CN220385811U

CN220385811U - Rectification experimental equipment

Info

Publication number: CN220385811U
Application number: CN202321872667.1U
Authority: CN
Inventors: 辜琪
Original assignee: Sichuan Ganduo Technology Co ltd
Current assignee: Sichuan Ganduo Technology Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-01-26
Anticipated expiration: 2033-07-17

Abstract

The utility model relates to rectifying experimental equipment, and belongs to the technical field of experimental equipment. Rectifying experimental facilities, including the head tank, the liquid in the head tank is carried to the rectifying column through first pipeline to the raw pump, the bottom intercommunication reboiler of rectifying column, the reboiler passes through pipeline intercommunication second product jar, the heat medium import of top intercommunication condenser, the heat medium export intercommunication has the import of backward flow distributor, the refrigerant import intercommunication running water import pipe of condenser, the refrigerant export passes through second pipeline intercommunication spray absorption tower, the first reposition of redundant personnel export of backward flow distributor passes through pipeline intercommunication rectifying column, the second reposition of redundant personnel export of backward flow distributor passes through the import of pipeline intercommunication first product jar. The rectification efficiency is high, and the material extraction effect is good; and effectively utilize the running water of condenser to pass through the spray absorption tower and absorb the gas that easily dissolves water, reduce the emission of gas in the test process.

Description

Rectification experimental equipment

Technical Field

The utility model belongs to the technical field of rectification experimental equipment, and particularly relates to rectification experimental equipment.

Background

The rectification is a distillation method for separating the liquid mixture with high purity by using reflux, is the liquid mixture separation operation with the widest industrial application, and is widely applied to the departments of petroleum, chemical industry, light industry, food, metallurgy and the like. According to the operation mode, continuous rectification and batch rectification can be classified; according to the component number of the mixture, binary rectification and multi-element rectification can be classified; depending on whether additives affecting vapor-liquid balance are added to the mixture, they can be classified into ordinary rectification and special rectification (including extractive rectification, azeotropic rectification and salified rectification), and if the rectification process is accompanied by chemical reaction, they are called reactive rectification.

The existing laboratory rectifying equipment has the advantages of simple structure, low rectifying efficiency and unsatisfactory material extraction effect; and the cooling water of the condenser is disposable, so that great waste is caused.

Disclosure of Invention

The utility model provides the rectification experimental equipment for solving the technical problems, which has high rectification efficiency and good material extraction effect; and effectively utilize the running water of condenser to pass through the spray absorption tower and absorb the gas that easily dissolves water, reduce the emission of gas in the test process.

The technical scheme for solving the technical problems is as follows: the rectification experimental equipment comprises: the device comprises a raw material tank, a raw material pump, a first product tank, a reboiler, a second product tank, a condenser, a spray absorption tower and a rectifying tower, wherein the raw material pump conveys liquid in the raw material tank to the rectifying tower through a first conveying pipeline, the bottom of the rectifying tower is communicated with the reboiler, the reboiler is communicated with the second product tank through a pipeline, the top of the rectifying tower is communicated with a heating medium inlet of the condenser, a heating medium outlet is communicated with an inlet of a reflux distributor, a cooling medium inlet of the condenser is communicated with a tap water inlet pipe, a cooling medium outlet is communicated with the spray absorption tower through a second conveying pipeline, a first shunt outlet of the reflux distributor is communicated with the rectifying tower through a pipeline, a second shunt outlet of the reflux distributor is communicated with an inlet of the first product tank through a third conveying pipeline, and an outlet of the first product tank is communicated with the spray absorption tower, and an outlet of the spray absorption tower is communicated with a tap water outlet pipe.

The beneficial effects are that:

1. the liquid is partially evaporated and condensed for a plurality of times by the cooperation of the rectifying tower and the reboiler, so that the rectifying efficiency is high, and the material extraction effect is good;

2. the tap water of the condenser is utilized to absorb the gas which is easy to dissolve in water through the spray absorption tower, so that the emission of the gas in the test process is reduced.

Preferably, one end of the first conveying pipeline, which is far away from the material tank, is communicated with one end of the first branch and one end of the second branch, and the other end of the first branch and the other end of the second branch are both communicated with the rectifying tower.

The beneficial effects are that: two raw material inlets are arranged, a single raw material inlet or two raw material inlets can be selected according to actual needs and opened simultaneously, and the operation is convenient.

Preferably, the connection point of the first branch connected with the rectifying tower is higher than the connection point of the second branch connected with the rectifying tower.

The beneficial effects are that: different feed inlets are selected according to the nature of the liquid mixed solution.

Preferably, a first rotor flowmeter is arranged on the first conveying pipeline.

The beneficial effects are that: the flow of the raw material on the first conveying pipeline is accurately measured.

Preferably, the third conveying pipeline is provided with a speed-regulating air pump.

The beneficial effects are that: the gas which is easy to dissolve in water after rectification is pumped into a spray absorption tower by a speed regulating air pump to be absorbed.

Preferably, the first branch is provided with a first regulating valve, the second branch is provided with a second regulating valve, the third conveying pipeline is provided with a third regulating valve on the left side of the speed regulating air pump, the third conveying pipeline is provided with a fourth regulating valve on the right side of the speed regulating air pump, and the second conveying pipeline is provided with a fifth regulating valve close to the spray absorption tower.

The beneficial effects are that: and the pipeline is provided with a regulating valve, so that the opening or closing of the pipeline can be controlled conveniently.

Preferably, the first product tank is communicated with the condenser through a return pipeline, and a second rotameter is arranged on the return pipeline.

The beneficial effects are that: the arrangement of the reflux pipeline can further condense heavy component gas of residues in the gas into liquid, so that the separation efficiency is improved.

Preferably, a first temperature sensor is arranged in the middle of the rectifying tower, a second temperature sensor is arranged on the top of the rectifying tower, a third temperature sensor is arranged on the reboiler, a fourth temperature sensor is arranged on the condenser, and a fifth temperature sensor is arranged on the reflux pipeline.

The beneficial effects are that: the temperature sensor can read the temperature of corresponding equipment, is convenient for carry out unified control and adjustment, guarantees that the material draws effectually.

Preferably, the device further comprises a standby pipeline, one end of the standby pipeline is communicated with the second conveying pipeline, the other end of the standby pipeline is communicated with a tap water outlet pipe, and a standby regulating valve is arranged on the standby pipeline.

The beneficial effects are that: the light component gas which is not easy to dissolve in water is directly discharged into a sewer without being absorbed by a spray tower.

Preferably, a first liquid level alarm is arranged on the raw material tank, and a second liquid level alarm is arranged on the reboiler.

The beneficial effects are that: can remind the experimenter that stock tank stock solution is not enough through first liquid level alarm, prevent the rectifying column dry combustion method, destroy electric heating pipe, also can prevent that the liquid level from being too high causes the flooding simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a raw material tank; 2. a first liquid level alarm; 3. a raw material pump; 4. a first product tank; 5. a first rotor flow meter; 6. a first regulating valve; 7. a second regulating valve; 8. a first temperature sensor; 9. a second temperature sensor; 10. a second liquid level alarm; 11. a pressure sensor; 12. a reboiler; 13. a first sampling valve; 14. a second product tank; 15. a first drain valve; 16. a first level gauge; 17. a first drain valve; 18. a third temperature sensor; 19. a second drain valve; 20. a second level gauge; 21. a product regulating valve; 22. a second drain valve; 23. a third regulating valve; 24. a speed-regulating air pump; 25. a reflow dispenser; 26. a condenser; 27. a fourth temperature sensor; 28. a third drain valve; 29. spraying an absorption tower; 30. a fourth regulating valve; 31. a fifth regulating valve; 32. a reflux regulating valve; 33. a second sampling valve; 34. a fourth drain valve; 35. a second rotameter; 36. a rectifying tower; 37. a standby regulating valve; 38. a fifth temperature sensor; 39. a first delivery conduit; 40. a second delivery conduit; 41. a first branch; 42. a second branch; 43. a return line; 44. and (5) a standby pipeline.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Examples

