Energy-saving electric constant-temperature water bath with precise temperature control

Abstract

The utility model relates to water bath pot technical field, concretely is energy -conserving type electric heating constant temperature water bath pot of precision temperature control, including the outer tube, the inside of outer tube is equipped with the pot body, the fixed ring is fixed between the pot body and outer tube, the circumference inner wall of pot body is installed with a plurality of heating rings near the bottom end department, the circumference inner wall on pot body is fixed with the mounting plate, and the outer wall on mounting plate is installed with a plurality of temperature sensors that are vertically linear equal interval arrangement, still include: the heat -equalizing mechanism is set up in the pot body inside, is used for the water temperature of each water layer in the pot body inside equal temperature treatment, the utility model discloses a plurality of vertical equal interval temperature sensors and heating rings are set up, cooperate outside PLC, solve the problem that traditional water bath pot water temperature monitoring is not comprehensive, and the temperature control precision low problem caused by the heating unevenness, through setting up the heat -equalizing mechanism containing the rotating rod, the heat -equalizing roller, the spiral blade etc., solve the problem that the different water layer temperature difference in the pot is big, and the heat -equalizing effect is poor.

Description

Technical Field

[0001] This utility model relates to the field of water bath technology, specifically to an energy-saving electric thermostatic water bath with precise temperature control. Background Technology

[0002] In scientific research experiments, biological culture, chemical reactions and other fields, electric thermostatic water baths are commonly used temperature control equipment. Their core requirement is to provide a stable and uniform constant temperature water environment for experimental or production processes.

[0003] Patent CN222739206U discloses a constant temperature water bath for testing, relating to the field of testing technology. It includes a pot body and a pot lid. The top of the pot body has a heating chamber. An electric heating tube is fixedly installed at the bottom of the inner wall of the heating chamber. A partition and a limiting block are fixedly installed on the side of the inner wall of the heating chamber. The top of the pot lid has an opening. A stabilizing cover is placed on the top of the opening. A test tube is provided inside the pot body. A hollow block is fixedly connected to the bottom of the stabilizing cover.

[0004] Although this device can prevent scale buildup on the heating element surface from affecting heat exchange efficiency, and when the bottom of the test tube is inserted into the through hole, rotating the handle allows the first and second clamping blocks to simultaneously approach the test tube surface to clamp and fix it, preventing it from shaking during heating, the device lacks a temperature detection structure. This makes it impossible to comprehensively acquire temperature data from different water layers within the pot. Consequently, it struggles to accurately determine temperature differences between water layers during heating, often relying on overall heating to adjust the water temperature. This can lead to localized excessively high or low temperatures, hindering precise temperature control and affecting the accuracy of experimental results or the stability of the production process. Furthermore, the device relies solely on natural water convection for temperature uniformity, a highly inefficient method. Especially when the water volume is large, the temperature difference between the bottom and top water layers is significant and cannot be eliminated quickly, preventing full circulation of the entire water layer and resulting in poor temperature uniformity. Against this backdrop, we propose an energy-saving electric thermostatic water bath with precise temperature control. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving electric thermostatic water bath with precise temperature control. By setting up several vertically spaced temperature sensors and heating rings, in conjunction with an external PLC, it solves the problem of low temperature control accuracy caused by incomplete water temperature monitoring and uneven heating in traditional water baths. By setting up a heat equalization mechanism including rotating rods, heat equalization rollers, and spiral blades, it solves the problem of large temperature differences and poor temperature uniformity in different water layers inside the bath.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An energy-saving electric thermostatic water bath with precise temperature control includes an outer cylinder, an inner body of which is fixed with a retaining ring. Several heating rings are installed on the inner circumference of the inner body near its bottom. A mounting plate is fixed to the inner circumference of the inner body, and several temperature sensors arranged vertically and linearly at equal intervals are installed on the outer wall of the mounting plate. The bath also includes:

[0008] A heat equalization mechanism, located inside the pot body, is used to equalize the water temperature of each water layer inside the pot body. The heat equalization mechanism includes two rotating rods rotatably connected to the pot body, two heat equalization rollers coaxially fixed on the top surface of the rotating rods on the same side, several spiral blades fixed on the outer wall of the heat equalization rollers on the same side, several heat equalization rods fixed on the outer wall of the heat equalization rollers on the same side, two pulleys installed on the bottom surface of the pot body for driving the two rotating rods to rotate, and a motor installed on the bottom surface of the pot body for driving the two pulleys to rotate.

