Online sampling device for water treatment

Abstract

The utility model relates to the technical field of water treatment and discloses a water treatment online sampling device which comprises a rack, a sampling pump is fixedly mounted on the inner wall of the bottom of the rack, a sampling pipe is mounted at the water pumping end of the sampling pump, a connecting flange is fixedly connected to the end, away from the sampling pump, of the sampling pipe, and a filter is arranged at the end, close to the connecting flange, of the sampling pipe. The controller is connected with the sampling pump, the water conveying end of the sampling pump is provided with a conveying pipe, the conveying pipe is provided with a flow adjusting assembly, and the flow adjusting assembly comprises a flow adjusting valve and a flow sensor. According to the invention, the accuracy and stability of sampling each time can be ensured, strict control on the water sample amount and flow velocity under different detection requirements is met, the sampling quality is improved, and the real-time water quality condition in the water treatment process is better reflected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to an online sampling device for water treatment. BACKGROUND

[0002] In the process of water treatment, whether it is the purification treatment of industrial water, the treatment of urban domestic sewage, or the production of drinking water, etc., it is necessary to collect and analyze water samples at different stages regularly, so as to monitor the water treatment effect, ensure that the water quality meets the standards, and adjust the process parameters.

[0003] The traditional sampling method is usually to manually collect water samples at the corresponding treatment node at regular intervals by using a container to scoop or manually discharge through a simple pipe valve. This method has many drawbacks. On the one hand, manual sampling cannot guarantee the timeliness and frequency accuracy of sampling, and may miss some key water quality change moments, and cannot truly reflect the real-time dynamic situation of water quality in the treatment process. On the other hand, manual operation may introduce external impurities and other interference factors, affecting the purity of the water sample and the accuracy of the test results. Therefore, an online sampling device for water treatment is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the defects in the prior art, and provides an online sampling device for water treatment, which can realize online real-time, automatic and accurate sampling in the water treatment process, reduce errors caused by manual intervention, and has simple structure, low cost and is not easy to block.

[0005] The online sampling device for water treatment provided by the present application adopts the following technical scheme:

[0006] An online sampling device for water treatment comprises a rack, a sampling pump is fixedly installed on the inner wall of the bottom of the rack, a sampling pipe is installed on the water pumping end of the sampling pump, a connecting flange is fixedly connected to the end of the sampling pipe away from the sampling pump, and a filter is arranged at the end of the sampling pipe close to the connecting flange;

[0007] A conveying pipe is installed on the water conveying end of the sampling pump, a flow regulating assembly is installed on the conveying pipe, the flow regulating assembly comprises a flow regulating valve and a flow sensor, the flow regulating valve is arranged on the conveying pipe to regulate the flow of the water sample, and the flow sensor is installed on the conveying pipe and located downstream of the flow regulating valve;

[0008] A sample collection container is inserted into the middle outer wall of the top of the rack, a sealing cover is threadedly connected to the top outer wall of the sample collection container, a hose is fixedly connected to the end of the conveying pipe away from the sampling pump, the end of the hose away from the conveying pipe is connected in communication with the sealing cover through a connecting assembly, and a liquid level sensor is fixedly installed on the inner wall of the sample collection container.

[0009] The controller is fixedly installed on the inner wall of the bottom of the rack and is electrically connected with the sampling pump, the flow regulating valve, the flow sensor and the liquid level sensor.

[0010] Preferably, the connecting assembly comprises a connecting port and a connecting ring, the connecting ring is movably connected to the outer wall of one end of the hose close to the sealing cover, the connecting port is fixedly connected to the middle outer wall of the top of the sealing cover, the connecting ring is threadedly connected to the outer wall of the connecting port, and the end of the hose away from the conveying pipe passes through the connecting port and extends into the inside of the sample collection container.

[0011] Preferably, the outer wall of the sample collection container is fixedly connected with a limiting ring, the limiting ring is in close contact with the outer wall of the top of the rack, two positioning holes are formed in the outer wall of the limiting ring, two positioning columns are fixedly connected to the outer wall of the top of the rack, the positioning columns are inserted into the positioning holes in a matched mode, and two handles are fixedly connected to the outer wall of the top of the limiting ring.

