CN207822541U - A kind of single tube evaporation test device - Google Patents
A kind of single tube evaporation test device Download PDFInfo
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- CN207822541U CN207822541U CN201721574353.8U CN201721574353U CN207822541U CN 207822541 U CN207822541 U CN 207822541U CN 201721574353 U CN201721574353 U CN 201721574353U CN 207822541 U CN207822541 U CN 207822541U
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- film evaporation
- falling
- condenser
- climbing
- test device
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Abstract
The utility model relates to a kind of single tube evaporation test device, including the raw water tank, raw water pump, preheating can, heating tube, climbing-film evaporation pipe, the glass that are linked in sequence regard cup, falling-film distributor, falling film evaporation pipe and water return tank.The glass is equipped with condensate liquid catch tray depending on being connected with condenser at the top of cup in the condenser；Central tube is equipped in the falling-film distributor, the central tube is connected to the falling film evaporation pipe and the condenser；The upper and lower ends of the climbing-film evaporation pipe are respectively provided with an observation and regard cup, and there are one observations to regard cup by the falling film evaporation Guan Shangshe.A kind of single tube evaporation test device has the advantages that design science, simple in structure, experiment teaching effect enhancement, experimental teaching function are more rich.
Description
Technical field
The utility model is related to a kind of Experiment of Principles of Chemical Engineering devices, and in particular to a kind of single tube evaporation test device.
Background technology
In the industry productions such as chemical industry, food, medicine, light industry, the gasification of solution, the concentration of weak solution, the steaming of organic matter
Hair, will be related to evaporation operation.There are many modes for evaporation, and also type is various for the equipment of evaporation, and diaphragm type evaporation is current state
One of inside and outside widely applied evaporating device.Therefore, it is to understand that diaphragm type evaporates and skillfully grasps the work original of thin film evaporator
Reason, one of the experiment that must have in the teaching for being relevant speciality.
In correlation teaching, student needs to learn the formation mechenism of climbing-film evaporation and falling film evaporation, conventional teaching experimental facilities
In often equipped with individual climbing film evaporator and falling film evaporator.Then, a kind of experimental provision how is designed, to realize synchronous learn
It practises and to compare two kinds of thin film evaporation formation mechenisms, teaching and experiment effect more preferable, just at people's problem to be solved.
To solve the above problems, a kind of single tube evaporation test device is now designed, to meet synchronous study and compare two kinds
Thin film evaporation formation mechenism, teaching and the better demand of experiment effect.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, a kind of single tube evaporation test device to be provided, to solve
It has determined and synchronous study and has compared two kinds of thin film evaporation formation mechenisms, teaching and the more preferable problem of experiment effect.
To achieve the goals above, technical solution used by the utility model is：
A kind of single tube evaporation test device, including the raw water tank, raw water pump, preheating can, heating tube, the liter film that are linked in sequence steam
Hair pipe, glass regard cup, falling-film distributor, falling film evaporation pipe and water return tank.The glass is depending on being connected with condenser, institute at the top of cup
It states and is equipped with condensate liquid catch tray in condenser；Central tube is equipped in the falling-film distributor, the central tube is connected to the falling liquid film
Evaporation tube and the condenser；The upper and lower ends of the climbing-film evaporation pipe are respectively provided with an observation and regard cup, the falling film evaporation pipe
On set there are one observation regard cup.
Based on above-mentioned, on the tube wall of the climbing-film evaporation pipe and it is equipped with heating tape on the tube wall of the falling film evaporation pipe.
Based on above-mentioned, the cooling water intake of the condenser is connect with tap water, and the condenser top is overflow
The mouth of a river is connect with trench, and the condensate liquid catch tray is connect with the raw water tank.
Further include multiple spinner flowmeters based on above-mentioned, the water outlet of the raw water pump, the water return tank water inlet and
The cooling water intake of the condenser is respectively provided with a spinner flowmeter.
Further include multiple thermometers based on above-mentioned, a temperature is respectively provided in the preheating can and in the water return tank
Degree is counted, and there are three the thermometers depending on being uniformly distributed between cup for the observation of two on the climbing-film evaporation pipe.
Further include multiple regulating valves and multiple switch valve, multiple spinner flowmeter downstreams are equipped with one based on above-mentioned
A regulating valve, the water outlet of the raw water tank and the water outlet of the water return tank are equipped with the switch valve；It further include pipeline
Air bleeding valve, the pipeline air bleeding valve are arranged in the preheating can upstream.
Advantageous effect：The utility model provides a kind of single tube evaporation test device, has substance compared to the prior art
Feature and progress, specifically, compared to common climbing film evaporator or falling film evaporator, the utility model in laboratory teaching
Include climbing-film evaporation stage and falling film evaporation stage, with synchronous study and climbing-film evaporation and the formation machine of falling film evaporation can be compared
Reason.Also, the utility model rises mem stage and sets there are two observing to regard cup, and it is different can more clearly to observe each climbing-film evaporation stage
The phenomenon that flow condition, and temperature can be controlled according to flow condition and then reach next climbing-film evaporation stage.In addition, this practicality
It is novel to be connected using climbing-film evaporation stage and falling film evaporation stage, and then before and after the falling film evaporation stage can be compared, i.e., the second effect
The front and back evaporation effect of evaporation.A kind of single tube evaporation test device has design science, simple in structure, experimental teaching effect
The advantage that fruit is promoted, experimental teaching function is more rich.
