Multi-channel dilution wastewater treatment device

Abstract

The utility model discloses a multipath dilution wastewater treatment device, which belongs to the technical field of fine chemical engineering, and comprises a sample water mechanism, a dilution water mechanism, a flushing mechanism, a pollution discharge mechanism, a mixed water mechanism and a detection mechanism, the device can dilute multiple paths of solutions as required, the dilution ratio of each path is adjustable, and full-automatic dilution can be performed according to dilution requirements. Queuing logic can be customized according to requirements of a user, full-automatic, continuous, multi-path adjustable and accurate dilution is realized, rear-end sample measuring equipment is automatically started after dilution is finished, full-process full-automatic control is realized, and measurement is more accurate; a high-precision and high-sensitivity capacitance switch and a high-precision radar liquid level meter are adopted for volume control and proportioning dilution, the volume magnitude of sample water is hundred milliliters, and errors are smaller; and the requirements of different pressure and different medium working conditions are met, and the application range is wide.

Description

Technical Field

[0001] This application belongs to the field of fine chemical technology, and particularly relates to a multi-channel dilution wastewater treatment device. Background Art

[0002] In the process of chemical production, wastewater is generated during the production of products such as citral series products, linalool series products, ionone series products, etc. In fine chemical production enterprises, there are many types of products and wastewater, and the types of wastewater are diverse and different. If each wastewater sample is separately sampled and detected, it will greatly increase the workload, increase labor costs, and there are large errors in manual detection; if an on-line monitoring device is installed, different dilution multiples need to be adjusted according to different wastewater qualities. One set of on-line monitoring equipment can detect at most 4 wastewater streams. When there are many types of water samples, multiple sets of on-line monitoring equipment are required for detection, resulting in high costs.

[0003] In wastewater treatment, wastewater monitoring and control, and environmental analysis, various liquid samples need to be detected and analyzed. However, due to the limited detection range of the detection instrument, dilution is required; existing dilutions are mostly carried out by manual dilution methods, but there are differences in dilution between people, resulting in low detection accuracy. In addition, if there are a large number of samples, a large amount of manpower is required, increasing the operating costs of the enterprise.

[0004] Existing automatic dilution devices generally use a metering tube and a peristaltic pump in cooperation for metering. They not only have a complex structure and low metering accuracy, but also cannot flexibly adjust the dilution multiple; some automatic dilution devices use two syringe pumps to separately meter the sample and the dilution solution, resulting in high costs and inaccurate measurements when a large dilution multiple is required as multiple metering operations are needed.

[0005] Patent CN117606897A discloses a dilution device provided with a mixing pool and a waste liquid pool. The injection tube can be driven to move by a switching component, and the liquid output position of the injection tube can be flexibly adjusted. Thus, before injecting the sample into the mixing pool, the air bubbles in the injection tube can be discharged, effectively improving the metering accuracy; however, this device cannot be used to simultaneously dilute samples with different dilution multiples for multiple streams, and can only perform dilution on water samples that require the same dilution multiple, cannot be adjusted arbitrarily, and at the same time, monitoring deviations will occur due to the use of the same sampling pipeline. Summary of the Invention

[0006] This application provides a multi-channel dilution wastewater treatment device, which solves the problems that the dilution device can only dilute one solution, the dilution multiple cannot be flexibly modified, the measurement is inaccurate, the monitoring deviation is large, and the cost of the dilution device is high.

[0007] The embodiment of the present application provides a multi-channel diluted wastewater treatment device, including a sample water mechanism, a dilution water mechanism, a flushing mechanism, a sewage discharge mechanism, a mixed water mechanism and a detection mechanism; the mixed water mechanism is communicated with the detection mechanism, the flushing mechanism is communicated with the sample water mechanism and the mixed water mechanism, the sample water mechanism, the dilution water mechanism and the flushing mechanism are arranged above the mixed water mechanism, and the sample water mechanism, the dilution water mechanism and the mixed water mechanism are communicated through the sewage discharge mechanism.

[0008] In one embodiment,

[0009] The sample water mechanism includes a sample water buffer component and a sample water inlet component.

