CN101812402A - An inspecting device for abnormal water quality - Google Patents
An inspecting device for abnormal water quality Download PDFInfo
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- CN101812402A CN101812402A CN201010003233A CN201010003233A CN101812402A CN 101812402 A CN101812402 A CN 101812402A CN 201010003233 A CN201010003233 A CN 201010003233A CN 201010003233 A CN201010003233 A CN 201010003233A CN 101812402 A CN101812402 A CN 101812402A
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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, detecting its water quality under the state that detected water is remained in the predefined temperature range has no abnormal.
Background technology
, in water purification plant,, rivers and creeks water etc. was fetched water in the past, and this water of obtaining is supplied with by the sedimentation and filtration groove be tap water as usually conduct.If in this usually conduct, in inexpungible objectionable impurities, for example each heavy metal species or materials such as agricultural chemicals and Environmental Hormone are sneaked under the situation of rivers and creeks water, can cause being called the emergency situation that water intaking stops.
On the other hand, in following water treatment plant, because burst accident or do not note, in the draining of workshop or chemical plant, sneak into various heavy metal ion or organic solvent and arsenic, cyanogen etc., fashionable when these substance flow, the active sludge microorganism in the following water treatment procedure is subjected to bigger obstruction, result, the activity of active sludge reduces, and needs the plenty of time and recover processing power.
Therefore, in water purification plant and following water treatment plant etc., under the situation of having sneaked into above-mentioned various objectionable impuritiess, expectation detects the device that flows into water rapidly and in high sensitivity.
According to this expectation, in water purification plant, use the poisonous substance proofing unit of fish action monitoring type or various microbial films are installed on the dissolved oxygen electrode and detect the device of poisonous substance according to the mensuration of its respiratory activity.In addition, in following water treatment plant, be provided with various transmitters at each intake, this transmitter detects the draining of having sneaked into particular chemicals.
Wherein, be arranged at the poisonous substance proofing unit of the fish action monitoring type of water purification plant, owing 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 bigger 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 monitoring type: this device self is larger, at a large amount of funds of the raisings of fish and management aspect needs etc.
Therefore, develop biochemical sensor formula abnormal water quality detecting device.As an example, have the open communique of Japanese Patent: the spy opens the device shown in the 2004-271441.As detector, can work under the environment of the lower pH value that objectionable impurities or assorted bacterium are difficult to breed by this iron-oxidizing bacterium with iron-oxidizing bacterium for this abnormal water quality detecting device.
In this biochemical sensitive type water quality monitoring device, at first, in the air diffuser tank,, the water of checking is carried out air diffuser by being adjusted into certain gas with air or with oxygen concn, make it become the saturated state of dissolved oxygen concentration.The detected water supply of handling like this is contained the solution of ferrous sulfate, and mix with detected water.This mixed solution becomes to flow under the state of state of saturation at dissolved oxygen concentration to be measured in the groove.
In measuring groove, be provided with oxygen electrode, be adjusted into certain gas by air supply or with 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 the groove.Microbial film maintains iron-oxidizing bacterium (being also referred to as iron bacteria), and this iron-oxidizing bacterium can utilize oxygen that ferrous sulfate is become 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 carries out with iron bacteria on the microbial film that detected water contacts 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)
3Ionization in water generates Fe
3+Ion.This Fe
3+Ion further with water (H
2O) reaction becomes ironic hydroxide Fe (OH)
3And precipitation.
In this abnormal water quality detecting device, to the dissolved oxygen electrode that iron-oxidizing bacterium is installed 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 detected water, do not sneak under the situation of objectionable impurities, because the dissolved oxygen in the detected water is by the oxidation consumption of iron, so extremely low by the detected value of oxygen electrode.Relative with it, in detected water, to have sneaked under the situation of water miscible objectionable impurities, this objectionable impurities reduces the respiratory activity of the iron-oxidizing bacterium on the microbial film.As a result, because the oxygen that is consumed by iron-oxidizing bacterium does not see through microbial film, increase so arrive the oxygen amount of oxygen electrode, the current value of oxygen electrode output increases.Therefore, by, and judge sneaking into of objectionable impurities with the output current value of oxygen electrode and threshold ratio.
In addition, when this biochemical sensitive type abnormal water quality detecting device continuous operation, the dirty material in the detected water adheres to and is piled up on the inwall of each pipe arrangement.And the part of the ferrous sulfate in the ferrous solution is oxidized to ferric sulfate, and 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 is cleaned ": in the detected water ingress pipe of carrying detected water and the mixed solution of the solution that contains ferrous sulfate, supply with acidic solution, will adhere to the dirty material and the ferric oxide that are piled up in detected water ingress pipe or measure on the detected water-flowing path such as groove and remove and discharge.
In this biochemical sensitive type abnormal water quality detecting device, when in case when sending the alarm of " water quality is unusual ", for example in water purification plant, implement urgent systems such as terrified countermeasure disposal, and take to fetch water and stop or suitable with it interim disposal.But, be under the situation of false alarm in this " water quality is unusual " alarm, not only the facility that is provided with device is brought a large amount of troubles, and because water intaking stops, the running of equipment stops temporarily in the facility, produces more infringement.Therefore, require the reliability of " water quality is unusual " alarm.
Therefore, the temperature treatment of the microbial film of the iron bacteria of maintenance transmitter portion becomes strict.That is, the most suitable temperature of iron bacteria is near 25～32 ℃, and is active best near 30 ℃.
Under envrionment temperature was situation below 25 ℃, iron bacteria became dormant state and respiratory activity reduces, and the oxygen that is consumed by iron bacteria sees through microbial film, increases so arrive the oxygen amount of oxygen electrode.As a result, the current value of oxygen electrode output increases, and therefore causes the unusual error-detecting of water quality, but sends the temperature anomaly alarm usually earlier.At this moment, if the envrionment temperature after reducing in 4～25 ℃ scope, then iron bacteria can be dead, if therefore make temperature treatment turn back to the most suitable temperature of iron bacteria, then can restart water quality monitoring.
On the other hand, when even envrionment temperature once surpasses 32 ℃, iron bacteria is not dormancy but death, so above-mentioned water quality exception error detection (sending the temperature anomaly alarm earlier) not only takes place, even and envrionment temperature turns back to the most suitable temperature of iron bacteria once more, this iron bacteria can not be used.Therefore, need the exchange of microbial film, the exchange back can not begin water quality monitoring once more before the activity that is able to use.
Therefore, temperature treatment is maintained in the most suitable temperature range of iron bacteria, be related to the utilization of device long-term stability.Particularly, in order under hot environment, to use iron bacteria continuously, make envrionment temperature not change and prevent that the death of iron bacteria from being integral to high temperature side.
But, under the situation in the buildings that separates in water intaking field that biochemical sensor is arranged at water purification plant etc., with the center buildings,, and can rise near 40 ℃ at summer temperature though that the place that has is in indoor air-cooling system is incomplete.Under this environment, in order to keep the activity of iron bacteria, recirculated water is cooled off to being integral below 30 ℃, this recirculated water is that the temperature of flow cell is controlled to the unit of raising iron bacteria.
Generally possess the thermosistor price height of recirculated water of the refrigerating function of refrigerant evaporation formula, and do not possess the function that can tolerate 24 hours continuous operation.And, when the thermosistor of the refrigerant evaporation formula that high price is set,, can cause the high standardization of biochemical sensor itself with respect to the only use in a period of summer among a year.
Summary of the invention
The purpose of this invention is to provide a kind of abnormal water quality detecting device, even the environment that is provided with at biochemical sensor reaches in the hot environment more than 30 ℃, 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 unusual " that cause thus yet.
Abnormal water quality detecting device of the present invention is, detected water imported to measure groove and detect its water quality and have no abnormal, this mensuration groove remains in the 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, link and circulation supplying temperature adjustment water with the said temperature adjustment part; Double-tube heat exchanger, with the specified length part of the importing pipeline of above-mentioned detected water as managing in the above-mentioned detected water mobile, and setting covers the outer tube around the pipe in this and becomes 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, and makes 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 the heating part that water is adjusted to the temperature range of afore mentioned rules.
And abnormal water quality detecting device of the present invention also can constitute, and possesses: above-mentioned circulating path; 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 with said temperature in this heating part, the ingress pipe of this cooling end and above-mentioned detected water links, should detected water as low heat.
And abnormal water quality detecting device of the present invention also can constitute, and possesses: above-mentioned circulating path; With the circulating water temperature setter, link with above-mentioned circulating path, and have heating part and a cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted with said temperature in this heating part, and this cooling end is linked to the supply water pipe of above-mentioned detected water different system, should supplies with water as low heat.
And abnormal water quality detecting device of the present invention also can constitute, and possesses: above-mentioned circulating path; Double-tube heat exchanger, with the specified length part of the importing pipeline of above-mentioned detected water as managing in the above-mentioned detected water mobile, and setting covers the outer tube around the pipe in this and becomes 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, and makes said temperature adjust water and circulate in above-mentioned outer tube; And circulating water temperature setter, link with above-mentioned circulating path, and have heating part and a cooling end, the temperature range that water is adjusted to afore mentioned rules is adjusted with said temperature in this heating part, and this cooling end is linked to the supply water pipe of above-mentioned detected water different system, should supplies with water as low heat.
And abnormal water quality detecting device of the present invention also can constitute, and possesses: above-mentioned circulating path; 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 with said temperature in this heating part, the ingress pipe of this cooling end and above-mentioned detected water links, should detected water as low heat; And double-tube heat exchanger, the specified length of above-mentioned circulating path part adjusted in the water mobile as said temperature manage, and be provided with and cover in this outer tube around pipe and to become two-tube structure, make above-mentioned outer tube be linked to the supply water that circulates with the supply water pipe of above-mentioned detected water different system.
According to the present invention, even in summer, by will be than the low tap water of temperature or rivers and creeks water etc. as low heat, and cooling temperature adjusting recirculated water, and heat as required, even under hot environment, also the temperature of detected water can be remained in the specialized range thus, therefore can correctly detect the error state (ERST) of detected water.
Description of drawings
Fig. 1 is system's pie graph of the 1st embodiment of expression abnormal water quality detecting device of the present invention.
Fig. 2 is the part figure that is illustrated in the configuration example of the double-tube heat exchanger that uses in the 1st the same embodiment.
Fig. 3 is system's pie graph of the 2nd embodiment of expression abnormal water quality detecting device of the present invention.
Fig. 4 is system's pie graph of the 3rd embodiment of expression abnormal water quality detecting device of the present invention.
Fig. 5 is system's pie graph of the 4th embodiment of expression abnormal water quality detecting device of the present invention.
Fig. 6 is system's pie graph of the 5th embodiment of expression 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
Pipe in the 22a
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 represents that the integral body of the present invention's the 1st embodiment constitutes.This abnormal detector is, detecting its water quality under the state that detected water is remained in the predefined temperature range has no abnormally, as the one example, uses the device that is provided with the structure of oxygen electrode 10 in measuring groove 4.Front end (measuring the diagram bottom in the groove 4) at this oxygen electrode 10 is equipped with microbial film 9.And this measures groove 4 and detected water ingress pipe 2 bindings, is imported into detected water.And, this mensuration groove 4 by be arranged on around it, also be known as the temperature adjustment part 5 with hot-swap feature of flow cell (Off ロ one セ Le), be adjusted into specified temperature.This temperature adjustment part 5 links with the circulating path 24 that temperature is adjusted water, is recycled supply and adjusts water by the temperature that circulating thermoswitch 23 is adjusted into specified temperature.
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 the groove 4.And, being connected with transform operation mechanism 11 on the oxygen electrode 10,11 pairs of electric power outputs of taking out from oxygen electrode 10 of this transform operation mechanism are amplified, conversion, implement the computing of regulation, and judge the exception water quality of detected water as described later.
The buffering of air diffuser tank 7 double as when measuring the detected water of groove 4 supplies, from the detected water at the water source that should check (for example inflow in rivers and creeks, to the inflow water of water purification plant, the inflow water etc. of water treatment plant downwards), be imported into by strainer 21 based on hollow fiber membrane etc., and by filtered water pump 18 via being imported into importing the double-tube heat exchanger 22 that is constituted on the pipeline 17.
In this air diffuser tank 7,, be adjusted into certain gas from gas feeder 8 air supplies or with oxygen concn, and become the detected water that dissolved oxygen concentration is a state of saturation for the detected water that is imported.So dissolved oxygen concentration becomes the detected water of state of saturation, is sent detected water ingress pipe 2 via magnetic valve 20 by detected water supply pump 6, and supplies to mensuration groove 4.
On detected water ingress pipe 2,, and be communicated with acidic solution container 12, ferrous solution container 13 via the magnetic valve 14,15 of correspondence, shared soup ingress pipe 19 and soup supply pump 16.Supply with the solution that contains ferrous sulfate from ferrous solution container 13, in detected water ingress pipe 2, mix with detected water.This mixed solution becomes state of saturation with dissolved oxygen concentration state flow in the mensuration groove 4 from detected water ingress pipe 2.In addition, when cleaning, supply with acidic solution as scavenging solution, in detected water ingress pipe 2, mix, after mensuration groove 4 parts have been carried out cleaning, discharge as discharge opeing with detected water from acidic solution container 12.
Import to the detected water of measuring groove 4, need 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, to maintain certain temperature be important so will measure groove 4 by temperature adjustment part 5.
In measuring groove 4, between the microbial film 9 and detected water that oxygen electrode 10 front ends are set, produce following reaction.The iron bacteria that microbial film 9 is kept can utilize oxygen that ferrous sulfate is become ferric sulfate, for example is thiobacillus ferrooxidant (Thiobacillus ferrooxidans).It is such that the chemical equation of this chemical transformation becomes above-mentioned (1) formula, 2Fe
2(SO
4)
3Ionization in water generates Fe
3+Ion.This Fe
3+Ion further with water (H
2O) reaction becomes Fe (OH)
3And precipitation.
In addition, the iron bacteria that is 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 fit to.
The activity of iron bacteria, be that the amount of oxidation of iron also may be owing to Temperature Influence changes, so preferably measure groove 4 maintains iron bacteria by temperature adjustment part 5 activity stabilized such temperature.The setting of temperature adjustment part 5 also is important from this meaning.
Like this, abnormal water quality detecting device is, by detected water supply pump 6 and soup supply pump 16, carry the mixed solution of detected water and ferrous solution to the dissolved oxygen electrode 10 that iron-oxidizing bacterium is installed as detector, and export from the electric power of oxygen electrode 10 during to this conveying and monitor.Sneaked in detected water under the situation of water miscible objectionable impurities, this objectionable impurities reduces the respiratory activity of the iron-oxidizing bacterium on the microbial film 9.As a result, the oxygen that is consumed by iron-oxidizing bacterium does not see through microbial film 9, increases so arrive the oxygen amount of oxygen electrode 10.As a result, the current value of oxygen electrode 10 outputs increases, and therefore judges sneaking into of objectionable impurities thus.
Above-mentioned double-tube heat exchanger 22 is, makes filtered water (detected water) road of the importing pipeline that constitutes detected water go into the specified length part of pipe 17, becomes double pipe structure shown in Figure 2.It constitutes, and flows through detected water in the interior pipe 22a of this double pipe structure, covers to manage the part of 22a outer tube 22b on every side as the circulating path 24 of temperature adjustment water in this, adjusts water and flow through temperature.
Circulating water temperature setter 23 is, to adjust mobile temperature in the 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 usefulness, maintain specified temperature for the temperature that inside stored is adjusted water, and add thermal control as required.
Below, describe installing whole action.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 and measure groove 4, and in the water examination of detected water after by vent pipe 3 drainings.In the present invention, make the detected water that former water is obtained by hollow fiber membrane strainer 21 filtration backs, in the interior pipe 22a of double-tube heat exchanger 22, flow, and and in outer tube 22b, carry out heat exchange between the mobile temperature adjustment water.
Comprise oxygen electrode 10 biochemical sensor the place is set, the place that has rises near 40 ℃ at summer temperature.Under this environment, in order to keep the activity of iron bacteria, it is integral adjusting temperature below the water cooling to 30 ℃; It is that the temperature of flow cell is controlled to the unit of raising iron bacteria that this temperature is adjusted water.
As for example rivers and creeks water of detected water, even in that the temperature rises to the summer more than 35 ℃, water temperature is also seldom above 30 ℃.As its reason, except the size of specific heat of water, even temperature raises, because based on the latent heat losses of evaporating, temperature also is difficult to rise.Because biochemical sensor carries out the water quality monitoring of rivers and creeks water substantially, cooling temperature is adjusted water so can utilize the distinctive low heat of this rivers and creeks water.That is, the detected water of temperature lower (30 ℃ of less thaies) is flowed in the interior pipe 22a of double-tube heat exchanger 22.At this moment, in outer tube 22b, flow will measure groove 4 be cooled to after 30 ℃ of degree, temperature adjusts water than higher temperature, this temperature is adjusted the lower detected water cooling of mobile temperature in interior pipe 22a of water quilt than higher temperature.
In this case, according to the water temperature of detected water, the temperature that temperature is adjusted after the water cooling reduces different.For example, when the rainy day, detected water temp reduces significantly.And, implemented continuously in 24 hours for the detection of the objectionable impurities of detected water, therefore also implemented continuously in 24 hours for the water flowing of double-tube heat exchanger 22.Therefore, when night etc., even the temperature of detected water is also very low when fine day.Like this, detected water is change according to envrionment conditions and significantly, during low temperature when the rainy day or during night etc., sometimes temperature is adjusted the water undercooling.As mentioned above, when envrionment temperature was lower than 25 ℃, iron bacteria became dormant state and the respiratory activity reduction, causes the unusual error-detecting of water quality.
In order to prevent this situation, in circulating thermoswitch 23, be provided with the heating part, temperature is adjusted that water heats 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 water detects, 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 the groove 4 always is controlled near 30 ℃.
In general, based on the intensification of well heater control, its mechanism simple than based on the cooling control of water cooler etc., even 24 hours continuous operation, rate of breakdown is also low especially.Therefore, can also reduce equipment cost.
According to above-mentioned, keep microbial film 9 at oxygen electrode 10 front ends, measure the oxygen amount that sees through microbial film 9 by dissolved oxygen electrode 10 and detect in the water quality monitoring device of the biochemical sensitive type that objectionable impurities sneaks into, even the environment that is provided with at device reaches in the hot environment more than 30 ℃, 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 interior pipe 22a, and make and adjust water from flow cell 5 effusive temperature and among outer tube 22b, flow and its temperature is controlled at below 30 ℃.On the other hand, by the control of well heater conduction and cut-off is carried out in the heating part in the circulating thermoswitch 23, the water temperature that will excessively reduce is readjusted near 30 ℃ thus.Make the adjusted temperature of temperature adjust water once more water flowing in flow cell 5, and the temperature in the flow cell 5 are always maintained near 30 ℃, make activity stabilizedization of microbial film 9, prevent false alarm by its " water quality is unusual " that causes.
Below, embodiment shown in Figure 3 is described.In the present embodiment, replace double-tube heat exchanger 22 shown in Figure 1, cool off mobile temperature adjustment water in circulating path 24 by circulating water temperature setter 23.That is, constitute 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 temperature is adjusted water to adjust to not shown heating part in the temperature range of regulation, and portion is provided with the higher coil-like pipe arrangement of thermo-efficiency and constitutes the cooling end 23a of detected water as low heat within it.Therefore, constitute, constitute 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 and imports with ferrous solution or acidic solution and measures groove 4, in the water examination of detected water after by vent pipe 3 drainings.In the present embodiment, in the recirculated water catch basin of circulating thermoswitch 23, the higher coil-like pipe arrangement of thermo-efficiency is set, and the detected water that has been 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 adjust in temperature under the excessive situation about reducing of water temperature of water, heat by the heating part that circulating thermoswitch 23 is possessed.Therefore, the water temperature of temperature being adjusted water always is controlled near 30 ℃.
According to above-mentioned, even the environment that is provided with at device reaches in the hot environment more than 30 ℃, make detected water by the higher coil-like pipe arrangement of the thermo-efficiency in the recirculated water catch basin that is arranged on circulating thermoswitch 23, the temperature adjustment water in the recirculated water catch basin is reduced to below 30 ℃.And, under the situation that water temperature excessively reduces,, thus temperature is adjusted water and is readjusted near 30 ℃ by conduction and cut-off control is carried out in the heating part in the circulating thermoswitch 23.So, make the temperature of having carried out the temperature adjustment adjust the water water flowing in flow cell 5, therefore the temperature of the mensuration groove 4 in the flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent false alarm by its " water quality is unusual " that causes.
Below, embodiment shown in Figure 4 is described.Present embodiment constitutes, and is identical with embodiment shown in Figure 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 water to adjust to not shown heating part in the temperature range of regulation, and portion is provided with the higher coil-like pipe arrangement of thermo-efficiency and constitutes cooling end 23a within it.Wherein, in the coil-like pipe arrangement of cooling end 23a, replace detected water and flow through supply water with this detected water different system, and with it as low heat.As the supply water of different system, use tap water or get final product from the underground well water that draws etc.And the detected water by hollow fiber membrane strainer 21 has filtered directly imports in the 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 and imports with ferrous solution or acidic solution and measures groove 4, in the water examination of detected water after 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 supply water, for example tap water with detected water different system are circulated therein, the water temperature in the recirculated water catch basin is dropped to below 30 ℃.
Here, under situation about circulating in the coil-like pipe arrangement that makes tap water at cooling end 23a, owing to tap water is supplied with by being embedded in subterranean pipe arrangement, so under the hot environment in summer, generally low than processed water (for example rivers and creeks water) temperature.And, under the situation of circulation well water, under the hot environment in summer, lower in the coil-like pipe arrangement of cooling end 23a than processed water (for example rivers and creeks water) temperature.Therefore, with shown in Figure 3, compare by carrying out the refrigerative situation in the recirculated water catch basin of detected water to circulating thermoswitch 23, cooling temperature is adjusted water more effectively.In view of the above, compare, be more suitable for situation about using under hot environment with the situation of Fig. 3.
In addition, adjust under the situation that the water temperature of water excessively reduces in temperature, the heating of the heating part that is possessed by circulating thermoswitch 23, water temperature always is controlled at 30 ℃ near this situation identical.
According to above-mentioned, even the environment that is provided with at device reaches in the hot environment more than 30 ℃, make supply water 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 in the recirculated water catch basin, temperature be adjusted water and be reduced to below 30 ℃.And, under the situation that water temperature excessively reduces,, temperature is adjusted water readjusts near 30 ℃ by conduction and cut-off control is carried out in the heating part in the circulating thermoswitch 23.Like this, make the temperature of having carried out the temperature adjustment adjust the water water flowing in flow cell 5, so the temperature in the mensuration groove 4 in the flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent false alarm by its " water quality is unusual " that causes.
Below, embodiment shown in Figure 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 linked and constitute circulating path 24, and adjust the temperature that water is adjusted to regulation by round-robin temperature in this circulating path 24.Double-tube heat exchanger 22 is, detected water is flowed in interior pipe 22a, makes temperature adjust water and flows among the outer tube 22b around the pipe 22a in covering this, and outer tube 22b constitutes the part of circulating path 24 as described above.And the detected water that has passed through interior pipe 22a is directed in the air diffuser tank 7.
On the other hand, circulating water temperature setter 23 is, identical with embodiment shown in Figure 4, have and temperature is adjusted water adjust to not shown heating part in the temperature range of regulation, and portion is provided with the higher coil-like pipe arrangement of thermo-efficiency and constitutes cooling end 23a within it.In the coil-like pipe arrangement of cooling end 23a, flow through supply water (tap water or well water) with detected water different system etc. and 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 and imports with ferrous solution or acidic solution and measures groove 4, in the water examination of detected water after by vent pipe 3 drainings.In the present embodiment, under hot environment, make to be cooled to 30 ℃ of degree temperature afterwards than higher temperature adjustment water, at first in double-tube heat exchanger 22, flow through its outer tube 22b, and cool off by the detected water that the mobile temperature is lower in interior pipe 22a with measuring groove 4.And, adjust water by these double-tube heat exchanger 22 chilled temperature, in circulating water temperature setter 23, cool off once more by supply water such as mobile tap water or well water in its cooling end 23a.That is, mobile temperature adjustment water was cooled through 2 stages in circulating path 24.Therefore, even environment is under the significant pyritous situation around, also can cool off effectively.In this case, adjust water in temperature and be cooled under the situation below 30 ℃, the also heating part that is possessed by circulating thermoswitch 23 gets final product near always being controlled at 30 ℃.
According to more than, even the environment that is provided with at device reaches in the hot environment more than 30 ℃, to adjusting water from flow cell 5 effusive pyritous temperature, by double-tube heat exchanger 22, the detected water of mobile cools off among the 22a by managing within it, and further cool off, therefore temperature can be adjusted water and be reduced to reliably below 30 ℃ by supply water such as mobile tap water or well water in the cooling end 23a of circulating thermoswitch 23.And, under the situation that water temperature excessively reduces,, thus temperature is adjusted water and is readjusted near 30 ℃ by conduction and cut-off control is carried out in the heating part in the circulating thermoswitch 23.Like this, make the temperature of having carried out the temperature adjustment adjust the water water flowing in flow cell 5, so the temperature in the mensuration groove 4 in the flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent false alarm by its " water quality is unusual " that causes.
Below, embodiment shown in Figure 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 linked and constitute circulating path 24, and adjust the temperature that water is adjusted to regulation by round-robin temperature in this circulating path 24.Double-tube heat exchanger 22 is temperature adjustment water to be managed among the 22a within it flow, and constitute the part of circulating path 24.Make in covering this, to manage among the outer tube 22b around the 22a and flow, and mobile temperature in interior pipe 22a is adjusted water cool off with the supply water (tap water or well water etc.) of detected water different system.Circulating water temperature setter 23 is to adjust in the temperature range of regulation for temperature being adjusted water, and have not shown heating part.And portion is identical with the embodiment of Fig. 3 within it, the higher coil-like pipe arrangement of thermo-efficiency is set and constitutes the cooling end 23a of detected water as low heat.The detected water that has passed through this cooling end 23a is imported into air diffuser tank 7.And, circulate to temperature adjustment part 5 through 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 and imports with ferrous solution or acidic solution and measures groove 4, in the water examination of detected water after by vent pipe 3 drainings.In the present embodiment, under hot environment, make the temperature that mensuration groove 4 is cooled to 30 ℃ of degree than higher temperature adjustment water, at first flow through the interior pipe 22a of double-tube heat exchanger 22, cool off by supply water such as mobile tap water or well water in its outer tube 22b.Then, make this temperature adjust water in circulating water temperature setter 23, cool off by the detected water that the mobile temperature is lower in its cooling end 23a.That is, mobile temperature adjustment water was cooled through 2 stages in circulating path 24.Therefore, even environment is under the remarkable pyritous situation around, also can cool off effectively.In this case, adjust water in temperature and be cooled under the situation below 30 ℃, the also heating part that is possessed by circulating thermoswitch 23 gets final product near always being controlled at 30 ℃.
According to more than, even the environment that is provided with at device is significant hot environment, make from flow cell 5 effusive pyritous temperature and adjust water, in the interior pipe 22a of double-tube heat exchanger 22, flow, and cool off by supply water such as mobile tap water or well water in its outer tube 22b, and further cool off, be reduced to reliably below 30 ℃ so also can make temperature adjust water by the detected water of mobile in the cooling end 23a of circulating thermoswitch 23.And, under the situation that water temperature excessively reduces,, thus temperature is adjusted water and is readjusted near 30 ℃ by conduction and cut-off control is carried out in the heating part in the circulating thermoswitch 23.Like this, the temperature of having carried out the temperature adjustment is adjusted in the water waterway flow cell 5, so the temperature in the mensuration groove 4 in the flow cell 5 can be always maintained near 30 ℃.As a result, make activity stabilizedization of microbial film 9, prevent false alarm by its " water quality is unusual " that causes.
Claims (5)
1. abnormal water quality detecting device imports detected water and measures groove and detect its water quality and have no abnormally, and this mensuration groove remains in the 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, links and circulation supplying temperature adjustment water with the said temperature adjustment part;
Double-tube heat exchanger, with the specified length part of the importing pipeline of above-mentioned detected water as managing in the above-mentioned detected water mobile, and setting covers the outer tube around the pipe in this and becomes 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, and makes said temperature adjust water and circulate in above-mentioned outer tube; And
The circulating water temperature setter links with above-mentioned circulating path, and has said temperature is adjusted the heating part that water is adjusted to the temperature range of afore mentioned rules.
2. abnormal water quality detecting device imports detected water and measures groove and detect its water quality and have no abnormally, and this mensuration groove remains in the 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, links 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 with said temperature in this heating part, the ingress pipe of this cooling end and above-mentioned detected water links, should detected water as low heat.
3. abnormal water quality detecting device imports detected water and measures groove and detect its water quality and have no abnormally, and this mensuration groove remains in the 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, links 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, and the temperature range that water is adjusted to afore mentioned rules is adjusted with said temperature in this heating part, and this cooling end is linked to the supply water pipe of above-mentioned detected water different system, should supplies with water as low heat.
4. abnormal water quality detecting device imports detected water and measures groove and detect its water quality and have no abnormally, and this mensuration groove remains in the 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, links and circulation supplying temperature adjustment water with the said temperature adjustment part;
Double-tube heat exchanger, with the specified length part of the importing pipeline of above-mentioned detected water as managing in the above-mentioned detected water mobile, and setting covers the outer tube around the pipe in this and becomes 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, and makes 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, and the temperature range that water is adjusted to afore mentioned rules is adjusted with said temperature in this heating part, and this cooling end is linked to the supply water pipe of above-mentioned detected water different system, should supplies with water as low heat.
5. abnormal water quality detecting device imports detected water and measures groove and detect its water quality and have no abnormally, and this mensuration groove remains in the 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, links and circulation supplying temperature adjustment water with the said temperature adjustment part;
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 with said temperature in this heating part, the ingress pipe of this cooling end and above-mentioned detected water links, should detected water as low heat; And
Double-tube heat exchanger, the specified length of above-mentioned circulating path part adjusted in the water mobile as said temperature manage, and be provided with and cover in this outer tube around pipe and to become two-tube structure, make above-mentioned outer tube be linked to the supply water that circulates with the supply water pipe of above-mentioned detected water different system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009042619A JP4693912B2 (en) | 2009-02-25 | 2009-02-25 | Abnormal water quality detection device |
| JP042619/2009 | 2009-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101812402A true CN101812402A (en) | 2010-08-25 |
| CN101812402B CN101812402B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010003233 Expired - Fee Related CN101812402B (en) | 2009-02-25 | 2010-01-11 | Inspecting device for abnormal water quality |
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| Country | Link |
|---|---|
| JP (1) | JP4693912B2 (en) |
| CN (1) | CN101812402B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109415754A (en) * | 2016-06-30 | 2019-03-01 | 苏伊士集团 | For monitoring the process of the concentration of the bacterium in water distribution networks |
| CN110073199A (en) * | 2016-12-12 | 2019-07-30 | 韩电原子力燃料株式会社 | For keeping the device of pressure vessel internal temperature |
| CN114778648A (en) * | 2022-04-24 | 2022-07-22 | 深圳科瑞德健康科技有限公司 | Test system and measurement method for oxidation-reduction potential value of aqueous solution |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2988013B2 (en) * | 1991-06-25 | 1999-12-06 | 富士電機株式会社 | Thermostat for biosensor |
| 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 |
| 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 |
| JP4161111B2 (en) * | 2003-09-16 | 2008-10-08 | メタウォーター株式会社 | How to monitor hazardous substances in environmental water |
| 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 |
-
2009
- 2009-02-25 JP JP2009042619A patent/JP4693912B2/en active Active
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2010
- 2010-01-11 CN CN 201010003233 patent/CN101812402B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109415754A (en) * | 2016-06-30 | 2019-03-01 | 苏伊士集团 | For monitoring the process of the concentration of the bacterium in water distribution networks |
| CN110073199A (en) * | 2016-12-12 | 2019-07-30 | 韩电原子力燃料株式会社 | For keeping the device of pressure vessel internal temperature |
| CN110073199B (en) * | 2016-12-12 | 2022-02-11 | 韩电原子力燃料株式会社 | Device for maintaining the temperature inside a pressure vessel |
| CN114778648A (en) * | 2022-04-24 | 2022-07-22 | 深圳科瑞德健康科技有限公司 | Test system and measurement method for oxidation-reduction potential value of aqueous solution |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101812402B (en) | 2013-12-25 |
| JP4693912B2 (en) | 2011-06-01 |
| JP2010197225A (en) | 2010-09-09 |
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