Siphon type sampling device for inflow water of sewage plant

Abstract

The utility model provides a sewage plant inlet water siphoning type sampling device, which belongs to the technical field of sewage sampling equipment and comprises a siphon arranged at the top of a sewage inlet pool, the siphon comprises a first pipe section extending into the sewage inlet pool and a second pipe section extending out of the sewage inlet pool, and a solenoid valve is arranged at the water outlet end of the second pipe section. A filter screen cylinder is arranged at the water inlet end of the first pipe section, a filter fence frame is arranged outside the water inlet end of the first pipe section in a communicated mode, a downstream tee joint is arranged on the upper portion of the electromagnetic valve, a backwashing pipeline is arranged at the branch end of the downstream tee joint, and a backwashing pump is arranged at the water inlet end of the backwashing pipeline. The probability that hard impurities enter the water inlet end of the siphon is reduced, the probability that the siphon is blocked is reduced, when the siphon is blocked, the second valve is opened, the backwashing pump is started to supplement water to the backwashing pipeline, the siphon is subjected to backwashing, the siphon can be prevented from being blocked, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage sampling equipment technical field, concretely relates to a sewage plant water inlet siphon type sampling device. BACKGROUND

[0002] The city sewage is generally formed by domestic sewage, industrial sewage, municipal sewage and part rainwater etc. Although the water quantity handled by the city sewage treatment plant is very large, but the water quantity and water quality entering the sewage plant always change with time. The change of the water quantity and water quality inevitably leads to the change of the water load, inorganic pollution load and organic pollution load of the sewage treatment system, and the change of the sludge load and organic matter load of the sludge treatment system. Correspondingly, each treatment unit of the sewage plant should take measures to adapt to the change, and ensure the normal operation of the sewage plant.

[0003] In the related art, the sewage treatment plant samples the water in each sewage inlet pool every day, and then judges the water quality of the water in the sewage inlet pool by sampling and testing. In order to facilitate sampling of sewage, a water pump is usually installed at the outlet end of the water pumping pipeline to pump sewage. However, the sewage pool contains a lot of hard impurities, which often causes the sampling pump set to be easily blocked, and the pump set needs to be cleaned frequently, which is troublesome to use. The water sampling needs to be taken manually by the team every 4 hours, and the pump set needs to be cleaned once a day, otherwise it will affect the normal work rhythm. Therefore, a water pumping pipeline using the siphon principle is used for automatic sampling. By controlling the electromagnetic valve at the outlet end of the siphon pipe, the opening and closing of the siphon pipe are controlled, so as to facilitate sampling and save cost.

[0004] However, when the siphon works, the siphon pipe is easily blocked by hard impurities combined with yarn impurities when the siphon pipe pumps sewage. Once the siphon pipe is blocked, the siphon effect will stop immediately, resulting in the inability to sample. New sampling and cleaning of the blocked part are required. To solve the above problems, a sewage plant water inlet siphon type sampling device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a sewage plant water inlet siphon type sampling device, which reduces the probability of impurities entering the siphon pipe through the filter column frame, and further filters the first pipe section water inlet end through the filter screen cylinder, thereby reducing the probability of hard impurities entering the siphon pipe water inlet end and reducing the probability of siphon pipe blockage. Whether the siphon pipe is blocked can also be judged by counting whether it is abnormal through the flow meter. The siphon pipe can be backwashed by opening the second valve to start the backwashing pump to supplement the backwashing pipeline, thereby preventing the siphon pipe from being blocked and facilitating use.

[0006] To solve the above technical problems, the utility model provides a kind of sewage plant water inlet siphon type sampling device, including the siphon pipe being arranged at the top of sewage intake basin, siphon pipe includes the first pipe section being inserted into sewage intake basin and the second pipe section being extended outside sewage intake basin, the water outlet end of second pipe section is provided with solenoid valve, the water inlet end of first pipe section is provided with filter screen cylinder, the outside of the water inlet end of first pipe section is provided with filter frame, one side of filter frame is provided with locating plate, locating plate is connected with the inner wall of sewage intake basin, the upper portion of solenoid valve is provided with water following tee, the upper portion of straight-through end of water following tee is provided with first valve, first valve is fixed on second pipe section, the branch end of water following tee is provided with backwash pipeline, the water inlet end of backwash pipeline is provided with backwash pump.

