Residual chlorine analyzer
By introducing a heating rod and a temperature sensor into the residual chlorine analyzer, the problem of reduced sensor sensitivity in low-temperature environments was solved, enabling rapid response and high-precision residual chlorine measurement.
Patent Information
- Application Number
- CN202520409595.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing residual chlorine analyzers suffer from reduced sensor sensitivity and slower reaction between water samples and reagents in low-temperature environments, which affects measurement accuracy.
A residual chlorine analyzer was designed, comprising a housing, a microprocessor, a heating rod, an optical sensor, and a temperature sensor. The temperature sensor detects the temperature and controls the heating rod to raise the temperature, ensuring that the optical sensor operates in a suitable environment, thereby improving the response speed and measurement accuracy.
The sensitivity of the optical sensor was improved in low-temperature environments, ensuring rapid reaction between water samples and reagents, and improving the accuracy and reliability of residual chlorine measurement.
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Figure CN223910789U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the residual chlorine measurement field, concretely speaking, a residual chlorine analyzer. BACKGROUND
[0002] The residual chlorine analyzer is a kind of instrument for measuring the residual chlorine in water, i.e., the free chlorine concentration in water that has not reacted with other substances, and residual chlorine is a common disinfectant in drinking water, swimming pool water and industrial water treatment, so monitoring the residual chlorine content in water is crucial to ensuring water quality safety.
[0003] When measuring the residual chlorine content in water, first, the water to be detected is injected into a container, then residual chlorine reagent is added to the container, the reagent is mixed with the water to react, then the container containing the water is placed inside the analyzer, and the residual chlorine concentration is determined by sensing the color change of the water sample after reacting with the reagent inside the analyzer, thereby achieving measurement of the residual chlorine content in water.
[0004] However, when the existing residual chlorine analyzer is used in an external low-temperature environment, it cannot heat itself according to the external environment, and the sensor inside the analyzer is easily affected by low temperature, resulting in reduced sensitivity, and the detection water source is also affected by low temperature, which slows down the reaction with the reagent, easily leading to insufficient reaction or incomplete measurement, thereby affecting the measurement accuracy.
[0005] Therefore, the utility model provides a residual chlorine analyzer to solve the above problems. UTILITY MODEL CONTENTS
[0006] To solve the above technical problems, the utility model provides the following technical scheme:
[0007] A residual chlorine analyzer includes a housing, a shell cover is provided on the top of the housing, and a microprocessor is provided in the inner cavity of the housing, a placing groove is formed in the top of the housing, a holding vessel is movably connected in the inner cavity of the placing groove, a cover plate is connected to the top of the holding vessel, an electric heating rod is provided on both sides of the inner cavity of the placing groove, an optical sensor and a temperature sensor are respectively provided on the bottom and back of the inner cavity of the placing groove, and a display screen is provided on the front of the housing.
[0008] Further, in the utility model, the bottom of the shell cover is fixedly connected with a rubber pad, the bottom of the rubber pad extends into the inner cavity of the placing groove and is movably connected with the inner cavity of the placing groove, and the rubber pad is in contact with the inner wall of the placing groove.
[0009] Further, in the utility model, the bottom of the shell cover and the top of the housing are both fixedly connected with a magnet, the two magnets are in contact on the side close to each other, and the two magnets are magnetically connected.
[0010] Further, in the utility model, the both sides of the bottom of the containing dish are provided with limiting grooves, the electric heating rod extends to the inner cavity of the limiting groove and is movably connected with the inner cavity of the limiting groove.
[0011] Further, in the utility model, the both sides of the bottom of the containing dish are provided with limiting grooves, the electric heating rod extends to the inner cavity of the limiting groove and is movably connected with the inner cavity of the limiting groove.
[0012] Further, in the utility model, the output ends of the optical sensor and the temperature sensor are connected with the input end of the microprocessor, and the output end of the microprocessor is connected with the input end of the electric heating rod and the display screen respectively.
[0013] Beneficial effects, the utility model has following beneficial effects:
[0014] The containing dish is used for containing water sample, provides space for the reaction of the water sample and reagent, the cover plate is used for closing the containing dish to prevent the water sample from leaking out, the placing groove is used for placing the containing dish, the temperature sensor can sense the temperature of the inside of the placing groove and the surface of the containing dish in real time, the electric heating rod can be used for heating the inside of the placing groove and the containing dish according to the temperature data, the heating of the inside of the placing groove can prevent the optical sensor from being affected by low temperature, the heating of the containing dish can make the water sample and the reagent react quickly, and the measurement accuracy in the later stage can be improved, the optical sensor can sense the color change of the water sample in the containing dish to measure the residual chlorine concentration, the optical sensor can transmit sensing data to the microprocessor for analysis, the microprocessor can transmit data to the display screen for display, and the measurement of the residual chlorine can be realized, and personnel can check the residual chlorine content data in real time. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structure schematic diagram of the utility model;
[0016] Figure 2 It is the structure schematic diagram of the utility model shell and shell cover separation state;
[0017] Figure 3 It is the structure schematic diagram of the utility model shell section state;
[0018] Figure 4 It is the structure schematic diagram of the utility model containing dish and cover plate bottom view state;
[0019] Figure 5 It is the system principle schematic diagram of the utility model.
[0020] In the drawing:
[0021] 1. Outer shell; 2. Shell cover; 3. Microprocessor; 4. Placement slot; 5. Container; 6. Cover plate; 7. Heating rod; 8. Optical sensor; 9. Temperature sensor; 10. Display screen; 11. Rubber pad; 12. Magnet; 13. Limiting slot. Detailed Implementation
[0022] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.
[0023] Example 1
[0024] like Figures 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides a residual chlorine analyzer, including a housing 1, a housing cover 2 on the top of the housing 1, a microprocessor 3 in the inner cavity of the housing 1, a placement groove 4 on the top of the housing 1, a container 5 movably connected to the inner cavity of the placement groove 4, a cover plate 6 snapped onto the top of the container 5, heating rods 7 on both sides of the inner cavity of the placement groove 4, an optical sensor 8 and a temperature sensor 9 respectively on the bottom and back of the inner cavity of the placement groove 4, and a display screen 10 on the front of the housing 1.
[0025] like Figures 1-5As shown, the water sample is contained in the containing dish 5, and the residual chlorine reagent is added into the water sample, so that the water sample and the reagent react in the containing dish 5. The containing dish 5 is closed by the cover plate 6, so that the water sample is effectively prevented from leaking out. The containing dish 5 is placed in the inner cavity of the placing groove 4, and the placing groove 4 is closed by the shell cover 2, so that the placing groove 4 is isolated from the external environment, and the influence of the external environment temperature on the optical sensor 8 and the containing dish 5 in the placing groove 4 is prevented. The temperature sensor 9 can sense the temperature of the inner surface of the containing dish 5 in the placing groove 4 in real time, and the temperature data detected by the temperature sensor 9 is transmitted to the microprocessor 3. The microprocessor 3 analyzes the temperature data. If the temperature is lower than the preset value, the microprocessor 3 starts the electric heating rod 7 to generate heat to heat the placing groove 4 and the containing dish 5. The heating of the placing groove 4 can make the optical sensor 8 operate in a suitable environment, so that the measurement sensitivity is not affected by the external low temperature. The heating of the containing dish 5 can make the water sample and the reagent in the containing dish 5 react quickly, so that the measurement accuracy is improved. The optical sensor 8 can sense the color change of the water sample in the containing dish 5 to measure the residual chlorine concentration. The optical sensor 8 is a Hach DR900 colorimeter. The sensing data of the optical sensor 8 is transmitted to the microprocessor 3. The microprocessor 3 is an STM32F4 series. The data is transmitted to the display screen 10 for display, so that the residual chlorine is measured, and the residual chlorine content data can be viewed in real time.
