CN211752568U - Horizontal falling film evaporation concentration device of MVR - Google Patents

Horizontal falling film evaporation concentration device of MVR Download PDF

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Publication number
CN211752568U
CN211752568U CN202020474902.XU CN202020474902U CN211752568U CN 211752568 U CN211752568 U CN 211752568U CN 202020474902 U CN202020474902 U CN 202020474902U CN 211752568 U CN211752568 U CN 211752568U
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evaporation chamber
effect
pump
heat exchanger
chamber
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陈学坤
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Deyang Huayuan Environmental Protection And Energy Saving Technology Co ltd
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Deyang Huayuan Environmental Protection And Energy Saving Technology Co ltd
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Abstract

The utility model discloses a MVR violently manages falling liquid film evaporative concentration device, including the evaporation plant main part, the evaporation plant main part is including an effect evaporating chamber, two effect evaporating chambers and the triple effect evaporating chamber that level set gradually, be equipped with spray set directly over the condenser pipe, one side of one effect evaporating chamber, two effect evaporating chambers and triple effect evaporating chambers is equipped with first material transferring pump, second material transferring pump and discharge pump respectively, one side of two effect evaporating chambers is equipped with the condensate tank that is used for compiling each effect comdenstion water, the both ends of condensate tank one side are equipped with first heat exchanger and second heat exchanger respectively, feed pump access raw material water is passed through to one side of first heat exchanger, second heat exchanger's one end is connected with the condensate tank through the condensate pump, and the other end is connected with one effect evaporating chamber through the heater. The MVR horizontal tube falling film evaporation concentration device has the advantages of compact structure and low energy consumption.

