Efficient and simple cold trap device used in TZV preparation

Abstract

The utility model discloses an efficient and simple cold trap device used in TZV preparation, and relates to the technical field of air cooling. The efficient and simple cold trap device used in TZV preparation comprises a cold trap tank body and a vacuum tube, a tank body air inlet and a tank body air outlet are formed in the upper surface of the cold trap tank body, the tank body air outlet is used for being connected with an inlet of a vacuum oil pump, and the vacuum tube is connected to the outer wall of the cold trap tank body in a winding mode. One end of the vacuum pipe is a suction port, the other end of the vacuum pipe is an output port, the output port of the vacuum pipe is connected with the air inlet of the tank body, and the suction port of the vacuum pipe is used for being connected with a vacuum interface of the rectifying still. The vacuum oil pump is connected with the efficient and simple cold trap device, and the efficient and simple cold trap device is connected with the connector of the rectifying still, so that air extracted from the rectifying still enters the efficient and simple cold trap device and is cooled firstly, heat released by compression of the vacuum oil pump subsequently is reduced, and the continuous use time of the vacuum oil pump can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air cooling, in particular to a high-efficiency simple cold trap device used in TZV preparation. Background Art

[0002] During the high-vacuum distillation process for the TZV intermediate (NEE), due to its high boiling point, using ordinary water to flush the vacuum pump results in a distillation temperature of 130°C, close to its decomposition temperature of 148°C, posing a safety hazard. Using a vacuum oil pump, the distillation temperature is 100°C, well below the decomposition temperature of 148°C, thus avoiding this safety hazard.

[0003] However, if the vacuum oil pump is used for too long, the oil temperature inside the pump will increase, which will lead to a decrease in vacuum degree and a gradual increase in distillation temperature, affecting the use effect. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the utility model provides a high-efficiency and simple cold trap device used in TZV preparation, which solves the problem that the increase of oil temperature in the pump will lead to a decrease in vacuum and a step-by-step increase in distillation temperature.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-efficiency and simple cold trap device used in TZV preparation, comprising:

[0008] A cold trap tank body, wherein the upper surface of the cold trap tank body is provided with a tank body air inlet and a tank body air outlet, and the tank body air outlet is used to be connected to the inlet of the vacuum oil pump;

[0009] A vacuum tube is wound around the outer wall of the cold trap tank body, one end of the vacuum tube is a suction port and the other end is an output port, the output port of the vacuum tube is connected to the air inlet of the tank body, and the vacuum tube suction port is used to connect to the vacuum interface of the distillation kettle.

[0010] Preferably, a flange matching the inlet of the vacuum oil pump is welded on the air outlet of the tank body.

[0011] Preferably, the suction port of the vacuum tube is connected to a flared sleeve, and the flared sleeve matches the vacuum interface of the distillation kettle.

[0012] Preferably, the vacuum tube is made of rubber.

[0013] Preferably, the vacuum tube is spirally wound around the outer wall of the cold trap tank body, and the vacuum tube and the outer wall of the cold trap tank body are bonded by adhesive tape.

[0014] Preferably, a pressing plate is detachably connected to the outer wall of the cold trap tank body, and the pressing plate is bent to form a plurality of slots, and the slots of the pressing plate are snap-connected to the outer wall of the vacuum tube.

[0015] Preferably, the vacuum tube is made of copper or aluminum.

[0016] Preferably, it also includes a low-temperature tank, which is hollow and open at the top. The cold trap tank is inserted into the interior of the low-temperature tank from the upper opening of the low-temperature tank. A through groove is provided on the side wall of the low-temperature tank. The suction port of the vacuum tube passes through the through groove to the outside of the low-temperature tank. The through groove is filled with a sealing ring, which is tightly attached to the outer wall of the vacuum tube. A drain pipe is also connected to the side wall of the low-temperature tank.

[0017] Preferably, a support platform is provided at the lower side of the inner cavity of the low temperature tank. The support platform is in the shape of a truncated cone with a small top and a large bottom. The cold trap tank body is supported on the upper surface of the support platform.

[0018] (3) Beneficial effects

[0019] The utility model provides a high-efficiency and simple cold trap device used in TZV preparation, which has at least the following beneficial effects compared with the prior art:

[0020] The vacuum oil pump is connected to the high-efficiency simple cold trap device, and the high-efficiency simple cold trap device is connected to the interface of the distillation kettle. In this way, the air extracted from the distillation kettle enters the high-efficiency simple cold trap device, where it is first cooled down to reduce the heat released by subsequent compression by the vacuum oil pump. Therefore, the continuous use time of the vacuum oil pump can be extended.

