Online monitoring and sampling device for water inlet of sewage plant

Abstract

The utility model belongs to the field of on-line monitoring and sampling of sewage, and discloses an on-line monitoring and sampling device for a water inlet of a sewage plant, which comprises a front-end pretreatment assembly for preliminary precipitation and filtration, and a core pretreatment assembly arranged below the front-end pretreatment assembly and used for further precipitation and filtration of overflow, waste discharge assemblies for discharging dirt and waste water are mounted at the bottoms of the front-end pretreatment assembly and the core pretreatment assembly; the core pretreatment assembly comprises a core water tank, two fine grid plates are uniformly mounted in the middle of the core water tank, a sampling water pipe is arranged at one end of the core water tank, and an overflow mechanism is arranged in front of the core water tank. According to the on-line monitoring and sampling device for the water inlet of the sewage plant, due to the arrangement of fall self-flowing, 24-hour uninterrupted on-line monitoring and sampling are guaranteed, and meanwhile energy consumption is reduced; pipeline blockage is reduced through multiple precipitation and filtration; impurities are effectively filtered, normal data output of an online instrument is guaranteed, and the service life of equipment is prolonged to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the field of sewage online monitoring and sampling, in particular to an online monitoring and sampling device for a water inlet of a sewage plant. Background Art

[0002] Online monitoring and sampling at sewage treatment plant inlets uses sensors and piping systems to collect and analyze water quality data in real time. This enables 24-hour monitoring, improving accuracy and efficiency and providing a strong basis for pollution prevention and control.

[0003] Traditionally, online sampling equipment at sewage treatment plant inlets relied on simple sewage pumps (which operated 24 / 7 and consumed a lot of energy). Because the water at sewage treatment plant inlets is complex and contains a lot of debris (hair, garbage, sediment, etc.), direct sewage pumping can easily clog the water intake pipes. Furthermore, the high impurities and sediment content of the pumped water can easily damage back-end analyzers, preventing them from operating properly and producing valid data, failing to accurately reflect water quality (the main chemical indicators monitored at sewage treatment plant inlets are COD, ammonia nitrogen, total phosphorus, total nitrogen, and pH). Therefore, a new device was needed. Utility Model Content

[0004] The purpose of the utility model is to provide an online monitoring sampling device for the water inlet of a sewage treatment plant to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An online monitoring sampling device for the water inlet of a sewage treatment plant includes a front-end pretreatment component for preliminary sedimentation and filtration, and also includes a core pretreatment component arranged below the front-end pretreatment component for further sedimentation and filtration overflow, and waste discharge components for discharging dirt and wastewater are installed at the bottom of the front-end pretreatment component and the core pretreatment component; the core pretreatment component includes a core water tank, two fine grid plates are evenly installed in the middle of the core water tank, a sampling water pipe is provided at one end of the core water tank, and an overflow mechanism is provided in front of the core water tank; the waste discharge component includes a waste discharge main pipe, a first waste discharge valve is installed at the top of the waste discharge main pipe, a plurality of waste discharge branch pipes are evenly distributed on the waste discharge main pipe, and a second waste discharge valve is installed on the waste discharge branch pipe.

[0007] Furthermore: the front-end pretreatment component includes a grit chamber, a water inlet pipe is provided on one side of the grit chamber, a coarse grid plate is provided in the middle of the grit chamber, and a water intake pipeline is provided on the side of the grit chamber away from the water inlet pipe.

[0008] Furthermore: the water intake pipeline includes a gravity pipe, a sewage pump is provided on one side of the gravity pipe, the sewage pump and the gravity pipe are connected, and a backwash valve is installed, and an outlet valve is installed at the water outlet of the gravity pipe.

[0009] Furthermore: the overflow mechanism includes three evenly distributed overflow pipes, the overflow pipes and the core water tank are welded together, respectively corresponding to the cavities divided by the two fine grid plates, the tails of the overflow pipes converge together, and a return pipe is provided.

[0010] Furthermore: the fine grid plate and the core water tank are plug-in connected, and the core water tank is made of 204 stainless steel.

[0011] Furthermore, the waste discharge main pipe is connected to the bottom of the grit chamber, and the waste discharge branch pipes are respectively connected to the bottom of the cavities divided by the two fine grid plates.

[0012] Compared with the prior art, the beneficial effects are:

[0013] 1. Through the setting of gravity flow, energy consumption is reduced while ensuring 24-hour uninterrupted online monitoring and sampling;

[0014] 2. Through the setting of multiple sedimentation and filtration, pipeline blockage is reduced;

[0015] 3. Effectively filter out impurities such as mud and sand, thereby ensuring the normal output of data from online instruments and extending the service life of the equipment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an online monitoring sampling device for a sewage treatment plant water inlet according to the utility model;

[0017] Figure 2 This is a front view of an online monitoring sampling device for a sewage treatment plant water inlet according to the utility model;

[0018] Figure 3 This is a front view of an online monitoring sampling device for a sewage treatment plant water inlet according to the utility model;

[0019] Figure 4 This is a circuit structure flow chart of an online monitoring and sampling device for a sewage treatment plant water inlet according to the utility model.

[0020] In the accompanying drawings: 101, grit chamber; 102, water inlet pipe; 103, coarse grid plate; 104, gravity pipe; 105, outlet valve; 106, sewage pump; 107, backwash valve; 201, core water tank; 202, sampling water pipe; 203, fine grid plate; 204, overflow pipe; 205, return pipe; 301, waste main pipe; 302, first waste valve; 303, waste branch pipe; 304, second waste valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-4 , an online monitoring sampling device for the water inlet of a sewage treatment plant, including a front-end pretreatment component for preliminary sedimentation and filtration, and a core pretreatment component arranged below the front-end pretreatment component for further sedimentation and filtration overflow, and a waste discharge component for discharging dirt and wastewater is installed at the bottom of the front-end pretreatment component and the core pretreatment component.

[0023] In this embodiment, the front-end pretreatment component includes a grit chamber 101, a water inlet pipe 102 is provided on one side of the grit chamber 101, a coarse grid plate 103 is provided in the middle of the grit chamber 101, and a water intake pipe is provided on the side of the grit chamber 101 away from the water inlet pipe 102; the water intake pipe includes a gravity pipe 104, a sewage pump 106 is provided on one side of the gravity pipe 104, the sewage pump 106 is connected to the gravity pipe 104, and a backflush valve 107 is installed. An outlet valve 105 is installed; sewage from the sewage treatment plant's water inlet grid well is continuously fed into the grit chamber 101 through the inlet pipe 102. Hair, garbage, and some sediment in the sewage are precipitated under the barrier of the coarse grid plate 103. The filtered water flows into the core water tank 201 along the gravity pipe 104 under the action of the drop. When the water flow in the gravity pipe 104 becomes significantly smaller, the backflush valve 107 is opened, and the sewage pump 106 pumps water to flush the gravity pipe 104 to ensure smooth flow.

[0024] In this embodiment: the core pretreatment component includes a core water tank 201, which is made of 204 stainless steel. Two fine grid plates 203 are evenly installed in the middle of the core water tank 201. The fine grid plates 203 and the core water tank 201 are pluggable. A sampling water pipe 202 is provided at one end of the core water tank 201, and an overflow mechanism is provided in front of the core water tank 201; the overflow mechanism includes three evenly distributed overflow pipes 204, which are welded together with the core water tank 201 and correspond to the cavities divided by the two fine grid plates 203 respectively. The tails of the overflow pipes 204 converge together and are provided with a return pipe 205; the filtered water is filtered by the two fine grid plates 203, and the sediment is further blocked and precipitated, and then flows out of the sampling water pipe 202 and flows into the sampling cup of the online instrument to ensure 24-hour uninterrupted online monitoring and sampling. The excess sewage converges into the return pipe 205 along the overflow pipe 204 and flows back to the grid well together;

[0025] In this embodiment: the waste discharge assembly includes a waste discharge main pipe 301, a first waste discharge valve 302 is installed at the top of the waste discharge main pipe 301, a number of waste discharge branch pipes 303 are evenly distributed on the waste discharge main pipe 301, and a second waste discharge valve 304 is installed on the waste discharge branch pipes 303; the waste discharge main pipe 301 is connected to the bottom of the grit chamber 101, and the waste discharge branch pipes 303 are respectively connected to the bottom of the cavity divided by the two fine grid plates 203; when there is too much waste deposited in the grit chamber 101, the first waste discharge valve 302 is opened to discharge the waste along the waste discharge main pipe 301; when there is too much sediment deposited in the core water tank 201, the second waste discharge valve 304 is opened to allow the sediment to flow into the waste discharge main pipe 301 along the waste discharge branch pipes 303 and then be discharged.

[0026] Working principle: The sewage in the water inlet grid well of the sewage treatment plant is continuously fed into the sand settling tank 101 from the water inlet pipe 102. The hair, garbage and part of the sediment in the sewage are blocked and precipitated by the coarse grid plate 103. The filtered water flows into the core water tank 201 along the gravity pipe 104 under the action of the drop. It is filtered again by two fine grid plates 203. After the sediment is further blocked and precipitated, it flows out from the sampling water pipe 202 and flows into the sampling cup of the online instrument, ensuring 24-hour uninterrupted online monitoring and sampling. The excess sewage is discharged. The waste is gathered into the return pipe 205 along the overflow pipe 204 and flows back to the grille well together. When there is too much waste deposited in the grit chamber 101, the first waste valve 302 is opened to discharge the waste along the waste main pipe 301. When there is too much sediment deposited in the core water tank 201, the second waste valve 304 is opened to allow the sediment to flow into the waste main pipe 301 along the waste branch pipe 303 and then be discharged. When the water flow in the gravity pipe 104 becomes significantly smaller, the backflush valve 107 is opened and the sewage pump 106 draws water to flush the gravity pipe 104 to ensure smooth flow.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online monitoring sampling device for the water inlet of a sewage treatment plant, including a front-end pretreatment component for preliminary sedimentation and filtration, characterized by: It also includes a core pretreatment component provided below the front-end pretreatment component for further sedimentation and filtration of overflow, and a waste discharge component for discharging dirt and wastewater is installed at the bottom of the front-end pretreatment component and the core pretreatment component; The core pretreatment assembly comprises a core water tank (201), two fine grid plates (203) are evenly installed in the middle of the core water tank (201), a sampling water pipe (202) is provided at one end of the core water tank (201), and an overflow mechanism is provided in front of the core water tank (201); The waste discharge assembly comprises a waste discharge main pipe (301), a first waste discharge valve (302) is installed at the top of the waste discharge main pipe (301), a plurality of waste discharge branch pipes (303) are evenly distributed on the waste discharge main pipe (301), and a second waste discharge valve (304) is installed on the waste discharge branch pipes (303).

2. The online monitoring sampling device for the water inlet of a sewage treatment plant according to claim 1 is characterized in that: The front-end pretreatment component comprises a grit chamber (101), a water inlet pipe (102) is provided on one side of the grit chamber (101), a coarse grid plate (103) is provided in the middle of the grit chamber (101), and a water intake pipeline is provided on the side of the grit chamber (101) away from the water inlet pipe (102).

3. The online monitoring sampling device for the water inlet of a sewage treatment plant according to claim 2 is characterized in that: The water intake pipeline comprises a gravity pipe (104), a sewage pump (106) is provided on one side of the gravity pipe (104), the sewage pump (106) and the gravity pipe (104) are connected, and a backwash valve (107) is installed. A water outlet valve (105) is installed at the water outlet of the gravity pipe (104).

4. The online monitoring sampling device for the water inlet of a sewage treatment plant according to claim 1 is characterized in that: The overflow mechanism comprises three evenly distributed overflow pipes (204), the overflow pipes (204) and the core water tank (201) being welded together, respectively corresponding to the cavities divided by the two fine grid plates (203), the tails of the overflow pipes (204) converging together and provided with a return pipe (205).

5. The online monitoring sampling device for the water inlet of a sewage treatment plant according to claim 4 is characterized in that: The fine grid plate (203) and the core water tank (201) are plug-in connected, and the core water tank (201) is made of 204 stainless steel.

6. The online monitoring sampling device for the water inlet of a sewage treatment plant according to claim 2, characterized in that: The waste discharge main pipe (301) is connected to the bottom of the grit chamber (101), and the waste discharge branch pipes (303) are respectively connected to the bottom of the cavities divided by the two fine grid plates (203).

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