Description

Horizontal falling film evaporation concentration device of MVR
Technical Field
The utility model belongs to the technical field of evaporative concentration, concretely relates to MVR violently manages falling liquid film evaporative concentration device.
Background
The MVR is a short term for a mechanical vapor recompression (mechanical vapor recompression) technology, and is a vapor heat source for raising low-grade vapor into high-grade vapor by mechanical work of a compressor by using secondary vapor and energy thereof generated by an evaporation system. The circulation provides heat energy for the evaporation system, thereby reducing the requirement on external energy. At present, a vertical tube falling film evaporation device is mostly adopted in China, raw material solution enters from the top, enters a heating tube after being split on a distributor, is subjected to heat exchange evaporation with steam on the outer wall of the heating tube, stock solution flows down from the heating tube and enters a steam-liquid separation chamber, secondary steam is discharged, and concentrated solution can be discharged or circularly concentrated. The energy in the process comes from the heating of raw steam and a heater, condensed water can be reheated into steam for use or collected as a finished product, the overall structure is simpler, but the shape is larger, only heating pipes (heat exchange pipes) are always higher than 10 meters, the material consumption of the whole product is more, the price is high, the occupied area of the installation is large, the steam is required to be produced due to input, the secondary utilization of the energy is less, the energy consumption is high, and the cost of the produced product is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a MVR violently manages falling liquid film evaporation concentration device to solve the problem that current standpipe falling liquid film evaporation device area is big, production power consumption is high.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a horizontal falling liquid film evaporation enrichment facility of MVR, includes the evaporation plant main part, the evaporation plant main part is including one effect evaporating chamber, two effect evaporating chambers and the triple effect evaporating chambers that the level set up in proper order, the inside of one effect evaporating chamber, two effect evaporating chambers and triple effect evaporating chambers all is equipped with a plurality of condenser pipes, be equipped with spray set directly over the condenser pipe, one side of one effect evaporating chamber, two effect evaporating chambers and triple effect evaporating chambers is equipped with first material transferring pump, second material transferring pump and ejection of compact pump respectively, one side of two effect evaporating chambers is equipped with the condensate tank that is used for compiling each effect comdenstion water, the both ends of condensate tank one side are equipped with first heat exchanger and second heat exchanger respectively, feed pump access raw materials water is passed through to one side of first heat exchanger, the one end of second heat exchanger is connected with the condensate tank through the condensate pump, and the other end is connected with one effect evaporating chamber through the heater, and a vacuum pump and a vapor compressor are arranged on the other side of the evaporation device main body.
Preferably, the interiors of the primary-effect evaporation chamber, the secondary-effect evaporation chamber and the tertiary-effect evaporation chamber are pumped to negative pressure by a vacuum pump.
Preferably, the single-effect evaporation chamber and the triple-effect evaporation chamber are connected through a vapor compressor.
Preferably, a steam flow through pipe connected with a condensing pipe in the secondary-effect evaporation chamber is arranged in the primary-effect evaporation chamber, the first material transferring pump is connected with a spraying device in the secondary-effect evaporation chamber through a pipeline, and the second material transferring pump is connected with the spraying device in the tertiary-effect evaporation chamber through a pipeline.
Preferably, the discharge pump connects the triple-effect evaporation chamber and the first heat exchanger through a pipeline.
The utility model discloses a technological effect and advantage: the MVR horizontal tube falling film evaporation concentration device has the advantages of compact structure and low energy consumption, and can evaporate at a lower temperature due to the action of negative pressure, so that the concentration effect is achieved without damaging active ingredients in a concentrated solution in the industries of food, medicine and the like, and the produced product has better quality;
the vapor compression part and the low-temperature evaporation part of the device (through negative pressure pumping) can be connected to other evaporation devices, and the device can be used in series in multiple effects according to needs, has wide application prospect and is worthy of popularization.
Drawings
Fig. 1 is a structural sectional view of the present invention.
In the figure: 100-an evaporation device main body, 101-a first-effect evaporation chamber, 102-a second-effect evaporation chamber, 103-a third-effect evaporation chamber, 4-a first heat exchanger, 5-a second heat exchanger, 6-a feeding pump, 7-a heater, 8-a spraying device, 9-a condensation pipe, 10-a first material transferring pump, 11-a second material transferring pump, 12-a discharging pump, 13-a condensation water tank, 14-a condensation water pump, 15-a vacuum pump and 16-a steam compressor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a MVR violently manage falling liquid film evaporation concentration device as shown in the figure, including evaporation plant main part 100, evaporation plant main part 100 includes one in proper order the level set up imitates evaporating chamber 101, two imitates evaporating chamber 102 and three imitate evaporating chamber 103, the inside of one imitate evaporating chamber 101, two imitate evaporating chamber 102 and three imitate evaporating chamber 103 all is equipped with a plurality of condenser pipes 9, be equipped with spray set 8 directly over the condenser pipe 9, one side of one imitate evaporating chamber 101, two imitate evaporating chamber 102 and three imitate evaporating chamber 103 is equipped with first material transferring pump 10, second material transferring pump 11 and ejection of compact pump 12 respectively, one side of two imitate evaporating chamber 2 is equipped with condensate tank 13 that is used for compiling each effect condensate water, the both ends of condensate tank 13 one side are equipped with first heat exchanger 4 and second heat exchanger 5 respectively, one side of first heat exchanger 4 inserts raw materials water through charge pump 6, one end of the second heat exchanger 5 is connected with a condensed water tank 13 through a condensed water pump 14, and the other end is connected with a one-effect evaporation chamber 101 through a heater 7, and the other side of the evaporation device main body 100 is provided with a vacuum pump 15 and a vapor compressor 16.
In addition, the interiors of the first-effect evaporation chamber 101, the second-effect evaporation chamber 102 and the third-effect evaporation chamber 103 are pumped to negative pressure through the vacuum pump 15, so that evaporation at a lower temperature is facilitated, effective ingredients in concentrated solution are not damaged in industries such as food and medicine, a concentration effect is achieved, and produced products have better quality.
The first-effect evaporation chamber 101 and the third-effect evaporation chamber 103 are connected through the vapor compressor 16, so that the vapor which is naturally flashed in the third-effect evaporation chamber 103 is compressed and heated by the vapor compressor 16 and then enters the first-effect evaporation chamber 101 for condensation and evaporation of raw material water, the energy utilization rate is improved, and the energy is greatly saved. A steam circulation pipe connected with a condensation pipe 9 in the secondary-effect evaporation chamber 102 is arranged in the primary-effect evaporation chamber 101, the first material transfer pump 10 is connected with a spraying device 8 in the secondary-effect evaporation chamber 102 through a pipeline, and the second material transfer pump 11 is connected with the spraying device 8 in the tertiary-effect evaporation chamber 103 through a pipeline, so that secondary steam in the primary-effect evaporation chamber 101 enters the condensation pipe 9 in the secondary-effect evaporation chamber 102 through a steam circulation pipe, and concentrated solution (unevaporated raw material water) in the primary-effect evaporation chamber 101 is pumped into the spraying device 8 on the secondary-effect evaporation chamber 102 through the material transfer pump 1 to be evaporated and condensed; the concentrated solution (raw material water which is not evaporated) in the two-effect evaporation chamber 102 can enter the spraying device 8 in the three-effect evaporation chamber 103 through the material transfer pump 2 and then enter the three-effect evaporation chamber 103 for evaporation and condensation. The discharge pump 12 connects the triple-effect evaporation chamber 103 with the first heat exchanger 4 through a pipeline, which is beneficial to discharging the final concentrated solution after the final concentrated solution is pumped out by the discharge pump 12 and exchanges heat with the first heat exchanger 4.
In addition, the steam of natural flash evaporation generated by the triple-effect evaporation chamber 103 is compressed by the steam compressor 16 and then heated, the steam after compression and heating enters into a single effect to evaporate the raw material solution, the heat balance of the whole system is basically achieved after the operation for a certain time, and the heating tank is only used as a small amount of supplementary heat source, so that the energy is further saved.
The working principle is as follows: when the MVR horizontal tube falling film evaporation concentration device is used, firstly, a vacuum pump 15 is used for pumping negative pressure in a first-effect evaporation chamber 101, a second-effect evaporation chamber 102 and a third-effect evaporation chamber 103 to meet the process requirement, then raw material water (in a normal temperature state) enters a first heat exchanger 4 and a second heat exchanger 5 to respectively exchange heat with concentrated liquid and condensed water, then the raw material water is uniformly sprayed on a condensation pipe 9 in the first-effect evaporation chamber 101 through a spraying device 8 to generate steam, then primary secondary steam is input into the condensation pipe 9 in the second-effect evaporation chamber 102, the primary concentrated liquid is pumped into the spraying device 8 in the second-effect evaporation chamber 102 through a first transfer pump 10, then the secondary concentrated liquid is pumped into the spraying device 8 in the third-effect evaporation chamber 103 through a second transfer pump 11, finally the final concentrated liquid is pumped out through a discharge pump 12 and exchanged with the first heat exchanger 4 and then discharged, naturally flashed steam in the third-effect evaporation chamber 103 is compressed and heated through a compressor 16 and then enters the first-effect evaporation chamber 101 to enter the steam pressure evaporation chamber 101 to be fed The raw water is condensed and evaporated, and circulated accordingly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. The utility model provides a horizontal falling film evaporation concentration device of MVR, includes evaporation plant main part (100), its characterized in that: the evaporation device comprises an evaporation chamber (100), a secondary evaporation chamber (102) and a tertiary evaporation chamber (103), wherein the evaporation chamber (101), the secondary evaporation chamber (102) and the tertiary evaporation chamber (103) are sequentially and horizontally arranged, a plurality of condensation pipes (9) are arranged inside the evaporation chamber (101), the secondary evaporation chamber (102) and the tertiary evaporation chamber (103), a spraying device (8) is arranged right above the condensation pipes (9), a first material transferring pump (10), a second material transferring pump (11) and a material discharging pump (12) are respectively arranged on one side of the evaporation chamber (101), the secondary evaporation chamber (102) and the tertiary evaporation chamber (103), a condensation water tank (13) for collecting each condensed water is arranged on one side of the secondary evaporation chamber (102), a first heat exchanger (4) and a second heat exchanger (5) are respectively arranged at two ends of one side of the condensation water tank (13), one side of the first heat exchanger (4) is connected with raw water through a feeding pump (6), one end of the second heat exchanger (5) is connected with a condensed water tank (13) through a condensed water pump (14), the other end of the second heat exchanger is connected with a one-effect evaporation chamber (101) through a heater (7), and a vacuum pump (15) and a vapor compressor (16) are arranged on the other side of the evaporation device main body (100).
2. The MVR horizontal tube falling film evaporation concentration device according to claim 1, wherein: the interiors of the primary-effect evaporation chamber (101), the secondary-effect evaporation chamber (102) and the tertiary-effect evaporation chamber (103) are all pumped to negative pressure through a vacuum pump (15).
3. The MVR horizontal tube falling film evaporation concentration device according to claim 1, wherein: the single-effect evaporation chamber (101) and the three-effect evaporation chamber (103) are connected through a vapor compressor (16).
4. The MVR horizontal tube falling film evaporation concentration device according to claim 1, wherein: a steam circulation pipe connected with a condensation pipe (9) in the secondary-effect evaporation chamber (102) is arranged in the primary-effect evaporation chamber (101), the first material transferring pump (10) is connected with a spraying device (8) in the secondary-effect evaporation chamber (102) through a pipeline, and the second material transferring pump (11) is connected with the spraying device (8) in the tertiary-effect evaporation chamber (103) through a pipeline.
5. The MVR horizontal tube falling film evaporation concentration device according to claim 1, wherein: the discharge pump (12) connects the triple-effect evaporation chamber (103) with the first heat exchanger (4) through a pipeline.
CN202020474902.XU 2020-04-03 2020-04-03 Horizontal falling film evaporation concentration device of MVR Active CN211752568U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020474902.XU CN211752568U (en) 2020-04-03 2020-04-03 Horizontal falling film evaporation concentration device of MVR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020474902.XU CN211752568U (en) 2020-04-03 2020-04-03 Horizontal falling film evaporation concentration device of MVR

Publications (1)

Publication Number Publication Date
CN211752568U true CN211752568U (en) 2020-10-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020474902.XU Active CN211752568U (en) 2020-04-03 2020-04-03 Horizontal falling film evaporation concentration device of MVR

Country Status (1)

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CN (1) CN211752568U (en)

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