CN108261791A - Stablize adjustable liquid falling film evaporation device - Google Patents
Stablize adjustable liquid falling film evaporation device Download PDFInfo
- Publication number
- CN108261791A CN108261791A CN201810262692.5A CN201810262692A CN108261791A CN 108261791 A CN108261791 A CN 108261791A CN 201810262692 A CN201810262692 A CN 201810262692A CN 108261791 A CN108261791 A CN 108261791A
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- China
- Prior art keywords
- falling film
- controller
- evaporation tube
- adjustable liquid
- liquid falling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Stablize adjustable liquid falling film evaporation device the invention discloses a kind of, including support device, it is adjusted in the support device and is provided with evaporation tube, it is provided on the outside of the evaporation tube epimere on the outside of thermocouple and hypomere and is provided with heating collar, the evaporation tube inlet connects syringe pump by conduit, the thermocouple connects temperature collecting module, and the heating collar and syringe pump are all connected with controller and by controller control action.The present invention is using controller control fluid flow and heating power, the evaporation tube support device of setting can adjust the angle of inclination of evaporation tube according to demand, the present invention facilitates change evaporation conditions, it is easy to operate, high degree of automation, it can be with real-time display monitoring experiment state, liquid with precise control flow and heating power.
Description
Technical field
The present invention relates to falling film evaporation devices, and in particular to a kind of to stablize adjustable liquid falling film evaporation device.
Background technology
It is big that thermal loss usually occurs in liquid vaporising unit, it is impossible to be controlled, the shortcomings of liquid evaporation is unstable.Falling liquid film
Evaporation technique has the advantages that heat transfer efficiency is high, and heat transfer temperature difference is small, cryogenic heat transfer function admirable, to the falling film evaporation characteristic of liquid
Research just very with practical value and scientific research value.It is done currently for horizontal tube falling film evaporation characteristic and vertical tube falling characteristic
Many experiment and research, but the falling film evaporation device research of tipping tube is insufficient, and existing tipping tube vaporising device inconvenience changes evaporation
Condition, it is complicated for operation, it tilts tube angulation inconvenience and adjusts according to demand, fluid flow and heating power cannot be controlled accurately.
Invention content
Goal of the invention：Stablize adjustable liquid falling film evaporation device the object of the present invention is to provide a kind of, solve existing
Vaporising device inconvenience changes evaporation conditions, complicated for operation, tilts tube angulation inconvenience and adjusts according to demand, fluid flow and heating work(
The problem of rate cannot be controlled accurately.
Technical solution：It is of the present invention it is a kind of stablize adjustable liquid falling film evaporation device, including support device, institute
It states to be adjusted in support device and is provided with evaporation tube, be provided on the outside of thermocouple and hypomere and be provided on the outside of the evaporation tube epimere
Heating collar, the evaporation tube inlet connect syringe pump by conduit, and the thermocouple connects temperature collecting module, the heating collar
Controller is all connected with syringe pump and by controller control action.
It is made of in order to facilitate fixed and adjusting evaporation tube, the support device two pieces of orthogonal stainless steel plates, two
Feel on a plate and be provided with several holes being adapted to evaporation tube.
Evaporation pipe outer wall and test temperature are fixed in order to facilitate thermocouple, the thermocouple is clip K-type thermocouple.
For liquid with precise control flow, the syringe pump is electrically connected with the controller by stepper motor driver, described
Controller control stepper motor driver acts to drive syringe pump.
In order to accurately control heating power, the heating collar is spring heating coil, and the heating collar passes through silicon controlled module
It is electrically connected with the controller, the controller control silicon controlled module works that heating collar is controlled to heat.
Connected with controller by serial ports upper in order to facilitate display and monitoring experiment state, the temperature collecting module
Machine.
Heat losses and ensure safety in order to prevent, package thermal insulation material outside the heating collar.
In order to be cooled down and collected the steam of heating and liquid, the leakage of liquid and steam, the evaporation tube are prevented
Outlet connects fluid reservoir by condenser.
In order to which the temperature of 8 thermocouples can be measured simultaneously, the temperature survey under different demands, the temperature can be met
Acquisition module uses the temperature collecting module of 8 channels.
