High-precision high-low temperature all-in-one machine

Abstract

The invention relates to the technical field of temperature control equipment, and discloses a high-precision high-low temperature all-in-one machine which comprises a machine box, a water tank, a refrigerating system, a heater, a circulating pump and a control panel, the refrigerating system comprises a refrigerant liquid storage device, a compressor, a condenser, an expansion valve and an evaporator which are sequentially communicated, and the evaporator is communicated with the liquid storage device; a descaling mechanism is arranged in the water tank and comprises a chemical agent feeding device arranged on the water tank and a mixer arranged in the water tank, and the mixer comprises a stirring rod coaxially and rotatably connected to a top cover of the water tank, a peripheral wall scraping frame connected to the stirring rod and a driving part for driving the stirring rod to rotate; the peripheral wall scraping frame is matched with the inner size of the water tank, and scrapers on the periphery of the peripheral wall scraping frame are obliquely arranged and abut against the inner wall of the water tank. The effect of improving the temperature regulation and control precision of the high-low temperature all-in-one machine is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of temperature control equipment, and in particular to a high-precision high and low temperature integrated machine. Background Art

[0002] A high- and low-temperature all-in-one unit (H&L) is a device that provides both cooling and heating functions. It is widely used in the pharmaceutical, chemical, and laboratory industries, primarily for connecting to reactors to cool and heat reactions. By efficiently utilizing energy, this device achieves energy conservation and emission reduction goals, significantly improving production efficiency and product quality. With the continuous advancement of industrial automation, the demand for temperature control precision is also increasing. Therefore, the development of high-performance H&L units has become an industry trend.

[0003] Existing high and low temperature all-in-one machines usually use water as the circulating medium, and achieve temperature regulation through the refrigeration system and heating system. Specifically, during cooling, the compressor compresses the refrigerant into a high-temperature and high-pressure gas, which then becomes a high-pressure liquid after dissipating heat through the condenser. It is then throttled and reduced in pressure through the expansion valve, enters the evaporator to absorb heat and vaporize, and finally returns to the compressor to complete the cycle. This cycle repeats to achieve the cooling operation of the medium; during heating, electrical energy is converted into thermal energy through components such as heating tubes to increase the temperature of the medium. In addition, the circulating pump is responsible for promoting the flow of the medium between the inside and outside of the equipment to ensure uniform temperature distribution. The control panel accurately controls the operation of the refrigeration or heating system based on the feedback signal from the temperature sensor to maintain the set temperature range.

[0004] However, the water circulation methods commonly used in existing technologies have significant drawbacks. As water in the water tank circulates over time, scale forms. Over time, this scale accumulates in areas such as the water tank outlet, the water pump inlet, the inner walls of the pipes, and the water flow channels of the heat exchanger. This reduces the cross-sectional area of these areas and increases the resistance to water flow. This not only causes the water circulation flow to become unstable, but can even lead to localized water stagnation, resulting in significant differences in water temperature across different areas of the water tank and an inability to form a uniform temperature field. This unevenness can affect the accuracy of the temperature signal collected by the temperature sensor, thereby reducing the precision of temperature control. Summary of the Invention

[0005] In order to improve the temperature control accuracy of a high and low temperature integrated machine, the present application provides a high-precision high and low temperature integrated machine.

[0006] The high-precision high and low temperature all-in-one machine provided in this application adopts the following technical solutions: A high-precision high and low temperature integrated machine, including a chassis, a water tank, a refrigeration system, a heater, a circulation pump and a control panel, the refrigeration system including a refrigerant liquid reservoir, a compressor, a condenser, an expansion valve and an evaporator connected in sequence, the evaporator is connected to the liquid reservoir, a descaling mechanism is provided in the water tank, the descaling mechanism includes a chemical agent delivery device provided on the water tank and a mixer provided in the water tank, the mixer includes a stirring rod coaxially connected to the top cover of the water tank, a peripheral scraping frame connected to the stirring rod and a driving member for driving the stirring rod to rotate, the peripheral scraping frame matches the internal dimensions of the water tank, and the scraper on its periphery is inclined and is arranged to conflict with the inner wall of the water tank.

[0007] By adopting this technical solution, scale can be effectively removed from the water tank, avoiding the increased water flow resistance and uneven temperature distribution caused by scale accumulation. Specifically, the chemical dosing device regularly injects descaling agents into the water tank. The stirring rod in the mixer drives the peripheral scraping frame to rotate, thoroughly mixing the agent with the water. Simultaneously, the scraper moves along the inner wall of the water tank to scrape away attached scale. This not only maintains the cleanliness of the water tank, but also ensures unobstructed water circulation, thereby improving the accuracy and stability of temperature control.

[0008] Optionally, the stirring rod is hollow, and a through hole is provided on the top wall of the water tank to connect to the interior of the stirring rod. The driving member includes a pressing rod inserted into the stirring rod. The pressing rod slides through the through hole and rotates with the stirring rod through a thread.

[0009] By adopting this technical solution, when the water in the water tank is regularly replaced, the water is filled to an appropriate level through the water inlet, improving the water quality and reducing the possibility of scale formation. The agitator rod can be rotated under external control, effectively driving the peripheral scraping frame and its attached scrapers to clean the inner wall of the water tank, preventing scale accumulation that affects water quality and temperature uniformity. Furthermore, the hollow design of the agitator rod facilitates installation and maintenance of internal components, improving the overall reliability and service life of the equipment.

[0010] Optionally, the chemical agent delivery device includes a chemical agent storage tank and a metering cylinder, and the top side walls of the chemical agent storage tank and the metering cylinder are connected. A sealing plate is provided in the chemical agent storage tank for lifting and lowering. A hand-turned rod is provided on the top of the chemical agent storage tank through a threaded rotation, and the bottom end of the hand-turned rod is rotatably connected to the sealing plate. A sealing cover is movably provided at the bottom of the metering cylinder. When the sealing cover is opened, the metering cylinder is connected to the inside of the water tank.

[0011] By employing this technical solution, the chemical dispensing device can precisely control the dosage, ensuring the accuracy of each dose. The interconnecting design between the chemical storage tank and the metering cylinder allows the chemical to flow smoothly into the metering cylinder. A hand-operated lever drives the sealing plate upward, achieving quantitative transfer of the chemical into the metering cylinder. The capping design ensures that the chemical is released from the metering cylinder into the water tank at the appropriate time, effectively preventing leakage or premature dissolution, thereby achieving optimal descaling results and improving the stability of the water circulation system and the accuracy of temperature control.

[0012] Optionally, a guide key is provided on the side wall of the through hole, a guide groove is provided on the shaft body of the pressing rod, and the guide key is located in the guide groove and is slidably engaged with the guide groove.

[0013] By adopting this technical solution, the sliding fit between the guide key and the guide groove effectively prevents the pressing rod from shifting during rotation within the stirring rod, ensuring its stability and reliability. This not only helps improve the efficiency and stability of the descaling mechanism, but also avoids mechanical failures caused by pressing rod shifting, thereby extending the service life of the device.

[0014] Optionally, the cover is hinged at the bottom end of the metering cylinder, and its hinge axis is located on the side away from the pressing rod. A support rod is sleeved on the pressing rod, the rod end of the support rod points to the metering cylinder, and a magnetic block with magnetic repulsion is set between the support rod and the movable side of the cover.

[0015] By adopting this technical solution, the cover is hinged to the bottom end of the metering cylinder, with its hinge axis located on the side away from the push rod, allowing the cover to remain closed under the action of gravity. A support rod mounted on the push rod faces the metering cylinder, and a magnetic block is positioned between the movable side of the cover and the push rod, which repel each other. To open the cover, simply push the push rod to overcome the repulsive force between the magnetic blocks, allowing the cover to open and the medicine to flow smoothly into the water tank. This design not only simplifies the operation process, but also avoids the inconvenience and potential safety hazards caused by manual opening and closing, ensuring the accuracy and safety of medicine delivery.

[0016] Optionally, the driving member further includes an elastic reset member, which is located in the stirring rod and abuts between the bottom end of the pressing rod and the inner bottom wall of the stirring rod.

[0017] By adopting this technical solution, the elastic return element allows the push rod to move downward when subjected to external force, and automatically returns to its original position when the external force is removed. This design not only ensures the normal rotation of the stirring rod but also responds quickly when the stirring force or speed needs to be adjusted, thereby improving the operating stability and flexibility of the mixer. Especially during the descaling process, the elastic return element effectively prevents damage to the equipment due to hard objects, thereby extending its service life.

[0018] Optionally, a plurality of elastic sockets are arranged on the blades of the stirring rod, and a permanent magnet is inserted into each elastic socket.

[0019] By adopting this technical solution, multiple permanent magnets positioned on the blades of the stirring rod enhance the magnetic field strength during stirring, helping to better disperse any tiny particles that may be present in the water, thereby further reducing scale formation. Furthermore, the removable connection between the permanent magnets and the elastic connector facilitates maintenance and replacement, ensuring long-term stable operation of the equipment.

[0020] Optionally, a plurality of temperature control sensors are distributed axially on the rod body of the stirring rod, and the temperature control sensors are electrically connected to the control panel.

[0021] By employing this technical solution, multiple temperature control sensors distributed axially along the agitator shaft can monitor temperature changes at different locations within the water tank in real time, providing more accurate feedback to the control panel. This not only avoids measurement errors caused by localized temperature unevenness but also enables timely adjustments to the operating status of the cooling or heating system, further improving the accuracy and stability of temperature control.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. It effectively removes scale from the water tank, preventing increased water flow resistance and uneven temperature distribution caused by scale accumulation. Specifically, the chemical dosing device regularly injects descaling agents into the water tank. The stirring rod in the mixer drives the peripheral scraping frame to rotate, thoroughly mixing the agent with the water. Simultaneously, the scraper moves along the inner wall of the water tank to scrape off attached scale. This not only maintains the cleanliness of the water tank, but also ensures unobstructed water circulation, thereby improving the accuracy and stability of temperature control. 2. When regularly replacing the water in the water tank, fill the water tank to an appropriate level from the water inlet, then improve the water quality and reduce the possibility of scale formation. The stirring rod can be rotated under external operation, effectively driving the peripheral scraping frame and its scraper to clean the inner wall of the water tank, preventing scale accumulation from affecting water quality and temperature uniformity. In addition, the hollow design of the stirring rod also facilitates the installation and maintenance of internal components, improving the overall reliability and service life of the equipment. 3. The chemical dispensing device precisely controls the dosage, ensuring accurate dosing each time. The interconnecting design between the chemical storage tank and the metering cylinder allows for smooth flow of the chemical into the metering cylinder. A hand-operated lever drives the sealing plate up and down, ensuring quantitative transfer of the chemical into the metering cylinder. The capping design ensures that the chemical is released from the metering cylinder into the water tank at the appropriate time, effectively preventing leakage or premature dissolution, thereby achieving optimal descaling results and improving the stability of the water circulation system and the accuracy of temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram showing the positional relationship between the control panel and the chassis in an embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of the internal structure of the chassis in an embodiment of the present application.

[0026] Figure 4 It is a structural schematic diagram of the water tank in the embodiment of the present application.

[0027] Figure 5 It is a cross-sectional view showing the internal structure of the water tank in the embodiment of the present application.

[0028] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0029] Description of reference numerals: 1. Chassis; 11. Water inlet pipe; 12. Water filling pipe; 13. Drain pipe; 14. Liquid level gauge; 15. Water outlet pipe; 16. Cooling fan; 17. Air inlet window; 2. Water tank; 21. Through hole; 211. Guide key; 3. Refrigeration system; 31. Refrigerant reservoir; 32. Compressor; 33. Condenser; 34. Expansion valve; 35. Evaporator; 4. Heater; 5. Circulation pump; 6. Control panel; 7. Descaling mechanism; 8. Chemical dosing device ;81. Medicine storage tank;811. Visual window;812. Fluid filling hole;813. Sealing plate;814. Hand-turning rod;82. Measuring cylinder;821. Sealing cap;9. Mixer;91. Stirring rod;911. Temperature control sensor;912. Elastic socket;913. Permanent magnet;92. Peripheral scraper frame;93. Driving part;931. Pressing rod;9311. Guide groove;932. Elastic reset part;933. Support rod;9331. Magnetic block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0031] The embodiment of the present application discloses a high-precision high and low temperature integrated machine.

[0032] Reference Figure 1 、 Figure 2 and Figure 3 A high-precision, high-low-temperature all-in-one temperature controller includes a chassis 1, a water tank 2 mounted within the chassis 1, a refrigeration system 3, a heater 4, a circulating pump 5, and a control panel 6. A water inlet pipe 11, a water injection pipe 12, a sewage pipe 13, and a liquid level gauge 14 are installed between the water tank 2 and the chassis 1. A water outlet pipe 15 is also installed on the chassis 1. Control panel 6 utilizes PID logic control technology to control all devices within the chassis 1, resulting in a higher precision, faster response, and more reliable temperature control system.

[0033] Reference Figure 3 The refrigeration system 3 includes a refrigerant reservoir 31, a compressor 32, a condenser 33, an expansion valve 34 and an evaporator 35 assembled in the chassis 1. The refrigerant reservoir 31, the compressor 32, the condenser 33, the expansion valve 34, the evaporator 35 and the refrigerant reservoir 31 are circulated and connected in sequence through pipelines to form a circulation loop for cooling the refrigerant.

[0034] Reference Figure 1 、 Figure 2 and Figure 3 In order to accelerate the cooling speed of the refrigerant by the condenser 33, two cooling fans 16 are installed on the top of the chassis 1 along its length, and air inlet windows 17 are provided on both sides of the condenser 33 on the door of the chassis 1.

[0035] Reference Figure 1 and Figure 2 When cooling operation is required, the water in the water tank 2 first enters the refrigerant reservoir 31 under the push of the circulating pump 5 to exchange heat with the refrigerant, and then enters the external equipment from the water outlet pipe 15 to replace the heat generated by the reaction in the external equipment, and finally enters the water tank 2 from the water inlet pipe 11 to form a closed loop. The water circulates back and forth during the transmission process, thereby achieving rapid cooling of the external equipment reaction.

[0036] Reference Figure 1 and Figure 2 When heating operation is required, the water in the water tank 2 first enters the heater 4 under the push of the circulation pump 5 to increase the temperature, and then enters the external equipment from the water outlet pipe 15 to provide heat for the reaction in the external equipment, and finally enters the water tank 2 from the water inlet pipe 11 to form a closed loop. The water circulates back and forth during the transmission process, thereby achieving rapid heating of the external equipment reaction.

[0037] Reference Figure 4 、 Figure 5 and Figure 6 A descaling mechanism 7 is provided in the water tank 2. The descaling mechanism 7 includes a chemical agent dosing device 8 and a mixer 9. The chemical agent dosing device 8 is fixedly provided on the top wall of the water tank 2. The chemical agent dosing device 8 includes a drug storage tank 81 and a metering cylinder 82. The drug storage tank 81 is fixedly connected to the metering cylinder 82, and a transparent visual window 811 is fixedly provided on the side wall of the drug storage tank 81, and a liquid replenishing hole 812 is provided on the top. The metering cylinder 82 is transparent as a whole and is connected to the top side wall of the drug storage tank 81. A cover 821 is provided at the bottom of the metering cylinder 82. The cover 821 is hinged to the bottom end of the metering cylinder 82, and its hinge axis is located on the side away from the pressing rod 931. The cover 821 remains closed under the action of gravity. When the cover 821 is opened, the metering cylinder 82 is connected to the inside of the water tank 2.

[0038] Reference Figure 4 and Figure 5 A sealing plate 813 is installed within the medicine storage tank 81, slidingly engaging the inner wall of the tank 81. The surrounding area of the sealing plate 813 is tightly attached to the inner wall of the tank 81, preventing leakage of the medicine. A hand lever 814 is threadedly threaded through the top of the tank 81. The bottom end of the hand lever 814 penetrates the interior of the tank 81 and is rotatably connected to the sealing plate 813. To add medicine, simply rotate the hand lever 814, raising the sealing plate 813 and pressing the medicine into the metering cylinder 82.

[0039] Reference Figure 5 The mixer 9 includes a stirring rod 91, a peripheral scraping frame 92 and a driving member 93. The stirring rod 91 is coaxially connected to the top cover of the water tank 2. A plurality of temperature control sensors 911 are axially distributed and installed on the rod body of the stirring rod 91. Each temperature control sensor 911 is electrically connected to the control panel 6.

[0040] Reference Figure 5 , a plurality of elastic sockets 912 are fixedly arranged on the blades of the stirring rod 91. In this embodiment, two elastic sockets 912 are provided on each blade as an example. A permanent magnet 913 is inserted into each elastic socket 912. The permanent magnet 913 is made of neodymium iron boron material and has a strong magnetic field strength and stable magnetism. The elastic socket 912 is a socket made of a flexible rubber material for clamping the permanent magnet 913. When the permanent magnet 913 needs to be replaced, it can be pulled out quickly and conveniently.

[0041] Reference Figure 5 The peripheral scraping frame 92 matches the internal size of the water tank 2 and is coaxially fixed on the stirring rod 91. The scraper on its periphery is inclined and is in conflict with the inner wall of the water tank 2.

[0042] Reference Figure 5 The stirring rod 91 is hollow, and a through hole 21 is opened on the top wall of the water tank 2 to connect to the interior of the stirring rod 91. The driving member 93 includes a pressing rod 931 and an elastic reset member 932. The pressing rod 931 slides through the through hole 21 and is engaged with the stirring rod 91 through a threaded rotation. A guide key 211 is integrally formed on the side wall of the through hole 21, and a guide groove 9311 is opened on the shaft body of the pressing rod 931. The guide key 211 is located in the guide groove 9311 and slides with the guide groove 9311.

[0043] Reference Figure 5 In this embodiment, the elastic return member 932 is a compression spring, which is located inside the stirring rod 91 and abuts between the bottom end of the pressing rod 931 and the inner bottom wall of the stirring rod 91.

[0044] Reference Figure 4 and Figure 6 A support rod 933 is provided on the pressing rod 931 through a threaded sleeve, the rod end of the support rod 933 points to the metering cylinder 82, and a magnetic block 9331 that repel magnets is fixedly provided between the pressing rod 931 and the movable side of the cover 821.

[0045] The implementation principle of a high-precision, high-low temperature all-in-one machine according to the present application is as follows: When the equipment is regularly maintained, the water in the water tank 2 needs to be replaced. First, water is injected into the water tank 2. Then, according to the amount of water injected, the sealing plate 813 is moved upward by rotating the hand-turned lever 814, thereby quantitatively transferring the reagent into the metering cylinder 82. By repeatedly pressing the pressing rod 931, the cover 821 overcomes the repulsive force between the magnetic blocks 9331 and opens, allowing the reagent to flow smoothly into the water tank 2. At the same time, the stirring rod 91 rotates under the drive of the thread, thoroughly mixing the reagent with the water, thereby reducing the formation of scale. The scraper on the peripheral scraping frame 92 also scrapes away scale attached to the inner wall of the water tank 2 due to its rotation, allowing it to react with the reagent in the water, accelerating the dissolution rate of the scale, and thus achieving cleaning of the inner wall of the water tank 2. The multiple permanent magnets 913 on the stirring rod 91 further enhance the magnetic field strength during the stirring process, helping to better disperse the tiny particulate matter that may be present in the water, thereby further reducing the formation of scale.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-precision high-low temperature integrated machine, comprising a chassis (1), a water tank (2), a refrigeration system (3), a heater (4), a circulation pump (5) and a control panel (6), wherein the refrigeration system (3) comprises a refrigerant liquid reservoir (31), a compressor (32), a condenser (33), an expansion valve (34) and an evaporator (35) which are connected in sequence, wherein the evaporator (35) is connected to the liquid reservoir, and is characterized in that A descaling mechanism (7) is provided in the water tank (2), and the descaling mechanism (7) includes a chemical agent feeding device (8) provided on the water tank (2) and a mixer (9) provided in the water tank (2). The mixer (9) includes a stirring rod (91) coaxially connected to the top cover of the water tank (2), a peripheral scraping frame (92) connected to the stirring rod (91), and a driving member (93) for driving the stirring rod (91) to rotate. The peripheral scraping frame (92) matches the internal size of the water tank (2), and the scraper on its periphery is inclined and is arranged to contact the inner wall of the water tank (2).

2. A high-precision high and low temperature integrated machine according to claim 1, characterized in that The stirring rod (91) is hollow, and a through hole (21) is provided on the top wall of the water tank (2) to connect to the interior of the stirring rod (91). The driving member (93) includes a pressing rod (931) inserted into the stirring rod (91). The pressing rod (931) slides through the through hole (21) and is engaged with the stirring rod (91) through a threaded rotation.

3. A high-precision high and low temperature integrated machine according to claim 2, characterized in that The chemical agent delivery device (8) includes a chemical agent storage tank (81) and a metering cylinder (82). The top side walls of the chemical agent storage tank (81) and the metering cylinder (82) are connected. A sealing plate (813) is provided in the chemical agent storage tank (81) for lifting. A hand-turning rod (814) is provided on the top of the chemical agent storage tank (81) through a threaded rotation. The bottom end of the hand-turning rod (814) is rotatably connected to the sealing plate (813). A sealing cover (821) is movably provided on the bottom of the metering cylinder (82). When the sealing cover (821) is opened, the metering cylinder (82) is connected to the inside of the water tank (2).

4. The high-precision high and low temperature integrated machine according to claim 3, characterized in that A guide key (211) is provided on the side wall of the through hole (21), a guide groove (9311) is provided on the shaft of the pressing rod (931), and the guide key (211) is located in the guide groove (9311) and is slidably fitted with the guide groove (9311).

5. The high-precision high and low temperature integrated machine according to claim 4, characterized in that The cover (821) is hinged at the bottom end of the metering cylinder (82), and its hinge axis is located on the side away from the pressing rod (931). A support rod (933) is sleeved on the pressing rod (931). The rod end of the support rod (933) points to the metering cylinder (82), and a magnetic block (9331) with magnetic repulsion is provided between the support rod (933) and the movable side of the cover (821).

6. The high-precision high and low temperature integrated machine according to claim 2, characterized in that The driving member (93) further includes an elastic reset member (932), which is located inside the stirring rod (91) and abuts between the bottom end of the pressing rod (931) and the inner bottom wall of the stirring rod (91).

7. The high-precision high and low temperature integrated machine according to claim 2, characterized in that A plurality of elastic sockets (912) are arranged on the blades of the stirring rod (91), and a permanent magnet (913) is inserted into each elastic socket (912).

8. The high-precision high and low temperature integrated machine according to claim 2, characterized in that A plurality of temperature control sensors (911) are distributed axially on the rod body of the stirring rod (91), and the temperature control sensors (911) are electrically connected to the control panel (6).

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