Backflow prevention type rotary evaporator

Abstract

The utility model provides an anti-backflow rotary evaporator which comprises a base, a bath pan is fixedly mounted at the top of the base, a support frame is fixedly mounted on the base on one side of the bath pan, a rotating component is assembled in the support frame, a flow guide pipe is mounted on one side of the rotating component in a butt joint manner, and a loading component is mounted on the other side of the rotating component in a butt joint manner. The loading assembly and the flow guide pipe are installed and connected through a rotating joint, a detachable cooling assembly is assembled in the supporting frame on one side of the rotating assembly, a backflow prevention pipe set connected with the detachable cooling assembly is installed at the end of the flow guide pipe in a butt joint mode, and a collecting bottle is installed at the bottom of the detachable cooling assembly in a butt joint mode. By means of the detachable cooling assembly, cooling liquefaction of steam is achieved, recovery of evaporant is promoted, rapid disassembly and separation can be conducted, the device can be cleaned conveniently after operation is completed, and the situation that raw material components are attached to the interior to affect the follow-up evaporation effect is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary evaporators, in particular to an anti-backflow rotary evaporator. Background Art

[0002] A rotary evaporator is a laboratory device used for efficiently recovering solvents, especially in the process of evaporating volatile solvents from samples under reduced pressure. It is widely used in many fields such as pharmaceuticals, chemicals, food science, environmental science, biochemistry, etc.

[0003] The working principle of the rotary evaporator is based on the principle of vacuum distillation. When the solvent is heated, it enables the solvent to evaporate from the sample more quickly. The rotational movement of the rotary flask helps the solvent to form a thin film on the inner wall of the flask, increasing the evaporation area and thus accelerating the evaporation rate. At the same time, the role of the condenser and cooling water is to condense the evaporated gas and reflux it into the collection flask to achieve solvent recovery.

[0004] From the above content, the operating performance of the rotary evaporator is known. However, considering the actual performance during operation, there are still deficiencies. When the cooling component in the existing evaporator cools down, the raw material steam will enter the interior for cooling and liquefaction. However, since the current cooling tube group generally operates in a closed mode, this causes a lot of inconvenience in subsequent cleaning by personnel and cannot ensure effective cleaning of the cooling parts and the tube wall. Moreover, during the operation of the instrument, when the steam output decreases or the pressure inside the tube is insufficient, the steam in the pipe fittings will flow back.

[0005] Therefore, this application proposes an anti-backflow rotary evaporator. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides an anti-backflow rotary evaporator, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0008] A backflow prevention rotary evaporator comprises a base, a bath pot is fixedly mounted on the top of the base, a support frame is fixedly mounted on the base on one side of the bath pot, a rotating assembly is assembled inside the support frame, a guide tube is docked and mounted on one side of the rotating assembly, a loading assembly is docked and mounted on the other side, and the loading assembly and the guide tube are connected via a rotating joint, a detachable cooling assembly is assembled inside the support frame on one side of the rotating assembly, an anti-backflow tube group connected to the detachable cooling assembly is docked and mounted on the end of the guide tube, and a collecting bottle is docked and mounted on the bottom of the detachable cooling assembly; the detachable cooling assembly comprises a mounting seat, a cooling cylinder , a docking sleeve, a second threaded adjustment knob, and a spiral cooling pipe; the anti-backflow pipe group includes a one-way air intake valve and an air guide pipe. Two sets of mounting seats are fixedly installed in the support frame, and a second threaded adjustment knob is docked and installed between the mounting seats. The opposite surfaces of the mounting seats are fixedly installed with docking sleeves, and cooling cylinders are docked and installed between the docking sleeves. The inside of the cooling cylinder is docked and a spiral cooling pipe is docked and installed, and an air guide pipe is docked and installed on one side of the cooling cylinder, and a one-way air intake valve is docked and installed on the end of the air guide pipe. The air guide pipe is connected to the guide pipe through the one-way air intake valve; the rotating assembly includes an adjusting component and a rotating component. The adjusting component is assembled in the support frame, and the rotating component is docked and installed on the adjusting component.

[0009] Furthermore, the detachable cooling assembly also includes a second guide rail and a sealing gasket. Two sets of second guide rails are fixedly installed on the inner side of the support frame. The support frame is slidably connected to the mounting seat through the second guide rails and a docking sleeve is installed inside the docking sleeve.

[0010] Furthermore, the anti-backflow pipe group also includes a docking joint, and the end of the air guide pipe is docked with the docking joint connected to the cooling cylinder, and the docking joint and the air guide pipe can be assembled and disassembled.

[0011] Furthermore, a connector is butt-jointed at the end of the guide tube, a feed connector is butt-jointed at the end of the connector, an injection pipe extending into the guide tube is butt-jointed at the inner end of the feed connector, and a one-way air intake valve is assembled on the connector.

[0012] Furthermore, the loading assembly includes a rotating bottle, a bottle tube, and an installation cavity. The bottle tube is installed in a docking relationship with the interior of the rotating component. One end of the bottle tube is installed and connected to the rotating joint, and the other end is installed in a docking relationship with the rotating bottle.

[0013] Furthermore, the adjustment component includes a guide block, a first guide rail, and a first threaded adjustment knob. The first guide rail is fixedly installed on the inner side of the support frame, the support frame is slidably installed with a guide block through the first guide rail, and the support frame is docked with a first threaded adjustment knob that passes through the guide block.

[0014] Furthermore, the rotating component includes a motor, a gear set, a mounting cavity, a docking seat, and a positioning rotation. The front side of the guide block is docked and installed with a docking seat through the positioning rotation. The bottom of the docking seat is fixedly installed with a mounting cavity. The bottle tube penetrates through the mounting cavity. The bottom of the mounting cavity is fixedly installed with a motor, and the output end of the motor is equipped with a gear set that is drivingly connected to the bottle tube.

[0015] The utility model provides an anti-backflow rotary evaporator. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The anti-backflow pipe group not only realizes the conveyance of the evaporation raw material, but also prevents the steam from flowing back during the conveyance or when the steam vaporization is insufficient, effectively suppressing the phenomenon of the steam flowing back during cooling;

[0017] 2. The detachable cooling component not only realizes the cooling and liquefaction of the steam, promotes the recovery of the evaporated substance, but also can be quickly disassembled and separated, facilitating the cleaning treatment of the device after the operation is completed, avoiding the attachment of raw material components inside and affecting the subsequent evaporation effect, and the concentrated collection of the evaporation raw material can be realized through the collection bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Shows the schematic structural diagram of the first assembly state of the anti-backflow rotary evaporator of the present utility model;

[0020] Figure 2 Shows the schematic structural diagram of the second assembly state of the anti-backflow rotary evaporator of the present utility model;

[0021] Figure 3 Shows the schematic structural diagram of the assembly state of the detachable cooling component of the present utility model;

[0022] Figure 4 Shows the schematic structural diagram of the internal assembly state of the detachable cooling component of the present utility model;

[0023] Figure 5 Shows the schematic structural diagram of the assembly state of the loading component and the rotating component of the present utility model;

[0024] As shown in the figure: 1. Base; 2. Bath pot; 3. Loading component; 31. Rotating bottle; 32. Bottle tube; 4. Support frame; 5. Removable cooling component; 51. Mounting base; 52. Cooling cylinder; 53. Docking sleeve; 54. Second guide rail; 55. Second thread adjustment knob; 56. Spiral cooling pipe; 57. Sealing gasket; 6. Anti-backflow pipe group; 61. One-way intake valve; 62. Air duct; 63. Docking head; 7. Collection bottle; 8. Diversion pipe; 81. Connector; 82. Rotary joint; 83. Feeding pipe; 84. Feed joint; 9. Rotating component; 91. Adjusting component; 911. Guide block; 912. First guide rail; 913. First thread adjustment knob; 92. Rotating component; 921. Motor; 922. Gear set; 923. Mounting cavity; 924. Docking seat; 925. Positioning rotation. Detailed implementation mode

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] To solve the technical problems in the background art, the following anti-backflow rotary evaporator is provided:

[0028] Combined with Figures 1 - 5 As shown, an anti-backflow rotary evaporator provided by the present utility model includes a base 1. A bath pot 2 is fixedly installed on the top of the base 1. A support frame 4 is fixedly installed on the base 1 on one side of the bath pot 2. A rotating component 9 is assembled inside the support frame 4. A diversion pipe 8 is docked and installed on one side of the rotating component 9, and a loading component 3 is docked and installed on the other side. The loading component 3 and the diversion pipe 8 are installed and connected through a rotary joint 82. A removable cooling component 5 is assembled inside the support frame 4 on one side of the rotating component 9. An anti-backflow pipe group 6 connected to the removable cooling component 5 is docked and installed at the end of the diversion pipe 8. A collection bottle 7 is docked and installed at the bottom of the removable cooling component 5;

[0029] During this period, the loading component 3 is heated by the bath pot 2 to promote the evaporation of the liquid in the loading component 3, generating steam. The rotation component 9 drives the loading component 3 to rotate, causing the loading component 3 to continuously rotate in the bath pot 2, increasing the contact surface, and promoting the evaporation effect. The diversion pipe 8 is docked and matched with the loading component 3, which not only realizes the export of steam but also the import of raw materials. The diversion pipe 8 is connected to the loading component 3 through a rotary joint 82 to avoid interference. The detachable cooling component 5 not only realizes the cooling and liquefaction of steam to promote the recovery of the evaporated substances but also can be quickly disassembled and separated, facilitating the cleaning process of the device after the operation is completed, avoiding the attachment of raw material components inside and affecting the subsequent evaporation effect. The collection bottle 7 can realize the centralized collection of the evaporated raw materials. The anti-backflow pipe group 6 not only realizes the delivery of the evaporated raw materials but also prevents the situation of steam backflow during the delivery or when the steam vaporization is insufficient, effectively suppressing the phenomenon of steam backflow during cooling.

[0030] The detachable cooling component 5 includes a mounting seat 51, a cooling cylinder 52, a docking sleeve 53, a second threaded adjustment knob 55, and a spiral cooling pipe 56; the anti-backflow pipe group 6 includes a one-way intake valve 61 and a gas guide pipe 62. Two mounting seats 51 are fixedly installed inside the support frame 4. A second threaded adjustment knob 55 is docked and installed between the mounting seats 51. Opposite faces of the mounting seats 51 are fixedly installed with docking sleeves 53. A cooling cylinder 52 is docked and installed between the docking sleeves 53. A spiral cooling pipe 56 is docked and installed inside the cooling cylinder 52. A gas guide pipe 62 is docked and installed on one side of the cooling cylinder 52, and a one-way intake valve 61 is docked and installed at the end of the gas guide pipe 62. The gas guide pipe 62 is installed and communicated with the diversion pipe 8 through the one-way intake valve 61; the rotation component 9 includes an adjustment component 91 and a rotation component 92. The adjustment component 91 is assembled inside the support frame 4, and the rotation component 92 is docked and installed on the adjustment component 91;

[0031] During this period, the height and angle of the loading component 3 are adjusted in real time through the adjustment component 91, and the rotation component 92 drives the loading component 3 to rotate, causing the loading component 3 to perform evaporation operations in the bath pot 2 and enter the diversion pipe 8. Then, the evaporated steam will enter the interior of the gas guide pipe 62 through the one-way intake valve 61, then enter the interior of the cooling cylinder 52, and then the cooling medium is introduced into the spiral cooling pipe 56. Through the exchange effect, the steam entering the cooling cylinder 52 is cooled and liquefied. After the operation is completed, the operator can disassemble and separate the cooling cylinder 52 from the docking sleeve 53 through the second threaded adjustment knob 55 for cleaning.

[0032] Embodiment 2

[0033] As Figure 1 and Figure 5As shown, based on the above embodiments, the present embodiment further provides the following content:

[0034] In the present embodiment, the detachable cooling assembly 5 further includes a second guide rail 54 and a sealing gasket 57. Two groups of second guide rails 54 are fixedly installed inside the support frame 4. The support frame 4 is slidably connected to the docking sleeve 53 through the second guide rail 54, and a sealing gasket 57 is docked and installed inside the docking sleeve 53.

[0035] During this period, when the mounting base 51 is separating, it will assist its linear movement through the second guide rail 54. And when the docking sleeve 53 completes the docking of the cooling cylinder 52, the sealing gasket 57 inside the docking sleeve 53 is used to increase its own sealing effect.

[0036] In the present embodiment, the anti-backflow pipe group 6 further includes a docking head 63. The end of the air guide pipe 62 is docked and installed with a docking head 63 connected to the cooling cylinder 52, and the docking head 63 and the air guide pipe 62 can be disassembled and assembled.

[0037] During this period, when the device finishes working, the operator can complete the disassembly and separation between the air guide pipe 62 and the cooling cylinder 52 through the docking head 63, which is convenient for the operator to clean and replace.

[0038] Embodiment Three

[0039] As Figures 1 - 5 shown, based on the above embodiments, the present embodiment further provides the following content:

[0040] In the present embodiment, the end of the diversion pipe 8 is docked and installed with a connector 81. The end of the connector 81 is docked and installed with a feed connector 84. The inner end of the feed connector 84 is docked and installed with a filling pipe 83 extending into the diversion pipe 8. The one-way intake valve 61 is assembled on the connector 81.

[0041] The connector 81 is a connecting piece. The diversion pipe 8 is installed and connected to the feed connector 84 and the one-way intake valve 61 through the connector 81. During this period, the raw material enters the filling pipe 83 through the one-way intake valve 61 to complete the filling;

[0042] The evaporated steam enters the one-way intake valve 61 through the connector 81 to complete the transportation.

[0043] In the present embodiment, the loading assembly 3 includes a rotating bottle 31, a bottle pipe 32, and an installation cavity 923. The bottle pipe 32 is docked and installed inside the rotating member 92. One end of the bottle pipe 32 is installed and connected to the rotary joint 82, and the other end is docked and installed with a rotating bottle 31.

[0044] By combining the above contents, when the raw material enters the bottle tube 32 through the injection tube 83, and then enters the interior of the rotating bottle 31 through the bottle tube 32, the required injection operation is completed;

[0045] During this period, when the rotating bottle 31 rotates, it will rotate between the rotary joint 82 and the guide tube 8, avoiding interference while ensuring the entry and discharge of raw materials and steam.

[0046] In this embodiment, the adjustment component 91 includes a guide block 911, a first guide rail 912, and a first threaded adjustment knob 913. The first guide rail 912 is fixedly installed on the inner side of the support frame 4, and the guide block 911 is slidably installed on the support frame 4 through the first guide rail 912. The first threaded adjustment knob 913 that passes through the guide block 911 is docked and installed inside the support frame 4.

[0047] During this period, the height and angle of the rotating member 92 are adjusted by the adjusting member 91;

[0048] The height can be adjusted by rotating the first threaded adjustment knob 913, which causes the guide block 911 to drive the rotating component 92 to move up and down.

[0049] The angle can be adjusted by adjusting the angle between the rotating component 92 and the guide block 911 .

[0050] In this embodiment, the rotating component 92 includes a motor 921, a gear set 922, a mounting cavity 923, a docking seat 924, and a positioning rotation 925. The front of the guide block 911 is docked with the docking seat 924 through the positioning rotation 925. The bottom of the docking seat 924 is fixedly installed with the mounting cavity 923. The bottle tube 32 passes through the mounting cavity 923. The bottom of the mounting cavity 923 is fixedly installed with the motor 921, and the output end of the motor 921 is equipped with a gear set 922 that is transmission-connected to the bottle tube 32.

[0051] During this period, the motor 921 is started, and the motor 921 drives the bottle tube 32 to rotate through the gear set 922, prompting the bottle tube 32 to rotate in the installation cavity 923, and thereby drives the rotating bottle 31 to rotate in the bath pot 2 to complete heating and evaporation.

[0052] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reflux-preventing rotary evaporator, characterized in that: It includes a base, on the top of which a bathtub is fixedly installed. On the base on one side of the bathtub, a support frame is fixedly installed. Inside the support frame, a rotating assembly is assembled. On one side of the rotating assembly, a diversion pipe is butt - mounted, and on the other side, a loading assembly is butt - mounted. And the loading assembly and the diversion pipe are installed and connected through a rotary joint. Inside the support frame on one side of the rotating assembly, a detachable cooling assembly is assembled. The end of the diversion pipe is butt - mounted with an anti - reflux pipe group connected to the detachable cooling assembly. The bottom of the detachable cooling assembly is butt - mounted with a collection bottle; The detachable cooling assembly includes a mounting seat, a cooling cylinder, a docking sleeve, a second thread adjustment knob, and a spiral cooling pipe; The anti - reflux pipe group includes a one - way intake valve and an air guide pipe. Two groups of mounting seats are fixedly installed inside the support frame. A second thread adjustment knob is butt - mounted between the mounting seats. Opposite surfaces of the mounting seats are fixedly installed with docking sleeves. A cooling cylinder is butt - mounted between the docking sleeves. A spiral cooling pipe is butt - mounted inside the cooling cylinder. An air guide pipe is butt - mounted on one side of the cooling cylinder, and the end of the air guide pipe is butt - mounted with a one - way intake valve. The air guide pipe is installed and communicated with the diversion pipe through the one - way intake valve; The rotating assembly includes an adjustment component and a rotating component. The adjustment component is assembled inside the support frame, and the rotating component is butt - mounted on the adjustment component.

2. The anti-backflow rotary evaporator according to claim 1, characterized in that: The detachable cooling assembly further includes a second guide rail and a sealing gasket. Two groups of second guide rails are fixedly installed on the inner side of the support frame. The support frame is slidably connected to the mounting seat through the second guide rail, and a sealing gasket is butt - mounted inside the docking sleeve.

3. The anti-backflow rotary evaporator according to claim 2, wherein: The anti - reflux pipe group further includes a docking head. The end of the air guide pipe is butt - mounted with a docking head connected to the cooling cylinder, and the docking head and the air guide pipe can be disassembled and assembled.

4. The anti-backflow rotary evaporator according to claim 3, characterized in that: The end of the diversion pipe is butt - mounted with a connecting head. The end of the connecting head is butt - mounted with a feeding joint. The inner end of the feeding joint is butt - mounted with a feeding pipe extending into the diversion pipe. The one - way intake valve is assembled on the connecting head.

5. The anti-backflow rotary evaporator according to claim 4, characterized in that: The loading assembly includes a rotating bottle, a bottle pipe, and an installation cavity. The bottle pipe is butt - mounted inside the rotating component. One end of the bottle pipe is installed and connected to the rotary joint, and the other end is butt - mounted with a rotating bottle.

6. The anti-backflow rotary evaporator according to claim 5, characterized in that: The adjustment component includes a guide block, a first guide rail, and a first thread adjustment knob. The first guide rail is fixedly installed on the inner side of the support frame. The support frame slidably installs the guide block through the first guide rail. The first thread adjustment knob passing through the guide block is butt - mounted inside the support frame.

7. The anti-backflow rotary evaporator according to claim 6, characterized in that: The rotating component includes a motor, a gear set, an installation cavity, a docking seat, and a positioning rotation. The front of the guide block is butt - mounted with a docking seat through the positioning rotation. The bottom of the docking seat is fixedly installed with an installation cavity. The bottle pipe passes through the installation cavity. The motor is fixedly installed at the bottom of the installation cavity, and the output end of the motor is assembled with a gear set that is in transmission connection with the bottle pipe.

Images