Sampler for gravel in sewage
By designing a sand and gravel sampler in sewage, the problem of poor operation of the sand settling system in the water purification plant was solved, the effective collection and analysis of sand and gravel samples was achieved, the cost was reduced, and the practicality of the equipment was improved.
Patent Information
- Application Number
- CN202421734278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The grit settling system in the water treatment plant operated poorly, with insufficient sand output and sand accumulation, which affected subsequent equipment and structures. There was a lack of effective sand and gravel samplers for analysis.
A sewage gravel sampler was designed, which included a sampling bucket, a sampling tube, a support column, an overflow weir, an outlet pipe, and a ball valve to ensure that the gravel settled at the bottom of the sampler. The sedimentation process was controlled by adjusting the flow rate. The sampling bucket could be made of a trash can or a plastic drum to reduce costs.
The utility of the gravel sampler is improved, the production cost is reduced, the use is convenient, the effective collection and analysis of gravel samples are ensured, and the labor intensity of the staff is reduced.
Smart Images
Figure CN223332672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment, in particular to a sand and gravel sampler in sewage. Background Art
[0002] The grit sampler in sewage is a special tool used to extract grit samples from sewage for analysis. It is widely used in urban sewage treatment, environmental monitoring, water resources management and other fields. The grit sampler in sewage is an important environmental monitoring tool and is of great significance for evaluating water quality and protecting water resources.
[0003] The grit chambers of many water treatment plants have a short residence time, poor operating performance, and sand output far below the original design level. In addition, there is varying degrees of sand accumulation in the inlet channel of the biological pool, which has varying degrees of impact on subsequent equipment and structures. Therefore, a sewage sand and gravel sampler is proposed to solve the problem of sand sampling and analysis in sewage, and thus provide a reference for subsequent upgrades, renovations, and operations. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides a sand and gravel sampler in sewage, which has the advantages of collecting sand and gravel above 75um in sewage, solving the problem of poor operation effect of the sand settling system in the water purification plant and the difficulty of monitoring the relevant parameters of the sand settling tank.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand and gravel sampler in sewage, comprising a sampling bucket, the bottom of the sampling bucket is fixedly connected to a sampling tube for discharging sand samples, the bottom of the sampling bucket is fixedly connected to four support columns for stable support, the interior of the sampling bucket is fixedly connected to an overflow weir, the left side of the sampling bucket is fixedly connected to a first water outlet pipe, the left side of the sampling bucket is fixedly connected to a water inlet pipe, and the right side of the sampling bucket is fixedly connected to a second water outlet pipe.
[0006] Furthermore, a sand settling area for sand settling is provided at the bottom of the sampling barrel, and the diameter of the sampling barrel is 600 mm.
[0007] Furthermore, the weir plate of the overflow weir is 560 mm wide, 150 mm high, and the top of the weir plate is 100 mm away from the top of the barrel.
[0008] Furthermore, the sampling barrel can be made from any container, including a trash can, a plastic drum, and a round storage barrel.
[0009] Furthermore, the diameters of the sampling pipe, the first water outlet pipe, the water inlet pipe and the second water outlet pipe are DN40.
[0010] Furthermore, a ball valve for regulating flow is provided on the outside of the water inlet pipe, and valves for controlling switches are provided on the sampling pipe, the first water outlet pipe and the second water outlet pipe.
[0011] Furthermore, the second water outlet pipe is located 300 mm above the bottom sampling pipe, and the second water outlet pipe is used to drain the supernatant during sample collection.
[0012] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0013] 1. The sand and gravel sampler in sewage solves the difficult problem of sand sample detection in sewage by arranging a sampling bucket, a sampling tube, a support column, an overflow weir, a first outlet pipe, a water inlet pipe, a second outlet pipe, a sand settling area, a ball valve and a valve, thereby facilitating the use of users and improving the practicality of the sand and gravel sampler.
[0014] 2. The sampling bucket of the sand and gravel sampler in sewage can be made and processed with any container, including trash cans, plastic drums and round storage buckets, thereby reducing the production cost of the sand and gravel sampler. By setting an overflow weir on the top of the sampling bucket, it is ensured that the sand and gravel sink to the bottom of the sampler, which is convenient for users to use and increases the practicality of the sand and gravel sampler. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the sampling barrel structure of the utility model.
[0017] In the figure: 1. Sampling bucket; 2. Sampling tube; 3. Support column; 4. Overflow weir; 5. First outlet pipe; 6. Inlet pipe; 7. Second outlet pipe; 8. Sand settling area; 9. Ball valve; 10. Valve. DETAILED DESCRIPTION
[0018] The following will be combined with the accompanying 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.
[0019] See also Figures 1 to 2The gravel sampler in sewage in this embodiment includes a sampling bucket 1. A sand settling area 8 for sand settling is provided at the bottom of the sampling bucket 1. The diameter of the sampling bucket 1 is 600 mm. A sampling tube 2 for discharging sand samples is fixedly connected to the bottom of the sampling bucket 1. Four support columns 3 for stable support are fixedly connected to the bottom of the sampling bucket 1. An overflow weir 4 is fixedly connected to the inside of the sampling bucket 1. A first water outlet pipe 5 is fixedly connected to the left side of the sampling bucket 1. A water inlet pipe 6 is fixedly connected to the left side of the sampling bucket 1. A second water outlet pipe 7 is fixedly connected to the right side of the sampling bucket 1. The diameters of the sampling tube 2, the first water outlet pipe 5, the water inlet pipe 6 and the second water outlet pipe 7 are DN40. The second water outlet pipe 7 is located 300 mm above the bottom sampling tube 2. The second water outlet pipe 7 is used to drain the supernatant when collecting samples.
