CN219737460U - Waste liquid discharge device for COD on-line monitor - Google Patents
Waste liquid discharge device for COD on-line monitor Download PDFInfo
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- CN219737460U CN219737460U CN202320889801.2U CN202320889801U CN219737460U CN 219737460 U CN219737460 U CN 219737460U CN 202320889801 U CN202320889801 U CN 202320889801U CN 219737460 U CN219737460 U CN 219737460U
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- Prior art keywords
- waste liquid
- electromagnetic valve
- cod
- way valve
- digestion
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- 239000002699 waste material Substances 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 43
- 230000029087 digestion Effects 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 16
- 239000012153 distilled water Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a waste liquid discharge device for a COD on-line monitor, which comprises: the device comprises an emptying port, a first electromagnetic valve, a digestion device, a second electromagnetic valve and a waste liquid outlet, wherein the emptying port, the first electromagnetic valve, the digestion tank, the second electromagnetic valve and the waste liquid outlet are sequentially connected through pipelines to form a discharge passage, and the first electromagnetic valve and the second electromagnetic valve are connected with a multi-way valve. According to the utility model, the multi-way valve and the metering device of the measuring system are moved out of the discharge passage, so that the pollution of waste liquid to the measuring system is avoided, the abrasion to the multi-way valve is reduced, the use frequency of the peristaltic pump is reduced, and the service lives of the multi-way valve and the peristaltic pump are prolonged; the multi-way valve is connected through the second electromagnetic valve arranged at the top of the digestion tank, top flushing is achieved, the consumption of distilled water is reduced while the digestion tank is comprehensively cleaned, water resources are saved, and the digestion tank is more environment-friendly.
Description
Technical Field
The utility model relates to the technical field of water quality analysis, in particular to a waste liquid discharge device for a COD on-line monitor.
Background
Chemical oxygen demand (COD or CODcr) refers to the amount of oxidizing agent consumed when the reducing substances in water are oxidized and decomposed under the action of an externally added strong oxidizing agent under certain strict conditions, expressed in mg/L of oxygen. Chemical oxygen demand reflects the degree of pollution of water by reducing substances including organic substances, nitrite, ferrous salts, sulfide and the like, but the amount of inorganic reducing substances in water and wastewater is generally relatively small, and pollution by organic substances is common, so COD can be used as a comprehensive index of the relative content of organic substances.
When the current COD on-line monitoring instrument discharges the waste liquid after the sample measurement, the waste liquid is discharged after being digested by a digestion device connected with a multi-way valve, and when the waste liquid is slightly precipitated, the waste liquid not only can abrade the multi-way valve, but also can pollute a metering device connected with the multi-way valve, and the accuracy of the test result is affected; meanwhile, the operation amount of the multi-way valve is increased in the discharging process, and the service life of the multi-way valve is reduced; in addition, in order to ensure the full digestion of the waste liquid, the digestion device is arranged above the multi-way valve, when the digestion device is cleaned, distilled water is driven by the peristaltic pump to enter the metering device, then enters the digestion device from the bottom through the switching of the multi-way valve, and only 1/3 of the height of the digestion device can be cleaned after each cleaning, so that the waste liquid residue at the middle upper part affects the stability of test data.
Therefore, it is necessary to provide a waste liquid discharging apparatus for a COD on-line monitor to effectively solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a waste liquid discharge device for a COD on-line monitor.
The technical scheme adopted by the utility model for solving the technical problems is to provide a waste liquid discharge device for a COD on-line monitor, which comprises the following components: the device comprises an emptying port, a first electromagnetic valve, a digestion device, a second electromagnetic valve and a waste liquid outlet, wherein the emptying port, the first electromagnetic valve, the digestion tank, the second electromagnetic valve and the waste liquid outlet are sequentially connected through pipelines to form a discharge passage, and the first electromagnetic valve and the second electromagnetic valve are connected with a multi-way valve.
Further, the first electromagnetic valve is arranged at the top of the digestion device, and the second electromagnetic valve is arranged at the bottom of the digestion device.
Further, the multi-way valve is connected with a distilled water inlet.
Further, the multi-way valve is configured to control communication between any two channels to which it is connected.
Further, the digestion device comprises a digestion tank, and a pipe wall diversion structure is arranged at the top in the digestion tank.
