of the first electric control valve, and the controller is also used to receive signals from the pressure switch and control the opening and closing of the second electric control valve.

2. The intelligent anti-clogging sewage sampling device according to claim 1 is characterized in that: A first three-way valve is disposed at one end of the first pipeline close to the submersible pump.

3. The intelligent anti-clogging sewage sampling device according to claim 1 is characterized in that: A second three-way valve is arranged at one end of the fourth pipeline close to the sewage sampling container.

4. The intelligent anti-clogging sewage sampling device according to claim 1 is characterized in that: The third pipeline is also provided with a manual stop valve, and the manual stop valve is arranged on a side of the pressure switch away from the Y-type filter.

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