[0012] Preferably, the inner wall of the filter is provided with a stainless steel filter screen and an activated carbon filter layer, the stainless steel filter screen is close to the connecting flange, and the activated carbon filter layer is located on the side, away from the connecting flange, of the stainless steel filter screen.

[0013] Preferably, the bottom inner wall of the rack is fixedly connected with a handrail.

[0014] Preferably, the bottom of the rack is provided with universal wheels.

[0015] In summary, the present application has the following beneficial technical effects:

[0016] 1. The utility model discloses a sampling pump, flow regulating assembly and controller are set up, realize the automatic extraction of water sample and the accurate regulation of flow, can guarantee the accuracy and stability of each sampling, satisfy the strict control of water sample quantity and flow rate under different detection requirements, improve the sampling quality, better reflect the real-time water quality in the water treatment process.

[0017] 2. The filter at the sampling pipe can effectively filter impurities, reduce the risk of internal blockage of the device, prolong the service life of the device, and also improve the purity of the water sample, which helps the accuracy of the subsequent detection results.

[0018] 3. The setting of the liquid level sensor in the sample collection container and the cooperation with the controller can effectively prevent water sample overflow, ensure the safety and reliability of the sampling operation, and the container is placed on the rack in a plug-in connection mode, which is convenient for sampling and use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall schematic diagram of the application embodiment.

[0020] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the application;

[0021] Figure 3 This is a partial cross-sectional view of the filter in the application embodiment;

[0022] Figure 4 This is a partial cross-sectional view of an embodiment of the application;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Sampling pump; 3. Sample collection container; 31. Limiting ring; 32. Sealing cap; 321. Connection port; 33. Positioning hole; 34. Handle; 35. Liquid level sensor; 4. Positioning column; 5. Handrail; 6. Sampling tube; 61. Connecting flange; 7. Filter; 71. Stainless steel filter screen; 72. Activated carbon filter layer; 8. Delivery pipe; 81. Flow regulating valve; 82. Flow sensor; 9. Hoses; 91. Connecting ring; 10. Casters; 11. Controller. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0026] This application discloses an online water treatment sampling device. (Refer to...) Figures 1-5 An online water treatment sampling device includes a frame 1, a sampling pump 2 is fixedly installed on the bottom inner wall of the frame 1, a sampling pipe 6 is installed at the pumping end of the sampling pump 2, a connecting flange 61 is fixedly connected to the end of the sampling pipe 6 away from the sampling pump 2, and a filter 7 is provided at the end of the sampling pipe 6 near the connecting flange 61.

[0027] The sampling pump 2 is equipped with a delivery pipe 8 at its water delivery end. A flow regulating component is installed on the delivery pipe 8. The flow regulating component includes a flow regulating valve 81 and a flow sensor 82. The flow regulating valve 81 is installed on the delivery pipe 8 to regulate the flow rate of the water sample. The flow sensor 82 is installed on the delivery pipe 8 and is located downstream of the flow regulating valve 81.

[0028] A sample collection container 3 is inserted into the top middle outer wall of the frame 1. A sealing cap 32 is threaded onto the top outer wall of the sample collection container 3. A hose 9 is fixedly connected to the end of the delivery pipe 8 away from the sampling pump 2. The end of the hose 9 away from the delivery pipe 8 is connected to the sealing cap 32 through a connecting assembly. A liquid level sensor 35 is fixedly installed on the inner wall of the sample collection container 3.

[0029] The bottom inner wall of the rack 1 is fixedly provided with a controller 11, which is electrically connected with the sampling pump 2, the flow regulating valve 81, the flow sensor 82 and the liquid level sensor 35 respectively. The controller 11 can receive the flow signal transmitted by the flow sensor 82, and control the rotating speed of the sampling pump 2 and the opening degree of the flow regulating valve 81 according to the preset sampling flow value. When the water sample in the sample collection container 3 reaches the preset liquid level, the liquid level sensor 35 transmits a signal to the controller 11, and the controller 11 controls the sampling pump 2 to stop working and the flow regulating valve 81 to be closed, so as to avoid water sample overflow.

