COD detection device applied to multi-channel detection

Abstract

The utility model relates to water quality detection technical field provides a COD detection device for multichannel detection, include: detection box and water sample pipe, the one side fixed connection of detection box has a plurality of straight pipes, the inner wall of a plurality of straight pipes all is provided with internal thread, a plurality of straight pipe's another end fixed connection has the connecting pipe, a plurality of connecting pipe's another end fixed connection has solenoid valve no.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to a COD detection device applied to multi-channel detection. Background Technology

[0002] Chemical oxygen demand (COD) is a key indicator for measuring the organic matter content in water bodies and plays a crucial role in water quality monitoring. Accurate and efficient COD detection is of great significance for assessing the degree of water pollution, ensuring water resource security, and guiding wastewater treatment. However, current COD detection technologies still have some limitations, such as low detection efficiency, insufficient accuracy, and cross-interference when using multi-channel detection.

[0003] The existing patent, CN214585373U, discloses a multi-channel water quality testing device, including a housing, multiple risers housed within the housing, multiple water quality testing probes, and multiple connectors. The risers can be connected to extend their length via a docking method. Each connector includes a connecting part and a mounting part, with the connecting part fixedly mounted at any height on the riser. Each water quality testing probe includes a probe, a data cable connected to the probe, and a data plug connected to the data cable; the probe can be fixedly mounted on the mounting part of any connector. The housing houses a water quality analyzer with multiple data jacks, and the data plug can be inserted into these jacks to transmit the probe's detection data to the water quality analyzer. This invention, while ensuring portability, allows for simultaneous water quality testing at multiple locations, making it particularly suitable for situations requiring simultaneous testing of water at different depths.

[0004] In the above solution, although a plug can be inserted into a data jack to transmit the probe's detection data to the water quality analyzer, ensuring portability while allowing for the testing of multiple water samples, the simultaneous testing of multiple samples with residues inside the probe can lead to inaccurate data. Furthermore, various bacteria remaining at the probe from multiple samples can affect the results of subsequent tests. This device only guarantees the accuracy of the first few data points, and errors will still occur in the results of subsequent tests. The water sample can only be tested using the probe, and it cannot add mixtures to the existing environment to see if other reactions occur, thus reducing its practicality. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a COD detection device for multi-channel detection, comprising: a detection box and a water sample tube, wherein a plurality of straight tubes are fixedly connected to one side of the detection box, the inner walls of the plurality of straight tubes are provided with internal threads, the other ends of the plurality of straight tubes are fixedly connected to a connecting pipe, the other ends of the plurality of connecting pipes are fixedly connected to a solenoid valve, the outer surface of the water sample tube is provided with external threads, a piston is movably connected to one end of the water sample tube, a round tube is fixedly connected to the other end of the water sample tube, and a driving assembly is provided inside the detection box.

[0006] The technical effect of the above-mentioned further solution is as follows: the water sample to be tested is added to the inside of the water sample tube, and it is fixed by turning the external thread into the internal thread. The piston is squeezed to make the water sample inside the water sample tube enter the inside of the connecting tube through the round tube. Because the control center does not apply current to the solenoid valve, the valve of the connecting tube to the U-tube is closed, and the water sample will not enter the inside of the U-tube.

[0007] In a preferred embodiment, the drive assembly includes a control center, on one side of which multiple drive terminals are fixedly mounted, and an input terminal of each of the multiple solenoid valves is electrically connected to the output terminal of the multiple drive terminals via wires.

[0008] The technical effect of adopting the above-mentioned further solution is that the buttons on the control center can control the driving of each drive terminal and signal receiver, and multiple drive terminals can drive multiple solenoid valves to switch the valves on and off.

[0009] In one preferred embodiment, the output end of one of the drive terminals is electrically connected to a second solenoid valve via a wire, the drive end of the second solenoid valve is fixedly mounted with a first water pump, and the input end of the first water pump is fixedly connected to a U-shaped tube.

[0010] The technical effect of adopting the above-mentioned further solution is that one of the drive terminals can drive the second solenoid valve to cause the first water pump to extract water samples for testing, or it can extract water flow for cleaning.

