Overflow sewage sampling device for combined system pipeline

Abstract

The utility model relates to the technical field of water quality monitoring, and discloses a combined system pipeline overflow sewage sampling device which comprises a shell, a water storage cavity is integrally formed in the shell, a floating ball is suspended in the water storage cavity, an opening, close to the top, of the water storage cavity shrinks inwards to form a limiting ring, and the limiting ring is connected with the floating ball. A hole-shaped flow channel is formed in the center of the limiting ring; a containing cavity is formed in the shell. The sampling device for the overflow sewage of the combined system pipeline solves the problems that a manual sampling method in the prior art needs long-time guarding of workers, the labor intensity is high, and the cost is high; existing sampler equipment is expensive and needs to be pumped through an independent pipeline, faults such as pipeline blockage are prone to occurring, and equipment installed on the ground is prone to being stolen or damaged. An overflow water sample with high pollution degree in the initial stage is difficult to accurately collect; a flexible sampling control mode is lacked, and different rainfall conditions cannot be adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality monitoring, in particular to a combined sewer overflow sewage sampling device. Background Art

[0002] A combined sewer system is a pipe system that discharges domestic sewage, industrial wastewater and rainwater in the same pipe. The most commonly used is the intercepting combined sewer system, which is a system that sets up interception wells on the intercepting pipes near the river. During rainfall, overflow sewage will be generated. These overflow sewage contains a large amount of pollutants, which has a serious impact on the water environment.

[0003] In order to effectively monitor and treat overflow sewage, it is necessary to sample and analyze the combined sewer system. However, existing sampling methods have the following problems:

[0004] ①The manual sampling method requires staff to be on duty for a long time, which is labor-intensive and costly;

[0005] ② Existing sampler equipment is expensive and requires separate pipeline pumping, which is prone to pipeline blockage and other failures. In addition, equipment installed on the ground is also prone to theft or damage;

[0006] ③It is difficult to accurately collect overflow water samples with high initial pollution levels;

[0007] ④ Lack of flexible sampling control methods and unable to adapt to different rainfall conditions.

[0008] Therefore, there is an urgent need for an overflow sewage sampling device that can automatically sample, is easy to install, and is simple to maintain. Utility Model Content

[0009] In view of the deficiencies in the prior art, the present invention provides a combined sewer overflow sewage sampling device, which solves the problems mentioned in the above background.

[0010] The utility model provides the following technical solution: a combined sewer overflow sewage sampling device, comprising: a housing, a water storage chamber integrally formed inside the housing, a float suspended inside the water storage chamber, an opening near the top of the water storage chamber contracting inwardly to form a limit ring, a hole-shaped flow channel provided at the center of the limit ring;

[0011] The housing is provided with an accommodating cavity, which is divided into an upper and lower space by a partition. A water pump is installed in the lower space of the accommodating cavity. The water inlet of the water pump penetrates the housing and extends into the water storage cavity. The water outlet of the water pump penetrates the housing and is connected to a water sample bottle through a provided water pumping pipe. An energy storage battery is installed in the upper space of the accommodating cavity.

[0012] An anchoring ring is provided on the outer edge of the shell near the top, and a fixing rope is hung on the anchoring ring.

[0013] Preferably, the water inlet and outlet of the water pump penetrating the shell are both sealed with sealant for waterproofing.

[0014] Preferably, the space of the water storage chamber located in the upper half of the shell is cylindrical, and the float floats up and down in the cylindrical space of the water storage chamber. The space of the water storage chamber located in the lower half of the shell is funnel-shaped, and the width of the intersection of the cylindrical and funnel-shaped spaces of the water storage chamber is smaller than the diameter of the float.

[0015] Preferably, a disassembly cover is sealed on the top of the accommodating cavity, and the disassembly cover is located directly above the energy storage battery.

[0016] Preferably, a wire tube is sealed on the outer edge of the shell, and the wires of the water pump and the energy storage battery are connected to the outside of the shell through the wire tube. The wires of the water pump are connected to a control switch at the end of the wire tube.

[0017] Preferably, a vent pipe is provided at the bottom of the shell, and a valve is installed on the vent pipe.

[0018] Preferably, the bottom of the limiting ring is a concave arc surface, and the shape of the arc surface at the bottom of the limiting ring is consistent with the shape of the surface of the float.

[0019] Preferably, the entire housing is immersed in water.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The combined sewer overflow sewage sampling device reserves a water storage chamber for collecting sewage in the shell and adds a float in the water storage chamber. When the sewage is collected to a certain level, the float is used to block the top water inlet, eliminating the need for staff to monitor the collection progress. A water pump and energy storage battery are provided, and sampling can be manually controlled at any time after overflow sewage occurs. This is both economical and can accurately monitor, reducing the energy consumed by manual sampling.