[0009] In a preferred embodiment, the rotating rod penetrates the bottom surface of the pot body and extends into the pot body near the bottom end. The two heat-spreading rollers are symmetrical to each other, and several heat-spreading rods and several spiral blades are located inside the pot body.

[0010] In a preferred embodiment, several heat-spreading rods located on the same side are installed on the outer circumference of the heat-spreading roller in pairs and arranged vertically at equal intervals, and several spiral blades located on the same side are installed on the outer circumference of the heat-spreading roller in groups of three and arranged vertically at equal intervals.

[0011] In a preferred embodiment, the heat equalization mechanism further includes an L-shaped plate fixed to the bottom surface of the pot body and located inside the outer cylinder, a rotating shaft coaxially fixed to the bottom surface of the rotating rod on the same side and rotatably connected to the horizontal plate end of the L-shaped plate, two pulleys connected by belt drive and coaxially fixed to the outer circumference of the two rotating rods respectively, and the motor installed on the bottom surface of the horizontal plate end of the L-shaped plate and the output shaft coaxially connected to the rotating shaft.

[0012] In a preferred embodiment, the belt and the two pulleys are both located below the pot body and inside the outer cylinder, and the two rotating rods are provided with sealing rings at the points where they contact the pot body.

[0013] These four features enable the heat equalization mechanism to fully act on the water inside the pot, ensuring that the temperature equalization effect covers the entire pot space. They also allow the heat equalization roller to evenly agitate different water layers during operation, improving the uniformity of water circulation and temperature equalization. Furthermore, they ensure stable transmission of the heat equalization mechanism, providing reliable power support for the continuous rotation of the rotating rod, protecting the transmission components from external interference, and preventing water leakage inside the pot, thus ensuring the sealing and safety of the device.

[0014] In a preferred embodiment, the temperature sensor is mounted on the side surface of the mounting plate away from the inner circumference of the pot body, and a plurality of the heating rings are mounted on the inner circumference of the pot body in a vertically linear and equally spaced arrangement.

[0015] This setting enables more accurate temperature sensor monitoring and more uniform heating of the heating ring, facilitating precise water temperature control.

[0016] In a preferred embodiment, the outer circumferential wall of the fixing ring is fixed to the inner circumferential wall of the outer cylinder near the top, and the inner circumferential wall of the fixing ring is fixed to the outer circumferential wall of the pot body near the top.

[0017] In a preferred embodiment, an insulation sleeve adapted to the shape of its inner cavity is installed inside the outer cylinder. The thickness of the insulation sleeve is 5mm-12mm, and the top surface of the insulation sleeve is tightly fitted to the bottom surface of the fixing ring.

[0018] These two features ensure that the pot body is firmly fixed inside the outer cylinder, preventing shaking during use, ensuring the structural stability of the device, reducing heat loss from the pot body, lowering energy consumption, achieving energy-saving effects, and maintaining a stable temperature inside the pot.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, through the setting of an outer cylinder, a pot body, a fixing ring, a mounting plate, and several temperature sensors arranged vertically at equal intervals, achieves real-time and accurate monitoring of the water temperature of different water layers inside the pot body, avoiding the problem of incomplete monitoring by a single sensor; at the same time, in conjunction with several vertically arranged heating rings at equal intervals and an external PLC system, heating can be adjusted according to the temperature differences of different water layers, achieving precise control of the water temperature inside the pot body, effectively preventing local water temperatures from being too high or too low, and achieving the effect of keeping the water temperature stable at a constant temperature, ensuring the consistency of the water temperature environment during experiments or production, and improving the reliability of the water bath.

[0021] 2. This utility model, through the setting of a heat equalization mechanism, uses a motor-driven pulley to rotate a rotating rod, causing the spiral blades and heat equalization rod on the heat equalization roller to rotate. This not only agitates the water inside the pot but also lifts the water at the bottom upwards, achieving full circulation of the water and effectively eliminating temperature differences between water layers. At the same time, the 5mm-12mm thick insulation jacket inside the outer cylinder reduces heat loss, achieving energy saving and consumption reduction. This results in the dual effects of improving the overall performance of the water bath and reducing energy costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2This is one of the partial sectional views of this utility model;

[0024] Figure 3 This is one of the exploded views of this utility model;

[0025] Figure 4 This is a second partial sectional view of the present invention;

[0026] Figure 5 This is the second partially exploded view of this utility model;

[0027] Figure 6 This is a schematic diagram of the overall structure of the heat dissipation mechanism in this utility model;

[0028] Figure 7 This is one of the exploded views of the heat dissipation mechanism in this utility model;

[0029] Figure 8 This is the second partially exploded view of the heat dissipation mechanism in this utility model;

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Outer cylinder; 11. Insulation sleeve; 2. Pot body; 21. Fixing ring; 22. Mounting plate; 23. Temperature sensor; 24. Heating ring; 3. Heat equalization mechanism; 31. Rotating rod; 32. Heat equalization roller; 33. Heat equalization rod; 34. Spiral blade; 35. Motor; 36. Pulley; 37. Belt; 38. L-shaped plate; 39. Rotating shaft. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-5 The present invention provides a technical solution: an energy-saving electric thermostatic water bath with precise temperature control, including an outer cylinder 1, a pot body 2 inside the outer cylinder 1, a fixing ring 21 between the pot body 2 and the outer cylinder 1, a number of heating rings 24 installed on the inner circumference of the pot body 2 near the bottom, an mounting plate 22 fixed on the inner circumference of the pot body 2, and a number of temperature sensors 23 arranged vertically and linearly at equal intervals on the outer wall of the mounting plate 22.

[0034] By setting up an outer cylinder 1, a pot body 2, a fixing ring 21, a mounting plate 22, and several temperature sensors 23, the water temperature of different water layers inside the pot body 2 can be monitored. By setting up several heating rings 24 and using an external PLC and several temperature sensors 23, the water temperature inside the pot body 2 can be precisely controlled, so that the water temperature is always kept at a constant temperature.

[0035] In this embodiment, the temperature sensor 23 is installed on the side surface of the mounting plate 22 away from the inner circumference of the pot body 2, and a number of heating rings 24 are installed on the inner circumference of the pot body 2 in a vertically linear and equally spaced manner.

[0036] By mounting temperature sensor 23 on the side of the mounting plate 22 away from the inner wall of the pot body 2 and installing heating ring 24 vertically at equal intervals, the temperature monitoring is closer to the actual water temperature, the heating is more uniform, and it helps to accurately control the water temperature to a constant temperature state.

[0037] In addition, the outer circumferential wall of the fixing ring 21 is fixed to the inner circumferential wall of the outer cylinder 1 near the top, and the inner circumferential wall of the fixing ring 21 is fixed to the outer circumferential wall of the pot body 2 near the top.

[0038] By connecting the outer wall of the fixing ring 21 to the inner wall of the outer cylinder 1 and the inner wall to the outer wall of the pot body 2 near the top, the pot body 2 is firmly fixed inside the outer cylinder 1, preventing shaking during use and providing reliable structural support for the stable operation of the pot's internal components.

[0039] Furthermore, an insulation sleeve 11 that is adapted to the shape of its inner cavity is installed inside the outer cylinder 1. The thickness of the insulation sleeve 11 is 5mm-12mm, and the top surface of the insulation sleeve 11 is tightly fitted to the bottom surface of the fixing ring 21.

[0040] The thickness of the insulation sleeve 11 is preferably 7mm. By installing the insulation sleeve 11 inside the outer cylinder 1 and attaching the top surface to the bottom surface of the fixing ring 21, the heat of the pot body 2 is not easily lost, the heating energy consumption is reduced, and the energy-saving effect is achieved. At the same time, the water temperature is kept stable and the temperature fluctuation is reduced.

[0041] like Figure 1-2 , Figure 4 , Figures 6-8 As shown, specifically, it also includes: a heat equalization mechanism 3, which is set inside the pot body 2 and is used to equalize the water temperature of each water layer inside the pot body 2. The heat equalization mechanism 3 includes two rotating rods 31 rotatably connected to the pot body 2, two heat equalization rollers 32 coaxially fixed on the top surface of the rotating rods 31 on the same side, several spiral blades 34 fixed on the outer wall of the heat equalization rollers 32 on the same side, several heat equalization rods 33 fixed on the outer wall of the heat equalization rollers 32 on the same side, two pulleys 36 installed on the bottom surface of the pot body 2 and used to drive the two rotating rods 31 to rotate, and a motor 35 installed on the bottom surface of the pot body 2 and used to drive the two pulleys 36 to rotate.

