CN101812402B - Inspecting device for abnormal water quality - Google Patents
Inspecting device for abnormal water quality Download PDFInfo
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- CN101812402B CN101812402B CN 201010003233 CN201010003233A CN101812402B CN 101812402 B CN101812402 B CN 101812402B CN 201010003233 CN201010003233 CN 201010003233 CN 201010003233 A CN201010003233 A CN 201010003233A CN 101812402 B CN101812402 B CN 101812402B
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Abstract
An inspecting device for abnormal water quality is provided which can prevent the death of the iron bacteria in hot environment above 30centigrade degree and the false alarm of 'abnormal water quality' caused by the death of the iron bacteria. The tested water is guided into the measuring tank (4) of the abnormal water inspecting device, of which the water temperature is kept in a set range by means of temperature adjusting unit(5). In order to keep the water temperature in a regulated range, the circulation route (24) is connected with the temperature adjusting unit (5) so as to supply temperature regulated water in a circulating mode. At the inlet pipeline (17) of tested water, there arranged a internal pipe (22a) , portion of which is selected to flow the testing water, a double-pipe heat exchanger(22) covering the external pipe(22b) around the internal pipe (22a), the temperature regulated water flows through the external pipe. The circulating water temperature regulator (23) is connected with the circulating route, heating the temperature regulated water to a set temperature whenever it is needed.
Description
Technical field
The present invention relates to a kind of abnormal water quality detecting device, remain under the state in predefined temperature range and to detect its water quality and have or not extremely will be detected water.
background technology
In the past, as usually conduct, rivers and creeks water etc. was fetched water, and this water of obtaining is supplied with as tap water by the sedimentation and filtration groove in water purification plant.If in this usually conduct, in the situation that inexpungible objectionable impurities, such as each heavy metal species or the materials such as agricultural chemicals and Environmental Hormone, sneak into rivers and creeks water, can cause being called the emergency situation that water intaking stops.
On the other hand, in lower water treatment plant, due to burst accident or do not note, sneak into various heavy metal ion or organic solvent and arsenic, cyanogen etc. in the draining of workshop or chemical plant, when these materials flow into, the active sludge microorganism in lower water treatment procedure is subject to larger obstruction, result, the activity decreased of active sludge, and the Recovery processing ability needs the plenty of time.
Therefore, in water purification plant and lower water treatment plant etc., in the situation that sneaked into above-mentioned various objectionable impurities, expectation detects rapidly and in high sensitivity the device that flows into water.
According to this expectation, in water purification plant, be installed on dissolved oxygen electrode with the poisonous substance proofing unit of fish action supervision type or by various microbial films and detect the device of poisonous substance according to the mensuration of its respiratory activity.In addition, in lower water treatment plant, at each intake, be provided with various sensors, this sensor is detected the draining of having sneaked into particular chemicals.
Wherein, be arranged at the poisonous substance proofing unit of the fish action supervision type of water purification plant, due to spended time till to fish, poisonous substance being reacted, so its detection needs the long period.And the reaction sensitivity of fish also differs larger according to the ambient condition of kind, individual difference and the raising of the fish of raising etc.And there is following problem in the poisonous substance proofing unit of fish action supervision type: this device self is larger, funds that need to be a large amount of at raising and the management aspect of fish etc.
Therefore, develop biochemical sensor formula abnormal water quality detecting device.As an example, there is the Japanese Patent Publication communique: the device shown in JP 2004-271441.This abnormal water quality detecting device is using iron-oxidizing bacterium as detector, and this iron-oxidizing bacterium can be worked under objectionable impurities or miscellaneous bacteria are difficult to the environment of lower pH value of breeding.
In this biochemical sensitive type water quality monitoring device, at first, in the air diffuser tank, by by air or by oxygen concn, being adjusted into certain gas, the water checked is carried out to air diffuser, make it become the state that dissolved oxygen concentration is saturated.The solution that the detected water supply of processing like this is contained to ferrous sulfate, and mix with detected water.This mixed solution becomes under the state of state of saturation and flows into and measure in groove at dissolved oxygen concentration.
Be provided with oxygen electrode in measuring groove, be adjusted into certain gas by air supply or by oxygen concn in advance, make detected water always become saturated dissolved oxygen concentration, make the maximum value of oxygen electrode output stable.The front end of above-mentioned oxygen electrode is equipped with microbial film, and its front end is set to be immersed in the state in the detected water of measuring in groove.Microbial film maintains iron-oxidizing bacterium (also referred to as iron bacteria), and this iron-oxidizing bacterium can utilize oxygen that ferrous sulfate is become to ferric sulfate.From the output of the electric power of this oxygen electrode by transform operation mechanism amplify, conversion, and implement the computing of regulation and judge the exception water quality of detected water.
In measuring groove, the chemical equation of the chemical transformation that the iron bacteria on the microbial film contacted with detected water carries out is as follows.
4FeSO
4+O
2+2H
2SO
4→2Fe
2(SO
4)
3+2H
2O ···(1)
In above-mentioned (1) formula, 2Fe
2(SO
4)
3ionize in water, generate Fe
3+ion.This Fe
3+ion further with water (H
2o) reaction, become ironic hydroxide Fe (OH)
3and precipitation.
In this abnormal water quality detecting device, to the dissolved oxygen electrode of installing iron-oxidizing bacterium as detector, carry the mixed solution of detected water and ferrous solution, and the electric power from oxygen electrode during to this conveying is exported and is monitored.That is, in the situation that do not sneak into objectionable impurities in detected water, due to the dissolved oxygen in detected water by the oxidation consumption of iron, so extremely low by the detected value of oxygen electrode.In contrast, in the situation that sneaked into water miscible objectionable impurities in detected water, this objectionable impurities reduces the respiratory activity of the iron-oxidizing bacterium on microbial film.As a result, because the oxygen do not consumed by iron-oxidizing bacterium sees through microbial film, so arrive the oxygen amount of oxygen electrode, increase, the current value of oxygen electrode output increases.Therefore, compare by the output current value by oxygen electrode and threshold value, and judge sneaking into of objectionable impurities.
In addition, when this biochemical sensitive type abnormal water quality detecting device continuous operation, the dirty material in detected water adheres to and is piled up on the inwall of each pipe arrangement.And the part of the ferrous sulfate in ferrous solution is oxidized to ferric sulfate, it is also piled up at leisure.These all cause the obstruction of piping system or the sensitivity decline that exception water quality detects, and become the reason that accuracy of detection is reduced.Therefore, carry out following " acid cleaning ": supply with acidic solution in the detected water ingress pipe of the mixed solution of carrying the solution that is detected water and contains ferrous sulfate, dirty material and the ferric oxide that will adhere on detected water-flowing paths such as being piled up in detected water ingress pipe or mensuration groove are removed and are discharged.
In this biochemical sensitive type abnormal water quality detecting device, when the alarm once send " water quality is abnormal ", such as implement the urgent system such as terrified countermeasure disposal in water purification plant, and take water intaking to stop or suitable interim disposal with it.But, in the situation that this " water quality is abnormal " alarm is false alarm, not only the facility that is provided with device is brought to a large amount of troubles, and, because water intaking stops, in facility, the running of equipment temporarily stops, and produces more infringement.Therefore, require the reliability of " water quality is abnormal " alarm.
Therefore, the temperature treatment of the microbial film of the iron bacteria of maintenance sensor section becomes strict.That is, the most applicable temperature of iron bacteria is near 25～32 ℃, active best near 30 ℃.
In the situation that envrionment temperature is below 25 ℃, iron bacteria becomes dormant state and the respiratory activity reduction, and the oxygen do not consumed by iron bacteria sees through microbial film, so arrive the oxygen amount of oxygen electrode, increases.As a result, the current value of oxygen electrode output increases, and therefore causes the error-detecting that water quality is abnormal, but usually first sends the temperature anomaly alarm.Now, if the envrionment temperature after reducing in the scope of 4～25 ℃, iron bacteria can be dead, if therefore make temperature treatment turn back to the most applicable temperature of iron bacteria, can restart water quality monitoring.
On the other hand, when even envrionment temperature once surpasses 32 ℃, iron bacteria is not dormancy but death, so not only occurring, above-mentioned water quality exception error detects (first sending the temperature anomaly alarm), and even envrionment temperature turns back to the most applicable temperature of iron bacteria again, this iron bacteria can not be used.Therefore, need the exchange of microbial film, after exchange, before being able to the activity of using, can not again start water quality monitoring.
Therefore, temperature treatment is maintained in the most applicable temperature range of iron bacteria, be related to the utilization of device long-term stability.Particularly, in order to use continuously iron bacteria under hot environment, make envrionment temperature to high temperature side, not change and prevent that the death of iron bacteria from being integral.
But, in the situation that biochemical sensor is arranged to water intaking field of water purification plant etc., in the buildings that separates with the Center Building thing, although some places are incomplete in indoor air-cooling system, and can rise to and approach 40 ℃ at summer temperature.Under this environment, in order to maintain the activity of iron bacteria, will below circulating water to 30 ℃, be integral, the temperature that this recirculated water is flow cell to the unit of raising iron bacteria is controlled.
The thermosistor price of recirculated water of refrigerating function that generally possesses the refrigerant evaporation formula is high, and does not possess the function that can tolerate 24 hours continuous operations.And, when the thermosistor of the refrigerant evaporation formula that high price is set, with respect to the only use in a period of summer among a year, can cause the high standard of biochemical sensor itself.
summary of the invention
The purpose of this invention is to provide a kind of abnormal water quality detecting device, even arranging during environment reaches the hot environment more than 30 ℃ of biochemical sensor, do not use the refrigerating function of refrigerant evaporation formula, can prevent the dead of iron bacteria and the false alarm of " water quality is abnormal " that cause thus yet.
Abnormal water quality detecting device of the present invention is, to be detected water imports to and measures groove and detect its water quality and have or not extremely, this mensuration groove remains in predefined temperature range by the temperature adjustment part, this abnormal water quality detecting device is characterised in that, possess: circulating path, for the said determination groove being remained in the temperature range of regulation, with the said temperature adjustment part, link and circulation supplying temperature adjustment water; Double-tube heat exchanger, inner tube using the specified length of the importing pipeline of above-mentioned detected water part as above-mentioned detected water flow, and arrange and to cover the outer tube around this inner tube and become two-tube structure, and the mode of a part and the above-mentioned circulating path that become above-mentioned circulating path with above-mentioned outer tube link, make said temperature adjust water and circulate in above-mentioned outer tube; And circulating water temperature setter, with above-mentioned circulating path, link, and have said temperature adjusted to the heating part that water is adjusted to the temperature range of afore mentioned rules, make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned double-tube heat exchanger, above-mentioned circulating water temperature setter and said determination groove.
And abnormal water quality detecting device of the present invention also can be configured to, and possesses: above-mentioned circulating path; With the circulating water temperature setter, with above-mentioned circulating path, link, and there is heating part and cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, the ingress pipe of this cooling end and above-mentioned detected water links, should be detected water as low heat, make said temperature adjustment water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned circulating water temperature setter and said determination groove.
And abnormal water quality detecting device of the present invention also can be configured to, and possesses: above-mentioned circulating path; With the circulating water temperature setter, with above-mentioned circulating path, link, and there is heating part and cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, this cooling end be linked to above-mentioned detected water different system for water service pipe, using this confession feedwater as low heat, make said temperature adjustment water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned circulating water temperature setter and said determination groove.
And abnormal water quality detecting device of the present invention also can be configured to, and possesses: above-mentioned circulating path; Double-tube heat exchanger, inner tube using the specified length of the importing pipeline of above-mentioned detected water part as above-mentioned detected water flow, and arrange and to cover the outer tube around this inner tube and become two-tube structure, and the mode of a part and this circulating path that become above-mentioned circulating path with above-mentioned outer tube link, make said temperature adjust water and circulate in above-mentioned outer tube; And circulating water temperature setter, with above-mentioned circulating path, link, and there is heating part and cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, this cooling end be linked to above-mentioned detected water different system for water service pipe, using this confession feedwater as low heat, make said temperature adjustment water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned double-tube heat exchanger, above-mentioned circulating water temperature setter and said determination groove.
And abnormal water quality detecting device of the present invention also can be configured to, and possesses: above-mentioned circulating path; The circulating water temperature setter, with above-mentioned circulating path, link, and there is heating part and cooling end, and the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, and the ingress pipe of this cooling end and above-mentioned detected water links, should be detected water as low heat; And double-tube heat exchanger, adjust the inner tube of water flow using the specified length of above-mentioned circulating path part as said temperature, and arrange and to cover the outer tube around this inner tube and become two-tube structure, above-mentioned outer tube is linked to and the circulating for feedwater for water service pipe of above-mentioned detected water different system, make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned double-tube heat exchanger, above-mentioned circulating water temperature setter and said determination groove.
According to the present invention, even in summer, tap water by will be lower than temperature or rivers and creeks water etc. are as low heat, and cooling temperature adjusting recirculated water, and heated as required, even under hot environment, also the temperature that is detected water can be remained in specialized range thus, therefore can correctly detect the error state (ERST) of detected water.
the accompanying drawing explanation
Fig. 1 means the system pie graph of the 1st embodiment of abnormal water quality detecting device of the present invention.
Fig. 2 means the Local map of the configuration example of the double-tube heat exchanger used in the 1st the same embodiment.
Fig. 3 means the system pie graph of the 2nd embodiment of abnormal water quality detecting device of the present invention.
Fig. 4 means the system pie graph of the 3rd embodiment of abnormal water quality detecting device of the present invention.
Fig. 5 means the system pie graph of the 4th embodiment of abnormal water quality detecting device of the present invention.
Fig. 6 means the system pie graph of the 5th embodiment of abnormal water quality detecting device of the present invention.
Nomenclature:
4 detect water quality N/R mensuration groove
5 temperature adjustment parts
The importing pipeline of 17 detected water
22 double-tube heat exchangers
The 22a inner tube
The 22b outer tube
23 circulating thermoswitchs
The 23a cooling end
Embodiment
Below, use accompanying drawing to describe the embodiment of abnormal water quality detecting device of the present invention in detail.
Fig. 1 means that the integral body of the present invention's the 1st embodiment forms.This abnormal detector is, remains under the state in predefined temperature range and detects its water quality and have or not extremely will be detected water, as the one example, uses the device that is provided with the structure of oxygen electrode 10 in mensuration groove 4.Front end (measuring the diagram bottom in groove 4) at this oxygen electrode 10 is equipped with microbial film 9.And this measures groove 4 and detected water ingress pipe 2 links, is imported into detected water.And this mensuration groove 4, by being arranged on its, temperature adjustment part 5 with hot-swap feature that also be known as flow cell (Off ロ mono-セ Le) on every side, is adjusted into specified temperature.This temperature adjustment part 5 links with the circulating path 24 that temperature is adjusted water, is recycled and supplies with the temperature adjustment water that is adjusted into specified temperature by circulating thermoswitch 23.
Mentioned microorganism film 9 maintains iron bacteria, and this iron bacteria can utilize oxygen and change ferrous sulfate into ferric sulfate.The leading section that oxygen electrode 10 has been set to install this microbial film 9 is immersed in the state in the detected water of measuring in groove 4.And, being connected with transform operation mechanism 11 on oxygen electrode 10, the electric power output that 11 pairs, this transform operation mechanism takes out from oxygen electrode 10 is amplified, is converted, and implements the computing of regulation, and judges as described later the exception water quality of detected water.
In this air diffuser tank 7, for imported detected water, from gas feeder 8 air supplies or oxygen concn is adjusted into to certain gas, and become the detected water that dissolved oxygen concentration is state of saturation.So dissolved oxygen concentration becomes the detected water of state of saturation, via magnetic valve 20, by detected water supply pump 6, is sent detected water ingress pipe 2, and is supplied to mensuration groove 4.
On detected water ingress pipe 2, via corresponding magnetic valve 14,15, shared liquid ingress pipe 19 and liquid supply pump 16, and be communicated with acidic solution container 12, ferrous solution container 13.Supply with from ferrous solution container 13 solution that contains ferrous sulfate, mix with detected water in detected water ingress pipe 2.This mixed solution becomes state of saturation state with dissolved oxygen concentration flow into and measures in groove 4 from detected water ingress pipe 2.In addition, when cleaning, from acidic solution container 12, supply with acidic solution as scavenging solution, mix with detected water in detected water ingress pipe 2, after mensuration groove 4 parts have been carried out cleaning, discharge as discharge opeing.
Import to the detected water of measuring groove 4, need to always become saturated dissolved oxygen concentration, and the maximum value of the output of oxygen electrode 10 is stablized.Because saturated dissolved oxygen concentration changes according to fluid temperature, so will measure groove 4 by temperature adjustment part 5, to maintain certain temperature be important.
In measuring groove 4, between microbial film 9 and detected water that oxygen electrode 10 front ends are set, produce following reaction.The iron bacteria that microbial film 9 keeps, can utilize oxygen that ferrous sulfate is become to ferric sulfate, is for example thiobacillus ferrooxidant (Thiobacillus ferrooxidans).It is such that the chemical equation of this chemical transformation becomes above-mentioned (1) formula, 2Fe
2(SO
4)
3ionize in water, generate Fe
3+ion.This Fe
3+ion further with water (H
2o) reaction, become Fe (OH)
3and precipitation.
In addition, the iron bacteria kept as microbial film 9, except thiobacillus ferrooxidant (Thiobacillus ferrooxidans), all microorganisms that can use the work of carrying out above-mentioned chemical equation.For example, confirmed that gallionella ferruginea (Gallionella ferruginea), iron protoxide hook end spirobacteria (Leptospirillum ferrooxidans), Leptothrix (Leptothrix), Sphaerotilus (Sphaerotilus) etc. are applicable to.
The activity of iron bacteria, be that the amount of oxidation of iron also may change due to the impact of temperature, so preferably measure groove 4, maintain activity stabilized such temperature of iron bacteria by temperature adjustment part 5.The setting of temperature adjustment part 5 is also important from this meaning.
Like this, abnormal water quality detecting device is, by detected water supply pump 6 and liquid supply pump 16, carry the mixed solution of detected water and ferrous solution to the dissolved oxygen electrode 10 of installing iron-oxidizing bacterium as detector, and export and monitored from the electric power of oxygen electrode 10 during to this conveying.In the situation that sneaked into water miscible objectionable impurities in detected water, this objectionable impurities reduces the respiratory activity of the iron-oxidizing bacterium on microbial film 9.As a result, the oxygen do not consumed by iron-oxidizing bacterium sees through microbial film 9, so arrive the oxygen amount of oxygen electrode 10, increases.As a result, the current value of oxygen electrode 10 outputs increases, and therefore judges thus sneaking into of objectionable impurities.
Above-mentioned double-tube heat exchanger 22 is that filtered water (detected water) road that makes to form the importing pipeline that is detected water enters the specified length part of pipe 17, becomes the double pipe structure shown in Fig. 2.It is configured to, and flows through detected water in the inner tube 22a of this double pipe structure, covers this inner tube 22a outer tube 22b on every side and adjusts the part of the circulating path 24 of water as temperature, and flow through temperature, adjusts water.
Circulating water temperature setter 23 is, to adjust temperature mobile in water circulation path 24 in temperature and adjust the temperature range that water is adjusted into regulation, it has the not shown heating part of temperature adjustment use, adjust water for the temperature that inside is stored and maintain specified temperature, and added thermal control as required.
Below, to installing whole action, describe.Abnormal water quality detecting device is, the detected water that will obtain from detected water source mixes with ferrous solution or acidic solution and imports mensuration groove 4, and in the water examination that is detected water by by vent pipe 3 drainings.In the present invention, the detected water obtained after making former water is filtered by hollow fiber membrane strainer 21 flows in the inner tube 22a of double-tube heat exchanger 22, and and in outer tube 22b mobile temperature adjust between water and carry out heat exchange.
The ，You place, place that arranges that comprises the biochemical sensor of oxygen electrode 10 rises near 40 ℃ at summer temperature.Under this environment, in order to maintain the activity of iron bacteria, it is integral by temperature, adjusting below water cooling to 30 ℃; This temperature is adjusted the temperature that water is flow cell to the unit of raising iron bacteria and is controlled.
As for example rivers and creeks water of detected water, even the temperature rises to the summer more than 35 ℃, water temperature is also seldom over 30 ℃.As its reason, except the size of specific heat of water, even temperature raises, due to the latent heat losses based on evaporation, temperature also is difficult to rise.Because biochemical sensor carries out the water quality monitoring of rivers and creeks water substantially, so can utilize the distinctive low heat of this rivers and creeks water, cooling temperature is adjusted water.That is, the detected water of temperature lower (30 ℃ of less thaies) is flowed in the inner tube 22a of double-tube heat exchanger 22.Now, in outer tube 22b, the mobile groove 4 of measuring is cooled to 30 ℃ of degree temperature adjustment afterwards, that temperature is higher water, and the temperature that this temperature is higher is adjusted the water detected water cooling lower by temperature mobile in inner tube 22a.
In this case, according to the water temperature of detected water, the temperature that temperature is adjusted after water cooling reduces different.For example, when the rainy day, detected water temp decrease.And, for the detection of the objectionable impurities of detected water, within 24 hours, implement continuously, therefore for the water flowing of double-tube heat exchanger 22, also within 24 hours, implement continuously.Therefore, when night etc., even the temperature of detected water is also very low when fine day.Like this, detected water is according to envrionment conditions and change significantly, during low temperature when the rainy day or during night etc., sometimes temperature adjusted to the water undercooling.As mentioned above, in envrionment temperature during lower than 25 ℃, iron bacteria becomes dormant state and respiratory activity reduces, and causes the error-detecting that water quality is abnormal.
In order to prevent this situation, be provided with heating part in circulating thermoswitch 23, temperature is adjusted to water is heated and the temperature range of water temperature being adjusted to regulation.That is,, in circulating thermoswitch 23, the water temperature of the temperature of sending here from double-tube heat exchanger 22 being adjusted to water is detected, and, so that its water temperature becomes the mode of specified temperature, conduction and cut-off control is carried out in not shown heating part.Therefore, the envrionment temperature of measuring in groove 4 always is controlled near 30 ℃.
In general, intensification based on well heater is controlled, and its mechanism is simpler than the cooling control based on water cooler etc., even 24 hours continuous operations, rate of breakdown is also low especially.Therefore, can also reduce equipment cost.
According to above-mentioned, keep microbial films 9 at oxygen electrode 10 front ends, measure by dissolved oxygen electrode 10 the oxygen amount that sees through microbial film 9 and detect in the water quality monitoring device of the biochemical sensitive type that objectionable impurities sneaks into, even, arranging during environment reaches the hot environment more than 30 ℃ of device, also can be always maintained in the specified temperature scope measuring part.That is, between filtered water pump 18 and air diffuser tank 7, double-tube heat exchanger 22 is set, detected water is flowed in inner tube 22a, and make the temperature adjustment water flowed out from flow cell 5 flow among outer tube 22b and its temperature is controlled at below 30 ℃.On the other hand, by the heating part in circulating thermoswitch 23, carry out the control of well heater conduction and cut-off, the water temperature that will excessively reduce is thus readjusted near 30 ℃.Temperature after temperature is adjusted adjust water again water flowing in flow cell 5, and the temperature in flow cell 5 are always maintained near 30 ℃, make activity stabilizedization of microbial film 9, prevent the false alarm of " water quality is abnormal " that caused by it.
Below, the embodiment shown in Fig. 3 is described.In the present embodiment, replace the double-tube heat exchanger 22 shown in Fig. 1, by the cooling temperature mobile in circulating path 24 of circulating water temperature setter 23, adjust water.That is, be configured to circulation in the circulating path 24 that temperature adjustment water forms between flow cell 5 and circulating water temperature setter 23.And circulating water temperature setter 23 is, have and temperature is adjusted to water adjust to the not shown heating part in the temperature range of regulation, and section arranges the coil-like pipe arrangement that thermo-efficiency is higher and forms and will be detected the cooling end 23a of water as low heat within it.Therefore, be configured to, form the coil-like pipe arrangement of cooling end 23a and the ingress pipe 17 of detected water and link, and become a part of leading to the ingress pipe 17 of air diffuser tank 7 from filtered water pump 18.Other formation is identical with Fig. 1.
In the above-described configuration, host system is identical with Fig. 1, and this host system is, the detected water that will obtain from detected water source mixes with ferrous solution or acidic solution and imports mensuration groove 4, in the water examination that is detected water by by vent pipe 3 drainings.In the present embodiment, in the recirculated water catch basin of circulating thermoswitch 23, the coil-like pipe arrangement that thermo-efficiency is higher is set, and the detected water filtered by hollow fiber membrane strainer 21 is passed through, the water temperature in the recirculated water catch basin is reduced to below 30 ℃.If excessively reduce in the situation that temperature is adjusted the water temperature of water, the heating part possessed by circulating thermoswitch 23 is heated.Therefore, the water temperature of temperature being adjusted to water always is controlled near 30 ℃.
According to above-mentioned, even arranging during environment reaches the hot environment more than 30 ℃ of device, make the detected water coil-like pipe arrangement higher by the thermo-efficiency in the recirculated water catch basin that is arranged on circulating thermoswitch 23, also can make the temperature adjustment water in the recirculated water catch basin be reduced to below 30 ℃.And, in the situation that water temperature excessively reduces, by the heating part in circulating thermoswitch 23, carry out conduction and cut-off control, thus temperature is adjusted to water and readjusted near 30 ℃.So, the temperature that has made to carry out the temperature adjustment is adjusted the water water flowing in flow cell 5, therefore the temperature of the mensuration groove 4 in flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent the false alarm of " water quality is abnormal " that caused by it.
Below, the embodiment shown in Fig. 4 is described.Present embodiment is configured to, identical with the embodiment shown in Fig. 3, forms circulating path 24 between flow cell 5 and circulating water temperature setter 23, and temperature adjustment water is circulated therein.Circulating water temperature setter 23 is, have temperature is adjusted to water to adjust to the not shown heating part in the temperature range of regulation, and section arranges the coil-like pipe arrangement that thermo-efficiency is higher and forms cooling end 23a within it.Wherein, in the coil-like pipe arrangement of cooling end 23a, replace detected water and flow through with this detected water different system for feedwater, and using it as low heat.As different system for feedwater, use tap water or get final product from the underground well water drawn etc.And the detected water filtered by hollow fiber membrane strainer 21, directly import in air diffuser tank 7 by filtered water ingress pipe 17.Other formation is identical with Fig. 3.
In the above-described configuration, host system is identical with the respective embodiments described above, and this host system is, the detected water that will obtain from detected water source mixes with ferrous solution or acidic solution and imports mensuration groove 4, in the water examination that is detected water by by vent pipe 3 drainings.In the present embodiment, water cooler 23a based on coil-like pipe arrangement is set in the recirculated water catch basin of circulating thermoswitch 23, and make to circulate therein with supply feedwater, for example tap water of detected water different system, the water temperature in the recirculated water catch basin is dropped to below 30 ℃.
Here, make tap water in the situation that circulate in the coil-like pipe arrangement of cooling end 23a, because tap water is supplied with by being embedded in underground pipe arrangement, so under the hot environment in summer, generally for example, than processed water (rivers and creeks water) temperature low.And, in the situation that circulation well water in the coil-like pipe arrangement of cooling end 23a is under the hot environment in summer, for example, than processed water (rivers and creeks water) temperature lower.Therefore, with shown in Fig. 3, by the detected recirculated water catch basin of water to circulating thermoswitch 23, carrying out cooling situation, compare, cooling temperature is adjusted water more effectively.Accordingly, with the situation of Fig. 3, compare, be more suitable for situation about using under hot environment.
In addition, in the situation that temperature is adjusted the water temperature of water, excessively reduce, the heating of the heating part possessed by circulating thermoswitch 23, water temperature always is controlled to 30 ℃ near this situation identical.
According to above-mentioned, even arranging during environment reaches the hot environment more than 30 ℃ of device, make the feedwater that supplies with detected water different system, circulate in the higher coil-like pipe arrangement of thermo-efficiency in being arranged at the recirculated water catch basin of circulating thermoswitch 23, can temperature be adjusted to water in the recirculated water catch basin and be reduced to below 30 ℃.And, in the situation that water temperature excessively reduces, by the heating part in circulating thermoswitch 23, carry out conduction and cut-off control, temperature is adjusted to water and readjust near 30 ℃.Like this, the temperature that has made to carry out the temperature adjustment is adjusted the water water flowing in flow cell 5, so the temperature in the mensuration groove 4 in flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent the false alarm of " water quality is abnormal " that caused by it.
Below, the embodiment shown in Fig. 5 is described.In the present embodiment, embodiment as shown in Figure 1 is such, the temperature adjustment part 5 of the mensuration groove 4 of biochemical sensor is set, double-tube heat exchanger 22 and circulating thermoswitch 23 are linked and form circulating path 24, and adjust by the temperature of circulation in this circulating path 24 temperature that water is adjusted to regulation.Double-tube heat exchanger 22 is, detected water is flowed in inner tube 22a, temperature adjusted in the outer tube 22b of water around covering this inner tube 22a and flowed, and outer tube 22b forms the part of circulating path 24 as described above.And the detected water that has passed through inner tube 22a is directed in air diffuser tank 7.
On the other hand, circulating water temperature setter 23 is, identical with the embodiment shown in Fig. 4, have and temperature is adjusted to water adjust to the not shown heating part in the temperature range of regulation, and section arranges the coil-like pipe arrangement that thermo-efficiency is higher and forms cooling end 23a within it.In the coil-like pipe arrangement of cooling end 23a, flow through with detected water different system for feedwater (tap water or well water) etc. as low heat.Other formations are identical with Fig. 1.
In the above-described configuration, host system is identical with the respective embodiments described above, and this host system is, the detected water that will obtain from detected water source mixes with ferrous solution or acidic solution and imports mensuration groove 4, in the water examination that is detected water by by vent pipe 3 drainings.In the present embodiment, under hot environment, make to be cooled to the temperature that 30 ℃ of degree temperature afterwards is higher to adjust water by measuring groove 4, at first in double-tube heat exchanger 22, flow through its outer tube 22b, and lower detected water carries out by temperature mobile in inner tube 22a cooling.And, adjust water by the chilled temperature of this double-tube heat exchanger 22, in circulating water temperature setter 23, by the confessions such as tap water mobile in its cooling end 23a or well water feedwater, again carry out cooling.That is, in circulating path 24, mobile temperature adjustment water was cooled through 2 stages.Therefore, even in the situation that environment is significant high temperature around, also can effectively carry out cooling.In this case, in the situation that temperature is adjusted water, be cooled to below 30 ℃, the heating part also possessed by circulating thermoswitch 23, get final product near always being controlled at 30 ℃.
According to more than, even arranging during environment reaches the hot environment more than 30 ℃ of device, temperature to the high temperature from flow cell 5 outflows is adjusted water, by double-tube heat exchanger 22, undertaken cooling by managing in 22a the detected water flowed within it, and further by the confessions such as tap water mobile in the cooling end 23a at circulating thermoswitch 23 or well water feedwater, undertaken coolingly, therefore temperature can be adjusted to water and be reduced to reliably below 30 ℃.And, in the situation that water temperature excessively reduces, by the heating part in circulating thermoswitch 23, carry out conduction and cut-off control, thus temperature is adjusted to water and readjusted near 30 ℃.Like this, the temperature that has made to carry out the temperature adjustment is adjusted the water water flowing in flow cell 5, so the temperature in the mensuration groove 4 in flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent the false alarm of " water quality is abnormal " that caused by it.
Below, the embodiment shown in Fig. 6 is described.In the present embodiment, the temperature adjustment part 5 of the mensuration groove 4 of biochemical sensor is set, double-tube heat exchanger 22 and circulating thermoswitch 23 are linked and form circulating path 24, and adjust by the temperature of circulation in this circulating path 24 temperature that water is adjusted to regulation.Double-tube heat exchanger 22 is temperature adjustment water to be managed in 22a within it and flow, and form the part of circulating path 24.Make to flow in covering this inner tube 22a outer tube 22b on every side with the feedwater (tap water or well water etc.) that supplies of detected water different system, and temperature mobile in inner tube 22a is adjusted to water and carry out cooling.Circulating water temperature setter 23 is to adjust in the temperature range of regulation for temperature being adjusted to water, and have not shown heating part.And section, identical with the embodiment of Fig. 3 within it, the coil-like pipe arrangement that thermo-efficiency is higher be set and form and will be detected the cooling end 23a of water as low heat.The detected water that has passed through this cooling end 23a is imported into air diffuser tank 7.And, through 5 circulations to the temperature adjustment part of circulating water temperature setter 23.
In the above-described configuration, host system is identical with the respective embodiments described above, and this host system is, the detected water that will obtain from detected water source mixes with ferrous solution or acidic solution and imports mensuration groove 4, in the water examination that is detected water by by vent pipe 3 drainings.In the present embodiment, under hot environment, make to be cooled to the higher temperature of temperature of 30 ℃ of degree to adjust water by measuring groove 4, at first flow through the inner tube 22a of double-tube heat exchanger 22, undertaken cooling by the confessions such as tap water mobile in its outer tube 22b or well water feedwater.Then, make this temperature adjust water in circulating water temperature setter 23, the detected water lower by temperature mobile in its cooling end 23a carries out cooling.That is, in circulating path 24, mobile temperature adjustment water was cooled through 2 stages.Therefore, even in the situation that environment is remarkable high temperature around, also can effectively carry out cooling.In this case, in the situation that temperature is adjusted water, be cooled to below 30 ℃, the heating part also possessed by circulating thermoswitch 23, get final product near always being controlled at 30 ℃.
According to more than, even the environment that arranges at device is significant hot environment, make from the temperature adjustment water of the high temperature of flow cell 5 outflows, in the inner tube 22a of double-tube heat exchanger 22, flow, and undertaken cooling by the confessions such as tap water mobile in its outer tube 22b or well water feedwater, and further by the detected water flowed in the cooling end 23a at circulating thermoswitch 23, undertaken coolingly, be reduced to reliably below 30 ℃ so also can make temperature adjust water.And, in the situation that water temperature excessively reduces, by the heating part in circulating thermoswitch 23, carry out conduction and cut-off control, thus temperature is adjusted to water and readjusted near 30 ℃.Like this, the temperature that has made to carry out the temperature adjustment is adjusted in water waterway flow cell 5, so the temperature in the mensuration groove 4 in flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent the false alarm of " water quality is abnormal " that caused by it.
Claims (5)
1. an abnormal water quality detecting device, will be detected water and import and measure groove and detect its water quality and have or not extremely, and this mensuration groove remains in predefined temperature range by the temperature adjustment part; This abnormal water quality detecting device is characterised in that to possess:
Circulating path, for the said determination groove being remained in the temperature range of regulation, link and circulation supplying temperature adjustment water with the said temperature adjustment part;
Double-tube heat exchanger, inner tube using the specified length of the importing pipeline of above-mentioned detected water part as above-mentioned detected water flow, and arrange and to cover the outer tube around this inner tube and become two-tube structure, and the mode of a part and the above-mentioned circulating path that become above-mentioned circulating path with above-mentioned outer tube link, make said temperature adjust water and circulate in above-mentioned outer tube; And
The circulating water temperature setter, link with above-mentioned circulating path, and have said temperature is adjusted to the heating part that water is adjusted to the temperature range of afore mentioned rules,
Make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned double-tube heat exchanger, above-mentioned circulating water temperature setter and said determination groove.
2. an abnormal water quality detecting device, will be detected water and import and measure groove and detect its water quality and have or not extremely, and this mensuration groove remains in predefined temperature range by the temperature adjustment part; This abnormal water quality detecting device is characterised in that to possess:
Circulating path, for the said determination groove being remained in the temperature range of regulation, link and circulation supplying temperature adjustment water with the said temperature adjustment part; With
The circulating water temperature setter, link with above-mentioned circulating path, and have heating part and cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, the ingress pipe of this cooling end and above-mentioned detected water links, should be detected water as low heat
Make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned circulating water temperature setter and said determination groove.
3. an abnormal water quality detecting device, will be detected water and import and measure groove and detect its water quality and have or not extremely, and this mensuration groove remains in predefined temperature range by the temperature adjustment part; This abnormal water quality detecting device is characterised in that to possess:
Circulating path, for the said determination groove being remained in the temperature range of regulation, link and circulation supplying temperature adjustment water with the said temperature adjustment part; With
The circulating water temperature setter, link with above-mentioned circulating path, and have heating part and cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, this cooling end is linked to the confession water service pipe of above-mentioned detected water different system, using this confession feedwater as low heat
Make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned circulating water temperature setter and said determination groove.
4. an abnormal water quality detecting device, will be detected water and import and measure groove and detect its water quality and have or not extremely, and this mensuration groove remains in predefined temperature range by the temperature adjustment part; This abnormal water quality detecting device is characterised in that to possess:
Circulating path, for the said determination groove being remained in the temperature range of regulation, link and circulation supplying temperature adjustment water with the said temperature adjustment part;
Double-tube heat exchanger, inner tube using the specified length of the importing pipeline of above-mentioned detected water part as above-mentioned detected water flow, and arrange and to cover the outer tube around this inner tube and become two-tube structure, and the mode of a part and this circulating path that become above-mentioned circulating path with above-mentioned outer tube link, make said temperature adjust water and circulate in above-mentioned outer tube; And
The circulating water temperature setter, link with above-mentioned circulating path, and have heating part and cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, this cooling end is linked to the confession water service pipe of above-mentioned detected water different system, using this confession feedwater as low heat
Make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned double-tube heat exchanger, above-mentioned circulating water temperature setter and said determination groove.
5. an abnormal water quality detecting device, will be detected water and import and measure groove and detect its water quality and have or not extremely, and this mensuration groove remains in predefined temperature range by the temperature adjustment part; This abnormal water quality detecting device is characterised in that to possess:
Circulating path, for the said determination groove being remained in the temperature range of regulation, link and circulation supplying temperature adjustment water with the said temperature adjustment part;
The circulating water temperature setter, with above-mentioned circulating path, link, and there is heating part and cooling end, and the temperature range that water is adjusted to afore mentioned rules is adjusted by said temperature in this heating part, and the ingress pipe of this cooling end and above-mentioned detected water links, should be detected water as low heat; And
Double-tube heat exchanger, adjust the inner tube of water flow using the specified length of above-mentioned circulating path part as said temperature, and arrange and to cover the outer tube around this inner tube and become two-tube structure, above-mentioned outer tube is linked to and the circulating for feedwater for water service pipe of above-mentioned detected water different system
Make said temperature adjust water via above-mentioned circulating path the sequential flowing according to said determination groove, above-mentioned double-tube heat exchanger, above-mentioned circulating water temperature setter and said determination groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP042619/2009 | 2009-02-25 | ||
| JP2009042619A JP4693912B2 (en) | 2009-02-25 | 2009-02-25 | Abnormal water quality detection device |
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| CN101812402A CN101812402A (en) | 2010-08-25 |
| CN101812402B true CN101812402B (en) | 2013-12-25 |
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| CN 201010003233 Expired - Fee Related CN101812402B (en) | 2009-02-25 | 2010-01-11 | Inspecting device for abnormal water quality |
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| JP (1) | JP4693912B2 (en) |
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| JP6126387B2 (en) * | 2013-01-25 | 2017-05-10 | 株式会社日立ハイテクノロジーズ | Electrolyte analyzer with double tube structure sample suction nozzle |
| CN103885469A (en) * | 2014-04-16 | 2014-06-25 | 湖南科技学院 | Automatic pesticide concentration blending system and control device |
| FR3053359B1 (en) * | 2016-06-30 | 2021-01-08 | Suez Groupe | PROCESS FOR CONTROL OF THE CONCENTRATION OF BACTERIA IN A WATER DISTRIBUTION NETWORK |
| KR101856464B1 (en) * | 2016-12-12 | 2018-05-11 | 한전원자력연료 주식회사 | Temperature retaining device for pressure vessel |
| CN114778648B (en) * | 2022-04-24 | 2023-10-31 | 深圳科瑞德健康科技有限公司 | System and method for testing oxidation-reduction potential value of aqueous solution |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1490252A (en) * | 2002-10-16 | 2004-04-21 | 天津市环境保护科学研究所 | Industrial waste liquid treatment by nano filtering membrane and material recovery art design |
| JP2005091091A (en) * | 2003-09-16 | 2005-04-07 | Fuji Electric Systems Co Ltd | Method of monitoring toxic substance in environmental water |
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| JP2988013B2 (en) * | 1991-06-25 | 1999-12-06 | 富士電機株式会社 | Thermostat for biosensor |
| JP2004271441A (en) * | 2003-03-11 | 2004-09-30 | Toshiba Corp | Biosensor type detector for abnormality of water quality |
| JP2004279105A (en) * | 2003-03-13 | 2004-10-07 | Toshiba Corp | Biosensor type abnormal water quality detector |
| JP4461289B2 (en) * | 2004-09-30 | 2010-05-12 | メタウォーター株式会社 | Detection method of harmful substances in environmental water using biosensor |
| JP4594764B2 (en) * | 2005-03-03 | 2010-12-08 | 株式会社東芝 | Pretreatment equipment for water quality measurement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490252A (en) * | 2002-10-16 | 2004-04-21 | 天津市环境保护科学研究所 | Industrial waste liquid treatment by nano filtering membrane and material recovery art design |
| JP2005091091A (en) * | 2003-09-16 | 2005-04-07 | Fuji Electric Systems Co Ltd | Method of monitoring toxic substance in environmental water |
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| CN101812402A (en) | 2010-08-25 |
| JP4693912B2 (en) | 2011-06-01 |
| JP2010197225A (en) | 2010-09-09 |
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