CN219178320U - Reflux device for helping analysis of chemical oxygen demand - Google Patents
Reflux device for helping analysis of chemical oxygen demand Download PDFInfo
- Publication number
- CN219178320U CN219178320U CN202223572069.0U CN202223572069U CN219178320U CN 219178320 U CN219178320 U CN 219178320U CN 202223572069 U CN202223572069 U CN 202223572069U CN 219178320 U CN219178320 U CN 219178320U
- Authority
- CN
- China
- Prior art keywords
- dropping funnel
- constant
- pipe
- oxygen demand
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010992 reflux Methods 0.000 title claims abstract description 29
- 239000000126 substance Substances 0.000 title claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 17
- 239000001301 oxygen Substances 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000004576 sand Substances 0.000 claims abstract description 4
- 238000001802 infusion Methods 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 17
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a reflux device for helping to analyze chemical oxygen demand, which comprises a reflux device body and a constant-pressure dropping funnel, wherein a condensing pipe is arranged on the upper side of the reflux device body, a lower liquid pipe orifice is arranged on the lower side of the constant-pressure dropping funnel, the lower end of the lower liquid pipe orifice is inserted on the condensing pipe, a flow regulating valve is arranged between the constant-pressure dropping funnel and the lower liquid pipe orifice, a constant-pressure pipe is further communicated between the constant-pressure dropping funnel and the lower liquid pipe orifice, a liquid inlet pipe and a ball float valve are arranged on one side of the upper end of the constant-pressure dropping funnel, a first liquid inlet is arranged at the upper end of the condensing pipe, and a sand grinding layer is arranged on the inner wall of the upper end of the first liquid inlet.
Description
Technical Field
The utility model relates to the technical field of chemical experimental equipment, in particular to a reflux device for helping to analyze chemical oxygen demand.
Background
Chemical oxygen demand COD (Chemical Oxygen Demand) is the measure of the amount of reducing species in a water sample that need to be oxidized chemically. Oxygen equivalent of substances (typically organic substances) that can be oxidized by strong oxidants in wastewater, wastewater treatment plant effluent and contaminated water. In the study of river pollution and industrial wastewater properties and in the operation management of wastewater treatment plants, it is an important and rapidly measurable organic pollution parameter, often expressed by the symbol COD. The detection of chemical oxygen demand requires a heating reflux device.
The existing device needs to slowly drop concentrated sulfuric acid solution at the upper end of a condensing tube, is easy to be dangerous, and is easy to escape low-boiling-point organic matters, so that experimental data are inaccurate.
Disclosure of Invention
The utility model aims to provide a reflux device for helping to analyze chemical oxygen demand, which aims to solve the problems that in the prior art, concentrated sulfuric acid solution is required to be slowly dripped at the upper end of a condensing tube, danger is easy to occur, and organic matters with low boiling point are easy to escape, so that experimental data are inaccurate.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a help analysis chemical oxygen demand's reflux unit, includes reflux unit body and constant voltage dropping funnel, the condenser pipe is installed to reflux unit body upside, the liquid mouth of pipe is installed to constant voltage dropping funnel downside, liquid mouth of pipe lower extreme is inserted and is established on the condenser pipe, and installs the flow control valve between constant voltage dropping funnel and the liquid mouth of pipe down, still the intercommunication has the constant voltage pipe between constant voltage dropping funnel and the liquid mouth of pipe down, feed liquor pipe and ball cock are installed to constant voltage dropping funnel upper end one side.
Further, the upper end of the condensing tube is provided with a first liquid inlet, and the inner wall of the upper end of the first liquid inlet is provided with a sand grinding layer.
Furthermore, a plurality of groups of constant-pressure dropping funnels and the lower liquid pipe orifices are inserted between the lower liquid pipe orifices and the condensing pipes, and the lower liquid pipe orifices are all in glass tubular structures, and the outer sides of the lower parts of the lower liquid pipe orifices are provided with limiting seats.