Advantageous effect：The present invention is using controller control fluid flow and heating power, the evaporation tube support device of setting
The angle of inclination of evaporation tube can be adjusted according to demand, and the present invention facilitates change evaporation conditions, easy to operate, the degree of automation
Height, can be with real-time display monitoring experiment state, liquid with precise control flow and heating power.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is support device structure diagram；
Fig. 3 is the structure diagram of evaporation tube；
Fig. 4 is each component controls relation schematic diagram of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figs 1-4, it is a kind of to stablize adjustable liquid falling film evaporation device, including support device, in support device
Adjustable to be provided with evaporation tube, support device 7 is made of two pieces of orthogonal stainless steel plates, the surrounding point of one of plate
It is other to beat there are one aperture, for being fixed on experiment table top, in addition one block of plate beaten at center there are one aperture, using central small hole as
The center of circle, 10cm are uniformly to be equipped with 24 apertures on the circle of radius, and for fixing evaporation tube 3, wherein aperture is adapted to evaporation tube.It steams
Pipe is sent out using quartz ampoule, quartz ampoule thermal stability is good, and translucency is good.Quartz ampoule can at a high temperature of 1100 DEG C long-time work
Make.Since translucency is good, the evaporation situation of liquid can be easily observed, evaporation tube is divided into three parts：Bringing-up section, outlet
Section and experimental section.Thermocouple is provided on the outside of experimental section above evaporation tube and be heated below on the outside of section and be provided with heating collar, evaporate
The bringing-up section of pipe is heated by spring heating coil, and spring heater is surrounded by thermal insulation material, and thermal insulation material is asbestos layer, a side
Face is the lost of heat in order to prevent, is on the other hand to ensure safety.The internal diameter of spring heating coil is slightly larger than evaporation tube
Internal diameter, evaporation tube are directly inserted into spring heating coil, but evaporation tube will not loosen, and keep stable state.Evaporation
The experimental section of pipe is used for the falling film evaporation of liquid, can directly observe evaporation situation, the outer surface of experimental section is equipped with clip K-type heat
Galvanic couple, K-type thermocouple 6 are fixed on measurement of 3 outer wall of evaporation tube for temperature by clip.The length of evaporation tube, which can be changed, to expire
The demand of liquid falling film evaporation characteristic under foot research different temperatures gradient.3 upper ends of evaporation tube are connected with plastic catheter 2, modeling
Material conduit 2 is close to 3 inner wall of evaporation tube, 2 other end of plastic catheter connection syringe pump, and the liquid that syringe pump 1 supplies can be along
Evaporation tube is transported to by plastic tube 2, the lower end of evaporation tube 3 is connected with silica gel catheter 8, and silica gel catheter 8 is wrapped in evaporation tube 3
In outlet, 8 other end of silica gel catheter connects liquid storage device 10 by condenser 9, and the steam of heating and liquid are cooled down and received
Collection, prevents the leakage of liquid and steam, the fluid storage finally collected is in liquid storage device 10.Syringe pump 1 is driven by stepper motor
Dynamic device is electrically connected with controller 13, controller control stepper motor driver action, stepper motor driver driving syringe pump work
Make, spring heating coil 4 is electrically connected with the controller by silicon controlled module 12 on evaporation tube 3, and control module 13 acts on silicon-controlled
Module 12, so as to control the heating state of spring heating coil 4.K-type thermocouple connects temperature collecting module, temperature collecting module 11
It is connect with controller 13 with host computer 15 by serial ports, the temperature that K-type thermocouple 6 is surveyed is shown on host computer 15, control
Device 13 controls silicon controlled module 12 and stepper motor driver 14, and required fluid flow is inputted on host computer 15, controls
Module 13 will act on stepper motor driver 14, so as to drive syringe pump) movement, the liquid flow of supply evaporation tube input
Amount.Controller uses microcontroller.Liquid is firstly stored in the syringe of syringe pump in the present invention, then the rotation of stepper motor
Syringe is caused to move, during liquid is from injector current to plastic catheter, subsequently liquid from plastic catheter along in evaporation tube
Toward flowing down, liquid first heats wall in evaporation tube, and reaching certain temperature liquid will evaporate, vaporized steam and unevaporated
Liquid can be entered in silica gel catheter, liquid is cooled to hence into condenser, in final fluid storage to liquid storage device.
When using the present invention, the angle of inclination of evaporation tube 3 is selected, evaporation tube 3 is fixed on support dress with fixing
It puts on 8；Selecting required heating power, either output power or control temperature is written by host computer 15 in heating temperature,
Controller control spring heating coil heats evaporation tube 3；Evaporation tube 3 is observed on host computer 15 while heating
Temperature change records temperature after temperature stabilization；After temperature is stablized, the liquid supply flow rate of selection is needed according to experiment, is led to
It crosses host computer 15 and inputs fluid flow, liquid is flowed into plastic catheter 4 by syringe pump 1, finally flows into evaporation tube 3；Liquid exists
It is evaporated in evaporation tube 3, liquor evaporation processes can be observed, when temperature tends towards stability, and record evaporation tube at this time
Whether temperature, observation 3 outlet section of evaporation tube have liquid outflow；The steam and unevaporated liquid finally evaporated passes through condenser 9
Cooling, finally enters liquid storage device 10.
Claims (9)
1. a kind of stablize adjustable liquid falling film evaporation device, which is characterized in that including support device (7), the support dress
It puts to be adjusted on (7) and is provided with evaporation tube (3), be provided on the outside of thermocouple (6) and hypomere and set on the outside of evaporation tube (3) epimere
Heating collar (4) is equipped with, evaporation tube (3) entrance connects syringe pump (1) by conduit, and thermocouple (6) the connection temperature is adopted
Collect module (11), the heating collar (4) and syringe pump (1) are all connected with controller (13) and by controller (13) control action.
2. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the support device
(7) it is made of two pieces of orthogonal stainless steel plates, several holes being adapted to evaporation tube (3) is both provided on two plates.
3. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the thermocouple
(6) it is clip K-type thermocouple.
4. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the syringe pump
(1) it is electrically connected by stepper motor driver (14) with controller (13), the controller (13) controls stepper motor driver
(14) it acts to drive syringe pump (1).
5. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the heating collar
(4) it is spring heating coil, the heating collar (4) is electrically connected by silicon controlled module (12) with controller (13), the controller
(13) control silicon controlled module (12) works that heating collar (4) is controlled to heat.
6. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the temperature acquisition
Module (11) connects host computer (15) with controller (13) by serial ports.
7. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the heating collar
(4) outside package thermal insulation material.
8. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the evaporation tube
(3) outlet connects fluid reservoir (10) by condenser (9).
9. according to claim 1 stablize adjustable liquid falling film evaporation device, which is characterized in that the temperature acquisition
Module (11) using 8 channels temperature collecting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262692.5A CN108261791B (en) | 2018-03-27 | 2018-03-27 | Liquid falling film evaporation device with adjustable stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262692.5A CN108261791B (en) | 2018-03-27 | 2018-03-27 | Liquid falling film evaporation device with adjustable stability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108261791A true CN108261791A (en) | 2018-07-10 |
| CN108261791B CN108261791B (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262692.5A Active CN108261791B (en) | 2018-03-27 | 2018-03-27 | Liquid falling film evaporation device with adjustable stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108261791B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576518A (en) * | 2009-06-17 | 2009-11-11 | 中国科学院广州能源研究所 | Experimental device for evaporation, absorption and mass transferring of falling film of vertical tube |
| CN107271478A (en) * | 2017-06-13 | 2017-10-20 | 华北水利水电大学 | A kind of VERTICAL TUBE Heat Transfer in Evaporating Falling Film pilot system and its test method |
-
2018
- 2018-03-27 CN CN201810262692.5A patent/CN108261791B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576518A (en) * | 2009-06-17 | 2009-11-11 | 中国科学院广州能源研究所 | Experimental device for evaporation, absorption and mass transferring of falling film of vertical tube |
| CN107271478A (en) * | 2017-06-13 | 2017-10-20 | 华北水利水电大学 | A kind of VERTICAL TUBE Heat Transfer in Evaporating Falling Film pilot system and its test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108261791B (en) | 2020-07-14 |
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