CN102103073B - Device for monitoring content of organic matters in circulating water in anti-explosion area on line - Google Patents
Device for monitoring content of organic matters in circulating water in anti-explosion area on line Download PDFInfo
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- CN102103073B CN102103073B CN2011100398602A CN201110039860A CN102103073B CN 102103073 B CN102103073 B CN 102103073B CN 2011100398602 A CN2011100398602 A CN 2011100398602A CN 201110039860 A CN201110039860 A CN 201110039860A CN 102103073 B CN102103073 B CN 102103073B
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- centrifugal pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000004880 explosion Methods 0.000 title abstract 3
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 238000000870 ultraviolet spectroscopy Methods 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 3
- 150000001298 alcohols Chemical class 0.000 abstract description 2
- 150000002170 ethers Chemical class 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 238000012806 monitoring device Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003333 near-infrared imaging Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The invention relates to a device for monitoring the content of organic matters in circulating water in an anti-explosion area on line. The device sequentially comprises an inlet valve, a pressure reducing valve, a monitor inlet valve, a monitor, a centrifugal pump, a check valve and an outlet valve, wherein the parts and a circulating pipeline form a monitoring loop; the monitor is arranged in an anti-explosion box; a sampling valve is arranged on a pipeline between the monitor inlet valve and the monitor; a bypass pipeline with a regulating valve is arranged at the front end of the monitor inlet valve and the front end of a centrifugal pump inlet; a pressure meter is arranged on a pipeline between the outlet valve and the check valve; and a safety valve is arranged on a pipeline between the centrifugal pump inlet and a monitor outlet. The device can monitor hydrocarbon media with more than six carbon atoms, hydrocarbons and benzene rings with unsaturated bonds, alcohols and ethers with hydrogen bonds, and the like in a circulating water system on line. The whole device is safe, has a wide monitor application range, is easy to remotely control, and is particularly suitable for monitoring the water quality of a circulating water pipeline in a petrochemical enterprise on line and timely determining the leakage of a water cooler.
Description
Technical field
The present invention relates to the equipment of organic content on-line monitoring in a kind of recirculated water, belong to organic content field of measuring technique in the recirculated water in the explosion-proof district of petroleum chemical enterprise.
Background technology
Because the water cooler quantity of petroleum chemical enterprise is a lot, to being in great demand of recirculated water.Recirculated water need return water factory and handle in the cycle heat exchange process, discharge with heat that will be unnecessary, and interpolation reagent to be to control its turbidity, ion concentration and COD, and the recirculated water after the processing returns heat interchanger.In cyclic process, there are a large amount of connection water factories and the pipeline of water cooler, that these pipelines mostly are in is outdoor, have certain pressure, and is in inflammable, explosive zone.
Owing to reasons such as device is aging, repair quality, bad seals, operation fluctuations, the leakage of water cooler is ubiquitous problem in the domestic petroleum chemical enterprise.The organism of water cooler leaks the problem that will cause following aspect: (1) increases water factory's wastewater treatment expense; If find untimely then need replace a large amount of fresh waters and add medicaments such as a large amount of anticorrosion, sterilizations; Circulation needed one month even some months could settle out gradually, seriously influenced normal production work; (2) bring serious potential safety hazard to production, will cause enormous economic loss as security incident takes place.
So take accurate and real-time means that recirculated water is monitored, can avoid petroleum chemical enterprise's circulation organism to leak the economic loss that causes.But for the system that comprises up to a hundred water coolers; Organic concentration in water factory's circulating water intake, outlet off-line monitoring water only at present; So after leaking generation; Be difficult to discover fast the generation of leakage accident, cause serious pollution and waste, and the position by the definite leakage of platform investigation of taking subsequently also needs great amount of manpower and time.So under the situation that does not influence the recirculated water operate as normal; In different circulation pipelines, add on-Line Monitor Device, can confirm the generation of leakage accident fast, and the scope of dwindling leak source greatly; Reduce the workload and the time of leakage detection, have important meaning.
Can realize that at present organism on-line analysis method mainly contains ultraviolet spectrophotometry, Ultraluminescence AAS, near infrared method, laser fiber technology etc. in the water.But because the singularity of petroleum chemical enterprise's circulating water line; Need under outdoor, explosion-proof condition, work; Pipeline itself has pressure again, and the application of the equipment of on-line monitorings such as existing ultraviolet spectrophotometer has pressure limitation, and equipment itself can not be explosion-proof; Can not be applied to low temperature environment, make these equipment can not directly apply to the recirculated water monitoring of petroleum chemical enterprise.
Summary of the invention
The purpose of this invention is to provide a kind of on-Line Monitor Device that is used for recirculated water organic content in the explosion-proof district; This device top hole pressure of can be in inflammable, explosive zone circulating water line being sampled is controlled in the monitoring equipment scope of application, and then solves the quick leakage detection problem of leakage of water cooler.This device can be with having the on-line monitoring that monitoring equipment is applied to petroleum chemical enterprise's circulating water line water quality now,
Technical scheme of the present invention is following:
A kind of on-Line Monitor Device that is used for recirculated water organic content in the explosion-proof district is characterized in that: this device comprises admission valve, reduction valve, monitor admission valve, monitor, centrifugal pump, non-return valve and outlet valve successively; Said admission valve, reduction valve, monitor admission valve, monitor, centrifugal pump, non-return valve and outlet valve and circulation line constitute monitoring circuit; Described monitor is positioned in the explosion-proof tank; On the pipeline between monitor admission valve and the monitor, sampling valve is installed, and is provided with a bypass line that has variable valve at monitor admission valve front end and centrifugal pump inlet front end; Setting pressure table on the pipeline between outlet valve and the non-return valve; On the pipeline between centrifugal pump inlet and the monitor outlet, safety valve is installed.
The combination of one or more in described monitor employing ultraviolet spectrometry monitor, Ultraluminescence monitor, laser fiber monitor and the near infrared online monitor.On the pipeline of monitoring circuit, be provided with electric tracing and insulation.
The present invention compares with the conventional online monitoring device; Have the following advantages and the high-lighting effect: 1. device adopts reduction valve and centrifugal pump; Can reduce the pressure in the sampling system; On-line monitoring device itself that can is not withstand voltage is used for the on-line monitoring of recirculating cooling water system organic content, satisfies the requirement of recirculated water zero-emission simultaneously.2. adopt explosion-proof tank to place monitor, can in inflammable, explosive zone, work, be suitable for the on-line monitoring of petroleum chemical enterprise's circulating water quality; 3. this device carries electric tracing and heat-insulation layer, can avoid outdoor cryogenic freezing in winter, guarantees the normal operation of system; The device sampling system comprises reduction valve, non-return valve and safety valve, can guarantee that the power supply of sampling system can the generation systems internal pressure not rise sharply when promptly stopping yet, and causes the damage of instrument, is easy to operated from a distance and maintenance on the spot.
Whole device safely, be easy to Long-distance Control, it is wide to be suitable for the monitoring instrument scope, is specially adapted to the on-line monitoring of petroleum chemical enterprise's circulating water line water quality and in time judges the leakage of water cooler.
Description of drawings
Fig. 1 is the structural principle synoptic diagram of apparatus of the present invention.
Among the figure: the 1-admission valve; The 2-reduction valve; The 3-sampling valve; 4-monitor admission valve; The 5-monitor; The 6-variable valve; The 7-safety valve; The 8-centrifugal pump; The 9-non-return valve; The 10-tensimeter; 11-outlet valve 11; The 12-explosion-proof tank; The 13-electric tracing; The 14-heat-insulation layer; The 15-circulation line.
Embodiment
Below in conjunction with Fig. 1 the concrete structure of the present invention and the course of work are done further explanation.
Fig. 1 is the structural principle synoptic diagram of apparatus of the present invention; This device comprises admission valve 1, reduction valve 2, monitor admission valve 4, monitor 5, centrifugal pump 8, non-return valve 9 and outlet valve 11 successively, and said admission valve, reduction valve, monitor admission valve, monitor, centrifugal pump, non-return valve and outlet valve and circulation line 15 constitute monitoring circuit; Described monitor 5 is positioned in the explosion-proof tank 12; Sampling valve 3 is installed on the pipeline between monitor admission valve and the monitor, and before monitor admission valve front end and centrifugal pump inlet, is provided with a bypass line that has variable valve 6; Setting pressure table 10 on the pipeline between outlet valve and the non-return valve; On the pipeline between centrifugal pump inlet and the monitor outlet, safety valve 7 is installed, on the pipeline of monitoring circuit, is provided with electric tracing 13 and insulation 14.
The effect of each parts of the present invention is following:
1) admission valve 1, outlet valve 11: install during circulating water line is out of service, can install and adjust sampling system when closing, the adjustment aperture be regulated and control the flow of access to plant when system moved.
2) reduction valve 2: after reduction valve is installed in admission valve, the monitor intake pressure is reduced to below the 0.1Mpa, prevent that the sampling system line pressure from exceeding the suitable pressure limit of monitor.
3) sampling valve 3: sampling valve is installed on the pipeline between monitor admission valve and the monitor, closes at ordinary times, and off-line when sampling opens, the emptying when being used for detection and the shutdown system of off-line monitoring device.
4) monitor admission valve 4 and variable valve 6: sampling system also is provided with a by-pass pipe road except that the monitor pipeline, and variable valve 6 and monitor admission valve 4 on the adjustment bypass line can be according to discharge and the pressure in the demands of different adjustment monitor of monitor.
5) explosion-proof tank 12: the monitor that itself is not explosion-proof is placed wherein, and explosion-proof tank is provided with power lead, signal wire, the explosion-proof interface of heating tape, also is provided with recirculated water turnover pipe interface; In explosion-proof tank, the monitored device of organic concentration detects, and the output analog signals, is sent to the monitoring station.If long transmission distance, the current signal decay is more serious, and signal amplifier is installed in explosion-proof tank.
6) monitor 5: monitor can adopt one or more the combination in ultraviolet spectrometry monitor, Ultraluminescence monitor, laser fiber monitor and the near infrared online monitor, and the laser fiber monitor is used for the on-line monitoring of water route greater than the hydrocarbon medium content of C6; The ultraviolet spectrometry monitor is used for the water route and contains the straight chain hydrocarbon of unsaturated link and the on-line monitoring of phenyl ring type organic content; The Ultraluminescence monitor is used for the on-line monitoring of water route phenyl ring type organic; The near infrared monitor is used for the water route and contains the strong organic on-line monitoring of alcohols, ethers of hydrogen.
7) safety valve 7: safety valve is installed on the pipeline between centrifugal pump inlet and the monitor outlet, the monitor exit, and relieving pressure is set to 0.1Mpa, prevents that the water hammer that produces when pump promptly stops from working the mischief to system.
8) centrifugal pump 8: select low discharge, high-head centrifugal pump for use according to line pressure; Sample water is back in the circulating water line; This centrifugal pump pump is furnished with and controls post on the spot, can adopt long-range, dual mode is controlled the operation of centrifugal pump on the spot, when scene or control system go wrong; Can need not to adjust valve termination of pumping immediately, short-term does not have influence to sampling system.
9) non-return valve 9: after being installed in centrifugal pump, when centrifugal pump cuts out, prevent that recirculated water from flowing backward to system from the sampling system export pipeline.
10) tensimeter 10: be installed on the pipeline between outlet valve and the non-return valve, the top hole pressure data of the pressure and the centrifugal pump of circulating water line are provided, for the type selecting and the running status of centrifugal pump provides reference, and judge the flow of sampling system indirectly.
11) electric tracing 13: comprise explosion-proof electric tracing and heating tape, explosion-proof electrically heat tracing power supply is arranged in the explosion-proof tank, and heating tape is wrapped on sampling system pipeline and the valve, and it is freezing that the prevention winter temperature water route occurs when very low, damages instrument, influences the accuracy of reading.
12) heat-insulation layer 14: heat-insulation layer is wrapped on sampling system pipeline and the valve, and it is freezing that the prevention winter temperature water route occurs when very low.
Embodiment:
Embodiment 1: certain styrene plant circulating water line pressure is 0.2Mpa, possibly have lubricating oil in the water pipe when leakage accident takes place, and at circulating water line this device is set; One unjacketed optical fiber on-line monitoring device (output signal 4～20mA) is installed; Select centrifugal pump outlet lift 30m for use, rated current 2.5A, the reduction valve top hole pressure is less than 0.04Mpa; Discharge of safety valve pressure is 0.06Mpa, electric tracing rated current 2A.
The result who monitored 90 days shows that the on-Line Monitor Device operation is normal, and sampling system does not have leakage when stopping, and opens the back operate as normal, and the reading of fiber-optic monitoring device is stabilized in about 30ppm always, explains in this pipeline to have lubricating oil in the water, has leakage accident to take place.
Embodiment 2: certain styrene plant circulating water line pressure is 0.4Mpa, possibly have styrene monomer in the water pipe when leakage accident takes place, and at circulating water line this device is set; One cover Ultraluminescence on-line monitoring device (output signal 4～20mA) is installed; Select multistage centrifugal pump discharge lift 50m for use, rated current 2.7A, the reduction valve top hole pressure is less than 0.06Mpa; Discharge of safety valve pressure is 0.1Mpa, electric tracing rated current 2A.
The result who monitored 60 days shows that on-Line Monitor Device is in proper working order, and the stable reading of Ultraluminescence monitor levels off to zero, explains in this pipeline and do not have styrene monomer in the water that no leakage accident takes place.
