CN2466640Y - Automatic chemical oxygen demand (COD) in-situ monitor - Google Patents
Automatic chemical oxygen demand (COD) in-situ monitor Download PDFInfo
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- CN2466640Y CN2466640Y CN 01204164 CN01204164U CN2466640Y CN 2466640 Y CN2466640 Y CN 2466640Y CN 01204164 CN01204164 CN 01204164 CN 01204164 U CN01204164 U CN 01204164U CN 2466640 Y CN2466640 Y CN 2466640Y
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- chemical oxygen
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Abstract
The utility model relates to an automatic chemical oxygen demand (COD) in-situ monitor, which is used for monitoring for the environmental protection. The sewage collected by a sampling pump is filtered by a filter, the sewage passing through a sampling valve and a water sample meter enters a blending valve and is blended and counteracted by the blending valve and a counteracting valve. The lower end of the counteracting valve is connected with a cooling valve; the lower end of the cooling valve is connected with a colour comparing valve; the lower end of the colour comparing valve is connected with a waste liquid box. The colour comparing valve is positioned in a photoelectric detector; the photoelectric detector sends photoelectric signals to a signal processing system to be processed to calculate the COD value. The monitor has the advantages of reasonable structure, high reliability, high accuracy, convenient maintenance and low operation cost.
Description
The utility model relates to a kind of environment supervision instrument, is a kind of chemical oxygen consumption (COC) (COD) online automatic monitor.
In the prior art, the chemical oxygen consumption (COC) analytical approach has following several: circumfluence method is the laboratory classical way, needs through sampling, backflow and titration operation, and the method speed is slow, operates loaded down with trivial details; The quick catalysis method needs through hand sampling, clears up and the colorimetric operation, is " new style chemical oxygen consumption measuring instrument " patented technology of 89100116 as the patent No., though this method speed is very fast, can not be used for on-the-spot on-line monitoring; The online auto monitoring method is " sewage chemical oxygen demand automonitor " patented technology of 94226567 as the patent No., has that reliability is low, a poor accuracy, defective such as difficult in maintenance.
The purpose of this utility model provide a kind of rational in infrastructure, reliability is high, accuracy good, easy to maintenance, chemical oxygen consumption (COC) (COD) online automatic monitor that operating cost is low.
The purpose of this utility model realizes by following measure: chemical oxygen consumption (COC) (COD) online automatic monitor, comprise housing, sampling pump links to each other with box effluent filter by pipeline, between effluent filter and the sampling valve constant flow pump is arranged, sampling valve links to each other with the water sample meter, and water sample meter lower end is connected with the solenoid valve that is used for the water sample emptying, and the mixing valve is arranged at the solenoid valve bottom, mixing valve upper end connects the reagent pipe and is used for the solenoid valve of distilled water emptying, and the reagent pipe connects reagent bottle.Mixing valve lower end by ground with clear up valve and link to each other, clear up that valve is outside to be well heater, clear up the valve lower end and connect the cooling valve, cooling valve lower end is connected with the colorimetric valve, the colorimetric valve places in the photoelectric detection system, photoelectric detection system calculates the COD value by disposal system.
Be connected with two groups of filtering layers anyhow in the casing of above-mentioned box effluent filter, sampling pump connects box effluent filter top by pipeline, and there is overflow passage on effluent filter top for discharging unnecessary sewage, and constant flow pump links to each other with the water delivering orifice of sewage water filtration case.
The sample introduction pipe of above-mentioned sampling valve links to each other with valve body, the valve body side roof part has the sample introduction arm, there is leakage fluid dram its lower end, its internal sleeve cartridge spool, be evenly equipped with a plurality of fulcrums on the bottom outer wall of spool, spool top is connected by two break-in face seals with valve body, and the valve interior wall that is positioned at the spool bottom has the arc fulcrum, there is control coil the outside of valve body, and control coil connects controller.
The liquid-feeding tube thread connection measuring room of above-mentioned water sample meter, both are adjustable.Measuring room one side has run-down pipe, and the adjustable pipe bottom surface, bottom of liquid-feeding tube is positioned at below the measuring room run-down pipe bottom line, and joining interface is arranged at the measuring room bottom.
The liquid feeding bucket is arranged at the valve body top of above-mentioned mixing valve, its sidepiece has run-down pipe, leakage fluid dram is arranged at the bottom, valve inner is with spool, be evenly equipped with a plurality of above fulcrums on the external wall of upper portion of spool, the spool bottom is connected by two break-in face seals with valve body, and spool is the glass capsulation iron core, there is control coil the outside of valve body, and control coil connects controller.
The outside cooling jacket that connects of the person in charge of above-mentioned cooling valve, its water inlet pipe links to each other with water tank by ebullator, and its drainpipe directly links to each other with water tank.
Its principle of work: sampling pump is defeated by the sewage effluent filter with the sewage sample, constant flow pump will be defeated by the sampling valve sampling through the water sample behind the effluent filter, sampling valve joins the water sample meter with water sample, join the mixing valve through the water sample after the metering, volume pump adds mixing valve and water sample mixing with quantitative reagent simultaneously, mixed liquor high temperature in clearing up valve is cleared up behind the mixing, in the cooling valve, carry out the recirculated water cooling afterwards, cooled mixed liquor enters the colorimetric valve, determines the size of COD value in the colorimetric valve by the method for beam split colorimetric.
The utility model mainly contains following characteristics:
1, reliability height, the control system failure rate is low.
2, the anti-blocking property of sampling valve strong, exempt to clean, water sample has real-time representativeness.
3, big caliber vitreous electricity magnet valve is difficult for blocking up, and the life-span is long, and is reliable.
4, only use a kind of reagent, test is accurate, and speed is fast.
5, adopt the color liquid crystal touch-screen, realize monitoring that control is integrated.
6, the water route circuit separates, and is rational in infrastructure, is applicable to the sewage on-line monitoring.
Narrate below with reference to drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of water sample metering valve.
Fig. 3 is the structural representation of sampling valve.
Fig. 4 is the structural representation of mixing valve.
Embodiment 1:
With reference to Fig. 1 is an embodiment of the present utility model, there is housing this monitor outside, place the sampling pump (1) of sewage to link to each other with box double filter layers effluent filter (4) by pipeline (2), run-down pipe (3) is arranged at effluent filter (4) top, constant flow pump (5) links to each other with the other end of sewage water filtration case (4), constant flow pump (5) connects sampling valve (11) by pipeline (8), one termination return pipe (7) of sampling valve (11), the other end of sampling valve (11) links to each other with water sample meter (12), the top of water sample meter connects distilled water tank (14) by solenoid valve (13), water sample meter (12) lower end links to each other with the solenoid valve that is used for the water sample emptying (9), solenoid valve (9) bottom connects mixing valve (18), mixing valve (18) sidepiece has run-down pipe, the feeder hopper of mixing valve (18) upper end connects reagent pipe (19) and is used for the solenoid valve (17) of distilled water emptying, solenoid valve (17) upper end connects distilled water meter (16), and distilled water meter (16) is connected with distilled water tank (14) by solenoid valve (15).Between reagent pipe (19) and the reagent bottle (23) volume pump (21) is arranged, mixing valve (18) lower end by ground with clear up valve (25) and link to each other, clear up valve (25) sidepiece run-down pipe is arranged, clearing up valve outside is well heater (24), clear up valve (25) lower end and connect cooling valve (26), cooling valve (26) sidepiece has run-down pipe, and there is cooling jacket (27) person in charge outside of cooling valve (26), its water inlet pipe links to each other with water tank (29) by ebullator (28), and its drainpipe directly links to each other with water tank.Cooling valve (26) lower end links to each other with colorimetric valve (20), colorimetric valve (20) lower end connects exhausted bath box (22), colorimetric valve (20) places in the photoelectric detection system (10), and photoelectric detection system (10) is sent photosignal into signal processing system and handled, and calculates the COD value.
Anyhow two groups of filtering layers are arranged in the casing of above-mentioned box effluent filter (4), sampling pump (1) connects box effluent filter (4) top by pipeline (2), overflow passage (3) is arranged at effluent filter (4) top, and constant flow pump (5) links to each other with the water delivering orifice of sewage water filtration case (4).
Embodiment 2:
With reference to Fig. 1, Fig. 3, Fig. 2 and Fig. 4 is embodiment of the present utility model, and its agent structure as mentioned above.The sample introduction pipe (6) of its sampling valve (11) links to each other with valve body (34), valve body (34) side roof part has sample introduction arm (30), there is leakage fluid dram its lower end, its internal sleeve cartridge spool (31), be evenly equipped with three fulcrums (32) on the bottom outer wall of spool (31), spool (31) top is connected by two break-in face seals with valve body (34), and the valve interior wall that is positioned at the spool bottom has the arc fulcrum, there is control coil (33) outside of valve body (34), and control coil connects controller.
Liquid-feeding tube (35) the thread connection measuring room (37) of above-mentioned water sample meter (12), measuring room (37) one sides have run-down pipe (36), the adjustable pipe bottom surface, bottom of liquid-feeding tube (35) is positioned at measuring room run-down pipe (36) below the bottom line, and interface is arranged at measuring room (37) bottom.
Liquid feeding bucket (42) is arranged at valve body (38) top of above-mentioned mixing valve (18), its sidepiece has run-down pipe, leakage fluid dram is arranged at the bottom, valve inner is with spool (40), be evenly equipped with three fulcrums on the external wall of upper portion of spool (40), spool (40) bottom is connected by two break-in face seals with valve body (38), and spool (40) is the glass capsulation iron core, there is control coil (39) outside of valve body, and control coil connects controller.
There is cooling jacket (27) person in charge outside of above-mentioned cooling valve (26), and its water inlet pipe links to each other with water tank (29) by ebullator (28), and its drainpipe directly links to each other with water tank (29).
Claims (6)
1, a kind of chemical oxygen consumption (COC) (COD) online automatic monitor, comprise housing, it is characterized in that sampling pump (1) links to each other with box effluent filter (4), between effluent filter (4) and the sampling valve (11) constant flow pump (5) is arranged, sampling valve (11) links to each other with water sample meter (12), water sample meter (12) lower end is connected with the solenoid valve that is used for the water sample emptying (9), solenoid valve (9) bottom connects mixing valve (18), mixing valve (18) upper end connects reagent pipe (19) and distilled water evacuated tube, mixing valve (18) lower end by ground with clear up valve (25) and link to each other, clearing up valve outside is well heater (24), clear up valve (25) lower end and connect cooling valve (26), cooling valve (26) lower end is connected with colorimetric valve (20), and colorimetric valve (20) places in the photoelectric detection system (10), and photoelectric detection system (10) connects disposal system and calculates the COD value.
2, chemical oxygen consumption (COC) according to claim 1 (COD) online automatic monitor, it is characterized in that in the casing of described box effluent filter (4) two groups of filtering layers anyhow being arranged, sampling pump (1) connects box effluent filter (4) top by pipeline (2), overflow passage (3) is arranged at effluent filter (4) top, and constant flow pump (5) links to each other with the water delivering orifice of sewage water filtration case (4).
3, chemical oxygen consumption (COC) according to claim 1 and 2 (COD) online automatic monitor, the sample introduction pipe (6) that it is characterized in that described sampling valve 11 links to each other with valve body (34), valve body (34) side roof part has sample introduction arm (30), there is leakage fluid dram its lower end, its internal sleeve cartridge spool (31), be evenly equipped with three above fulcrums (32) on the bottom outer wall of spool (31), spool (31) top is connected by two break-in face seals with valve body (34), the valve interior wall that is positioned at the spool bottom has the arc fulcrum, there is control coil (33) outside of valve body (34), and control coil connects controller.
4, chemical oxygen consumption (COC) according to claim 1 and 2 (COD) online automatic monitor, liquid-feeding tube (35) the thread connection measuring room (37) that it is characterized in that described water sample meter (12), measuring room (37) one sides have run-down pipe (36), the adjustable pipe bottom surface, bottom of liquid-feeding tube (35) is positioned at measuring room run-down pipe (36) below the bottom line, and interface is arranged at measuring room (37) bottom.
5, chemical oxygen consumption (COC) according to claim 1 and 2 (COD) online automatic monitor, liquid feeding bucket (42) is arranged at valve body (38) top that it is characterized in that described mixing valve (18), its sidepiece has run-down pipe, leakage fluid dram is arranged at the bottom, valve inner is with spool (40), be evenly equipped with three above fulcrums on the external wall of upper portion of spool (40), spool (40) bottom is connected by two break-in face seals with valve body (38), spool (40) is the glass capsulation iron core, there is control coil (39) outside of valve body, and control coil connects controller.
6, chemical oxygen consumption (COC) according to claim 1 (COD) online automatic monitor, there is cooling jacket (27) person in charge outside that it is characterized in that above-mentioned cooling valve (26), its water inlet pipe links to each other with water tank (29) by ebullator (28), and its drainpipe directly links to each other with water tank (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204164 CN2466640Y (en) | 2001-02-27 | 2001-02-27 | Automatic chemical oxygen demand (COD) in-situ monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01204164 CN2466640Y (en) | 2001-02-27 | 2001-02-27 | Automatic chemical oxygen demand (COD) in-situ monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2466640Y true CN2466640Y (en) | 2001-12-19 |
Family
ID=33625452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01204164 Expired - Fee Related CN2466640Y (en) | 2001-02-27 | 2001-02-27 | Automatic chemical oxygen demand (COD) in-situ monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2466640Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854054A (en) * | 2012-09-19 | 2013-01-02 | 江苏大学 | Quick sample injection and metering digestion reaction device for detecting COD (chemical oxygen demand) |
| CN104914209A (en) * | 2015-06-25 | 2015-09-16 | 无锡点创科技有限公司 | Laboratory COD automatic analysis robot |
| CN107907644A (en) * | 2017-11-24 | 2018-04-13 | 江苏海德环境科技有限公司 | With anti-oxidation and exclusion air interference COD water samples metering device and method |
-
2001
- 2001-02-27 CN CN 01204164 patent/CN2466640Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854054A (en) * | 2012-09-19 | 2013-01-02 | 江苏大学 | Quick sample injection and metering digestion reaction device for detecting COD (chemical oxygen demand) |
| CN104914209A (en) * | 2015-06-25 | 2015-09-16 | 无锡点创科技有限公司 | Laboratory COD automatic analysis robot |
| CN107907644A (en) * | 2017-11-24 | 2018-04-13 | 江苏海德环境科技有限公司 | With anti-oxidation and exclusion air interference COD water samples metering device and method |
| CN107907644B (en) * | 2017-11-24 | 2024-03-22 | 江苏海德环境科技有限公司 | COD water sample metering device and method with functions of preventing oxidization and eliminating air interference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |