CN105929125A - Itinerant detector for filter - Google Patents

Itinerant detector for filter Download PDF

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Publication number
CN105929125A
CN105929125A CN201610426326.XA CN201610426326A CN105929125A CN 105929125 A CN105929125 A CN 105929125A CN 201610426326 A CN201610426326 A CN 201610426326A CN 105929125 A CN105929125 A CN 105929125A
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CN
China
Prior art keywords
resistance
connects
sampling
amplifier
circuit
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Application number
CN201610426326.XA
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Chinese (zh)
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CN105929125B (en
Inventor
张波
刘庆广
鲁海滨
Original Assignee
哈尔滨供水集团有限责任公司
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Priority to CN201610426326.XA priority Critical patent/CN105929125B/en
Publication of CN105929125A publication Critical patent/CN105929125A/en
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Publication of CN105929125B publication Critical patent/CN105929125B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18Water

Abstract

Disclosed is an itinerant detector for a filter. A sampling box comprises an outer sampling box body, wire arrangement boxes, wires, electric sampling valves and sampling bottles. The upper end of every sampling bottle is connected with a water outlet pipe, the lower end of every sampling bottle is connected with a water inlet pipe, a sampling bottle switching valve is connected to each of the water outlet pipes and the water inlet pipes, the water inlet pipes are connected with the filter, a turbidity sensor is installed in every sampling bottle, the wire of every turbidity sensor passes through the upper end of the corresponding sampling bottle, the electric sampling valve is connected to every water outlet pipe and is disposed above the corresponding sampling bottle switching valve, the wires of the turbidity sensors converge in the wire arrangement boxes, and the wire arrangement boxes, the sampling bottle switching valves and the sampling bottles are disposed in the outer sampling box body.

Description

Filter tank logging
Technical field
The present invention relates to a kind of filter tank logging.
Background technology
One-storey house water treatment plant of Harbin City is indoor urban district, large-scale cold ground self water supply water factory, and security and reliability requirement that in field of the same trade, production system and equipment are run by Harbin one-storey house water treatment plant are higher.For now, the continuous service year of water factory's internal unit is long, and a lot of equipment enter into the operation fatigue phase from steady operation period, in addition by northeast winter low temperature such environmental effects, the operating condition of equipment component is the most severe, the aging and abrasion of this equipment more aggravated.The most aging along with equipment, the operating condition of equipment and process-monitor need further to be optimized the smooth sequential that daily production just can be effectively ensured.The potential risk that just there is this kind of situation one-storey house water treatment plant to current production technology and production equipment deep-cuts, undermining, completes two autonomous innovations work, significantly optimizes equipment working condition, and the equipment that improves runs and the reliability of daily production.
Present filter tank logging is each filter tank of people's handheld machine and patrols and examines, and owing to people can only be sampled on limit, filter tank, the evenness of sample can be affected, and can easily not extract sample efficiently, and owing to having the time difference when each filter tank is patrolled and examined, make each filter tank detection time difference cause the incomplete accuracy of sample, testing result is impacted, affects total quality.
Summary of the invention
It is an object of the invention to provide a kind of filter tank logging, help to solve the problems referred to above, can close on the sampling of different filter tanks, sample randomness is higher, will not produce the time difference during detection, can be according to surveyed turbidity random monitoring filter tank operating mode.
Above-mentioned purpose is realized by following technical scheme:
A kind of filter tank logging, its composition includes: sampling cabinet, described sampling cabinet includes sampling outer case 1, winding box 2, winding displacement, electronic sampling valve 3 and sampling bottle 4, the upper end of described sampling bottle 4 connects outlet pipe 5, the lower end of described sampling bottle 4 connects water inlet pipe 6, described outlet pipe 5 is connected sampling bottle switch valve 7 respectively with on water inlet pipe 6, described water inlet pipe 6 connects filter tank, turbidity transducer is loaded in described sampling bottle 4, the upper end of described sampling bottle 4 is through the electric wire 9 of turbidity transducer, electronic sampling valve 3 is connected on described outlet pipe 5, described electronic sampling valve 3 is above sampling bottle switch valve 7, the electric wire of described turbidity transducer collects in winding box 2, described winding box 2, sampling bottle switch valve 7, electronic sampling valve 3 all samples in outer case 1 with sampling bottle 4.
nullDescribed filter tank logging,Described sampling cabinet connects detection case by winding displacement,Described detection case includes detecting outer case 9、The fuselage 10 of Turbidity measurement instrument、Soft-touch control 11 detects switch 12 with detector,The fuselage 10 of described Turbidity measurement instrument coordinates turbidity transducer to use,The inner upper of described detection outer case 9 arranges data wire wiring casing 13,The fuselage 10 of described Turbidity measurement instrument is arranged on the upper left-hand of detection outer case 9,The output line 14 of described Turbidity measurement instrument is concluded in data wire wiring casing 13,The upper right of described detection outer case 9 arranges soft-touch control 11,The bottom of described detection outer case 9 connects detector detection switch 12,Described detector detection switch 12 and fuselage 10 one_to_one corresponding of Turbidity measurement instrument,Described detection outer case 9 connects the outer case lid 15 of detection by rotating shaft,On the outer case lid 15 of described detection, screen 16 is set,The right side of described screen 16 arranges button 17,The lower end of described screen 16 arranges filter tank display lamp 18,The outer case lid of described detection 15 obtains left side and is provided with lock 19.
nullDescribed filter tank logging,Circuit board is included in the fuselage 10 of described Turbidity measurement instrument,Described circuit board includes turbidity transducer,The signal of tested filter tank water in described turbidity transducer reception sampling bottle,Signal is passed to i-v change-over circuit by described turbidity transducer,Signal is passed to amplifying circuit by described i-v change-over circuit,Signal is passed to filter circuit by described amplifying circuit,Signal is passed to analog to digital conversion circuit by described filter circuit,Signal is passed to single-chip microcomputer by described analog to digital conversion circuit,Described single-chip microcomputer and RS232 interface bi-directional signal,Described RS232 interface and host computer bi-directional signal,Described single-chip microcomputer receives the signal of real-time clock and keyboard,Signal is passed to photoelectric isolating circuit by described single-chip microcomputer,Signal is passed to D/A converting circuit by described photoelectric isolating circuit,Signal is passed to modulate circuit by described D/A converting circuit,Signal is passed to output by described modulate circuit,Described output linkage record machine.
nullDescribed filter tank logging,Described turbidity transducer includes pre-amplification circuit,Described pre-amplification circuit includes the interface J1 of turbidity transducer,No. 1 pin of the interface J1 of described turbidity transducer connects one end of resistance R1,One end of other end parallel resistance R2 of described resistance R1 and one end of electric capacity C1,No. 2 pins of the interface J1 of the other end parallel connection turbidity transducer of described electric capacity C1 and the output of amplifier A1,The other end of described resistance R2 connects the negative input end of amplifier A1,The positive input terminal of described amplifier A1 connects the 3rd end of slide rheostat R7,The VCC end of described amplifier A1 connects one end of resistance R3,One end of other end parallel resistance R8 of described resistance R3、One end of diode D1、3rd end of diode D1 and one end of resistance R11,The other end of described resistance R8 connects one end of slide rheostat R7,The other end of described slide rheostat R7 connects one end of resistance R9,The other end ground connection of described diode D1,The other end of described resistance R11 connects one end of resistance R12,The other end of described resistance R12 connects the other end of resistance R9;The negative input end of three-terminal link amplifier A3 of described resistance R12;
One end of No. 3 pins in parallel resistance R4 of the interface J1 of described turbidity transducer, one end of electric capacity C2 and the negative input end of amplifier A2, the positive input terminal ground connection of described amplifier A2, the other end of output parallel resistance R4 of described amplifier A2, the other end of electric capacity C2 and one end of resistance R13, the other end of described resistance R13 connects the positive input terminal of amplifier A3, one end of output parallel resistance R14 of described connection amplifier A3 and one end of slide rheostat R10, 3rd end of the other end parallel connection slide rheostat R10 of described slide rheostat R10 and one end of resistance R6, the other end of described resistance R6 connects one end of resistance R5, the other end ground connection of described resistance R5;
One end of the other end shunt capacitance C3 of described resistance R14 and one end of resistance R15, one end of the other end shunt capacitance C4 of described resistance R15 and the positive input terminal of amplifier A4, the other end ground connection of described electric capacity C4, the negative input end of other end parallel connection amplifier A4 of described electric capacity C3 and the output of amplifier A4.
