CN208626644U - A kind of falling film evaporator - Google Patents
A kind of falling film evaporator Download PDFInfo
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- CN208626644U CN208626644U CN201821140881.7U CN201821140881U CN208626644U CN 208626644 U CN208626644 U CN 208626644U CN 201821140881 U CN201821140881 U CN 201821140881U CN 208626644 U CN208626644 U CN 208626644U
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- tube box
- falling film
- shell
- cylinder
- film evaporator
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Abstract
The utility model discloses a kind of falling film evaporators, including sequentially connected skirt, lower tube box, shell-side cylinder and upper tube box, the lower tube box bottom is provided with discharge nozzle, down tube upper box part side is provided with secondary steam outlet, the shell-side cylinder both ends are provided with tube sheet, several heat exchanger tubes are provided between tube sheet, cylinder enlarging section is provided among the shell-side cylinder, cylinder enlarging section side is provided with the direct import of steam, its other side is correspondingly arranged on secondary steam import, its underpart other side is provided with and concora crush mouth, shell-side cylinder top side is provided with the second not condensing mouth, the upper tube box top center is provided with recycle feed mouth, preheating part is correspondingly provided on the inside of recycle feed mouth, recycle feed mouth lower end is provided with hemispherical spray head, the upper tube box bottom is provided with cloth liquid disk.Heat exchanger tube is made of titanium material, is provided with preheating part, structure is simple, improves evaporation efficiency.
Description
Technical field
The utility model belongs to evaporation heating equipment technical field, and in particular to a kind of falling film evaporator.
Background technique
Falling film evaporator is that feed liquid is added from falling film evaporator upper tube box, through liquid distribution and film formation device, is uniformly divided
It is fitted in each heat exchanger tube, and is flowed down along heat transfer tube wall in uniformly membranaceous.During flowing down, vapour is heated by shell side heat medium
Change, the steam and liquid phase of generation enter the separation chamber of evaporator jointly, and for vapour-liquid through being sufficiently separated, steam enters condenser condensation
(single-action operation) or enter lower 1st effective evaporator as heat medium, to realize that multiple-effect operates, liquid phase is then discharged by separation chamber,
It is widely used in the concentration and liquid waste processing of the fields such as medicine, food, chemical industry, environmental protection thermal sensitivity feed liquid.Existing falling film evaporation
Structure is complicated for device, and evaporation film-formation result is lower, and working efficiency is low.
Utility model content
The utility model solves the deficiencies in the prior art, provides a kind of heat exchanger tube and is made using titanium material, preheating is arranged
The falling film evaporator in portion, structure is simple, improves evaporation efficiency.
The technical scheme adopted by the utility model is a kind of falling film evaporator, including sequentially connected skirt, down tube
Case, shell-side cylinder and upper tube box, the lower tube box bottom are provided with discharge nozzle, and down tube upper box part side is provided with secondary
Steam (vapor) outlet, the shell-side cylinder both ends are provided with tube sheet, and several heat exchanger tubes are provided between tube sheet, and the heat exchanger tube uses
Titanium material is made, and cylinder enlarging section is provided among the shell-side cylinder, it is direct that cylinder enlarging section side is provided with steam
Import, the other side are correspondingly arranged on secondary steam import, shell-side cylinder lower part side interval first not condensing mouth with it is cold
Condensate outlet, its underpart other side, which is provided with, is provided with the second not condensing mouth, institute with concora crush mouth, shell-side cylinder top side
It states upper tube box top center and is provided with recycle feed mouth, be correspondingly provided with preheating part, the recycle feed mouth on the inside of recycle feed mouth
Lower end is provided with hemispherical spray head, and the upper tube box bottom is provided with cloth liquid disk.
Preferably, electric heater unit is provided in the preheating part.
It is furthermore preferred that down tube upper box part side is provided with first liquid level gauge, down tube lower box part side is provided with
Second liquid level gauge.
Even more preferably, the lower tube box front end face is provided with observation panel.
Even more preferably, down tube lower box part side place opposite with second liquid level gauge is provided with thermometer.
Even more preferably, cylinder enlarging section side is provided with pressure gauge, and it is direct that the pressure gauge is located at steam
Above import.
Even more preferably, the shell-side cylinder and upper tube box are bolted.
Even more preferably, side is provided with service ports in the middle part of the skirt.
Even more preferably, lifting lug is provided at the top of the upper tube box.
Even more preferably, the discharge nozzle is L-shaped structure, and one end extends in lower tube box, and the other end is from skirt
Seat one side wall is stretched out.
Compared to the prior art, the utility model has the advantages that a kind of falling film evaporator, including sequentially connected
Skirt, lower tube box, shell-side cylinder and upper tube box, heat exchanger tube are made of titanium material, and titanium material is corrosion-resistant and light-weight, heat exchange
The longer life expectancy that pipe can be used, recycle feed mouth medial surface are provided with preheating part, and preheating part is provided with electric heater unit, feed liquid
It is to be added from the recycle feed mouth of falling film evaporator, hemispherical spray head is entered after preheating part preheats, is then sprayed by hemispherical
Head sprays into upper tube box, declines under the effect of gravity along pipe wall of heat exchange pipe film-like, and evaporate enrichment in the process, in its bottom
Concentrate is obtained, due to having already passed through preheating, the residence time is short in heat exchanger tube, is not easy to cause material deterioration, is suitable for processing heat
Quick property material.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is recycle feed mouth partial schematic diagram.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of falling film evaporator, refering to fig. 1, Fig. 2, including sequentially connected skirt 1, lower tube box 2, shell-side cylinder 3 and
Upper tube box 4,2 bottom of lower tube box are provided with discharge nozzle 21, and the 2 top side of lower tube box is provided with secondary steam outlet
22,3 both ends of shell-side cylinder are provided with tube sheet 31, and several heat exchanger tubes 32, the heat exchanger tube 32 are provided between tube sheet 31
It is made of titanium material, titanium material is corrosion-resistant and light-weight, and it is long that heat exchanger tube can be used the service life, sets among the shell-side cylinder 3
It is equipped with cylinder enlarging section 33,33 side of cylinder enlarging section is provided with the direct import 331 of steam, and the other side is correspondingly arranged on
Secondary steam import 332, the 3 lower part side interval first of shell-side cylinder not condensing mouth 36 and condensate outlet 34, its underpart
The other side, which is provided with, is provided with the second not condensing mouth 37, the upper tube box 4 with concora crush mouth 35, the 3 top side of shell-side cylinder
Top center is provided with recycle feed mouth 41, and preheating part 42, the recycle feed mouth 41 are correspondingly provided on the inside of recycle feed mouth 41
Lower end is provided with hemispherical spray head 43, and feed liquid is added from the recycle feed mouth 41 of falling film evaporator, preheats by preheating part 42
Afterwards enter hemispherical spray head 43, then by hemispherical spray head 43 spray into upper tube box 4, under the effect of gravity along 32 tube wall of heat exchanger tube at
Membranaceous decline, and enrichment is evaporated in the process, concentrate is obtained in its bottom, due to having already passed through preheating, in heat exchanger tube 32
The middle residence time is short, is not easy to cause material deterioration, is suitable for processing heat sensitive material, 4 bottom of upper tube box is provided with cloth liquid disk
44, it is uniformly distributed liquid in upper tube box 4 into heat exchanger tube.It is provided with electric heater unit in the preheating part 42, for heating
Preheating part.The 2 top side of lower tube box is provided with first liquid level gauge 23, and the 2 lower part side of lower tube box is provided with the second liquid
Position meter 24, for detect observation lower tube box 2 in feed liquid number.2 front end face of lower tube box is provided with observation panel 25, is used to
Observe the operating condition in lower tube box 2.The 2 lower part side of lower tube box and the opposite place of second liquid level gauge 24 are provided with thermometer
26, for detecting the temperature in lower tube box 2.33 side of cylinder enlarging section is provided with pressure gauge 333, the pressure gauge 333
Above the direct import 331 of steam, for detecting the pressure in shell-side cylinder 3.The shell-side cylinder 3 and upper tube box 4 pass through
It is bolted.The 1 middle part side of skirt is provided with service ports 11, and maintenance personal is facilitated to enter work.4 top of upper tube box
It is provided with lifting lug 45, is easily installed handling falling film evaporator.The discharge nozzle 21 is L-shaped structure, and one end extends to lower tube box 2
Interior, the other end is stretched out from 1 one side wall of skirt.
In use, steam enters falling film evaporator by the direct import 331 of steam and secondary steam import 332, heat pipe is exchanged
32 are heated, and are then flowed out by the condensate outlet 34 that 3 lower part of shell-side cylinder is arranged, feed liquid is the circulation from falling film evaporator
Feed inlet 41 is added, and enters hemispherical spray head 43 after the preheating of preheating part 42, then sprays into upper tube box by hemispherical spray head 43
4, decline under the effect of gravity along 32 tube wall film-like of heat exchanger tube, and evaporate enrichment in the process, is concentrated in its bottom
Liquid, due to having already passed through preheating, the residence time is short in heat exchanger tube 32, material deterioration is not easy to cause, finally by 2 bottom of lower tube box
Portion is provided with the outflow of discharge nozzle 21.
Above-described embodiment, the only preferred embodiment of the utility model not are used to limit the implementation model of the utility model
It encloses, therefore all equivalent variationss done with content described in the utility model claims, the utility model right should all be included in and wanted
Within the scope of asking.
Claims (10)
1. a kind of falling film evaporator, which is characterized in that including sequentially connected skirt (1), lower tube box (2), shell-side cylinder (3) with
And upper tube box (4), lower tube box (2) bottom are provided with discharge nozzle (21), lower tube box (2) the top side is provided with secondary
Steam (vapor) outlet (22), shell-side cylinder (3) both ends are provided with tube sheet (31), and tube sheet is provided with several heat exchanger tubes between (31)
(32), the heat exchanger tube (32) is made of titanium material, is provided with cylinder enlarging section (33), institute among the shell-side cylinder (3)
It states cylinder enlarging section (33) side and is provided with the direct import of steam (331), the other side is correspondingly arranged on secondary steam import
(332), shell-side cylinder (3) the lower part side interval first not condensing mouth (36) and condensate outlet (34), its underpart is another
Side, which is provided with, is provided with the second not condensing mouth (37), the upper tube box with concora crush mouth (35), shell-side cylinder (3) the top side
(4) top center is provided with recycle feed mouth (41), is correspondingly provided with preheating part (42), the circulation on the inside of recycle feed mouth (41)
Feed inlet (41) lower end is provided with hemispherical spray head (43), and upper tube box (4) bottom is provided with cloth liquid disk (44).
2. a kind of falling film evaporator as described in claim 1, which is characterized in that be provided with electric heating in the preheating part (42)
Device.
3. a kind of falling film evaporator as claimed in claim 2, which is characterized in that lower tube box (2) the top side is provided with
First liquid level gauge (23), lower tube box (2) the lower part side are provided with second liquid level gauge (24).
4. a kind of falling film evaporator as claimed in claim 3, which is characterized in that lower tube box (2) front end face is provided with sight
Cha Kou (25).
5. a kind of falling film evaporator as claimed in claim 4, which is characterized in that lower tube box (2) the lower part side and second
Liquidometer (24) is provided with thermometer (26) with respect to place.
6. a kind of falling film evaporator as claimed in claim 5, which is characterized in that cylinder enlarging section (33) side is provided with
Pressure gauge (333), the pressure gauge (333) are located above the direct import of steam (331).
7. a kind of falling film evaporator as claimed in claim 6, which is characterized in that the shell-side cylinder (3) and upper tube box (4) are logical
It crosses and is bolted.
8. a kind of falling film evaporator as claimed in claim 7, which is characterized in that side is provided with dimension in the middle part of the skirt (1)
Repair mouth (11).
9. a kind of falling film evaporator as claimed in claim 8, which is characterized in that be provided with lifting lug at the top of the upper tube box (4)
(45)。
10. a kind of falling film evaporator as claimed in claim 9, which is characterized in that the discharge nozzle (21) is L-shaped structure,
One end extends in lower tube box (2), and the other end is stretched out from skirt (1) one side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821140881.7U CN208626644U (en) | 2018-07-18 | 2018-07-18 | A kind of falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821140881.7U CN208626644U (en) | 2018-07-18 | 2018-07-18 | A kind of falling film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208626644U true CN208626644U (en) | 2019-03-22 |
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ID=65739290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821140881.7U Active CN208626644U (en) | 2018-07-18 | 2018-07-18 | A kind of falling film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208626644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975836A (en) * | 2021-10-29 | 2022-01-28 | 阜阳安固锅炉压力容器制造有限公司 | Falling film evaporator |
-
2018
- 2018-07-18 CN CN201821140881.7U patent/CN208626644U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975836A (en) * | 2021-10-29 | 2022-01-28 | 阜阳安固锅炉压力容器制造有限公司 | Falling film evaporator |
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