As shown in fig. 1, this embodiment provides a rectification experiment apparatus, including: the liquid level detector comprises a raw material tank 1, a raw material pump 3, a first product tank 4, a reboiler 12, a second product tank 14, a condenser 26, a spray absorption tower 29 and a rectifying tower 36, wherein the raw material tank 1 is provided with a first liquid level alarm 2, an experimenter can be reminded of insufficient liquid storage of the raw material tank through the first liquid level alarm, dry burning of the rectifying tower is prevented, an electric heating pipe is damaged, and meanwhile, flooding caused by overhigh liquid level can be prevented; the reboiler 12 is provided with a second liquid level alarm 10, and the second liquid level alarm 10 has a similar function. The reboiler 12 is provided with a pressure sensor 11, the raw material pump 3 conveys the liquid in the raw material tank 1 to the rectifying tower 36 through a first conveying pipeline 39, the first conveying pipeline 39 is provided with a first rotor flowmeter 5 which is convenient for measuring the flow of the liquid in the first conveying pipeline 39, the bottom of the rectifying tower 36 is communicated with the reboiler 12, the reboiler 12 is communicated with the second product tank 14 through a pipeline, the lower part of the second product tank 14 is provided with a first liquid discharge valve 15 and the upper part is provided with a first liquid level device 16, the pipeline between the reboiler 12 and the second product tank 14 is provided with a first sampling valve 13, the top of the rectifying tower 36 is communicated with a heating medium inlet of the condenser 26, the condenser 26 is provided with a third emptying valve 28, a heating medium outlet is communicated with an inlet of the reflux distributor 25, a cooling medium inlet of the condenser 26 is communicated with a tap water inlet pipe, the refrigerant outlet is communicated with the spray absorption tower 29 through a second conveying pipeline 40, a fourth emptying valve 34 is arranged on the spray absorption tower 29, a first diversion outlet of the backflow distributor 25 is communicated with the rectifying tower 36 through a pipeline, a second sampling valve 33 and a backflow regulating valve 32 are arranged on a pipeline between the first diversion outlet of the backflow distributor 25 and the rectifying tower 36, a second diversion outlet of the backflow distributor 25 is communicated with an inlet of the first product tank 4 through a pipeline, a product regulating valve 21 is arranged on a pipeline between the second diversion outlet of the backflow distributor 25 and the first product tank 4, a second liquid level device 19 and a first emptying valve 17 are arranged on the lower part of the first product tank 4, an outlet of the first product tank 4 is communicated with the spray absorption tower 29 through a third conveying pipeline, the third conveying pipeline is provided with a speed regulating air pump 24, and the outlet of the spray absorption tower 29 is communicated with a tap water outlet pipe.

It should be noted that, the model of the reflux distributor 25 adopted by the device is DR-JL-G02, which belongs to the prior art, and therefore, will not be described further.

Preferably, one end of the first conveying pipe 39, which is far away from the material tank 1, is communicated with one end of the first branch 41 and one end of the second branch 42, the other end of the first branch 41 and the other end of the second branch 42 are both communicated with the rectifying tower 36, the connection point of the first branch 41 to the rectifying tower 36 is higher than the connection point of the second branch 42 to the rectifying tower 36, and a suitable material conveying pipe can be selected according to practical requirements.

Preferably, the first branch 41 is provided with a first regulating valve 6, the second branch 42 is provided with a second regulating valve 7, the third conveying pipeline is provided with a third regulating valve 23 and a second emptying valve 22 on the left side of the speed-regulating air pump 24, the third conveying pipeline is provided with a fourth regulating valve 30 on the right side of the speed-regulating air pump 24, the second conveying pipeline 40 is provided with a fifth regulating valve 31 near the spray absorption tower 29, and the setting of the regulating valves is convenient for controlling the opening or closing of the pipeline, so that experiments can be carried out smoothly.

Preferably, the first product tank 4 is communicated with the condenser 26 through a return pipeline 43, the return pipeline 43 is provided with a second rotameter 35, and the return pipeline can further condense heavy component gas of residues in the gas into liquid, so that the separation efficiency is improved.

Preferably, the middle part of the rectifying tower 36 is provided with a first temperature sensor 8, the top of the rectifying tower 36 is provided with a second temperature sensor 9, the reboiler 12 is provided with a third temperature sensor 18, the condenser 26 is provided with a fourth temperature sensor 27, the reflux pipeline 43 is provided with a fifth temperature sensor 38, the temperature sensor can read the temperature of corresponding equipment, unified monitoring and adjustment are convenient, and good material extraction effect is ensured.

Preferably, the device further comprises a standby pipeline 44, one end of the standby pipeline 44 is communicated with the second conveying pipeline 40, the other end of the standby pipeline 44 is communicated with a tap water outlet pipe, the standby pipeline 44 is provided with a standby regulating valve 37, and the gas of the light component which is not easy to dissolve in water is directly discharged into a sewer without being absorbed by a spray tower.