[0010] In one embodiment,

[0011] The sample water buffer component includes a sample water buffer tank. One upper side of the sample water buffer tank is communicated with a first sample water inlet pipe, and a sample water inlet automatic control valve is arranged on the first sample water inlet pipe. A sample water inlet manual valve is arranged on one side of the sample water inlet automatic control valve; one upper side of the sample water buffer tank is also communicated with a sample water buffer tank overflow pipe. The other lower side of the sample water buffer tank is communicated with a sample water sampling pipe, and a sample water sampling valve is arranged on the sample water sampling pipe; the bottom of the sample water buffer tank is communicated with a second sample water inlet pipe, and a sample water inlet valve is arranged on the second sample water inlet pipe. A sample water sewage pipe is communicated with the second sample water inlet pipe, and a sample water buffer tank sewage valve is arranged on the sample water sewage pipe; the number of the first sample water inlet pipes is at least 1.

[0012] In one embodiment,

[0013] The sample water inlet component includes a sample water tank. The second sample water inlet pipe communicates the sample water buffer tank and the sample water tank; one upper side of the sample water tank is communicated with a sample water tank overflow pipe. The bottom of the sample water tank is communicated with a sample water inlet mixed water tank pipe, and a mixed water tank inlet sample water valve is arranged on the sample water inlet mixed water tank pipe. A sample water volume adjustment test tube is communicated with the sample water inlet mixed water tank pipe, and a sample water volume adjustment test valve is arranged on the sample water volume adjustment test tube; a high-precision radar liquid level gauge is arranged inside the sample water tank.

[0014] In one embodiment,

[0015] The dilution water mechanism includes a dilution water buffer component and a dilution water inlet component.

[0016] In one embodiment,

[0017] The dilution water buffer assembly includes a dilution water buffer tank, a first dilution water inlet pipe is connected to the dilution water buffer tank, a manual dilution water inlet valve is provided on the dilution water inlet pipe, and an electric valve is provided on one side of the manual dilution water inlet valve; an overflow pipe is connected to the upper part of one side of the dilution water buffer tank, a second dilution water inlet pipe is connected to the bottom of the dilution water buffer tank, a dilution water valve is provided on the second dilution water inlet pipe, a dilution water sewage discharge pipe is connected to the second dilution water inlet pipe, and a dilution water sewage discharge valve is provided on the dilution water sewage discharge pipe.

[0018] In one embodiment,

[0019] The dilution water inlet assembly includes a dilution water tank, and the second dilution water inlet pipe connects the dilution water buffer tank and the dilution water tank; a dilution water inlet pipe to the mixing water tank is connected to the bottom of the dilution water tank, a mixing water tank inlet dilution water valve is provided on the dilution water inlet pipe to the mixing water tank, a dilution water volume adjustment test tube is connected to the dilution water inlet pipe to the mixing water tank, and a dilution water volume adjustment valve is provided on the dilution water volume adjustment test tube; a high-precision radar level gauge is provided inside the dilution water tank.

[0020] In one embodiment,

[0021] The mixed water mechanism includes a mixing water tank, an air diffuser pipe is provided at the inner bottom of the mixing water tank, the air diffuser pipe extends from one side of the mixing water tank to the outside of the mixing water tank, a manual air diffuser valve is provided on the air diffuser pipe, and an automatic air diffuser valve is provided on one side of the manual air diffuser valve; an inlet pipe to the equipment is provided on one side of the mixing water tank, a peristaltic pump is provided on the inlet pipe to the equipment, and the inlet pipe to the equipment connects the mixing water tank and the detection mechanism; a mixing water tank sewage discharge pipe is connected to the bottom of the mixing water tank, and a mixing water tank sewage discharge valve is provided on the mixing water tank sewage discharge pipe.

[0022] In one embodiment,

[0023] The flushing mechanism includes a flushing water pipe, and multiple flushing water pipes are provided for the flushing water pipe. One end of one of the flushing water pipes is provided with a water inlet end, one of the flushing water pipes is connected to the sample water buffer tank, one of the flushing water pipes is connected to the sample water tank, and one of the flushing water pipes is connected to the mixing water tank.

[0024] In one embodiment,

[0025] The overflow pipe of the sample water buffer tank, the sample water sewage discharge pipe, the overflow pipe of the sample water tank are connected to the third sewage discharge pipe, the mixing water tank sewage discharge pipe is connected to the first sewage discharge pipe, the overflow pipe and the dilution water sewage discharge pipe are connected to the second sewage discharge pipe; the first sewage discharge pipe, the second sewage discharge pipe, and the third sewage discharge pipe are connected and arranged.

[0026] The present invention provides a multi-channel diluted wastewater treatment device, which is mainly used for diluting the sample water. The number of sample waters to be detected can be set according to requirements with multiple sample water inlet pipes, and the inlet pipes are automatically controlled by electric valves; the dilution ratio can be set through the DCS control program according to the dilution requirements, and the specific dilution ratio is determined by preliminary exploration and manual verification of the multiple of dilution required for the sample water. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 is the structural diagram of the wastewater treatment device;

[0029] Figure 2 is the structural diagram of the detection mechanism.