[0026] Embodiment 2
[0027] Referring to Figures 1-3 As a second embodiment of the utility model, the embodiment is based on the previous embodiment.
[0028] In the embodiment, the bottom of the shell cover 2 is fixedly connected with a rubber pad 11. The bottom of the rubber pad 11 extends to the inner cavity of the placing groove 4 and is movably connected with the inner cavity of the placing groove 4 and in contact with the inner wall of the placing groove 4.
[0029] The bottom of the shell cover 2 and the top of the shell 1 are both fixedly connected with a magnet 12. The two magnets 12 are in contact on the side close to each other and are magnetically connected.
[0030] As shown, Figures 1-3 The shell cover 2 is placed on the top of the shell 1, so that the two rubber pads 11 are magnetically connected, ensuring the firmness of the connection between the shell 1 and the shell cover 2. At the same time, the rubber pad 11 enters the inner cavity of the placing groove 4 to close the placing groove 4, so that the placing groove 4 is isolated from the external environment, preventing the influence of the external environment temperature on the optical sensor 8 and the containing dish 5 in the placing groove 4.
[0031] Example 3
[0032] Reference Figures 2-5 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0033] In this embodiment, indicator lights are provided on both sides of the upper front of the outer casing 1, and the indicator lights are divided into red lights and green lights. The output terminal of the microprocessor 3 is connected to the input terminal of the indicator lights.
[0034] Limiting grooves 13 are provided on both sides of the bottom of the holding dish 5. The heating rod 7 extends into the inner cavity of the limiting groove 13 and is movably connected to the inner cavity of the limiting groove 13.
[0035] The outputs of optical sensor 8 and temperature sensor 9 are both connected to the input of microprocessor 3, and the output of microprocessor 3 is connected to the input of heating rod 7 and display screen 10, respectively.
[0036] like Figures 2-5 As shown, the indicator light is connected to the microprocessor 3, which can then activate the indicator light to illuminate red and green lights to indicate whether the residual chlorine content in the water is within acceptable limits. The heating rod 7 extends into the inner cavity of the limiting groove 13, thus limiting the placement dish 5 and preventing displacement of the dish 5 during color measurement of the water sample inside. The heating rod 7 also enters the inner cavity of the limiting groove 13 to heat the dish 5 and its internal water sample. The optical sensor 8 and temperature sensor 9 are connected to the microprocessor 3, facilitating the transmission of detected data to the microprocessor 3 for analysis. The heating rod 7 and display screen 10 are also connected to the microprocessor 3, allowing the microprocessor 3 to easily activate or deactivate the heating rod 7 and transmit the data to the display screen 10 for easy viewing.
[0037] In use, first, the personnel pull the shell cover 2, the shell cover 2 drives two rubber pads 11 to separate, remove the magnetic connection, and then realize the opening of the placing groove 4, then take out the holding dish 5 and the cover plate 6 from the inside of the placing groove 4, then pull the cover plate 6, make the cover plate 6 separate from the holding dish 5, open the holding dish 5, inject the water sample into the holding dish 5, then add the residual chlorine reagent to the water sample, make the water sample and the reagent react in the holding dish 5, then take the cover plate 6, make the cover plate 6 be clamped above the holding dish 5, and then the holding dish 5 can be closed again, effectively prevent the water sample from leaking during the later measurement, place the holding dish 5 in the inner cavity of the placing groove 4, and the electric heating rod 7 enters the inner cavity of the limiting groove 13, so as to limit the holding dish 5, then place the shell cover 2 on the top of the shell 1, make the two rubber pads 11 produce magnetic connection, ensure the firmness of the connection between the shell 1 and the shell cover 2, and at the same time, the rubber pad 11 enters the inner cavity of the placing groove 4, so as to close the placing groove 4 and isolate it from the external environment, prevent the external environment temperature from affecting the optical sensor 8 and the holding dish 5 in the placing groove 4, then the temperature sensor 9 can sense the temperature of the surface of the holding dish 5 and the inside of the placing groove 4 in real time, the temperature sensor 9 is of Lufft WS700 type, and the temperature data detected by the temperature sensor 9 is transmitted to the microprocessor 3, the temperature data is analyzed by the microprocessor 3, if the temperature is lower than the preset value, the microprocessor 3 starts the electric heating rod 7 to generate heat and heats the inside of the placing groove 4 and the holding dish 5, the heating of the inside of the placing groove 4 can make the optical sensor 8 work in a suitable environment, so as not to be affected by the external low temperature factor to affect the measurement sensitivity, and the heating of the holding dish 5 can make the water sample and the reagent in the holding dish 5 react quickly, so as to improve the measurement accuracy, the optical sensor 8 can sense the color change of the water sample in the holding dish 5 to measure the residual chlorine concentration, the sensing data of the optical sensor 8 can be transmitted to the microprocessor 3 for analysis, and the data can be transmitted to the display screen 10 for display by the microprocessor 3, so that the personnel can check the residual chlorine content data in real time, when the microprocessor 3 analyzes, if the residual chlorine content in the water sample is higher than the preset value, the microprocessor 3 starts the prompt light, the prompt light emits red light to remind the personnel, if the residual chlorine content in the water sample is lower than the preset value, the microprocessor 3 starts the prompt light to emit green light to inform the personnel, so as to realize the measurement of the residual chlorine in the water.
[0038] The standard parts used in the application file can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, the control mode is automatically controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, which belongs to the common knowledge in the art, and the application is mainly used to protect the mechanical device, so the control mode and circuit connection are not explained in detail.
[0039] Although the utility model has disclosed as above with preferable embodiment, it is not used to limit the utility model. Those who have ordinary knowledge in the technical field to which the utility model belongs can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the definition of the claims.
Claims
1. A residual chlorine analyser comprising a housing (1) characterised in that: The top of the shell (1) is provided with a shell cover (2), and the inner cavity of the shell (1) is provided with a microprocessor (3), the top of the shell (1) is provided with a placing groove (4), the inner cavity of the placing groove (4) is movably connected with a containing dish (5), the top of the containing dish (5) is connected with a cover plate (6), both sides of the inner cavity of the placing groove (4) are provided with an electric heating rod (7), the bottom of the inner cavity of the placing groove (4) and the back of the inner cavity are respectively provided with an optical sensor (8) and a temperature sensor (9), and the front of the shell (1) is provided with a display screen (10).
2. The residual chlorine analyzer as set forth in claim 1, wherein: The bottom of the shell cover (2) is fixedly connected with a rubber pad (11), the bottom of the rubber pad (11) extends to the inner cavity of the placing groove (4) and is movably connected with the inner cavity of the placing groove (4) and contacts with the inner wall of the placing groove (4).
3. The residual chlorine analyzer as set forth in claim 1, wherein: The bottom of the shell cover (2) and the top of the shell (1) are both fixedly connected with a magnet (12), the side of the two magnets (12) close to each other is in contact, and the two magnets (12) are magnetically connected.
4. The residual chlorine analyzer of claim 1, wherein: The front of the shell (1) is provided with a prompt light on both sides of the upper end, and the prompt light is divided into a red light and a green light, and the output end of the microprocessor (3) is connected with the input end of the prompt light.
5. The residual chlorine analyzer of claim 1, wherein: The bottom of the containing dish (5) is provided with a limiting groove (13) on both sides, the electric heating rod (7) extends to the inner cavity of the limiting groove (13) and is movably connected with the inner cavity of the limiting groove (13).
6. The residual chlorine analyzer of claim 1, wherein: The output end of the optical sensor (8) and the temperature sensor (9) is connected with the input end of the microprocessor (3), and the output end of the microprocessor (3) is connected with the input end of the electric heating rod (7) and the display screen (10).