High-precision laboratory temperature control device
By designing a high-precision laboratory temperature control device, and utilizing a combination of multi-stage coolers and heaters, the problem of large temperature fluctuations in the laboratory was solved, achieving precise temperature control and uniformity, and improving the reliability and efficiency of experiments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU FANMEI INDAL
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-28
AI Technical Summary
The lack of high-precision laboratory temperature control devices in current technology leads to large fluctuations in laboratory temperature, affecting the reliability and repeatability of experimental results.
A high-precision laboratory temperature control device was designed, comprising an air conditioning unit, a main air supply pipe, a diffuser, a silicon controlled rectifier electric heater, and a temperature sensor. It achieves precise temperature control through a combination of multi-stage coolers and heaters, and optimizes temperature uniformity through a reflux system.
It achieves a stable temperature field in the laboratory with temperature fluctuations less than the allowable value, improving the reliability and repeatability of experimental results, and is simple to operate and energy-efficient.
Smart Images
Figure CN224176921U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory temperature control equipment technology, and in particular to a high-precision laboratory temperature control device. Background Technology
[0002] Laboratories are crucial environments for scientific research and experiments. Many experiments and samples are highly sensitive to changes in temperature and humidity. Significant fluctuations in temperature and humidity can lead to sample denaturation, spoilage, or failure. A constant temperature and humidity environment protects the stability and integrity of samples, ensuring that temperature and humidity changes remain within a controllable range, thus guaranteeing reliable results. Furthermore, constant temperature and humidity improves experimental repeatability, a fundamental aspect of scientific research. Reliable results can only be obtained by conducting multiple experiments under identical environmental conditions. A constant temperature and humidity environment ensures consistent temperature and humidity in each experiment, reducing variability and enhancing repeatability. Finally, constant temperature and humidity also improves experimental efficiency. During experiments, a high-precision laboratory temperature control device is required to regulate the laboratory temperature. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-precision laboratory temperature control device to solve the problem of the need for a high-precision laboratory temperature control device to regulate the laboratory temperature.
[0004] In view of this, the present invention provides a high-precision laboratory temperature control device, including an equipment layer and a laboratory room, wherein the equipment layer is located at the top of the laboratory room, and a ventilation mechanism is provided at the top of the equipment layer and the laboratory room.
[0005] The ventilation system includes an air conditioning unit, a main air supply pipe, several branch air supply pipes, a diffuser, a silicon controlled rectifier (SCR) heater, several return plates, and a temperature sensor. The air conditioning unit is fixedly installed inside the equipment layer. The main air supply pipe is fixedly installed at one end of the air outlet of the air conditioning unit. Several branch air supply pipes are fixedly installed on the outer wall of the main air supply pipe. The diffuser is fixedly installed at one end of the branch air supply pipe. The SCR heater is fixedly installed at the air outlet of the diffuser. Several return plates are located at the bottom of the laboratory room. The temperature sensor is fixedly installed on one side of the return plate.
[0006] Optionally, the air conditioning unit is provided with a primary surface cooler, a secondary surface cooler, a primary heater, a tertiary surface cooler, and a secondary heater in sequence.
[0007] Optionally, a blower is fixedly installed inside the air conditioning unit, and the blower is located between the third-stage surface cooler and the second-stage heater.
[0008] Optionally, the diffuser is fixedly installed on the ceiling of the laboratory building.
[0009] Optionally, a number of steel frames are fixedly installed at the bottom of the inner wall of the laboratory room, and a floor is fixedly installed at the top of the steel frames, with the reflux plate fixedly installed on the floor.
[0010] Optionally, a plurality of reflux pipes are fixedly installed at the bottom of the inner wall of the laboratory room. The reflux pipes are located between the floor and the bottom of the inner wall of the laboratory room. A reflux column is fixedly installed on one side of the inner wall of the laboratory room. One end of the reflux pipe extends through the interior of the reflux column to the outside of the laboratory room.
