A laboratory hard water evaporation fouling apparatus

Abstract

The utility model relates to water quality analysis technical field, more particularly, relate to a kind of laboratory hard water evaporation scale formation device, evaporation cavity in outer box is heated to the water sample in evaporation dish by bottom heater, and the placing hole of the storage rack is used to fix evaporation dish, and the weight sensor on mounting groove can real-time monitoring evaporation dish weight change.Solubility scale formation ion gradually precipitates as solid precipitate.Steam recovery mechanism collects and condenses the steam escaping from the upper end of evaporation cavity through circulating air pipe, realizing gas-liquid separation.The design of the structure, by built-in weight sensor real-time measurement precipitate mass, shorten the analysis time.Steam recovery mechanism can effectively collect and condense steam, realize reliable gas-liquid separation and moisture recovery, avoid sample loss and environmental pollution.The whole device structure integration degree is high, realizes the automation and continuous of hard water scale formation measurement, helps operator to obtain data and adjust process parameters in time.

Description

Technical Field

[0001] This utility model relates to the field of water quality analysis technology, and more specifically, to a laboratory hard water evaporation and scaling device. Background Technology

[0002] Hard water refers to water containing a high amount of soluble calcium and magnesium compounds. These ions dissolve as the water flows through geological formations. When this type of hard water is heated or its pH conditions change, the calcium and magnesium ions combine with acid radicals to form insoluble precipitates, such as calcium carbonate and magnesium hydroxide, which gradually deposit on contact surfaces—a process known as scaling. Hard water scaling poses significant hazards to production and daily life in many ways: In industrial and domestic applications, scale deposition significantly reduces heat exchange efficiency, increases energy consumption, reduces pipe flow area, increases pressure loss, and can even cause equipment blockage and excessive wear, shortening its lifespan; for sophisticated water treatment membrane systems, scaling is a key factor leading to membrane pore blockage, reduced water production, and increased operating pressure, directly jeopardizing system operating efficiency and membrane element lifespan; furthermore, hard water affects the sensory quality of drinking water and may form deposits in water distribution systems, providing conditions for microbial growth and potentially threatening the biological stability of water quality. Therefore, measuring the amount of scale in hard water is of great importance. It is not only the basis for assessing water quality characteristics and warning of scaling risks, but also an indispensable technical means for optimizing water treatment processes and ensuring the safe, efficient and economical operation of water-using equipment.

[0003] Existing hard water structural quantity measurement procedures are cumbersome. First, sampling is performed, accurately measuring a specific volume of water to be tested as the analytical baseline. Then, water is evaporated through heating, causing dissolved scale-forming ions to precipitate as solids. After evaporation, thorough drying is required to completely remove residual moisture and ensure stable solid mass. The dried sample must then be cooled to room temperature in a desiccator. The entire process is time-consuming, inefficient in automation, and cannot provide results quickly. This prevents operators from adjusting process parameters promptly according to changes in water quality. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a laboratory hard water evaporation scaling device, which reduces scaling time and improves automation efficiency.

[0005] A laboratory hard water evaporation scaling device according to an embodiment of the present invention includes: An outer casing, inside which an evaporation chamber is provided; a heater is provided at the bottom of the evaporation chamber in the outer casing; A shelf is provided in the evaporation chamber. The shelf has a placement hole for fixing the evaporation dish. A mounting groove is provided at the upper outer edge of the placement hole, and a weight sensor is provided on the mounting groove. A steam recovery mechanism is provided, wherein a circulating air pipe is provided, one end of which is connected to the upper end of the evaporation chamber, and the other end of which is connected to the lower end of the evaporation chamber.

[0006] According to some embodiments of the present invention, the shelf includes a fixed bracket and a support, and the placement hole is provided on the support; the fixed bracket and the outer casing are fixedly connected, and a slide rail is provided on the fixed bracket; the support has sliding grooves on both sides, and the sliding grooves and the slide rail are slidably connected.

[0007] According to some embodiments of the present invention, the steam recovery mechanism includes a cover plate and a corrugated pipe, the lower end of the corrugated pipe is connected to the cover plate, and the upper end of the corrugated pipe is connected to the circulating gas pipe; the cover plate and the evaporating dish are detachably connected.

[0008] According to some embodiments of the present invention, a temperature sensor is provided on the cover plate along the vertical direction.

[0009] According to some embodiments of the present invention, a guide fan is provided between the corrugated pipe and the circulating air pipe.

[0010] According to some embodiments of this utility model, a condenser is provided on the circulating gas pipe.

[0011] According to some embodiments of the present invention, multiple weight sensors are provided, and the multiple weight sensors are arranged in a circumferential distribution on the mounting groove.

[0012] According to some embodiments of the present invention, the bracket is provided with a pull plate, and the pull plate is provided with a pull hole.

[0013] According to some embodiments of this utility model, a control panel is provided on the outer casing.

[0014] According to some embodiments of the present invention, the bottom of the outer casing is provided with foot pads.

[0015] A laboratory hard water evaporation and scaling device according to an embodiment of the present invention has at least the following beneficial effects: According to the present invention, the evaporation chamber inside the outer casing heats and evaporates the water sample in the evaporation dish through a bottom heater. The placement holes of the rack are used to fix the evaporation dish, and the weight sensor on the mounting slot can monitor the weight change of the evaporation dish in real time. As the water evaporates, dissolved scale-forming ions gradually precipitate as solid precipitates. The steam recovery mechanism collects and condenses the steam escaping from the upper end of the evaporation chamber through a circulating gas pipe, achieving gas-liquid separation. This design, using a built-in weight sensor to measure the precipitate mass in real time, eliminates the need for repeated drying, cooling, and manual weighing steps in traditional processes, significantly shortening the analysis time. The steam recovery mechanism effectively collects and condenses steam, achieving reliable gas-liquid separation and water recovery, avoiding sample loss and environmental pollution. The entire device has a high degree of integration, realizing the automation and continuous measurement of hard water scale, helping operators to obtain data and adjust process parameters in a timely manner. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of one structure of the bracket of this utility model.

[0017] In the picture: 100-Outer casing, 101-Evaporation chamber, 110-Heater, 120-Control panel, 130-Foot pads; 200-Shelf, 210-Placement hole, 220-Mounting slot, 221-Weight sensor, 230-Evaporating dish, 240-Fixed bracket, 241-Slide rail, 250-Bracket, 251-Slide groove, 252-Pull plate, 253-Pull hole; 300-Steam recovery mechanism, 310-Circulating gas pipe, 320-Cover plate, 321-Temperature sensor, 330-Belling pipe, 340-Guide fan, 350-Condenser. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 4As shown, this utility model discloses a laboratory hard water evaporation and scaling device. The laboratory hard water evaporation and scaling device includes an outer casing 100, a shelf 200, and a steam recovery mechanism 300. An evaporation chamber 101 is provided inside the outer casing 100. A heater 110 is provided at the bottom of the evaporation chamber 101 in the outer casing 100. The shelf 200 is provided in the evaporation chamber 101 and has a placement hole 210 for fixing an evaporation dish 230. An installation groove 220 is provided at the upper outer edge of the placement hole 210, and a weight sensor 221 is provided on the installation groove 220. The steam recovery mechanism 300 is provided with a circulation pipe 310. One end of the circulation pipe 310 is connected to the upper end of the evaporation chamber 101, and the other end of the circulation pipe 310 is connected to the lower end of the evaporation chamber 101. Specifically, in this embodiment, the empty evaporating dish 230 is first placed stably in the placement hole 210 of the shelf 200 and fixed to ensure the device is in its initial state. The reading of the weight sensor 221 is checked to ensure it is zero. A specific volume of hard water sample to be tested is accurately measured and added to the evaporating dish 230. Further, the heater 110 is activated by the control system, and the heater 110 begins to heat and evaporate the water sample. During this process, the weight sensor 221 continuously monitors the total mass change of the evaporating dish 230 and its contents. The water vapor generated by evaporation enters the circulation pipe 310 from the upper end of the evaporation chamber 101 and is introduced into the steam recovery mechanism 300. The steam is condensed here, achieving gas-liquid separation and recovering water. When the reading of the weight sensor 221 stabilizes over a period of time, it indicates that the water has completely evaporated and all scale-forming ions have been converted into solid precipitates, at which point heating can be stopped. The final mass data displayed by the weight sensor 221 at this time is recorded. The difference between this data and the initial mass of the empty evaporating dish 230 is the amount of scale precipitated. The entire process requires no intermediate sample transfer or additional drying or cooling steps, achieving integrated and automated measurement. Through this structural design, the evaporation chamber 101 within the outer casing 100 heats and evaporates the water sample in the evaporation dish 230 via a bottom heater 110. The placement hole 210 of the shelf 200 is used to fix the evaporation dish 230, and the weight sensor 221 on the mounting slot 220 can monitor the weight change of the evaporation dish 230 in real time. As the water evaporates, dissolved scale-forming ions gradually precipitate as solid precipitates. The steam recovery mechanism 300 collects and condenses the steam escaping from the upper end of the evaporation chamber 101 through the circulating gas pipe 310, achieving gas-liquid separation. This structural design, with its built-in weight sensor 221 measuring the precipitate mass in real time, eliminates the need for repeated drying, cooling, and manual weighing steps in traditional processes, significantly shortening the analysis time. The steam recovery mechanism 300 effectively collects and condenses steam, achieving reliable gas-liquid separation and water recovery, avoiding sample loss and environmental pollution. The entire device has a high degree of integration, realizing the automation and continuous measurement of hard water scaling, which helps operators obtain data in a timely manner and adjust process parameters.

[0023] In some embodiments of this utility model, the shelf 200 includes a fixed bracket 240 and a support 250, with a placement hole 210 disposed on the support 250. The fixed bracket 240 is fixedly connected to the outer casing 100, and a slide rail 241 is provided on the fixed bracket 240. Slide grooves 251 are provided on both sides of the support 250, and the slide grooves 251 and the slide rails 241 are slidably connected. Specifically, in this embodiment, the shelf 200 is composed of the fixed bracket 240 and the support 250, with the placement hole 210 disposed on the support 250. The fixed bracket 240 is fixedly connected to the outer casing 100, and a slide rail 241 is mounted on the fixed bracket 240. The slide grooves 251 on both sides of the support 250 are slidably connected to the slide rails 241, allowing the support 250 to move smoothly along the slide rails 241. The evaporating dish 230 is placed in the placement hole 210 of the support 250, and its mass change is monitored in real time by a weight sensor 221 on the mounting groove 220. The bracket 250, through the sliding engagement of the slide groove 251 and the slide rail 241, enables the smooth insertion and removal of the evaporating dish 230, facilitating operation and maintenance. This design ensures the stability of the shelf 200 during load-bearing and movement, allowing the weight sensor 221 to obtain accurate measurement results.

[0024] In some embodiments of this utility model, the steam recovery mechanism 300 includes a cover plate 320 and a bellows 330. The lower end of the bellows 330 is connected to the cover plate 320, and the upper end of the bellows 330 is connected to the circulating gas pipe 310. The cover plate 320 and the evaporating dish 230 are detachably connected. The lower end of the bellows 330 is connected to the cover plate 320, and the upper end is connected to the circulating gas pipe 310. The steam generated during the heating process is collected by the cover plate 320 and introduced into the circulating gas pipe 310 system through the bellows 330. The detachable connection between the cover plate 320 and the evaporating dish 230 ensures the sealing of the steam collection and facilitates the cleaning and maintenance of the device. The bellows 330 has good flexibility and extensibility, and can adapt to the movement of the bracket 250 on the slide rail 241 without affecting the connection stability of the steam recovery pipeline. The design of this structure further enhances the continuity and automation of the measurement process, effectively ensuring the accuracy of the measurement results.

[0025] In some embodiments of this utility model, a temperature sensor 321 is provided on the cover plate 320 along the vertical direction. In this embodiment, the temperature sensor 321 can be a resistance temperature sensor 321 or a thermocouple temperature sensor 321; when the cover plate 320 and the evaporating dish 230 are fixed together, the lower end of the temperature sensor 321 extends into the evaporating dish 230 to monitor the real-time temperature in the evaporating dish 230.

[0026] In some embodiments of this utility model, a guide fan 340 is provided between the corrugated pipe 330 and the circulating gas pipe 310. Further, a condenser 350 is provided on the circulating gas pipe 310. Specifically, in this embodiment, the shelf 200 is composed of a fixed bracket 240 and a support 250. The fixed bracket 240 is fixedly connected to the outer casing 100 and has a slide rail 241 on it. The support 250 is slidably connected to the slide rail 241 via sliding grooves 251 on both sides. A placement hole 210 is provided on the support 250 for fixing the evaporating dish 230. The steam recovery mechanism 300 includes a cover plate 320 and a corrugated pipe 330. The cover plate 320 is detachably connected to the evaporating dish 230 and has a temperature sensor 321 on it. The lower end of the corrugated pipe 330 communicates with the cover plate 320, and the upper end communicates with the circulating gas pipe 310. A guide fan 340 is installed between the bellows 330 and the circulating gas pipe 310, and a condenser 350 is installed on the circulating gas pipe 310. Driven by the guide fan 340, the steam generated by evaporation is actively drawn in and flows sequentially through the bellows 330 and the circulating gas pipe 310, finally liquefying in the condenser 350. This design, with the introduction of the guide fan 340, enhances the directional flow efficiency of the steam, effectively preventing steam from stagnating in the evaporation chamber 101. The condenser 350 ensures that the steam can be quickly and fully converted into liquid water, achieving efficient gas-liquid separation and recovery. This design improves the overall efficiency of the steam recovery mechanism 300, making water collection more thorough, and also helps maintain a stable low-pressure environment within the evaporation chamber 101, thereby accelerating the evaporation process and further improving measurement speed and accuracy.

[0027] In some embodiments of this invention, multiple weight sensors 221 are provided, arranged circumferentially on the mounting groove 220. This circumferential arrangement of the weight sensors 221 ensures even weight distribution on the evaporating dish 230, effectively avoiding measurement errors caused by single-point load-bearing or placement misalignment. This design significantly improves the stability of mass monitoring and the accuracy of measurement results. Even if the evaporating dish 230 is slightly unbalanced during placement, the system can obtain reliable mass readings through multi-point data fusion, enhancing the anti-interference capability and repeatability of the entire measurement process.

[0028] In some embodiments of this utility model, a pull plate 252 is provided on the bracket 250, and a pull hole 253 is provided on the pull plate 252. The pull plate 252 facilitates the control of the bracket 250 to move horizontally.

[0029] In some embodiments of this utility model, a control panel 120 is provided on the outer casing 100. In this embodiment, by designing the control panel 120, various information data within the device can be collected, facilitating visual management.

[0030] In some embodiments of this utility model, a foot pad 130 is provided at the bottom of the outer casing 100. By designing the foot pad 130 at the bottom of the outer casing 100, the stability of the outer casing 100 can be increased.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A laboratory hard water evaporation and scaling device, characterized in that, include: An outer casing (100) is provided, and an evaporation chamber (101) is provided inside the outer casing (100); a heater (110) is provided at the bottom of the evaporation chamber (101) in the outer casing (100). A shelf (200) is provided in the evaporation chamber (101). The shelf (200) is provided with a placement hole (210) for fixing the evaporation dish (230). A mounting groove (220) is provided at the upper outer edge of the placement hole (210). A weight sensor (221) is provided on the mounting groove (220). A steam recovery mechanism (300) is provided with a circulating air pipe (310), one end of which is connected to the upper end of the evaporation chamber (101), and the other end of which is connected to the lower end of the evaporation chamber (101).

2. The laboratory hard water evaporation and scaling device according to claim 1, characterized in that, The shelf (200) includes a fixed bracket (240) and a bracket (250), and the placement hole (210) is provided on the bracket (250); the fixed bracket (240) and the outer box (100) are fixedly connected, and a slide rail (241) is provided on the fixed bracket (240); the bracket (250) has sliding grooves (251) on both sides, and the sliding grooves (251) and the slide rails (241) are slidably connected.

3. The laboratory hard water evaporation and scaling device according to claim 2, characterized in that, The steam recovery mechanism (300) includes a cover plate (320) and a bellows (330). The lower end of the bellows (330) is connected to the cover plate (320), and the upper end of the bellows (330) is connected to the circulating gas pipe (310). The cover plate (320) and the evaporating dish (230) are detachably connected.

4. The laboratory hard water evaporation and scaling device according to claim 3, characterized in that, A temperature sensor (321) is provided on the cover plate (320) along the vertical direction.

5. The laboratory hard water evaporation and scaling device according to claim 4, characterized in that, A flow guide fan (340) is provided between the bellows (330) and the circulating air pipe (310).

6. The laboratory hard water evaporation and scaling apparatus according to claim 5, characterized in that, A condenser (350) is provided on the circulating gas pipe (310).

7. The laboratory hard water evaporation and scaling apparatus according to claim 1, characterized in that, Multiple weight sensors (221) are provided, and the multiple weight sensors (221) are arranged in a circumferential distribution on the mounting groove (220).

8. The laboratory hard water evaporation and scaling device according to claim 2, characterized in that, The bracket (250) is provided with a pull plate (252), and the pull plate (252) is provided with a pull hole (253).

9. The laboratory hard water evaporation and scaling device according to claim 1, characterized in that, A control panel (120) is provided on the outer casing (100).

10. The laboratory hard water evaporation and scaling apparatus according to claim 1, characterized in that, The bottom of the outer casing (100) is provided with foot pads (130).

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