[0042] By setting up a heat equalization mechanism 3, the water inside the pot 2 can be stirred, and the water at the bottom can be lifted upwards, thereby eliminating the temperature difference between the water layers and making the entire water bath more effective.

[0043] It is worth noting that the rotating rod 31 penetrates the bottom surface of the pot body 2 and extends into the interior of the pot body 2 near the bottom end. The two heat-spreading rollers 32 are symmetrical to each other, and several heat-spreading rods 33 and several spiral blades 34 are located inside the pot body 2.

[0044] The rotating rod 31 penetrates the bottom surface of the pot body 2 to the near bottom inside. The two heat-spreading rollers 32 are symmetrical, and the heat-spreading rod 33 and the spiral blade 34 are inside the pot body 2, so that the heat-spreading mechanism 3 can act on the water body in an all-round way, avoid dead zones in temperature uniformity, and improve the uniformity of water temperature inside the pot.

[0045] It is worth noting that several heat-spreading rods 33 located on the same side are installed on the outer circumference of the heat-spreading roller 32 on the same side in a vertical linear and equally spaced arrangement in groups of two. Several spiral blades 34 located on the same side are installed on the outer circumference of the heat-spreading roller 32 on the same side in a vertical linear and equally spaced arrangement in groups of three.

[0046] By arranging the heat-spreading rods 33 in pairs and the spiral blades 34 in groups of three vertically at equal intervals on the same side, the heat-spreading roller 32 can stir the water in layers when it rotates, thereby enhancing the heat exchange between different water layers and further improving the temperature uniformity effect.

[0047] It is worth emphasizing that the heat equalization mechanism 3 also includes an L-shaped plate 38 fixed on the bottom surface of the pot body 2 and located inside the outer cylinder 1, a rotating shaft 39 coaxially fixed on the bottom surface of the rotating rod 31 on the same side and rotatably connected to the horizontal plate end of the L-shaped plate 38, two pulleys 36 are connected by a belt 37 and are coaxially fixed on the outer circumference of the two rotating rods 31 respectively, and a motor 35 is installed on the bottom surface of the horizontal plate end of the L-shaped plate 38 and its output shaft is coaxially connected to the rotating shaft 39.

[0048] The transmission structure of the heat equalization mechanism 3 is stabilized by the L-shaped plate 38, the rotating shaft 39, the belt 37, the drive pulley 36, and the motor 35 connected to the rotating shaft 39. The motor power is efficiently transmitted to the rotating rod 31, ensuring the continuous operation of the heat equalization function.

[0049] It is worth noting that the belt 37 and the two pulleys 36 are both located below the pot body 2 and inside the outer cylinder 1, and the parts of the two rotating rods 31 that contact the pot body 2 are equipped with sealing rings.

[0050] By using belt 37 and pulley 36 located below the pot body 2 and inside the outer cylinder 1, and by providing sealing rings at the contact points between the rotating rod 31 and the pot body 2, the transmission components are protected from external influences, while preventing water leakage from the pot body and ensuring the safety and stability of the device.

[0051] It should be added that several temperature sensors 23, several heating rings 24, and motor 35 are all electrically connected to the external PLC and the external power supply through wires, and the external PLC is also electrically connected to the external power supply through wires.

[0052] Finally, it should be noted that the various temperature sensors 23, heating rings 24, motors 35, and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structures and principles can be obtained by those skilled in the art through technical manuals or conventional experimental methods. In the spare parts of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0053] In practical use, this embodiment includes the following steps:

[0054] 1. Water temperature monitoring stage: The external PLC receives signals from several vertically spaced temperature sensors 23 on the mounting plate 22 in real time, obtains real-time water temperature data of different water layers in the pot body 2, and determines whether the temperature of each water layer meets the set constant temperature standard.

[0055] 2. Heating and temperature control stage: If the temperature of a certain water layer is lower than the standard, the PLC controls the heating ring 24 of the corresponding area on the inner wall of the pot body 2 to start and supplement heat accordingly; when the temperature sensor 23 detects that the water temperature has reached the standard, the PLC controls the corresponding heating ring 24 to turn off, so as to achieve precise temperature control;

[0056] 3. Heat equalization adjustment stage: PLC starts motor 35, motor 35 drives shaft 39, pulley 36 and belt 37 to rotate, so that rotating rod 31 drives heat equalization roller 32 to rotate, heat equalization rod 33 and spiral blade 34 stir water; after temperature sensor 23 detects that the temperature difference between each water layer is eliminated, PLC can adjust the speed of motor 35 or turn off motor 35.