[0022] 2. The combined sewer overflow sewage sampling device is equipped with an anchor ring and is hung on the anchor ring with a fixed rope. The sampling device is suspended as a whole in the overflow well, eliminating the need for pumping through a separate pipeline. This avoids pipeline blockage and other faults and equipment loss, making maintenance and management easier.

[0023] 3. The combined sewer overflow sewage sampling device sets the sewage collection inlet at the top of the sampling device. After the sampling device is immersed in water, the sampling device can only collect the initial high-pollution overflow sewage samples floating on the water surface.

[0024] 4. The combined sewer overflow sewage sampling device is equipped with a float. When the water level rises as the rainwater in the overflow well increases, after a certain amount of initial sewage is collected in the sampling device, the floating ability of the float will be used to block the water inlet to prevent the sewage that has entered the sampling device from flowing out. In addition, it can also block the water that overflows the sampling device to prevent external sewage from mixing with the collected initial highly polluted sewage, thereby improving the flexibility of the device and enabling it to adapt to different rainfall conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the front cross-section structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the side sectional structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the cross-sectional top view of the energy storage battery of the utility model;

[0029] Figure 5 This is a schematic diagram of the cross-section of the water pump of the utility model from a top view;

[0030] Figure 6 This is a structural diagram of the utility model's floating ball in a falling state.

[0031] In the figure: 1. Shell; 2. Water storage chamber; 3. Accommodation chamber; 4. Float; 5. Water pump; 6. Energy storage battery; 7. Partition; 8. Anchor ring; 9. Fixing rope; 10. Water suction pipe; 11. Water sample bottle; 12. Wire pipe; 13. Control switch; 14. Vent pipe; 15. Disassembly and repair cover; 16. Limiting ring. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-6 A combined sewer overflow sewage sampling device comprises: a housing 1, a water storage chamber 2 integrally formed within the housing 1, a float 4 suspended within the water storage chamber 2, an opening near the top of the water storage chamber 2 contracting inwardly to form a limit ring 16, a hole-shaped flow channel provided at the center of the limit ring 16;

[0034] The housing 1 has an accommodating chamber 3 formed therein. The interior of the accommodating chamber 3 is divided into an upper and lower space by a partition 7. A water pump 5 is installed in the lower space of the accommodating chamber 3. The water inlet of the water pump 5 penetrates the housing 1 and extends into the water storage chamber 2. The water outlet of the water pump 5 penetrates the housing 1 and is connected to a water sample bottle 11 through a water pumping pipe 10. An energy storage battery 6 is installed in the upper space of the accommodating chamber 3.

[0035] An anchoring ring 8 is provided on the outer edge of the housing 1 near the top, and a fixing rope 9 is hung on the anchoring ring 8 .

[0036] Among them, the water inlet and outlet of the water pump 5 that penetrate the shell 1 are all sealed with sealant for waterproofing, and the gaps penetrated by the accommodating cavity 3 are all blocked to prevent water from entering the accommodating cavity 3 and ensure the safe operation of electronic components.

[0037] Among them, the space of the water storage chamber 2 located in the upper half of the shell 1 is cylindrical, and the float 4 floats up and down in the cylindrical space of the water storage chamber 2. The space of the water storage chamber 2 located in the lower half of the shell 1 is funnel-shaped, and the width of the intersection of the cylindrical and funnel-shaped spaces of the water storage chamber 2 is smaller than the diameter of the float 4. The float 4 is stuck in the cylindrical part by utilizing the intersection angle of the cylindrical and funnel-shaped spaces, so that the float 4 can directly block the water inlet as the sewage increases. At the same time, the sewage that initially enters the sampling device can flow into the funnel-shaped part through the float 4, and there will be no situation where the cylindrical bottom is blocked by the float 4, causing the sewage to be unable to enter.

[0038] Among them, a disassembly cover 15 is sealed and installed on the top of the accommodating chamber 3. The disassembly cover 15 is located directly above the energy storage battery 6. When damage occurs inside the sampling device, the disassembly cover 15 can be directly removed to replace the energy storage battery 6, and then the partition 7 can be removed to inspect the water pump 5.

[0039] Among them, a wire tube 12 is sealed on the outer edge of the shell 1, and the wires of the water pump 5 and the energy storage battery 6 are connected to the outside of the shell 1 through the wire tube 12. The wires of the water pump 5 are connected to a control switch 13 at the end of the wire tube 12. The wire tube 12 is used to isolate the wires of the water pump 5 and the energy storage battery 6 located outside the shell 1 from contact with sewage, so that the wires of the water pump 5 and the energy storage battery 6 can pass through the sewage and reach the shore without being corroded by the sewage.

[0040] Among them, a vent pipe 14 is provided at the bottom of the shell 1, and a valve is installed on the vent pipe 14. The vent pipe 14 is used to open and close the bottom of the water storage chamber 2 to facilitate the emptying of sewage inside the water storage chamber 2 and cleaning the inside of the water storage chamber 2.