When the rectification experiment equipment is used, the water-ethanol mixed aqueous solution is filled into a raw material tank 1, the raw material is conveyed to a rectifying tower 36 by a raw material pump 3, the components formed by the aqueous solution have different volatilities, and the vapor pressures of the components are different at the same temperature, and the water-ethanol solution is subjected to multiple partial evaporation and partial condensation so as to achieve the purpose of separation; the separated light component ethanol gas and part of water vapor are condensed and refluxed through a condenser 26, the condensed liquid enters a rectifying tower 36 for rectification again through a reflux distributor 25, the condensed non-condensable gas enters a first product tank 4, condensed water flowing through the condenser 26 flows out of the condenser 26 and enters a spray absorption tower 29, the ethanol gas in the first product tank 4 is conveyed to the spray absorption tower 29 through a speed regulating air pump 24, and because the ethanol gas has high solubility in water and is easy to dissolve in water, and the temperature of tap water entering the spray absorption tower 29 is lower than the boiling point of ethanol, the ethanol gas can be dissolved in water and is discharged into a sewer; the separated heavy components are indirectly heated by steam through a reboiler 12, and the product is condensed and enters a second product tank 14 for storage.

In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A rectification apparatus, comprising:

the utility model provides a feed tank (1), raw materials pump (3), first product jar (4), reboiler (12), second product jar (14), condenser (26), spray absorber (29) and rectifying column (36), raw materials pump (3) will liquid in feed tank (1) is carried extremely through first pipeline (39) rectifying column (36), the bottom intercommunication of rectifying column (36) reboiler (12), reboiler (12) are through pipeline intercommunication second product jar (14), rectifying column (36) top intercommunication the heat medium import of condenser (26), the heat medium export intercommunication has the import of reflux distributor (25), the refrigerant import intercommunication running water import pipe of condenser (26), the refrigerant export is through second pipeline (40) intercommunication spray absorber (29), the first reposition of redundant personnel export of reflux distributor (25) is through pipeline intercommunication rectifying column (36), the second reposition of redundant personnel of reflux distributor (25) is through pipeline intercommunication first product jar (4), the export of first product jar (29) are through the import of third pipeline (29), the export of running water export of the third pipeline (29) is through the spray absorber.

2. The rectification experimental equipment according to claim 1, wherein one end of the first conveying pipeline (39) far away from the raw material tank (1) is communicated with one end of a first branch (41) and one end of a second branch (42), and the other end of the first branch (41) and the other end of the second branch (42) are both communicated with the rectification column (36).

3. Rectification apparatus according to claim 2, wherein the connection point of the first branch (41) to the rectification column (36) is located higher than the connection point of the second branch (42) to the rectification column (36).

4. A rectification apparatus as claimed in claim 3, wherein the first conveying conduit (39) is provided with a first rotor flow meter (5).

5. The rectification apparatus according to claim 4, wherein the third conveying pipe is provided with a speed regulating air pump (24).

6. The rectification experimental facility according to claim 5, wherein a first regulating valve (6) is arranged on the first branch (41), a second regulating valve (7) is arranged on the second branch (42), a third regulating valve (23) is arranged on the third conveying pipeline and positioned on the left side of the speed regulating air pump (24), a fourth regulating valve (30) is arranged on the third conveying pipeline and positioned on the right side of the speed regulating air pump (24), and a fifth regulating valve (31) is arranged on the second conveying pipeline (40) close to the spray absorption tower (29).

7. The rectification test apparatus according to claim 6, wherein the first product tank (4) communicates with the condenser (26) via a return conduit (43), the return conduit (43) being provided with a second rotameter (35).

8. The rectification experimental device according to claim 7, characterized in that a first temperature sensor (8) is arranged on the middle part of the rectification column (36), a second temperature sensor (9) is arranged on the top of the rectification column (36), a third temperature sensor (18) is arranged on the reboiler (12), a fourth temperature sensor (27) is arranged on the condenser (26), and a fifth temperature sensor (38) is arranged on the return conduit (43).

9. The rectification experimental device according to any one of claims 1-8, further comprising a backup pipe (44), wherein one end of the backup pipe (44) is connected to the second conveying pipe (40), the other end is connected to a tap water outlet pipe, and a backup regulating valve (37) is arranged on the backup pipe (44).

10. Rectification test apparatus according to any one of claims 1-8, wherein the feed tank (1) is provided with a first liquid level alarm (2) and the reboiler (12) is provided with a second liquid level alarm (10).