A centrifugal concentration vacuum drying device and drying system

Abstract

The invention discloses a centrifugal concentration vacuum drying device and a drying system, comprising a concentrator, wherein a centrifugal chamber is provided at the center of the interior of the concentrator, an exhaust port is provided on one side of the concentrator, an operation panel is installed on the outer side of the concentrator, a cover opening assembly is installed on one side of the concentrator, a heat-conducting cylinder is movably connected in the centrifugal chamber of the concentrator, the outer wall of the heat-conducting cylinder is tightly fitted with the inner wall of the concentrator, a plurality of corresponding through holes are provided on the inner wall of the heat-conducting cylinder, a rotating shaft is installed at the bottom of the concentrator, a water pipe is movably connected to one side of the concentrator, a three-way pipe is movably connected to one side of the concentrator, and a vacuum pump is movably connected to the other side of the concentrator. The device solves the problem of uneven and insufficient heating that often occurs in the current heating method of the concentrator, thereby reducing the drying efficiency of the sample, and can achieve the effect of waste heat recovery, thereby greatly reducing energy consumption.

Description

Technical Field

[0001] The invention belongs to the technical field of vacuum drying equipment, and in particular relates to a centrifugal concentration vacuum drying device and a drying system. Background Art

[0002] With the continuous advancement of science and technology and the process of industrialization, more and more industries are beginning to pursue efficient, energy-saving and environmentally friendly production methods. Centrifugal concentration vacuum drying devices have gradually become indispensable key equipment in the fields of pharmaceuticals, chemicals, food, etc. The popularization of these advanced equipment has not only significantly improved the efficiency and quality of product drying, but also greatly reduced energy consumption and emissions, injecting new vitality into the sustainable development of enterprises. Centrifugal concentration vacuum drying devices can quickly remove moisture or other solvents from samples through their unique centrifugal action and efficient heat and mass transfer in a vacuum environment, while maintaining the original ingredients and activity of the product, meeting the market's strict requirements for high-quality products.

[0003] The heating method used by the concentrator often results in uneven and insufficient heating, resulting in significant temperature differences in different areas. This uneven temperature distribution will directly affect the heating effect of the sample. For this reason, many efficient heating technologies have been developed, but these heating methods are relatively expensive in order to avoid direct contact between high-temperature heat sources and samples and reduce the risk of fire and explosion. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0004] The purpose of the present invention is to provide a centrifugal concentration vacuum drying device and a drying system for the existing devices to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a centrifugal concentration vacuum drying device, comprising a concentrator, a centrifugal chamber is provided in the center of the concentrator, an exhaust port is provided on one side of the concentrator, an operation panel is installed on the outside of the concentrator, a cover opening assembly is installed on one side of the concentrator, a heat-conducting cylinder is movably connected in the centrifugal chamber of the concentrator, the outer wall of the heat-conducting cylinder is tightly fitted with the inner wall of the concentrator, a plurality of corresponding through holes are provided on the inner wall of the heat-conducting cylinder, and a rotating shaft is installed at the bottom of the concentrator;

[0006] A rotor plate is installed on the outer side of the rotating shaft, and a plurality of centrifuge tube holes are evenly spaced on the rotor plate. A water tank 1 is connected to the interior of the concentrator. A water pipe is movably connected to one side of the concentrator. A tee is movably connected to one side of the concentrator. The tee includes a single pipe opening on one side and a double pipe opening on the other side. One side of the concentrator is connected to the single pipe opening side of the tee. A steam flow meter is installed in the single pipe opening connected to the concentrator and the tee. The double pipe opening sides of the tee are both connected to a steam generating device to connect different generators in the steam generating device. A vacuum pump is movably connected to the other side of the concentrator.

[0007] A centrifuge tube is installed in the centrifuge tube hole opened on the rotor plate, an elastic clamping block is welded on the cover of the centrifuge tube, and a through hole is opened on the tube body of the centrifuge tube.

[0008] According to the above technical solution, an installation groove 1 is opened in the center of the interior of the concentrator, a water outlet pipe is passed through the inner wall of one side of the concentrator, an electrically controlled water outlet valve is installed on the water outlet pipe, a symmetrical connecting groove is opened in the center of the interior of the concentrator, and an ejection plate is installed on the side wall of the installation groove 1.

[0009] According to the above technical solution, a telescopic spring is welded to the inner wall of the connecting groove, and a clamping block is welded to the end of the telescopic spring.

[0010] According to the above technical solution, the cover opening assembly includes a connecting ring, the cover opening assembly includes a connecting ring, a rotating rod is passed through the center of the connecting ring, the cover opening assembly also includes a first connecting rod, a second connecting rod and a driving rod, one end of the rotating rod is fixed to the first end of the first connecting rod, the second end of the first connecting rod is connected to the first end of the second connecting rod, the second end of the second connecting rod is movably connected to the first end of the driving rod, the second end of the driving rod is movably connected to a slider, a slide is installed on one side of the concentrator, the slider is slidably connected to the slide, and a cover plate is connected to the rotating rod.

[0011] According to the above technical solution, a water outlet hole is opened on one side of the heat-conducting tube, two symmetrical connecting blocks are welded on the bottom of the heat-conducting tube, a connecting hole is opened in the center of the bottom of the heat-conducting tube, a water inlet hole is opened on one side of the heat-conducting tube, and a sleeve rod is welded above the connecting hole.

[0012] According to the above technical solution, the outer side of the rotating shaft is movably connected to the sleeve rod, and the outer side of the sleeve rod is welded to the rotor plate.

[0013] According to the above technical solution, a water tank cover is installed on the top of the water tank one, a mounting groove two is opened on one side of the water tank one, a connecting port is opened on the mounting groove two, and an electrically controlled water inlet valve is installed at the connecting port.

[0014] According to the above technical solution, one end of the water pipe is connected to a rubber hose, the water pipe is connected to the electric-controlled water inlet valve, and the other end of the water pipe is connected to the water inlet hole.

[0015] According to the above technical solution, the steam generating device includes steam generator 1 and steam generator 2, the upper pipeline of steam generator 1 is connected to electric control valve 1, the upper pipeline of steam generator 2 is connected to electric control valve 2, and the upper pipeline of steam generator 1 is connected to water tank 2.

[0016] According to the above technical solution, the centrifugal concentration vacuum drying device includes a centrifugal concentration vacuum drying system, the centrifugal concentration vacuum drying system includes a processing module and a detection module, the processing module includes a vacuum submodule, a centrifugal submodule, and a heating submodule, the heating submodule includes a water bath heating unit and a steam heating unit, the vacuum submodule is electrically connected to the vacuum pump, the centrifugal submodule is electrically connected to the concentrator, the water bath heating unit is electrically connected to the electrically controlled water inlet valve, and the steam heating unit is electrically connected to the steam generating device;

[0017] The detection module includes a temperature detection submodule, a water level sensor submodule, and a weighing sensor submodule. The temperature detection submodule is electrically connected to the concentrator, the water level sensor submodule is electrically connected to the concentrator, and the weighing sensor submodule is installed below a water tank installation location.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0019] (1) A cover opening assembly is provided to automatically open and close the cover of the concentrator, and the opening and closing speed is adjusted to avoid a part of the steam remaining inside the concentrator after drying is completed, which may cause burns to the operator when opening the cover;

[0020] (2) The heat-conducting cylinder is provided to make the drying container inside the concentrator detachable, thereby assisting the rapid and comprehensive cooling or heating effect of the concentrator, ensuring the efficient transfer of heat energy and accelerating the evaporation of water in the sample;

[0021] (3) By setting up a heating submodule that matches a water bath with steam, the higher specific latent heat of water is utilized to achieve heat exchange by wrapping water vapor around the outside of the container. This method has the largest heat transfer area, high heat exchange rate, and fast concentration speed. At the same time, it can be combined with a water bath heating method to further improve the uniformity and stability of heating;

[0022] (4) By providing a centrifuge tube closed with an elastic member, the centrifuge tube can be opened and closed automatically in cooperation with the ejection plate in the concentrator, thereby preventing the sample from being spilled during operation and reducing the contamination of the sample. The automatically opened centrifuge tube can also realize vacuum extraction, thereby improving the drying efficiency of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a concentrator of an embodiment of the present invention when it is closed;

[0026] Figure 3 is a schematic diagram of the interior of a concentrator according to an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of a cover opening assembly according to an embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of a heat-conducting tube according to an embodiment of the present invention;

[0029] Figure 6 is a schematic diagram of a water tank according to an embodiment of the present invention;

[0030] Figure 7 is a schematic diagram of the interior of a mounting slot 1 according to an embodiment of the present invention;

[0031] Figure 8 The embodiment of the present invention Figure 7 The enlarged schematic diagram of point A in the middle;

[0032] Fig. 9 The embodiment of the present invention Figure 2 The enlarged schematic diagram of point B in the middle;

[0033] Fig.10 is a schematic diagram of a centrifuge tube according to an embodiment of the present invention;

[0034] Fig.11 The embodiment of the present invention Fig.10 The enlarged schematic diagram of the center C;

[0035] Fig.12 is a schematic diagram of a drying pipeline in an embodiment of the present invention;

[0036] Fig.13 is a schematic diagram of a drying system according to an embodiment of the present invention;

[0037] In the figure: 1. concentrator; 11. electric control water outlet valve; 12. installation slot 1; 13. water outlet pipe; 14. connecting slot; 141. telescopic spring; 142. clamping block; 2. operation panel; 3. cover opening assembly; 31. connecting ring; 32. rotating rod; 33. first connecting rod; 34. second connecting rod; 35. driving rod; 36. slider; 37. slideway; 38. cover plate; 4. heat transfer tube; 41. water outlet hole; 42. connecting block; 43. connecting hole; 44. water inlet hole; 45. sleeve rod ; 5. Rotating shaft; 6. Rotor plate; 7. Water tank one; 71. Water tank cover; 72. Mounting slot two; 73. Connecting port; 74. Electric water inlet valve; 8. Water pipe; 81. Rubber hose; 9. Tee pipe; 10. Steam generating device; 101. Water tank two; 102. Steam generator one; 103. Electric valve one; 104. Steam generator two; 105. Electric valve two; 15. Vacuum pump; 16. Centrifuge tube; 161. Elastic block; 162. Perforation; 17. Ejection plate. DETAILED DESCRIPTION

[0038] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The embodiment of the present invention provides a centrifugal concentration vacuum drying device and a drying system. Figure 1 Schematic diagram of the structure of a centrifugal concentration vacuum drying device according to an embodiment of the present invention. Figure 1 , 2 As shown, the centrifugal concentration vacuum drying device includes a concentrator 1, a centrifugal chamber is opened in the center of the interior of the concentrator 1, an exhaust port is opened on one side of the concentrator 1, an operation panel 2 is installed on the outside of the concentrator 1, a cover opening assembly 3 is installed on the top of the concentrator 1, a heat-conducting cylinder 4 is movably connected in the centrifugal chamber of the concentrator 1, and the outer wall of the heat-conducting cylinder 4 is tightly fitted with the inner wall of the concentrator 1, a plurality of corresponding through holes are opened on the inner wall of the heat-conducting cylinder 4, and a rotating shaft 5 is installed at the bottom of the concentrator 1.

[0040] A rotor plate 6 is installed on the outer side of the rotating shaft 5, and a plurality of centrifugal tube holes are evenly spaced on the rotor plate 6. A water tank 7 is connected to the inside of the concentrator 1. A water pipe 8 is movably connected to one side of the concentrator 1. A tee 9 is movably connected to one side of the concentrator 1. The tee 9 includes a single pipe opening on one side and a double pipe opening on the other side. One side of the concentrator 1 is connected to the single pipe opening side of the tee 9. A steam flow meter is installed in the single pipe opening of the concentrator 1 connected to the tee 9. Both pipes on the double pipe opening side of the tee 9 are connected to a steam generator 10 to connect different generators in the steam generator 10. The steam generated by the steam generator 10 will be introduced into the centrifugal chamber of the concentrator 1 through the tee 9. A vacuum pump 15 is movably connected to the other side of the concentrator 1. The vacuum pump 15 is connected to the centrifugal chamber in the concentrator 1 to adjust the vacuum degree in the centrifugal chamber. While the steam generating device 10 passes the steam into the centrifugal chamber of the concentrator 1 through the three-way pipe 9 , the vacuum pump 15 performs a vacuum operation on the interior of the concentrator 1 .

[0041] A centrifuge tube 16 is installed in the centrifuge tube hole opened on the rotor plate 6 to place the sample to be dried, and an elastic block 161 is welded on the cover of the centrifuge tube 16. A through hole 162 is opened on the tube body of the centrifuge tube 16. When closing the centrifuge tube 16, it is necessary to press the elastic block 161 and cover the centrifuge tube 16 cover at the same time, until the elastic block 161 passes through the through hole 162 to complete the closing of the centrifuge tube 16. In order to facilitate the subsequent opening of the centrifuge tube 16, when the centrifuge tube 16 is placed on the rotor plate 6, the side where the elastic block 161 on the centrifuge tube 16 is located needs to be placed in a straight line direction from the center of the centrifugal chamber in the concentrator 1 to the outside, so that the centrifuge tube 16 is placed at a certain angle, so as to generate centrifugal force under high speed conditions, reduce the situation where the sample will not overflow from the centrifuge tube 16, and at the same time, choose a suitable speed to avoid unnecessary mechanical damage to the solute.

[0042] Among them, the concentrator 1, the exhaust port, the operation panel 2, the cover opening assembly 3, the steam flow meter, the steam generating device 10, and the vacuum pump 15 are all electrically connected to the drying system.

[0043] The centrifuge tube 16 containing a suitable amount of sample to be dried is placed on the rotor plate 6. Since the shape and size of the holes on the rotor plate 6 match those of the centrifuge tube 16, the centrifuge tube 16 can be firmly inserted and fixed on the rotor plate 6. The cover opening assembly 3 is driven to close the concentrator 1. The concentrator 1 is started by the operation panel 2. The rotating shaft 5 drives the centrifuge tube 16 on the rotor plate 6 to rotate. The sample is pushed to the periphery by the centrifugal force. The solvent and the solute will show different behaviors under the action of the centrifugal force due to differences in density, molecular weight, solubility, surface tension and physical state. Therefore, the solute will not be centrifuged to the periphery together, but will remain at the bottom of the centrifuge tube 16, thereby ensuring that the solvent is effectively separated. In addition, a heater is provided at the inner bottom of the concentrator 1 to heat the centrifuge chamber. The water in the water tank 7 is passed into the heat-conducting cylinder 4. The water passed from the water tank 7 to the heat-conducting cylinder 4 is heated by the heating function of the concentrator 1, so that the sample in the centrifuge tube 16 is heated by a water bath. At the same time, the steam generated by the steam generating device 10 is introduced into the concentrator 1 through the three-way pipe 9, and then enters the interior of the heat-conducting cylinder 4, so that the steam contacts the outer wall of the centrifugal tube 16 to heat the sample. The heat generated by the water bath is diffused through the heat-conducting cylinder 4, so that the heat inside the concentrator 1 is evenly distributed, thereby improving the heating efficiency of the sample, ensuring that the sample is fully and fully heated, and greatly improving the drying efficiency of the concentrator 1. At the same time, when the concentrator 1 starts working, in order to avoid the overflow of the sample in the centrifugal tube 16 due to improper operation, the centrifugal tube 16 is selected to be closed and then placed, and the vacuum pump 15 will be started first. Since the vacuum pump 15 is connected to the centrifugal chamber through a pipeline, a closed exhaust system is formed at this time. When the vacuum pump 15 starts working, it will start to extract the air in the centrifugal drying chamber, including the gas in the centrifugal tube 16 in the open state. By adjusting the speed and valve opening of the vacuum pump 15, the optimal vacuuming rate can be achieved to ensure that the solvent escapes from the sample evenly while reducing the boiling point, and reduce the boiling point of the solvent to make it evaporate quickly. After drying is completed, the system will automatically stop heating, vacuuming and centrifugal operations, the water used in the water bath will be discharged through the electrically controlled water outlet valve 11, and the lid opening component 3 will automatically open. Finally, after ensuring that the degree of drying of the sample meets the experimental or production requirements, the dried sample will be transported to the next processing link.

[0044] In certain preferred embodiments, Figure 3As shown, a mounting groove 12 is provided in the center of the concentrator 1, a water outlet pipe 13 is provided on the inner wall of one side of the concentrator 1, and an electric-controlled water outlet valve 11 is installed on the water outlet pipe 13. A symmetrical connection groove 14 is provided in the center of the concentrator 1, and a push plate 17 is installed on the side wall of the mounting groove 12. The push plate 17 is a "U"-shaped plate with a protrusion welded in the center of the inner side. The push plate 17 is extended by the electric push rod in the concentrator 1, and the electric push rod is connected to the drying system signal. Figure 7 As shown, the mounting groove 12 is used to set the heat-conducting tube 4, and is fixedly connected through the connecting groove 14. The heat-conducting tube 4 is detachably installed, and the use of the heat-conducting tube 4 with different parameters can be selected according to the specific situation. At the same time, the detachable design can realize the replacement of the heat-conducting tube 4 to prevent the quality of the heat-conducting tube 4 from affecting the drying efficiency of the concentrator 1. The water outlet pipe 13 is made of rubber. When the heat-conducting tube 4 is placed in the mounting groove 12, the water outlet pipe 13 is aligned with the corresponding hole on the heat-conducting tube 4 and then inserted into the water outlet hole 41 to achieve positioning, such as Figure 9-11 As shown, after the sample in the centrifuge tube 16 is centrifuged, since the centrifuge tube 16 is placed at an angle, there is a certain friction between the rotor plate 6 and the centrifuge tube 16, so that the centrifuge tube 16 will not be moved when the push plate 17 is driven to extend and contacts the tube mouth of the centrifuge tube 16. The rotor plate 6 controls the intermittent rotation of the centrifuge tube 16, and the protrusions on the push plate 17 are aligned with the elastic card block 161 in turn to press it, thereby cooperating with the push plate 17 to open the centrifuge tube 16. It should be noted that since the centrifuge tube holes on the rotor plate 6 are arranged at intervals, the push plate 17 can push out and open all the centrifuge tubes 16 on the rotor plate 6.

[0045] In certain preferred embodiments, Figure 8 As shown, a telescopic spring 141 is welded to the inner wall of the connecting groove 14 , and a clamping block 142 is welded to the end of the telescopic spring 141 . The elastic displacement of the clamping block 142 can be achieved through the telescopic spring 141 , so that the clamping block 142 can elastically connect and fix the object placed in the connecting groove 14 .

[0046] In certain preferred embodiments, Figure 4As shown, the cover opening assembly 3 includes a connecting ring 31, and a rotating rod 32 is penetrated in the center of the connecting ring 31. The cover opening assembly 3 also includes a first connecting rod 33, a second connecting rod 34 and a driving rod 35, one end of the rotating rod 32 is fixed to the first end of the first connecting rod 33, the second end of the first connecting rod 33 is connected to the first end of the second connecting rod 34, the second end of the second connecting rod 34 is movably connected to the first end of the driving rod 35, and the second end of the driving rod 35 is movably connected to a slider 36, a slide 37 is installed on one side of the concentrator 1, and the slider 36 is slidably connected to the slide 37, and a cover plate 38 is connected to the rotating rod 32. The slider 36 is made of magnetic material, and an electromagnetic coil is arranged inside the slide 37. A power module is installed in the concentrator 1. When current is passed through the electromagnetic coil through the power module, a magnetic field will be generated in the slide 37. The power module is electrically connected to the drying system. The power module will provide a current in the range i to I, thereby driving the slider 36 to move in the slide 37. After the slider 36 moves in the slide 37, it will drive the driving rod 35 to move, so that the driving rod 35 pulls the second connecting rod 34, so that the first connecting rod 33 rotates around the rotating rod 32, thereby controlling the opening and closing of the cover 38 and its opening and closing speed.

[0047] In some optional embodiments, after the centrifuge tube 16 containing the sample is placed on the rotor plate 6, the cover opening assembly 3 is driven to close through the operation panel 2. At this time, a large current is passed through the electromagnetic coil to drive the slider 36 to move quickly in the slide 37, so as to achieve the effect of quickly closing the cover 38. After the concentrator 1 completes the sample drying, the cover opening assembly 3 is driven to open through the operation panel 2. At this time, a small current is passed through the electromagnetic coil to drive the slider 36 to move slowly in the slide 37 to open the cover 38, thereby achieving the effect of slow opening of the cover. This avoids the heat that has not been released in time when the cover is opened after the concentrator 1 completes the drying task, and is quickly released from the gap at the opening of the cover of the concentrator 1, causing surrounding operators to be injured by high temperature. After the concentrator 1 stops rotating, the internal pressure will be gradually released. The slow opening of the cover can effectively avoid solvent splashing or sample spraying caused by instantaneous opening of the cover, thereby protecting the operator from potential injury.

[0048] In certain preferred embodiments, Figure 5As shown, a water outlet hole 41 is provided on one side of the heat-conducting tube 4, two symmetrical connecting blocks 42 are welded to the bottom of the heat-conducting tube 4, a connecting hole 43 is provided in the center of the bottom of the heat-conducting tube 4, a water inlet hole 44 is provided on one side of the heat-conducting tube 4, a steam inlet is provided above the water inlet hole 44, and a sleeve rod 45 is welded above the connecting hole 43, which is used to realize that water heated in a water bath is transported from the water tank 7 to the heat-conducting tube 4 through the water inlet hole 44. When the temperature is too high, it is necessary to discharge the water in the heat-conducting tube 4 to achieve cooling. The water in the heat-conducting tube 4 is discharged outward through the water outlet hole 41, thereby achieving an effective hot and cold cycle control effect. The installation of the heat-conducting tube 4 not only improves the heating performance in the concentrator 1, but also facilitates the disassembly and cleaning of the interior when the centrifuge tube 16 leaks and causes pollution.

[0049] The water outlet pipe 13 is passed through the water outlet hole 41. After the connecting block 42 is aligned with the corresponding connecting groove 14, the connecting block 42 is pushed toward the side where it contacts the connecting groove 14. At this time, the telescopic spring 141 contracts to drive the clamping block 142 to move to one side, and the connecting block 42 completely enters the connecting groove 14. After loosening, the telescopic spring 141 recovers, so that the clamping block 142 is clamped into the connecting block 42. The connecting hole 43 provided at the bottom of the heat conducting tube 4 is used to pass the rotating shaft 5 in the center of the concentrator 1. The rotating shaft 5 is inserted into the sleeve rod 45, and the expansion sleeve is used to achieve connection and fixation.

[0050] In some preferred embodiments, the outer side of the rotating shaft 5 is movably connected to the sleeve rod 45, and the outer side of the sleeve rod 45 is welded to the rotor plate 6. The rotating shaft 5 is driven to rotate by a motor, thereby driving the sleeve rod 45 and the rotor plate 6 to rotate, so that the sample in the centrifuge cylinder is effectively separated from the solute and the solvent by the centrifugal force, making the subsequent drying, purification or analysis work easier and more accurate.

[0051] In certain preferred embodiments, Figure 6 A water tank cover 71 is installed on the top of the water tank 7, a mounting groove 72 is opened on one side of the water tank 7, a connecting port 73 is opened on the mounting groove 72, and an electric-controlled water inlet valve 74 is installed at the connecting port 73. After aligning the side of the water tank 7 with the connecting port 73 with the side of the water pipe 8, the water tank 7 is inserted into the water tank groove opened on the concentrator 1.

[0052] In certain preferred embodiments, Figure 3One end of the water pipe 8 is connected to a rubber hose 81, which is connected to the electric water inlet valve 74, and the other end of the water pipe 8 is connected to the water inlet hole 44. When the water tank 1 7 is inserted into the concentrator 1, the rubber hose 81 is inserted into the installation groove 2 72 and then enters the connection port 73 as the water tank 1 7 descends. The sealing ring on the outside of the rubber hose 81 is clamped in the installation groove 2 72 to prevent leakage. After selecting the water bath heating mode, the electric water inlet valve 74 of the concentrator 1 is started to open the water from the water tank 1 7 through the water pipe 8 to the heat-conducting tube 4, until the water volume reaches the required amount for water bath heating, the electric water inlet valve 74 is closed, the heater in the concentrator 1 is turned on, and the water in the heat-conducting tube 4 is heated to heat the outer wall of the centrifuge tube 16. It is mainly suitable for some samples to be dried that need to be heated in a uniform and stable environment.

[0053] In certain preferred embodiments, Fig.12 As shown, the steam generating device 10 includes a steam generator 102 and a steam generator 104. The two connecting pipes on the double-pipe side of the three-way pipe 9 are respectively connected to the steam generator 102 and the steam generator 104. The pipeline of the steam generator 102 is connected to an electric control valve 103, and the pipeline of the steam generator 104 is connected to an electric control valve 2 105. The pipeline of the steam generator 102 is connected to the water tank 2 101. After the steam heating mode is selected, the steam generator 102 generates the steam required for heating in the concentrator 1, and the steam is input into the concentrator 1 through the control of the electric control valve 103. The steam required for heating in the concentrator 1 is provided by the steam generator 104, and is controlled by the electric control valve 105. By setting two steam generators, when a failure occurs or maintenance is required, the other can continue to work, thereby ensuring the continuity and stability of the steam supply. This redundant design greatly improves the reliability of the system and reduces the risk of production interruption due to failure of a single device. This heating mode is suitable for heating some large quantities of samples that need to be dried urgently. It should be noted that in each embodiment, the steam generator 102 is selected by default to generate the steam required for heating.

[0054] In a certain optional embodiment, when water bath and steam are selected for co-heating, the steam generating device 10 selects steam generator 102 to generate steam, at which time the electric control valve 103 is in an open state, and the electric control valve 2 105 is in a closed state. The steam generated by the steam generator 102 is passed into the concentrator 1 through the three-way pipe 9, so that the steam contacts the outer wall of the centrifuge tube 16 to heat the sample. The heat generated by the water bath and the heat generated by the steam are fully heated inside the concentrator 1 through the heat-conducting cylinder 4, thereby improving the drying efficiency. In the process of co-heating with water bath and steam, since the amount of steam generated by the steam generator converted into water is much greater than the amount of water converted into steam in the water bath, it is necessary to discharge the excess water through the water outlet pipe 13 and collect it through the water tank 2 101, so that the collected water is returned to the steam generating device 10 for recycling. This mode is suitable for the concentration and drying of some heat-sensitive substances. The method of co-heating with water bath and steam can provide a relatively low heating temperature while maintaining a high heating efficiency, thereby effectively avoiding the destruction of the sample.

[0055] When the steam generator 2 104 is selected to generate steam, the operation steps are the same as above.

[0056] In certain preferred embodiments, Fig.13 As shown, the centrifugal concentration vacuum drying device includes a centrifugal concentration vacuum drying system, the centrifugal concentration vacuum drying system includes a processing module and a detection module, the processing module includes a vacuum sub-module, a centrifugal sub-module, and a heating sub-module, the heating sub-module includes a water bath heating unit and a steam heating unit, the vacuum sub-module is electrically connected to the vacuum pump 15, the centrifugal sub-module is electrically connected to the concentrator 1, the water bath heating unit is electrically connected to the electrically controlled water inlet valve 74, and the steam heating unit is electrically connected to the steam generating device 10.

[0057] The detection module includes a temperature detection submodule, a water level sensor submodule, and a weighing sensor. The temperature detection submodule is electrically connected to the concentrator 1, the water level sensor submodule is electrically connected to the concentrator 1, and the weighing sensor submodule is installed below the installation location of the water tank 7.

[0058] In an optional embodiment, during the heating of the sample, the operation panel 2 sets the heating temperature threshold in the concentrator 1 to T, and the actual temperature inside the concentrator 1 to t, and the actual temperature t is reflected by the temperature detection submodule.

[0059] When the drying system reflects t=T, the water bath and steam heating are maintained in this state, and the boiling point of the solvent is lowered in conjunction with the vacuum pump 15 to evacuate the sample, thereby quickly drying the solvent on the sample surface, and separating the solvent and solute in the sample through the centrifugal operation in the concentrator 1, thereby achieving the effect of fully drying the sample.

[0060] When the drying system reflects that t>T, the internal temperature of the concentrator 1 is higher than the established temperature setting. At this time, the drying system will start the water level sensor submodule to monitor the water level in the heat-conducting tube 4. When the water level exceeds the preset threshold, it indicates that the steam generated by the steam generator 102 has entered the concentrator 1 and has come into contact with the water in the water bath, causing the steam to condense into water and release a large amount of latent heat. Based on the feedback from the water level sensor submodule, the drying system will execute the operation of closing the electrically controlled valve 103 to stop the steam input and prevent the water level in the heat-conducting tube 4 from being too high, affecting the drying effect. At the same time, the system will open the electrically controlled water outlet valve 11 to discharge excess water and collect it through the water tank 2 101 to ensure the smooth progress of the drying process.

[0061] When the drying system detects the water level in the heat-conducting tube 4 through the water level sensor submodule, when the water level is lower than the preset threshold, it means that part of the water evaporates due to heating in the water bath, and the evaporated water molecules encounter the steam generated by the steam generating device 10 and are reheated into steam, forming a cycle. The heat output of the steam generating device 10 is greater than the heat that can be taken away by water evaporation and steam condensation during water bath heating, which will cause the internal temperature to rise. At this time, the drying system will control the electronically controlled water inlet valve 74 to open, and introduce part of the water into the concentrator 1 to achieve the cooling effect.

[0062] When the drying system reflects that t<T, it means that the amount of steam in the concentrator 1 is insufficient. The drying system will use the steam flow meter to confirm whether the amount of steam produced by the steam generator 102 is too small, resulting in low temperature. Steam is the main heat source. Insufficient supply will lead to a reduction in the heat transferred to the water bath and the sample, so that the internal temperature of the concentrator 1 cannot reach the set value. At this time, the drying system will open the electric control valve 2 105 and use the steam generator 2 104 to generate steam for heating to prevent insufficient heating of the sample, which will ultimately affect the drying effect of the sample.

[0063] In the above embodiment, when the concentrator 1 generates steam through the steam generator 104 and heats with a water bath, the electric control valve 105 is opened and the electric control valve 103 is closed, and the amount of water in the water tank 7 is reflected by the weighing sensor submodule. When the amount of water is sufficient, the electric control water inlet valve 74 puts in a part of the water, which is then discharged by the electric control water outlet valve 11, so that the water is collected by the water tank 101 and then input into the steam generator 102. Since the insufficient steam supply when steam is input through the steam generator 102 is caused by the insufficient water in the steam generator 102, the operation of inputting water into the steam generator 102 through the water tank 101 can prevent the steam generator 102 from dry burning, which in turn causes damage to the steam generator 102, etc., effectively reducing the maintenance cost required for the steam generating device 10.

[0064] Among them, steam generator 2 104 is used as a backup equipment to ensure that the internal water volume is always sufficient. After the steam generator 2 104 is replaced to output steam, if there is insufficient steam again after a period of time, it will be replaced with steam generator 1 102, that is, water tank 1 7 provides the water required for the water bath, and also serves as a backup water tank for the steam generating device 10.

[0065] The above embodiment realizes the intelligent control effect of the drying system, and improves the energy utilization efficiency by heating with water bath and steam, so that the overall energy efficiency of the concentrator 1 is improved. In addition, by adjusting various parameters for different temperature conditions during the water bath and steam heating process, the stable operation of the device is ensured, and the heating efficiency of the concentrator 1 is effectively improved, thereby achieving an improvement in drying efficiency.

[0066] In some optional embodiments, when t>T, the temperature inside the concentrator 1 is too high. At this time, the drying system will take a series of measures to control the temperature drop to avoid irreversible damage to the sample caused by excessive temperature, etc. The electrically controlled water inlet valve 74 is opened to introduce a certain amount of cold water into the heat conduction tube 4, and the exhaust port is opened to discharge a certain amount of high-temperature steam. The temperature detection submodule feeds back the temperature inside the concentrator 1 in real time. If the temperature detection submodule detects that the temperature is still not adjusted to the threshold, the temperature detection submodule feeds back the signal to the drying system. After receiving the signal, the drying system drives the cover opening component 3 to open the cover, and the rotating shaft 5 stops rotating, the vacuum pump 15 and the steam generating device 10 stop running, but at the same time, in order to prevent a large amount of heat from gushing out of the concentrator 1, the power module will pass a small current i to the electromagnetic coil in the slide 37, so as to control the slider 36 to move slowly in the slide 37. The displacement range of the slider 36 in this case is set to a fixed value, that is, the opening angle of the cover 38 is controlled within a certain range, so as to prevent a large amount of high-temperature steam from gushing out of the concentrator 1 and causing unnecessary effects. When the temperature detection submodule detects that the temperature inside the concentrator 1 is suitable for drying, the cover opening component 3 will drive the cover 38 to close, and then continue drying.

[0067] The lid opening assembly 3 has the effect of automatically opening the lid slowly. The temperature inside the concentrator 1 directly affects the speed of opening the lid. After the concentrator 1 completes centrifugation, the drying system receives the signal and gives feedback. The water required for the water bath is discharged through the water outlet 41 and enters the water tank 101 to be collected. The rotor plate 6 stops rotating at high speed and turns to intermittent rotation. At the same time, the push plate 17 starts to open the centrifuge tubes 16 in sequence. The vacuum pump 15 extracts the gas in the concentrator 1, so that the steam in the centrifuge tube 16 is extracted, thereby obtaining a completely dry sample in the centrifuge tube 16. At this time, the temperature detection submodule detects that the temperature inside the concentrator 1 is t, and sets the appropriate lid opening temperature to T'. When t is greater than T', it means that the temperature inside the concentrator 1 is high at this time. Rapid lid opening will cause a large amount of heat to gush out from the concentrator 1, causing unnecessary damage to surrounding personnel or equipment. At this time, the drying system controls the power supply module through the feedback of the temperature detection submodule to pass a small current i, so that the slider 36 slowly moves forward a short distance in the slideway 37. Figure 4 As shown, the driving rod 35 is driven to move forward together, the connecting end of the second connecting rod 34 and the driving rod 35 is moved forward, and at the same time, the connecting end of the first connecting rod 33 and the cover plate 38 is moved to the rear side, so that the outer end of the first connecting rod 33 rotates counterclockwise around the rotating rod 32, and the cover plate 38 slowly opens a small angle, thereby allowing the heat in the concentrator 1 to flow out until the temperature detection submodule detects that t is less than or equal to T'. The drying system controls the power supply module through the feedback of the temperature detection submodule to pass a large current I, so that the slider 36 moves forward quickly in the slide 37, and the cover opening assembly 3 drives the cover plate 38 to open completely, and the operator then takes out the centrifuge tube 16 in the concentrator 1.

[0068] The above embodiment takes further control measures for the situation where the temperature inside the concentrator 1 is too high, aiming to prevent the samples sensitive to high temperature from being inactivated or other adverse reactions under extreme temperature conditions. By slowly opening the cover 38 to cool down, the drying effect of the concentrator 1 is significantly improved, ensuring the stability and activity of the sample during the concentration process, thereby improving the reliability and accuracy of the overall device.

[0069] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0070] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A centrifugal concentration vacuum drying device, comprising a concentrator (1), characterized in that: A centrifugal chamber is provided in the center of the interior of the concentrator (1); an exhaust port is provided on one side of the concentrator (1); an operation panel (2) is installed on the outside of the concentrator (1); a cover opening assembly (3) is installed on one side of the concentrator (1); a heat-conducting cylinder (4) is movably connected in the centrifugal chamber of the concentrator (1); the outer wall of the heat-conducting cylinder (4) is tightly fitted with the inner wall of the concentrator (1); a plurality of corresponding through holes are provided on the inner wall of the heat-conducting cylinder (4); a water inlet (44) is provided on one side of the heat-conducting cylinder (4); a steam inlet is provided above the water inlet (44); and a rotating shaft (5) is installed at the bottom of the concentrator (1); A rotor plate (6) is mounted on the outer side of the rotating shaft (5), and a plurality of centrifuge tube holes are evenly spaced on the rotor plate (6). The interior of the concentrator (1) is connected to a water tank (7). A water delivery pipe (8) is movably connected to one side of the concentrator (1). A tee (9) is movably connected to one side of the concentrator (1). The tee (9) comprises a single pipe opening on one side and a double pipe opening on the other side. One side of the concentrator (1) is connected to the single pipe opening side of the tee (9). A steam flow meter is mounted in the single pipe opening of the concentrator (1) connected to the tee (9). The double pipe opening sides of the tee (9) are both connected to a steam generating device (10) to connect different generators in the steam generating device (10). The other side of the concentrator (1) is movably connected to a vacuum pump (15); A centrifuge tube (16) is installed in the centrifuge tube hole opened on the rotor plate (6), an elastic clamping block (161) is welded on the cover of the centrifuge tube (16), and a through hole (162) is opened on the tube body of the centrifuge tube (16); The concentrator (1) has a mounting groove (12) formed in the center thereof, a water outlet pipe (13) passing through an inner wall of one side of the concentrator (1), an electric-controlled water outlet valve (11) being installed on the water outlet pipe (13), a symmetrical connecting groove (14) formed in the center thereof, and a push-out plate (17) being installed on a side wall of the mounting groove (12).

2. A centrifugal concentration vacuum drying device according to claim 1, characterized in that: A telescopic spring (141) is welded to the inner wall of the connecting groove (14), a clamping block (142) is welded to the end of the telescopic spring (141), and two symmetrical connecting blocks (42) are welded to the bottom of the heat-conducting tube (4).

3. A centrifugal concentration vacuum drying device according to claim 2, characterized in that: The cover opening assembly (3) comprises a connecting ring (31), a rotating rod (32) is passed through the center of the connecting ring (31), and the cover opening assembly (3) further comprises a first connecting rod (33), a second connecting rod (34) and a driving rod (35), one end of the rotating rod (32) is fixed to the first end of the first connecting rod (33), the second end of the first connecting rod (33) is connected to the first end of the second connecting rod (34), the second end of the second connecting rod (34) is movably connected to the first end of the driving rod (35), and the second end of the driving rod (35) is movably connected to a slider (36), a slideway (37) is installed on one side of the concentrator (1), and the slider (36) is slidably connected to the slideway (37), and a cover plate (38) is connected to the rotating rod (32).

4. A centrifugal concentration vacuum drying device according to claim 3, characterized in that: A water outlet hole (41) is provided on one side of the heat-conducting tube (4), a connecting hole (43) is provided at the center of the bottom of the heat-conducting tube (4), a water inlet hole (44) is provided on one side of the heat-conducting tube (4), and a sleeve rod (45) is welded above the connecting hole (43).

5. A centrifugal concentration vacuum drying device according to claim 4, characterized in that: The outer side of the rotating shaft (5) is movably connected to the sleeve rod (45), and the outer side of the sleeve rod (45) is welded to the rotor plate (6).

6. A centrifugal concentration vacuum drying device according to claim 5, characterized in that: A water tank cover (71) is installed on the top of the water tank one (7), a mounting groove (72) is provided on one side of the water tank one (7), a connecting port (73) is provided on the mounting groove (72), and an electrically controlled water inlet valve (74) is installed at the connecting port (73).

7. A centrifugal concentration vacuum drying device according to claim 6, characterized in that: One end of the water pipe (8) is connected to a rubber hose (81), the water pipe (8) is connected to the electrically controlled water inlet valve (74), and the other end of the water pipe (8) is connected to the water inlet hole (44).

8. A centrifugal concentration vacuum drying device according to claim 7, characterized in that: The steam generating device (10) comprises a steam generator 1 (102) and a steam generator 2 (104); the upper pipeline of the steam generator 1 (102) is connected to an electric control valve 1 (103); the upper pipeline of the steam generator 2 (104) is connected to an electric control valve 2 (105); and the upper pipeline of the steam generator 1 (102) is connected to a water tank 2 (101).

9. A centrifugal concentration vacuum drying device according to claim 8, characterized in that: The centrifugal concentration vacuum drying device comprises a centrifugal concentration vacuum drying system, the centrifugal concentration vacuum drying system comprises a processing module and a detection module, the processing module comprises a vacuum submodule, a centrifugal submodule, and a heating submodule, the heating submodule comprises a water bath heating unit and a steam heating unit, the vacuum submodule is electrically connected to the vacuum pump (15), the centrifugal submodule is electrically connected to the concentrator (1), the water bath heating unit is electrically connected to the electrically controlled water inlet valve (74), and the steam heating unit is electrically connected to the steam generating device (10); The detection module comprises a temperature detection submodule, a water level sensor submodule and a weighing sensor submodule. The temperature detection submodule is electrically connected to the concentrator (1), the water level sensor submodule is electrically connected to the concentrator (1), and the weighing sensor submodule is installed below the installation location of the water tank 1 (7).

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