[0041] Among them, the bottom of the limiting ring 16 is a concave arc surface, and the shape of the arc surface at the bottom of the limiting ring 16 is consistent with the shape of the surface of the float 4. When the float 4 is affected by the rising sewage and contacts the bottom of the limiting ring 16, the matching shape can make the float 4 completely embedded in the limiting ring 16, thereby improving the sealing effect of the float 4 when it is blocked.

[0042] Among them, the entire shell 1 is immersed in water, and the counterweight of the shell 1 is increased so that the shell 1 will not be affected by the internal water storage chamber 2 and the accommodating chamber 3. Without being suspended, it can be suspended until the sewage overflows the shell 1, thereby achieving the effect of collecting highly polluted sewage in the early stage of the sewage surface.

[0043] The collection device collects sewage using the following steps, including:

[0044] S1: Hang the sampling device in the overflow well by fixing the rope 9 and adjust the height so that it can collect the initial overflow sewage;

[0045] S2: During rainfall, when the overflow water level reaches the height of the device’s water inlet, the water sample automatically flows into the water storage chamber 2;

[0046] S3: As the water level rises, the float 4 rises and closes the water inlet when it reaches the preset height to prevent subsequent water samples from entering;

[0047] S4: After the rain, the staff manually starts the control switch 13 and uses the water pump 5 to take samples;

[0048] S5: The water pump 5 extracts the water sample from the water storage chamber 2 and sends it to the water sample bottle 11 through the water pump pipe 10 to facilitate the staff to analyze;

[0049] S6: After the analysis is completed, the water storage chamber 2 is emptied by the water pump 5 or the emptying pipe 14 is opened to empty the sewage in preparation for the next sampling;

[0050] S7: Regularly check the firmness of the fixing rope 9 to ensure the safety of the device;

[0051] S8: Clean the water storage chamber 2 and the water inlet regularly to prevent blockage;

[0052] S9: Regularly check and charge the energy storage battery 6 to ensure that there is enough power to support multiple samplings.

[0053] Although the 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. A combined sewer overflow sewage sampling device, characterized in that: include: A shell (1), wherein a water storage chamber (2) is integrally formed inside the shell (1), a float (4) is suspended inside the water storage chamber (2), an opening near the top of the water storage chamber (2) contracts inwardly to form a limiting ring (16), and a hole-shaped flow channel is provided at the center of the limiting ring (16); The housing (1) has an accommodating chamber (3) formed therein, the interior of the accommodating chamber (3) being divided into an upper and lower space by a partition (7). A water pump (5) is installed in the lower space of the accommodating chamber (3). The water inlet of the water pump (5) penetrates the housing (1) and extends into the water storage chamber (2). The water outlet of the water pump (5) penetrates the housing (1) and is connected to a water sample bottle (11) via a provided water pumping pipe (10). An energy storage battery (6) is installed in the upper space of the accommodating chamber (3). An anchoring ring (8) is provided on the outer edge of the shell (1) near the top, and a fixing rope (9) is hung on the anchoring ring (8).

2. A combined sewer overflow sewage sampling device according to claim 1, characterized in that: The water inlet and outlet of the water pump (5) penetrating the housing (1) are both sealed with sealant for waterproofing.

3. The combined sewer overflow sewage sampling device according to claim 1, characterized in that: The space of the water storage chamber (2) located in the upper half of the shell (1) is cylindrical, and the float (4) floats up and down in the cylindrical space of the water storage chamber (2). The space of the water storage chamber (2) located in the lower half of the shell (1) is funnel-shaped, and the width of the intersection of the cylindrical and funnel-shaped spaces of the water storage chamber (2) is smaller than the diameter of the float (4).

4. A combined sewer overflow sewage sampling device according to claim 1, characterized in that: A disassembly cover (15) is sealedly mounted on the top of the accommodating cavity (3), and the disassembly cover (15) is located directly above the energy storage battery (6).

5. The combined sewer overflow sewage sampling device according to claim 1, characterized in that: A wire tube (12) is sealed on the outer edge of the housing (1), and the wires of the water pump (5) and the energy storage battery (6) are connected to the outside of the housing (1) through the wire tube (12). The wires of the water pump (5) are connected to a control switch (13) at the end of the wire tube (12).

6. The combined sewer overflow sewage sampling device according to claim 1, characterized in that: A vent pipe (14) is provided at the bottom of the shell (1), and a valve is installed on the vent pipe (14).

7. The combined sewer overflow sewage sampling device according to claim 1, characterized in that: The bottom of the limiting ring (16) is an inwardly concave arc surface, and the shape of the arc surface at the bottom of the limiting ring (16) is consistent with the shape of the surface of the float (4).

8. The combined sewer overflow sewage sampling device according to claim 1, characterized in that: The entire shell (1) is immersed in water.

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