CN206020398U - Water quality biological toxicity detector - Google Patents

Abstract

The utility model discloses a kind of water quality biological toxicity detector includes chlorine residue processing unit, culture unit and opto-measurement unit, the chlorine residue processing unit includes the chlorine residue detection means being sequentially connected, heater and dechlorination device, the content of chlorine residue in the water of the chlorine residue detection means detection collection, the heater is heated to the water when contents of residual chlorine is higher than predetermined value, and chlorine residue is carried out evicting process from by dechlorination device, the culture unit is used for the mixed culture of the water after process and photobacteria, the opto-measurement unit and the culture unit are detachably connected, and measure the luminous intensity of photobacteria during water and photobacteria are mixed to detect the bio-toxicity of water quality.Water quality biological toxicity detector disclosed in the utility model eliminates impact of the contents of residual chlorine to experimental result in water, can effectively improve the objective and accurate property of water quality biological toxicity detection result.

Description

Water quality biological toxicity detector

【Technical field】

This utility model is related to a kind of water quality inspection technique field, more particularly to a kind of water quality biological toxicity detector.

【Background technology】

With the high speed development of China's economic, the living standard of people is improved constantly, the water quality requirement to domestic water More and more stricter.However, China in Recent Years constantly break out the life that serious water pollution event gives people cause very big Threaten.A kind of method that real-time detection is that effectively pre- waterproof is contaminated is carried out to the bio-toxicity of water, while can also allow people Know whether the water quality of the water in use is contaminated in time.

At present, photobacteria detection method is the most simple and quick effective detection method of aquatic toxicity.Relative to tradition with Water flea, algae or Fish etc. are for fetching the method for detecting aquatic toxicity between study subject for, photobacteria detection method has The unrivaled advantage such as the test period is short, simple to operate, instrument and equipment is simple, testing result is stable.

But, photobacteria is due to the biological nature of its own, a lot of in the detection process of whole aquatic toxicity Factor, such as generally people can add bleaching powder in water in order to kill the antibacterial in water, algae, maintain the peace of circulation Complete stable.But chlorinity (composition of bleaching powder residual) in water, large effect can be caused to testing result.And traditional send out Photobacteria detection method, does not account for these factors, causes the testing result to aquatic toxicity not objective and accurate enough, affects people Judgement to water quality.

【Utility model content】

For the problem for overcoming above-mentioned Conventional luminescent Bacteria Detection method testing result not objective and accurate enough, this utility model offer A kind of water quality biological toxicity detector that can effectively improve the objective and accurate property of water quality biological toxicity detection result.

The water quality biological toxicity detector that the scheme of solution technical problem is to provide includes chlorine residue processing unit, culture unit And opto-measurement unit, the chlorine residue processing unit includes chlorine residue detection means, heater and the dechlorination being sequentially connected Device, the content of chlorine residue in the water of the chlorine residue detection means detection collection, the heater is in contents of residual chlorine higher than predetermined The water is heated during value, and chlorine residue is carried out evicting process from by dechlorination device, after the culture unit is used for processing Water and photobacteria mixed culture, the opto-measurement unit and the culture unit are detachably connected, and in water and send out Photobacteria measures the luminous intensity of photobacteria detecting the bio-toxicity of water quality during being mixed.

Preferably, the chlorine residue detection means includes chlorine residue electrode, and in the chlorine residue electrode pair water, the content of chlorine residue is carried out Detection.

Preferably, the heater includes metallic plate and the pipeline being arranged on metallic plate, described is arranged at metallic plate On pipeline be in multiple tracks bending shape.

Preferably, the chlorine residue processing unit further includes that three-way valve and peristaltic pump, the peristaltic pump are arranged at threeway Connect between valve and chlorine residue detection means and with three-way valve and chlorine residue detection means pipeline respectively, the peristaltic pump is examined to chlorine residue Survey device and pump into water or air.

Preferably, the water quality biological toxicity detector further includes water temperature control unit, the water temperature control unit Connect with the dechlorination device pipeline, the water temperature control unit is carried out the water heated up through the heater at cooling Reason.

Preferably, the water temperature control unit includes the cooling piece being made up of semiconductor alloy, and the cooling piece is to water temperature Water in control unit carries out cooling process.

Preferably, the water quality biological toxicity detector further includes attemperating unit, and the culture unit includes bacterium solution Storehouse and measurement storehouse, the attemperating unit and the bacterium solution storehouse and the connection of measurement storehouse, the attemperating unit is by the temperature in bacterium solution storehouse Control will measure the temperature control in storehouse at 15 DEG C -23 DEG C at 5 DEG C.

Preferably, the water quality biological toxicity detector further includes central control system, the central control system It is electrically connected with chlorine residue processing unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit, control is remaining The automatic operating of chlorine processing unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit.

Compared with prior art, water quality biological toxicity detector provided by the utility model has the advantages that：

1st, the water quality biological toxicity detector for providing includes chlorine processing unit, culture unit and opto-measurement unit, institute State chlorine residue detection means, heater and dechlorination device that chlorine processing unit includes being sequentially connected, the chlorine residue detection means The water chlorinity of detection collection, the heater are heated to the water when chlorinity is higher than predetermined value and are passed through dechlorination Device evicts process from chlorine, and the culture unit is used for the mixed culture of the water after process and photobacteria, the photoelectric measurement Unit and the culture unit are detachably connected, and during water and photobacteria are mixed measure sending out for photobacteria Light intensity is detecting aquatic toxicity.Water due to gathering first passed through chlorine residue processing unit before being cultivated by chlorine residue in water Content is carried out evicting process to chlorine residue when being higher than setting value, the process eliminates impact of the contents of residual chlorine to experimental result in water, The objective and accurate property of water water quality biological toxicity detection result can be effectively improved.

2nd, the chlorine residue detection means includes that chlorine residue electrode, the chlorine residue electrode pair water are detected.Due to adopting chlorine residue In electrode pair water, chlorinity is detected, the reaction sensitivity of chlorine residue electrode detection, accuracy are high, further can increase water quality The accuracy of bio-toxicity testing result.

3rd, heater includes metallic plate and the pipeline being arranged on metallic plate, and the pipeline that is arranged on metallic plate is in Multiple tracks bending shape.The set-up mode increased area of heat transfer to greatest extent so that flow through the water needs in the pipeline Rapidly can be heated to during heating temperature required.

4th, the chlorine processing unit further includes peristaltic pump, and the peristaltic pump and the chlorine residue detection means pipeline connect Connect, and water or air is pumped into chlorine residue detection means.Water or air are conveyed using peristaltic pump, as water is in pump line Flowing, does not contact the pump housing, will not cause secondary pollution to water, it is ensured that the accuracy of water quality biological toxicity detection result.

5th, the water quality biological toxicity detector further includes water temperature control unit, the water temperature control unit and described Dechlorination device pipeline connects, and the water temperature control unit carries out cooling process the water heated up through the heater, so as to In further control of the follow up device to water temperature.The too high or too low impact to water testing result of coolant-temperature gage is the process eliminated, Ensure that the accuracy of water quality biological toxicity detection result.

6th, the water during the cooling piece that is made using semi-conducting material of the water temperature control unit is to water temperature control unit enters Row is preliminary to lower the temperature, and the technology will not pollute environment without cold-producing medium because of leakage of refrigerant；And the Refrigeration Technique is not transported Dynamic component, noiselessness are without abrasion, reliable, easy to maintenance.

7th, provide water quality biological toxicity detector further include attemperating unit, the culture unit include bacterium solution storehouse and The temperature control in bacterium solution storehouse at 5 DEG C, is made by measurement storehouse, attemperating unit and the bacterium solution storehouse and the connection of measurement storehouse, attemperating unit Obtain photobacteria to preserve in the environment of low temperature, photobacteria premature death can be avoided.The further temperature by measurement storehouse Control is at 15 DEG C -23 DEG C so that photobacteria is cultivated at most suitable temperature, will not should be temperature too high or too low The abnormal growth of photobacteria is caused, the accuracy of bio-toxicity of further increasing water quality testing result.

8th, the water quality biological toxicity detector further includes central control system, the central control system and chlorine residue Processing unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit are electrically connected with, and control chlorine residue is processed The automatic operating of unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit so that each unit and dress Put and automatical and efficient can run, reduce manpower demand.

【Description of the drawings】

Fig. 1 is water quality biological toxicity detector structural representation.

Fig. 2 is chlorine residue processing unit structural representation.

Fig. 3 is chlorine residue detection means stereochemical structure exploded perspective view.

Fig. 4 is heater stereochemical structure exploded perspective view.

Fig. 5 is dechlorination device stereochemical structure exploded perspective view.

Fig. 6 is water temperature control unit structural representation.

Fig. 7 is water temperature control unit stereochemical structure exploded perspective view.

Fig. 8 is water sample groove stereochemical structure exploded perspective view.

Fig. 9 is culture unit three-dimensional structural representation.

Figure 10 is sample injection unit structural representation.

【Specific embodiment】

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, further describes to this utility model.It should be appreciated that specific embodiment described herein is only in order to explaining this reality With new, it is not used to limit this utility model.

Photobacteria detects that the ultimate principle of aquatic toxicity is：The water mixing that photobacteria and collection are come is trained Support, in incubation, photobacteria can send the visible ray of specific wavelength under normal physiological conditions.If the water of collection Water quality is contaminated, and water pollutant will suppress or promote the luminous of photobacteria so that the luminous intensity of photobacteria Beyond luminous intensity value range under normally cultivating.Degree and the concentration of pollutant and pollutant that luminous intensity changes The size of toxicity is relevant, therefore, it is possible to pass through to detect that luminous intensity of the photobacteria in incubation just can be obtained indirectly The pollution level of the water quality of photobacteria must be cultivated.

Refer to Fig. 1, inspection of the water quality biological toxicity detector 10 provided by the utility model using above-mentioned photobacteria Survey method detects that to the bio-toxicity of water which includes pretreatment unit 11, water sample groove 12, sample injection unit 13, culture unit 14th, attemperating unit 15, opto-measurement unit 16, waste disposal unit 17 and CPU 18.The pretreatment unit 11 and need gather water sample water system pipeline connection, water is acquired, and to gather water in chlorine residue content and The water temperature of water is processed, by the temperature control of the content of chlorine residue in water and water body within the value range for setting.Described Pretreatment unit 11 and the connection of 12 pipeline of water sample groove, pretreatment unit 11 are completed in water after the process of contents of residual chlorine and water temperature Water sample groove 12 is injected water into through pipeline.The water quality biological toxicity detector 10 further includes the horizontal panel beating being detachably connected 19a and vertical panel beating 19b, the water sample groove 11 and the culture unit 14 are separately independently arranged on horizontal panel beating 19a, described Sample injection unit 13 is arranged on vertical panel beating 19b, and sample injection unit 13 obtains water sample from water sample groove 11 and neutralizes to culture unit 14 Photobacteria is mixed.The attemperating unit 15 is arranged at below culture unit 14, the temperature of control culture unit 14. The side wall of the opto-measurement unit 16 and the culture unit 14 is detachably connected, and carries out photobacteria training in culture unit 14 The luminous quantity of photobacteria is measured in foster process.The waste disposal unit 17 and the culture unit 14 pipeline connection, light After electrical measurement unit 16 completes detection, the waste liquid for cultivating the cleaning of unit 14 is inactivated through piping entrance waste disposal unit 17 Discharge after process, will not be to environment.

Further, the water quality biological toxicity detector 10 also includes a CPU 18, the centre Reason unit 18 includes a central control system and a data acquisition and analysis system.The central control system and pretreatment list At unit 11, water temperature control unit 12, sample injection unit 13, culture unit 14, attemperating unit 15, opto-measurement unit 16 and waste liquid Reason unit 17 is electrically connected with, control pretreatment unit 11, water temperature control unit 12, sample injection unit 13, culture unit 14, temperature control dress The automatic operating for putting 15, opto-measurement unit 16 and waste disposal unit 17 enables the water quality biological toxicity detector 10 Enough fully automatically the water water quality of collection is detected, manpower demand is reduced.

The data acquisition and analysis system is used for the collection and analysis of detection data, and its storage inside has the reality of prior typing Test data, gather the detection data and prior typing for coming experimental data compare can draw water pollution degree and The substantially species of pollutant, (be for example belonging to heavy metal pollution and still fall within microorganism pollution), so that form a history number According to record, the access of the judgement to this area's water quality and history water pollution is convenient for people to.

Specifically, the inside annexation and operation of whole bio-toxicity detector will be done further in detail below Solution.

Fig. 2 is referred to, aforementioned pretreatment unit 11 includes chlorine residue processing unit 11a, chlorine residue processing unit 11a is used for examining Survey the content of chlorine residue in gathered water, and when in water contents of residual chlorine exceed contents of residual chlorine inside chlorine residue processing unit 11a In range of set value, such as be more than 0.1/L when to water in chlorine residue carry out evicting process from so that in water, the content of chlorine residue is in Within setting value.After its reason is that water carries out disinfection through bleaching powder, (bleaching powder has to remain a certain amount of chlorine residue in water quality Effect composition), large effect can be produced to the detection of photobacteria cultivation results when contents of residual chlorine is too high, so needing to collection The water for coming will first carry out contents of residual chlorine detection, and chlorine residue be carried out evicting process from when in water, contents of residual chlorine exceedes setting value, from And impact when contents of residual chlorine is too high in exclusion water to measurement result, improve the objective and accurate property of aquatic toxicity measured value.

The chlorine residue processing unit 11a includes three-way valve 111, peristaltic pump 112, chlorine residue detection means 113, heater 114th, dechlorination device 115, the first valve 116 and the second valve 117.The three-way valve 111, peristaltic pump 112, chlorine residue detection means 113rd, heater 114, dechlorination device 115 are attached with pipeline successively according to water treatment process.Further, the dechlorination The upper end of device 115 is provided with an outlet interface 1153, and the side wall lower ends of dechlorination device 115 are provided with a water outlet mouthpiece 1155, the outlet interface 1153 connects through pipeline and second valve 117, and the water outlet mouthpiece 1155 is through pipeline and described One valve 116 connects.

The three-way valve 111 includes first interface 1111, second interface 1112 and the 3rd interface 1113.Described first connects Mouth 1111 and the waterpipe connection for needing to gather water, second interface 1112 are vented, and the 3rd interface 1113 is through pipeline with peristaltic pump 112 It is connected.The peristaltic pump 112 includes that two interfaces, one of interface connect with the 3rd interface 1113 of aforementioned three-way valve 111, Another interface connects with the chlorine residue detection means 113 through piping.

Fig. 2 and Fig. 3 is seen also, chlorine residue detection means 113 is used for the content of chlorine residue in the water for detect collection, and which includes Detection tank 1131, detection cover 1132 and chlorine residue electrode 1133.The detection tank 1131 is the open cylinder in a upper end Staving, the detection cover 1132 and the detection tank 1131 are detachably connected to form the sealing entirety in addition to interface.Should A water inlet interface 1134 and a chlorine residue electrode interface 1135, the water inlet interface 1134 are offered on detection cover 1132 Connect through pipeline and aforementioned peristaltic pump 112, the probe segment of the chlorine residue electrode 1133 stretches into inspection through chlorine residue electrode interface 1135 Survey inside tank 1131.Chlorine residue electrode 1133 and premise central control system are electrically connected with, and water are entered by central control system control Row detection, and the data for detecting are transferred to central control system.In 113 detection process of chlorine residue detection means, water is through water inlet The injection detection tank 1131 of interface 1134, in the probe segment immersion water of chlorine residue electrode 1133, (chlorine residue is present in water for secondary chlorine residue acid Form) electric current is formed in electrode surface, the size of current is directly proportional to residual chlorine concentration in solution, then by the size of measurement electric current It is assured that the concentration of chlorine residue in solution.Be quick on the draw during chlorine residue electrode detection, accuracy high, further can improve luminous The accuracy of germ experiment testing result.The sidewall bottom of the detection tank 1131 is further opened with a water outlet mouthpiece 1136, institute State water outlet mouthpiece 1136 to connect through pipeline and aforementioned heater 114.

Fig. 2 and Fig. 4 is seen also, the heater 114 is used for heating when needing to heat to the water for being gathered, Which includes the first metallic plate 1141, the second metallic plate 1142, pipeline 1143, heating plate 1144 and protection board 1145.Described One metallic plate 1141 includes two planes for supporting or opposing, and opens up and form multiple tracks bending just like the pipeline 1143 in one of plane The groove 1146 of shape, the pipeline 1143 are positioned in the groove 1146, subsequent first metallic plate 1141 and the second metal Plate 1142 opens up fluted 1146 one side and is fastened with bolt and pipeline 1143 is folded in the first metallic plate 1141 and In two metallic plates 1142.The heating plate 1144 is arranged at the back that first metallic plate 1141 opens up groove 1146 to be used for The pipeline 1143 being contained in groove 1146 is heated, the protection board 1145 and first metallic plate 1141 open up recessed The back bolt of groove 1146 is fastened and forms protection to heating plate 1144.Heating plate 1144 and premise central processing unit 18 Central control system be electrically connected with, control whether to heat the water in pipeline 1143 by central control system.The pipe Road 1143 includes a water inlet 1147 and an outlet 1148, and water inlet 1147 is through pipeline and aforementioned chlorine residue detection means 113 water outlet mouthpiece 1136 connects, and outlet 1148 aforementioned connects through pipeline and except chlorine residue device 115.

As the part that the pipeline 1143 is arranged at 1141 groove 1146 of the first metallic plate forms multiple tracks bending, maximum limit Area of heat transfer increased so that flow through degree Degree.

Fig. 2 and Fig. 5 is seen also, dechlorination device 115 includes dechlorinate tank 1151 and dechlorination cover 1152, the dechlorination tank 1151 is the open cylindrical body in a upper end, and the dechlorination cover 1152 and the dechlorination tank 1151 are detachably connected to be formed One sealed shell of tank in addition to interface.Dechlorination cover 1152 offers an outlet interface 1153, and the outlet interface 1153 is passed through Pipeline and aforementioned second valve 117 connect.The bottom of dechlorination 1151 side wall of tank offers a water inlet interface 1154 and a water outlet Interface 1155, water inlet interface 1154 connect through the outlet 1148 of pipeline and aforementioned tubular duct 1143, and water outlet mouthpiece 1155 is through pipeline Connect with aforementioned first valve 116.

Fig. 6 and Fig. 7 is referred to, aforementioned pretreatment unit 11 further includes water temperature control unit 11b, the water temperature control Unit 11b is used for need to carry out preliminary cooling process through the heated water of aforementioned heater 114, in order to follow up device Further control to water temperature.Its reason is training of the water for gathering after chlorine residue processing unit 11a process for photobacteria Support, and the most suitable cultivation temperature of most photobacteria between 15 DEG C -23 DEG C (with specific reference to the photobacteria for being adopted not Different together), the too high or too low dead accuracy for affecting measurement result that can cause photobacteria of temperature.The water of collection is through front About 40 DEG C of water temperature after the heating of heater 114 is stated, so that preliminary cooling process is carried out to water temperature.

Water temperature control unit 11b includes shell 1181, fixture 1182, tank body 1183, cover 1184, cooling piece 1185 and cover plate 1186.A breach 1187 is offered on the side wall of the shell 1181, and fixture 1182 is through breach 1187 It is positioned in shell 1181, and is fastened with bolt with shell 1181, fixture 1182 and shell 1181 forms one after fastening The open staving in upper end.1183 upper end of the tank body is open, and the tank body 1183 is positioned in the staving, 1184 He of subsequent cover Shell 1181 is fastenedly connected and tank body 1183 is sealed.The fixture 1182 open up one the same with 1185 shape of cooling piece Groove 1188, the cooling piece 1185 is positioned in the groove 1188, and the cover plate 1186 and fixture 1182 are offered The one side of groove 1188 is fastened, and forms protection to cooling piece 1185.In cooling piece 1185 and premise central processing unit 18 Centre control system is electrically connected with, and the water in tank body 1183 is lowered the temperature by central control system control, on the tank body 1183 A temperature probe (not shown) is additionally provided with, the probe and the central control system are electrically connected with.When temperature probe is examined When the temperature for measuring the water in tank body 1183 is higher than setting value, central control system control cooling piece 1185 is operated, the fixation Part 1182 and 1183 material of tank body are metal, and cooling piece 1185 is lowered the temperature to tank body 1183 through fixture 1182, so as to Connect and cooling is played a part of to the water in tank body 1183, by water management in range of set value, with sharp subsequent handling to luminous thin The culture of bacterium.A water inlet interface 1189 and a water outlet mouthpiece 1190, water inlet interface 1189 is further opened with cover 1184 Connect through pipeline and aforementioned first valve 116, water outlet mouthpiece 1190 connects through pipeline and aforementioned water sample groove 11.

The cooling piece 1185 is made up of semiconductor alloy piece, and the cooling piece 1185 is by being powered to the water in tank body 1183 Lowered the temperature, without cold-producing medium, environment will not be polluted because of leakage of refrigerant；And the Refrigeration Technique does not have moving component, Noiselessness, without abrasion, reliable, easy to maintenance.