[0011] In a preferred embodiment, a detection tube is fixedly connected to the output end of the water pump, and a detection box is fixedly connected to the other end of the detection tube. A signal transmission tube is fixedly installed on one side of the detection box.

[0012] The technical effect of adopting the above-mentioned further solution is that the water pump draws the water sample through the detection tube into the inside of the detection box for detection, and the signal transmission tube transmits the detection results to the screen in the control center for staff to view.

[0013] In a preferred embodiment, a signal receiver is fixedly installed on one side of the control center, one end of the signal transmission tube is electrically connected to the receiving end of the signal receiver via a cable, a feed pipe is fixedly installed on one side of the detection box, a second water pump is provided on one side of the detection box, a drive port is fixedly installed on one side of the control center, the input end of the second water pump is electrically connected to the output end of the drive port via a wire, and a discharge pipe is fixedly connected to the output end of the second water pump.

[0014] The technical effect of adopting the above-mentioned further solution is that: foreign matter is added into the interior of the detection chamber through the feed pipe for mixing, and the output end of the drive port drives the water pump to extract the mixture inside the detection chamber and discharge it through the discharge pipe.

[0015] In a preferred embodiment, a water inlet pipe is fixedly installed on one side of the detection box, and the other side of the water inlet pipe is fixedly connected to the port of one of the connecting pipes. A placement bag is fixedly connected to the outer surface of one side of the detection box.

[0016] The technical effect of adopting the above-mentioned further solution is that the water inlet pipe is connected to the external clean water flow, the water flows from the U-shaped pipe to the detection tube and finally enters the interior of the detection box, is mixed and discharged from the interior of the detection box through the discharge pipe to complete the self-cleaning, and the placement bag can be used to place the water sample tube to prevent damage.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, during use, operators can select different water samples from inside the solenoid valves for testing. Activating the button on the outer surface of the control center causes current to be applied to the drive terminal of the solenoid valve, opening the valve connected to the U-shaped tube. The water pump then draws the water sample through the U-shaped tube into the detection tube, which then enters the detection chamber for testing. The test results are transmitted to the screen in the control center via a signal transmission tube. If it is necessary to add foreign materials for mixing, these are added through the feed pipe into the detection chamber. Since the addition of foreign materials during testing leaves residues of the previously tested items in the internal pipes and the detection chamber, the inlet pipe is connected to a clean external water flow. The water flows from the U-shaped tube to the detection tube and finally into the detection chamber for mixing. After mixing, the water is discharged from the detection chamber through the discharge pipe, completing the self-cleaning process.

[0018] In this invention, the water sample to be tested is added to the inside of the water sample tube during use, and then... The external thread is turned into the internal thread for fixation. The piston is squeezed to make the water sample inside the water sample tube enter the solenoid valve one through the round tube and connecting tube. Because the control center does not apply current to the solenoid valve one, the valve at the output end of the solenoid valve one is closed, and the water sample will not enter the U-shaped tube. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a COD detection device for multi-channel detection proposed in this utility model; Figure 2 This is a cross-sectional view of the internal structure of a COD detection device for multi-channel detection proposed in this utility model; Figure 3 This is a front view structural diagram of a COD detection device applied to multi-channel detection proposed in this utility model; Figure 4 This is a schematic diagram of the water sample tube structure of a COD detection device for multi-channel detection proposed in this utility model; Figure 5 This is a schematic diagram of the electrical flow plane of a COD detection device for multi-channel detection proposed in this utility model. Legend: 101. Detection box; 102. Control center; 103. Straight pipe; 104. Internal thread; 105. Connecting pipe; 106. Solenoid valve one; 107. Water sample tube; 108. Piston; 109. External thread; 110. Round pipe; 111. Signal receiver; 112. Water pump one; 113. Solenoid valve two; 114. U-tube; 115. Detection box; 116. Signal transmission tube; 117. Water pump two; 118. Discharge pipe; 119. Water inlet pipe; 120. Feed pipe; 121. Detection tube; 122. Drive terminal; 123. Drive port; 124. Placement bag. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figures 1 to 5This utility model provides a COD detection device for multi-channel detection, comprising: a detection box 101 and a water sample tube 107. Multiple straight tubes 103 are fixedly connected to one side of the detection box 101. The inner walls of each straight tube 103 are provided with internal threads 104. Connecting pipes 105 are fixedly connected to the other ends of the multiple straight tubes 103. A solenoid valve 106 is fixedly connected to the other end of the multiple connecting pipes 105. External threads 109 are provided on the outer surface of the water sample tube 107. A piston 108 is movably connected to one end of the water sample tube 107, and a round tube 110 is fixedly connected to the other end of the water sample tube 107. The detection box 101... The internal components include a detection box 101 and a water sample tube 107. The detection box 101 is characterized by having multiple straight tubes 103 fixedly connected to one side, each straight tube 103 having an internal thread 104 on its inner wall, a connecting tube 105 fixedly connected to the other end of each straight tube 103, and a solenoid valve 106 fixedly connected to the other end of each connecting tube 105. The water sample tube 107 has an external thread 109 on its outer surface, a piston 108 movably connected to one end of the water sample tube 107, and a round tube 110 fixedly connected to the other end of the water sample tube 107. The detection box 101 contains the internal components of the driving assembly.

