CN217838556U - High chlorine waste water COD value measurement pretreatment device - Google Patents
High chlorine waste water COD value measurement pretreatment device Download PDFInfo
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- CN217838556U CN217838556U CN202220866589.3U CN202220866589U CN217838556U CN 217838556 U CN217838556 U CN 217838556U CN 202220866589 U CN202220866589 U CN 202220866589U CN 217838556 U CN217838556 U CN 217838556U
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Abstract
The utility model provides a high chlorine waste water COD value measures preceding processing apparatus, including ion exchange unit, with overflow cup that ion exchange unit is connected, with the waste liquid pond that ion exchange unit is connected, ion exchange unit includes the exchange cup, set up in exchange resin in the exchange cup. Through setting up preceding processing apparatus before COD measures, get rid of the chloride ion through exchange resin, reduce the chloride ion concentration in the waste water to lower concentration, reduce follow-up COD measuring error, strengthen COD measurement accuracy, exchange resin can pass through reduction cyclic utilization simultaneously, has improved preceding processing apparatus life, reduces treatment cost.
Description
Technical Field
The utility model relates to a processing apparatus before high chlorine waste water COD value measurement.
Background
High-chlorine wastewater refers to wastewater containing chloride ions with higher concentration, and the wastewater is more and more along with the continuous development of modern industry.
The chemical oxygen demand mainly reflects the pollution degree of the water body by reducing substances and is an important water quality index. At present, the standard method for measuring the COD value is a dichromate method specified in the national standard GB11914-89, when the method is used for measuring the water body containing chloride, cl ions in a water sample are easily oxidized by an oxidant, the consumption of the oxidant is increased, and the measurement result is higher, so the method is not suitable for the water body containing the chloride ion concentration of more than 1000mg/L, and particularly, when the chloride ion concentration in the water body exceeds 2000mg/L, the measurement result still generates errors even if mercury sulfate is used as a masking agent.
There is a need for a device that can reduce the chloride ion concentration prior to COD measurement.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a processing apparatus before high chlorine waste water COD value measurement.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a high chlorine waste water COD value measures preceding processing apparatus, including ion exchange unit, with overflow cup that ion exchange unit is connected, with the waste liquid pond that ion exchange unit is connected, ion exchange unit includes the exchange cup, set up in exchange resin in the exchange cup. Through setting up preceding processing apparatus before COD is measured, get rid of chloride through exchange resin, reduce the chloride ion concentration in the waste water to lower concentration, reduce follow-up COD measuring error, strengthen COD measurement accuracy, exchange resin can improve preceding processing apparatus life through reduction cyclic utilization simultaneously, reduces treatment cost.
Preferably, the ion exchange device further comprises a mounting hole formed in the middle of the exchange cup, and an ion monitoring device installed in the mounting hole and used for monitoring the exchange resin, wherein the ion monitoring device comprises an ion monitoring probe arranged in the exchange resin, a display screen arranged outside the exchange cup and used for receiving signals from the ion monitoring probe, and a wire connected to the ion monitoring probe and the display screen, the wire penetrates through the mounting hole, and the wire and the mounting hole are hermetically arranged. The display screen is adopted to receive the signal of the ion monitoring probe for detecting the exchange rate of the exchange resin, and when the exchange rate reaches a certain value, the exchange resin can be replaced in time or the original adsorbed ions can be reduced, so that the processing precision is improved.
Preferably, the ion exchange device further comprises a filtering hole formed in the bottom of the exchange cup towards the side, a filter screen covered on the filtering hole, a first glass conduit penetrating through the filtering hole and connected with an external instrument, and a first valve arranged on the first glass conduit. The setting up of filter screen makes the waste liquid that carries to COD measuring device through the pretreatment device purer, reduces the major diameter impurity in the waste liquid, prevents that impurity from damaging first glass pipe and external instrument.
Preferably, the ion exchange device further comprises an ion exchange reagent adding port arranged at the top of the exchange cup. The overflow cup and the exchange cup are made of glass, and when the ion exchange reagent in the exchange cup is reduced, the ion exchange reagent can be directly added through the upper adding port.
Preferably, the overflow cup and the exchange cup are connected through a second glass conduit, and the second glass conduit is positioned at the middle upper part of the overflow cup and the exchange cup.
Preferably, the bottom of the overflow cup and the bottom of the exchange cup are respectively provided with a drain hole, the two drain holes are provided with drain pipes, the two drain pipes are communicated, and the two drain pipes are respectively provided with a drain valve.
Preferably, the drain pipe of the exchange cup is communicated with the waste liquid pool through a third glass conduit, and a manual valve is arranged on the third glass conduit. After the exchange resin is replaced or the ions absorbed in the resin are reduced, the waste liquid can be discharged by opening the manual valve, so that the method is convenient and quick.
