CN208448671U - A kind of two-period form falling film evaporator equipment of secondary steam self-produced personal - Google Patents

Abstract

The utility model discloses a kind of two-period form falling film evaporator equipment of secondary steam self-produced personal, including sequentially connected upper tube box, first segment heating room, second segment heating room and separation chamber from top to bottom；First segment heating room is separated with second segment heating room sealing but its heat exchanger tube is directly connected to；Second segment heats room and is equipped with the second steam inlet and secondary steam outlet；High-temperature steam is accessed in one end of second steam inlet, and the other end is communicated to the second shell side；First segment heats room and is equipped with the first steam inlet；One end of first steam inlet is communicated to the first shell side, and the other end is communicated to secondary steam outlet；First segment heating room and second segment heating room are equipped with condensation-water drain.The secondary steam self-produced personal that the utility model generates evaporator reduces the secondary steam extra process cost of evaporator；Heating room is divided into two sections, achievees the effect that multi-effect evaporator, but equipment cost ratio is low using multi-effect evaporator, occupation area of equipment ratio is small using multi-effect evaporator.

Description

A kind of two-period form falling film evaporator equipment of secondary steam self-produced personal

Technical field

The utility model relates to a kind of falling film evaporators, and in particular to the two-period form to a kind of secondary steam self-produced personal drops Kestner long-tube evaporator equipment.

Background technique

Falling film evaporation is that feed liquid is added from falling film evaporator heating room upper tube box, uniform through liquid distribution and film formation device It is assigned in each heat exchanger tube, and is flowed down along heat transfer tube wall in uniformly membranaceous.During flowing down, feed liquid is by shell side heat medium Heating vaporization, the steam and liquid phase of generation enter the separation chamber of evaporator jointly, and through being sufficiently separated, secondary steam enters cold vapour-liquid Condenser condenses (single-action operation) or enters lower 1st effective evaporator as heat medium, to realize that multiple-effect operates, liquid phase is then by dividing It is discharged from room.Since solution is in membranaceous flowing in falling film evaporator, thus convective heat-transfer coefficient is greatly improved, and enables solution Once pass through the concentration for just reaching requirement in heating room.Have the advantage that: (1) residence time is very in evaporator for solution It is short, thus the evaporation especially suitable for heat sensitive material；(2) concentration of entire solution, always close to the concentration for completing liquid, this The effective temperature difference of kind evaporator is larger.

Falling film evaporator is suitable for pharmacy, glucose, starch, chemical industry, xylose, citric acid, ammonium sulfate, Biochemical Engineering, ring Engineering, devil liquor recovery processing etc. are protected, is widely used.If but the directly condensation of the secondary steam of falling film evaporator will cause heat Waste, if needing more equipment and place if multi-effect evaporator.

Utility model content

The utility model provides a kind of two-period form downward film evaporator equipment of secondary steam self-produced personal, can be realized Secondary steam heat self-produced personal, while not having to be further added by multi-effect evaporator again, reduce equipment and operation totle drilling cost.

In order to solve the above technical problems, the technology employed by the present utility model is

A kind of two-period form falling film evaporator equipment of secondary steam self-produced personal, including sequentially connected upper tube from top to bottom Case, first segment heating room, second segment heating room and separation chamber；The top of upper tube box is equipped with feed inlet, and the bottom of separation chamber is equipped with Discharge port；

First segment heats room and separates with second segment heating room sealing；First heat exchanger tube of first segment heating room adds with second segment Second heat exchanger tube in hot cell is connected to；

Second segment heats room and is equipped with the second steam inlet and secondary steam outlet；High temperature is accessed in one end of second steam inlet Steam, the other end are communicated to the second shell side of second segment heating room；

First segment heats room and is equipped with the first steam inlet；One end of first steam inlet is communicated to the of first segment heating room One shell side, the other end are communicated to secondary steam by secondary steam pipeline and export；

First segment heating room and second segment heating room are equipped with condensation-water drain.

According to above scheme, the condensation-water drain of the first segment heating room and second segment heating room is respectively connected with automatic sparse Water installations；Automatic water draining device is also connected at the low spot of the secondary steam pipeline；Automatic water draining device is communicated to condensation Water reclamation system.

According to above scheme, the first segment heating room and second segment heating room are equipped with fixed gas exhaust outlet.

Further, the fixed gas exhaust outlet of the first segment heating room and second segment heating room is respectively connected with automatic exhaust Device；Automatic exhaust device is all connected to gas recovery system.

Compared with prior art, the utility model has the beneficial effects that

1) the secondary steam self-produced personal for being generated evaporator by simple structure, reduces the secondary steam of evaporator Need extra process bring cost；

2) heating room is divided into two sections, achievees the effect that multi-effect evaporator, but equipment cost ratio uses multi-effect evaporator Low, occupation area of equipment ratio is small using multi-effect evaporator；

3) secondary steam self-produced personal, condensed water all recycle, and reduce the wasting of resources.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is material flow route schematic diagram when the utility model is run；

Fig. 3 is steam flow path line schematic diagram when the utility model is run.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing, the paraphrase of each label in figure Are as follows: 1- upper tube box, 11- feed inlet, 2- first segment heat room, the first heat exchanger tube of 21-, the first shell side of 22-, the first steam of 23- into Mouthful, the first condensation-water drain of 24-, 25- the first fixed gas exhaust outlet, the first manhole door of 26-, 3- second segment heating room, 31- second Heat exchanger tube, the second shell side of 32-, the second steam inlet of 33-, the second condensation-water drain of 34-, 35- the second fixed gas exhaust outlet, 36- Second manhole door, the separation chamber 4-, the outlet of 41- secondary steam, 42- discharge port, 5- secondary steam pipeline, 6- automatic water draining device, 7- automatic exhaust device.

As shown in Figure 1, the utility model includes upper tube box 1, first segment heating room 2, second segment heating room 3,4 and of separation chamber Secondary steam pipeline 5.1 upper end of upper tube box is equipped with feed inlet 11, and 1 lower end of upper tube box is connect with first segment heating room 2, and first segment adds First steam inlet 23 in hot cell 2 is connected with one end of secondary steam pipeline 5, and the lower end of first segment heating room 2 adds with second segment The connection of 3 upper end of hot cell, the lower end of second segment heater 3 are connect with the upper end of separation chamber 4, the secondary steam outlet 41 of separation chamber 4 It is connect with the other end of secondary steam pipeline 5, the lower end of separation chamber 4 is equipped with discharge port 42.

Upper tube box 1 and the place of docking of first segment heater 2 are equipped with the first heat exchange interface tube, except the first heat exchange interface tube Dense steel plate packing in shell side part is opened.First segment heat room 2 be equipped with the first steam inlet 23, one end of the first steam inlet 23 with One end of secondary steam pipeline 5 is connected, the first shell side 22 of the other end connection first segment heating room 2 of the first steam inlet 23. Second segment heats room 3 and is equipped with the second steam inlet 33, and high temperature of one end access of the second steam inlet 33 for heated material steams Vapour, the second shell side 32 of the other end connection second segment heating room 3 of the second steam inlet 33.The first of first segment heating room 2 is changed Heat pipe 21 is directly connected to the second heat exchanger tube 31 of second segment heating room 3.First segment heats room 2 and connect with second segment heating room 3 Place, the shell side part in addition to heat exchanger tube are opened with dense steel plate packing.Second segment heats the place of docking of room 3 and separation chamber 4, and there are the Two heat exchange interface tubes, second heat exchange interface tube except part dense steel plate packing opens.The benefit being arranged in this way is material circulation Heat exchanger tube do not interrupt, will not influence Flow of Goods and Materials, but heating room can be divided into two sections, first segment is added with secondary steam Heat, second segment are heated with high-temperature steam, make maximum heat exchange efficiency according to vapor (steam) temperature difference segmentally heating material.

An automatic water draining device 6 is equipped at the low spot of secondary steam pipeline 5.First segment heats room 2 and is equipped with the first condensation Water out 24, second segment heat room 3 and are equipped with the second condensation-water drain 34, the first condensation-water drain 24 and the second condensation-water drain 34 External automatic water draining device 6.The condensed water that automatic water draining device 6 is discharged, which all collects, connects condensation water recovery system.The One section of heating room 2 is equipped with the first fixed gas exhaust outlet 25, and second segment heats room 3 and is equipped with the second fixed gas exhaust outlet 35, there is first Fixed gas exhaust outlet 25 and the external automatic exhaust device 7 of the second fixed gas exhaust outlet 35, what automatic exhaust device 7 was discharged Fixed gas, which all collects, connects gas recovery system.The benefit being arranged in this way is condensation water recovery and use can be reduced resource wave Take；In addition fixed gas recycling is uniformly processed, and can generate pollution to avoid to environment.

The first segment heating room 2 of the present embodiment is equipped with the first manhole door 26, and second segment heats room 3 and is equipped with the second manhole door 36, manhole door can be used for the maintenance repair maintenance of evaporator.

When falling film evaporator is run, material flow route is as shown in Figure 2.Material is embodied as to enter by feed inlet 11 Then upper tube box 1 enters heat exchanger tube, sequential flow by the first heat exchange interface tube that upper tube box 1 and first segment heat 2 junction of room The first heat exchanger tube 21, the second heat exchanger tube 31 are crossed, the second heat exchanger tube of room 3 and 4 junction of separation chamber is then heated by second segment Interface enters separation chamber 4, is discharged finally by discharge port 42.

When falling film evaporator is run, steam flow path line is as shown in figure 3, be specifically divided into high-temperature steam and secondary steam two Road.

First is high-temperature steam route, and high-temperature steam enters the second of the second heating room 3 by the second steam inlet 33 Shell side 32, high-temperature steam exchanges heat in the second shell side 32 be condensed into condensed water after sequentially by the second condensation-water drain 34, automatic Steam trap connection 6 enters condensation water recovery system；Part fixed gas sequence passes through the second fixed gas exhaust outlet 35, automatic exhaust device 7 enter gas recovery system.

Article 2 is secondary steam route, and secondary steam comes out from secondary steam outlet 41, by secondary steam pipeline 5 Afterwards, the first shell side 22 of the first heating room 2 is entered by the first steam inlet 23, secondary steam exchanges heat condensation in the first shell side 22 At after condensed water sequentially by the first condensation-water drain 24, automatic water draining device 6 enter condensation water recovery system, part fixed gas Sequence enters gas recovery system by the first fixed gas exhaust outlet 25, automatic exhaust device 7.

The size specification of each component can determine that heat exchange amount needed for material can be according to material by the heat exchange amount needed for material Required enrichment calculates again after first calculating the water that needs evaporate.

The present embodiment can heat two sections of room separation by falling film evaporator so that secondary steam be able to it is simpler effectively Utilization, compare common falling film evaporator, it is more practical, energy saving.

Claims (4)

1. a kind of two-period form falling film evaporator equipment of secondary steam self-produced personal, it is characterised in that: including from top to bottom successively The upper tube box (1) of connection, first segment heating room (2), second segment heating room (3) and separation chamber (4)；Upper tube box is set at the top of (1) Have feed inlet (11), the bottom of separation chamber (4) is equipped with discharge port (42)；

First segment heats room (2) and separates with second segment heating room (3) sealing；First segment heats first heat exchanger tube (21) of room (2) It is connected to the second heat exchanger tube (31) of second segment heating room (3)；

Second segment heats room (3) and is equipped with the second steam inlet (33) and secondary steam outlet (41)；Second steam inlet (33) High-temperature steam is accessed in one end, and the other end is communicated to the second shell side (32) of second segment heating room (3)；

First segment heats room (2) and is equipped with the first steam inlet (23)；One end of first steam inlet (23) is communicated to first segment and adds First shell side (22) in hot cell (2), the other end are communicated to secondary steam outlet (41) by secondary steam pipeline (5)；

First segment heating room (2) and second segment heating room (3) are equipped with condensation-water drain.

2. a kind of two-period form falling film evaporator equipment of secondary steam self-produced personal according to claim 1, feature exist In: the condensation-water drain of first segment heating room (2) and second segment heating room (3) is respectively connected with automatic water draining device (6)；Institute It states and is also connected with automatic water draining device (6) at the low spot of secondary steam pipeline (5)；Automatic water draining device (6) is communicated to condensation Water reclamation system.

3. a kind of two-period form falling film evaporator equipment of secondary steam self-produced personal according to claim 1, feature exist In: first segment heating room (2) and second segment heating room (3) are equipped with fixed gas exhaust outlet.

4. a kind of two-period form falling film evaporator equipment of secondary steam self-produced personal according to claim 3, feature exist In: the fixed gas exhaust outlet of first segment heating room (2) and second segment heating room (3) is respectively connected with automatic exhaust device (7)； Automatic exhaust device (7) is all connected to gas recovery system.