Further, the upper end of the constant-pressure dropping funnel is provided with a second liquid inlet, and the second liquid inlet is arranged in a funnel shape.
Further, a lower frame is arranged on the lower side of the reflux device body, and a controller is arranged on the outer side of the reflux device body.
Furthermore, an infusion pump is arranged on the liquid inlet pipe, and anti-corrosion layers are arranged on the inner wall of the infusion pump and the outer side of the ball float valve.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the lower end of the constant-pressure dropping funnel is inserted on the condensing pipe through the liquid outlet, and the flow regulating valve is arranged between the constant-pressure dropping funnel and the liquid outlet, so that the flow rate can be controlled by slowly dropping concentrated sulfuric acid by controlling the flow regulating valve of the constant-pressure dropping funnel, the concentrated sulfuric acid is not manually dropped, the experimental danger is reduced, and the time can be saved.
2. According to the utility model, the flow regulating valve is arranged between the constant-pressure dropping funnel and the lower liquid pipe orifice, and the constant-pressure pipe is also communicated between the constant-pressure dropping funnel and the lower liquid pipe orifice, so that the dropping speed of concentrated sulfuric acid can be controlled by the valve, the escape of low-boiling-point organic matters caused by the excessively high dropping speed is reduced, and the accuracy of experimental data is increased.
3. According to the utility model, the liquid inlet pipe and the float valve are arranged on one side of the upper end of the constant-pressure dropping funnel, the controller is arranged on the outer side of the reflux device body, the liquid inlet pipe is provided with the liquid conveying pump, and the float valve and the liquid conveying pump are electrically connected with the controller, so that when the liquid in the constant-pressure dropping funnel is lower than a preset value, the float valve transmits a signal to the controller, the controller controls the liquid conveying pump to add sulfuric acid liquid into the constant-pressure dropping funnel, and after the sulfuric acid liquid is added to a certain height, the float valve transmits the signal to the controller to control the liquid conveying pump to stop working and conveying the liquid, thereby realizing the purpose of intelligent liquid adding.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a front elevational view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the constant pressure dropping funnel of the present utility model;
fig. 3 is a functional block diagram of the present utility model.
In the figure: 1. a reflow apparatus body; 2. a condensing tube; 3. a first liquid inlet; 4. a constant pressure dropping funnel; 5. a flow regulating valve; 6. a constant pressure tube; 7. a second liquid inlet; 8. a controller; 9. a liquid discharging pipe orifice; 10. a limit seat; 11. a float valve; 12. a liquid inlet pipe; 13. an infusion pump; 14. and a lower frame.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Referring to fig. 1, 2 and 3, in an embodiment of the utility model, a reflux device for helping to analyze chemical oxygen demand includes a reflux device body 1 and a constant pressure dropping funnel 4, a condensation pipe 2 is installed on the upper side of the reflux device body 1, a lower liquid pipe orifice 9 is installed on the lower side of the constant pressure dropping funnel 4, the lower end of the lower liquid pipe orifice 9 is inserted on the condensation pipe 2, a flow regulating valve 5 is installed between the constant pressure dropping funnel 4 and the lower liquid pipe orifice 9, and a constant pressure pipe 6 is further communicated between the constant pressure dropping funnel 4 and the lower liquid pipe orifice 9, so that the flow regulating valve 5 of the constant pressure dropping funnel 4 is controlled, the concentrated sulfuric acid can be slowly added to control the flow rate, the concentrated sulfuric acid is not manually added, the risk of experiments is reduced, the time can be saved, the dropping acceleration of the concentrated sulfuric acid can be controlled by the flow regulating valve 5, the escape of low boiling point organic matters caused by the excessive dropping acceleration is reduced, the accuracy of experimental data is increased, and the purpose of intelligent adding liquid is facilitated by installing a liquid inlet pipe 12 and a ball valve 11 on one side of the upper end of the constant pressure dropping funnel 4.