Claims (3)
1. on-Line Monitor Device that is used for recirculated water organic content in the explosion-proof district, it is characterized in that: this device comprises admission valve (1), reduction valve (2), monitor admission valve (4), monitor (5), centrifugal pump (8), non-return valve (9) and outlet valve (11) successively; Said admission valve, reduction valve, monitor admission valve, monitor, centrifugal pump, non-return valve and outlet valve and circulation line (15) constitute monitoring circuit; Described monitor (5) is positioned in the explosion-proof tank (12); Sampling valve (3) is installed on the pipeline between monitor admission valve and the monitor, and is provided with a bypass line that has variable valve (6) at monitor admission valve front end and centrifugal pump inlet front end; Setting pressure table (10) on the pipeline between outlet valve and the non-return valve; On the pipeline between centrifugal pump inlet and the monitor outlet, safety valve (7) is installed.
2. according to the described a kind of on-Line Monitor Device that is used for recirculated water organic content in the explosion-proof district of claim 1, it is characterized in that: the combination of one or more in described monitor employing ultraviolet spectrometry monitor, Ultraluminescence monitor, laser fiber monitor and the near infrared monitor.
3. according to the described a kind of on-Line Monitor Device that is used for recirculated water organic content in the explosion-proof district of claim 1, it is characterized in that: on the pipeline of monitoring circuit, be provided with electric tracing (13) and heat-insulation layer (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100398602A CN102103073B (en) | 2011-02-17 | 2011-02-17 | Device for monitoring content of organic matters in circulating water in anti-explosion area on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100398602A CN102103073B (en) | 2011-02-17 | 2011-02-17 | Device for monitoring content of organic matters in circulating water in anti-explosion area on line |
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| Publication Number | Publication Date |
|---|---|
| CN102103073A CN102103073A (en) | 2011-06-22 |
| CN102103073B true CN102103073B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100398602A Expired - Fee Related CN102103073B (en) | 2011-02-17 | 2011-02-17 | Device for monitoring content of organic matters in circulating water in anti-explosion area on line |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234580A (en) * | 2013-04-08 | 2013-08-07 | 马锡林 | Abnormal wastage warning device for brine ice cooling system |
| CN105628353A (en) * | 2014-11-04 | 2016-06-01 | 上海上汽马瑞利动力总成有限公司 | Flange burst pressure test structure and test method |
| CN109283090A (en) * | 2018-10-23 | 2019-01-29 | 河南省日立信股份有限公司 | Insolubles content on-line measuring device and method in circulation system water |
| CN112781794B (en) * | 2019-11-06 | 2023-09-15 | 中国石油化工股份有限公司 | Online monitoring method and system for leakage of amine liquid water cooler |
| CN111006825A (en) * | 2019-12-10 | 2020-04-14 | 西安理工大学 | Sensor system based on microbial fuel cell, optimization method and application |
| CN111351616A (en) * | 2020-03-20 | 2020-06-30 | 西安理工大学 | Sensor device for monitoring organic matter leakage of industrial circulating water system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958941A (en) * | 1975-02-06 | 1976-05-25 | Sybron Corporation | Apparatus for measuring content of organic carbon |
| EP0498888A1 (en) * | 1989-11-04 | 1992-08-19 | Nihon Millipore Kogyo Kabushiki Kaisha | Method of measuring total quantity of organic substances in ultrapure water and ultrapure water treating system utilizing said method in preparation of ultrapure water |
| CN201583437U (en) * | 2009-09-25 | 2010-09-15 | 上海科绿特环保科技有限公司 | Test climatic chamber of release amount of volatile organic compound |
| CN201974377U (en) * | 2011-02-17 | 2011-09-14 | 清华大学 | Online monitoring device for contents of organic matters in circulating water in explosion proof areas |
-
2011
- 2011-02-17 CN CN2011100398602A patent/CN102103073B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958941A (en) * | 1975-02-06 | 1976-05-25 | Sybron Corporation | Apparatus for measuring content of organic carbon |
| EP0498888A1 (en) * | 1989-11-04 | 1992-08-19 | Nihon Millipore Kogyo Kabushiki Kaisha | Method of measuring total quantity of organic substances in ultrapure water and ultrapure water treating system utilizing said method in preparation of ultrapure water |
| CN201583437U (en) * | 2009-09-25 | 2010-09-15 | 上海科绿特环保科技有限公司 | Test climatic chamber of release amount of volatile organic compound |
| CN201974377U (en) * | 2011-02-17 | 2011-09-14 | 清华大学 | Online monitoring device for contents of organic matters in circulating water in explosion proof areas |
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