Fig. 2-7 are seen also, when pretreatment unit 11 works, the second of central control system control three-way valve 111 connects Mouth 1112 and the second valve 117 are closed, and the first interface 1111 of three-way valve 111 and the first valve 116 are opened.Water is through peristaltic pump To chlorine residue detection means 113, the contents of residual chlorine of the water of 113 pairs of collections of chlorine residue detection means is measured 112 pumps.Situation one：When Chlorine residue detection means 113 measures the content of the water chlorine residue of collection in range of set value, when being such as less than equal to 0.1/L, this When central control system control heating plate 1144 do not work, after the heated device 114 of current and dechlorination device 115 inject water temperature control Unit 11b processed, central control system control water temperature control unit 11b and the water temperature of the water for injecting are processed to set point quilt, than As in the range of 15 DEG C -23 DEG C.Situation two：When chlorine residue detection means 113 detects the content of the water chlorine residue of collection beyond setting value, The first interface 1111 and the first valve 116 of now central control system control three-way valve 111 is closed, and the second of three-way valve 111 Interface 1112 and the second valve 117 are opened, and peristaltic pump 112 pumps into air, and central control system control in not stopping to pipeline Heating plate 1144 to bring into operation and be heated to 40 DEG C or so by the water in pipeline.Now, in dechlorination device 115, due to coolant-temperature gage Chlorine residue (in water in the form of secondary chlorine residue acid) extremely unstable in water is raised, from water will be decomposed out with continuous pump The air for entering is discharged through the second valve 117, within the content for detecting chlorine residue in water up to chlorine residue detector unit 113 is in setting value When, the first interface 1111 and the first valve 116 of central control system control three-way valve 111 are opened, and the second of three-way valve 111 connects Mouth 1112 and the second valve 117 are closed, and heating plate 1144 quits work, and subsequently carries out the flow process of situation one, until chlorine residue is detected Device 113 detects the content of chlorine residue in water again beyond setting value, carries out the flow process of situation two, with this alternately, so as to The contents of residual chlorine for passing through the water of chlorine residue processing unit 11a can be controlled within the value range for setting.

The chlorine residue processing unit 11a is conveyed to water or air using peristaltic pump 112, as peristaltic pump 112 is right During water is conveyed, only in pump line, flowing is not exposed to the pump housing to water, and peristaltic pump 112 will not cause secondary dirt to water Dye, it is ensured that accuracy of the water quality biological toxicity detector 10 for being provided to water testing result.

Fig. 8 is referred to, water enters water sample groove 12, the water sample groove through pipeline after the process of pretreatment unit 11 12 include saline slot 121, the first water sample groove 122 and the second water sample groove 123.The saline slot 121, the first water sample groove 122 with And second water sample groove 123 be separated from each other and be independently arranged, do not mix.Saline is placed in saline slot 121, and the saline is used for adjusting to be sent out Osmotic pressure in photobacteria incubation so that the incubation of photobacteria is normally carried out.The first water sample groove 122 is placed The water sample of collection, the second water sample groove 123 place the distilled water without pollutant, and the distilled water is used for the culture of photobacteria, Whether the experimental result of the water sample that its object is to and gather does blank with test experience in normal condition.The water sample Groove 12 also includes that one piece of cover plate 124, the covering version 124 are used for covering water sample groove 12, prevents water sample in experimentation from receiving To secondary pollution, two rounds 1241 in the cover plate 124, are offered, the hole 1241 is used for extraction of the probe tube to water sample.

Fig. 9 is referred to, the culture unit 13 is used for the preservation of photobacteria bacterium solution and mixed culture, and which is internally provided with One bacterium solution storehouse (not shown) and a measurement storehouse (not shown), the bacterium solution storehouse is separately independently arranged with measurement storehouse.The bacterium Liquid storehouse is used for the cryopreservation of photobacteria, reduces the activity of photobacteria, it is to avoid photobacteria premature death.The measurement storehouse The measurement of mixing and photobacteria luminous intensity for the recovery of photobacteria, water sample and saline.The culture unit 13 enters One step includes that a cover plate 131, the cover plate 131 are used for covering bacterium solution storehouse and measurement storehouse, reduces the secondary pollution of bacterium solution.Institute State and on cover plate 131, offer two rounds 132, the hole 132 is used for probe tube and extracts photobacteria bacterium solution and saline and water sample It is mixed in measurement storehouse.A sliding panel 133 is additionally provided with the cover plate 131, and the sliding panel 133 is used for light electric-examination Survey unit 16 and the hole 132 is covered when photobacteria luminous intensity is detected so that measurement storehouse forms a dark sky Between, prevent the light measured outside storehouse from entering measurement storehouse and have influence on measurement result.

Figure 10 is referred to, and the sample injection unit 14 is used for saline and water sample being extracted in water sample groove 12, while in bacterium solution storehouse Middle extraction bacterium solution is mixed in measurement storehouse, it include a horicontal motion mechanism 141, vertically movable mechanism 142 with And the probe tube 143 being arranged in vertically movable mechanism 142.142 He of the horicontal motion mechanism 141 and vertically movable mechanism The central control system of CPU 18 is electrically connected with, and by central control system control motion, the probe tube 143 is in water Lower saline, water sample and the bacterium solution extracted of the cooperation drive of flat motion 141 and vertically movable mechanism 142 is on culture unit 13 It is mixed.

Preserved under 5 DEG C or so of ambient temperature as photobacteria needed to be positioned over before being cultivated, prevented Photobacteria premature death, additionally, the general cultivation temperature of the photobacteria is (with specific reference to selected between 15 DEG C -23 DEG C The species of the photobacteria that selects and different), the too high or too low abnormal growth that can all cause photobacteria of temperature causes measurement result Inaccurate.So, the culture unit 13 need to connect an attemperating unit 15, and the attemperating unit 15 is used for protecting photobacteria The temperature control that deposits is at 5 DEG C or so, and first the control of the cultivation temperature of photobacteria is extended luminous between 15 DEG C -23 DEG C The resting period of antibacterial, second so that photobacteria is cultivated at normal temperature, impact of the temperature to measurement result is excluded, Improve the accuracy of measurement result.

Specifically, the attemperating unit 15 includes that being respectively arranged at bacterium solution storehouse (is schemed not with the temperature probe inside measurement storehouse Show) and respectively with bacterium solution storehouse and measurement storehouse fix semiconductor alloy piece (not shown).The attemperating unit 15 and aforementioned The central control system of central control unit 18 is electrically connected with, the temperature in the temperature probe detection bacterium solution storehouse and measurement storehouse, And the signal control that detected temperature transfer is transmitted according to temperature probe to central control system, the central control system Semiconductor alloy piece processed is heated with measurement storehouse to bacterium solution storehouse or is freezed, by the temperature control in bacterium solution storehouse and measurement storehouse above-mentioned Within setting value and set point value, so as to exclude impact of the temperature to experimental result, the accuracy of experimental data is improved.

The opto-measurement unit 16 is used for the luminous quantity for detecting photobacteria antibacterial in incubation.This utility model In opto-measurement unit 16 adopt photomultiplier tube, the photomultiplier tube and premise central processing unit 18 are electrically connected with, The side wall in aforementioned measurement storehouse offers hole, and the photomultiplier tube is extend into inside measurement storehouse through the hole, the photoelectricity times Increasing pipe includes a negative electrode, is taken in the energy of the photon of photobacteria transmitting by negative electrode and is converted into electronics, and which changes effect Rate (cathode sensitivity) with the photon of incident illumination number and change, such that it is able to arrive photobacteria according to signal of telecommunication indirect detection Luminous quantity, and the luminous quantity data for detecting are transferred to CPU 18 by the form of the signal of telecommunication.

Compared with prior art, water quality biological toxicity detector provided by the utility model has the advantages that：

1st, the water quality biological toxicity detector for providing includes chlorine processing unit, culture unit and opto-measurement unit, institute State chlorine residue detection means, heater and dechlorination device that chlorine processing unit includes being sequentially connected, the chlorine residue detection means The water chlorinity of detection collection, the heater are heated to the water when chlorinity is higher than predetermined value and are passed through dechlorination Device evicts process from chlorine, and the culture unit is used for the mixed culture of the water after process and photobacteria, the photoelectric measurement Unit and the culture unit are detachably connected, and during water and photobacteria are mixed measure sending out for photobacteria Light intensity is detecting aquatic toxicity.Water due to gathering first passed through chlorine residue processing unit before being cultivated by chlorine residue in water Content is carried out evicting process to chlorine residue when being higher than setting value, the process eliminates impact of the contents of residual chlorine to experimental result in water, The objective and accurate property of water water quality biological toxicity detection result can be effectively improved.

2nd, the chlorine residue detection means includes that chlorine residue electrode, the chlorine residue electrode pair water are detected.Due to adopting chlorine residue In electrode pair water, chlorinity is detected, the reaction sensitivity of chlorine residue electrode detection, accuracy are high, further can increase water quality The accuracy of bio-toxicity testing result.

3rd, heater includes metallic plate and the pipeline being arranged on metallic plate, and the pipeline that is arranged on metallic plate is in Multiple tracks bending shape.The set-up mode increased area of heat transfer to greatest extent so that flow through the water needs in the pipeline Rapidly can be heated to during heating temperature required.

4th, the chlorine processing unit further includes peristaltic pump, and the peristaltic pump and the chlorine residue detection means pipeline connect Connect, and water or air is pumped into chlorine residue detection means.Water or air are conveyed using peristaltic pump, as water is in pump line Flowing, does not contact the pump housing, will not cause secondary pollution to water, it is ensured that the accuracy of water quality biological toxicity detection result.

5th, the water quality biological toxicity detector further includes water temperature control unit, the water temperature control unit and described Dechlorination device pipeline connects, and the water temperature control unit carries out cooling process the water heated up through the heater, so as to In further control of the follow up device to water temperature.The too high or too low impact to water testing result of coolant-temperature gage is the process eliminated, Ensure that the accuracy of water quality biological toxicity detection result.

6th, the water during the cooling piece that is made using semi-conducting material of the water temperature control unit is to water temperature control unit enters Row is preliminary to lower the temperature, and the technology will not pollute environment without cold-producing medium because of leakage of refrigerant；And the Refrigeration Technique is not transported Dynamic component, noiselessness are without abrasion, reliable, easy to maintenance.

7th, provide water quality biological toxicity detector further include attemperating unit, the culture unit include bacterium solution storehouse and The temperature control in bacterium solution storehouse at 5 DEG C, is made by measurement storehouse, attemperating unit and the bacterium solution storehouse and the connection of measurement storehouse, attemperating unit Obtain photobacteria to preserve in the environment of low temperature, photobacteria premature death can be avoided.The further temperature by measurement storehouse Control is at 15 DEG C -23 DEG C so that photobacteria is cultivated at the most suitable temperature, will not should be that temperature is too high or too low to be made Into the abnormal growth of photobacteria, the accuracy of bio-toxicity of further increasing water quality testing result.

8th, the water quality biological toxicity detector further includes central control system, the central control system and chlorine residue Processing unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit are electrically connected with, and control chlorine residue is processed The automatic operating of unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit so that each unit and dress Put and automatical and efficient can run, reduce manpower demand.

Preferred embodiment of the present utility model is the foregoing is only, not in order to limit this utility model, all at this Any modification that is made within the principle of utility model, equivalent and improvement etc. all should include protection domain of the present utility model Within.

Claims (8)

1. a kind of water quality biological toxicity detector, it is characterised in that：Including chlorine residue processing unit, culture unit and photoelectric measurement Unit, the chlorine residue processing unit include chlorine residue detection means, heater and the dechlorination device being sequentially connected, the chlorine residue The content of chlorine residue in the water of detection means detection collection, the heater are entered to the water when contents of residual chlorine is higher than predetermined value Row heating, and chlorine residue is carried out evicting process from by dechlorination device, the culture unit is used for the water after process and photobacteria Mixed culture, the opto-measurement unit and the culture unit are detachably connected, and are mixed in water and photobacteria During measure the luminous intensity of photobacteria detecting the bio-toxicity of water quality.

2. water quality biological toxicity detector as claimed in claim 1, it is characterised in that：The chlorine residue detection means includes chlorine residue Electrode, in the chlorine residue electrode pair water, the content of chlorine residue is detected.

3. water quality biological toxicity detector as claimed in claim 1, it is characterised in that：The heater include metallic plate and The pipeline being arranged on metallic plate, the pipeline being arranged on metallic plate are in multiple tracks bending shape.

4. water quality biological toxicity detector as claimed in claim 2, it is characterised in that：The chlorine residue processing unit is further wrapped Include three-way valve and peristaltic pump, the peristaltic pump be arranged between three-way valve and chlorine residue detection means and respectively with three-way valve and remaining Chlorine detection means pipeline connects, and the peristaltic pump pumps into water or air to chlorine residue detection means.

5. water quality biological toxicity detector as claimed in claim 1, it is characterised in that：Further include water temperature control unit, The water temperature control unit and dechlorination device pipeline connection, the water temperature control unit is through heater intensification Water carry out cooling process.

6. water quality biological toxicity detector as claimed in claim 5, it is characterised in that：The water temperature control unit is included by half The cooling piece that conductor metal is made, the cooling piece carry out cooling process to the water in water temperature control unit.

7. water quality biological toxicity detector as claimed in claim 5, it is characterised in that：Attemperating unit is further included, described Culture unit includes bacterium solution storehouse and measurement storehouse, the attemperating unit and the bacterium solution storehouse and the connection of measurement storehouse, the temperature control dress Put the temperature control in bacterium solution storehouse at 5 DEG C, by the temperature control in measurement storehouse at 15 DEG C -23 DEG C.

8. water quality biological toxicity detector as claimed in claim 7, it is characterised in that：Further include central control system, The central control system and chlorine residue processing unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit Be electrically connected with, control chlorine residue processing unit, water temperature control unit, culture unit, opto-measurement unit and attemperating unit from Dynamic operating.