[0030] Description of the symbols and markings in the drawings:

[0031] A, sample water mechanism; B, dilution water mechanism; C, mixed water mechanism; 1, sample water buffer tank; 11, first sample water inlet pipe; 12, sample water inlet automatic control valve; 13, sample water inlet manual valve; 14, sample water buffer tank overflow pipe; 15, sample water drain pipe; 16, sample water sampling pipe; 17, sample water sampling valve; 18, sample water buffer tank drain valve; 19, second sample water inlet pipe; 2, sample water tank; 21, sample water inlet valve; 22, sample water volume adjustment test tube; 23, flushing water inlet valve; 24, sample water tank overflow pipe; 25, sample water volume adjustment valve; 26, sample water inlet pipe to the mixed water tank; 3, mixed water tank; 31, aeration pipe; 32, aeration pipe manual valve; 33, aeration pipe automatic control valve; 341, sample water inlet valve to the mixed water tank; 342, dilution water inlet valve to the mixed water tank; 35, mixed water tank drain valve; 36, peristaltic pump; 37, inlet pipe to the equipment; 38, mixed water tank drain pipe; 4, dilution water buffer tank; 41, first dilution water inlet pipe; 42, dilution water inlet manual valve; 43, electric valve; 44, dilution water drain valve; 45, dilution water drain pipe; 46, overflow pipe; 47, second dilution water inlet pipe; 5, dilution water tank; 51, dilution water valve; 52, dilution water volume adjustment valve; 53, dilution water volume adjustment test tube; 54, dilution water inlet pipe to the mixed water tank; 6, flushing water pipe, 61, flushing water pipe manual valve, 62, first flushing water pipe electric valve; 63, second flushing water pipe electric valve; 64, third flushing water pipe electric valve; 65, water inlet end; 71, first drain pipe; 72, second drain pipe; 73, third drain pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, this application will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0033] Please refer to Figure 1 , which is a multi-channel dilution wastewater treatment device provided by an embodiment of this application. For the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows:

[0034] In one embodiment, a multi-channel dilution wastewater treatment device includes a sample water mechanism A, a dilution water mechanism B, a flushing mechanism, a mixed water mechanism C and a detection mechanism; the mixed water mechanism C is communicated with the detection mechanism, the flushing mechanism is communicated with the sample water mechanism A and the mixed water mechanism C, the sample water mechanism A, the dilution water mechanism B and the flushing mechanism are arranged above the mixed water mechanism C, and the sample water mechanism A, the dilution water mechanism B and the mixed water mechanism C are communicated through a sewage discharge mechanism.

[0035] Specifically, the sample water mechanism A is used to introduce sample water, the dilution water mechanism B is used to introduce dilution water, the mixed water mechanism C is used to load sample water and dilution water to provide a mixing place, the flushing mechanism is used to flush the sample water mechanism A and the mixed water mechanism C, and can also reduce the sampling deviation caused by situations such as scaling of the water tank pipeline to ensure sampling accuracy, and the sewage discharge mechanism is used to discharge wastewater and the like.

[0036] In one embodiment, the sample water mechanism A includes a sample water buffer assembly and a sample water inlet assembly; the sample water buffer assembly includes a sample water buffer tank 1, the upper part of one side of the sample water buffer tank 1 is communicated with a first sample water inlet pipe 11, a sample water inlet automatic control valve 12 is arranged on the first sample water inlet pipe 11, and a sample water inlet manual valve 13 is arranged on one side of the sample water inlet automatic control valve 12; the upper part of one side of the sample water buffer tank 1 is also communicated with a sample water buffer tank overflow pipe 14, the lower part of the other side of the sample water buffer tank 1 is communicated with a sample water sampling pipe 16, and a sample water sampling valve 17 is arranged on the sample water sampling pipe 16; the bottom of the sample water buffer tank 1 is communicated with a second sample water inlet pipe 19, a sample water inlet valve 21 is arranged on the second sample water inlet pipe 19, a sample water sewage pipe 15 is communicated with the second sample water inlet pipe 19, and a sample water buffer tank sewage discharge valve 18 is arranged on the sample water sewage pipe 15;

[0037] The number of the first sample water inlet pipes 11 is at least 1 path, and multiple inlet pipes can be set according to requirements. The operation is switched through automatic control valves between different pipelines, and the dilution multiple of each path can be adjusted arbitrarily. In this embodiment, it is 1 path.

