Thermostatic bath based on automatic control technology

Abstract

The utility model discloses a thermostatic bath based on self-control technology, which relates to the technical field of thermostatic baths and comprises a shell, a bath body is arranged on one side of the top end of the shell, an annular pipe is fixedly connected to the outer wall of the top of the bath body, liquid outlet pipes penetrate through the two sides of the inner wall of the annular pipe, a serpentine pipe surrounds the outer wall of the bath body, and the serpentine pipe is fixedly connected to the outer wall of the top end of the shell. A water pump is installed in the tank body, a liquid storage cavity is formed in the bottom of the inner side of the tank body, a liquid injection pipe penetrates through one side of the top end of the liquid storage cavity, a first clamping plug covers the top end of the liquid injection pipe, a vertical cylinder penetrates through the middle of the bottom end of the tank body, and a pulling plate movably penetrates through the middle of the vertical cylinder. By arranging a series of structures, impurities in a liquid medium can be cleaned in time, and interference of the impurities on the heat conduction effect of the liquid medium is reduced, so that the temperature difference of new and old liquid media in the tank body is reduced, the fluctuation of the temperature in the tank body is reduced, and the temperature in the tank body is more favorably maintained to be constant.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature bath technology, specifically a constant temperature bath based on automatic control technology. Background Technology

[0002] A thermostatic bath is a tank device that can provide a constant temperature. It is widely used in laboratories of chemistry, biology, physics and other fields. It is especially suitable for laboratories and other places that need to maintain low temperature or normal temperature conditions. The liquid medium is usually water or heat transfer oil, and it is usually equipped with a temperature control system with automatic control technology to meet the temperature environment required for the experiment.

[0003] However, in existing thermostatic baths based on automatic control technology, the heat-conducting liquid medium inside the bath usually remains stationary after being poured into the bath. Besides evaporation after heating, impurities easily accumulate in the liquid medium. If these impurities are not cleaned promptly, the heat conduction effect of the liquid medium can be affected. Furthermore, when adding new liquid medium to the bath, it is usually poured directly into the bath. Since the new liquid medium is typically at room temperature while the liquid medium in the bath is usually heated, there is a significant temperature difference between the two. When the new and old liquid media mix in the bath, there will be large temperature fluctuations, which is detrimental to maintaining a constant temperature within the bath. Utility Model Content

[0004] The purpose of this invention is to provide a constant temperature bath based on automatic control technology to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature bath based on automatic control technology, comprising an outer shell, a tank body formed on one side of the top of the outer shell, an annular tube fixedly connected to the outer wall of the top of the tank body, liquid outlet pipes penetrating both sides of the inner wall of the annular tube, a serpentine tube surrounding the outer wall of the tank body, a water pump installed inside the tank body, a liquid storage chamber formed at the bottom of the inner side of the tank body, an injection pipe penetrating one side of the top of the liquid storage chamber, a first stopper covering the top of the injection pipe, a vertical cylinder penetrating the middle of the bottom of the tank body, a drawer plate movably inserted in the middle of the vertical cylinder, a groove formed at the top of the drawer plate, a filter screen fixedly connected to the bottom of the inner side of the groove, a clamping plate fixedly connected to the end of the drawer plate away from the filter screen, a clamp provided above the tank body, and a heating module provided at the bottom of the tank body.

[0006] Preferably, the outlet pipe extends through the top of the inner side of the tank, and the outlet pipe communicates with the interior of the annular pipe.

[0007] Preferably, the top end of the serpentine tube extends through the bottom end of the annular tube, the bottom end of the serpentine tube is fixedly connected to the output end of the water pump, the input end of the water pump is fixedly connected to a vertical pipe, and the bottom end of the vertical pipe is located at the bottom of the inner side of the liquid storage chamber.

[0008] Preferably, a liquid level sensor is installed on the inner wall of the tank, and the liquid level sensor is electrically connected to the water pump.

