CN214714389U - Low-temperature vacuum evaporation device - Google Patents

Abstract

The utility model relates to an evaporimeter field discloses a low temperature vacuum evaporation device. The device comprises a plurality of effect evaporators, a condenser, a vacuumizing device and a liquid storage tank, wherein each effect evaporator comprises a separation chamber, a heater and a liquid discharge port, the separation chamber is communicated with a feeding pipeline, the heater is arranged at the bottom of the separation chamber, the liquid discharge port is arranged at the bottom of the heater, the liquid discharge port at the bottom of each effect evaporator is communicated with the liquid storage tank, a secondary steam port is arranged at the top of each effect evaporator, heating steam is input into a heater air inlet of a first effect evaporator, and the secondary steam port of the previous effect evaporator is communicated with a heater air inlet of a next effect evaporator. The condenser comprises a condenser body, a gas-phase inlet is arranged on the upper portion of the condenser body, a gas-liquid separator is arranged on the lower portion, located in the horizontal direction of the circulating water inlet, of the inside of the condenser body, a gas-phase outlet connected with the gas-liquid separator is arranged on the side wall of the condenser body, the gas-phase inlet is communicated with a secondary steam port of the last-effect evaporator, and the gas-phase outlet is communicated with a vacuumizing device.

Description

Low-temperature vacuum evaporation device

Technical Field

The utility model belongs to the evaporimeter field especially relates to a low temperature vacuum evaporation device.

Background

At present, evaporators are widely applied to the fields of chemical industry, pharmacy, food and the like. The multiple-effect forced circulation evaporation device is operated by connecting a plurality of evaporators, and secondary steam generated in the evaporation of the former evaporator is used as heating steam of the latter evaporator. Because the heat energy is repeatedly utilized for many times, the heat energy consumption is obviously reduced, and in order to reduce the boiling point of materials and improve the working efficiency, the evaporator generally works in a vacuum state. However, the last cooling process of the evaporator has the problem that non-condensable gas and gas which is not cooled down are blocked in the tube side to form air resistance, so that a cooling system of the evaporation device is easy to generate pressure or system vacuum imbalance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an evaporator with simple structure, stable distillation system and good use effect.

The utility model provides a following technical scheme: a low-temperature vacuum evaporation device comprises multiple-effect evaporators, a condenser, a vacuumizing device and a liquid storage tank, wherein each effect of evaporator comprises a separation chamber communicated with a feeding pipeline, a heater arranged at the bottom of the separation chamber and a liquid outlet arranged at the bottom of the heater, the liquid outlet at the bottom of each effect of evaporator is communicated with the liquid storage tank, a secondary steam port is arranged at the top of each effect of evaporator, heating steam is input into an air inlet of the heater of a first effect of evaporator, and the secondary steam port of the former effect of evaporator is communicated with an air inlet of the heater of the latter effect of evaporator;

the condenser include the condenser body, the upper portion of condenser body set up the gas phase import, the lower part of condenser body sets up the condensate export, the upper portion lateral wall of condenser body sets up the circulating water export, the lower part lateral part of condenser body sets up the circulating water import, the inside lower part that is located circulating water import horizontal direction of condenser body sets up vapour and liquid separator, set up the gas phase export of being connected with vapour and liquid separator on the lateral wall of condenser body, the secondary steam mouth intercommunication of gas phase import and last effect evaporator, gas phase export and evacuating device intercommunication.

Furthermore, a heating tube array is vertically arranged in the heater, a middle tube is vertically arranged in the center of the heater, and the middle tube is communicated with the separation chamber and the liquid outlet.

The water outlet of the heater and the condensate outlet are communicated with the water reservoir through a pipeline.

Furthermore, the cooling water of the condenser is water in a water storage pool and is extracted by a water pump.

Further, the circulating water outlet is communicated with the water storage tank.

Furthermore, a mist eliminator is arranged inside the separation chamber.

The utility model has the advantages that: 1. the condenser is additionally provided with a gas-liquid separation device, and non-condensable gas and gas which is not cooled down in the condenser can be discharged through a gas-phase outlet of the gas-liquid separator. So that the whole evaporator operates stably. 2. The water storage tank is used for collecting cooling water, and the water pump is used for recycling water, so that water resources can be saved. 3. The foam that the separation chamber is inside to set up mist eliminator can also effectively be clear away to the inside foam that plays of separation chamber, avoids the foam to influence evaporation effect.

Drawings

Fig. 1 is a structural diagram of an embodiment of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiment 1, as shown in fig. 1 the utility model discloses a multiple effect evaporator 1, condenser 2, evacuating device 3, liquid storage tank 4 and cistern 5, every effect evaporator is all including being provided with the disengagement chamber 11 with charge-in pipeline 10 intercommunication, the setting is at the heater 12 of disengagement chamber 11 bottom, the leakage fluid dram 16 of setting in heater 12 bottom, every effect evaporator bottom leakage fluid dram 16 intercommunication liquid storage tank 4, the top is equipped with secondary steam mouth 13, the heater 12 air inlet input heating steam of first effect evaporator, the secondary steam mouth 13 of preceding effect evaporator and the heater 12 air inlet intercommunication of the latter effect evaporator.

For improving the utility model discloses the cooling effect, the utility model discloses the condenser 2 who adopts is the wound form condenser, including condenser body 21. The upper portion of condenser body 21 sets up gas phase inlet 24, the lower part of condenser body 21 sets up condensate outlet 25, the upper portion lateral wall of condenser body 21 sets up circulating water outlet 27, the lower part lateral part of condenser body 21 sets up circulating water inlet 26, the inside lower part that is located circulating water inlet 26 horizontal direction of condenser body 21 sets up vapour and liquid separator 22, set up the gas phase export 23 of being connected with vapour and liquid separator 22 on the lateral wall of condenser body 21, this condenser installs gas-liquid separation device additional at the condenser body, the gaseous gas phase export discharge that can pass through vapour and liquid separator of noncondensable gas and not cooling down in the condenser. Making the cooling system stable. And the structure is simple, and the using effect is good. In this embodiment, the gas phase inlet 24 is communicated with the secondary steam port 13 of the last-effect evaporator 1, and the gas phase outlet 23 is communicated with the vacuum extractor 3. The water outlet of the heater 12 and the condensate outlet 25 are communicated with the water reservoir 5 through pipelines.

In this embodiment, a heating tube array 14 is vertically arranged in the heater 12, a middle tube 15 is vertically arranged in the center, and the middle tube 15 is communicated with the separation chamber 11 and a liquid outlet 16.

In order to save water resources, the cooling water of the condenser 2 is water in a water storage tank 5 and is extracted by a water pump 6. The circulating water outlet 27 is communicated with the water reservoir 5.

In order to avoid that the foam inside the separation chamber influences the evaporation effect, a mist eliminator 5 is arranged inside the separation chamber 11.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A low-temperature vacuum evaporation device comprises multiple-effect evaporators (1), a condenser (2), a vacuumizing device (3) and a liquid storage tank (4), and is characterized in that each effect evaporator comprises a separation chamber (11) communicated with a feeding pipeline (10), a heater (12) arranged at the bottom of the separation chamber (11) and a liquid discharge port (16) arranged at the bottom of the heater (12), the liquid discharge port (16) at the bottom of each effect evaporator is communicated with the liquid storage tank (4), a secondary steam port (13) is arranged at the top of each effect evaporator, heating steam is input into an air inlet of the heater (12) of a first effect evaporator, and the secondary steam port (13) of the former effect evaporator is communicated with an air inlet of the heater (12) of the latter effect evaporator;

condenser (2) including condenser body (21), the upper portion of condenser body (21) set up gaseous phase import (24), the lower part of condenser body (21) sets up condensate export (25), the upper portion lateral wall of condenser body (21) sets up circulating water export (27), the lower part lateral part of condenser body (21) sets up circulating water import (26), condenser body (21) inside is located the lower part of circulating water import (26) horizontal direction and sets up vapour and liquid separator (22), set up gaseous phase export (23) of being connected with vapour and liquid separator (22) on the lateral wall of condenser body (21), gaseous phase import (24) and last effect evaporator's secondary steam mouth (13) intercommunication, gaseous phase export (23) and evacuating device (3) intercommunication.

2. A low-temperature vacuum evaporation device according to claim 1, wherein the heater (12) is vertically provided with a heating array pipe (14) inside, a middle pipe (15) is vertically arranged in the center, and the middle pipe (15) is communicated with the separation chamber (11) and the liquid outlet (16).

3. A cryogenic vacuum evaporation device according to claim 1, further comprising a reservoir (5), wherein the water outlet of the heater (12) and the condensate outlet (25) are connected to the reservoir (5) by a pipe.

4. A cryogenic vacuum evaporator according to claim 3, characterized in that the cooling water of the condenser (2) is water in a reservoir (5) which is pumped by a water pump (6).

5. A cryogenic vacuum evaporator according to claim 3, characterized in that the circulating water outlet (27) is connected to a reservoir (5).

6. A cryogenic vacuum evaporation device according to claim 1, wherein a mist trap is provided inside the separation chamber (11).

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