[0030] The connecting assembly comprises a connecting ring 91 and a connecting port 321. The connecting ring 91 is movably connected to the outer wall of one end of the hose 9 close to the sealing cover 32, and the connecting port 321 is fixedly connected to the middle outer wall of the top of the sealing cover 32. The connecting ring 91 is screw-connected to the outer wall of the connecting port 321. The one end of the hose 9 away from the conveying pipe 8 penetrates through the connecting port 321 and extends into the inside of the sample collection container 3. By loosening or tightening the connecting ring 91 on the connecting port 321, the sealing cover 32 and the hose 9 can be quickly disassembled and assembled.

[0031] The outer wall of the sample collection container 3 is fixedly connected with a limiting ring 31, which is in close contact with the top outer wall of the rack 1. The limiting ring 31 limits the sample collection container 3 on the top of the rack 1. The outer wall of the limiting ring 31 is provided with two positioning holes 33. The top outer wall of the rack 1 is fixedly connected with two positioning columns 4, which are inserted into the positioning holes 33 in a matched mode, so as to position the sample collection container 3 on the top of the rack 1 and prevent the sample collection container 3 from shaking or rotating. The top outer wall of the limiting ring 31 is further fixedly connected with two handles 34, which are used to lift the sample collection container 3 from the rack 1.

[0032] The inner wall of the filter 7 is provided with a stainless steel filter screen 71 and an activated carbon filter layer 72. The stainless steel filter screen 71 is close to the connecting flange 61, and the activated carbon filter layer 72 is located on the side of the stainless steel filter screen 71 away from the connecting flange 61. The stainless steel filter screen 71 and the activated carbon filter layer 72 are used to preliminarily filter the water sample entering the sampling pipe 6, remove large-particle impurities and part of dissolved organic matter, and prevent the impurities and the dissolved organic matter from entering the inside of the device and causing blockage or affecting the quality of the water sample.

[0033] The bottom inner wall of the rack 1 is fixedly connected with a handrail 5, which is used to facilitate the movement of the device. The bottom of the rack 1 is provided with universal wheels 10, which are used to quickly move the device.

[0034] The implementation principle of the water treatment online sampling device provided in the embodiments of the present application is as follows: when the water treatment online sampling device is used, first, the sampling pipe 6 is reliably connected with a water treatment pipeline (not shown in the figure) to be sampled through the connecting flange 61, so that the connection is sealed well and water sample leakage is avoided; the power supply (not shown in the figure) of the device is turned on, each electrical component in the device is powered by an external power supply, the controller 11 controls the sampling pump 2 to start according to preset initial parameters, the sampling pump 2 starts to work and generates suction to draw the water sample in the water treatment pipeline into the device through the sampling pipe 6;

[0035] When the water sample passes through the sampling pipe 6, the water sample is first filtered by the filter 7, the left stainless steel filter screen 71 intercepts large-particle silt, debris and other impurities, and the right activated carbon filter layer 72 can adsorb part of dissolved organic matter, and the water sample after preliminary filtration enters the sampling pump 2 and is conveyed to the flow regulating assembly by the sampling pump 2 through the conveying pipe 8;

[0036] The flow sensor 82 in the flow regulating assembly detects the flow of the water sample in real time and transmits the flow data to the controller 11, and the controller 11 compares and analyzes the actual flow data received with the preset sampling flow value. If the actual flow is too large, the controller 11 controls the flow regulating valve 81 to appropriately reduce the opening degree, and at the same time, the speed of the sampling pump 2 is adjusted to be reduced, so that the flow of the water sample gradually decreases to the preset value; if the actual flow is too small, the opposite adjustment operation is performed, and through such a feedback adjustment mechanism, the flow of the water sample is ensured to be stable within the required range.

[0037] The water sample after flow regulation flows into the sample collection container 3 through the hose 9, when the liquid level in the sample collection container 3 gradually rises to the preset liquid level height of the liquid level sensor 35, the liquid level sensor 35 sends a signal to the controller 11, the controller 11 immediately controls the sampling pump 2 to stop working, and at the same time, controls the flow regulating valve 81 to be closed, and the online sampling process of the water sample is completed.