Preferably, the upper end of the condensation pipe 2 is provided with a first liquid inlet 3, and the inner wall of the upper end of the first liquid inlet 3 is provided with a sand grinding layer, so that the stability of the upper end of the condensation pipe 2, which is fixed by inserting the liquid outlet 9, is improved.
Preferably, a plurality of groups of constant-pressure dropping funnel 4 and the lower liquid pipe orifice 9 are inserted between the lower liquid pipe orifice 9 and the condensing pipe 2, and the lower liquid pipe orifice 9 and the lower liquid pipe orifice 4 are of glass tubular structures, and a limiting seat 10 is arranged on the outer side of the lower part of the lower liquid pipe orifice 9, so that the stability of the lower liquid pipe orifice 9 inserted and fixed at the upper end of the condensing pipe 2 is further improved.
Preferably, the upper end of the constant pressure dropping funnel 4 is provided with a second liquid inlet 7, and the second liquid inlet 7 is arranged in a funnel shape.
Preferably, the lower frame 14 is installed to reflux unit body 1 downside, the controller 8 is installed in the reflux unit body 1 outside, install infusion pump 13 on the feed liquor pipe 12, and ball float 11 and infusion pump 13 all are less than when predetermineeing the value with controller 8 electric connection for the inside liquid of constant pressure dropping funnel 4, ball float 11 gives controller 8 with control infusion pump 13 to the inside sulphuric acid liquid that adds of constant pressure dropping funnel 4, after adding to certain height ball float 11 gives controller 8 with signal transmission control infusion pump 13 stop work and carry liquid, thereby realize the purpose of intelligent interpolation liquid.
Preferably, the inner wall of the infusion pump 13 and the outer side of the ball float valve 11 are provided with anti-corrosion layers, so that the anti-corrosion performance is excellent, and the service lives of the ball float valve 11 and the infusion pump 13 are prolonged.
The working principle and the using flow of the utility model are as follows: because establish the constant voltage dropping funnel 4 lower extreme in condenser pipe 2 upper portion through lower liquid mouth of pipe 9, and install flow control valve 5 and constant voltage pipe 6 between constant voltage dropping funnel 4 and the lower liquid mouth of pipe 9 for through the flow control valve 5 of control constant voltage dropping funnel 4, can let concentrated sulfuric acid slowly drip the control velocity of flow, need not the manual intensive sulfuric acid that drips, reduced the danger of experiment, can also save time, can control concentrated sulfuric acid's dropping speed with flow control valve 5 moreover, reduce because of the excessive quick escape that leads to low boiling point organic matter of dropping speed, increased experimental data's accuracy.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a help analysis chemical oxygen demand's reflux unit, includes reflux unit body (1) and constant pressure dropping funnel (4), its characterized in that: the utility model discloses a reflux device, including reflux device body (1), condenser pipe (2) are installed to reflux device body (1) upside, drain pipe mouth (9) are installed to constant voltage dropping funnel (4) downside, drain pipe mouth (9) lower extreme is inserted and is established on condenser pipe (2), and installs flow control valve (5) between constant voltage dropping funnel (4) and drain pipe mouth (9), still communicate constant voltage pipe (6) between constant voltage dropping funnel (4) and drain pipe mouth (9), feed liquor pipe (12) and ball cock (11) are installed to constant voltage dropping funnel (4) upper end one side.
2. A reflux apparatus for aiding analysis of chemical oxygen demand according to claim 1, wherein: the upper end of the condensing tube (2) is provided with a first liquid inlet (3), and the inner wall of the upper end of the first liquid inlet (3) is provided with a sand grinding layer.
3. A reflux apparatus for aiding analysis of chemical oxygen demand according to claim 1, wherein: a plurality of groups of liquid discharging nozzles (9) and condensing pipes (2) are inserted between the liquid discharging nozzles, and the constant-pressure liquid dropping funnel (4) and the liquid discharging nozzles (9) are all in glass tubular structures.
