CN216909179U

CN216909179U - MVR forced circulation evaporator

Info

Publication number: CN216909179U
Application number: CN202220531986.5U
Authority: CN
Inventors: 杭新健; 周旭波; 张雪阳
Original assignee: Wuxi Rongfeng Bioengineering Co ltd
Current assignee: Wuxi Rongfeng Bioengineering Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-08
Anticipated expiration: 2032-03-11

Abstract

The utility model provides a MVR forced circulation evaporimeter, includes evaporimeter, separator, condensate water jar, first heat exchanger, second heat exchanger, charge pump, condensate water pump, circulation discharge pump and MVR compressor. The utility model develops and develops the MVR forced circulation evaporator by combining the advanced process of domestic and foreign evaporation concentrators aiming at the defects of high energy consumption and low steam utilization rate in the traditional process. By skillfully and effectively combining an evaporation concentration technology and a Mechanical Vapor Recompression (MVR) technology, heat energy of each part in the system is fully utilized, so that the full heat exchange of steam and materials reaches heat balance, and the whole system is stable and stable in temperature and easy to control.

Description

MVR forced circulation evaporator

Technical Field

The utility model belongs to the technical field of evaporation and concentration equipment, and particularly relates to an MVR forced circulation evaporator.

Background

In recent years, as the demand of human beings on energy sources is getting larger and larger, the energy supply becomes a bottleneck problem, and energy conservation and emission reduction become the basic national policy of China. The MVR evaporator (mechanical vapor recovery) is a technology for reusing the energy of the secondary steam generated by itself, thereby reducing the demand for external energy. The secondary steam is compressed by the compressor, the pressure and temperature are raised, the enthalpy is increased, and the secondary steam is sent to the heating chamber of the evaporator to be used as heating steam, namely, generating steam, so that the feed liquid is kept in an evaporation state, and the heating steam transfers the heat to the material to be condensed into water. Therefore, the steam which is originally discarded is fully utilized, the latent heat is recovered, and the heat efficiency is improved. However, the existing MVR evaporator equipment has generally low thermal efficiency and low utilization rate of secondary steam and system heat energy, and the existing MVR evaporator equipment depends on stable steam supply, once steam fluctuation can affect the whole evaporation and concentration process, so that the production process has large fluctuation and even abnormality.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a MVR forced circulation evaporator.

In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: a TVR steam ejector comprises an evaporator, a separator, a condensed water tank, a first heat exchanger, a second heat exchanger, a feeding pump, a condensed water pump, a circulating discharge pump and an MVR compressor;

the evaporator is communicated with the separator through a pipeline, a first feed inlet of the evaporator is communicated with a cold material outlet of the second heat exchanger through a pipeline, a second feed inlet of the evaporator is communicated with an outlet of the circulating discharge pump through a pipeline, a discharge outlet of the evaporator is communicated with an inlet of the circulating discharge pump through a pipeline, a first steam inlet of the evaporator is connected with a steam pipeline, a second steam inlet of the evaporator is connected with an outlet of the MVR compressor through a pipeline, and a condensed water outlet of the evaporator is communicated with a condensed water tank through a pipeline;

an outlet of the separator is communicated with an inlet of the circulating discharge pump through a pipeline, and a steam outlet of the separator is communicated with an inlet of the MVR compressor through a pipeline;

the outlet of the condensed water tank is communicated with the inlet of the condensed water pump through a pipeline; a cold material inlet of the first heat exchanger is communicated with an outlet of the feeding pump through a pipeline, a cold material outlet of the first heat exchanger is communicated with a cold material inlet of the second heat exchanger through a pipeline, a hot material inlet of the first heat exchanger is communicated with an outlet of the condensate water pump through a pipeline, and a hot material outlet of the first heat exchanger is communicated with a condensate water pipeline; a hot material inlet of the second heat exchanger is communicated with an outlet of the circulating discharge pump through a pipeline, and a hot material outlet of the second heat exchanger is communicated with a discharge pipeline; and the inlet of the feeding pump is connected with a feeding pipeline.

The preferable technical scheme is as follows: the pipeline is provided with a valve.