[0011] Optionally, a plurality of return branch pipes are fixedly installed on the outer wall of the return pipe, and one end of each return branch pipe is connected to the air outlet of the corresponding return plate.
[0012] Optionally, a return fan is fixedly installed inside the equipment layer, one end of the return pipe is connected to one end of the air inlet of the return fan, a connecting pipe is fixedly installed at one end of the air outlet of the return fan, and a regulating valve is fixedly installed on the outer wall of the connecting pipe.
[0013] Optionally, an air inlet pipe is fixedly installed at one end of the air inlet of the air conditioning unit, and the connecting pipe is connected to the air inlet pipe.
[0014] Optionally, a solenoid valve is fixedly installed on the air inlet pipe.
[0015] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:
[0016] This utility model discloses a high-precision laboratory temperature control device. By setting up an air supply mechanism, it has the advantages of simple system, easy adjustment, convenient operation, and energy saving when supplying air and controlling temperature. It also establishes a stable and uniform temperature field. By setting a thyristor electric heater on the diffuser, the outlet air temperature can be precisely fine-tuned to ensure that when the airflow reaches the working area, the average temperature of the airflow and the temperature difference of the working area do not exceed the allowable temperature fluctuation value.
[0017] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of a high-precision laboratory temperature control device provided in an embodiment of the present invention;
[0020] Figure 2 Internal diagram of an air conditioning unit for a high-precision laboratory temperature control device provided in an embodiment of this utility model;
[0021] Figure 3 This is a temperature sensor installation diagram for a high-precision laboratory temperature control device provided in one embodiment of the present invention.
[0022] Explanation of reference numerals in the attached diagram: 1. Equipment layer; 2. Air conditioning unit; 3. Primary surface cooler; 4. Secondary surface cooler; 5. Tertiary surface cooler; 6. Primary heater; 601. Secondary heater; 7. Supply fan; 8. Main supply air pipe; 9. Branch supply air pipe; 10. Diffuser; 101. Thyristor electric heater; 11. Laboratory building; 12. Steel frame; 13. Floor; 14. Return plate; 15. Temperature sensor; 16. Return column; 161. Return pipe; 17. Return fan; 18. Connecting pipe; 19. Regulating valve; 20. Solenoid valve; 21. Inlet duct. Detailed Implementation
[0023] 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.
[0024] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0026] A high-precision laboratory temperature control device according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.
[0027] Example
[0028] For easier understanding, please refer to Figures 1 to 3 The system includes an equipment layer 1 and a laboratory building 11. The equipment layer 1 is located on top of the laboratory building 11. Ventilation mechanisms are installed at the top of both the equipment layer 1 and the laboratory building 11. The ventilation mechanisms include an air conditioning unit 2, a main air supply pipe 8, several branch air supply pipes 9, a diffuser 10, a silicon controlled rectifier heater 101, several return plates 14, and a temperature sensor 15. The air conditioning unit 2 is fixedly installed inside the equipment layer 1. The main air supply pipe 8 is fixedly installed at one end of the air outlet of the air conditioning unit 2. Several branch air supply pipes 9 are fixedly installed on the outer wall of the main air supply pipe 8. The diffuser 10 is fixedly installed at one end of the branch air supply pipes 9. The silicon controlled rectifier heater 101 is fixedly installed at the air outlet of the diffuser 10. Several return plates 14 are located at the bottom of the laboratory building 11. The temperature sensor 15 is fixedly installed on one side of the return plate 14.
[0029] It should be noted that by setting up the air supply mechanism, the air supply and temperature control system has advantages such as simplicity, ease of adjustment, convenient operation, and energy saving. It also establishes a stable and uniform temperature field. By setting a silicon controlled rectifier electric heater 101 on the diffuser 10, the outlet air temperature can be precisely fine-tuned to ensure that when the airflow reaches the working area, the average temperature difference between the airflow and the working area does not exceed the allowable temperature fluctuation value. By setting up a first-stage surface cooler 3, a second-stage surface cooler 4, and a third-stage surface cooler 5, each set to a fixed temperature range, the intake air is cooled. The first-stage heater 6 and the second-stage heater 601, set to a fixed temperature range, heat up the cooled air, making the temperature control more precise.
[0030] In some embodiments, the air conditioning unit 2 is provided with a primary surface cooler 3, a secondary surface cooler 4, a primary heater 6, a tertiary surface cooler 5, and a secondary heater 601 in sequence inside the air conditioning unit 2. A supply fan 7 is fixedly installed inside the air conditioning unit 2, and the supply fan 7 is located between the tertiary surface cooler 5 and the secondary heater 601.
[0031] It should be noted that both the primary surface cooler 3 and the secondary surface cooler 4 use 2-7℃ ethylene glycol aqueous solution to cool the air temperature from 27.4-20.3℃ to 8.5-8℃ and then to 6-5.5℃, so that the outlet air temperature is controlled at 6±1℃.
[0032] In this example, the primary surface cooler 3, the secondary surface cooler 4, and the tertiary surface cooler 5 are composed of multiple rows of copper tubes and aluminum fins, and low-temperature refrigerant is circulated inside to cool the air flowing through them.
[0033] In this example, by setting up the air supply fan 7, the air conditioning unit 2 is used to extract air.
[0034] In some embodiments, the diffuser 10 is fixedly installed on the ceiling of the laboratory room 11.
[0035] In this example, diffuser 10 is an orifice plate used for uniform air supply.
[0036] In this example, the primary heater 6 and the secondary heater 601 are stepless thyristor electric heaters with a heating capacity of 20 kW. The tertiary surface cooler uses 12-17℃ chilled water to cool the air temperature from 20.7-13.2℃ to 18.6-12.4℃, and controls the outlet air temperature to 19±1℃.
[0037] In some embodiments, a plurality of steel frames 12 are fixedly installed at the bottom of the inner wall of the laboratory room 11, a floor 13 is fixedly installed at the top of the steel frames 12, a return plate 14 is fixedly installed on the floor 13, a plurality of return pipes 161 are fixedly installed at the bottom of the inner wall of the laboratory room 11, the return pipes 161 are located between the floor 13 and the bottom of the inner wall of the laboratory room 11, a return column 16 is fixedly installed on one side of the inner wall of the laboratory room 11, one end of the return pipe 161 extends through the interior of the return column 16 to the outside of the laboratory room 11, a plurality of return branch pipes are fixedly installed on the outer wall of the return pipe 161, and one end of the return branch pipe is connected to the air outlet of the corresponding return plate 14.
[0038] It should be noted that a floor 13 with an open bottom is used, and a return plate 14 at the floor 13 is used for return air. The return air is drawn by the return fan 17 and delivered to the outside of the laboratory room 11 through the return pipe 161 for ventilation.
[0039] In this example, the temperature of the recirculated air is detected by the temperature sensor 15 in the recirculation plate 14, making the indoor temperature detection more accurate.
[0040] In some embodiments, a return fan 17 is fixedly installed inside the equipment layer 1. One end of the return pipe 161 is connected to one end of the air inlet of the return fan 17. A connecting pipe 18 is fixedly installed at one end of the air outlet of the return fan 17. A regulating valve 19 is fixedly installed on the outer wall of the connecting pipe 18. An air inlet pipe 21 is fixedly installed at one end of the air inlet of the air conditioning unit 2. The connecting pipe 18 is connected to the air inlet pipe 21. A solenoid valve 20 is fixedly installed on the air inlet pipe 21 to regulate the air volume.
[0041] In this example, the connecting pipe 18 is connected to the air inlet pipe 21, and each can be adjusted by a valve so that the returning air can re-enter the air conditioning unit 2 and mix with the newly drawn air, thus reducing the burden of temperature control.
[0042] Working principle: When the air supply fan 7 is started, air is introduced. Both the primary surface cooler 3 and the secondary surface cooler 4 use 2-7℃ ethylene glycol aqueous solution to cool the air temperature from 27.4-20.3℃ to 8.5-8℃ and then to 6-5.5℃, so that the outlet air temperature is controlled at 6±1℃. The silicon controlled rectifier electric heater 101 is started to finely adjust the air supply temperature. Then, the air is introduced into the laboratory room 11 through the diffuser 10.
[0043] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A high-precision laboratory temperature control device, characterized in that, It includes an equipment layer (1) and a laboratory room (11), the equipment layer (1) being located on top of the laboratory room (11), and ventilation mechanisms being provided at the top of the equipment layer (1) and the laboratory room (11); The ventilation system includes an air conditioning unit (2), a main air supply pipe (8), several branch air supply pipes (9), a diffuser (10), a silicon controlled rectifier heater (101), several return plates (14) and a temperature sensor (15). The air conditioning unit (2) is fixedly installed inside the equipment layer (1). The main air supply pipe (8) is fixedly installed at one end of the air outlet of the air conditioning unit (2). Several branch air supply pipes (9) are fixedly installed on the outer wall of the main air supply pipe (8). The diffuser (10) is fixedly installed at one end of the branch air supply pipe (9). The silicon controlled rectifier heater (101) is fixedly installed at the air outlet of the diffuser (10). Several return plates (14) are set at the bottom of the laboratory room body (11). The temperature sensor (15) is fixedly installed on one side of the return plate (14).
2. The high-precision laboratory temperature control device according to claim 1, characterized in that, The air conditioning unit (2) is equipped with a primary surface cooler (3), a secondary surface cooler (4), a primary heater (6), a tertiary surface cooler (5), and a secondary heater (601) in sequence.
3. The high-precision laboratory temperature control device according to claim 2, characterized in that, The air conditioning unit (2) is equipped with a blower (7) which is located between the third-stage surface cooler (5) and the second-stage heater (601).
4. The high-precision laboratory temperature control device according to claim 1, characterized in that, The diffuser (10) is fixedly installed on the ceiling of the laboratory building (11).
5. A high-precision laboratory temperature control device according to claim 1, characterized in that, Several steel frames (12) are fixedly installed at the bottom of the inner wall of the laboratory room (11), and a floor (13) is fixedly installed at the top of the steel frames (12). The reflux plate (14) is fixedly installed on the floor (13).
6. A high-precision laboratory temperature control device according to claim 5, characterized in that, A plurality of return pipes (161) are fixedly installed at the bottom of the inner wall of the laboratory room (11). The return pipes (161) are located between the floor (13) and the bottom of the inner wall of the laboratory room (11). A return column (16) is fixedly installed on one side of the inner wall of the laboratory room (11). One end of the return pipe (161) extends through the interior of the return column (16) to the outside of the laboratory room (11).
7. A high-precision laboratory temperature control device according to claim 6, characterized in that, A number of return branch pipes are fixedly installed on the outer wall of the return pipe (161), and one end of the return branch pipe is connected to the air outlet of the corresponding return plate (14).
8. A high-precision laboratory temperature control device according to claim 6, characterized in that, A return fan (17) is fixedly installed inside the equipment layer (1). One end of the return pipe (161) is connected to one end of the air inlet of the return fan (17). A connecting pipe (18) is fixedly installed at one end of the air outlet of the return fan (17). A regulating valve (19) is fixedly installed on the outer wall of the connecting pipe (18).
9. A high-precision laboratory temperature control device according to claim 8, characterized in that, An air inlet pipe (21) is fixedly installed at one end of the air inlet of the air conditioning unit (2), and the connecting pipe (18) is connected to the air inlet pipe (21).
10. A high-precision laboratory temperature control device according to claim 9, characterized in that, A solenoid valve (20) is fixedly installed on the air inlet pipe (21).