[0023] like Figures 1 to 5 As shown, the drive assembly includes a control center 102. Multiple drive terminals 122 are fixedly installed on one side of the control center 102. The input terminals of multiple solenoid valves 106 are electrically connected to the output terminals of the multiple drive terminals 122 via wires. Buttons on the control center 102 can control the drive of each drive terminal 122 and the signal receiver 111. The multiple drive terminals 122 can drive the multiple solenoid valves 106 to open and close the valves.

[0024] like Figures 1 to 5 As shown, the output end of one of the drive terminals 122 is electrically connected to a solenoid valve 113 via a wire. A water pump 112 is fixedly installed at the drive end of the solenoid valve 113. A U-shaped tube 114 is fixedly connected to the input end of the water pump 112. One of the drive terminals 122 can drive the solenoid valve 113 to cause the water pump 112 to extract water samples for testing, or it can extract water flow for cleaning.

[0025] like Figures 1 to 5 As shown, the output end of the water pump 112 is fixedly connected to the detection tube 121, and the other end of the detection tube 121 is fixedly connected to the detection box 115. A signal transmission tube 116 is fixedly installed on one side of the detection box 115. The water pump 112 draws water samples through the detection tube 121 into the detection box 115 for testing, and the signal transmission tube 116 transmits the test results to the screen of the control center 102 for staff to view.

[0026] like Figures 1 to 5As shown, a signal receiver 111 is fixedly installed on one side of the control center 102. One end of the signal transmission tube 116 is electrically connected to the receiving end of the signal receiver 111 via a cable. A feed pipe 120 is fixedly installed on one side of the detection box 115. A second water pump 117 is installed on one side of the detection box 115. The output end of the second water pump 117 is fixedly connected to a discharge pipe 118. A drive port 123 is fixedly installed on one side of the control center 102. The input end of the second water pump 117 is electrically connected to the output end of the drive port 123 via a wire. Foreign matter is added through the feed pipe 120 and enters the interior of the detection box 115 for mixing. The output end of the drive port 123 drives the second water pump 117 to extract the mixture inside the detection box 115 and discharge it through the discharge pipe 118.

[0027] like Figures 1 to 5 As shown, a water inlet pipe 119 is fixedly installed on one side of the test box 101, and the other side of the water inlet pipe 119 is fixedly connected to the port of one of the connecting pipes 105. A placement bag 124 is fixedly connected to the outer surface of one side of the test box 101. The water inlet pipe 119 is connected to the external clean water flow. The water flows from the U-shaped pipe 114 to the test tube 121 and finally enters the interior of the test chamber 115. After mixing, it is discharged from the interior of the test box 101 through the discharge pipe 118 to complete the self-cleaning. The placement bag 124 can be used to place the water sample tube 107 to prevent damage.

[0028] The working principle of this utility model is as follows: The water sample to be tested is added to the inside of the water sample tube 107. It is then threaded into the internal thread 104 via the external thread 109 for fixation. The piston 108 is squeezed, causing the water sample inside the water sample tube 107 to enter the connecting tube 105 through the round tube 110. Because the control center 102 does not apply current to the solenoid valve 106, the valve connecting the connecting tube 105 to the U-tube 114 is closed, preventing water sample from entering the U-tube 114. At this time, the operator can select different water samples from the solenoid valve 106 for testing. Activating the button on the outer surface of the control center 102 causes the drive terminal 122 to apply current to the solenoid valve 106, thus connecting the U-tube 114. When the valve is opened, water pump 112 draws water sample through U-tube 114 into the detection tube 121, and then into the detection box 115 for testing. The test results are transmitted to the screen of the control center 102 via signal transmission tube 116 for viewing. If it is necessary to add foreign matter for mixing, the foreign matter is added through feed tube 120 into the detection box 115 for mixing. At this time, due to the addition of foreign matter into the detection box 115, the internal pipes and the inside of the detection box 115 will have residues of the previously tested items. The water inlet pipe 119 is connected to the external clean water flow. The water flows from U-tube 114 to the detection tube 121 and finally into the detection box 115. After mixing, it is discharged from the inside of the detection box 101 through discharge pipe 118 to complete the self-cleaning process.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A COD detection device applied to multi-channel detection, comprising: The detection box (101) and the water sample tube (107) are characterized in that: a plurality of straight tubes (103) are fixedly connected to one side of the detection box (101), the inner walls of the plurality of straight tubes (103) are provided with internal threads (104), the other end of the plurality of straight tubes (103) is fixedly connected to a connecting tube (105), the other end of the plurality of connecting tubes (105) is fixedly connected to a solenoid valve (106), the outer surface of the water sample tube (107) is provided with external threads (109), one end of the water sample tube (107) is movably connected to a piston (108), the other end of the water sample tube (107) is fixedly connected to a round tube (110), and the inside of the detection box (101) is provided with a driving assembly.

2. The COD detection device applied to multi-channel detection according to claim 1, characterized in that: The drive assembly includes a control center (102), and a plurality of drive terminals (122) are fixedly installed on one side of the control center (102). The input terminals of the plurality of solenoid valves (106) are electrically connected to the output terminals of the plurality of drive terminals (122) via wires.

3. The COD detection device for multi-channel detection according to claim 2, characterized in that: One of the drive terminals (122) is electrically connected to a second solenoid valve (113) via a wire. A first water pump (112) is fixedly installed at the drive end of the second solenoid valve (113), and a U-shaped tube (114) is fixedly connected at the input end of the first water pump (112).

4. The COD detection device for multi-channel detection according to claim 3, characterized in that: The output end of the water pump (112) is fixedly connected to a detection tube (121), and the other end of the detection tube (121) is fixedly connected to a detection box (115). A signal transmission tube (116) is fixedly installed on one side of the detection box (115).

5. The COD detection device for multi-channel detection according to claim 4, characterized in that: A signal receiver (111) is fixedly installed on one side of the control center (102). One end of the signal transmission tube (116) is electrically connected to the receiving end of the signal receiver (111) via a cable. A feed pipe (120) is fixedly installed on one side of the detection box (115). A second water pump (117) is provided on one side of the detection box (115). A drive port (123) is fixedly installed on one side of the control center (102). The input end of the second water pump (117) is electrically connected to the output end of the drive port (123) via a wire. A discharge pipe (118) is fixedly connected to the output end of the second water pump (117).

6. The COD detection device for multi-channel detection according to claim 1, characterized in that: A water inlet pipe (119) is fixedly installed on one side of the detection box (101), and the other side of the water inlet pipe (119) is fixedly connected to the port of one of the connecting pipes (105).

7. The COD detection device for multi-channel detection according to claim 1, characterized in that: A placement bag (124) is fixedly connected to one side of the outer surface of the detection box (101).

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