[0038] Specifically, the sample water buffer tank 1 can reduce the deviation caused by the splashing of sample water due to different sample water pressures. The first sample water inlet pipe 11 sends the sample water to the sample water buffer tank 1. The sample water buffer tank overflow pipe 14 flexibly controls the water volume in the sample water buffer tank 1. The sample water sampling pipe 16 facilitates the measurement of the sample water sampling. The sample water sewage pipe 15 transports sewage impurities in the sample water buffer tank 1 to the sewage disposal mechanism. The sample water inlet automatic control valve 12, the sample water inlet manual valve 13, the sample water sampling valve 17, the sample water buffer tank sewage valve 18, and the sample water inlet valve 21 are all used for the on-off of the pipeline.

[0039] In one embodiment, the sample water inlet assembly includes a sample water tank 2. The second sample water inlet pipe 19 connects the sample water buffer tank 1 and the sample water tank 2. An upper side of the sample water tank 2 is connected to a sample water tank overflow pipe 24. A bottom of the sample water tank 2 is connected to a sample water inlet pipe to a mixing water tank 26. A mixing water tank sample water inlet valve 341 is provided on the sample water inlet pipe to the mixing water tank 26. A sample water volume adjustment tube 22 is connected to the sample water inlet pipe to the mixing water tank 26. A sample water volume adjustment valve 25 is provided on the sample water volume adjustment tube 22. A high-precision radar level gauge is provided inside the sample water tank 2.

[0040] Specifically, the sample water tank 2 is used to measure the volume of the sample water. The second sample water inlet pipe 19 transports the sample water in the sample water buffer tank 1 to the sample water tank 2. The sample water tank overflow pipe 24 flexibly controls the water volume in the sample water tank 2. When there is too much sample water, it can be discharged through the sample water tank overflow pipe 24. The sample water volume adjustment tube 22 and the sample water volume adjustment valve 25 cooperate to adjust the volume of the sample water in the sample water tank 2. The mixing water tank sample water inlet valve 341 is used for the on-off of the pipeline.

[0041] In one embodiment, the dilution water mechanism B includes a dilution water buffer assembly and a dilution water inlet assembly. The dilution water buffer assembly includes a dilution water buffer tank 4. A first dilution water inlet pipe 41 is connected to the dilution water buffer tank 4. A dilution water inlet manual valve 42 is provided on the dilution water inlet pipe 41. An electric valve 43 is provided on one side of the dilution water inlet manual valve 42. An upper side of one side of the dilution water buffer tank 4 is connected to an overflow pipe 46. A bottom of the dilution water buffer tank 4 is connected to a second dilution water inlet pipe 47. A dilution water valve 51 is provided on the second dilution water inlet pipe 47. A dilution water sewage pipe 45 is connected to the second dilution water inlet pipe 47. A dilution water sewage valve 44 is provided on the dilution water sewage pipe 45.

[0042] Specifically, the dilution water buffer tank 4 can reduce the deviation caused by the splashing of dilution water due to the dilution water pressure. The first dilution water inlet pipe 41 sends the dilution water to the dilution water buffer tank 4. The overflow pipe 46 flexibly controls the water volume in the dilution water buffer tank 4. When there is too much dilution water, it can be discharged through the overflow pipe 46. The dilution water sewage pipe 45 transports sewage impurities in the dilution water buffer tank 4 to the sewage disposal mechanism. The dilution water inlet manual valve 42, the electric valve 43, the dilution water valve 51, and the dilution water sewage valve 44 are used for the on-off of the pipeline.

[0043] In one embodiment, the dilution water inlet assembly includes a dilution water tank 5, and a second dilution water inlet pipe 47 connects the dilution water buffer tank 4 and the dilution water tank 5; a dilution water inlet pipe to the mixing tank 54 is connected to the bottom of the dilution water tank 5, and a mixing tank inlet dilution water valve 342 is provided on the dilution water inlet pipe to the mixing tank 54. A dilution water volume adjustment tube 53 is connected to the dilution water inlet pipe to the mixing tank 54, and a dilution water volume adjustment valve 52 is provided on the dilution water volume adjustment tube 53; a high-precision radar level gauge is provided inside the dilution water tank 5.

[0044] Specifically, the dilution water tank 5 is used to measure the volume of dilution water. The dilution water volume adjustment tube 53 and the dilution water volume adjustment valve 52 cooperate to adjust the volume of dilution water in the dilution water tank 5, and the mixing tank inlet dilution water valve 342 is used for opening and closing the pipeline.