[0007] Filter frame is a cube, and a plurality of filter openings for blocking hard impurities are arranged on six surfaces of the filter frame. The filter frame and the filter openings are used to reduce the probability of hard impurities entering the first pipe section, thereby reducing the probability of siphon pipe blockage. The water inlet end of the first pipe section is inserted into the filter frame.

[0008] A plurality of first clamps are arranged on the surface of the first pipe section. The first clamps are used to connect the first pipe section with the inner wall of the sewage intake basin, so that the first pipe section is supported and deviation of the first pipe section is prevented, thereby protecting the pipe fittings on the siphon pipe. Each first clamp is connected with the inner wall of the sewage intake basin. A plurality of second clamps are arranged on the surface of the second pipe section. The second clamps are used to connect the second pipe section with the outer wall of the sewage intake basin, so that the second pipe section is supported and deviation of the second pipe section is prevented, thereby protecting the service life of the pipe fittings on the siphon pipe. Each second clamp is connected with the outer wall of the sewage intake basin.

[0009] A second valve is arranged on the backwash pipeline. The second valve is used to control the on-off of the backwash pipeline and the water following tee, so that when the backwash pipeline supplies backwash water, the backwash water can enter the second pipe section, and the siphon pipe is back-flushed.

[0010] A flow meter is arranged between the solenoid valve and the lower end of the straight-through end of the water following tee. The flow meter is used to count the flow of sampling. When the flow meter counts abnormally during sampling, remote alarm is performed, so that the second valve is opened, and the backwash pump is started to back-flush the siphon pipe.

[0011] The water outlet end of the solenoid valve is connected with a drain hose. The drain hose is used to guide the water in the second pipe section to a storage bucket. A movable storage bucket is inserted into the bottom of the drain hose. The storage bucket is convenient for replacement during sampling.

[0012] Compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0013] 1. The filter column frame reduces the probability of impurities entering the siphon pipe, and the filter screen cylinder performs secondary filtration on the water inlet end of the first pipe section, thereby reducing the probability of hard impurities entering the water inlet end of the siphon pipe, thereby reducing the probability of siphon pipe blockage, and the flow meter can also be used to determine whether the siphon pipe is blocked, the second valve is opened to start the backwash pump to supplement the backwash pipeline, and then the siphon pipe is backwashed, which can prevent the siphon pipe from being blocked and is convenient to use.

[0014] 2. The first clamp is used to connect the first pipe section with the inner wall of the sewage inlet pool, so that the first pipe section is supported to prevent the first pipe section from deviating and thereby protecting the pipe fittings on the siphon pipe, and the second clamp is used to connect the second pipe section with the outer wall of the sewage inlet pool, so that the second pipe section is supported to prevent the second pipe section from deviating and thereby protecting the service life of the pipe fittings on the siphon pipe.

[0015] 3. The flow meter is used to count the flow of the sample, and the flow meter is also used to determine whether the siphon pipe is blocked, and when the flow meter counts abnormally during sampling, remote alarm is performed to open the second valve and then start the backwash pump to backwash the siphon pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the main structure of the utility model;

[0017] Figure 2 It is a schematic view of the assembly structure of the utility model;

[0018] Figure 3 It is the A partial enlarged view of the utility model; Figure 2

[0019] Figure 4 It is a side view of the utility model;