[0038] Subsequently, the sealing cover 32 can be opened regularly, the water sample is taken out for corresponding water quality detection and analysis, and the like, after the detection is completed, the sample collection container 3 is cleaned, and the device can perform the sampling work next time.

[0039] Finally, the following points should be noted: first, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms “installation”, “connection”, “connection” should be understood broadly, which can be mechanical connection or electrical connection, or the communication between the two elements, or direct connection, “up”, “down”, “left”, “right” and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0040] Secondly: the utility model discloses the embodiment in the drawing, only relate to the structure with the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0041] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

[0042] The above are the preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the scope of protection of the present application.

Claims

1. An on-line sampling device for water treatment comprising a frame (1), characterized in that: The bottom inner wall of the rack (1) is fixedly provided with a sampling pump (2), the water suction end of the sampling pump (2) is provided with a sampling pipe (6), the end of the sampling pipe (6) away from the sampling pump (2) is fixedly connected with a connecting flange (61), and the end of the sampling pipe (6) close to the connecting flange (61) is provided with a filter (7). The water delivery end of the sampling pump (2) is provided with a conveying pipe (8), the conveying pipe (8) is provided with a flow adjusting assembly, the flow adjusting assembly comprises a flow adjusting valve (81) and a flow sensor (82), the flow adjusting valve (81) is arranged on the conveying pipe (8) and used for adjusting the flow of the water sample, and the flow sensor (82) is arranged on the conveying pipe (8) and located downstream of the flow adjusting valve (81). The top middle outer wall of the rack (1) is inserted with a sample collection container (3), the top outer wall of the sample collection container (3) is threadedly connected with a sealing cover (32), the end of the conveying pipe (8) away from the sampling pump (2) is fixedly connected with a hose (9), the end of the hose (9) away from the conveying pipe (8) is connected with the sealing cover (32) in communication through a connecting assembly, and the inner wall of the sample collection container (3) is fixedly provided with a liquid level sensor (35).

2. The online water treatment sampling device of claim 1, wherein: The bottom inner wall of the rack (1) is fixedly provided with a controller (11), and the controller (11) is electrically connected with the sampling pump (2), the flow adjusting valve (81), the flow sensor (82) and the liquid level sensor (35) respectively.

3. The water treatment on-line sampling device according to claim 1, characterized in that: The connecting assembly comprises a connecting port (321) and a connecting ring (91), the connecting ring (91) is movably connected to the outer wall of the end of the hose (9) close to the sealing cover (32), the connecting port (321) is fixedly connected to the top middle outer wall of the sealing cover (32), the connecting ring (91) is threadedly connected to the outer wall of the connecting port (321), and the end of the hose (9) away from the conveying pipe (8) penetrates through the connecting port (321) and extends into the inside of the sample collection container (3).

4. The online water treatment sampling device of claim 1, wherein: The outer wall of the sample collection container (3) is fixedly connected with a limiting ring (31), the limiting ring (31) is attached to the top outer wall of the rack (1), two positioning holes (33) are formed in the outer wall of the limiting ring (31), the top outer wall of the rack (1) is fixedly provided with two positioning columns (4), the positioning columns (4) are inserted into the positioning holes (33) in a matched mode, and the top outer wall of the limiting ring (31) is further fixedly provided with two handles (34).

5. The online water treatment sampling device of claim 1, wherein: The inner wall of the filter (7) is provided with a stainless steel filter screen (71) and an activated carbon filter layer (72), the stainless steel filter screen (71) is close to the connecting flange (61), and the activated carbon filter layer (72) is located on the side of the stainless steel filter screen (71) away from the connecting flange (61).

6. The on-line water treatment sampling device of claim 1, wherein: The bottom inner wall of the rack (1) is fixedly connected with a handrail (5).

7. The online water treatment sampling device of claim 1, wherein: The bottom end of the rack (1) is provided with universal wheels (10).

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