[0045] The dilution multiple of the sample water is controlled according to the liquid levels of the sample water tank 2 and the dilution water tank 5. The volume of the sample water inlet is fixed, so its liquid level is also fixed. The liquid level of the sample water tank 2 is accurately controlled by a high-precision radar level gauge and a capacitance switch on the high-precision radar level gauge, so as to control the volume of the sample water; according to the set dilution multiple, the corresponding liquid level of the dilution water tank 5 is calculated for the dilution water, and the volume of the dilution water is also controlled by a high-precision radar level gauge to achieve precise dilution.

[0046] In one embodiment, the mixed water mechanism C includes a mixing tank 3. An air diffuser pipe 31 is provided at the bottom inside the mixing tank 3. The air diffuser pipe 31 extends from one side of the mixing tank 3 to the outside of the mixing tank 3. An air diffuser pipe manual valve 32 is provided on the air diffuser pipe 31, and an air diffuser pipe automatic control valve 33 is provided on one side of the air diffuser pipe manual valve 32; an inlet pipe to the equipment 37 is provided on one side of the mixing tank 3, and a peristaltic pump 36 is provided on the inlet pipe to the equipment 37. The inlet pipe to the equipment 37 connects the mixing tank 3 and the detection mechanism; a mixing tank sewage discharge pipe 38 is connected to the bottom of the mixing tank 3, and a mixing tank sewage discharge valve 35 is provided on the mixing tank sewage discharge pipe 38.

[0047] Specifically, the mixing tank 3 is used for mixing the sample water and the dilution water. A sample water inlet pipe to the mixing tank 26 connects the sample water tank 2 and the mixing tank 3, and a dilution water inlet pipe to the mixing tank 54 connects the dilution water tank 5 and the mixing tank 3. Compressed air is used inside the air diffuser pipe 31 to make the sample water and the dilution water mix more evenly; the inlet pipe to the equipment 37 connects the mixing tank 3 and the detection mechanism and transports through the peristaltic pump 36. The mixing tank sewage discharge pipe 38 transports the sewage and impurities in the mixing tank 3 to the sewage discharge mechanism; the air diffuser pipe manual valve 32, the air diffuser pipe automatic control valve 33, and the mixing tank sewage discharge valve 35 are used for opening and closing the pipeline.

[0048] In one embodiment, the flushing mechanism includes a flushing water pipe 6. The flushing water pipe 6 is provided with multiple flushing water pipes. One end of one of the flushing water pipes is provided with a water inlet end 65. A hand valve 61 for the flushing water pipe is provided on this pipeline. A first electric valve 62 for the flushing water pipe is provided on one side of the hand valve 61 for the flushing water pipe. One of the flushing water pipes is connected to the sample water buffer tank 1. A second electric valve 63 for the flushing water pipe is provided on this pipeline. One of the flushing water pipes is connected to the sample water tank 2. A flushing water inlet valve 23 is provided on this pipeline. One of the flushing water pipes is connected to the mixing water tank 3. A third electric valve 64 for the flushing water pipe is provided on this pipeline.

[0049] In one embodiment, the overflow pipe 14 of the sample water buffer tank, the sewage discharge pipe 15 of the sample water, the overflow pipe 24 of the sample water tank are connected to the third sewage discharge pipe 73. The sewage discharge pipe 38 of the mixing water tank is connected to the first sewage discharge pipe 71. The overflow pipe 46, the dilution water sewage discharge pipe 45 are connected to the second sewage discharge pipe 72. The first sewage discharge pipe 71, the second sewage discharge pipe 72, and the third sewage discharge pipe 73 are connected and arranged.

[0050] Specifically, when the flushing mechanism operates, after a kind of sample water is diluted, the system automatically enters the flushing mode. After reaching the set flushing time, it enters the sewage discharge mode. After the two modes are switched and operated several times, it enters the next sample water collection program. When the flushing mode operates, the sewage discharge valve 35 of the mixing water tank is closed, and the flushing time is set according to the liquid level of the mixing water tank 3. When the flushing mode operates, the sample water buffer tank 1, the sample water tank 2, and the mixing water tank 3 will all maintain a certain liquid level to ensure the flushing effect. In order to ensure the cleanliness of the sample water buffer tank 1, the sample water tank 2, and the mixing water tank 3, one of the water inlet pipelines can be selected as the on-line chemical cleaning pipeline for the equipment, reducing the sampling deviation caused by the scaling of the water tank pipelines and ensuring the sampling accuracy. The on-line chemical cleaning must select the corresponding cleaning agent according to the nature of the sample water.

[0051] Among the above valves, the automatic control valve 12 for sample water inlet, the sewage discharge valve 18 of the sample water buffer tank, the sample water inlet valve 21, the flushing water inlet valve 23, the automatic control valve 33 for the aeration pipe, the sample water inlet valve 341 of the mixing water tank, the dilution water inlet valve 342 of the mixing water tank, the sewage discharge valve 35 of the mixing water tank, the electric valve 43, the dilution water valve 51, the first electric valve 62 for the flushing water pipe, the second electric valve 63 for the flushing water pipe, and the third electric valve 64 for the flushing water pipe are all high-precision and high-sensitivity capacitance switch valves. The valves adopt pneumatic valves, and the capacitance switch is used to detect the liquid level. The automatic valves and instrument signals are connected to the DCS cabinet and communicated to the automatic control DCS computer through the industrial control network. The parameters are set on the automatic control computer. As Figure 2 shown, the detection mechanism is any detection mechanism in the prior art and can be combined as required.

[0052] The working principle of a multi-channel dilution wastewater treatment device is as follows:

[0053] 1. Sample water selection: A queuing program is set up in the device. According to the required number of samples, queuing is carried out. The samples that arrive first are preferentially sampled and diluted, and the rest continue to queue and wait. After the current dilution is completed, the next sample is diluted in the queuing order, and so on, continuously;

[0054] 2. The sample water enters the sample water mechanism A and the dilution water mechanism B, and the dilution water pipeline and the sample water pipeline of the device perform corresponding actions respectively;

[0055] 3. Action of the sample water pipeline: First, the sample water buffer tank 1, the sample water tank 2, and the mixing water tank 3 are replaced and rinsed. After reaching the set replacement time, the sample water inlet is stopped. After reaching the set sewage discharge time, the sample water inlet valve 341 of the mixing water tank and the sewage discharge valve 18 of the sample water buffer tank are closed, and water inlet is prepared. The sample water first enters the sample water buffer tank 1 and then enters the sample water tank 2. The liquid level of the sample water tank 2 is accurately controlled by a high-precision radar level gauge. When the sample water reaches the specified liquid level of the sample water, the water inlet is stopped;

[0056] 4. Considering the delay of valve action and measurement, volume debugging is carried out through the sample water volume adjustment test tube 22 to ensure the accuracy of the sample water volume;

[0057] 5. The volume of the sample water is fixed, and the volume of the dilution water is automatically determined according to different set dilution multiples;

[0058] 6. Action of the dilution water pipeline: When the sample water enters, the dilution water pipeline starts to act simultaneously. The dilution water first enters the dilution water buffer tank 4, with temperature, pressure, and stable flow. The dilution water inlet valve 342 of the mixing water tank is closed. When the liquid level of the dilution water tank 5 reaches the set liquid level, the dilution water inlet is stopped. The liquid level of the dilution water tank is controlled by a high-precision radar level gauge to accurately control the liquid level;

[0059] 7. After the sample water in the sample water tank 2 and the dilution water in the dilution water tank 5 enter the mixing tank 3, the aeration pipe 31 starts to aerate. After reaching the set aeration time, the sample water and the dilution water are mixed evenly, and the aeration is stopped;

[0060] 8. The mixed and uniform sample is pumped to the detection equipment through the peristaltic pump 36 for detection and analysis.

[0061] In one embodiment, the treatment of citral wastewater:

[0062] 1. The COD of citral wastewater is about 30000 mg / L. The detection range of the online COD detector is 0 - 1000 mg / L. Therefore, the wastewater needs to be diluted 30 times, and the dilution multiple 30 is input into the control program;

[0063] 2. Flushing of the sample water pipeline: When the pressure of the first sample water inlet pipe 11 of citral is greater than 0.12 Mpa, the automatic control valve 12 of the sample water inlet will open automatically, and the sample water will enter the sample water buffer tank 1. At the same time, the sample water inlet valve 21 and the sample water inlet valve 341 of the mixing water tank will open automatically, and the sample water will start to flush the sample water buffer tank 1, the sample water tank 2, and the mixing water tank 3. After 1 minute, the sewage discharge valve 35 of the mixing water tank will open, and the automatic control valve 12 of the sample water inlet will close, and the flushing is completed.

