Water vapor generating assembly for rotary evaporator

Abstract

The utility model relates to the technical field of evaporators, in particular to a water vapor generating component for a rotary evaporator, which comprises a generating box, an upper cover is opened, and a circulation component is adjusted, so that liquid enters a steam bottle through a water injection pipe from a water injection port, and the steam bottle is filled with water. The liquid level in the steam bottle can be conveniently observed through the visible window outside the generating box, the flow of nitrogen entering the nitrogen pipe is adjusted through the adjusting control assembly, nitrogen is conveyed into the steam bottle through the nitrogen pipe, and liquid in the steam bottle is heated through the heating plate; the temperature and pressure of liquid in the steam bottle are measured through the temperature sensor and the pressure sensor and displayed through the display screen outside the generation box, the guide pipe is connected with the heat preservation assembly through the connector assembly, and steam reacted in the steam bottle is poured into the distillation bottle through the guide pipe by means of the heat preservation assembly, so that steam distillation is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, and more specifically to a water vapor generating component for a rotary evaporator. Background Art

[0002] Steam distillation is a type of distillation, which refers to the process of passing steam through a raw material containing volatile components (usually a liquid substance) for co-distillation, so that the volatile components are distilled out together with the steam, and is usually used for separation and purification. In the steam distillation operation, steam acts as a heat carrier and reduces the boiling point. In addition, steam is cheap and easy to obtain, and is easy to separate after cooling, so it is the most commonly used. When water vapor is continuously passed through a mixed liquid containing volatile substance A, when phase equilibrium is reached, the vapor phase contains water vapor and component A, and the total pressure of the vapor phase is equal to the sum of the partial pressure of water vapor and the partial pressure of component A. When the total pressure of the vapor phase is equal to the external pressure, the liquid boils at a temperature far below the normal boiling point of component A, and component A is evaporated with the water vapor. If saturated steam is used in the distillation operation, and the heat added externally is insufficient, the water vapor will partially condense to form two liquid phases. At this time, the partial pressure of water vapor in the vapor phase is the largest, equal to its saturated vapor pressure, and the liquid will boil at the lowest temperature. However, since the saturated vapor pressure of water is much higher than the vapor partial pressure of component A, the content of component A in the distilled vapor phase is very small, and the consumption of water vapor is the largest. In order to avoid condensation of water vapor in the distillation kettle, external heating or superheated steam is used to raise the temperature of the feed liquid to the maximum allowable temperature to increase the vapor partial pressure of component A.

[0003] Rotary evaporator, also known as rotary evaporator, is a distillation instrument widely used in experimental fields such as biology, chemistry, and medicine. It consists of a drive motor, a transmission shaft, a distillation flask, a heater, a condenser, a receiver, a vacuum pump, and other components. Rotary evaporator is mostly used for continuous distillation of volatile components under reduced pressure conditions.

[0004] Currently, when performing steam stripping operations on polymer polyol (POP) synthesis products in the laboratory, a rotary evaporator is required to perform steam distillation on materials containing residual acrylonitrile monomer (content 10-100 mg / kg). However, the commonly used rotary evaporators lack a steam generating device and are difficult to perform steam distillation.

[0005] In view of this, the utility model provides a water vapor generating component for a rotary evaporator. Utility Model Content

[0006] The purpose of the utility model is to provide a water vapor generating assembly for a rotary evaporator in view of the defects of the prior art, so as to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: The utility model provides a water vapor generating assembly for a rotary evaporator, which comprises a generating box, a heating plate is fixedly connected to the bottom of the inner wall of the generating box, a steam bottle is fixedly connected to the top of the heating plate, a pressure sensor and a temperature sensor are fixedly connected near the bottom of the generating box, and the pressure sensor and the temperature sensor are both movably connected to the bottom of the steam bottle through the heating plate;

[0008] The top of the generating box is fixedly connected with a water injection port, the top of the water injection port is movably connected with an upper cover, the bottom of the water injection port is fixedly connected with a circulation component, the end of the circulation component is fixedly connected with a water injection pipe, the inside of the outer wall on one side of the generating box is fixedly connected with a nitrogen pipe, the end of the nitrogen pipe passing through the generating box is fixedly connected with a control component, the inside of the outer wall on the other side of the generating box is fixedly connected with a heat preservation component, the heat preservation component passes through the outer wall of the generating box and is movably connected with a joint component, the inside of the joint component is movably connected with a conduit, and the water injection pipe, the nitrogen pipe and the heat preservation component are all located inside the steam bottle.

[0009] As a further improvement of the present technical solution, the circulation component includes a circulation valve shell, which is fixedly connected between the water injection pipe and the end of the water injection port, and a valve ball is movably connected inside the circulation valve shell. A protruding rod on the outer wall of the valve ball passes through the end of the circulation valve shell and is fixedly connected to a motor. The circulation component is used to adjust the liquid injection situation between the water injection pipe and the water injection port.

