Surface water sampling, filtering and settling integrated device

Abstract

The utility model provides a surface water sampling, filtering and settling integrated device, which relates to the technical field of environment detection devices, and comprises a dust cover, a filtering barrel, a settling barrel, a positioning block, a floating plate and a siphon, the dust cover is arranged on an opening at the top of the filtering barrel, an air hole is arranged on the dust cover, a filter screen is detachably arranged in the filtering barrel, and the settling barrel is arranged on the positioning block. The bottom of the filter vat is communicated with an opening in the top of the settling vat, positioning blocks are installed in the settling vat, the floating plate is arranged between the positioning blocks in a floating mode, the lower portion of the siphon is installed on the floating plate, the water suction end of the siphon is arranged below the floating plate, and the water outlet end of the siphon penetrates through a connecting pipe on the side wall of the settling vat and extends out of the settling vat. The problems that an existing manual sampling device is low in filtering speed and long in consumed time, it is difficult to guarantee that a siphon water inlet sharp nozzle is inserted into the position 50 mm below the surface layer of a water sample during manual operation, and the water sample settled at the bottom is moved and taken due to the fact that manual operation is easily controlled improperly can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection devices, in particular to a surface water sampling, filtering and sedimentation integrated device. Background Art

[0002] The "Technical Specifications for Surface Water Environmental Quality Monitoring" (HJ91.2-2022) and the "Technical Guidance for Water Quality Sampling" (HJ494-2009) have the following provisions: When the collected water samples contain obvious algae, all the water samples can be passed through the filter screen and poured into a static container. After ensuring that there is enough required amount, let it stand naturally for 30 minutes, use a siphon to take the upper water sample, and transfer it to a sample bottle; the collected water samples are poured into a static container to ensure that there is enough amount. When standing naturally, use a dust cover to cover it to avoid dust contamination; use a siphon device to take the upper water sample that does not contain settleable solids, and transfer it to the sample bottle. The water inlet nozzle of the siphon device should be kept inserted 50 mm below the surface of the water sample.

[0003] Since surface water sampling, filtration and sedimentation are generally required to be completed on site, there are the following problems during on-site operation: first, when there are many algae in the water sample, the filtration speed is slow, it takes a long time, and it is easy to be contaminated by dust during the process; second, the liquid level continues to drop during siphon packaging, and it is difficult to ensure that the siphon tube water inlet tip is inserted to a position below 50mm of the water sample surface during manual operation; third, manual operation is prone to improper control and transfer of water samples that settle at the bottom. Therefore, this application proposes an integrated device for surface water sampling, filtration and sedimentation. Utility Model Content

[0004] In order to overcome the problems in the background technology, the utility model provides an integrated device for surface water sampling, filtration and sedimentation, which solves the problems of slow filtration speed and long time consumption of existing manual sampling devices, difficulty in ensuring that the water inlet nozzle of the siphon tube is inserted to a position below 50 mm of the water sample surface during manual operation, and easy improper control during manual operation, which may result in the water sample being transferred to the bottom and settled.

[0005] A surface water sampling, filtering and sedimentation integrated device comprises a dust cover, a filter barrel, a sedimentation barrel, a positioning block, a floating plate and a siphon tube, wherein the dust cover is mounted on an opening at the top of the filter barrel, an air hole is provided on the dust cover, a filter screen is detachably mounted in the filter barrel, the bottom of the filter barrel is connected and mounted on the opening at the top of the sedimentation barrel, a positioning block is mounted on the inside of the sedimentation barrel, a floating plate is floatingly arranged between the positioning blocks, the lower part of the siphon tube is mounted on the floating plate, the water suction end of the siphon tube is arranged below the floating plate, and the water outlet end of the siphon tube passes through a connecting pipe on the side wall of the sedimentation barrel and extends out of the sedimentation barrel.

[0006] Furthermore, the protruding length of the siphon tube below the floating plate is 50 mm, and the siphon tube has a distance from the bottom of the sedimentation barrel due to the maximum sinking distance of the floating plate between the positioning blocks.

[0007] Furthermore, the siphon tube includes an inlet pipe section and an outlet pipe section, one end of the inlet pipe section is installed on the floating plate, and the other end is connected to the inner end of the connecting pipe, an air bag is provided on the outlet pipe section, one end of the outlet pipe section is connected to the outer end of the connecting pipe, and the other end is installed with a rubber plug.

[0008] Furthermore, an air extraction pipe is provided on the side wall of the upper portion of the settling barrel and can be connected to the water outlet pipe section.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The present application is provided with a dust cover to avoid dust pollution when it is naturally still. The present application is provided with a filter barrel and a sedimentation barrel to solve the problems of slow filtering speed and long time consumption of existing manual sampling devices. The present application is provided with a positioning block, a floating plate and a siphon tube to solve the problem that it is difficult to ensure that the water inlet nozzle of the siphon tube is kept inserted to a position below 50mm of the surface of the water sample during existing manual operation, and the problem that manual operation is prone to improper control and the water sample is transferred to the bottom and settled. The pre-treatment process of surface water sampling can be improved, the operation is convenient and the efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in describing the embodiments are described.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0014] 1-dust cover, 11-air hole, 2-filter barrel, 21-filter screen, 3-sedimentation barrel, 31-connecting pipe, 32-exhaust pipe, 4-positioning block, 5-floating plate, 6-siphon, 61-water inlet pipe section, 62-water outlet pipe section, 7-air bag. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0016] The utility model discloses a surface water sampling, filtering and sedimentation integrated device, see Figure 1-2A surface water sampling, filtering and sedimentation integrated device comprises a dust cover 1, a filter barrel 2, a sedimentation barrel 3, a positioning block 4, a floating plate 5 and a siphon tube 6, wherein the dust cover 1 is installed on the opening at the top of the filter barrel 2, an air hole 11 is opened on the dust cover 1, a filter screen 21 is detachably installed in the filter barrel 2, the bottom of the filter barrel 2 is connected and installed on the opening at the top of the sedimentation barrel 3, a positioning block 4 is installed inside the sedimentation barrel 3, a floating plate 5 is floatingly arranged between the positioning blocks 4, the lower part of the siphon tube 6 is installed on the floating plate 5, the water suction end of the siphon tube 6 is arranged below the floating plate 5, and the water outlet end of the siphon tube 6 passes through the connecting pipe 31 on the side wall of the sedimentation barrel 3 and extends out of the sedimentation barrel 3.

[0017] The dust cover 1 can prevent dust pollution when it is naturally still. The filter barrel 2 is a deep barrel structure. The filtering speed can be accelerated by increasing the water pressure. The filter screen 21 in the filter barrel 2 can be replaced and installed with different mesh sizes as required. The lower end of the filter barrel 2 is designed to be connected to the sedimentation barrel 3 with a threaded or bayonet type. The side walls in the sedimentation barrel 3 are provided with upper and lower positioning blocks 4 structures, and a floating plate 5 made of lightweight materials such as PE is installed in the middle. The water inlet end of the siphon tube 6 runs through the center of the floating plate, and the water inlet nozzle at the lower end extends out of the bottom of the floating plate 5 by 50 mm. The upper end extends out of the sedimentation barrel 3 through the connecting pipe 31 to siphon out the settled sample.

[0018] See also Figure 1-2 The protruding length of the siphon tube 6 below the floating plate 5 is 50 mm. The floating plate 5 is used to float to ensure that the water inlet tip of the siphon tube is kept inserted 50 mm below the surface of the water sample. The siphon tube 6 has a maximum sinking distance between the positioning blocks 4 through the floating plate 5 and a distance from the bottom of the sedimentation barrel 3, which can avoid the problem of improper control of manual operation and the transfer of water samples that have settled to the bottom.