Further, the first electromagnetic valve and the second electromagnetic valve are three-way electromagnetic valves.
Further, the multi-way valve is connected with a metering device, and the metering device is used for quantitative metering of the solution during COD detection.
Further, peristaltic pumps are connected to the metering device.
Compared with the prior art, the utility model has the following beneficial effects: according to the waste liquid discharge device for the COD on-line monitor, the multi-way valve and the metering device of the measuring system are moved out of the discharge passage, so that pollution of waste liquid to the measuring system is avoided, abrasion to the multi-way valve is reduced, the use frequency of the peristaltic pump is reduced, and the service lives of the multi-way valve and the peristaltic pump are prolonged; the multi-way valve is connected through the second electromagnetic valve arranged at the top of the digestion tank, top flushing is achieved, the consumption of distilled water is reduced while the digestion tank is comprehensively cleaned, water resources are saved, and the digestion tank is more environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of a waste liquid discharging device for a COD on-line monitor according to an embodiment of the present utility model.
In the figure:
1. a peristaltic pump; 2. a metering device; 3. a multi-way valve; 4. a first electromagnetic valve; 6. a digestion device; 61. a digestion pool; 62. a tube wall split flow structure; 7. a second electromagnetic valve; 8. a waste liquid outlet; 9. an air vent; 10. a pipe; 11. and a distilled water inlet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, the terms "top", "bottom", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. The terms "disposed," "configured," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a waste liquid discharging device for a COD on-line monitor according to an embodiment of the present utility model.
Referring to fig. 1, a waste liquid discharge device for an online COD monitor according to an embodiment of the present utility model includes: the emptying port 9, the first electromagnetic valve 4, the digestion device 6, the second electromagnetic valve 7 and the waste liquid outlet 8 are sequentially connected through a pipeline 10 to form a discharge passage, and the first electromagnetic valve 4 and the second electromagnetic valve 7 are both connected with the multi-way valve 3.
Specifically, the first solenoid valve 4 is disposed at the top of the digestion device 6, and the second solenoid valve 7 is disposed at the bottom of the digestion device 6. The first electromagnetic valve 4 and the second electromagnetic valve 7 are three-way electromagnetic valves, and the first electromagnetic valve 4 can be controlled to be communicated with the digestion device 6 and the vent 9 or to be communicated with the digestion device 6 and the multi-way valve 3; the second solenoid valve 7 may be controlled to communicate the digestion unit 6 with the waste outlet 8 and to communicate the digestion unit 6 with the multi-way valve 3.
In one implementation, the multi-way valve 3 is connected with a distilled water inlet 11. The multi-way valve 3 is configured to control communication between any two channels to which it is connected.
In one implementation, the digestion device 6 includes a digestion tank 61 with a tube wall shunt structure 62 disposed on top of the digestion tank 61.
Specifically, the multi-way valve 3 is connected with a metering device 2, and the metering device 2 can be used for quantitative metering of the solution during COD detection. The metering device 2 is connected with a peristaltic pump 1. In COD detection, peristaltic pump 1 can be used to blow air so that the solution in metering device 2 is thoroughly and evenly mixed.
When the waste liquid discharge device for the COD on-line monitor in the embodiment of the utility model discharges waste liquid, the first electromagnetic valve 4 is controlled to act, so that the digestion tank 61 is communicated with the emptying port 9, and the waste liquid enters the digestion tank 61 through the emptying port 9; then switching the multi-way valve 3 to be communicated with the metering device 2 and the first electromagnetic valve 4, and starting the peristaltic pump 1 to blow air to the channel; controlling the first electromagnetic valve 4 to act so as to enable the top of the digestion tank 61 to be communicated with the multi-way valve 3, blowing air to the digestion tank 61, and simultaneously controlling the second electromagnetic valve 7 to act so as to enable the bottom of the digestion tank 61 to be communicated with the waste liquid outlet 8, and rapidly discharging waste liquid in the digestion tank 61 from the waste liquid outlet 8; the waste liquid does not need to flow through the multi-way valve 3 and the metering device 2, so that a measuring system is not polluted, the multi-way valve 3 of a key component is effectively protected, abrasion is reduced, particulate blockage is avoided, and the service life and the service efficiency are improved; and meanwhile, the time for discharging the waste liquid is greatly shortened, and the test time allowance is increased.