[0010] As a further improvement of the present technical solution, the control component includes a control valve housing, one end of which is fixedly connected to the end of the nitrogen pipe passing through the generator box, and the control valve housing is movably connected to the inside of the control valve housing with a screw, the end of the screw that passes through the inside of the control valve housing is fixedly connected to a filter element, and the end of the screw that passes through the top of the control valve housing is fixedly connected to a turntable, and the control component is used to adjust the flow rate.

[0011] As a further improvement of the present technical solution, the joint assembly includes a connecting pipe, the inner wall of the connecting pipe is fixedly connected with bolts, the outer wall of the bolts and the inside of the connecting pipe are movably connected with an insulation assembly and a conduit, and the joint assembly is used to facilitate the connection of the conduit.

[0012] As a further improvement of the present technical solution, the insulation component includes a pipe body, which is fixedly connected to the inside of the generator box, the pipe body passes through the outer wall of the generator box and is movably connected to a connecting pipe, and the pipe body passes through the outer wall of the generator box and is movably sleeved with an insulation sleeve, and the insulation component is used to maintain the steam temperature.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By opening the upper cover and adjusting the circulation component, the liquid enters the steam bottle through the water injection pipe from the water injection port, and the liquid level inside the steam bottle can be conveniently observed through the visual window outside the generator box. The nitrogen flow entering the nitrogen pipe is adjusted by adjusting the control component, and the nitrogen is transported to the steam bottle through the nitrogen pipe. The liquid inside the steam bottle is heated by the heating plate, and the temperature and pressure of the liquid inside the steam bottle are measured by the temperature sensor and the pressure sensor, and displayed on the display screen outside the generator box. The conduit is connected to the insulation component through the joint component, and the steam reacted in the steam bottle is poured into the distillation flask through the conduit through the insulation component, thereby forming water vapor distillation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the water injection structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the flow valve of the utility model;

[0020] Figure 5 This is a schematic diagram of the control valve structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the steam outlet structure of the utility model.

[0022] The meanings of the numbers in the figure are as follows: 1. Generator box; 11. Heating plate; 110. Pressure sensor; 111. Temperature sensor; 12. Steam bottle; 2. Water injection pipe; 21. Circulation component; 210. Circulation valve housing; 211. Valve ball; 212. Motor; 22. Water injection port; 220. Upper cover; 3. Nitrogen pipe; 31. Control component; 310. Control valve housing; 311. Filter element; 312. Screw; 313. Turntable; 4. Conduit; 41. Joint component; 410. Pipe connection; 411. Bolt; 42. Insulation component; 420. Pipe body; 421. Insulation sleeve. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] Example: Figure 1-6 As shown, the device includes a generator box 1, a heating plate 11 is fixedly connected to the bottom of the inner wall of the generator box 1, a steam bottle 12 is fixedly connected to the top of the heating plate 11, and a pressure sensor 110 and a temperature sensor 111 are fixedly connected near the bottom of the generator box 1, and the pressure sensor 110 and the temperature sensor 111 are both movably connected to the bottom of the steam bottle 12 through the heating plate 11;

[0025] A water injection port 22 is fixedly connected to the top of the generating box 1, and an upper cover 220 is movably connected to the top of the water injection port 22. A circulation component 21 is fixedly connected to the bottom of the water injection port 22, and a water injection pipe 2 is fixedly connected to the end of the circulation component 21. A nitrogen pipe 3 is fixedly connected to the inside of the outer wall of one side of the generating box 1, and the end of the nitrogen pipe 3 passing through the generating box 1 is fixedly connected to the control component 31. A heat preservation component 42 is fixedly connected to the inside of the outer wall of the other side of the generating box 1, and the heat preservation component 42 passes through the outer wall of the generating box 1 and is movably connected to the joint component 41, and the joint component 41 is movably connected to the conduit 4. The water injection pipe 2, the nitrogen pipe 3 and the heat preservation component 42 are all located inside the steam bottle 12.

[0026] First, the specific structure of the circulation component 21 is disclosed. The circulation component 21 includes a circulation valve shell 210, which is fixedly connected between the water injection pipe 2 and the end of the water injection port 22. A valve ball 211 is movably connected inside the circulation valve shell 210. A convex rod on the outer wall of the valve ball 211 passes through the end of the circulation valve shell 210 and is fixedly connected to a motor 212. The circulation component 21 is used to adjust the liquid injection situation between the water injection pipe 2 and the water injection port 22. The valve ball 211 is driven to rotate inside the circulation valve shell 210 by the output shaft of the motor 212, so as to adjust the circulation direction of the valve ball 211. When the circulation hole inside the valve ball 211 is aligned with the two ends of the circulation valve shell 210, it is convenient to connect the water injection pipe 2 with the water injection port 22.

[0027] According to the above disclosure of the specific structure of the control component 31, the control component 31 includes a control valve housing 310, one end of which is fixedly connected to the end of the nitrogen pipe 3 passing through the generator box 1, and a screw 312 is movably connected inside the control valve housing 310, and one end of the screw 312 passing through the control valve housing 310 is fixedly connected to a filter element 311, and one end of the screw 312 passing through the top of the control valve housing 310 is fixedly connected to a turntable 313. The control component 31 is used to adjust the flow rate, and the screw 312 is driven to rotate inside the control valve housing 310 by rotating the turntable 313, so that the screw 312 drives the filter element 311 to rise and fall inside the control valve housing 310, and the filter element 311 moves up and down between the two flow holes inside the control valve housing 310 to adjust its flow condition, thereby controlling the nitrogen flow between the two flow holes;

[0028] According to the above disclosure of the specific structure of the joint assembly 41, the joint assembly 41 includes a pipe 410, the inner wall of the pipe 410 is fixedly connected with a bolt 411, and the outer wall of the bolt 411 and the inside of the pipe 410 are movably connected with the insulation assembly 42 and the conduit 4. The joint assembly 41 is used to facilitate the connection of the conduit 4. The bolt 411 is driven to rotate by rotating the pipe 410, so that the bolt 411 is conveniently tightened on the outer wall of the pipe body 420, and the conduit 4 is screwed into the pipe 410 by rotating the conduit 4, so that the conduit 4 is connected to the pipe body 420;

[0029] According to the above disclosure of the specific structure of the insulation component 42, the insulation component 42 includes a tube body 420, the tube body 420 is fixedly connected to the inside of the generator box 1, the tube body 420 passes through the outer wall of the generator box 1 and is movably connected to the connecting pipe 410, the tube body 420 passes through the outer wall of the inside of the generator box 1 and is movably sleeved with an insulation sleeve 421, the insulation component 42 is used to maintain the steam temperature, the exhaled gas in the steam bottle 12 is guided outward as a whole through the tube body 420, the gas temperature in the tube body 420 is insulated by the insulation sleeve 421, to ensure that the temperature of the moving gas in the tube body 420 remains consistent.

[0030] The improvement of this embodiment is that the valve ball 211 is driven to rotate inside the circulation valve housing 210 by the output shaft of the motor 212, so as to adjust the circulation direction of the valve ball 211. When the circulation hole inside the valve ball 211 is aligned with the two ends of the circulation valve housing 210, it is convenient to connect the water injection pipe 2 with the water injection port 22, and the liquid level inside the steam bottle 12 can be conveniently observed through the visual window outside the generating box 1. The screw 312 is driven to rotate inside the control valve housing 310 by rotating the turntable 313, so that the screw 312 drives the filter element 311 to rise and fall inside the control valve housing 310, and the filter element 311 moves up and down between the two circulation holes inside the control valve housing 310 to adjust its circulation condition, so as to adjust the nitrogen flow between the two circulation holes. The control is performed by delivering nitrogen to the steam bottle 12 through the nitrogen pipe 3, heating the liquid in the steam bottle 12 through the heating plate 11, measuring the temperature and pressure of the liquid in the steam bottle 12 through the temperature sensor 111 and the pressure sensor 110, and displaying them on the display screen outside the generating box 1, driving the bolt 411 to rotate by rotating the connecting pipe 410, thereby facilitating the bolt 411 to be tightened on the outer wall of the tube body 420, screwing the conduit 4 into the connecting pipe 410 by rotating the conduit 4, thereby connecting the conduit 4 with the tube body 420, and guiding the entire exhaled gas in the steam bottle 12 outward through the tube body 420, and keeping the gas temperature in the tube body 420 warm through the heat preservation sleeve 421, so as to ensure that the temperature of the gas moving in the tube body 420 remains constant;

[0031] In summary, the working principle of this solution is as follows:

[0032] By opening the upper cover 220 and adjusting the circulation assembly 21, the liquid enters the steam bottle 12 through the water injection port 22 and the water injection pipe 2, wherein the circulation assembly 21 drives the valve ball 211 to rotate inside the circulation valve shell 210 through the output shaft of the motor 212, thereby adjusting the circulation direction of the valve ball 211. When the circulation hole inside the valve ball 211 is aligned with the two ends of the circulation valve shell 210, it is convenient to connect the water injection pipe 2 with the water injection port 22, and the steam bottle can be conveniently opened through the visible window outside the generating box 1. 12 is observed, and the nitrogen flow entering the nitrogen pipe 3 is adjusted by adjusting the control component 31, wherein the control component 31 drives the screw 312 to rotate inside the control valve housing 310 by rotating the turntable 313, so that the screw 312 drives the filter element 311 to rise and fall inside the control valve housing 310, and the filter element 311 moves up and down between the two flow holes inside the control valve housing 310 to adjust its flow condition, thereby controlling the nitrogen flow between the two flow holes, and The nitrogen pipe 3 transports nitrogen to the steam bottle 12, and the liquid in the steam bottle 12 is heated by the heating plate 11. The temperature and pressure of the liquid in the steam bottle 12 are measured by the temperature sensor 111 and the pressure sensor 110, and displayed on the display screen outside the generating box 1. The conduit 4 is connected to the insulation component 42 through the joint component 41, wherein the joint component 41 drives the bolt 411 to rotate by rotating the connecting pipe 410, so as to facilitate tightening the bolt 411 on the outer wall of the tube body 420, and the conduit 4 is screwed into the connecting pipe 410 by rotating it, so as to connect the conduit 4 with the tube body 420, and the steam reacted in the steam bottle 12 is poured into the distillation bottle through the conduit 4 through the insulation component 42, wherein the insulation component 42 guides the entire exhaled gas in the steam bottle 12 outward through the tube body 420, and the gas temperature in the tube body 420 is insulated by the insulation sleeve 421 to ensure that the temperature of the gas moving in the tube body 420 remains consistent, thereby forming a water vapor distillation operation in the generating box 1.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A water vapor generating assembly for a rotary evaporator, comprising a generating box (1), characterized in that: A heating plate (11) is fixedly connected to the bottom of the inner wall of the generating box (1), a steam bottle (12) is fixedly connected to the top of the heating plate (11), a pressure sensor (110) and a temperature sensor (111) are fixedly connected near the bottom of the generating box (1), and both the pressure sensor (110) and the temperature sensor (111) pass through the heating plate (11) and are movably connected to the bottom of the steam bottle (12); The top of the generating box (1) is fixedly connected with a water injection port (22), the top of the water injection port (22) is movably connected with an upper cover (220), the bottom of the water injection port (22) is fixedly connected with a circulation component (21), the end of the circulation component (21) is fixedly connected with a water injection pipe (2), one side of the outer wall of the generating box (1) is fixedly connected with a nitrogen pipe (3), the end of the nitrogen pipe (3) passing through the generating box (1) is fixedly connected with a control component (31), the other side of the outer wall of the generating box (1) is fixedly connected with a heat preservation component (42), the heat preservation component (42) passes through the outer wall of the generating box (1) and is movably connected with a joint component (41), the joint component (41) is movably connected with a conduit (4), the water injection pipe (2), the nitrogen pipe (3) and the heat preservation component (42) are all located inside the steam bottle (12).

2. The water vapor generating assembly for a rotary evaporator according to claim 1, characterized in that: The circulation assembly (21) comprises a circulation valve housing (210), wherein the circulation valve housing (210) is fixedly connected between the water injection pipe (2) and the end of the water injection port (22), and a valve ball (211) is movably connected inside the circulation valve housing (210).

3. The water vapor generating assembly for a rotary evaporator according to claim 2, characterized in that: The protruding rod on the outer wall of the valve ball (211) passes through the end of the circulation valve housing (210) and is fixedly connected to a motor (212). The circulation component (21) is used to adjust the liquid injection condition between the water injection pipe (2) and the water injection port (22).

4. The water vapor generating assembly for a rotary evaporator according to claim 1, characterized in that: The control assembly (31) comprises a control valve housing (310), one end of which is fixedly connected to the end of a nitrogen pipe (3) passing through a generator box (1); a screw (312) is movably connected to the inside of the control valve housing (310); one end of the screw (312) passing through the inside of the control valve housing (310) is fixedly connected to a filter element (311); and one end of the screw (312) passing through the top of the control valve housing (310) is fixedly connected to a turntable (313); the control assembly (31) is used to adjust the flow rate.

5. The water vapor generating assembly for a rotary evaporator according to claim 1, characterized in that: The joint assembly (41) comprises a connecting pipe (410), the inner wall of the connecting pipe (410) is fixedly connected with a bolt (411), and the outer wall of the bolt (411) and the inside of the connecting pipe (410) are movably connected with a heat preservation assembly (42) and a conduit (4), and the joint assembly (41) is used to facilitate the connection of the conduit (4).

6. The water vapor generating assembly for a rotary evaporator according to claim 5, characterized in that: The heat-insulating component (42) comprises a tube body (420), wherein the tube body (420) is fixedly connected to the interior of the generating box (1), wherein the tube body (420) passes through the outer wall of the generating box (1) and is movably connected to a connecting pipe (410), and wherein the tube body (420) passes through the outer wall of the generating box (1) and is movably sleeved with a heat-insulating sleeve (421), wherein the heat-insulating component (42) is used to maintain the temperature of steam.

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