[0057] 4. Energy-saving maintenance stage: The inner insulation jacket 11 of the outer cylinder 1 reduces heat loss. The PLC reduces the starting frequency of the heating ring 24 based on the data from the temperature sensor 23, while maintaining the intermittent operation of the motor 35, thereby reducing energy consumption while ensuring stable water temperature.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An energy-saving electric thermostatic water bath with precise temperature control, comprising an outer cylinder (1), characterized in that, The outer cylinder (1) has a pot body (2) inside, and a fixing ring (21) is fixed between the pot body (2) and the outer cylinder (1). Several heating rings (24) are installed on the inner circumference of the pot body (2) near the bottom. A mounting plate (22) is fixed on the inner circumference of the pot body (2), and several temperature sensors (23) arranged vertically and linearly at equal intervals are installed on the outer wall of the mounting plate (22). The system also includes: The heat equalization mechanism (3) is set inside the pot body (2) and is used to equalize the water temperature of each water layer inside the pot body (2). The heat equalization mechanism (3) includes two rotating rods (31) rotatably connected to the pot body (2), two heat equalization rollers (32) coaxially fixed on the top surface of the rotating rods (31) on the same side, several spiral blades (34) fixed on the outer wall of the heat equalization rollers (32) on the same side, several heat equalization rods (33) fixed on the outer wall of the heat equalization rollers (32) on the same side, two pulleys (36) installed on the bottom surface of the pot body (2) and used to drive the two rotating rods (31) to rotate, and a motor (35) installed on the bottom surface of the pot body (2) and used to drive the two pulleys (36) to rotate.

2. The energy-saving electric thermostatic water bath with precise temperature control according to claim 1, characterized in that: The rotating rod (31) penetrates the bottom surface of the pot body (2) and extends into the pot body (2) near the bottom. The two heat-spreading rollers (32) are symmetrical to each other, and several heat-spreading rods (33) and several spiral blades (34) are located inside the pot body (2).

3. The energy-saving electric thermostatic water bath with precise temperature control according to claim 1, characterized in that: Several heat-spreading rods (33) located on the same side are installed on the outer circumference of the heat-spreading roller (32) on the same side in a vertical linear and equally spaced arrangement in groups of two. Several spiral blades (34) located on the same side are installed on the outer circumference of the heat-spreading roller (32) on the same side in a vertical linear and equally spaced arrangement in groups of three.

4. The energy-saving electric thermostatic water bath with precise temperature control according to claim 1, characterized in that: The heat equalization mechanism (3) also includes an L-shaped plate (38) fixed on the bottom surface of the pot body (2) and located inside the outer cylinder (1), a rotating shaft (39) coaxially fixed on the bottom surface of the rotating rod (31) on the same side and rotatably connected to the horizontal plate end of the L-shaped plate (38), two pulleys (36) are connected by belt (37) and coaxially fixed on the outer circumference of the two rotating rods (31), and the motor (35) is installed on the bottom surface of the horizontal plate end of the L-shaped plate (38) and the output shaft is coaxially connected to the rotating shaft (39).

5. The energy-saving electric thermostatic water bath with precise temperature control according to claim 4, characterized in that: The belt (37) and the two pulleys (36) are both located below the pot body (2) and inside the outer cylinder (1), and the two rotating rods (31) are provided with sealing rings at the parts that contact the pot body (2).

6. The energy-saving electric thermostatic water bath with precise temperature control according to claim 1, characterized in that: The temperature sensor (23) is installed on the side surface of the mounting plate (22) away from the inner circumference of the pot body (2), and several heating rings (24) are installed on the inner circumference of the pot body (2) in a vertically linear and equally spaced manner.

7. The energy-saving electric thermostatic water bath with precise temperature control according to claim 1, characterized in that: The outer circumferential wall of the fixing ring (21) is fixed to the inner circumferential wall of the outer cylinder (1) near the top, and the inner circumferential wall of the fixing ring (21) is fixed to the outer circumferential wall of the pot body (2) near the top.

8. The energy-saving electric thermostatic water bath with precise temperature control according to claim 1, characterized in that: The outer cylinder (1) is fitted with a heat insulation sleeve (11) that is adapted to the shape of its inner cavity. The thickness of the heat insulation sleeve (11) is 5mm-12mm, and the top surface of the heat insulation sleeve (11) is tightly fitted to the bottom surface of the fixing ring (21).

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