Preferably, the upper half part of the overflow cup is provided with an overflow hole, the position of the overflow hole is higher than that of the second glass conduit, and the top of the overflow cup is provided with a water sample inlet hole. The water in the overflow cup is higher than the water in the exchange cup, so that the water in the overflow cup can be automatically conveyed to the exchange cup, and meanwhile, the water in the overflow cup can be discharged from the overflow hole when being higher than the overflow hole, so that the water is prevented from overflowing from the water sample inlet hole, and the overflow cup is protected.
Because of the application of the technical scheme, compared with the prior art, the utility model has the advantages of it is following: 1. the utility model discloses a set up preceding processing apparatus before COD measures, remove the chloridion through exchange resin, reduce the chloridion concentration in the waste water to lower concentration, reduce the error of follow-up COD measurement, strengthen COD measurement accuracy, exchange resin can be through reducing cyclic utilization simultaneously, improved preceding processing apparatus life, reduce the treatment cost;
2. the arrangement of the filter screen ensures that the waste liquid conveyed to the COD measuring device by the pretreatment device is purer, reduces large-diameter impurities in the waste liquid, and prevents the impurities from damaging the first glass conduit and external instruments;
3. the overflow cup and the exchange cup are made of glass, and when the ion exchange reagent in the exchange cup is reduced, the ion exchange reagent can be directly added through the upper adding port;
4. after the exchange resin is replaced or ions absorbed in the resin are reduced, the waste liquid can be discharged by opening the manual valve, so that the method is convenient and quick;
5. the upper half part of the overflow cup is provided with an overflow hole, the position of the overflow hole is higher than that of the second glass conduit, the top of the overflow cup is provided with a water sample inlet hole, so that the water in the overflow cup is higher than that in the exchange cup, the water in the overflow cup can be automatically conveyed to the exchange cup, and meanwhile, the water in the overflow cup can be discharged from the overflow hole when being higher than the overflow hole, so that the water is prevented from overflowing from the water sample inlet hole, and the overflow cup is protected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
wherein, 1, an ion exchange device; 10. exchanging the cup; 11. exchange resin; 12. an ion monitoring device; 121. an ion monitoring probe; 122. a display screen; 13. filtering with a screen; 14. a first glass conduit; 15. a first valve; 16. an ion exchange reagent addition port; 2. an overflow cup; 3. a waste liquid tank; 4. a second glass conduit; 5. a drain pipe; 6. a drain valve; 7. a third glass conduit; 71. and (4) a manual valve.
Detailed Description
The pretreatment device for measuring the COD value of the high-chlorine wastewater shown in figure 1 comprises an ion exchange device 1, an overflow cup 2 connected with the ion exchange device 1 and a waste liquid pool 3 connected with the ion exchange device 1, wherein the ion exchange device 1 comprises an exchange cup 10 and an exchange resin 11 arranged in the exchange cup 10.
Through setting up preceding processing apparatus before COD measures, get rid of the chloridion through exchange resin, reduce the chloridion concentration in the waste water to lower concentration, reduce follow-up COD measuring error, strengthen COD measurement accuracy, exchange resin can pass through reduction cyclic utilization simultaneously, has improved preceding processing apparatus life, reduces treatment cost.
The ion exchange device 1 further comprises a mounting hole arranged in the middle of the exchange cup 10, and an ion monitoring device 12 arranged in the mounting hole and used for monitoring the exchange resin 11, wherein the ion monitoring device 12 comprises an ion monitoring probe 121 arranged in the exchange resin 11, a display screen 122 arranged outside the exchange cup 10 and used for receiving signals from the ion monitoring probe 121, and a lead connected to the ion monitoring probe 121 and the display screen 122, the lead penetrates through the mounting hole, and the lead and the mounting hole are sealed.
The ion exchange device 1 further comprises a filtering hole formed in the bottom of the exchange cup 10 towards the side portion, a filter screen 13 covered on the filtering hole, a first glass conduit 14 penetrating through the filtering hole and connected with an external instrument, and a first valve 15 arranged on the first glass conduit 14. The setting up of filter screen makes the waste liquid that carries to COD measuring device through the pretreatment device purer, reduces the major diameter impurity in the waste liquid, prevents that impurity from damaging first glass pipe and external instrument.
The ion exchange unit 1 further comprises an ion exchange reagent addition port 16 provided at the top of the exchange cup 10. The overflow cup and the exchange cup are made of glass, and when the ion exchange reagent in the exchange cup is reduced, the ion exchange reagent can be directly added through the upper adding port.
The overflow cup 2 and the exchange cup 10 are connected through a second glass conduit 4, and the second glass conduit 4 is positioned at the middle upper part of the overflow cup 2 and the exchange cup 10.
The bottoms of the overflow cup 2 and the exchange cup 10 are respectively provided with a drain hole, the two drain holes are provided with drain pipes 5, the two drain pipes 5 are communicated and communicated with each other, and the two drain pipes 5 are respectively provided with a drain valve 6.
The drain pipe 5 of the exchanging cup 10 is communicated with the waste liquid pool 3 through a third glass conduit 7, and the third glass conduit 7 is provided with a manual valve 71. After the exchange resin is replaced or the ions absorbed in the resin are reduced, the waste liquid can be discharged by opening the manual valve, so that the method is convenient and quick.
The overflow hole has been seted up to the first half of overflow cup 2, and the overflow hole position is higher than the position of second glass pipe 4, and the water sample inlet hole has been seted up at the top of overflow cup 2.
The upper half part of the overflow cup is provided with an overflow hole, the position of the overflow hole is higher than that of the second glass conduit, the top of the overflow cup is provided with a water sample inlet hole, so that the water in the overflow cup is higher than that in the exchange cup, the water in the overflow cup can be automatically conveyed to the exchange cup, and meanwhile, the water in the overflow cup can be discharged from the overflow hole when being higher than the overflow hole, so that the water is prevented from overflowing from the water sample inlet hole, and the overflow cup is protected.
The working principle is as follows: when the measurement is started, all valves of the device are closed firstly, a water pump starts a water sample to enter the overflow cup after being pretreated, the water level reaches the height of the second glass conduit and then enters the exchange cup through the second glass conduit, the exchange resin treats the water sample with chloride ions, iron ions and the like, after a period of time, the first valve on the first glass conduit is opened, part of the water sample is input into an external instrument through the first glass conduit to be measured for COD, after the measurement is finished, the drainage valves on the drainage pipes at the bottom of the overflow cup and the exchange cup are opened, the residual water sample in the overflow cup and the exchange cup is emptied, and the next measurement is waited.
And when the exchange rate displayed by the display screen is lower than 10%, replacing the exchange resin or adding a reagent, reducing ions adsorbed by the original resin, manually opening a manual valve on the third glass conduit, and discharging the waste liquid to a waste liquid pool.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high chlorine waste water COD value measures preceding processing apparatus which characterized in that: the device comprises an ion exchange device (1), an overflow cup (2) connected with the ion exchange device (1), and a waste liquid pool (3) connected with the ion exchange device (1), wherein the ion exchange device (1) comprises an exchange cup (10) and exchange resin (11) arranged in the exchange cup (10).
2. The pretreatment device for measuring the COD value of the high-chlorine wastewater according to claim 1, characterized in that: ion exchange device (1) still including set up in the mounting hole in exchange cup (10) middle part, install in be used for the monitoring in the mounting hole ion monitoring devices (12) of exchange resin (11), ion monitoring devices (12) including set up in ion monitoring probe (121) in exchange resin (11), set up in exchange cup (10) external use is received and is come from display screen (122) of ion monitoring probe (121) signal, connect in ion monitoring probe (121) with the wire of display screen (122), the wire passes the mounting hole sets up, the wire with the mounting hole is sealed to be set up.
3. The high chlorine wastewater COD value measurement pretreatment device according to claim 2, characterized in that: the ion exchange device (1) further comprises a filtering hole formed in the bottom of the exchange cup (10) towards the side portion, a filter screen (13) covered on the filtering hole, a first glass guide pipe (14) arranged on the filtering hole in a penetrating mode and connected with an external instrument, and a first valve (15) arranged on the first glass guide pipe (14).
4. The pretreatment device for measuring the COD value of the high-chlorine wastewater according to claim 3, characterized in that: the ion exchange device (1) also comprises an ion exchange reagent adding port (16) arranged at the top of the exchange cup (10).
5. The pretreatment device for measuring the COD value of the high-chlorine wastewater according to claim 1, characterized in that: the overflow cup (2) and the exchange cup (10) are connected through a second glass conduit (4), and the second glass conduit (4) is positioned at the middle upper part of the overflow cup (2) and the exchange cup (10).
6. The pretreatment device for measuring the COD value of the high-chlorine wastewater according to claim 1, characterized in that: the bottom parts of the overflow cup (2) and the exchange cup (10) are respectively provided with a drain hole, the two drain holes are provided with drain pipes (5), the two drain pipes (5) are communicated and are communicated outwards, and the two drain pipes (5) are respectively provided with a drain valve (6).
7. The pretreatment device for measuring the COD value of the high-chlorine wastewater according to claim 6, characterized in that: the drain pipe (5) of the exchange cup (10) is communicated with the waste liquid pool (3) through a third glass conduit (7), and a manual valve (71) is arranged on the third glass conduit (7).
8. The pretreatment device for measuring the COD value of the high-chlorine wastewater according to claim 5, characterized in that: an overflow hole is formed in the upper half portion of the overflow cup (2), the position of the overflow hole is higher than that of the second glass guide pipe (4), and a water sample inlet hole is formed in the top of the overflow cup (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220866589.3U CN217838556U (en) | 2022-04-15 | 2022-04-15 | High chlorine waste water COD value measurement pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220866589.3U CN217838556U (en) | 2022-04-15 | 2022-04-15 | High chlorine waste water COD value measurement pretreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217838556U true CN217838556U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220866589.3U Active CN217838556U (en) | 2022-04-15 | 2022-04-15 | High chlorine waste water COD value measurement pretreatment device |
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| Country | Link |
|---|---|
| CN (1) | CN217838556U (en) |
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2022
- 2022-04-15 CN CN202220866589.3U patent/CN217838556U/en active Active
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