When the digestion device 6 is cleaned, the multi-way valve 3 is controlled to be switched, the distilled water inlet 11 is communicated with the metering device 2, distilled water enters the metering device 2 under the driving of the peristaltic pump 1, and the peristaltic pump 1 is closed; then the multi-way valve 3 is controlled to be switched, the metering device 2 and the first electromagnetic valve 4 are communicated, meanwhile, the first electromagnetic valve 4 is controlled to act and enable the multi-way valve 3 to be communicated with the top of the digestion tank 61, the second electromagnetic valve 7 is controlled to act and enable the bottom of the digestion tank 61 to be communicated with the waste liquid outlet 8, the peristaltic pump 1 is inflated, distilled water sequentially passes through the multi-way valve 3 and the first electromagnetic valve 4 from the metering device 2 to enter the digestion tank 61, the pipe wall split structure 62 enables distilled water to uniformly flow down along the pipe wall, the digestion tank 61 is comprehensively cleaned and then is discharged from the waste liquid outlet 8, and after the flow is carried out twice, cleaning is completed. The cleaning effect is good, the cleaning water consumption is low, the waste liquid amount is reduced, and the water resource is saved.
In summary, according to the waste liquid discharge device for the COD on-line monitor, the multi-way valve 3 of the measurement system is moved out of the discharge passage, so that pollution of waste liquid to the measurement system is avoided, abrasion to the multi-way valve 3 is reduced, the use frequency of the peristaltic pump 1 is reduced, and the service lives of the multi-way valve 3 and the peristaltic pump 1 are prolonged; the multi-way valve 3 is connected through the first electromagnetic valve 4 arranged at the top of the digestion tank 61, top flushing is achieved, the consumption of distilled water is reduced while the digestion tank 61 is comprehensively cleaned, water resources are saved, and the environment is protected.
While the utility model has been described with reference to the preferred embodiments, it is not intended to limit the utility model thereto, and it is to be understood that other modifications and improvements may be made by those skilled in the art without departing from the spirit and scope of the utility model, which is therefore defined by the appended claims.
Claims (8)
1. A waste liquid discharging apparatus for COD on-line monitoring appearance, characterized by comprising: the device comprises an emptying port, a first electromagnetic valve, a digestion device, a second electromagnetic valve and a waste liquid outlet, wherein the emptying port, the first electromagnetic valve, the digestion tank, the second electromagnetic valve and the waste liquid outlet are sequentially connected through pipelines to form a discharge passage, and the first electromagnetic valve and the second electromagnetic valve are connected with a multi-way valve.
2. The waste drain for a COD on-line monitor of claim 1, wherein the first solenoid valve is disposed at the top of the digestion device and the second solenoid valve is disposed at the bottom of the digestion device.
3. The waste discharge device for an on-line COD monitor according to claim 1, wherein the multi-way valve is connected to a distilled water inlet.
4. The waste drain for a COD on-line monitor of claim 1, wherein the multi-way valve is configured to control communication between any two channels to which it is connected.
5. The waste discharge device for a COD on-line monitor of claim 1, wherein the digestion device comprises a digestion tank, wherein a tube wall diverting structure is provided at the top of the digestion tank.
6. The waste liquid discharging apparatus for an on-line COD monitor as claimed in claim 1, wherein said first solenoid valve and said second solenoid valve are three-way solenoid valves.
7. The waste liquid discharge device for a COD on-line monitor according to claim 1, wherein the multi-way valve is connected with a metering device for quantitative metering of the solution at the time of COD detection.
8. The waste discharge device for an on-line COD monitor as claimed in claim 7, wherein peristaltic pump is connected to the metering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889801.2U CN219737460U (en) | 2023-04-19 | 2023-04-19 | Waste liquid discharge device for COD on-line monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889801.2U CN219737460U (en) | 2023-04-19 | 2023-04-19 | Waste liquid discharge device for COD on-line monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219737460U true CN219737460U (en) | 2023-09-22 |
Family
ID=88027304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320889801.2U Active CN219737460U (en) | 2023-04-19 | 2023-04-19 | Waste liquid discharge device for COD on-line monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219737460U (en) |
-
2023
- 2023-04-19 CN CN202320889801.2U patent/CN219737460U/en active Active
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