Maintenance-free online DPD residual chlorine instrument

Abstract

The utility model relates to the technical field of water quality detection, in particular to a maintenance-free online DPD residual chlorine analyzer which comprises two groups of detection inlets arranged at the bottom of a measuring chamber, the two groups of detection inlets respectively supply reagents and water samples to the measuring chamber, a first input cabin is arranged at the input end of a water sample pump to respectively supply the water samples or cleaning fluid to the water sample pump, and a second input cabin is arranged at the input end of the water sample pump. The silicon photocell is arranged on one side of the measuring chamber, two groups of detection inlets are formed in the bottom of the measuring chamber, and the two groups of detection inlets can be respectively connected with a reagent pump and a water sample pump so as to supply a reagent and a water sample into the measuring chamber, so that residual chlorine detection of the water sample is met; the cleaning cabin can be matched with the water sample pump to clean the measuring chamber after measurement, so that components after color development of a detection sample are remained in the measuring chamber, and the intensity of light penetrating through the measuring chamber can be detected through the silicon photocell beside the measuring chamber.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection technical field especially relates to a maintenance free online DPD residual chlorine appearance. BACKGROUND

[0002] In order to guarantee the content of residual chlorine, need to detect the residual chlorine in water, in the conventional residual chlorine detection instrument, adopt the emission blue light to penetrate water quality, by contrast light receiving signal, through the data processing of signal mainboard, obtain residual chlorine content, and the residual chlorine instrument of online DPD colorimetry adopts double pump to add buffer solution and adjusts PH, indicator to carry out coloration, detects residual (total) chlorine through spectrophotometry, but the component after coloration will be attached on the optical window after using for a period of time, leading to the deviation of measured value, need to be regularly operated and maintained, wipe the lens position, waste manpower cost, therefore, need a maintenance free online DPD residual chlorine appearance to solve the problem that the component after coloration will be attached on the optical window. UTILITY MODEL CONTENT

[0003] In view of the above-mentioned defects of prior art, the utility model aims at providing a maintenance free online DPD residual chlorine appearance to solve the problem that the component after coloration will be attached on the optical window.

[0004] To achieve the above object and other related objects, the utility model provides the following technical scheme:

[0005] A maintenance free online DPD residual chlorine appearance, comprising:

[0006] The measuring chamber is provided with two groups of detection inlets at the bottom, and the two groups of detection inlets are respectively connected with reagent pumps and water sample pumps to supply reagents and water samples into the measuring chamber.

[0007] The water sample pump input end is provided with a first input cabin, and the first input cabin is provided with a water sample cabin and a cleaning cabin to respectively supply water samples or cleaning liquid to the water sample pump.

[0008] The silicon photocell is arranged on one side of the measuring chamber, and a modulated LED light source is arranged on the other side of the silicon photocell.

[0009] The above technical scheme is realized, two groups of detection inlets are arranged at the bottom of the measuring chamber, and the two groups of detection inlets are respectively connected with reagent pumps and water sample pumps to supply reagents and water samples into the measuring chamber, so as to meet the residual chlorine detection of water samples, the water sample cabin and the cleaning cabin are arranged in the first input cabin, the cleaning cabin can be used to clean the measured measuring chamber after measurement, so as to avoid the residual components after coloration of the detection sample in the measuring chamber, and the intensity of the light penetrating through the measuring chamber can be detected through the silicon photocell arranged beside the measuring chamber.

[0010] In an embodiment of the utility model, upper electromagnet is arranged on the upper side of the measuring chamber, lower electromagnet is arranged on the lower side of the measuring chamber, stirring magnet is arranged in the measuring chamber, and the upper electromagnet and the lower electromagnet are powered alternately to control the stirring magnet to stir up and down.

[0011] The above technical solution is realized, the reagent and water sample entering the measuring chamber from the detection inlet are concentrated on the bottom of the measuring chamber, the stirring magnet is driven by the upper electromagnet and the lower electromagnet to stir up and down, the detection liquid in the measuring chamber can be mixed better, and the test efficiency and the test precision are improved.

[0012] In an embodiment of the utility model, the reagent pump is a double-channel reagent pump.

[0013] The above technical solution is realized, and the double-channel reagent pump can supply buffer solution and indicator into the measuring chamber to ensure the mixing stability of the detection liquid in the measuring chamber.

[0014] In an embodiment of the utility model, modulation LED light source is further arranged beside the measuring chamber opposite the silicon photocell, and the modulation LED light source is arranged towards the silicon photocell.

[0015] The above technical solution is realized, the LED is modulated by using the circuit, the interference of external light on measurement can be effectively reduced, and the intensity precision of the detection light at the silicon photocell end is ensured.

[0016] In an embodiment of the utility model, a three-way electromagnetic valve is further arranged between the water sample pump and the first input cabin, the normally open port of the three-way electromagnetic valve is connected with the water sample cabin, and the normally closed port of the three-way electromagnetic valve is connected with the cleaning cabin.

[0017] The above technical solution is realized, the normally open port of the three-way electromagnetic valve is used to continuously input water sample into the measuring chamber during detection, the stability and reliability of detection are ensured, when the measuring chamber needs to be cleaned, the normally closed port of the three-way electromagnetic valve is used to supply cleaning liquid into the cleaning cabin to complete the cleaning action of the measuring chamber, so that the components after the development of the detection sample remaining in the measuring chamber are avoided, the cleanliness of the measuring chamber is ensured, and the detection precision of the measuring chamber by the silicon photocell is ensured.

[0018] In an embodiment of the utility model, a waste liquid outlet is further arranged on the upper side of the measuring chamber, and a waste liquid pump is arranged at the waste liquid outlet to discharge the waste liquid in the measuring chamber.

[0019] The above technical solution is realized, the liquid in the measuring chamber can be discharged in time by the waste liquid outlet, and the detection precision and reliability are ensured.

[0020] As described above, the utility model discloses a kind of maintenance-free online DPD residual chlorine instruments, with following beneficial effects: by being provided with two groups of detection entrances in the bottom of measuring chamber, two groups of detection entrances can be connected with reagent pump and water sample pump respectively to supply reagent and water sample in measuring chamber, to meet the residual chlorine detection of water sample, by being provided with water sample cabin and cleaning cabin in the first input cabin, water sample pump can be used to clean the measured measuring chamber after measurement, to avoid the component of residual detection sample after color development in measuring chamber, by the silicon photocell beside measuring chamber, the intensity of light that can be detected through measuring chamber. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is shown as the structure schematic diagram of maintenance-free online DPD residual chlorine instrument disclosed in the utility model embodiment.

[0022] Element number explanation

[0023] 1, measuring chamber;2, reagent pump;3, water sample pump;4, first input cabin;5, water sample cabin;6, cleaning cabin;7, silicon photocell;8, upper electromagnet;9, lower electromagnet;10, stirring magnet;11, modulated LED light source;12, three-way electromagnetic valve;13, waste liquid outlet;14, detection entrance. DETAILED DESCRIPTION

[0024] The following specific embodiments illustrate the implementation of the utility model, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. It should be noted that the following examples and features in examples can be combined with each other without conflict.

[0025] Please refer to Figure 1 The utility model provides a kind of maintenance-free online DPD residual chlorine instrument, including the bottom of measuring chamber 1 setting two groups of detection entrances 14, two groups of detection entrances 14 are connected with reagent pump 2 and water sample pump 3 respectively to supply reagent and water sample in measuring chamber 1, the input end of water sample pump 3 is provided with first input cabin 4, first input cabin 4 is provided with water sample cabin 5 and cleaning cabin 6 to supply water sample or cleaning fluid to water sample pump 3 respectively, silicon photocell 7 is located in one side of measuring chamber 1, there is still modulated LED light source 11 in the side of measuring chamber 1 opposite to silicon photocell 7, and modulated LED light source 11 is provided towards silicon photocell 7.

[0026] The two groups of detection inlets 14 are arranged at the bottom of the measuring chamber 1, and the reagent pump 2 and the water sample pump 3 are respectively connected with the two groups of detection inlets 14, so as to supply the reagent and the water sample into the measuring chamber 1, thereby satisfying the residual chlorine detection of the water sample. The water sample cabin 5 and the cleaning cabin 6 are arranged in the first input cabin 4, and the cleaning cabin 6 is matched with the water sample pump 3 to clean the measuring chamber 1 after measurement, thereby avoiding the components after the color development of the residual detection sample in the measuring chamber 1. The silicon photocell 7 is arranged beside the measuring chamber 1, and the intensity of the light passing through the measuring chamber 1 can be detected.

[0027] The upper electromagnet 8 is arranged at the upper side of the measuring chamber 1, the lower electromagnet 9 is arranged at the lower side of the measuring chamber 1, and the stirring magnet 10 is arranged in the measuring chamber 1. The upper electromagnet 8 and the lower electromagnet 9 are alternately powered to control the up-and-down stirring of the stirring magnet 10.

[0028] Since the detection inlets 14 are arranged at the bottom of the measuring chamber 1, the reagent and the water sample entering the measuring chamber 1 through the detection inlets 14 are concentrated at the bottom of the measuring chamber 1. The up-and-down stirring of the stirring magnet 10 driven by the upper electromagnet 8 and the lower electromagnet 9 can better mix the detection liquid in the measuring chamber 1, thereby improving the test efficiency and the test accuracy.

[0029] The reagent pump 2 is a double-channel reagent pump 2, which can supply the buffer and the indicator into the measuring chamber 1, so as to ensure the mixing stability of the detection liquid in the measuring chamber 1.

[0030] The modulated LED light source 11 is arranged beside the measuring chamber 1 opposite to the silicon photocell 7, and the modulated LED light source 11 is arranged towards the silicon photocell 7. The modulated LED light source 11 is arranged beside the measuring chamber 1 opposite to the silicon photocell 7, and the intensity of the detection light at the silicon photocell 7 can be accurately ensured by using the circuit to modulate the LED and effectively reducing the interference of the external light on the measurement.

[0031] The three-way electromagnetic valve 12 is further arranged between the water sample pump 3 and the first input cabin 4. The normally open port of the three-way electromagnetic valve 12 is connected with the water sample cabin 5, and the normally closed port of the three-way electromagnetic valve 12 is connected with the cleaning cabin 6. The normally open port of the three-way electromagnetic valve 12 is used to continuously supply the water sample into the measuring chamber 1 during the detection, thereby ensuring the stability and reliability of the detection. When the measuring chamber 1 needs to be cleaned, the cleaning liquid is supplied into the cleaning cabin 6 through the normally closed port of the three-way electromagnetic valve 12, so as to complete the cleaning action of the measuring chamber 1, thereby avoiding the components after the color development of the residual detection sample in the measuring chamber 1, ensuring the cleanliness of the measuring chamber 1, and thereby ensuring the detection accuracy of the silicon photocell 7 to the measuring chamber 1.

[0032] The measuring chamber 1 is further provided with a waste liquid outlet 13 on the upper side, and a waste liquid pump is arranged at the waste liquid outlet 13 to discharge the waste liquid in the measuring chamber 1, so that the liquid in the measuring chamber 1 can be conveniently discharged in time, and the accuracy and reliability of detection are ensured.

[0033] The utility model discloses a detection inlet is set up in two groups at the bottom of the measuring chamber, can utilize two groups's detection inlet respectively connected with reagent pump and water sample pump to supply reagent and water sample to the measuring chamber, to satisfy the residual chlorine detection to water sample, through being provided with water sample cabin and cleaning cabin in the first input cabin, can utilize the cleaning cabin to cooperate water sample pump and clean the measured measuring chamber, to avoid the component of the detection sample after developing in the measuring chamber, through the silicon photocell beside the measuring chamber, can detect the intensity of the light that passes through the measuring chamber.

[0034] The above examples only illustrate the principles and effects of the utility model, and are not used to limit the utility model. All equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A maintenance-free online DPD residual chlorine meter, characterized in that, It comprises: a measuring chamber, two groups of detection inlets are arranged at the bottom of the measuring chamber, the two groups of detection inlets are respectively connected with a reagent pump and a water sample pump to supply reagent and water sample into the measuring chamber; a first input cabin is arranged at the input end of the water sample pump, a water sample cabin and a cleaning cabin are arranged in the first input cabin to respectively supply water sample or cleaning liquid to the water sample pump; a silicon photocell is arranged at one side of the measuring chamber.

2. The maintenance-free in-line DPD residual chlorine meter according to claim 1, characterized in that: an upper electromagnet is arranged at the upper side of the measuring chamber, a lower electromagnet is arranged at the lower side of the measuring chamber, and a stirring magnet is arranged in the measuring chamber, the upper electromagnet and the lower electromagnet are alternately powered to control the stirring magnet to stir up and down.

3. The maintenance-free inline DPD residual chlorine meter according to claim 1, characterized in that: the reagent pump is a double-channel reagent pump.

4. The maintenance-free inline DPD residual chlorine meter according to claim 1, characterized in that: a modulated LED light source is further arranged at the side of the measuring chamber opposite to the silicon photocell, and the modulated LED light source is arranged towards the silicon photocell.

5. The maintenance-free inline DPD residual chlorine meter according to claim 1, characterized in that: a three-way electromagnetic valve is further arranged between the water sample pump and the first input cabin, the normally open port of the three-way electromagnetic valve is connected with the water sample cabin, and the normally closed port of the three-way electromagnetic valve is connected with the cleaning cabin.

6. The maintenance-free inline DPD residual chlorine meter according to claim 1, characterized in that: a waste liquid outlet is further arranged at the upper side of the measuring chamber, and a waste liquid pump is arranged at the waste liquid outlet to discharge waste liquid in the measuring chamber.

Images