[0009] Preferably, a first solenoid valve is installed at the junction of the vertical cylinder and the tank, and the bottom end of the vertical cylinder communicates with the interior of the liquid storage chamber.

[0010] Preferably, a waste liquid pipe extends through the bottom of the liquid storage chamber, a second solenoid valve is installed at the junction of the waste liquid pipe and the liquid storage chamber, and a second plug is provided at the end of the waste liquid pipe.

[0011] Preferably, the filter screen is movably embedded in the vertical cylinder via a drawer.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This thermostatic bath based on automatic control technology uses a vertical cylinder, filter screen, groove, and pull plate to allow the liquid medium in the bath to flow downward into the vertical cylinder after a single use and pass through the filter screen temporarily placed in the vertical cylinder. This allows large particulate impurities in the liquid medium to be filtered in time, and the filter screen can be pulled out through one side of the pull plate for cleaning to ensure the interception effect of the filter screen. This achieves timely cleaning of impurities in the liquid medium and reduces the interference of impurities on the heat conduction effect of the liquid medium.

[0014] 2. This constant temperature bath based on automatic control technology uses a serpentine tube, annular tube, and outlet pipe to allow new liquid medium to be pumped from the storage chamber into the serpentine tube before being added to the bath. The serpentine tube surrounding the outside of the bath can preheat the pumped new liquid medium. At the same time, the preheated new liquid medium can be dispersed by the annular tube and flow out from the outlet pipes on both sides, thereby reducing the temperature difference between the old and new liquid media in the bath, reducing temperature fluctuations in the bath, and making it easier to maintain a constant temperature in the bath. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the liquid storage chamber and serpentine tube structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the annular tube and the liquid outlet tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the drawer plate and filter screen structure of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Clamp; 3. Discharge pipe; 4. Tank; 5. Clamping plate; 6. First clamp; 7. Ring pipe; 8. Liquid level sensor; 9. Serpentine pipe; 10. Pull plate; 11. Heating module; 12. First solenoid valve; 13. Vertical cylinder; 14. Liquid storage chamber; 15. Vertical pipe; 16. Second solenoid valve; 17. Waste liquid pipe; 18. Second clamp; 19. Water pump; 20. Injection pipe; 21. Filter screen; 22. Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4As shown, the constant temperature bath based on automatic control technology in this embodiment includes an outer shell 1. A tank body 4 is provided on one side of the top of the outer shell 1. An annular tube 7 is fixedly connected to the outer wall of the top of the tank body 4. Liquid outlet pipes 3 pass through both sides of the inner wall of the annular tube 7. A serpentine tube 9 surrounds the outer wall of the tank body 4. A water pump 19 is installed inside the tank body 4. A liquid storage chamber 14 is provided at the bottom of the inner side of the tank body 4. A liquid injection pipe 20 passes through one side of the top of the liquid storage chamber 14. A first stopper 6 is provided at the top of the liquid injection pipe 20. A vertical cylinder 13 passes through the middle of the bottom of the tank body 4. A drawer plate 10 is movably inserted in the middle of the vertical cylinder 13. A groove 22 is provided at the top of the drawer plate 10. A filter screen 21 is fixedly connected to the bottom of the inner side of the groove 22. A clamping plate 5 is fixedly connected to the end of the drawer plate 10 away from the filter screen 21. A clamp 2 is provided above the tank body 4. A heating module 11 is provided at the bottom of the tank body 4.

[0024] Specifically, the tank 4 has a cylindrical structure, allowing both the annular tube 7 and the serpentine tube 9 to wrap around its outer wall. The annular tube 7 disperses the new liquid medium, while the outlet tube 3 allows the liquid in the annular tube 7 to be dispersed and replenished into the tank 4, thus facilitating the mixing of the new liquid medium with the liquid medium already in the tank 4. The serpentine tube 9 is made of a material with good thermal conductivity, allowing the new liquid medium entering the serpentine tube 9 to quickly absorb the heat conducted by the serpentine tube 9, thereby preheating the new liquid medium. The storage chamber 14 allows the liquid medium in the tank 4 to be temporarily stored after filtration for later re-entry into the tank 4, and also enables the circulation of the liquid medium within the constant temperature bath. The injection tube 20 replenishes the storage chamber 14 with new liquid medium, ensuring sufficient new liquid medium in the storage chamber 14 to replenish the tank 4. The first stopper 6 maintains the injection... The top of the tube 20 is sealed to prevent contamination of the injection tube 20 and the storage chamber 14. The vertical cylinder 13 allows the liquid medium in the tank 4 to flow into the storage chamber 14, and allows the used liquid medium to pass through the filter screen 21 in the vertical cylinder 13 to remove impurities, thereby reducing the interference of impurities on the heat conduction effect of the liquid medium. The pull plate 10 facilitates the removal of the filter screen 21 from one side of the vertical cylinder 13, which is convenient for cleaning or replacing the filter screen 21. The groove 22 facilitates the deposition of impurities intercepted by the filter screen 21 on the pull plate 10, which is convenient for the subsequent synchronous removal of impurities. The filter screen 21 has a mesh size of 80 mesh, which can filter suspended solids and algae in the liquid medium, thereby cleaning the impurities in the liquid medium. The clamping plate 5 facilitates the removal of the pull plate 10 from one side of the outer shell 1, and also facilitates the positioning of the pull plate 10 inserted into the outer shell 1, which is convenient for the connection between the filter screen 21 on the pull plate 10 and the vertical cylinder 13.

[0025] Furthermore, the liquid outlet pipe 3 extends through the top of the inner side of the tank body 4 and is connected to the interior of the annular pipe 7. The function of the liquid outlet pipe 3 is to allow the new liquid medium in the annular pipe 7 to flow into the tank body 4 from both sides, thereby facilitating the mixing of the new liquid medium with the liquid medium in the tank body 4.

[0026] Furthermore, the top end of the serpentine tube 9 extends through the bottom end of the annular tube 7, and the bottom end of the serpentine tube 9 is fixedly connected to the output end of the water pump 19. The input end of the water pump 19 is fixedly connected to the vertical pipe 15, and the bottom end of the vertical pipe 15 is located at the bottom of the inner side of the liquid storage chamber 14. The function of the water pump 19 is to pump the liquid medium in the liquid storage chamber 14 to the liquid outlet pipe 3, thereby replenishing the liquid medium in the tank 4.

[0027] Furthermore, a liquid level sensor 8 is installed on the inner wall of the tank 4. The liquid level sensor 8 is electrically connected to the water pump 19. The liquid level sensor 8 controls the opening and closing of the water pump 19 through the controller, thereby helping to maintain the liquid level in the tank 4 within the set range.

[0028] Furthermore, a first solenoid valve 12 is installed at the junction of the vertical cylinder 13 and the tank 4. The bottom end of the vertical cylinder 13 is connected to the interior of the liquid storage chamber 14. The function of the first solenoid valve 12 is to control the liquid medium in the tank 4 so that liquid medium can remain inside the tank 4 during use.

[0029] Furthermore, a waste liquid pipe 17 extends through the bottom of the liquid storage chamber 14. A second solenoid valve 16 is installed at the junction of the waste liquid pipe 17 and the liquid storage chamber 14. A second plug 18 is provided at the end of the waste liquid pipe 17. The function of the waste liquid pipe 17 is to discharge the liquid medium that has been stored in the liquid storage chamber 14 for a long time, thereby facilitating the subsequent cleaning of the constant temperature bath.

[0030] Furthermore, the filter screen 21 is movably connected to the vertical cylinder 13 via the pull plate 10, which allows the filter screen 21 to be disassembled, thus facilitating the cleaning and replacement of the filter screen 21.

[0031] The usage method of this embodiment is as follows: When using this thermostatic bath based on automatic control technology, the thermostatic bath can first be connected to an external power supply. When the liquid level sensor 8 in the tank 4 detects that the liquid level is lower than the set value, the controller will control the water pump 19 to start, so that the water pump 19 pumps the new liquid medium in the storage chamber 14 into the serpentine tube 9 through the vertical pipe 15. The new liquid medium flows around the outer wall of the tank 4 along the serpentine tube 9, so that the new liquid medium can absorb the heat emitted by the tank 4, so that the new liquid medium can be preheated before being added to the tank 4. Then the new liquid medium will enter the annular tube 7 and then flow along the annular tube 7 to the outlet. Pipe 3 then flows from the outlet pipe 3 into the tank 4, where it mixes with the liquid medium in the tank 4. After the constant temperature bath has been used once, the first solenoid valve 12 can be opened, allowing the cooled liquid medium in the tank 4 to flow into the vertical cylinder 13 and then through the filter screen 21 set in the middle of the vertical cylinder 13. At this time, impurities in the liquid medium will be intercepted in the groove 22 by the filter screen 21, and the liquid medium will flow into the storage chamber 14 for temporary storage after passing through the filter screen 21. After the liquid medium in the tank 4 is emptied, the card block can be pulled outward, so that the pull plate 10 drives the filter screen 21 to be pulled out from one side of the outer shell 1. Then the filter screen 21 can be cleaned or replaced.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A constant temperature bath based on automatic control technology, comprising an outer shell (1), characterized in that: A groove (4) is provided on one side of the top of the outer shell (1). An annular tube (7) is fixedly connected to the outer wall of the top of the groove (4). Liquid outlet pipes (3) pass through both sides of the inner wall of the annular tube (7). A serpentine tube (9) surrounds the outer wall of the groove (4). A water pump (19) is installed inside the groove (4). A liquid storage chamber (14) is provided at the bottom of the inner side of the groove (4). An injection pipe (20) passes through one side of the top of the liquid storage chamber (14). The top of the injection pipe (20) is covered with a... There is a first stopper (6), a vertical cylinder (13) runs through the middle of the bottom end of the groove (4), a draw plate (10) is movably inserted in the middle of the vertical cylinder (13), a groove (22) is opened at the top of the draw plate (10), a filter screen (21) is fixedly connected to the bottom of the inner side of the groove (22), a clamping plate (5) is fixedly connected to the end of the draw plate (10) away from the filter screen (21), a clamp (2) is provided above the groove (4), and a heating module (11) is provided at the bottom of the groove (4).

2. The constant temperature bath based on automatic control technology according to claim 1, characterized in that: The outlet pipe (3) passes through the top of the inner side of the tank (4), and the outlet pipe (3) communicates with the interior of the annular pipe (7).

3. The constant temperature bath based on automatic control technology according to claim 1, characterized in that: The top end of the serpentine tube (9) passes through the bottom end of the annular tube (7), the bottom end of the serpentine tube (9) is fixedly connected to the output end of the water pump (19), the input end of the water pump (19) is fixedly connected to a vertical tube (15), and the bottom end of the vertical tube (15) is located at the bottom of the inner side of the liquid storage chamber (14).

4. The constant temperature bath based on automatic control technology according to claim 1, characterized in that: A liquid level sensor (8) is installed on the inner wall of the tank (4), and the liquid level sensor (8) is electrically connected to the water pump (19).

5. A constant temperature bath based on automatic control technology according to claim 1, characterized in that: A first solenoid valve (12) is installed at the junction of the vertical cylinder (13) and the tank (4), and the bottom end of the vertical cylinder (13) is connected to the interior of the liquid storage chamber (14).

6. A constant temperature bath based on automatic control technology according to claim 1, characterized in that: The bottom end of the liquid storage chamber (14) is connected to a waste liquid pipe (17), a second solenoid valve (16) is installed at the junction of the waste liquid pipe (17) and the liquid storage chamber (14), and a second plug (18) is provided at the end of the waste liquid pipe (17).

7. A constant temperature bath based on automatic control technology according to claim 1, characterized in that: The filter screen (21) is movably embedded and connected to the vertical cylinder (13) via a drawer plate (10).

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