Description of the drawings
Fig. 1 is the surface structure schematic diagram of the utility model.
In figure：1 raw water tank；2 raw water pumps；3 preheating cans；4 heating tubes；5 climbing-film evaporation pipes；6 observations regard cup；7 condensers；8
Glass regards cup；9 condensate liquid catch trays；10 falling-film distributors；11 central tubes；12 falling film evaporation pipes；13 water return tanks；14 heating tapes；
15 pipeline air bleeding valves；161 regulating valves；162 regulating valves；163 regulating valves.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below to the utility model reality
The technical solution in example is applied clearly completely to be described：
As shown in Figure 1：A kind of single tube evaporation test device, including be linked in sequence raw water tank 1, raw water pump 2, preheating can 3,
Heating tube 4, climbing-film evaporation pipe 5, glass regard cup 8, falling-film distributor 10, falling film evaporation pipe 12 and water return tank 13.The glass regards
The top of cup 8 is connected with condenser 7, and condensate liquid catch tray 9 is equipped in the condenser 7；It is equipped in the falling-film distributor 10
Central tube 11, the central tube 11 are connected to the falling film evaporation pipe 12 and the condenser 7.Above and below the climbing-film evaporation pipe 5
Both ends are respectively provided with an observation and regard cup 6, and there are one observations to regard cup 6 by the falling film evaporation Guan Shangshe.
On the tube wall of the climbing-film evaporation pipe 5 and it is equipped with heating tape 14 on the tube wall of the falling film evaporation pipe 12.It is preferred that
, 3 power of the preheating can is 2000W, and 4 power of the heating tube is 300W, and the heating tape power of the climbing-film evaporation tank 5 is
The heating tape power of 200W, the falling film evaporation pipe 12 are 300W.
The cooling water intake of 7 lower part of the condenser is connect with tap water, gap and the ground on 7 top of the condenser
Ditch connects, and the condensate liquid catch tray 9 is connect with the raw water tank 1.
The cooling water intake of the water outlet of the raw water pump 2, the water inlet of the water return tank 13 and the condenser 7 is each
If there are one spinner flowmeters, it as shown is FI101, FI102 and FI103, multiple spinner flowmeter downstreams are equipped with
One regulating valve as shown is regulating valve 161, regulating valve 162 and regulating valve 163.The water outlet of the raw water tank 1 and described
The water outlet of water return tank 13 is equipped with switch valve, and the preheating can upstream is set there are one pipeline air bleeding valve 15.In the preheating can 3 and
It is respectively provided with a thermometer in the water return tank 13, as shown is TI101 and TI105, two observations regard between cup 6
The thermometer there are three being uniformly distributed, as shown is TI102, TI103 and TI104.
The principles of the present invention are as follows：
Liquid in raw water tank 1 is heated up in preheating can 3 to close to boiling, then heated pipe 4 vaporizes, with pipe
Interior bubble gradually increases, and the steam that final liquid is raised pulls into annular membrane, and the tube wall along climbing-film evaporation pipe 5 moves upwards,
Gas-liquid mixture flows simultaneously in climbing-film evaporation pipe pipe, under different heating amounts and different liquid in pipe flow effects,
Different liquid forms is presented in pipe.It is each provided with an observation in climbing-film evaporation pipe upper and lower ends and regards cup 6, judgement can be facilitated
Flow condition in pipe.
Then, gas-liquid mixture is gone out by 5 nozzle of climbing-film evaporation pipe, regards cup 8 into glass, steam enters cold directly up
The liquid of condenser 7, concentration enters falling film evaporation pipe 12 through falling-film distributor 10.Due to the effect of falling-film distributor, it is suitable to form one
The liquid film of inner tubal wall, flows downward due to gravity, and during thin film drainage, heating is imposed outside 12 tube wall of falling film evaporation pipe,
Liquid film inside points moisture vaporizes, and central tube 11 of the steam upwards out of falling-film distributor 10 is discharged into condenser 7, and liquid is again
After being concentrated, into water return tank 13.
The operating procedure of the utility model is described as follows：
First, Preparatory work of experiment is carried out.1）Check valve on off state opens experimental provision general supply, checks that thermometer is aobvious
Whether normal show；2）Originally water flow is adjusted by regulating valve 163, makes FI103 stable readings in 100L/h；3）Preferably, real
Selection distilled water is tested, checks that whether distilled water is filled it up in raw water tank 1, checks whether emptied in water return tank 13；4）Open raw water pump
2, big regulating valve is gradually opened, until the observation of 5 upper end of climbing-film evaporation pipe in cup 6 depending on having liquid level display, opens pipeline air bleeding valve
15 are exhausted and are closed after exhaust, then adjust regulating valve 17, and FI101 readings is made to maintain certain certain value, it is preferred that
10L/h is maintained in this experimentation.
Then, climbing-film evaporation experiment is carried out.1）The suitably exhaust of pipeline air bleeding valve 15 is opened, and maintains raw water flow in 10L/
H or so；2）Open the heating tape 14 of climbing-film evaporation pipe 5；3）It opens preheating can 3 to be heated, suitably adjusts heating power, when
When between TI101 displays 85-90, depending on having bubble stream in cup 6, the appropriate preheating can 3 that adjusts makes gas for the observation of 5 lower end of climbing-film evaporation pipe
It steeps stream mode and maintains certain time, record TI103 and TI104 at this time, and compare raw water flow and circling water flow rate；4）It is appropriate to open
4 heating power 200W of heating tube or so makes the observation of 5 lower end of climbing-film evaporation pipe depending on occurring slug flow in cup 6, records TI103 at this time
And TI104；5）Preheating can 3 and 4 power of heating tube are suitably adjusted again, make the observation of 5 lower end of climbing-film evaporation pipe depending on being seethed in cup 6
Stream records TI103 and TI104 at this time, and compares raw water flow and circling water flow rate.
Finally, falling film evaporation experiment is carried out.1）The suitably exhaust of pipeline air bleeding valve 15 is opened, and maintains raw water flow in 10L/
H or so；2）It maintains to be in bubble stream, slug flow or the state for seething stream in climbing-film evaporation pipe 5；3）Open falling film evaporation pipe 12
Heating tape 14；4）Compare raw water flow and circling water flow rate, analysis has the circling water flow rate of falling film evaporation and the return water without falling film evaporation
Variation between flow.
After experiment, first close heating tube 3, climbing-film evaporation pipe 5 heating tape 14 and falling film evaporation pipe 12 heating tape
14 power supply waits for after a period of stabilisation, turning off raw water pump 2, closing water inlet and cooling water.
In order to further increase the working performance of the utility model, when being designed, to prevent from for a long time when not used, being formed
The sundries such as incrustation scale cover in raw water tank, water return tank and preheating can, are equipped with multiple discharging valves.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model rather than limits it
System；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should manage
Solution：Its still can with technical scheme described in the above embodiments is modified, or to which part technical characteristic into
Row equivalent replacement;And these modifications or replacements, so that the essence of technical solution is detached from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (6)
1. a kind of single tube evaporation test device, it is characterised in that：Including be linked in sequence raw water tank, raw water pump, preheating can, heating
Pipe, climbing-film evaporation pipe, glass regard cup, falling-film distributor, falling film evaporation pipe and water return tank；
The glass is equipped with condensate liquid catch tray depending on being connected with condenser at the top of cup in the condenser；The falling liquid film distribution
Central tube is equipped in device, the central tube is connected to the falling film evaporation pipe and the condenser；Above and below the climbing-film evaporation pipe
Both ends are respectively provided with an observation and regard cup, and there are one observations to regard cup by the falling film evaporation Guan Shangshe.
2. a kind of single tube evaporation test device according to claim 1, it is characterised in that：The tube wall of the climbing-film evaporation pipe
It is equipped with heating tape on upper and the falling film evaporation pipe tube wall.
3. a kind of single tube evaporation test device according to claim 1, it is characterised in that：The cooling of the condenser
Water water inlet is connect with tap water, and the gap on the condenser top is connect with trench, the condensate liquid catch tray with it is described
Raw water tank connects.
4. a kind of single tube evaporation test device according to claim 1, it is characterised in that：Further include multiple spinners
Meter, the cooling water intake of the water outlet of the raw water pump, the water inlet of the water return tank and the condenser are respectively provided with one
The spinner flowmeter.
5. a kind of single tube evaporation test device according to claim 1, it is characterised in that：Further include multiple thermometers, institute
It states in preheating can and is respectively provided with a thermometer in the water return tank, the observation of two on the climbing-film evaporation pipe regards
The thermometer there are three being uniformly distributed between cup.
6. a kind of single tube evaporation test device according to claim 4, it is characterised in that：Further include multiple regulating valves and more
A switch valve, multiple spinner flowmeter downstreams are all provided with there are one the regulating valve, the water outlet of the raw water tank and described
The water outlet of water return tank is equipped with the switch valve；Further include pipeline air bleeding valve, the pipeline air bleeding valve is arranged in the preheating can
Upstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574353.8U CN207822541U (en) | 2017-11-22 | 2017-11-22 | A kind of single tube evaporation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574353.8U CN207822541U (en) | 2017-11-22 | 2017-11-22 | A kind of single tube evaporation test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207822541U true CN207822541U (en) | 2018-09-07 |
Family
ID=63386611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721574353.8U Expired - Fee Related CN207822541U (en) | 2017-11-22 | 2017-11-22 | A kind of single tube evaporation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207822541U (en) |
-
2017
- 2017-11-22 CN CN201721574353.8U patent/CN207822541U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20201122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |