TWM504220U - Micro-mist evaporator - Google Patents

Description

Micro-mist evaporator

This creation relates to an evaporator, and more particularly to an evaporator for the front stage evaporation step of a distillation system.

The method of separating the mixture by heating is vaporized by the difference in boiling points of the components in the liquid, and the method of separating the mixture is "distillation". Distillation removes impurities and results in a purer liquid. Conventional organic solvent distillation techniques commonly include both "atmospheric distillation" and "vacuum distillation" systems. Please refer to the first figure, which is a schematic diagram of a conventional vacuum distillation system. The conventional vacuum distillation system comprises an evaporator 1, a conduit 2, a condenser 3, a collecting tank 4 and a vacuum pumping pump 5, The evaporator 1 comprises an evaporation tank 101, an agitator 102, a hot water pipe 103, a pump 104, a heat exchanger 105 and a high pressure steam boiler (not shown). The conventional vacuum distillation system uses the pump 104 to heat the organic solvent heated by the hot water pipe 103 through the heat exchanger 105 until the temperature of the organic solvent rises above the saturation temperature of the operating pressure of the vacuum evaporation system. The organic solvent is vaporized to a vapor under vacuum. The vapor of the organic solvent is pumped along the conduit 2 to the condenser 3 to cool down to a pure organic solvent, and finally into the collection tank 4. The heat energy of the heat exchanger of the conventional vacuum distillation system comes from the high temperature steam provided by the high pressure steam boiler, which enters the heat exchanger via the steam pipe 6, transfers its heat energy to the organic solvent, and then cools the water into the drain pipe 7 discharge.

However, this will cause a problem that the high pressure steam boiler will scale, the pot Once the furnace is fouled, it not only consumes a lot of fuel, but also causes local overheating, and the risk of accident or failure is extremely high.

The main purpose of this creation is to provide a micro-mist evaporator that sprays liquid to the heater by means of an atomizing nozzle to achieve rapid evaporation of the liquid without the need for a heat exchanger and a high-pressure steam boiler.

In order to achieve the foregoing objects, the present invention will provide a micro-mist evaporator comprising an evaporation tank, a heater and a spray device.

The evaporation tank surrounds an accommodating space for accommodating a liquid.

The heater is disposed in the accommodating space and above the liquid level of the liquid.

The spraying device comprises at least one atomizing nozzle and a water pumping device, wherein the atomizing nozzle is disposed in the accommodating space, the water pumping device is connected to the evaporation tank and the atomizing nozzle, and the pumping device pumps the liquid to the atomizing nozzle The atomizing nozzle atomizes the liquid and sprays it toward the heater. Wherein, the atomizing nozzle is located below the heater and above the liquid level of the liquid. Wherein, the atomizing nozzle comprises an opening facing the top of the evaporation tank. Wherein, the atomizing nozzle is located on the axis of the heater. Wherein, the pumping device comprises a pump, a water pumping pipe and an outlet pipe, the pumping device is disposed outside the evaporation tank, the water pumping pipe is connected between the accommodating space of the evaporation tank and the pump, the water outlet pipe Connected between the pump and the atomizing nozzle.

According to a preferred embodiment, the heater is in the form of a spiral mesh. Preferably, the axial direction of the heater is perpendicular to the liquid level of the liquid.

According to a preferred embodiment, the heater is grid-shaped. Preferably, the heater comprises a plurality of longitudinal ribs and at least one transverse rib, the longitudinal ribs being circumferentially arranged, the transverse ribs laterally surrounding Connect each longitudinal rib.

According to a preferred embodiment, the spray device comprises a plurality of atomizing spray heads that are linearly arranged in a row at intervals.

According to a preferred embodiment, the spray device comprises a plurality of atomizing spray heads that are circumferentially spaced apart.

The effect of this creation is to achieve the effect of rapidly evaporating liquid into vapor by a combination of a heater and a spray device, eliminating the need for a heat exchanger and a high-pressure steam boiler, saving fuel consumed by a high-pressure steam boiler, and also enabling the creation of the present invention. The overall volume is reduced to be smaller than the prior art, saving space and reducing costs. Furthermore, the heater of the present invention has a relatively large contact area. Thereby, the mass transfer area of the atomized liquid is greatly increased, and the effect of rapidly evaporating the liquid into steam is achieved, which is suitable for the organic solvent to be quickly and initially separated, indirectly achieving the effect of saving energy, and the yield of the pure organic solvent obtained. It also increased.

1‧‧‧Evaporator

101‧‧‧Evaporation tank

102‧‧‧Agitator

103‧‧‧ hot water pipe

104‧‧‧ pumping pump

105‧‧‧ heat exchanger

2‧‧‧ catheter

3‧‧‧Condenser

4‧‧‧ collection trough

5‧‧‧Vacuum pumping pump

6‧‧‧Vapor tube

7‧‧‧Drainage pipe

10‧‧‧ catheter

20‧‧‧Condenser

30‧‧‧ collection trough

40‧‧‧Evaporation tank

41‧‧‧ accommodating space

50‧‧‧heater

51‧‧‧ longitudinal ribs

52‧‧‧ transverse ribs

60‧‧‧Spray device

61‧‧‧Atomizing nozzle

611‧‧‧ openings

62‧‧‧ pumping device

621‧‧‧ pump

622‧‧‧Water pipes

623‧‧‧Outlet

The first figure is a schematic representation of a conventional vacuum distillation system.

The second figure is a schematic diagram of the first embodiment of the present creation.

The third figure is a schematic diagram of a second embodiment of the present creation.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

Referring to the second figure, the present invention provides a micro-mist evaporator which is a part of a distillation system, the distillation system further comprising a conduit 10, a condenser 20 and a The tank 30 is collected. The micro-mist evaporator includes an evaporation tank 40, a heater 50, and a spray device 60.

The evaporation tank 40 surrounds an accommodating space 41 for accommodating a liquid. In this embodiment, the liquid may be, but not limited to, an organic solvent. The duct 10 is in communication with the accommodating space 41 of the evaporation tank 40 and the condenser 20. The condenser 20 is connected to the collection tank 30.

The heater 50 is disposed in the accommodating space 41 of the evaporation tank 40 and above the liquid level of the liquid. In the present embodiment, the heater 50 has a spiral mesh shape. More specifically, the heater 50 is formed in a spiral mesh shape by winding a metal wire having good thermal conductivity into a plurality of continuous circles. Preferably, the axial direction of the spiral mesh heater 50 is perpendicular to the liquid level of the liquid.

The spray device 60 includes a plurality of atomizing spray heads 61 and a water pumping device 62. The atomizing nozzles 61 are disposed in the accommodating space 41 of the evaporation tank 40 and are located below the heater 50 and above the liquid level of the liquid. Each atomizing nozzle 61 includes an opening 611 that faces the top of the evaporation tank 40. In other embodiments, the opening 611 can also face the heater 50. The atomizing nozzles 61 are linearly arranged in a row at intervals. In other embodiments, the atomizing nozzles 61 may also be circumferentially spaced apart. The internal structure of each atomizing nozzle 61 is conventional and will not be described. The pumping device 62 includes a pump 621, a water suction pipe 622, and an outlet pipe 623. The pump 621 is disposed outside the evaporation tank 40. The water suction pipe 622 is connected between the accommodating space 41 of the evaporation tank 40 and the pump 621. The water outlet pipe 623 is connected to the pump 621 and the atomization. Between the nozzles 61.

In operation, the first embodiment of the present invention first activates the heater 50, and the pump 621 pumps the liquid from the accommodating space 41 of the evaporation tank 40 along the water suction pipe 622 and the water outlet pipe 623. Atomizing nozzle 61. The liquid is pumped to the atomizing nozzles 61 by the pump 621 to have a certain pressure, and the liquid is sprayed toward the heater 50 after being atomized by the atomizing nozzles 61. The atomized liquid evaporates into a vapor after contacting the heater 50. The vapor further along the The conduit 10 enters the condenser 20. The vapor is condensed into a liquid in the condenser 20, and the liquid flows further into the collection tank 30. The liquid in the present embodiment contains several kinds of organic solvents, and each organic solvent has a different boiling point. Therefore, different kinds of organic solvents are sequentially evaporated from low to high boiling point, and then sequentially condensed to obtain a relatively pure organic solvent.

Please refer to the third figure, which is a schematic diagram of a second embodiment of the present invention. The second embodiment is substantially the same as the first embodiment except that the heater 50 has a grid shape. More specifically, the heater 50 includes a plurality of longitudinal ribs 51 and two transverse ribs 52 that are circumferentially spaced apart, the two transverse ribs 52 laterally surrounding each of the longitudinal ribs 51. The spray device 60 includes only an atomizing spray head 61 that is located on the axis of the heater 50.

The present invention achieves the effect of rapidly evaporating liquid into vapor by the combination of the heater 50 and the spray device 60, eliminating the need for a heat exchanger and a high-pressure steam boiler, saving fuel consumed by the high-pressure steam boiler, and also enabling the creation The overall size is reduced to less than prior art, saving space and reducing costs.

Furthermore, the heater 50 of the present invention has a relatively large contact area whether it is in the form of a spiral mesh or a grid. Thereby, each small water droplet of the atomized liquid can quickly adhere to the heater 50, that is, the mass transfer area of the atomized liquid is greatly increased, and the liquid is quickly and efficiently evaporated into a vapor. The efficacy is suitable for the rapid preliminary separation of liquids containing several organic solvents. What is important is that once the evaporation efficiency is increased, the operation time of the creation can be shortened, and the energy saving effect is indirectly achieved, and the yield of various pure organic solvents is also increased.

Moreover, the openings 611 of the atomizing nozzles 61 are arranged upwardly and spaced apart, and the axial direction of the heater 50 is perpendicular to the liquid surface of the liquid, so that the opening 611 of each atomizing nozzle 61 can be directly The heater 50 is in the form of a spiral mesh or a grid. Thereby atomizing The liquid is sprayed to the heater 50 at a short distance, and can quickly adhere to the surface of the heater 50, speeding up the evaporation of various organic solvents of the atomized liquid, improving the evaporation efficiency, further achieving the effect of saving energy, and improving various kinds of effects. The yield of pure organic solvent.

In addition, the technical feature of the opening 611 of the single atomizing nozzle 61 facing upward and located on the axis of the spiral mesh or grid heater 50 will cause the liquid to be atomized and ejected from the opening 611, most of Both of them directly splash and diffuse onto the surface of the heater 50, increasing the amount of atomized liquid sprayed to the heater 50, reducing the probability of atomized liquid being sprayed onto the groove wall of the evaporation tank 40.

It is worth mentioning that the distillation system preferably further comprises a vacuum device (not shown), which may be a vacuum pump or other device having the same function, which indirectly causes the evaporation The accommodating space 41 of the groove 40 exhibits a near vacuum. Thereby, the boiling points of various organic solvents of the liquid are lowered, the evaporation efficiency of various organic solvents of the liquid is further improved, and the operation time of the creation is further shortened, so that the original energy-saving effect is maximized, and similarly, various The yield of pure organic solvents is also optimal.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any form of limitation on the creation, so that any modification or alteration of the creation made in the same creative spirit is provided. , should still be included in the scope of protection of this creative intent.

10‧‧‧ catheter

20‧‧‧Condenser

30‧‧‧ collection trough

40‧‧‧Evaporation tank

41‧‧‧ accommodating space

50‧‧‧heater

60‧‧‧Spray device

61‧‧‧Atomizing nozzle

611‧‧‧ openings

62‧‧‧ pumping device

621‧‧‧ pump

622‧‧‧Water pipes

623‧‧‧Outlet

Claims (11)

A micro-mist evaporator, comprising: an evaporation tank, enclosing an accommodating space for accommodating a liquid; a heater disposed in the accommodating space and located above a liquid level of the liquid; a spraying device comprising at least one atomizing nozzle and a water pumping device, wherein the atomizing nozzle is disposed in the accommodating space, the water pumping device is connected to the evaporation tank and the atomizing nozzle, and the pumping device pumps the liquid to the atomizing device A spray head that atomizes the liquid and sprays it toward the heater. The micro-mist evaporator of claim 1, wherein the heater has a spiral mesh shape. The micro-mist evaporator of claim 2, wherein the axial direction of the heater is perpendicular to the liquid level of the liquid. The micro-mist evaporator of claim 1, wherein the heater has a grid shape. The micro-mist evaporator of claim 4, wherein the heater comprises a plurality of longitudinal ribs and at least one transverse rib, the longitudinal ribs being circumferentially disposed, the transverse ribs laterally surrounding each of the longitudinal ribs. The micro-mist evaporator of any one of claims 1 to 5, wherein the atomizing nozzle is located below the heater and above the liquid level of the liquid. The micro-mist evaporator of claim 6, wherein the atomizing nozzle comprises an opening that faces the top of the evaporation tank. The micro-mist evaporator of claim 6, wherein the atomizing nozzle is located on an axis of the heater. The micro-mist evaporator of claim 6, wherein the spray device comprises a plurality of atomizing nozzles arranged linearly in a row. The micro-mist evaporator of claim 6, wherein the spray device comprises a plurality of atomizing nozzles, the atomizing nozzles being circumferentially disposed. The micro-mist evaporator according to any one of claims 1 to 5, wherein the pumping device comprises a pump, a water suction pipe and an outlet pipe, the pump being disposed outside the evaporation tank, the pumping A water pipe is connected between the accommodating space of the evaporation tank and the pump, and the water outlet pipe is connected between the pump and the atomizing nozzle.