CN212222832U

CN212222832U - Ethanol recovery system in aerogel production

Info

Publication number: CN212222832U
Application number: CN201922417594.7U
Authority: CN
Inventors: 陈勇; 陈世忠; 段国栋
Original assignee: Xiangshui Huaxia Special Material Technology Development Co ltd
Current assignee: Xiangshui Huaxia Special Material Technology Development Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-12-25
Anticipated expiration: 2029-12-28

Abstract

The utility model provides an ethanol recovery system in aerogel production, the electric heater comprises a heater, heater connection has oil and gas separator and evaporimeter, oil and gas separator one side is connected with the expansion tank, the opposite side is connected with conduction oil heating system, the evaporimeter is connected with the foam and catches the ware, the foam is caught the ware and is connected with two vertical tubular heat exchangers first and vertical tubular heat exchanger second that set up side by side, vertical tubular heat exchanger first lower part is provided with cavity first, cavity first is connected with collecting tank first through pipeline first, be provided with valve first on the pipeline first, vertical tubular heat exchanger second lower part is provided with cavity second, cavity second bottom is connected with collecting tank second through pipeline second, be provided with valve second on the pipeline second. The utility model is provided with two vertical tube heat exchangers, and can obtain ethanol with different temperatures by selecting primary or secondary condensation according to the needs; and partial waste heat of the ethanol is used for sol-gel and drying, so that the ethanol is recycled.

Description

Ethanol recovery system in aerogel production

Technical Field

The utility model belongs to the technical field of the aerogel production technology, concretely relates to ethanol recovery system in aerogel production.

Background

Aerogel composite materials and products thereof are a new revolutionary thermal insulation material which is rapidly developed in recent years due to extremely low thermal conductivity, wide temperature adaptability, excellent fire resistance and flame retardance, and a large amount of ethanol is used as a solvent in the production process of aerogel materials. The use of large amounts of ethanol, resulting in storage and transportation of large amounts of ethanol, increases safety risks and production costs of the aerogel material. The ethanol is recycled and becomes the necessary choice for enterprises.

In the general aerogel production process, the ethanol recovery adopts a rectification mode, so that the energy consumption is high, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides an ethanol recovery system in aerogel production.

The utility model discloses a realize through following technical scheme: the utility model provides an ethanol recovery system in aerogel production, includes the heater, the heater connection has oil and gas separator and evaporimeter, oil and gas separator one side is connected with the inflation groove, and the opposite side is connected with conduction oil heating system, the evaporimeter is connected with the foam and catches the ware, the foam is caught the ware and is connected with two vertical tubulation heat exchangers A and vertical tubulation heat exchanger B that set up side by side, vertical tubulation heat exchanger A lower part is provided with cavity A, cavity A is connected with collecting tank A through pipeline A, pipeline A is last to be provided with valve A, vertical tubulation heat exchanger B lower part is provided with cavity B, cavity B bottom is connected with collecting tank B through pipeline B, be provided with valve B on the pipeline B.

The heat conducting oil heating system comprises two heat oil pumps, more than one heating element and a control unit, wherein the heating elements are all arranged in the heat insulation box body, and the space between the heating elements and the heat insulation box body is filled with aerogel heat insulation materials; the heating element comprises an oil storage cavity, an explosion-proof box, an aerogel heat-insulating layer, a temperature measuring pipe, more than one heating pipe and more than one guide plate.

And cooling water inlets and outlets are formed in the vertical tube type heat exchanger A and the vertical tube type heat exchanger B, and the tail part of the vertical tube type heat exchanger B is connected with vacuum.

And partition plates are arranged in the foam catcher, the vertical tubular heat exchanger A and the vertical tubular heat exchanger B.

The outer sides of the heater and the evaporator are wrapped with aerogel heat insulation materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be provided with two vertical shell and tube heat exchangers, can once select still the secondary condensation as required, can obtain the ethanol of different temperatures.

2. The utility model discloses need not thoroughly condense ethanol, utilize the partial waste heat of ethanol for sol gel and drying have realized the recycle of ethanol, have reduced ethanol quantity and transportation in the aerogel material production process, reduce aerogel manufacturing cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the drawings: 1. a heater; 2. an oil-gas separator; 3. an evaporator; 4. an expansion tank; 5. a foam catcher; 6. a vertical tubular heat exchanger A; 7. a vertical tube nest heat exchanger B; 8. a heat conducting oil heating system; 81. a hot oil pump; 82. a heating element; 821. an oil storage chamber; 822. an explosion-proof box; 823. an aerogel thermal insulation layer; 824. a temperature measuring tube; 825. heating a tube; 826. a baffle; 83. a control unit; 84. a heat preservation box; 85. an aerogel insulation material; 9. a cavity A; 10. a pipeline A; 11. a liquid collecting tank A; 12. a valve A; 13. a cavity B; 14. a pipeline B; 15. a liquid collecting tank B; 16. a valve B; 17. a partition plate.

Detailed Description

An ethanol recovery system in aerogel production as shown in figure 1 of the attached drawings of the specification, comprises a heater 1, the heater 1 is connected with an oil-gas separator 2 and an evaporator 3, one side of the oil-gas separator 2 is connected with an expansion tank 4, the other side is connected with a heat-conducting oil heating system 8, the evaporator 3 is connected with a foam catcher 5, the foam catcher 5 is connected with a vertical tubular heat exchanger A6 and a vertical tubular heat exchanger B7 which are arranged in parallel, a cavity A9 is arranged at the lower part of the vertical tubular heat exchanger A6, the cavity A9 is connected with a liquid collecting tank A11 through a pipeline A10, a valve A12 is arranged on the pipeline A10, a cavity B13 is arranged at the lower part of the vertical tube heat exchanger B7, the bottom of the cavity B13 is connected with a liquid collecting tank B15 through a pipeline B14, and a valve B16 is arranged on the pipeline B14.

The heat conducting oil heating system 8 comprises two heat oil pumps 81, more than one heating element 82 and a control unit 83, wherein the heating elements 82 are all arranged in an insulation box 84, and a gap between the heating elements 82 and the insulation box 84 is filled with aerogel heat insulation materials 85; the heating element 82 comprises an oil storage cavity 821, an explosion-proof box 822, an aerogel heat insulation layer 823, a temperature measuring pipe 824, more than one heating pipe 825 and more than one flow guide plate 826.

And cooling water inlets and outlets are formed in the vertical tubular heat exchanger A6 and the vertical tubular heat exchanger B7, and the tail part of the vertical tubular heat exchanger B7 is connected with vacuum.

And partition plates 17 are arranged in the foam catcher 5, the vertical tubular heat exchanger A6 and the vertical tubular heat exchanger B7.

The heater 1 and the evaporator 3 are wrapped with aerogel insulation material.

Instructions for use:

and stopping feeding the liquid after the recovered ethanol enters the heater 1 and reaches a set liquid level. The heat conducting oil heating system 8 provides heat for the system and starts to heat and concentrate. The expansion tank 4 prevents the heat conduction oil from heating and expanding to enable the heating system to have overpressure, so that the service life of the heat conduction oil is prolonged, and meanwhile, the heater, the hot oil pump and other equipment parts are indirectly protected. After being heated to a certain temperature, the ethanol enters the evaporator 3 to be evaporated to generate secondary steam, and the secondary steam enters the vertical tubular heat exchanger A6 through the foam catcher 5. The foam catcher 5 can prevent the ethanol from condensing and generating foam in the evaporation process. And opening a valve A10, closing a valve B16, opening a cooling water inlet and a cooling water outlet on the vertical tube type heat exchanger 6, and condensing the ethanol into a liquid collecting tank A11 by adopting a water cooling mode. If the valve A10 is closed and the valve B16 is opened, the secondary steam enters the vertical tubular heat exchanger A6 and the vertical tubular heat exchanger B7 in sequence for secondary condensation to obtain ethanol with different temperatures.

The utility model discloses be provided with two vertical shell and tube heat exchangers, can once select still the secondary condensation as required, can obtain the ethanol of different temperatures.

Compared with the conventional rectification, the whole system has low requirement on the purity of ethanol in the production process of the aerogel, so that the reduced pressure distillation can meet the requirement. In the condensation process, the ethanol does not need to be completely condensed, and partial waste heat of the ethanol is utilized for sol-gel and drying, so that the recycling of the ethanol is realized, the ethanol consumption and the transportation in the production process of the aerogel material are reduced, and the aerogel production cost is reduced. The ethanol recycling efficiency of the whole device is higher.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.

Claims

1. An ethanol recovery system in aerogel production which characterized in that: the device comprises a heater (1), wherein the heater (1) is connected with an oil-gas separator (2) and an evaporator (3), one side of the oil-gas separator (2) is connected with an expansion tank (4), the other side of the oil-gas separator is connected with a heat transfer oil heating system (8), the evaporator (3) is connected with a foam catching device (5), the foam catching device (5) is connected with a vertical tubular heat exchanger A (6) and a vertical tubular heat exchanger B (7) which are arranged side by side, a cavity A (9) is arranged at the lower part of the vertical tubular heat exchanger A (6), the cavity A (9) is connected with a liquid collecting tank A (11) through a pipeline A (10), a valve A (12) is arranged on the pipeline A (10), a cavity B (13) is arranged at the lower part of the vertical tubular heat exchanger B (7), and the bottom of the cavity B (13) is connected with a liquid collecting tank B (15, and a valve B (16) is arranged on the pipeline B (14).

2. An aerogel production ethanol recovery system as claimed in claim 1, wherein: the heat conduction oil heating system (8) comprises two heat oil pumps (81), more than one heating element (82) and a control unit (83), the heating elements (82) are all arranged in an insulation box (84), and a gap between the heating elements (82) and the insulation box (84) is filled with aerogel heat insulation materials (85); the heating element (82) comprises an oil storage cavity (821), an explosion-proof box (822), an aerogel heat insulation layer (823), a temperature measuring pipe (824), more than one heating pipe (825) and more than one guide plate (826).

3. An aerogel production ethanol recovery system as claimed in claim 1, wherein: and cooling water inlets and outlets are formed in the vertical tubular heat exchanger A (6) and the vertical tubular heat exchanger B (7), and the tail part of the vertical tubular heat exchanger B (7) is connected with vacuum.

4. An aerogel production ethanol recovery system as claimed in claim 1, wherein: partition plates (17) are arranged in the foam catcher (5), the vertical tubular heat exchanger A (6) and the vertical tubular heat exchanger B (7).

5. An aerogel production ethanol recovery system as claimed in claim 1, wherein: the outer sides of the heater (1) and the evaporator (3) are wrapped with aerogel heat insulation materials.