4. A reflux apparatus for aiding analysis of chemical oxygen demand according to claim 1, wherein: the upper end of the constant pressure dropping funnel (4) is provided with a second liquid inlet (7), and the second liquid inlet (7) is arranged in a funnel shape.
5. A reflux apparatus for facilitating analysis of chemical oxygen demand according to claim 4, wherein: the lower frame (14) is installed on the lower side of the backflow device body (1), and the controller (8) is installed on the outer side of the backflow device body (1).
6. A reflux apparatus for aiding analysis of chemical oxygen demand according to claim 1, wherein: an infusion pump (13) is arranged on the liquid inlet pipe (12), and anti-corrosion layers are arranged on the inner wall of the infusion pump (13) and the outer side of the float valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223572069.0U CN219178320U (en) | 2022-12-28 | 2022-12-28 | Reflux device for helping analysis of chemical oxygen demand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223572069.0U CN219178320U (en) | 2022-12-28 | 2022-12-28 | Reflux device for helping analysis of chemical oxygen demand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219178320U true CN219178320U (en) | 2023-06-13 |
Family
ID=86667118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223572069.0U Active CN219178320U (en) | 2022-12-28 | 2022-12-28 | Reflux device for helping analysis of chemical oxygen demand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219178320U (en) |
-
2022
- 2022-12-28 CN CN202223572069.0U patent/CN219178320U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219178320U (en) | Reflux device for helping analysis of chemical oxygen demand | |
| CN219084542U (en) | Water quality on-line monitoring device is with subassembly that intakes | |
| CN208809524U (en) | A kind of adjustable extracts the device of fluorescent emulsion wastewater supernatant fluid | |
| CN207899384U (en) | A kind of adjusting device of control oilfield additive addition | |
| CN104743629A (en) | Controllable double dissolved air flotation system | |
| CN217996877U (en) | Adjustable sewage treatment internal reflux water distribution device | |
| CN206730840U (en) | A kind of acid mist absorbing device | |
| CN218945046U (en) | Neutralization reaction system | |
| CN219009967U (en) | Vertical dissolved air tank additionally provided with air-water pressure balance control pipe | |
| CN220656267U (en) | Positive pressure type automatic proportional mixing device for fire control | |
| CN111521746A (en) | Water quality monitoring station | |
| CN212581597U (en) | Aeration system for biological contact oxidation sewage treatment process | |
| CN215693228U (en) | Dull and stereotyped membrane belt cleaning device of MBR | |
| CN219907216U (en) | Adjustable efficient gas stripping reflux device | |
| CN211232424U (en) | Defoaming agent instilling device mounted on gas transmission pipeline | |
| CN220237952U (en) | Invariable low-flow intermittent water inlet device for wastewater treatment | |
| CN201270003Y (en) | Two-phase flow liquid level self-regulating apparatus | |
| CN215886515U (en) | Adjustable and recoil air stripping reflux unit | |
| CN209957406U (en) | Anti-siphon device for sewage treatment reactor | |
| CN213854435U (en) | ASD automatic safety water treatment chemical adding device | |
| CN210457811U (en) | Sludge reflux quantity adjusting device | |
| CN211688356U (en) | Air lift channel structure for sewage treatment | |
| CN216978506U (en) | Sampling device and detection equipment for detecting index of sludge mixed liquid | |
| CN219935826U (en) | Online residual chlorine detection system | |
| CN215233982U (en) | Concentrated sulfuric acid diluting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240202 Address after: 312000, No. 250-3 Jinkeqiao Avenue, Keqiao Street, Keqiao District, Shaoxing City, Zhejiang Province (commitment declaration) (No. 4 under the custody of Shaoxing Shilian Business Secretary Co., Ltd.) Patentee after: Shaoxing Danqi Information Technology Co.,Ltd. Country or region after: China Address before: Room 0909, Building 1, east of Central Avenue (next to Fu'en Bridge), Yuecheng District, Shaoxing City, Zhejiang Province, 312000 Patentee before: Shaoxing Yigao Testing Technology Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |