Water quality detection sample pretreatment device

Abstract

This utility model discloses a water quality testing sample pretreatment device, relating to the field of water quality testing technology. It includes a base with a pipe support fixedly installed on it. The device works by pouring the sample into an inlet hopper, where it undergoes primary sieving through a first screen. Part of the sample and impurities are diverted through a diversion pipe, while another portion is filtered and discharged from the bottom of the first filter pipe. Simultaneously, the sample and impurities diverted in the diversion pipe undergo secondary filtration through a second screen, removing impurities from the sample. The sample then flows back to the first filter pipe through a return pipe and is discharged. Therefore, filtration through the first screen reduces the amount of sample filtered through the second screen, thus improving the sample pretreatment filtration efficiency to some extent. By starting a motor, the auger blades rotate, transporting impurities from the second screen along the second filter pipe to the outlet, preventing excessive clogging of the second screen surface and its filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and more specifically, to a water quality testing sample pretreatment device. Background Technology

[0002] Water quality testing includes testing of surface water such as rivers, lakes, and reservoirs; testing of groundwater such as drinking water sources and areas surrounding industrial sites; and testing of wastewater such as industrial wastewater and domestic sewage.

[0003] An existing patent (publication (announcement) number: CN222019042U) discloses a sample impurity filtration device for marine water quality testing. When a piston plate is pulled by a pull rod and a fixed rod to extract seawater samples for testing, the seawater first passes through a coarse filter to remove large floating debris, and then passes through a rotating fine filter to remove fine impurities. During the seawater sampling process, a pre-treated, impurity-free seawater sample can be obtained directly, thereby ensuring the accuracy of marine water quality testing data.

[0004] However, when the above-mentioned device is in use, the water is pre-treated and filtered through the filter screen. Impurities will gradually accumulate on the surface of the filter screen, causing the filter screen to become clogged. Secondly, after the impurities accumulate to a certain extent, the filter screen needs to be disassembled and cleaned, and the water cannot be filtered any further, thus affecting the efficiency of water filtration. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a water quality test sample pretreatment device to solve the problems that impurities will gradually accumulate on the surface of the filter screen, causing the filter screen to become clogged, and that the filter screen needs to be disassembled and cleaned after the impurities accumulate to a certain extent, making it impossible to continue filtering the water.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a water quality testing sample pretreatment device, including a base, a pipe support fixedly installed on the base, a first water filter pipe fixedly connected to one side of the pipe support, a water inlet hopper provided at the top of the first water filter pipe, a diversion pipe fixedly connected to the first water filter pipe, a second water filter pipe fixedly connected to the end of the diversion pipe away from the first water filter pipe, a return pipe fixedly connected to the bottom of the second water filter pipe, the end of the return pipe away from the second water filter pipe connected to the first water filter pipe, a first screen provided inside the first water filter pipe, a second screen provided at the connection between the second water filter pipe and the return pipe, a debris removal component provided inside the second water filter pipe, and a discharge outlet provided at the top of the second water filter pipe.

[0007] Preferably, the first filter pipe is arranged vertically, while the diversion pipe, the second filter pipe, and the return pipe are all arranged at an angle.

[0008] Preferably, the first screen is parallel to the diversion pipe, and the first screen is used to screen impurities in the water and guide them into the diversion pipe.

[0009] Preferably, the bottom end of the first water filter pipe is provided with a water outlet head, and the water outlet head is provided with a valve.

[0010] Preferably, the impurity removal component includes a motor, which is installed on the top of the second water filter pipe. A round shaft is rotatably installed between the second water filter pipe and the second screen. The output end of the motor is fixedly connected to one end of the round shaft. A screw conveyor blade is fixed on the round shaft, and a plurality of water filter holes are evenly distributed on the surface of the screw conveyor blade.

[0011] Preferably, the filter holes, the first screen, and the second screen have the same aperture size.

[0012] Preferably, a waste discharge pipe is fixedly connected to the other side of the pipe support, and the top end of the waste discharge pipe is connected to the discharge outlet.

[0013] Preferably, the pipe support is equipped with a water collection container located directly below the outlet end of the first water filter pipe and a debris collection container located directly below the outlet end of the debris discharge pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention involves pouring a sample into a water inlet hopper, where it undergoes primary sieving through a first screen. A portion of the sample and impurities are diverted through a splitter tube, while the remaining food sample is filtered and discharged from the bottom of the first filter tube. Simultaneously, the sample and impurities diverted through the splitter tube enter a second filter tube, where they undergo secondary filtration through a second screen, removing impurities from the sample. The sample is then returned to the first filter tube via a return tube and discharged. Therefore, filtration through the first screen reduces the amount of sample that needs to pass through the second screen, thus improving sample pretreatment filtration efficiency to some extent.

[0015] This invention, through the design of the water outlet and valve, can control the time and volume of sample outflow, and at the same time, can prevent water samples from splashing large water droplets.

[0016] This invention uses a motor to rotate the auger blades, which transports impurities on the second screen along the second filter pipe to the outlet for discharge, thus preventing the second screen from becoming clogged with too many impurities and affecting its filtration efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional view of the main structure of this utility model; Figure 3 This is a schematic diagram of the relevant structure inside the first water filter pipe of this utility model; Figure 4 This is a schematic diagram of the relevant structure inside the second water filter pipe of this utility model.

[0018] Figure label: 1. Base; 2. Pipe support; 3. First filter pipe; 4. Inlet hopper; 5. Diverter pipe; 6. Second filter pipe; 7. Return pipe; 8. Outlet pipe head; 9. Valve; 10. First screen; 11. Second screen; 12. Impurity removal assembly; 121. Motor; 122. Round shaft; 123. Screwdriver blades; 124. Filter hole; 13. Outlet; 14. Impurity removal pipe; 15. Water collection container; 16. Impurity collection container. Detailed Implementation

[0019] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0020] As attached Figure 1 To be continued Figure 4 This utility model provides a water quality testing sample pretreatment device, including a base 1, a pipe support 2 fixedly installed on the base 1, a first filter pipe 3 fixedly connected to one side of the pipe support 2, a water inlet 4 provided at the top of the first filter pipe 3, the water inlet 4 serving as the inlet for water quality testing samples, a diversion pipe 5 fixedly connected to the first filter pipe 3, the diversion pipe 5 being used to divert part of the sample and impurities in the water, a second filter pipe 6 fixedly connected to the end of the diversion pipe 5 away from the first filter pipe 3, a return pipe 7 fixedly connected to the bottom of the second filter pipe 6, and the end of the return pipe 7 away from the second filter pipe 6 being connected to the first filter pipe 3. The filter pipes 3 are connected. The lower half of the second filter pipe 6 and the return pipe 7 are used to return the sample to the first filter pipe 3. The first filter pipe 3 is equipped with a first screen 10, which can perform primary filtration of the sample. The connection between the second filter pipe 6 and the return pipe 7 is equipped with a second screen 11, which can perform secondary filtration of some of the sample and impurities after primary filtration. The second filter pipe 6 is equipped with a debris removal component 12, and the top of the second filter pipe 6 is equipped with a discharge outlet 13. The debris removal component 12 can lift the impurities filtered by the second screen 11 to the discharge outlet 13 and discharge them.

[0021] Specifically, during the pretreatment of water samples, the sample is first poured into the inlet hopper 4 and screened through the first screen 10. Some of the sample and impurities are diverted through the diversion pipe 5, while the other part of the food is filtered and discharged from the bottom of the first filter pipe 3. At the same time, the sample and impurities diverted in the diversion pipe 5 enter the second filter pipe 6 and undergo secondary filtration through the second screen 11 to filter out the impurities from the sample. The sample is then returned to the first filter pipe 3 through the return pipe 7 and discharged. Thus, filtration through the first screen 10 can reduce the amount of sample filtered through the second screen 11, thereby improving the sample pretreatment filtration efficiency to a certain extent.

[0022] Preferably, the first filter pipe 3 is set vertically, while the diversion pipe 5, the second filter pipe 6, and the return pipe 7 are all set at an angle to facilitate the return of the diverted sample to the first filter pipe 3.

[0023] Preferably, the first screen 10 is parallel to the diversion pipe 5, and the first screen 10 is used to screen and guide impurities in the water into the diversion pipe 5.

[0024] Preferably, the bottom end of the first filter pipe 3 is provided with a water outlet head 8, and a valve 9 is provided on the water outlet head 8. The valve 9 is existing technology and is used to control the opening and closing of the water outlet head 8. It will not be described in detail here. By setting the water outlet head 8 and the valve 9, the sample outflow time and volume can be controlled. At the same time, it can also prevent the water sample from splashing a large amount of water.