Due to the application of the technical scheme, the utility model has the beneficial effects that:

the utility model develops and develops the MVR forced circulation evaporator by combining the advanced process of domestic and foreign evaporation concentrators aiming at the defects of high energy consumption and low steam utilization rate in the traditional process. By skillfully and effectively combining an evaporation concentration technology and a Mechanical Vapor Recompression (MVR) technology, heat energy of each part in the system is fully utilized, so that the heat exchange between the vapor and the material is fully realized to achieve heat balance, the temperature of the whole system is stable, stable and easy to control, the utilization rate of the vapor is effectively improved, the energy consumption is reduced, and the cost is saved; on the other hand, the temperature of the whole system is stable, the evaporation is mild, and the product loss is reduced. The utility model has the advantages of high thermal efficiency, energy saving, low power consumption, low operation cost, wide material application range, continuous and intermittent discharging, low-temperature evaporation, no material denaturation and wide application prospect.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Description of the reference numerals: 1. an evaporator; 2. a separator; 3. a condensate tank; 4. a first heat exchanger; 5. a second heat exchanger; 6. a feed pump; 7. a condensate pump; 8. a circulating discharge pump; 9. MVR compressor.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the products of the present invention are usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an MVR forced circulation evaporator is characterized in that: the system comprises an evaporator 1, a separator 2, a condensed water tank 3, a first heat exchanger 4, a second heat exchanger 5, a feeding pump 6, a condensed water pump 7, a circulating discharge pump 8 and an MVR compressor 9;

the evaporator 1 is communicated with the separator 2 through a pipeline, a first feed inlet of the evaporator 1 is communicated with a cold material outlet of the second heat exchanger 2 through a pipeline, a second feed inlet of the evaporator 1 is communicated with an outlet of the circulating discharge pump 8 through a pipeline, a discharge outlet of the evaporator 1 is communicated with an inlet of the circulating discharge pump 8 through a pipeline, a first steam inlet of the evaporator 1 is connected with a steam pipeline, a second steam inlet of the evaporator 1 is connected with an outlet of the MVR compressor 9 through a pipeline, and a condensed water outlet of the evaporator 1 is communicated with the condensed water tank 3 through a pipeline;

an outlet of the separator 2 is communicated with an inlet of a circulating discharge pump 8 through a pipeline, and a steam outlet of the separator 2 is communicated with an inlet of an MVR compressor 9 through a pipeline;

the outlet of the condensed water tank 3 is communicated with the inlet of a condensed water pump 7 through a pipeline; a cold material inlet of the first heat exchanger 4 is communicated with an outlet of the feeding pump 6 through a pipeline, a cold material outlet of the first heat exchanger 4 is communicated with a cold material inlet of the second heat exchanger 5 through a pipeline, a hot material inlet of the first heat exchanger 4 is communicated with an outlet of the condensate pump 7 through a pipeline, and a hot material outlet of the first heat exchanger 4 is communicated with a condensate pipeline; a hot material inlet of the second heat exchanger 5 is communicated with an outlet of the circulating discharge pump 8 through a pipeline, and a hot material outlet of the second heat exchanger 5 is communicated with a discharge pipeline; the inlet of the feed pump 6 is connected with a feed pipeline.

The pipeline connected between the devices is controlled by a valve.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. An MVR forced circulation evaporator is characterized in that: comprises an evaporator (1), a separator (2), a condensed water tank (3), a first heat exchanger (4), a second heat exchanger (5), a feeding pump (6), a condensed water pump (7), a circulating discharge pump (8) and an MVR compressor (9);

the evaporator (1) is communicated with the separator (2) through a pipeline, a first feeding hole of the evaporator (1) is communicated with a cold material outlet of the second heat exchanger (5) through a pipeline, a second feeding hole of the evaporator (1) is communicated with an outlet of the circulating discharge pump (8) through a pipeline, a discharging hole of the evaporator (1) is communicated with an inlet of the circulating discharge pump (8) through a pipeline, a first steam inlet of the evaporator (1) is connected with a steam pipeline, a second steam inlet of the evaporator (1) is connected with an outlet of the MVR compressor (9) through a pipeline, and a condensed water outlet of the evaporator (1) is communicated with the condensed water tank (3) through a pipeline;

an outlet of the separator (2) is communicated with an inlet of the circulating discharge pump (8) through a pipeline, and a steam outlet of the separator (2) is communicated with an inlet of the MVR compressor (9) through a pipeline;

the outlet of the condensed water tank (3) is communicated with the inlet of a condensed water pump (7) through a pipeline; a cold material inlet of the first heat exchanger (4) is communicated with an outlet of the feed pump (6) through a pipeline, a cold material outlet of the first heat exchanger (4) is communicated with a cold material inlet of the second heat exchanger (5) through a pipeline, a hot material inlet of the first heat exchanger (4) is communicated with an outlet of the condensate pump (7) through a pipeline, and a hot material outlet of the first heat exchanger (4) is communicated with a condensate water pipeline; a hot material inlet of the second heat exchanger (5) is communicated with an outlet of the circulating discharge pump (8) through a pipeline, and a hot material outlet of the second heat exchanger (5) is communicated with a discharge pipeline; the inlet of the feeding pump (6) is connected with a feeding pipeline.

2. The MVR forced circulation evaporator of claim 1, wherein: the pipeline is provided with a valve.