Beneficial effect:
1. the sampling bottle switch valve of the present invention is two, is separately mounted on outlet pipe and water inlet pipe, and two sampling bottle switch valves all coordinate sampling bottle to use, and helps the turbidity transducer work in sampling bottle, is adjusted according to different detection demands.
2. the electronic sampling valve of the present invention coordinates sampling bottle to use, and installs on each sampling bottle, controls the sample extraction time in each filter tank according to different detection modes, extracts capacity, with extraction speed.
3. the output line of the Turbidity measurement instrument of the present invention is the most conveniently checked the screen of Turbidity measurement instrument but also is conveniently arranged and change with maintenance in all concluding data wire wiring casing 13.
4. the filter tank display lamp of the present invention coordinates sampling cabinet to use with service chamber, helps staff conveniently to understand detection state.
5. the standard and modular design concept of the present invention does product, highly integrated, the reserved and PLC remote linkage of factory, rolls into a ball large-scale production lay the foundation for two workshops or even complete or collected works in the future, be equipped with recording instrument without paper, instrument can be coordinated to record various technological parameter.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of sampling cabinet of the present invention.
Accompanying drawing 2 is the structural representation of detection case of the present invention.
Accompanying drawing 3 is the structural representation that the present invention detects outer case lid.
Accompanying drawing 4 is the electric flow chart of logging of the present invention.
Accompanying drawing 5 is the turbidity transducer pre-amplification circuit of the present invention.
Accompanying drawing 6 is the electronic sampling valve schematic diagram of the present invention.
Accompanying drawing 7 is the elementary diagram of detection case of the present invention.
Detailed description of the invention
Embodiment 1
A kind of filter tank logging, its composition includes: sampling cabinet, described sampling cabinet includes sampling outer case 1, winding box 2, winding displacement, electronic sampling valve 3 and sampling bottle 4, the upper end of described sampling bottle 4 connects outlet pipe 5, the lower end of described sampling bottle 4 connects water inlet pipe 6, described outlet pipe 5 is connected sampling bottle switch valve 7 respectively with on water inlet pipe 6, described water inlet pipe 6 connects filter tank, turbidity transducer is loaded in described sampling bottle 4, the upper end of described sampling bottle 4 is through the electric wire 9 of turbidity transducer, electronic sampling valve 3 is connected on described outlet pipe 5, described electronic sampling valve 3 is above sampling bottle switch valve 7, the electric wire of described turbidity transducer collects in winding box 2, described winding box 2, sampling bottle switch valve 7, electronic sampling valve 3 all samples in outer case 1 with sampling bottle 4.
Embodiment 2
nullFilter tank logging described in embodiment 1,Described sampling cabinet connects detection case by winding displacement,Described detection case includes detecting outer case 9、The fuselage 10 of Turbidity measurement instrument、Soft-touch control 11 detects switch 12 with detector,The fuselage 10 of described Turbidity measurement instrument coordinates turbidity transducer to use,The inner upper of described detection outer case 9 arranges data wire wiring casing 13,The fuselage 10 of described Turbidity measurement instrument is arranged on the upper left-hand of detection outer case 9,The output line 14 of described Turbidity measurement instrument is concluded in data wire wiring casing 13,The upper right of described detection outer case 9 arranges soft-touch control 11,The bottom of described detection outer case 9 connects detector detection switch 12,Described detector detection switch 12 and fuselage 10 one_to_one corresponding of Turbidity measurement instrument,Described detection outer case 9 connects the outer case lid 15 of detection by rotating shaft,On the outer case lid 15 of described detection, screen 16 is set,The right side of described screen 16 arranges button 17,The lower end of described screen 16 arranges filter tank display lamp 18,The outer case lid of described detection 15 obtains left side and is provided with lock 19.The bottom of described detection outer case 9 has cabling port 20, through data wire and electric wire in described cabling port 20.