[0020] Figure 5 It is the B partial enlarged view of the utility model. Figure 4

[0021] BRIEF DESCRIPTION OF DRAWINGS: 100, sewage inlet pool; 101, siphon pipe; 102, first pipe section; 103, second pipe section; 104, electromagnetic valve; 200, filter screen cylinder; 201, filter column frame; 202, positioning plate; 203, filter port; 300, water following tee; 301, first valve; 302, flow meter; 303, drain hose; 304, water storage bucket; 400, backwash pipeline; 401, backwash pump; 402, second valve; 500, first clamp; 501, second clamp. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the following will combine the drawings of the embodiments of the utility model with the specific embodiments of the utility model to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer. Figures 1-5 ​​The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figures 1-5 As shown: This embodiment provides a siphon sampling device for wastewater inlet of a wastewater treatment plant, including a siphon pipe 101 installed at the top of a wastewater inlet tank 100. The siphon pipe 101 is generally U-shaped and can be made of PVC or PE material. The siphon pipe 101 includes a first pipe section 102 extending into the wastewater inlet tank 100 and a second pipe section 103 extending out of the wastewater inlet tank 100. The tops of the first pipe section 102 and the second pipe section 103 are heat-fused together by pipe fittings. A solenoid valve 104 is installed at the outlet end of the second pipe section 103. The end can be connected to a timer and a PLC controller for convenient timed opening and closing for automatic water pumping. The solenoid valve 104 is threadedly connected to the outlet of the second pipe section 103. A filter screen cylinder 200 is installed at the inlet of the first pipe section 102. The top dimension of the filter screen cylinder 200 is larger than the dimension of the first pipe section 102. The top of the filter screen cylinder 200 is attached to the first pipe section 102 and fixed by bolts. The bottom of the filter screen cylinder 200 has several filter holes smaller than the filter opening 203. The filter screen cylinder 200 can be made of stainless steel. An external connection is provided at the inlet of the first pipe section 102. A filter frame 201, which may be made of stainless steel, is provided. A positioning plate 202 is provided on one side of the filter frame 201. The positioning plate 202 is welded to the filter frame 201. The positioning plate 202 is fixed to the inner wall of the sewage inlet tank 100 by means of steel plate and bolts or by welding. A downstream tee 300 is provided on the upper part of the solenoid valve 104. The downstream tee 300 includes a straight end and a branch end. The straight end of the downstream tee 300 is connected to the second pipe section 103 by means of glue or welding, thereby connecting the downstream tee 300 to the siphon pipe 101. The upper part of the straight end of the tee 300 is equipped with a first valve 301. The first valve 301 can be heat-fused to the second pipe section 103. The first valve 301 is fixed on the second pipe section 103. The branch end of the tee 300 is connected to a backwash pipe 400. The backwash pipe 400 and the branch end of the tee 300 are connected by heat fusion or glue. The inlet end of the backwash pipe 400 is equipped with a backwash pump 401. The backwash pump 401 and the backwash pipe 400 can be sealed by flange and bolts. The first valve 301 is normally open under correct conditions.

[0024] In use, the filter frame 201 and the filter port 203 installed on it reduce the probability of hard impurities entering the first pipe section 102, thereby reducing the probability of siphon pipe 101 clogging. Then, the filter screen cylinder 200 performs secondary filtration on the water inlet of the first pipe section 102, thereby reducing the probability of hard impurities entering the water inlet of the siphon pipe 101, thus reducing the probability of siphon pipe 101 clogging. By checking whether the flow meter 302 counts abnormalities, it is also possible to determine whether the siphon pipe 101 is clogged. Then, the second valve 402 can be opened to start the backwash pump 401 to replenish water to the backwash pipeline 400, thereby backwashing the siphon pipe 101 and preventing siphon pipe 101 from clogging, which is convenient for use.

[0025] This embodiment provides a siphon sampling device for wastewater influent from a wastewater treatment plant.

[0026] like Figure 2 , 3 As shown in Figures 4 and 5: The filter frame 201 is a cube and can be made of stainless steel. Each of the six sides of the filter frame 201 is provided with multiple filter ports 203 for blocking hard impurities. The filter frame 201, together with the filter ports 203, is used to reduce the probability of hard impurities entering the first pipe section 102. The top of the filter frame 201 is provided with an opening to facilitate the insertion of the first pipe section 102. The filter ports 203 are used to connect the filter frame 201 to the sewage inlet tank 100, thereby reducing the probability of the siphon pipe 101 being blocked. The inlet end of the first pipe section 102 extends into the filter frame 201.

[0027] Its effect is as follows: the filter frame 201 is provided with multiple filter ports 203 on all six sides to block hard impurities. The filter frame 201 and the filter ports 203 are used to reduce the probability of hard impurities entering the first pipe section 102, thereby reducing the probability of the siphon pipe 101 being blocked.

[0028] like Figure 1 , 2As shown in Figure 4: Multiple first clamps 500 are provided on the surface of the first pipe section 102. Each first clamp 500 and second clamp 501 comprises a circular clamp, a pair of connecting rods, and a pair of positioning seats. One end of the first clamp 500 is bolted to the first pipe section 102, and the other end is bolted to the inner wall of the sewage inlet tank 100. The first clamps 500 are used to connect the first pipe section 102 to the inner wall of the sewage inlet tank 100, thereby supporting the first pipe section 102, preventing it from shifting, and protecting the fittings on the siphon pipe 101. Each first clamp 500 is connected to the inner wall of the sewage inlet tank 100. Multiple second clamps 501 are provided on the surface of the second pipe section 103. The second clamps 501 are used to connect the second pipe section 103 to the outer wall of the sewage inlet tank 100, thereby supporting the second pipe section 103. The second clamps 501 are used to connect the second pipe section 103 to the outer wall of the sewage inlet tank 100, thereby supporting the second pipe section 103 and preventing the second pipe section 103 from shifting, thus protecting the service life of the fittings on the siphon pipe 101. Each second clamp 501 is connected to the outer wall of the sewage inlet tank 100.

[0029] Its effects are as follows: the first clamp 500 is used to connect the first pipe section 102 to the inner wall of the sewage inlet tank 100, thereby supporting the first pipe section 102 and preventing the first pipe section 102 from shifting, thus protecting the pipe fittings on the siphon pipe 101; the second clamp 501 is used to connect the second pipe section 103 to the outer wall of the sewage inlet tank 100, thereby supporting the second pipe section 103 and preventing the second pipe section 103 from shifting, thus protecting the service life of the pipe fittings on the siphon pipe 101.

[0030] like Figure 1 , 2 As shown: A second valve 402 is installed on the backwash pipe 400. The second valve 402 can be heat-fused to the backwash pipe 400 for fixation. The second valve 402 can be an electric valve. The second valve 402 is used to control the opening and closing of the backwash pipe 400 and the downstream tee 300. So when the backwash pipe 400 supplies backwash water, the backwash water can enter the second pipe section 103 and then backwash the siphon pipe 101.

[0031] Its effect is as follows: the second valve 402 is used to control the opening and closing of the backwash pipe 400 and the downstream tee 300, so that when the backwash pipe 400 supplies backwash water, the backwash water can enter the second pipe section 103, thereby backwashing the siphon pipe 101.

[0032] like Figure 1 , 2As shown in the figure: the flow meter 302 is arranged between the lower end of the straight-through end of the magnetic valve and the water three-way 300, the flow meter 302 is threadedly and sealingly connected with the second pipe section 103, the flow meter 302 is used for counting the sampling flow, the flow meter 302 is also used for judging whether the siphon 101 is blocked, when the flow meter 302 counts abnormally during sampling, remote alarm is performed, so as to open the second valve 402, and then the backwashing pump 401 is started to backwash the siphon 101, the water inlet end of the backwashing pump 401 is provided with a water supplement pipeline, the water supplement pipeline is provided with an electric valve, and the water inlet end of the water supplement pipeline is provided with a cleaning water tank for supplementing water for the backwashing pump 401.

[0033] The effect is that the flow meter 302 is used for counting the sampling flow, the flow meter 302 is also used for judging whether the siphon 101 is blocked, when the flow meter 302 counts abnormally during sampling, remote alarm is performed, so as to open the second valve 402, and then the backwashing pump 401 is started to backwash the siphon 101.

[0034] As shown in the figure: Figure 1 , 2 : the water outlet end of the electromagnetic valve 104 is communicated with the drain hose 303, the drain hose 303 can be fixed by a clamp and connected with the second pipe section 103, the drain hose 303 is used for guiding the water in the second pipe section 103 to the storage bucket 304, the bottom of the drain hose 303 is inserted with the movable storage bucket 304, the water outlet end of the drain hose 303 is inserted into the storage bucket 304, and the storage bucket 304 is convenient to replace during sampling.

[0035] The effect is that the drain hose 303 is used for guiding the water in the second pipe section 103 to the storage bucket 304, and the storage bucket 304 is convenient to replace during sampling.

[0036] Working principle: through the filter column 201 and the filter port 203 installed thereon, the probability of hard impurities entering the first pipe section 102 is reduced, thereby reducing the probability of siphon pipe 101 being blocked, and the filter screen cylinder 200 is used for secondary filtering of the water inlet end of the first pipe section 102, thereby reducing the probability of hard impurities entering the water inlet end of the siphon pipe 101, thereby reducing the probability of the siphon pipe 101 being blocked, the electromagnetic valve 104 is connected with the timer and PLC on the control electric box, water can be pumped every 4 hours, when the timer reaches the preset water pumping start time, the timer sends a time arrival signal to the PLC. After the PLC receives the signal, logical judgment is performed, a high-level signal is output to the control end of the electromagnetic valve 104, the electromagnetic valve 104 is opened, and the pipeline starts pumping water. At the same time that the electromagnetic valve 104 is opened, the PLC starts the internal timing function. When the pumping time reaches the preset time length, the PLC outputs a low-level signal to close the electromagnetic valve 104 and stop pumping, thereby achieving the effect of automatic pumping. After the completion of a pumping process, the PLC can control the electromagnetic valve 104 to be opened again according to the preset cycle time, and start a new round of pumping. The flowmeter 302 is used for counting whether it is abnormal, and whether the siphon pipe 101 is blocked, so that the second valve 402 can be opened, the electromagnetic valve 104 is closed, the backwashing pump 401 is started to supplement water to the backwashing pipeline 400, and the siphon pipe 101 is backwashed, and the waste water of the backwashing is finally flowed into the sewage inlet pool 100 from the first pipe section 102, so that the siphon pipe 101 is prevented from being blocked, and use is facilitated.

[0037] In addition, it should be further pointed out that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The above is the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A siphon sampling device for wastewater inlet of a wastewater treatment plant, comprising a siphon pipe (101) installed at the top of a wastewater inlet tank (100), the siphon pipe (101) comprising a first pipe section (102) extending into the wastewater inlet tank (100) and a second pipe section (103) extending out of the wastewater inlet tank (100), wherein a solenoid valve (104) is installed at the outlet end of the second pipe section (103), characterized in that: A filter screen cylinder (200) is provided at the water inlet end of the first pipe section (102). A filter frame (201) is provided outside the water inlet end of the first pipe section (102). A positioning plate (202) is provided on one side of the filter frame (201). The positioning plate (202) is connected to the inner wall of the sewage inlet pool (100). A tee (300) is provided on the upper part of the solenoid valve (104). A first valve (301) is provided on the upper part of the straight end of the tee (300). The first valve (301) is fixed on the second pipe section (103). A backwash pipe (400) is provided at the branch end of the tee (300). A backwash pump (401) is provided at the water inlet end of the backwash pipe (400).

2. The siphon-type sampling device for wastewater treatment plant influent as described in claim 1, characterized in that: The filter frame (201) is a cube, and each of the six sides of the filter frame (201) is provided with a plurality of filter ports (203) for blocking hard impurities. The water inlet end of the first pipe section (102) extends into the filter frame (201).

3. The siphon-type sampling device for wastewater treatment plant influent as described in claim 2, characterized in that: The surface of the first pipe section (102) is provided with a plurality of first clamps (500), each of which is connected to the inner wall of the sewage inlet pool (100). The surface of the second pipe section (103) is provided with a plurality of second clamps (501), each of which is connected to the outer wall of the sewage inlet pool (100).

4. The siphon-type sampling device for wastewater treatment plant influent as described in claim 3, characterized in that: A second valve (402) is installed on the backwash pipe (400).

5. The siphon-type sampling device for wastewater treatment plant influent as described in claim 4, characterized in that: A flow meter (302) is provided between the lower end of the solenoid valve (104) and the straight end of the tee (300).

6. The siphon-type sampling device for wastewater treatment plant influent as described in claim 5, characterized in that: The outlet end of the solenoid valve (104) is connected to a drain hose (303), and a movable water storage tank (304) is inserted into the bottom of the drain hose (303).

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