[0021] The efficient and simple cold trap device adopts a simple structure and is easy to connect and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure when a pressure plate is set on the outer wall of the cold trap tank of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the cold trap tank of the utility model loaded in the low-temperature tank;

[0025] Figure 4 This is a schematic diagram of the internal structure of the low-temperature tank of the utility model.

[0026] In the figure: 1. Cold trap tank body; 2. Tank air inlet; 3. Tank air outlet; 4. Flange; 5. Vacuum tube; 6. Expanding sleeve; 7. Pressing plate; 8. Low-temperature tank; 9. Support platform; 10. Drain pipe; 11. Pass-through slot. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] Example 1:

[0029] See also Figure 1-4 , the utility model provides a technical solution: a cold trap device, comprising: a cold trap tank 1, a vacuum tube 5;

[0030] The upper surface of the cold trap tank body 1 is provided with a tank body air inlet 2 and a tank body air outlet 3. The tank body air outlet 3 is used to connect to the inlet of the vacuum oil pump. The vacuum tube 5 is wrapped around the outer wall of the cold trap tank body 1. One end of the vacuum tube 5 is a suction port and the other end is an output port. The output port of the vacuum tube 5 is connected to the tank body air inlet 2, and the suction port of the vacuum tube 5 is used to connect to the vacuum interface of the distillation kettle.

[0031] Analysis of the above content: When in use, according to the above connection method, the vacuum oil pump is started, and the vacuum oil pump sucks air through the tank body air outlet 3. The air in the distillation kettle enters the cold trap tank body 1 through the vacuum tube 5 and the tank body air inlet 2. The air in the cold trap tank body 1 is cooled, and then the cooled air is output through the tank body air outlet 3 into the vacuum oil pump.

[0032] Among them, the cold trap tank body 1 is an existing cold trap. The attached figure in the specification is a simple diagram. The corresponding structural components are added according to the needs of use. They will not be described here. The principle of the vacuum oil pump can refer to the vacuum water pump, that is, the water in the vacuum water pump is replaced with oil.

[0033] Example 2:

[0034] See also Figure 1-4 The utility model provides a technical solution based on embodiment 1: a flange 4 matching the inlet of the vacuum oil pump is welded on the tank body air outlet 3, and a flared sleeve 6 is connected to the suction port of the vacuum tube 5, and the flared sleeve 6 matches the vacuum interface of the distillation kettle.

[0035] Analysis of the above content: The setting of the flange 4 and the flared sleeve 6 facilitates the connection between the device and the inlet of the vacuum oil pump and the vacuum interface of the distillation kettle. If the inlet of the vacuum oil pump and the vacuum interface of the distillation kettle adopt other structural forms, the flange 4 and the flared sleeve 6 can be replaced with a matching structural form.

[0036] Example 3:

[0037] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: the vacuum tube 5 is made of rubber.

[0038] Analysis of the above content: The vacuum tube 5 is made of rubber material, which is easy to deform so that the vacuum tube 5 can be connected to the outer wall of the cold trap tank 1.

[0039] Example 4:

[0040] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: the vacuum tube 5 is spirally wound around the outer wall of the cold trap tank 1, and the vacuum tube 5 and the outer wall of the cold trap tank 1 are bonded by tape.

[0041] Analysis of the above content: The tape bonding method is simple and convenient.

[0042] Embodiment 5:

[0043] See also Figure 1-4 The utility model provides a technical solution based on embodiment 1: the outer wall of the cold trap tank body 1 is detachably connected to a pressing plate 7, and the pressing plate 7 is bent to form a plurality of slots, and the slots of the pressing plate 7 are clamped on the outer wall of the vacuum tube 5.

[0044] Analysis of the above content: The difference from the fourth embodiment is that the pressing plate 7 and the card slot thereon are arranged to facilitate the pressing plate 7 to be clamped on the outer wall of the vacuum tube 5, thereby fixing and stabilizing the vacuum tube 5.

[0045] Example 6:

[0046] See also Figure 1-4 The present invention provides a technical solution based on the first embodiment: the vacuum tube 5 is made of copper or aluminum, and also includes a low-temperature tank 8. The low-temperature tank 8 is hollow and has an upper opening. The cold trap tank body 1 is inserted into the low-temperature tank 8 from the upper opening of the low-temperature tank 8. A through groove 11 is provided on the side wall of the low-temperature tank 8. The suction port of the vacuum tube 5 passes through the through groove 11 to the outside of the low-temperature tank 8. The through groove 11 is filled with a sealing ring, which is tightly attached to the outer wall of the vacuum tube 5. A drain pipe 10 is also connected to the side wall of the low-temperature tank 8.

[0047] Analysis of the above content: Different from the third embodiment, the copper or aluminum vacuum tube 5 has a better thermal conductivity, so the copper or aluminum vacuum tube 5 wrapped around the outer wall of the cold trap tank 1 can increase heat exchange with the outside.

[0048] The low-temperature tank 8 set outside can cool the air in the vacuum tube 5. Low-temperature objects such as ice cubes can be placed in the low-temperature tank 8. The low-temperature tank 8 uses thermal insulation materials such as foam plastics. After the ice cubes are placed in the low-temperature tank 8, the ice cubes will initially cool the air in the vacuum tube 5, and the air will further cool down after entering the cold trap tank body 1.

[0049] The water generated by the melting of the ice cubes is discharged from the drain pipe 10 .

[0050] Embodiment seven:

[0051] See also Figure 1-4 The utility model provides a technical solution based on embodiment six: a support platform 9 is provided on the lower side of the inner cavity of the low-temperature tank 8, and the support platform 9 is a truncated cone with a small top and a large bottom, and the cold trap tank body 1 is supported on the upper surface of the support platform 9.

[0052] Analysis of the above content: the support platform 9 can elevate the cold trap tank body 1 to prevent the cold trap tank body 1 from being damaged, and the upper surface of the support platform 9 is set higher than the drain pipe 10.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient and simple cold trap device used in TZV preparation, characterized in that: include: A cold trap tank body (1), wherein the upper surface of the cold trap tank body (1) is provided with a tank body air inlet (2) and a tank body air outlet (3), and the tank body air outlet (3) is used to be connected to the inlet of a vacuum oil pump; A vacuum tube (5) is wound around the outer wall of the cold trap tank body (1), one end of the vacuum tube (5) is a suction port, and the other end is an output port, the output port of the vacuum tube (5) is connected to the tank body air inlet (2), and the suction port of the vacuum tube (5) is used to connect to the vacuum interface of the distillation kettle.

2. The efficient and simple cold trap device used in TZV preparation according to claim 1, characterized in that: A flange (4) matching the inlet of the vacuum oil pump is welded on the tank body air outlet (3).

3. The efficient and simple cold trap device used in TZV preparation according to claim 1, characterized in that: The suction port of the vacuum tube (5) is connected to a flared sleeve (6), and the flared sleeve (6) matches the vacuum interface of the distillation kettle.

4. The efficient and simple cold trap device used in TZV preparation according to claim 1, characterized in that: The vacuum tube (5) is made of rubber.

5. The efficient and simple cold trap device used in TZV preparation according to claim 1, characterized in that: The vacuum tube (5) is spirally wound around the outer wall of the cold trap tank body (1), and the vacuum tube (5) and the outer wall of the cold trap tank body (1) are bonded together by adhesive tape.

6. The efficient and simple cold trap device used in TZV preparation according to claim 1, characterized in that: The outer wall of the cold trap tank (1) is detachably connected to a pressing plate (7), the pressing plate (7) is bent to form a plurality of slots, and the slots of the pressing plate (7) are clamped on the outer wall of the vacuum tube (5).

7. The efficient and simple cold trap device used in TZV preparation according to claim 1, characterized in that: The vacuum tube (5) is made of copper or aluminum.

8. The efficient and simple cold trap device used in TZV preparation according to claim 7, characterized in that: The invention also includes a low-temperature tank (8), which is hollow and has an upper opening. The cold trap tank body (1) is inserted into the interior of the low-temperature tank (8) from the upper opening of the low-temperature tank (8). A through groove (11) is provided on the side wall of the low-temperature tank (8). The suction port of the vacuum tube (5) passes through the through groove (11) to the outside of the low-temperature tank (8). The through groove (11) is filled with a sealing ring, which is tightly attached to the outer wall of the vacuum tube (5). The side wall of the low-temperature tank (8) is also connected to a drain pipe (10).

9. The efficient and simple cold trap device used in TZV preparation according to claim 8, characterized in that: A support platform (9) is provided on the lower side of the inner cavity of the low-temperature tank (8). The support platform (9) is in the shape of a truncated cone with a smaller top and a larger bottom. The cold trap tank body (1) is supported on the upper surface of the support platform (9).

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