[0019] See also Figure 1-2 The siphon pipe 6 includes an inlet pipe section 61 and an outlet pipe section 62. One end of the inlet pipe section 61 is installed on the floating plate 5, and the other end is connected to the inner end of the connecting pipe 31, which is convenient for disassembly and cleaning. An air bag 7 is arranged on the outlet pipe section 62. One end of the outlet pipe section 62 is connected to the outer end of the connecting pipe 31, and the other end is installed with a rubber plug 7, which is convenient for pressing the siphon.

[0020] See also Figure 1-2 The upper side wall of the sedimentation barrel 3 is provided with an air extraction pipe 32 with a rubber plug, which can be connected to the water outlet pipe section 62. By connecting the water outlet pipe section 62, negative pressure can be generated through the air bag 7 to accelerate the filtration speed.

[0021] Working process:

[0022] The device is placed on a flat surface. The collected water sample is poured into the filter barrel 2 and quickly covered with the dust cover 1. The dust cover 1 is provided with a vent 11. The water sample flows into the sedimentation barrel 3 after being filtered through the filter screen 21. After the liquid level rises, the floating plate 5 is lifted up. After reaching the positioning block 4 above, the filtration is completed. At this time, the filter barrel 2 is removed, and the dust cover 1 is covered on the sedimentation barrel 3. The water sample is allowed to stand for 30 minutes before the water sample can be dispensed. The water sample is extracted from the sedimentation barrel 3 through the water inlet pipe section 61 of the siphon 6 and then flows out from the water outlet pipe section 62. The floating plate 5 drops with the liquid level. Since the size of the siphon 6 passing through the bottom of the floating plate 5 is 50 mm, it can ensure that the water sample 50 mm below the water surface is always dispensed. When the liquid level drops to the positioning block 4 below, the siphon will automatically stop siphoning to prevent the water sample from being transferred to the bottom sedimentation. Only one person is required to independently complete the filtration, sedimentation and dispensing of the sample, without the need for a special person to control the position of the siphon under water, which can effectively improve the work efficiency and ensure the sampling quality.

[0023] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surface water sampling, filtration and sedimentation integrated device, characterized in that: The invention comprises a dust cover (1), a filter barrel (2), a sedimentation barrel (3), a positioning block (4), a floating plate (5) and a siphon tube (6), wherein the dust cover (1) is mounted on an opening at the top of the filter barrel (2), an air hole (11) is provided on the dust cover (1), a filter screen (21) is detachably mounted in the filter barrel (2), the bottom of the filter barrel (2) is connected and mounted on the opening at the top of the sedimentation barrel (3), a positioning block (4) is mounted inside the sedimentation barrel (3), the floating plate (5) is floatingly arranged between the positioning blocks (4), the lower part of the siphon tube (6) is mounted on the floating plate (5), the water suction end of the siphon tube (6) is arranged below the floating plate (5), and the water outlet end of the siphon tube (6) passes through a connecting pipe (31) on the side wall of the sedimentation barrel (3) and extends out of the sedimentation barrel (3).

2. The surface water sampling, filtration and sedimentation integrated device according to claim 1, characterized in that: The siphon tube (6) extends 50 mm below the floating plate (5), and a distance is left between the siphon tube (6) and the bottom of the sedimentation barrel (3) through the maximum sinking distance between the positioning blocks (4) of the floating plate (5).

3. The surface water sampling, filtration and sedimentation integrated device according to claim 1, characterized in that: The siphon pipe (6) comprises a water inlet pipe section (61) and a water outlet pipe section (62); one end of the water inlet pipe section (61) is mounted on the floating plate (5) and the other end is connected to the inner end of the connecting pipe (31); an air bag (7) is arranged on the water outlet pipe section (62); one end of the water outlet pipe section (62) is connected to the outer end of the connecting pipe (31) and the other end is mounted with a rubber plug.

4. The surface water sampling, filtration and sedimentation integrated device according to claim 3, characterized in that: An air extraction pipe (32) is provided on the side wall of the upper portion of the sedimentation barrel (3) and is capable of being connected to a water outlet pipe section (62).

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