[0020] It should be noted that sand samples were collected from sewage for analysis and testing.
[0021] See also Figures 1 to 2 In this embodiment, the weir plate of the overflow weir 4 is 560 mm wide, 150 mm high, and the top of the weir plate is 100 mm away from the top of the barrel.
[0022] It should be noted that an overflow weir 4 is provided on the top of the sampling barrel 1 to ensure that the sand and gravel are settled at the bottom of the sampler.
[0023] See also Figures 1 to 2 In this embodiment, the sampling barrel 1 can be made of any container, including a trash can, a plastic barrel, and a round storage barrel.
[0024] It should be noted that the production cost of the gravel sampler is reduced, the operation is convenient, and the labor intensity of the staff can be greatly reduced.
[0025] See also Figures 1 to 2 In this embodiment, a ball valve 9 for regulating the flow rate is provided on the outside of the water inlet pipe 6, and valves 10 for controlling the switch are provided on the sampling tube 2, the first water outlet pipe 5 and the second water outlet pipe 7.
[0026] It should be noted that, by providing the ball valve 9 , it is convenient to adjust the water flow rate of the water inlet pipe 6 to ensure that the sedimentation process is the same.
[0027] The working principle of the above embodiment is: the sand and gravel sampler in sewage,
[0028] 1) When in use, the sampling barrel 1 can be made of any container, including a trash can, a plastic barrel, and a round storage barrel, thereby reducing the production cost of the gravel sampler. The water inlet pipe 6 is installed at the center of the sampling barrel 1 to ensure that the water sample enters from the center of the sampling barrel 1. After entering the sampling barrel 1, the water sample enters along the tangent of the surface of the sampling barrel 1, ensuring that the water flows into the barrel and generates a rotating centrifugal force.
[0029] 2) An overflow weir 4 is set at the top of the sampling barrel 1 to ensure that the fine sand particles in the first outlet pipe 5 are minimized. A ball valve 9 is set on the outside of the water inlet pipe 6 to facilitate the adjustment of the water inlet flow of the water inlet pipe 6. The second drain pipe 7 is located about 300 mm above the bottom sampling pipe 2 to facilitate the emptying of the supernatant generated during sample collection.
[0030] 3) The rising velocity of water should be controlled at 0.003m / s or less. For the sampling barrel 1, the diameter is 600mm, and the allowable flow rate is 0.76L / s (2.73m 3 / h) or less. At this flow rate, it can ensure that 50um sand particles are effectively collected. For the sake of insurance, we generally control the flow rate at 0.57L / s (2.05m 3 / h)—0.61L / s(2.19m 3 / h), the inlet flow rate must be kept as consistent as possible during sampling to ensure that the sedimentation process is the same.
[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0032] 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 sand and gravel sampler in sewage, comprising a sampling barrel (1), characterized in that: The bottom of the sampling barrel (1) is fixedly connected to a sampling tube (2) for discharging sand samples, the bottom of the sampling barrel (1) is fixedly connected to four support columns (3) for stable support, the interior of the sampling barrel (1) is fixedly connected to an overflow weir (4), the left side of the sampling barrel (1) is fixedly connected to a first water outlet pipe (5), the left side of the sampling barrel (1) is fixedly connected to a water inlet pipe (6), and the right side of the sampling barrel (1) is fixedly connected to a second water outlet pipe (7).
2. The sand and gravel sampler in sewage according to claim 1, characterized in that: A sand settling area (8) for sand settling is provided at the bottom of the sampling barrel (1), and the diameter of the sampling barrel (1) is 600 mm.
3. The sand and gravel sampler in sewage according to claim 1, characterized in that: The weir plate of the overflow weir (4) is 560 mm wide, 150 mm high, and the distance between the top of the weir plate and the top of the barrel is 100 mm.
4. The sand and gravel sampler in sewage according to claim 1, characterized in that: The sampling barrel (1) can be made from any container, including a trash can, a plastic drum, and a round storage barrel.
5. The sewage gravel sampler according to claim 1, characterized in that: The diameters of the sampling pipe (2), the first water outlet pipe (5), the water inlet pipe (6) and the second water outlet pipe (7) are DN40.
6. The sand and gravel sampler in sewage according to claim 1, characterized in that: A ball valve (9) for regulating flow is provided on the outside of the water inlet pipe (6), and valves (10) for controlling switching are provided on the sampling pipe (2), the first water outlet pipe (5), and the second water outlet pipe (7).
7. The sand and gravel sampler in sewage according to claim 1, characterized in that: The second water outlet pipe (7) is located 300 mm above the bottom sampling pipe (2), and the second water outlet pipe (7) is used to drain the supernatant during sample collection.