[0025] Preferably, the impurity removal component 12 includes a motor 121, which is mounted on the top of the second filter pipe 6. A round shaft 122 is rotatably mounted between the second filter pipe 6 and the second screen 11. The output end of the motor 121 is fixedly connected to one end of the round shaft 122. An auger blade 123 is fixed on the round shaft 122. A plurality of filter holes 124 are evenly distributed on the surface of the auger blade 123.

[0026] Specifically, after the second screen 11 filters the water sample, the motor 121 can be started through the existing control method, so that the round shaft 122 drives the auger blades 123 to rotate, thereby transporting the impurities on the second screen 11 along the second filter pipe 6 to the outlet 13 for discharge, thus avoiding the clogging of the surface of the second screen 11 with too many impurities and affecting the filtration efficiency of the second screen 11.

[0027] Preferably, the filter holes 124, the first screen 10, and the second screen 11 have the same aperture size.

[0028] Preferably, a waste discharge pipe 14 is fixedly connected to the other side of the pipe support 2. The top end of the waste discharge pipe 14 is connected to the outlet 13, and impurities can be discharged along the waste discharge pipe 14.

[0029] Preferably, the pipe support 2 is equipped with a water collection container 15 located directly below the outlet end of the first water filter pipe 3 and a debris collection container 16 located directly below the outlet end of the debris discharge pipe 14. The water collection container 15 and the debris collection container 16 are used to collect filtered water samples and impurities, respectively.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water quality testing sample pretreatment device, characterized in that, Includes a base (1), on which a pipe support (2) is fixedly installed. A first water filter pipe (3) is fixedly connected to one side of the pipe support (2). A water inlet hopper (4) is provided at the top of the first water filter pipe (3). A diversion pipe (5) is fixedly connected to the first water filter pipe (3). A second water filter pipe (6) is fixedly connected to the end of the diversion pipe (5) away from the first water filter pipe (3). A return pipe (7) is fixedly connected to the bottom of the second water filter pipe (6). The end of the return pipe (7) away from the second water filter pipe (6) is connected to the first water filter pipe (3). A first screen (10) is provided inside the first water filter pipe (3). A second screen (11) is provided at the connection between the second water filter pipe (6) and the return pipe (7). A waste removal component (12) is provided inside the second water filter pipe (6). An outlet (13) is provided at the top of the second water filter pipe (6).

2. The water quality testing sample pretreatment device according to claim 1, characterized in that, The first filter pipe (3) is set vertically, while the diversion pipe (5), the second filter pipe (6) and the return pipe (7) are all set at an angle.

3. The water quality testing sample pretreatment device according to claim 2, characterized in that, The first screen (10) is parallel to the diversion pipe (5), and the first screen (10) is used to screen and guide impurities in the water into the diversion pipe (5).

4. The water quality testing sample pretreatment device according to claim 1, characterized in that, The bottom end of the first filter pipe (3) is provided with a water outlet head (8), and a valve (9) is provided on the water outlet head (8).

5. The water quality testing sample pretreatment device according to claim 2, characterized in that, The impurity removal assembly (12) includes a motor (121), which is installed on the top of the second filter pipe (6). A round shaft (122) is rotatably installed between the second filter pipe (6) and the second screen (11). The output end of the motor (121) is fixedly connected to one end of the round shaft (122). A screw conveyor blade (123) is fixed on the round shaft (122). A plurality of filter holes (124) are evenly distributed on the surface of the screw conveyor blade (123).

6. The water quality testing sample pretreatment device according to claim 5, characterized in that, The filter holes (124), the first screen (10), and the second screen (11) have the same aperture size.

7. The water quality testing sample pretreatment device according to claim 1, characterized in that, The other side of the pipe support (2) is fixedly connected to a waste discharge pipe (14), and the top end of the waste discharge pipe (14) is connected to the discharge outlet (13).

8. The water quality testing sample pretreatment device according to claim 7, characterized in that, The pipe support (2) is equipped with a water collection container (15) located directly below the outlet end of the first filter pipe (3) and a debris collection container (16) located directly below the outlet end of the debris discharge pipe (14).

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