Constant-temperature overflow water tank
By designing a multi-layered structure and a temperature control device, the problem of temperature and water level control in concrete testing of constant temperature water tanks has been solved, achieving stability of water temperature and water level and improving the accuracy and efficiency of testing.
Patent Information
- Application Number
- CN202423141154.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing constant temperature water tanks make it difficult to accurately control temperature and water level in concrete testing, resulting in inaccurate and unstable test data, which affects the accuracy and scientific nature of concrete mix design.
The constant temperature overflow water tank adopts a multi-layer structure design, including an inner layer, a middle layer and an outer layer. A heating wire is installed between the inner layer and the middle layer, and thermal insulation foam is filled between the middle layer and the outer layer. It is equipped with a temperature control device and a temperature sensor. Combined with the overflow nozzle and water pump, it realizes automatic water level adjustment to ensure the stability of water temperature and water level.
It achieves precise control of water temperature and intelligent adjustment of water level, improving the accuracy and stability of concrete testing, reducing human error, and enhancing testing efficiency and quality.
Smart Images

Figure CN223543026U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete testing technology, specifically to a constant temperature overflow water tank. Background Technology
[0002] In the mix design process of concrete mixing, it is crucial to accurately grasp the physical and chemical properties of various materials, especially the various density parameters of aggregates, such as apparent density, bulk density, compacted density, and vibratory density. The detection of these parameters depends on the accurate measurement of the weight and volume of the material in different states. When measuring the apparent density and water absorption rate of aggregates, it is necessary to immerse the aggregates in a constant temperature water environment at a specific temperature.
[0003] However, current market-available constant-temperature water tanks for this purpose generally have significant drawbacks. Regarding temperature control, the lack of effective heating and insulation mechanisms makes it difficult to maintain a stable water temperature at the required constant value. This easily leads to changes in the physical properties of the aggregates due to temperature fluctuations, thus affecting the accuracy and reliability of the test data. In terms of water level control, existing constant-temperature water tanks lack reasonable water level balance and regulation designs. Unstable water levels result in inconsistent aggregate soaking degrees, which also negatively impacts test results and severely hinders the improvement of the accuracy and scientific rigor of concrete mix design.
[0004] Therefore, developing a constant-temperature overflow tank that can precisely control temperature and water level has become a key issue that urgently needs to be addressed in the field of concrete testing technology. Utility Model Content
[0005] The purpose of this application is to provide a constant temperature overflow water tank to address the aforementioned problems existing in the prior art.
[0006] To achieve the above-mentioned application objectives, this application adopts the following technical solution: The constant temperature overflow water tank includes a measuring pool and a water storage pool. A foam cover is provided above the measuring pool and the water storage pool. The constant temperature overflow water tank consists of an inner layer, a middle layer, and an outer layer. A heating wire is provided between the inner layer and the middle layer, and heat-insulating foam is provided between the middle layer and the outer layer. An overflow nozzle is provided above the measuring pool and extends into the water storage pool. A water pump and a water pipe are provided in the water storage pool, and the water pipe extends into the measuring pool. The water in both the measuring pool and the water storage pool is at a set temperature.
[0007] Furthermore, it also includes a temperature control device and a temperature sensor. The temperature sensor is respectively installed in the inner layer of the measuring pool and the water storage pool. The temperature control device is connected to the heating wire temperature sensor via a cable.
[0008] Furthermore, the foam cover is provided with a measuring hole, through which a suspension rod passes, and the basket is suspended below the water level line of the measuring pool by the suspension rod; the water level line in the measuring pool is higher than the water level line in the storage tank.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] 1. Precise and Stable Temperature Control: This novel constant-temperature overflow water tank employs an innovative multi-layer structure design, cleverly incorporating heating wires between the inner and middle layers, combined with insulating foam between the middle and outer layers, to construct a highly efficient heating and insulation system. The heating wires, based on the coordinated feedback from the temperature control device and temperature sensor, precisely heat the water, ensuring that the water temperature quickly reaches and is stably maintained at the set temperature. This effectively avoids changes in aggregate properties caused by water temperature fluctuations, greatly improving the accuracy and stability of relevant parameter measurements in concrete testing, and providing a solid data foundation for the precise design of subsequent concrete mix proportions.
[0011] 2. Reliable and Intelligent Water Level Regulation: The unique dual-pool structure design, combined with the overflow nozzle above the measuring pool and the water pump and pipes in the storage pool, enables intelligent automatic water level regulation. When the water level in the measuring pool drops due to evaporation or other reasons, the water pump automatically replenishes the measuring pool with water preheated to the set temperature from the storage pool. This ensures that the water level in the measuring pool is always maintained at a suitable height, and that the water level line in the measuring pool is higher than the water level line in the storage pool. This guarantees smooth overflow, ensuring that the aggregate remains under stable and consistent immersion conditions throughout the testing process. This effectively guarantees the repeatability and reliability of the test results, significantly improving the efficiency and quality of concrete testing.
[0012] 3. Optimized Measurement Convenience and Stability: The carefully designed measurement holes on the foam cover, along with the matching rods and baskets, not only facilitate operators in accurately placing the aggregate below the water level in the measurement pool for testing, but also avoid interference from external factors, further improving the convenience and stability of the measurement process. This user-friendly design detail makes the entire testing operation more convenient and efficient, reduces human error, and provides more comprehensive technical support for concrete testing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this application.
[0014] In the diagram, 21 is the inner layer; 22 is the heating wire; 23 is the middle layer; 24 is the thermal insulation foam; 25 is the outer layer; 26 is the measuring pool; 27 is the water storage pool; 28 is the foam cover; 29 is the overflow nozzle; 210 is the water pump; 211 is the water pipe; 212 is the temperature control device; 213 is the temperature sensor; 214 is the measuring hole; 215 is the suspended basket; and 216 is the suspension rod. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0016] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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, the above terms should not be construed as limitations on this application.
[0017] Example 1
[0018] like Figure 1 As shown, this constant temperature overflow water tank is used for testing coarse aggregate in concrete. It includes two parts: a measuring pool 26 and a water storage tank 27. A foam cover 28 is provided above the measuring pool 26 and the water storage tank 27. The constant temperature overflow water tank consists of an inner layer 21, a middle layer 23, and an outer layer 25. A heating wire 22 is provided between the inner layer 21 and the middle layer 23, and a heat-insulating foam 24 is provided between the middle layer 23 and the outer layer 25. An overflow nozzle 29 is provided above the measuring pool 26 and extends into the water storage tank 27. A water pump 210 and a water pipe 211 are provided in the water storage tank 27. The water pipe 211 extends into the measuring pool 26. The water in the measuring pool 26 and the water storage tank 27 are at a set temperature. When the water level in the measuring pool 26 decreases, the water pump 210 can replenish the water in the water storage tank 27 to the measuring pool 26. When the water level in the measuring pool 26 increases, it can flow into the water storage tank 27 through the overflow nozzle 29.
[0019] Preferably, the constant temperature overflow water tank also includes a temperature control device 212 and a temperature sensor 213. The temperature sensor 213 is respectively installed in the inner layer of the measuring pool 26 and the water storage pool 27. The temperature control device 212 is connected to the heating wire 22 and the temperature sensor 213 via a cable. The temperature control device 212 dynamically adjusts the heating wire 22 according to the temperature data measured by the temperature sensor 213, so that the water in the measuring pool 26 and the water storage pool 27 is kept at a constant temperature.
[0020] Preferably, the foam cover plate 28 is provided with a measuring hole 214, and a hanging rod 216 passes through the measuring hole 214. The hanging basket 215 is suspended below the water level line of the measuring pool 26 by the hanging rod 216. The water level line in the measuring pool 26 is higher than the water level line in the water storage tank 27, so that after the hanging basket 215 is put in, the water in the measuring pool 26 can be quickly discharged into the water storage tank 27 through the overflow nozzle 29.
[0021] Example 2
[0022] I. Overall Structure Construction
[0023] 1. Pool body and cover plate construction
[0024] This constant temperature overflow bath mainly consists of two parts: a measuring pool 26 and a water storage pool 27. Foam covers 28 are installed above both the measuring pool 26 and the water storage pool 27. The foam covers 28 provide good heat insulation, reduce heat loss, and prevent external impurities from falling into the pool, ensuring the stability of the testing environment.
[0025] The entire water tank adopts a three-layer structure design, consisting of an inner layer 21, a middle layer 23, and an outer layer 25 from the inside out. The inner layer 21 is in direct contact with the water and its material possesses excellent corrosion resistance and thermal conductivity to ensure uniform heating of the water. Heating wires 22 are evenly distributed between the middle layer 23 and the inner layer 21, enabling efficient and uniform heating of the water, thus ensuring rapid temperature rise and stable maintenance. Insulating foam 24 fills the space between the middle layer 23 and the outer layer 25. This foam has excellent thermal insulation properties, effectively preventing heat loss to the external environment, allowing the water tank to maintain a stable temperature environment for extended periods, reducing energy consumption, minimizing water temperature fluctuations caused by frequent heating, and providing stable water temperature conditions for concrete coarse aggregate testing.
[0026] 2. Overflow and water replenishment system
[0027] An overflow nozzle 29 is provided above the measuring pool 26. The overflow nozzle 29 adopts a suitable pipe diameter and angle design to ensure that when the water level in the measuring pool 26 rises, excess water can flow smoothly and quickly into the water storage pool 27 through the overflow nozzle 29, so as to avoid the water level in the measuring pool 26 being too high and affecting the detection operation and the accuracy of the results.
[0028] The water storage tank 27 is equipped with a water pump 210 and a water pipe 211. One end of the water pipe 211 is connected to the water pump 210, and the other end extends into the measuring tank 26. When the water level in the measuring tank 26 drops due to evaporation, water absorption by the coarse aggregate, or other reasons, the water pump 210 is activated to replenish the measuring tank 26 with water preheated to a set temperature from the water storage tank 27 via the water pipe 211. This ensures that the water level in the measuring tank 26 is always maintained within a suitable height range, ensuring that the coarse aggregate is in a stable immersion environment throughout the entire testing process, making the test data more accurate and reliable.
[0029] II. Temperature Control System Operation
[0030] 1. Temperature monitoring and feedback
[0031] This invention is also equipped with a temperature control device 212 and multiple temperature sensors 213. The temperature sensors 213 are precisely installed on the inner layer 21 of the measuring pool 26 and the water storage pool 27, respectively, and can monitor the temperature changes of the water in the pool in real time and accurately, and quickly transmit the temperature data to the temperature control device 212.
[0032] 2. Dynamic temperature control
[0033] The temperature control device 212 establishes a tight connection with the heating wire 22 and the temperature sensor 213 via a cable, forming a closed-loop temperature control system. The temperature control device 212 incorporates an advanced temperature control algorithm, which analyzes and determines in real time whether the water temperature has reached the preset value based on the temperature data fed back from the temperature sensor 213. When the water temperature is lower than the set temperature, the temperature control device 212 automatically activates the heating wire 22 to heat the water, and dynamically adjusts the heating power of the heating wire 22 according to the magnitude of the temperature deviation, allowing the water temperature to rise quickly to the set temperature. Once the water temperature reaches the set temperature, the temperature control device 212 controls the heating wire 22 to maintain a lower power or stops heating to maintain a constant water temperature, preventing excessively high or low water temperatures from adversely affecting the concrete coarse aggregate testing results, and ensuring the stability and accuracy of the water temperature throughout the entire testing process.
[0034] III. Design of Measurement Auxiliary Components
[0035] 1. Assembly of measuring hole and suspension rod / basket
[0036] A measuring hole 214 is specially designed on the foam cover plate 28. The diameter of the measuring hole 214 is of moderate size, which can ensure that the suspension rod 216 can pass through smoothly while minimizing heat loss. The suspension rod 216 is inserted into the measuring hole 214. The suspension rod 216 is made of a material with sufficient strength and corrosion resistance. Its length is reasonably designed according to the depth of the measuring pool 26 to ensure that the basket 215 can be stably suspended below the water level of the measuring pool 26.
[0037] 2. Water level setting and overflow coordination
[0038] The water level in the measuring pool 26 is designed to be higher than that in the storage pool 27. This water level difference design is of great significance. When the basket 215 is placed in the measuring pool 26, due to the water level difference, the water in the measuring pool 26 will quickly drain into the storage pool 27 through the overflow nozzle 29. This quickly balances the water level change caused by the placement of the basket 215, ensuring that the water level in the measuring pool 26 remains stable. This avoids interference from water level fluctuations with parameters such as volume measurement during the coarse aggregate testing process, further improving the accuracy and reliability of the test results. It provides more precise and stable experimental conditions for testing various performance parameters of concrete coarse aggregate.
[0039] Through the above detailed implementation methods, the constant temperature overflow water tank of this utility model can effectively solve the problem of difficulty in accurately controlling the temperature and water level in the existing constant temperature water tank for concrete coarse aggregate testing, significantly improve the efficiency and quality of testing work, and has important practical value and broad market application prospects.
[0040] The parts not described in detail in this application are prior art, and therefore are not described in detail in this application.
[0041] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0042] Although this document uses a significant amount of technical terminology, the possibility of using other terms is not excluded. These terms are used merely to facilitate the description and explanation of the nature of this application; interpreting them as any additional limitation would be contrary to the spirit of this application.
[0043] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.
Claims
1. A constant-temperature overflow water tank for testing coarse aggregate in concrete, characterized in that, Includes a measuring pool (26) and a water storage pool (27); A foam cover plate (28) is provided above the measuring pool (26) and the water storage pool (27). The constant temperature overflow water tank is composed of an inner layer (21), a middle layer (23) and an outer layer (25). A heating wire (22) is provided between the inner layer (21) and the middle layer (23). A heat-insulating foam (24) is provided between the middle layer (23) and the outer layer (25). An overflow nozzle (29) is provided above the measuring pool (26). The overflow nozzle (29) extends into the water storage pool (27). A water pump (210) and a water pipe (211) are provided in the water storage pool (27). The water pipe (211) extends into the measuring pool (26). The water in the measuring pool (26) and the water storage pool (27) are both at the set temperature.
2. The constant temperature overflow water tank according to claim 1, characterized in that, It also includes a temperature control device (212) and a temperature sensor (213). The temperature sensor (213) is respectively installed in the inner layer of the measuring pool (26) and the water storage pool (27). The temperature control device (212) is connected to the heating wire (22) and the temperature sensor (213) via a cable.
3. The constant temperature overflow water tank according to claim 1 or 2, characterized in that, The foam cover plate (28) is provided with a measuring hole (214), and a hanging rod (216) is inserted through the measuring hole (214). The hanging basket (215) is suspended below the water level line of the measuring pool (26) through the hanging rod (216); the water level line in the measuring pool (26) is higher than the water level line in the storage pool (27).