CN206499888U - MVR plate type rising film evaporation concentration systems - Google Patents

Abstract

The utility model relates to an MVR plate type rising film evaporation and concentration system, comprising a gas-liquid separator, a plate type rising film evaporator, and a circulation pump, the gas-liquid two-phase outlet of the plate type rising film evaporator is connected with the gas-liquid separator, The bottom of the gas-liquid separator is connected to the inlet of the circulation pump, and the outlet of the circulation pump is connected to the plate type rising film evaporator; the condensed water outlet of the plate type rising film evaporator is connected to the condensed water tank, and the secondary The steam outlet is connected to the inlet of the steam compressor, and the outlet of the steam compressor is connected to the inlet of the plate-type rising film evaporator. The evaporative concentration system has compact structure and low energy consumption.

Description

MVR Plate Rising Film Evaporation Concentration System

technical field

The utility model relates to an MVR plate type rising film evaporation concentration system.

Background technique

The traditional rising film evaporation and concentration system uses a shell-and-tube evaporator, which results in a low heat transfer coefficient. In order to work better, a vapor compressor with a relatively large compression ratio is required, and the total energy consumption of the system is correspondingly high.

Contents of the invention

Aiming at the above problems, the utility model provides an MVR plate type rising film evaporation and concentration system, which has a compact structure and low energy consumption.

According to the technical solution of the present invention: an MVR plate type rising film evaporation and concentration system is characterized in that it includes a gas-liquid separator, a plate type rising film evaporator, a circulation pump, and the gas-liquid two-phase outlet of the plate type rising film evaporator It is connected with the gas-liquid separator, the bottom of the gas-liquid separator is connected with the inlet of the circulation pump, and the outlet of the circulation pump is connected with the plate type rising film evaporator; the condensed water outlet of the plate type rising film evaporator is connected with the condensed water tank , the secondary steam outlet of the gas-liquid separator is connected to the inlet of the steam compressor, and the outlet of the steam compressor is connected to the inlet of the plate-type rising film evaporator.

As a further improvement of the utility model, the water outlet of the condensed water tank is connected to a condensed water pump.

As a further improvement of the utility model, the discharge port at the bottom of the gas-liquid separator is connected to the discharge pump through a pipeline.

As a further improvement of the utility model, a raw material liquid inlet branch pipeline is arranged on the pipeline between the gas-liquid separator and the circulating pump.

As a further improvement of the utility model, the gas-liquid separator is connected with the plate type rising film evaporator through a gas-liquid two-phase outlet pipeline.

As a further improvement of the utility model, the plate rising film evaporator is provided with a first raw material liquid inlet, a second raw material liquid inlet, a first condensed water outlet, and a second condensed water outlet, and the first raw material liquid inlet, the second raw material liquid The two raw material liquid inlets are connected to the circulating pump through branch pipes, and the first condensate outlet and the second condensate outlet are connected to the inlet of the condensate tank through branch pipes.

The technical effect of the utility model is that: the product of the utility model couples the MVR and the plate-type rising-film evaporator, the distribution of the material on the heating surface of the plate-type rising-film evaporator is controlled, the flow speed is high, and the film-forming effect is good. Compared with Shell and tube evaporators have a much higher heat transfer coefficient. Therefore, the system has a compact structure and less residual material, and a steam compressor with a smaller compression ratio can be selected, and the total energy consumption of the system is also reduced accordingly.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

In Fig. 1, it includes a gas-liquid separator 1, a circulation pump 2, a plate type rising film evaporator 3, a discharge pump 4, a steam compressor 5, a condensed water tank 6, a condensed water pump 7, the first raw material liquid inlet 8, the second Raw material liquid inlet 9, first condensed water outlet 10, second condensed water outlet 11, etc.

As shown in Figure 1, the utility model is an MVR plate type rising film evaporation and concentration system, including a gas-liquid separator 1, a plate type rising film evaporator 3, and a circulation pump 2, and the gas-liquid two parts of the plate type rising film evaporator 3 The phase outlet is connected to the gas-liquid separator 1, the bottom of the gas-liquid separator 1 is connected to the inlet of the circulation pump 2, and the outlet of the circulation pump 2 is connected to the plate type rising film evaporator 3; the plate type rising film evaporator 3 The condensed water outlet is connected to the condensed water tank 6, the secondary steam outlet of the gas-liquid separator 1 is connected to the inlet of the steam compressor 5, and the outlet of the steam compressor 5 is connected to the air inlet of the plate type rising film evaporator 3.

The water outlet of the condensed water tank 6 is connected to the condensed water pump 7 .

The discharge port at the bottom of the gas-liquid separator 1 is connected to the discharge pump 4 through a pipeline.

The pipeline between the gas-liquid separator 1 and the circulation pump 2 is provided with a feedstock liquid inlet branch pipeline.

The gas-liquid separator 1 is connected with the plate type rising film evaporator 3 through a gas-liquid two-phase outlet pipeline.

The plate type rising film evaporator 3 is provided with a first raw material liquid inlet 8, a second raw material liquid inlet 9, a first condensed water outlet 10, and a second condensed water outlet 11, the first raw material liquid inlet 8, the second raw material liquid inlet 9 The two are connected to the circulation pump 2 through branch pipes, and the first condensed water outlet 10 and the second condensed water outlet 11 are connected to the inlet of the condensed water tank 6 through branch pipes.

The working process of the utility model is as follows: when the utility model MVR (mechanical vapor recompression technology) plate type rising film evaporation concentration system is working, the transmission direction of the material delivery channel is from bottom to top into the plate type rising film evaporator 3, and the steam The liquid two-phase enters the gas-liquid separator 1 from the upper outlet of the plate-type rising film evaporator 3 for separation, the concentrated liquid is drawn out from the lower part by the discharge pump 4, and the secondary steam rises into the steam compressor 5, and is sent to the plate-type rising film evaporator after being compressed 3 air inlets. The utility model adopts the mesh diversion to reduce the heat transfer dead zone and improve the heat transfer efficiency; the processing capacity is large and the evaporation efficiency is high.

Claims (6)

1. a kind of MVR plate type rising films evaporation concentration system, it is characterised in that：Including gas-liquid separator（1）, plate-type climbing film evaporator （3）, circulating pump（2）, the plate-type climbing film evaporator（3）Gas-liquid two-phase outlet and gas-liquid separator（1）It is connected, the gas Liquid/gas separator（1）Bottom and circulating pump（2）Import be connected, circulating pump（2）Outlet and plate-type climbing film evaporator（3）Phase Connection；Plate-type climbing film evaporator（3）Condensation-water drain connection condensate water pot（6）, gas-liquid separator（1）Indirect steam outlet Connect vapour compression machine（5）Import, vapour compression machine（5）Outlet connecting plate type climbing film evaporator（3）Air inlet.

2. MVR plate type rising films evaporation concentration system as claimed in claim 1, it is characterised in that：The condensate water pot（6）Go out The mouth of a river connects condensate pump（7）.

3. MVR plate type rising films evaporation concentration system as claimed in claim 1, it is characterised in that：The gas-liquid separator（1）Bottom The discharging opening in portion connects discharging pump by pipeline（4）.

4. MVR plate type rising films evaporation concentration system as claimed in claim 1, it is characterised in that：The gas-liquid separator（1）With Circulating pump（2）Between pipeline on set material liquid import lateral.

5. MVR plate type rising films evaporation concentration system as claimed in claim 1, it is characterised in that：The gas-liquid separator（1）With Plate-type climbing film evaporator（3）Between be connected by gas-liquid two-phase outlet conduit.

6. MVR plate type rising films evaporation concentration system as claimed in claim 1, it is characterised in that：The plate-type climbing film evaporator （3）The first material liquid import of upper setting（8）, the second material liquid import（9）, the first condensation-water drain（10）, the second condensed water goes out Mouthful（11）, the first material liquid import（8）, the second material liquid import（9）Both pass through lateral and circulating pump（2）Phase Even, the first condensation-water drain（10）, the second condensation-water drain（11）Pass through lateral and condensate water pot（6）Import be connected Connect.