CN203365268U - Lab measuring device for lab sludge density index - Google Patents
Lab measuring device for lab sludge density index Download PDFInfo
- Publication number
- CN203365268U CN203365268U CN 201320401921 CN201320401921U CN203365268U CN 203365268 U CN203365268 U CN 203365268U CN 201320401921 CN201320401921 CN 201320401921 CN 201320401921 U CN201320401921 U CN 201320401921U CN 203365268 U CN203365268 U CN 203365268U
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- China
- Prior art keywords
- water tank
- valve
- pipeline
- density index
- sdi
- 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.)
- Expired - Fee Related
Links
- 239000010802 sludge Substances 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000033116 oxidation-reduction process Effects 0.000 claims abstract description 8
- 238000011545 laboratory measurement Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 238000001223 reverse osmosis Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a lab measuring device for lab sludge density index. The device comprises a water tank and a measuring cylinder with scales, wherein the water tank and the measuring cylinder are connected through a pipeline, on which a pressure-stabilizing valve, a water pump and a regulating valve are sequentially mounted; one end of the pipeline penetrates through the top of the water tank and extends to the bottom of the water tank; the other end of the pipeline is placed above the measuring cylinder; a timer is mounted on a pipeline between the water pump and the regulating valve; a pressure gauge, a sludge density index instrument with a sludge density index instrument valve, an electrical conductivity instrument with an electric conductivity instrument valve and an oxidation-reduction potentiometer with an oxidation-reduction potentiometer valve are mounted on the pipeline between the regulating valve and the measuring cylinder sequentially from left to right; a water inlet is formed in the top of the water tank; a drainage valve is mounted at the bottom of the water tank; and a water level limiting pipe is mounted on the right side wall of the water tank. The device can realize a sludge density index test without operation equipment to provide pressure, so as to simplify the original experimental equipment and save cost.
Description
Technical field
The utility model belongs to the reverse osmosis purified water technical field, particularly a kind of for laboratory silt density index (SDI) laboratory measurement device.
Background technology
Granule foreign and colloid are maximum difficult problems during reverse osmosis equipment is used to the pollution of film.The impurity that can pollute reverse osmosis membrane is a lot, common are the corrosion product of clay particulate, organism, colloid silicon, bacterium and iron etc.
In the design and application of counter-infiltration system, silt density index (SDI) SDI is the important indicator that characterizes the counter-infiltration system influent quality.SDI is checking counter-infiltration (RO) feedwater quality and pretreating effect, measures suspension, mud, metal oxide, SiO in water
2important indicator Deng fraction of particle.
At present, for overcoming the pollution to film of granule foreign and colloid, adopted a lot of design proposals in reverse osmosis equipment design, but various design proposal all especially characteristics and deficiency, for specific water source, develop targetedly the silt density index (SDI) experimental provision and seem very necessary.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of for laboratory silt density index (SDI) laboratory measurement device.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of for laboratory silt density index (SDI) laboratory measurement device, comprise water tank and be with graduated graduated cylinder, from water tank between graduated cylinder by pressure maintaining valve is installed successively, the pipeline of water pump and variable valve connects, one end of pipeline is through the bottom that extends to water tank after tank top, the other end of pipeline is placed in the top of graduated cylinder, on the pipeline between water pump and variable valve, timer is installed, to the pipeline between graduated cylinder, tensimeter is installed successively from left to right at variable valve, silt density index (SDI) instrument with silt density index (SDI) instrument valve, with the conductivity meter of conductivity meter valve and with the oxidation-reduction potential instrument of oxidation-reduction potential instrument valve, top at described water tank has water inlet, in the bottom of water tank, the pipeline with draining valve is installed, right side wall upper end at water tank is equipped with the water level position-limiting tube.
And described timer adopts manual triggers timer or pressure sensing timer.
And described graduated cylinder is the 500mL graduated cylinder, the miillpore filter of described silt density index (SDI) instrument is 0.45 μ m filter membrane, and diameter is 47mm.
Advantage of the present utility model and good effect are
1, the utility model device does not need operational outfit to provide pressure just can realize laboratory SDI test, has simplified original experimental facilities, provides cost savings.
2, the utility model can be monitored conductivity, ORP simultaneously, and the control system automaticity is high, saves manpower, and experiment test is more accurate.
The accompanying drawing explanation
Fig. 1 is the utility model device one-piece construction schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of for laboratory silt density index (SDI) laboratory measurement device, as shown in Figure 1, comprise water tank 2 and be with graduated graduated cylinder 14, from water tank between graduated cylinder, by installed in series in order, pressure maintaining valve 3 being arranged, the pipeline of water pump 4 and variable valve 6 connects, one end of pipeline is through the bottom that extends to water tank after tank top, the other end of pipeline is placed in the top of graduated cylinder, timer 5 is installed on the pipeline between water pump and variable valve, to the pipeline between graduated cylinder, tensimeter 7 is installed successively from left to right at variable valve, silt density index (SDI) instrument 8 with silt density index (SDI) instrument valve 9, with the conductivity meter 10 of conductivity meter valve 11 and with the oxidation-reduction potential instrument 12 of oxidation-reduction potential instrument valve 13, have water inlet 1 at the top of described water tank, in the bottom of water tank, the pipeline with draining valve 16 is installed, right side wall upper end at water tank is equipped with water level position-limiting tube 15.
In concrete enforcement of the present utility model, described timer adopts manual triggers timer or pressure sensing timer.
In concrete enforcement of the present utility model, described graduated cylinder is the 500mL graduated cylinder, and the miillpore filter of described silt density index (SDI) instrument (SDI) is 0.45 μ m filter membrane, and diameter is 47mm.
Principle of work
(1) open silt density index (SDI) instrument valve, adjust variable valve and pressure maintaining valve, start water pump, make the tensimeter number of degrees be stabilized in 0.21MPa, and rinse sampling line with constant current;
(2) with tweezers, the filter membrane of silt density index (SDI) instrument is packed in the press mold device, with after water-soaked, tightening knob is partly screwed, get rid of the bubble of filter membrane bottom;
(3) adjust variable valve, pressure maintaining valve, under the condition that is 0.21MPa at pressure, record the required time t of inceptive filtering 500mL water
0.
(4) keeping under the condition that tensimeter is 0.21MPa continuous filtration 15min; Then, again measure and filter the required time t of 500mL water sample
1;
(5) by the t measured
0, t
1be calculated as follows:
SDI=(1-t
0/t
1)。
Claims (3)
1. one kind for laboratory silt density index (SDI) laboratory measurement device, it is characterized in that: comprise water tank and be with graduated graduated cylinder, from water tank between graduated cylinder by pressure maintaining valve is installed successively, the pipeline of water pump and variable valve connects, one end of pipeline is through the bottom that extends to water tank after tank top, the other end of pipeline is placed in the top of graduated cylinder, on the pipeline between water pump and variable valve, timer is installed, to the pipeline between graduated cylinder, tensimeter is installed successively from left to right at variable valve, silt density index (SDI) instrument with silt density index (SDI) instrument valve, with the conductivity meter of conductivity meter valve and with the oxidation-reduction potential instrument of oxidation-reduction potential instrument valve, top at described water tank has water inlet, in the bottom of water tank, the pipeline with draining valve is installed, right side wall upper end at water tank is equipped with the water level position-limiting tube.
2. according to claim 1 for laboratory silt density index (SDI) laboratory measurement device, it is characterized in that: described timer adopts manual triggers timer or pressure sensing timer.
3. according to claim 1 for laboratory silt density index (SDI) laboratory measurement device, it is characterized in that: described graduated cylinder is the 500mL graduated cylinder, and the miillpore filter of described silt density index (SDI) instrument is 0.45 μ m filter membrane, and diameter is 47mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320401921 CN203365268U (en) | 2013-07-08 | 2013-07-08 | Lab measuring device for lab sludge density index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320401921 CN203365268U (en) | 2013-07-08 | 2013-07-08 | Lab measuring device for lab sludge density index |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365268U true CN203365268U (en) | 2013-12-25 |
Family
ID=49813014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320401921 Expired - Fee Related CN203365268U (en) | 2013-07-08 | 2013-07-08 | Lab measuring device for lab sludge density index |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281219A (en) * | 2021-06-10 | 2021-08-20 | 深圳市华中航技术检测有限公司 | Laboratory measuring device for laboratory sludge density index |
-
2013
- 2013-07-08 CN CN 201320401921 patent/CN203365268U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281219A (en) * | 2021-06-10 | 2021-08-20 | 深圳市华中航技术检测有限公司 | Laboratory measuring device for laboratory sludge density index |
| CN113281219B (en) * | 2021-06-10 | 2022-06-28 | 深圳市华中航技术检测有限公司 | Be used for laboratory silt density index laboratory measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20190708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |