CN209542123U - A kind of climbing-falling film evaporator simulation test system - Google Patents
A kind of climbing-falling film evaporator simulation test system Download PDFInfo
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- CN209542123U CN209542123U CN201920447033.9U CN201920447033U CN209542123U CN 209542123 U CN209542123 U CN 209542123U CN 201920447033 U CN201920447033 U CN 201920447033U CN 209542123 U CN209542123 U CN 209542123U
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Abstract
The utility model discloses a kind of climbing-falling film evaporation/reboiler simulation test system.It include: cooling medium pipe-line cell include heating water tank, centrifugal pump, turbine flowmeter, small heat exchanger, various valves and duct coupling；Steam pipework unit includes steam generator, vacuum tank, steam control valve, vortex-shedding meter, drainer, various valves and duct coupling；Testing heat exchanger unit includes main heat exchanger, gas-liquid separator, plate heat exchanger and duct coupling；Measurement and control unit includes flow measuring and controlling, measurement and control of temperature, pressure testing and controlling and condensate liquid measurement.The climbing-falling film evaporator simulation test system of the utility model, its is compact-sized, easy to operate, operating cost is low, reliable performance, it can be in actual industrial production, climbing-falling film evaporation/reboiler operating condition carries out accurate simulation under various operating conditions, and test is compared to the heat transfer property after liquid film type evaporation/reboiler flowing, heat transfer element optimization, theoretical foundation is provided for design.
Description
Technical field
The utility model relates to heating power field of experiment equipment, and in particular to a kind of elevating membrane evaporation/reboiler test experiments
System.
Background technique
Liquid film type evaporation/reboiler since with liquid, in heat exchange, intraductal retention time is short, pressure drop is small, heat transfer coefficient is big,
The advantages that steam utilization is high, less scaling, wide convenient for cleaning and feed liquid process range, be widely used to chemical industry, oil refining,
The fields such as the energy, space flight, sea water desalination and refrigeration, especially in petrochemical industry, ethylene glycol, ethanol amine, acrylic fibers, terylene etc. are changed
Liquid film type evaporation/reboiler is largely used in the process units such as fibre, chlor-alkali.
But current experimental provision is all the experimental provision that single research rises film or falling liquid film, cannot combine elevating membrane
Get up while research is compared, while the experimental bench that multiple and different functions are arranged not only takes up a large area, invests greatly, wastes
Vast resources, and the test performance quality of different experiments platform directly affects the accuracy and reliability of test result；It is industrial real
In the production of border, the difference of different operating condition down-off ranges, working medium solution physical property, evaporation capacity etc. is all larger, existing experimental provision
Single pipeline, the limitation for being limited to the conditions such as the scope of application of flowmeter are difficult the operating condition of the various operating conditions of accurate simulation；No
The design of liquid dispensing apparatus has a direct impact falling film evaporation effect under same working medium, flow, cannot in existing experimental provision
Realize the switching of different type liquid distributor.
Utility model content
Therefore, the technical problems to be solved in the utility model is to provide a kind of climbing-falling film evaporator/reboiler simulation survey
Experimental system is tried, it is compact-sized, easy to operate, operating cost is low, reliable performance, it can be various in actual industrial production
Climbing-falling film evaporation/reboiler operating condition carries out accurate simulation and liquid film type evaporation/reboiler flowing, passes under operating condition
Heat transfer property after thermal element optimization compares test, and the design for new and effective climbing-falling film evaporation/reboiler provides reason
By foundation.
The technical solution of the utility model is a kind of climbing-falling film evaporator simulation test system, which includes
Cooling medium pipe-line cell, steam pipework unit, test heat exchanger unit and data measurement and control unit, each unit by pipeline or
Corresponding connecting element is connected；
In the cooling medium pipe-line cell, the outlet of heating water tank (1) is connect with the entrance of centrifugal pump (4), it is described from
The outlet of heart pump (4) by the first parallel pipeline (5) respectively with the first turbine flowmeter (6-1) and the second turbine flowmeter (6-
2) it connects；The outlet of first turbine flowmeter (6-1) and the second turbine flowmeter (6-2) passes through cooling medium pipeline, the
Two parallel pipelines (8) are connect with main heat exchanger；The main heat exchanger is connected by small heat exchanger (17) and the heating water tank (1)
It is logical；
In the steam pipework unit, steam generator (11) is sequentially connected vacuum tank (12) by pipeline, steam is adjusted
Valve (13) and vortex-shedding meter (14), the vortex-shedding meter (14) connect with the shell-side inlet of main heat exchanger, the main heat exchange
The outlet of device is connect with drainer (20)；
In the test heat exchanger unit, the main heat exchanger includes rising membrane type double-tube heat exchanger (22-2) and falling film type set
Heat exchange of heat pipe (22-1) is connected respectively with corresponding gas-liquid separator by pipeline, then is connected with corresponding plate heat exchanger
It connects, completes the heat transfer process of cold and hot medium and the gas-liquid separation process of cold medium；
The pipe side of the main heat exchanger (22) and shell-side inlet and outlet are fitted with pressure difference transmitter and temperature sensor respectively,
Temperature sensor is installed, while equipped with condensate quality measuring device on the heat exchanger tube of main heat exchanger.
The measurement and control unit includes flow measuring and controlling, measurement and control of temperature, pressure testing and controlling and condensate liquid measurement, including cooling Jie
The first turbine flowmeter (6-1) and the second turbine flowmeter (6-2) of matter pipeline, the vortex-shedding meter (14) of steam pipework are main
The pipe side of heat exchanger (22) and shell-side inlet and outlet are fitted with pressure difference transmitter and temperature sensor, the heat exchange of main heat exchanger respectively
It is also equipped on pipe temperature sensor (24), while condensate quality can be measured equipped with electronic balance.
In the climbing-falling film evaporator simulation test system of the utility model, it is preferred that described liter of membrane type set
Heat exchange of heat pipe (22-2) and falling film type double-tube heat exchanger (22-1), by pipeline respectively with corresponding second gas-liquid separator
The connection of (9-2), the first gas-liquid separator (9-1), second gas-liquid separator (9-2) are connected with plate heat exchanger (10),
Complete the heat transfer process of cold and hot medium and the gas-liquid separation process of cold medium.
In the climbing-falling film evaporator simulation test system of the utility model, it is preferred that the plate-type heat-exchange
Device (10), steam generator (11) are connect with water softener (19) respectively.
To reduce experimental error, experimental provision fouling, the external a set of demineralized water treatment device of experimental system, the experimental system are prevented
The cooling water used using heat exchangers such as water, plate heat exchangers (10), steam generator (11) are water softener (19) using water
The deionized water of processing.
Wherein, regulating valve (7) are equipped between first parallel pipeline (5) and the second parallel pipeline (8).
In the climbing-falling film evaporator simulation test system of the utility model, it is preferred that the cooling medium
Pipeline is connected by the second parallel pipeline (8) with main heat exchanger pipe side-entrance.
By the switching of valve, the type for the main heat exchanger tested can choose.
In the climbing-falling film evaporator simulation test system of the utility model, it is preferred that the steam pipework
The shell that unit passes through third parallel pipeline (15) and liter membrane type double-tube heat exchanger (22-2) and falling film type double-tube heat exchanger (22-1)
Side-entrance connection；The connection of the same drainer of the shell-side outlet of main heat exchanger (20) is completed by the 4th parallel pipeline (21).
By the switching of valve, the type of main heat exchanger can choose；By the switching of valve, condensate liquid can be made timely
It is discharged into drainer.
In the climbing-falling film evaporator simulation test system of the utility model, it is preferred that in described liter of membrane type
Double-tube heat exchanger (22-2) and falling film type double-tube heat exchanger (22-1) are respectively equipped with two visors (23) up and down.
Further, liquid dispensing apparatus (16) are installed in falling film type double-tube heat exchanger (22-1) upper end.
Further, visor is provided on liquid dispensing apparatus.
Different types of nozzle filming device can be installed on heat exchanger, be provided with visor on liquid dispensing apparatus, it can be more preferable
Observe the distribution flow regime of liquid medium.
In the climbing-falling film evaporator simulation test system of the utility model, it is preferred that the turbine flow
It counts (6), vortex-shedding meter (14) and temperature sensor (24) and passes through multiple channel test recorder (26) and computer (28) system
Connection；Pressure difference transmitter (25) data are acquired by power control cabinet (27), are output in computer (28) and are shown.
The utility model has the advantages that following main compared with prior art:
1. elevating membrane heat transfer is combined while being compared research by experimental system, can be to reality by experimental system
Under the operating condition of border, rises flowing and heat transfer property of the membranous system with falling liquid film system and compare and analyze, set for film-type evaporation/reboiler
Meter provides theoretical foundation, and system structure is compact, easy to operate, operating cost is low, solves the multiple testing stand occupied areas of setting
Greatly, the disadvantages of waste of resource.
2. the accuracy and reliability of experimental system test result greatly improves, many places in experimental system are all right
Design is optimized, can be with elevating membrane evaporation/reboiler operating condition, DCU data control unit under accurate simulation actual condition
Real-time tracing monitoring, test essence can be carried out to the situation of change of the working fluid and steam temperature, pressure and flow in systems
Degree is high.
3. experimental system is convenient for disassembly and assembly, experimental system is made of four units, and each unit is relatively independent, is dismounted
Carry out very simple, can realize the replacement of single heat exchange element at any time, which can not only simulate actual operating mode,
Test can also be compared to the flowing in physical device, the heat transfer property after heat transfer element optimization, be new and effective lifting
The design of film-type evaporation/reboiler provides theoretical foundation.
Detailed description of the invention
Fig. 1 is a kind of climbing-falling film evaporation/reboiler simulation test system schematic described in the utility model；
Fig. 2 is a kind of climbing-falling film evaporation/reboiler simulation test system data observing and controlling described in the utility model
Cell schematics；
Fig. 3 is that a kind of climbing-falling film evaporation/reboiler simulation test system described in the utility model rises film condition
Lower system operation schematic diagram；
Fig. 4 is a kind of climbing-falling film evaporation/reboiler simulation test system falling liquid film condition described in the utility model
Lower system operation schematic diagram.
In figure, 1, heating water tank, 2, screw thread ball valve, 3, y-type filter, 4, centrifugal pump, the 5, first parallel pipeline, 6-1,
One turbine flowmeter, 6-2, the second turbine flowmeter 7, regulating valve, the 8, second parallel pipeline, 9-1, the first gas-liquid separator, 9-
2, the second gas-liquid separator, 10-1, the first plate heat exchanger, 10-2, the second plate heat exchanger, 11, steam generator, 12, steady
Pressure tank, 13, steam control valve, 14, vortex-shedding meter, 15, third parallel pipeline, 16, liquid dispensing apparatus, 17, small heat exchanger,
18, water tank working medium inlet, 19, water softener system, 20, drainer, the 21, the 4th parallel pipeline, 22, main heat exchanger, 22-1 drop
Membrane type double-tube heat exchanger, 22-2 rise membrane type double-tube heat exchanger, 23, visor, 24, temperature sensor, 25, pressure difference transmitter, and 26, more
Channel recorder, 27, power control cabinet, 28, computer.
Specific embodiment
The elevating membrane evaporation of the utility model/reboiler simulation test system, as shown in Figure 1, by cooling medium pipe
Road unit, steam pipework unit, test heat exchanger unit and data measurement and control unit composition, each unit pass through pipeline or corresponding
Connecting element is connected.
4 entrance of centrifugal pump is exported by screw thread ball valve 2 and y-type filter 3 with heating water tank 1 in cooling medium pipe-line cell
Be connected, centrifugal pump 4 outlet is connected with the first parallel pipeline 5, each pipeline of the first parallel pipeline 5 be fitted with a valve with
Turbine flowmeter, regulating valve 7 can control the flow of the first parallel pipeline, flow into cooling medium by the second parallel pipeline 8
Main heat exchanger pipe side entrance to be tested, by heat exchange, the small heat exchanger 17 for finally flowing through heating water tank top returns to heating water
In case, cooling medium pipe-line cell is formd.
The steam pipework unit include steam generator 11, vacuum tank 12, steam control valve 13, vortex-shedding meter 14,
Drainer 20, various valves and duct coupling.Steam generator 11 is sequentially connected pressure stabilizing by pipeline in steam pipework unit
Tank 12, steam control valve 13, vortex-shedding meter 14 will heat steam by third parallel pipeline 15 be sent into main heat exchanger shell-side into
Mouthful, by heat exchange, steam is condensed into liquid, is flowed into drainer 20 via the 4th parallel pipeline 21, will be cold by drain valve
Lime set is discharged by sewer pipe, forms steam pipework unit.
Testing heat exchanger unit includes main heat exchanger 22, the first gas-liquid separator 9-1, the second gas-liquid separator 9-2, first
Plate heat exchanger 10-1, the second plate heat exchanger 10-2 and duct coupling, wherein main heat exchanger is by a liter membrane type double-tube heat exchanger
22-2 and falling film type double-tube heat exchanger 22-1 composition, by pipeline respectively with corresponding gas-liquid separator and plate heat exchanger 10
Be connected (No. 22-1 corresponds to Falling film heat transfer system, and No. 22-2 corresponds to a liter film heat-exchange system), completes the heat exchange of cold and hot medium
The gas-liquid separation process of process and cold medium is equipped with liquid dispensing apparatus 16 on special falling film type double-tube heat exchanger 22-1,
Cooling medium can be evenly distributed with.
One two three four parallel pipeline completes the switching of pipeline by the switch of screw thread ball valve 2, to be connected to needed for measurement
Test pipeline.
The cooling water that experimental system is used using heat exchangers such as water, plate heat exchangers, steam generator are soft using water
Treated the deionized water of water heater system 19, water softener system are completed with the connection of each heat exchanger by hose, can be by screw thread
Ball valve 2 controls its switch.
In one preferred embodiment, main heat exchanger 22 is double-tube heat exchanger, and casing specification is 76 × 3mm of Φ, is changed
The effective length of heat pipe is 1800mm.Pressure compaction O-ring of the heat exchanger pressing plate by flange, the O-ring exchange heat pipe production of compression
Raw pressure, realizes the sealing between casing and pressing plate.Visor 23 is provided on main heat exchanger 22 and liquid dispensing apparatus 16, it is convenient
Observation experiment phenomenon.
The pipeline and equipment that working medium contacts in experimental system are made using 304L stainless steel.
As shown in Fig. 2, the temperature sensor 24 in Fig. 1, turbine flowmeter 6 (including the first turbine flowmeter 6-1 and second
Turbine flowmeter 6-2) and vortex-shedding meter 14 connect with multichannel recorder 26 by wiring, then connect with computer 28；Pressure
Poor transmitter 25 is acquired by power control cabinet 27, and final all experimental datas, which are all output in computer 28, to be shown, is transported in system
When row, data can be monitored and recorded in real time.Condensate quality is measured by the electronic balance being specially equipped with, and is measured
Condensate liquid can continue cycling through utilization by 18 injection heating water tank of water tank working medium inlet.
Climbing-falling film evaporation/reboiler simulation test system rises system operation schematic diagram under the conditions of film, sees Fig. 3, arrow
Head indicates the flow direction of various media.
System operation schematic diagram under the conditions of climbing-falling film evaporation/reboiler simulation test system falling liquid film, is shown in Fig. 4, arrow
Head indicates the flow direction of various media.
The basic process for using of the experimental system are as follows: system pipeline is first checked for, according to the size of experiment condition flow, selection
Valve before corresponding to turbine flowmeter in parallel pipeline 1 is in the open state；According to the requirement of experiment model, parallel pipeline is adjusted
2, the valve in 3,4 is allowed in correct switch state；Check plate to be used change, the experiment such as condenser, water softening system
Valve before device is allowed in correct switch state.It is then turned on the power supply of cooling medium pipe-line cell, starting centrifugation
Pump；The power supply of steam pipework unit is opened, steam generator is started；The power supply of turn-on data measurement and control unit, starting computer, more
The test equipments such as channel recorder in experimentation, pass through real-time monitoring of computer and record data, adjust cooling medium pipeline
The reasonable aperture of steam control valve, completes the adjusting of experiment condition in middle regulating valve and steam pipework.After experiment, first close
The power supply of steam pipework unit, etc. after systems cool down, close the power supply of cooling medium pipe-line cell and data measurement and control unit,
Terminate experiment.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of climbing-falling film evaporator simulation test system, it is characterised in that: the device includes cooling medium pipeline list
Member, steam pipework unit, test heat exchanger unit and data measurement and control unit, each unit pass through pipeline or corresponding connecting element
It is connected；
In the cooling medium pipe-line cell, the outlet of heating water tank (1) is connect with the entrance of centrifugal pump (4), the centrifugal pump
(4) outlet is connected with the first turbine flowmeter (6-1) and the second turbine flowmeter (6-2) respectively by the first parallel pipeline (5)
It connects；The outlet of first turbine flowmeter (6-1) and the second turbine flowmeter (6-2) passes through cooling medium pipeline, second simultaneously
Union road (8) is connect with main heat exchanger；The main heat exchanger is connected to by small heat exchanger (17) with the heating water tank (1)；
In the steam pipework unit, steam generator (11) is sequentially connected vacuum tank (12), steam control valve by pipeline
(13) it is connect with vortex-shedding meter (14), the vortex-shedding meter (14) with the shell-side inlet of main heat exchanger, the main heat exchanger
Outlet connect with drainer (20)；
In the test heat exchanger unit, the main heat exchanger includes that liter membrane type double-tube heat exchanger (22-2) and falling film type casing change
Hot device (22-1) is connected respectively with corresponding gas-liquid separator by pipeline, then is connected with corresponding plate heat exchanger, complete
At the heat transfer process of cold and hot medium and the gas-liquid separation process of cold medium；
The pipe side of the main heat exchanger (22) and shell-side inlet and outlet are fitted with pressure difference transmitter and temperature sensor respectively, and master changes
Temperature sensor is installed, while equipped with condensate quality measuring device on the heat exchanger tube of hot device.
2. a kind of climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: the liter
Membrane type double-tube heat exchanger (22-2) and falling film type double-tube heat exchanger (22-1), by pipeline respectively with corresponding second gas-liquid point
It is connected from device (9-2), the first gas-liquid separator (9-1), second gas-liquid separator (9-2) is connected with plate heat exchanger (10)
It connects, completes the heat transfer process of cold and hot medium and the gas-liquid separation process of cold medium.
3. climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: described board-like to change
Hot device (10), steam generator (11) are connect with water softener (19) respectively.
4. climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: described first simultaneously
Regulating valve (7) are equipped between union road (5) and the second parallel pipeline (8).
5. climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: cooling Jie
Matter pipeline is connected by the second parallel pipeline (8) with main heat exchanger pipe side-entrance.
6. climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: the steam pipe
Road unit is by third parallel pipeline (15) and rises membrane type double-tube heat exchanger (22-2) and falling film type double-tube heat exchanger (22-1)
Shell-side inlet connection；The connection of the same drainer of the shell-side outlet of main heat exchanger (20) is completed by the 4th parallel pipeline (21).
7. climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: in described liter of film
Formula double-tube heat exchanger (22-2) and falling film type double-tube heat exchanger (22-1) are respectively equipped with two visors (23) up and down.
8. climbing-falling film evaporator simulation test system according to claim 1 or 2, it is characterised in that: described
The upper end falling film type double-tube heat exchanger (22-1) is equipped with liquid dispensing apparatus (16).
9. climbing-falling film evaporator simulation test system according to claim 8, it is characterised in that: the liquid point
With being provided with visor on device.
10. climbing-falling film evaporator simulation test system according to claim 1, it is characterised in that: the turbine
Flowmeter (6), vortex-shedding meter (14) and temperature sensor (24) pass through multiple channel test recorder (26) and computer (28)
System connection；Pressure difference transmitter (25) data are acquired by power control cabinet (27), are output in computer (28) and are shown.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447033.9U CN209542123U (en) | 2019-04-03 | 2019-04-03 | A kind of climbing-falling film evaporator simulation test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920447033.9U CN209542123U (en) | 2019-04-03 | 2019-04-03 | A kind of climbing-falling film evaporator simulation test system |
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| Publication Number | Publication Date |
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| CN209542123U true CN209542123U (en) | 2019-10-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855900A (en) * | 2019-04-03 | 2019-06-07 | 无锡化工装备股份有限公司 | A kind of climbing-falling film evaporator integration test experimental system |
-
2019
- 2019-04-03 CN CN201920447033.9U patent/CN209542123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855900A (en) * | 2019-04-03 | 2019-06-07 | 无锡化工装备股份有限公司 | A kind of climbing-falling film evaporator integration test experimental system |
| CN109855900B (en) * | 2019-04-03 | 2024-02-02 | 无锡化工装备股份有限公司 | Comprehensive test experiment system for lifting film evaporator |
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