[0064] 3. Sample water enters the mixing water tank: The automatic control valve 12 of the sample water inlet opens, and the sample water enters the sample water buffer tank 1. After 1 minute, the automatic control valve 12 of the sample water inlet closes (if there is too much sample water, it will be discharged from the overflow pipe); the sample water inlet valve 21 opens, and the sample water enters the sample water tank 2. When the sample water reaches the specified liquid level (50 mL of sample water), the sample water inlet valve 21 closes; then the sample water inlet valve 341 of the mixing water tank opens, and the sample water enters the mixing water tank 3, and the aeration pipe 31 starts aeration.

[0065] 4) Diluted water enters the mixing water tank: After the sample water operation is completed, the electric valve 43 opens automatically, and the diluted water enters the diluted water buffer tank 4. After 1 minute, the electric valve 43 closes automatically; the diluted water valve 51 opens automatically. According to the dilution multiple, the volume of the diluted water is calculated, and the required liquid level height is calculated based on the bottom area of the dilution water tank 4. When the liquid level of the dilution water tank 4 reaches the calculated height, the diluted water valve 51 closes automatically; the diluted water inlet valve 342 of the mixing water tank opens, and the diluted water enters the mixing water tank 3.

[0066] 5) Aeration and mixing: After the wastewater and the diluted water enter the mixing water tank 3, the automatic control valve 33 of the aeration pipe opens automatically. After 2 minutes of aeration, the automatic control valve 33 of the aeration pipe closes automatically, and the mixing is completed.

[0067] 6) Sample measurement: The on-line detection instrument starts the automatic detection program and extracts the water sample from the mixing water tank 3 for detection; after the detection program of the diluted citral wastewater is completed, it waits for the detection and analysis of the next wastewater program.

[0068] The present application provides a multi-channel dilution wastewater treatment device, which includes a sample water mechanism, a dilution water mechanism, a flushing mechanism, a sewage discharge mechanism, a mixed water mechanism and a detection mechanism; characterized in that, the mixed water mechanism is communicated with the detection mechanism, the flushing mechanism is communicated with the sample water mechanism and the mixed water mechanism, the sample water mechanism, the dilution water mechanism and the flushing mechanism are arranged above the mixed water mechanism, and the sample water mechanism, the dilution water mechanism and the mixed water mechanism are communicated through the sewage discharge mechanism; this device can dilute multiple solutions as needed, and theoretically can be used for any number of sampling numbers required; the dilution multiple of each channel is adjustable, and automatic dilution can be carried out according to the dilution requirements; the queuing logic can be customized according to the user's needs to achieve automatic, continuous, multi-channel adjustable and accurate dilution; after the dilution is completed, the backend sample testing equipment is automatically started to achieve full-process automatic control; the measurement is more accurate; sample water buffer tanks and dilution water buffer tanks are respectively installed at the water inlet end of this device, and water enters the sample water tank and the dilution water tank by means of self-gravity flow, and high-precision and high-sensitivity capacitance switches and high-precision radar level gauges are used for volume control and ratio dilution. The volume order of the sample water is in the order of hundreds of milliliters, and the error is smaller. In principle, it solves the problem of the dilution device on the current market using a peristaltic pump for volume control, which is affected by the inlet water pressure and the scaling of the hose wall resulting in a smaller cross-section of the fluid and thus affecting the volume accuracy and dilution accuracy; it has a wide range of applications. Because sample water buffer tanks and dilution water buffer tanks are respectively installed at the water inlet end of the device and are equipped with high-pressure flushing, it is applicable to the requirements of different pressures and different medium working conditions, and has a low requirement for the external water inflow. The sample water buffer tank, the dilution water buffer tank and the sample water tank are all equipped with overflow pipes, which are applicable to the requirements of all external water inflows to ensure that the entire device does not overflow.

[0069] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0070] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-channel dilution wastewater treatment device, comprising a sample water mechanism, a dilution water mechanism, a flushing mechanism, a sewage discharge mechanism, a mixing water mechanism and a detection mechanism; characterized in that: The mixing water mechanism is connected to the detection mechanism, the flushing mechanism is connected to the sample water mechanism and the mixing water mechanism, the sample water mechanism, the dilution water mechanism and the flushing mechanism are arranged above the mixing water mechanism, and the sample water mechanism, the dilution water mechanism and the mixing water mechanism are connected through the sewage discharge mechanism.

2. A multi-channel dilution wastewater treatment device according to claim 1, characterized in that: The sample water mechanism comprises a sample water buffer component and a sample water inlet component.

3. A multi-channel dilution wastewater treatment device according to claim 2, characterized in that: The sample water buffer assembly includes a sample water buffer tank, an upper portion of one side of the sample water buffer tank is connected to a first sample water inlet pipe, a sample water inlet automatic valve is provided on the first sample water inlet pipe, and a sample water inlet manual valve is provided on one side of the sample water inlet automatic valve; an upper portion of one side of the sample water buffer tank is also connected to a sample water buffer tank overflow pipe, and a lower portion of the other side of the sample water buffer tank is connected to a sample water sampling pipe, and a sample water sampling valve is provided on the sample water sampling pipe; a second sample water inlet pipe is connected to the bottom of the sample water buffer tank, a sample water inlet valve is provided on the second sample water inlet pipe, and a sample water sewage pipe is connected to the second sample water inlet pipe, and a sample water buffer tank sewage valve is provided on the sample water sewage pipe; the number of the first sample water inlet pipes is at least 1.

4. A multi-channel dilution wastewater treatment device according to claim 3, characterized in that: The sample water inlet assembly includes a sample water tank, and the second sample water inlet pipe is connected to the sample water buffer tank and the sample water tank; the upper part of one side of the sample water tank is connected to a sample water tank overflow pipe, the bottom of the sample water tank is connected to a sample water inlet mixing water tank pipe, the sample water inlet mixing water tank pipe is provided with a mixing water tank sample water inlet valve, the sample water inlet mixing water tank pipe is connected to a sample water volume debugging pipe, and the sample water volume debugging pipe is provided with a sample water volume debugging valve; a high-precision radar level meter is provided inside the sample water tank.

5. A multi-channel dilution wastewater treatment device according to claim 1, characterized in that: The dilution water mechanism comprises a dilution water buffer component and a dilution water inlet component.

6. A multi-channel dilution wastewater treatment device according to claim 5, characterized in that: The dilution water buffer assembly includes a dilution water buffer tank, which is connected to a first dilution water inlet pipe, on which a dilution water inlet manual valve is provided, and on one side of the dilution water inlet manual valve, an electric valve is provided; an overflow pipe is connected to an upper part of one side of the dilution water buffer tank, a second dilution water inlet pipe is connected to the bottom of the dilution water buffer tank, on which a dilution water valve is provided, a dilution water sewage pipe is connected to the second dilution water inlet pipe, on which a dilution water sewage valve is provided; the overflow pipe and the dilution water sewage pipe are connected to the second sewage pipe.

7. A multi-channel dilution wastewater treatment device according to claim 6, characterized in that: The dilution water inlet assembly includes a dilution water tank, and the second dilution water inlet pipe is connected to the dilution water buffer tank and the dilution water tank; the bottom of the dilution water tank is connected to a dilution water inlet mixing water tank pipe, and the dilution water inlet mixing water tank pipe is provided with a mixing water tank inlet dilution water valve; the dilution water inlet mixing water tank pipe is connected to a dilution water volume debugging pipe, and the dilution water volume debugging pipe is provided with a dilution water volume debugging valve; a high-precision radar level meter is provided inside the dilution water tank.

8. A multi-channel dilution wastewater treatment device according to claim 4, characterized in that: The mixing water mechanism includes a mixing water tank, an aeration pipe is provided at the bottom of the mixing water tank, the aeration pipe extends from one side of the mixing water tank to the outside of the mixing water tank, an aeration pipe hand valve is provided on the aeration pipe, and an aeration pipe automatic control valve is provided on one side of the aeration pipe hand valve; an equipment inlet pipe is provided on one side of the mixing water tank, a peristaltic pump is provided on the equipment inlet pipe, and the equipment inlet pipe is connected with the mixing water tank and the detection mechanism; a mixing water tank drain pipe is connected to the bottom of the mixing water tank, and a mixing water tank drain valve is provided on the mixing water tank drain pipe.

9. A multi-channel dilution wastewater treatment device according to claim 8, characterized in that: The flushing mechanism includes a flushing water pipe, and the flushing water pipe is provided with multiple flushing water pipes, one end of which is provided with a water inlet end, one flushing water pipe is connected to the sample water buffer tank, one flushing water pipe is connected to the sample water tank, and one flushing water pipe is connected to the mixing water tank.

10. A multi-channel dilution wastewater treatment device according to claim 8, characterized in that: The overflow pipe of the sample water buffer tank, the sample water drain pipe, and the sample water tank overflow pipe are connected to the third drain pipe, and the mixing water tank drain pipe is connected to the first drain pipe.

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