Water bath kettle

Abstract

The utility model discloses a water bath kettle which comprises a semiconductor chilling plate, a plurality of hot water kettles connected with the hot end of the semiconductor chilling plate, and a plurality of cold water kettles connected with the cold end of the semiconductor chilling plate, at least two semiconductor chilling plates are arranged between the adjacent side walls of the hot water pot and the cold water pot which are adjacent and are respectively connected with the hot ends and the cold ends of the semiconductor chilling plates; the heat circulation systems of the multiple hot water pots are connected in series, heat circulation switches for controlling whether series connection is conducted are arranged between the heat circulation systems connected in series, the cold circulation systems of the multiple cold water pots are connected in series, and cold circulation switches for controlling whether series connection is conducted are arranged between the cold circulation systems connected in series. The control device is used for controlling opening and closing of the semiconductor chilling plate. A plurality of water bath kettles can be used independently or jointly, so that the sample handling capacity and temperature adjustment are more flexible and diversified, and different requirements are met; the circulating pump accelerates to reach the preset temperature, the temperature difference of the series water bath kettle is reduced, and the water bath temperature uniformity is improved.

Description

Technical Field

[0001] This utility model relates to a temperature treatment test instrument, and more particularly to a multi-station water bath with flexible temperature adjustment. Background Technology

[0002] Water baths utilize water as a transfer medium, maintaining a set temperature by controlling the water temperature to provide a stable temperature environment for the samples placed within. They are widely used in fields such as biology, medicine, chemistry, and environmental protection. To meet the demands of different low and high temperatures while effectively utilizing resources, thermoelectric coolers (TEKs) are used in the temperature control devices of water baths. A TCK consists of a thermocouple composed of P-type and N-type semiconductors. When direct current passes through it, the two ends of the thermocouple absorb and release heat, respectively. In a water bath, the cold end of the TCK is connected to a cold water circulation system to control the water temperature in the cold water bath, while the hot end is connected to a hot water circulation system to control the water temperature in the hot water bath. This efficient use of energy from both ends avoids waste and enhances the versatility of the water bath temperature to meet diverse environmental temperature requirements. However, current water baths with cooling chips have limited temperature control capabilities. While a specific temperature environment is achieved through the operation of the cooling chips, the passive cooling or heating at the other end, coupled with poor circulation performance, results in low temperature control efficiency. The water bath's temperature control flexibility is also low, meaning the temperature at the other end may not fully meet the requirements, leading to energy waste. Furthermore, to meet experimental throughput, the capacity of both the cold and hot baths cannot be too small. Larger capacities require longer waiting times to reach a constant temperature; moreover, larger capacities result in more significant energy waste when processing smaller sample volumes. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to improve the flexibility of water bath temperature adjustment, the flexibility of sample quantity processing, and to avoid energy waste, by providing a water bath with multiple stations that can flexibly adjust the temperature.

[0004] Technical Solution: The water bath of this utility model includes a thermoelectric cooler, a hot water bath connected to the hot end of the thermoelectric cooler, and a cold water bath connected to the cold end of the thermoelectric cooler. Multiple hot water baths and multiple cold water baths are provided. At least two thermoelectric coolers are provided between adjacent sidewalls of adjacent hot water baths, respectively connecting the hot and cold ends of the thermoelectric cooler. The hot circulation systems of the multiple hot water baths are connected in series, and a hot circulation switch is provided between the series-connected hot circulation systems to control whether the series-connected hot circulation is turned on. The cold circulation systems of the multiple cold water baths are connected in series, and a cold circulation switch is provided between the series-connected cold circulation systems to control whether the series-connected cold circulation is turned on. It also includes a control device for controlling the opening and closing of the thermoelectric cooler.

[0005] Furthermore, at least two semiconductor cooling plates are installed between the two side walls of the adjacent hot water pot and cold water pot. Depending on the difference between the required temperature and the room temperature, one or more semiconductor cooling plates can be turned on. The semiconductor cooling plates in appropriate positions can be selected to accelerate the flow of the circulation system, so that the water bath can quickly reach the preset temperature and improve working efficiency.

[0006] Furthermore, each of the hot water and cold water baths is equipped with a temperature sensor electrically connected to the control device. The hot and cold water baths' thermal and cold circulation systems are respectively equipped with circulation pumps to accelerate liquid diffusion and improve temperature control efficiency. These circulation pumps are electrically connected to the control device. Multiple cold and hot water baths of the same type can be connected in series to activate the circulation pumps and ensure uniform temperature. The preset temperature for each water bath controls the number and position of the activated semiconductor cooling chips to meet the preset temperature, and activates the circulation pumps to accelerate liquid diffusion within the circulation systems of the two water baths, allowing them to quickly reach the preset temperature. This also reduces the temperature difference between the two water baths connected in series, improving the uniformity of the water bath environment and processing more test samples. Alternatively, individual water baths can be used, with different temperatures set to meet different processing requirements. This creates multiple temperature environments within the water baths to meet various processing needs, increasing the flexibility of the device, broadening its applicability, and improving energy efficiency.

[0007] Furthermore, heat insulation cotton is placed between the semiconductor cooling chips to avoid interference between them, ensure the working efficiency of the semiconductor cooling chips, and at the same time ensure the accuracy and uniformity of the water bath temperature.

[0008] Furthermore, the hot water pot and cold water pot can be arranged side by side or diagonally to ensure that the hot water pot and cold water pot have adjacent side walls that separate the cold and hot ends of the semiconductor cooling chip, thereby minimizing the volume of the circulation system loop and thus reducing the volume of the water bath, making it more suitable for various testing scenarios.

[0009] Furthermore, the outer wall of the water bath is provided with an insulation layer to prevent heat loss and avoid resource waste, while improving the uniformity and retention rate of the water bath temperature.

[0010] Furthermore, each of the hot water pots and cold water pots is equipped with a liquid level sensor to monitor the liquid level in the water bath. When the liquid level is low, a reminder is given to replenish it in time to prevent the water bath from drying out and causing damage.

[0011] Furthermore, each of the hot water bath and cold water bath is equipped with a rack for securing the samples to be processed. The rack is detachable and can be placed in the water bath. Various sizes of racks can be configured to secure containers of different sizes and volumes.

[0012] Beneficial effects: Compared with the prior art, this utility model has the following advantages: 1. Multiple water baths are set up with hot circulation switches and cold circulation switches. The water baths can be used independently or in combination, and the sample processing volume and temperature adjustment are more flexible and diverse to meet different needs; 2. A circulation pump is set up to accelerate the diffusion of liquid in the circulation system of the two water baths, so that the water baths can quickly reach the preset temperature. At the same time, it can reduce the temperature difference between the two water baths connected in series and improve the uniformity of the water bath environment; 3. The structure is simple, the size is small, the manufacturing cost is low, and it is easy to promote. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the four water baths in Embodiment 1 of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the six water baths in Embodiment 1 of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the four water baths in Embodiment 2 of this utility model. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0017] Example 1

[0018] like Figure 1 The water bath shown has an outer wall insulation layer 10. The water bath includes two hot water baths 1 and two cold water baths 2 arranged diagonally and connected in series. Alternatively, it can be as follows... Figure 2 The setup includes six or more hot water baths and cold water baths. Each hot water bath 1 and cold water bath 2 is equipped with a rack 11 for securing the samples to be processed. Two thermoelectric coolers 3 are installed adjacent to each other on the side walls of adjacent hot water baths 1 and cold water baths 2, for a total of eight thermoelectric coolers 3. Insulation cotton 6 is installed between adjacent thermoelectric coolers 3. The thermal circulation system of the hot water bath 1 is connected to the hot end of the thermoelectric cooler 3, and the cold circulation system of the cold water bath 2 is connected to the cold end of the thermoelectric cooler 3. The thermal circulation systems of the two hot water baths 1 are connected in series, and a thermal circulation switch 5 is installed between these series-connected systems to control whether the series-connected thermal circulation is active. The cold water circulation systems of the two cold water baths 2 are connected in series, and a cold water circulation switch 4 is installed between these series-connected cold water circulation systems to control whether the series-connected cold water circulation is active. Each water bath's circulation system is equipped with a circulation pump 7 to accelerate liquid diffusion and improve temperature control efficiency. Each water bath can be used independently, or two hot water baths 1 or two cold water baths 2 can be used together. The thermoelectric coolers 3 are electrically connected to a control device, and the opening and closing of the eight thermoelectric coolers 3 are individually controlled. Each hot water pot 1 and cold water pot 2 is equipped with a temperature sensor 8 and a liquid level sensor 9 that are electrically connected to the control device.

[0019] During use, the number and position of the thermoelectric coolers are selected via the control device according to the temperature and reagent data requirements. 1. When there are few reagents to be processed, the cold or hot circulation switch is normally closed. Select a single cold water bath (blue box) or hot water bath (red box). Adjust the power of the thermoelectric coolers according to the required temperature setting. If the temperature difference between the required temperature and room temperature is small, select to turn on only one or two thermoelectric coolers. You can select the two thermoelectric coolers furthest apart on the water bath. When the temperature is adjusted to the target value, the power of the thermoelectric coolers will be reduced to reduce power consumption. Once the temperature is different from the target value, the power of the thermoelectric coolers will be increased to achieve dynamic balance. If the temperature difference between the required temperature and room temperature is large, turn on all four thermoelectric coolers on the water bath to run at full power. 2. When there are many reagents to be processed, select two cold water pots or hot water pots, turn on the cold or hot circulation switch and start the circulation pump to ensure uniform temperature between the two pots. Based on the settings in section 1, select an appropriate number and position of four to eight thermoelectric coolers for heating or cooling. If the two cold water pots or hot water pots need to be set to different temperatures, turn off the cold or hot circulation switch and control the power of the thermoelectric coolers to create the required temperature difference between the two pots. 3. When there are few reagents to be processed and both heating and cooling are required, select one cold water pot and one hot water pot. Adjust the power of the thermoelectric coolers according to the required temperature setting using frequency converters. Based on the settings in section 1, activate an appropriate number and position of thermoelectric coolers to reach the preset temperature. If the temperature setting exceeds the critical value, the thermoelectric coolers in the other cold water pot or hot water pot will be adjusted accordingly. 4. When there are many reagents to be processed and there are both heating and cooling requirements, select two cold water pots and two hot water pots to be fully turned on. Activate the appropriate number and position of the semiconductor cooling chips according to the setting method in section 1 to reach the preset temperature. By controlling the opening and closing of the cold or hot circulation switch, the two cold water pots or hot water pots can be set to the same temperature or different temperatures to meet the needs of various experimental scenarios.

[0020] Example 2

[0021] like Figure 3 As shown, unlike Embodiment 1, four hot water pots 1 and cold water pots 2 are arranged side by side with intervals, and at least one semiconductor cooling chip 3 is provided between the two side walls of adjacent hot water pots 1 and cold water pots 2. More hot water pots 1 and cold water pots 2 can also be arranged with intervals as needed.

Claims

1. A water bath, comprising a thermoelectric cooler (3), a hot water bath (1) connected to the hot end of the thermoelectric cooler (3), and a cold water bath (2) connected to the cold end of the thermoelectric cooler (3), characterized in that, Multiple hot water pots (1) and multiple cold water pots (2) are provided respectively. At least two semiconductor cooling chips (3) are provided between the adjacent side walls of adjacent hot water pots (1) and cold water pots (2) respectively, connecting the hot end and the cold end of the semiconductor cooling chip (3). The heat circulation systems of multiple hot water pots (1) are connected in series, and a heat circulation switch (5) for controlling whether the series heat circulation system is turned on is provided between the series heat circulation systems. The cold circulation systems of multiple cold water pots (2) are connected in series, and a cold circulation switch (4) for controlling whether the series cold circulation system is turned on is provided between the series cold circulation systems. It also includes a control device for controlling the opening and closing of the semiconductor cooling chip (3).

2. The water bath according to claim 1, characterized in that, Each of the hot water pot (1) and cold water pot (2) is provided with a temperature sensor (8) electrically connected to the control device.

3. The water bath according to claim 2, characterized in that, The hot water pot (1) and the cold water pot (2) are equipped with circulation pumps (7) for accelerating liquid diffusion and thus improving temperature control efficiency. The circulation pumps (7) are electrically connected to the control device.

4. The water bath according to claim 1, characterized in that, Insulating cotton (6) is provided between the semiconductor cooling chips (3).

5. The water bath according to claim 1, characterized in that, The hot water pot (1) and the cold water pot (2) are arranged side by side with intervals.

6. The water bath according to claim 1, characterized in that, The hot water pot (1) and the cold water pot (2) are arranged diagonally.

7. The water bath according to claim 1, characterized in that, The outer wall of the water bath is provided with a heat insulation layer (10).

8. The water bath according to claim 1, characterized in that, Each of the hot water bath (1) and cold water bath (2) is equipped with a level sensor (9) for monitoring the liquid level in the water bath.

9. The water bath according to claim 1, characterized in that, Each of the hot water pot (1) and cold water pot (2) is detachably equipped with a shelf (11) for securing the sample to be processed.

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