Embodiment 3
nullFilter tank logging described in embodiment 1,Circuit board is included in the fuselage 10 of described Turbidity measurement instrument,Described circuit board includes turbidity transducer,The signal of tested filter tank water in described turbidity transducer reception sampling bottle,Signal is passed to i-v change-over circuit by described turbidity transducer,Signal is passed to amplifying circuit by described i-v change-over circuit,Signal is passed to filter circuit by described amplifying circuit,Signal is passed to analog to digital conversion circuit by described filter circuit,Signal is passed to single-chip microcomputer by described analog to digital conversion circuit,Described single-chip microcomputer and RS232 interface bi-directional signal,Described RS232 interface and host computer bi-directional signal,Described single-chip microcomputer receives the signal of real-time clock and keyboard,Signal is passed to photoelectric isolating circuit by described single-chip microcomputer,Signal is passed to D/A converting circuit by described photoelectric isolating circuit,Signal is passed to modulate circuit by described D/A converting circuit,Signal is passed to output by described modulate circuit,Described output linkage record machine.
Embodiment 4
nullFilter tank logging described in embodiment 3,Described turbidity transducer includes pre-amplification circuit,Described pre-amplification circuit includes the interface J1 of turbidity transducer,No. 1 pin of the interface J1 of described turbidity transducer connects one end of resistance R1,One end of other end parallel resistance R2 of described resistance R1 and one end of electric capacity C1,No. 2 pins of the interface J1 of the other end parallel connection turbidity transducer of described electric capacity C1 and the output of amplifier A1,The other end of described resistance R2 connects the negative input end of amplifier A1,The positive input terminal of described amplifier A1 connects the 3rd end of slide rheostat R7,The VCC end of described amplifier A1 connects one end of resistance R3,One end of other end parallel resistance R8 of described resistance R3、One end of diode D1、3rd end of diode D1 and one end of resistance R11,The other end of described resistance R8 connects one end of slide rheostat R7,The other end of described slide rheostat R7 connects one end of resistance R9,The other end ground connection of described diode D1,The other end of described resistance R11 connects one end of resistance R12,The other end of described resistance R12 connects the other end of resistance R9;The negative input end of three-terminal link amplifier A3 of described resistance R12;
One end of No. 3 pins in parallel resistance R4 of the interface J1 of described turbidity transducer, one end of electric capacity C2 and the negative input end of amplifier A2, the positive input terminal ground connection of described amplifier A2, the other end of output parallel resistance R4 of described amplifier A2, the other end of electric capacity C2 and one end of resistance R13, the other end of described resistance R13 connects the positive input terminal of amplifier A3, one end of output parallel resistance R14 of described connection amplifier A3 and one end of slide rheostat R10, 3rd end of the other end parallel connection slide rheostat R10 of described slide rheostat R10 and one end of resistance R6, the other end of described resistance R6 connects one end of resistance R5, the other end ground connection of described resistance R5;
One end of the other end shunt capacitance C3 of described resistance R14 and one end of resistance R15, one end of the other end shunt capacitance C4 of described resistance R15 and the positive input terminal of amplifier A4, the other end ground connection of described electric capacity C4, the negative input end of other end parallel connection amplifier A4 of described electric capacity C3 and the output of amplifier A4.
Embodiment 5
Filter tank logging described in embodiment 1, the circuit diagram of described electronic sampling valve includes actuator, described actuator includes stand-by power supply, control circuit and motor, described stand-by power supply connects control circuit, described control circuit connects motor, described control circuit is also connected with switching SW, described switch SW and connects actuator internal controller IS.
Embodiment 6
nullFilter tank logging described in embodiment 1,Turbidity measurement instrument is loaded in described detection case,One end of No. 1 pins in parallel single-pole double-throw switch (SPDT) K2 of described turbidity check meter KZ1 and No. 4 pins of turbidity check meter KZ1,No. 5 pins of described turbidity check meter KZ1 connect one end of relay J 1-1,One end of No. 6 pin J1-2 of described turbidity check meter KZ1,No. 7 pins of described turbidity check meter KZ1 connect one end of relay J 1-3,No. 8 pins of described turbidity check meter KZ1 connect one end of relay J 1-4,No. 9 pins of described turbidity check meter KZ1 connect one end of relay J 1-5,No. 10 pins of described turbidity check meter KZ1 connect one end of relay J 1-6,The other end of described relay J 1-1、The other end of relay J 1-2、The other end of relay J 1-3、No. 2 pins of the turbidity check meter KZ1 described in the other end of relay J 1-4 is the most in parallel with the other end of relay J 1-5 and zero line N,One end of described single-pole double-throw switch (SPDT) K2 the 3rd end parallel connection single-pole double-throw switch (SPDT) K1 and one end of 24V power supply,The three-terminal link of described single-pole double-throw switch (SPDT) K1 crosses line L,The other end of described single-pole double-throw switch (SPDT) K2 connects No. 1 pin of soft-touch control C1 and No. 1 pin of soft-touch control C2,No. 2 pins of described soft-touch control C1 and No. 2 pins of soft-touch control C2 are all connected with zero line N,No. 3 pins of described soft-touch control C1 are by connecting zero line N after J1-1、No. 4 pins of soft-touch control C1 are by connecting zero line N after J1-2,No. 5 pins of soft-touch control C1 are by connecting zero line N after J1-3,No. 3 pins of described soft-touch control C2 are by connecting zero line N after J1-4、No. 4 pins of soft-touch control C2 are by connecting zero line N after J1-5,No. 5 pins of soft-touch control C2 are by connecting zero line N after J1-6,The other end of described 24V power supply connects zero line N,Described 24V power supply SRE J1-1 and F1,Described relay J 1-1 relay J 1-2 in parallel with F1 and F2、Relay J 1-3 and F3、Relay J 1-4 and F4、Relay J 1-5 and F5 and relay J 1-6 and F6.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, change that those skilled in the art are made in the essential scope of the present invention, retrofits, adds or replaces, and also should belong to protection scope of the present invention.

Claims (4)

  1. null1. a filter tank logging,Its composition includes: sampling cabinet,It is characterized in that: described sampling cabinet includes sampling outer case (1)、Winding box (2)、Winding displacement、Electronic sampling valve (3) and sampling bottle (4),The upper end of described sampling bottle (4) connects outlet pipe (5),The lower end of described sampling bottle (4) connects water inlet pipe (6),Described outlet pipe (5) is connected sampling bottle switch valve (7) respectively with on water inlet pipe (6),Described water inlet pipe (6) connects filter tank,Turbidity transducer is loaded in described sampling bottle (4),The upper end of described sampling bottle (4) is through the electric wire (8) of turbidity transducer,Described outlet pipe (5) is upper connects electronic sampling valve (3),Described electronic sampling valve (3) is in the top of sampling bottle switch valve (7),The electric wire of described turbidity transducer collects in winding box (2),Described winding box (2)、Sampling bottle switch valve (7)、Electronic sampling valve (3) and sampling bottle (4) all sample in outer case (1).
  2. nullFilter tank the most according to claim 1 logging,It is characterized in that: described sampling cabinet connects detection case by winding displacement,Described detection case includes detecting outer case (9)、The fuselage (10) of Turbidity measurement instrument、Soft-touch control (11) and detector detection switch (12),The fuselage (10) of described Turbidity measurement instrument coordinates turbidity transducer to use,The inner upper of described detection outer case (9) arranges data wire wiring casing (13),The fuselage (10) of described Turbidity measurement instrument is arranged on the upper left-hand of detection outer case (9),The output line (14) of described Turbidity measurement instrument is concluded in data wire wiring casing (13),The upper right of described detection outer case (9) arranges soft-touch control (11),The bottom of described detection outer case (9) connects detector detection switch (12),Described detector detection switch (12) and fuselage (10) one_to_one corresponding of Turbidity measurement instrument,Described detection outer case (9) connects the outer case lid of detection (15) by rotating shaft,On the outer case lid (15) of described detection, screen (16) is set,The right side of described screen (16) arranges button (17),The lower end of described screen (16) arranges filter tank display lamp (18),The outer case lid (15) of described detection obtains left side and is provided with lock (19).
  3. nullFilter tank the most according to claim 1 logging,It is characterized in that: in the fuselage (10) of described Turbidity measurement instrument, include circuit board,Described circuit board includes turbidity transducer,The signal of tested filter tank water in described turbidity transducer reception sampling bottle,Signal is passed to i-v change-over circuit by described turbidity transducer,Signal is passed to amplifying circuit by described i-v change-over circuit,Signal is passed to filter circuit by described amplifying circuit,Signal is passed to analog to digital conversion circuit by described filter circuit,Signal is passed to single-chip microcomputer by described analog to digital conversion circuit,Described single-chip microcomputer and RS232 interface bi-directional signal,Described RS232 interface and host computer bi-directional signal,Described single-chip microcomputer receives the signal of real-time clock and keyboard,Signal is passed to photoelectric isolating circuit by described single-chip microcomputer,Signal is passed to D/A converting circuit by described photoelectric isolating circuit,Signal is passed to modulate circuit by described D/A converting circuit,Signal is passed to output by described modulate circuit,Described output linkage record machine.
  4. nullFilter tank the most according to claim 3 logging,It is characterized in that: described turbidity transducer includes pre-amplification circuit,Described pre-amplification circuit includes the interface J1 of turbidity transducer,No. 1 pin of the interface J1 of described turbidity transducer connects one end of resistance R1,One end of other end parallel resistance R2 of described resistance R1 and one end of electric capacity C1,No. 2 pins of the interface J1 of the other end parallel connection turbidity transducer of described electric capacity C1 and the output of amplifier A1,The other end of described resistance R2 connects the negative input end of amplifier A1,The positive input terminal of described amplifier A1 connects the 3rd end of slide rheostat R7,The VCC end of described amplifier A1 connects one end of resistance R3,One end of other end parallel resistance R8 of described resistance R3、One end of diode D1、3rd end of diode D1 and one end of resistance R11,The other end of described resistance R8 connects one end of slide rheostat R7,The other end of described slide rheostat R7 connects one end of resistance R9,The other end ground connection of described diode D1,The other end of described resistance R11 connects one end of resistance R12,The other end of described resistance R12 connects the other end of resistance R9;The negative input end of three-terminal link amplifier A3 of described resistance R12;
    One end of No. 3 pins in parallel resistance R4 of the interface J1 of described turbidity transducer, one end of electric capacity C2 and the negative input end of amplifier A2, the positive input terminal ground connection of described amplifier A2, the other end of output parallel resistance R4 of described amplifier A2, the other end of electric capacity C2 and one end of resistance R13, the other end of described resistance R13 connects the positive input terminal of amplifier A3, one end of output parallel resistance R14 of described connection amplifier A3 and one end of slide rheostat R10, 3rd end of the other end parallel connection slide rheostat R10 of described slide rheostat R10 and one end of resistance R6, the other end of described resistance R6 connects one end of resistance R5, the other end ground connection of described resistance R5;
    One end of the other end shunt capacitance C3 of described resistance R14 and one end of resistance R15, one end of the other end shunt capacitance C4 of described resistance R15 and the positive input terminal of amplifier A4, the other end ground connection of described electric capacity C4, the negative input end of other end parallel connection amplifier A4 of described electric capacity C3 and the output of amplifier A4.
CN201610426326.XA 2016-06-16 2016-06-16 Filter tank logging CN105929125B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046795A (en) * 1998-07-29 2000-02-18 Noritz Corp Residual chlorine concentration measuring apparatus
CN2588372Y (en) * 2002-12-24 2003-11-26 华南理工大学 Multi-pair pipe light-changing self-compensation turbidity on-line detection alarm instrument
CN202494583U (en) * 2012-04-04 2012-10-17 颜培东 Water quality sampler
CN202599943U (en) * 2012-05-07 2012-12-12 天津市华宇膜技术有限公司 Water quality online inspection system
CN204575518U (en) * 2015-05-20 2015-08-19 重庆市科学技术研究院 A kind of two-chamber flow cell turbidimetry system
CN205209548U (en) * 2015-12-21 2016-05-04 河南龙宇信息技术有限公司 Water quality automatic monitoring device
CN205665241U (en) * 2016-06-16 2016-10-26 哈尔滨供水集团有限责任公司 Appearance is patrolled and examined in filtering pond

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000046795A (en) * 1998-07-29 2000-02-18 Noritz Corp Residual chlorine concentration measuring apparatus
CN2588372Y (en) * 2002-12-24 2003-11-26 华南理工大学 Multi-pair pipe light-changing self-compensation turbidity on-line detection alarm instrument
CN202494583U (en) * 2012-04-04 2012-10-17 颜培东 Water quality sampler
CN202599943U (en) * 2012-05-07 2012-12-12 天津市华宇膜技术有限公司 Water quality online inspection system
CN204575518U (en) * 2015-05-20 2015-08-19 重庆市科学技术研究院 A kind of two-chamber flow cell turbidimetry system
CN205209548U (en) * 2015-12-21 2016-05-04 河南龙宇信息技术有限公司 Water quality automatic monitoring device
CN205665241U (en) * 2016-06-16 2016-10-26 哈尔滨供水集团有限责任公司 Appearance is patrolled and examined in filtering pond

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