CN105352994A - Vapor condensation experiment device intensified through cavitation effect and contained with non-condensable gas - Google Patents
Vapor condensation experiment device intensified through cavitation effect and contained with non-condensable gas Download PDFInfo
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- CN105352994A CN105352994A CN201510848946.8A CN201510848946A CN105352994A CN 105352994 A CN105352994 A CN 105352994A CN 201510848946 A CN201510848946 A CN 201510848946A CN 105352994 A CN105352994 A CN 105352994A
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- venturi tube
- inconduc
- vapor condensation
- cavitation effect
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
Abstract
The invention discloses a vapor condensation experiment device intensified through a cavitation effect and contained with non-condensable gas, and belongs to the technical field of condensation heat exchange intensification. The vapor condensation experiment device comprises an evaporator and a Venturi tube which are connected with each other through a mixing tube, and the mixing tube is provided with an air inlet tube which is provided with an air valve; the top of the Venturi tube is provided with a water inlet tube, and one side of the throat portion of the Venturi tube is provided with a high-speed camera used for collecting the cavitation phenomenon. Water is fed from the top of the Venturi tube through a water inlet system, passes through the throat section and is collected at the bottom of the Venturi tube after cavitation is conducted. Mixed gas of vapor and air is fed into the Venturi tube and makes contact with the cavitated water to be condensed. Due to the fact that a vortex and turbulent motion of the water are caused by air bubbles in the water, condensation heat exchange of the vapor is intensified. The experiment device is compact in structure, capable of saving energy, environmentally friendly and good in testability.
Description
Technical field
The invention belongs to the technical field of condensing heat-exchange strengthening, be specifically related to a kind of cavitation effect that adopts and strengthen the series of vapor condensation experiments device containing inconduc.
Background technology
Condensing heat-exchange is the heat exchange mode that many industrial heat exchange devices and household heating, refrigeration plant are commonly used, and this heat exchange mode exists the advantage that heat exchange efficiency is high and heat transmission equipment is small-sized and compact.But in vapor condensation heat-exchange process, inevitably will be mixed into inconduc, the existence of inconduc is the one of the main reasons causing degradation of heat exchange performance of heat exchanger.In addition, other some commercial Application will inevitably relate to the situation of steam condensation in inconduc, and such as from raw gas, condensation coal tar just belongs to this situation.Therefore, strengthening is the groundwork improving heat interchanger heat exchange efficiency containing the steam-condensation efficiency of inconduc.
Venturi tower is one of important recycling of condensed steam equipment of industrial sector, it energy-conservation particularly important.Venturi tower forms primarily of contraction section, larynx section and diffuser.Steam and recirculated cooling water enter from venturi tower top, at contraction section, direct condensation by contact occur, most of steam condensation, and residual steam enters larynx section together with recirculated cooling water, and leaves from diffuser.The condensation efficiency of existing venturi tower is only 60%-80%, and be the one of the main reasons that venturi tower condensation efficiency declines containing inconduc in steam, the air as contained 1% in the steam that contact with jet water column can make cooling energy recovery reduce about 50%.Therefore, effectively promote that steam is the important key making venturi tower energy-conservation with the condensation by contact of decline water column in inconduc.In the larynx section of venturi tower, because caliber narrows, pressure drop, very easily makes current generation cavitation effect herein, if can utilize the cavitation effect of current to strengthen the steam condensation by contact heat exchange containing inconduc.To greatly promote the energy-conserving and environment-protective of venturi tower, but, rarely have the research to cavitation effect strengthening condensing heat-exchange at present.
Summary of the invention
In order to overcome the defect that above-mentioned prior art exists, the object of the present invention is to provide a kind of cavitation effect that adopts to strengthen the series of vapor condensation experiments device containing inconduc, this experimental provision compact conformation, energy-conserving and environment-protective, have good measurability.
The present invention is achieved through the following technical solutions:
Adopt cavitation effect to strengthen the series of vapor condensation experiments device containing inconduc, comprise evaporator and Venturi tube, evaporator is connected by mixing tube with Venturi tube, and mixing tube is provided with blast pipe; Being provided with water inlet pipe at Venturi tube top, being provided with the high-speed camera for gathering cavitation phenomenon in venturi throat side.
Be provided with drainpipe in the bottom of Venturi tube, this drainpipe is provided with draining valve.
Below venturi throat side tube wall on be provided with vent pipe, this vent pipe is provided with first row air valve.
Vent pipe also sets gradually first-class gauge, the first tensimeter and the first thermometer, and vent valve is arranged between first-class gauge and Venturi tube.
The gas mixing pipe pipeline that evaporator is connected with Venturi tube sets gradually Gas mixing valve, the second thermometer, second gauge and the second tensimeter.
The end of water inlet pipe is provided with pressure regulating pump, and the water inlet pipe pipeline be connected with pressure regulating pump in Venturi tube sets gradually water intaking valve, the 3rd flowmeter, the 3rd tensimeter and the 3rd thermometer.
Blast pipe is provided with air valve, and the end of water inlet pipe is provided with blower fan, the pipeline between blower fan and air valve is provided with successively the 4th thermometer, the 4th tensimeter and the 4th flowmeter.
Be provided with gas outlet at evaporator top, gas outlet is provided with second row air valve; Be provided with rising pipe at base of evaporator, rising pipe is provided with outlet valve.
Described evaporator is connected with power supply by electric wire.
Compared with prior art, the present invention has following useful technique effect:
Employing cavitation effect strengthening disclosed by the invention is containing the series of vapor condensation experiments device of inconduc, the system be made up of evaporator, Venturi tube, blast pipe and water inlet pipe, water is passed into by the top of water inlet pipe from Venturi tube, through larynx section, there is cavitation, then collect in the bottom of Venturi tube.Form mixed gas after the air mixing that the steam that evaporator produces and blast pipe pass into, this mixed gas is admitted in Venturi tube, contacts in throat condensation occurs with the aqueous phase of generation cavitation.Because the air bubble in water makes water produce whirlpool and turbulence, the condensing heat-exchange of steam is reinforced, and is provided with the high-speed camera for gathering cavitation phenomenon in venturi throat side, the power of cavitation phenomenon can be recorded, this experimental provision compact conformation, energy-conserving and environment-protective, have good measurability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1 is power supply; 2 is electric wire; 3 is evaporator; 4 is gas outlet; 5 is second row air valve; 6 is blower fan; 7 is blast pipe; 8 is the 4th thermometer; 9 is the 4th tensimeter; 10 is the 4th flowmeter; 11 is air valve; 12 is gas mixing pipe; 13 is Gas mixing valve; 14 is the second thermometer; 15 is second gauge; 16 is the second tensimeter; 17 is water intaking valve; 18 is the 3rd flowmeter; 19 is the 3rd tensimeter; 20 is the 3rd thermometer; 21 is water inlet pipe; 22 is pressure regulating pump; 23 is the first thermometer; 24 is the first tensimeter; 25 is first flow agent; 26 is first row air valve; 27 is Venturi tube; 28 is draining valve; 29 is drainpipe; 30 is high-speed camera; 31 is rising pipe; 32 is outlet valve; 33 is vent pipe.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, the experimental provision of employing cavitation effect strengthening steam-condensation of the present invention, comprise evaporator 3 and Venturi tube 27, described evaporator 3 is connected with power supply 1 by electric wire 2.Evaporator 3 is connected by mixing tube 12 with Venturi tube 27, and mixing tube 12 is provided with blast pipe 7, and blast pipe 7 is provided with air valve 11; Being provided with water inlet pipe 21 at Venturi tube 27 top, being provided with the high-speed camera 30 for gathering cavitation phenomenon in Venturi tube 27 throat side; Be provided with drainpipe 29 in the bottom of Venturi tube 27, this drainpipe 29 is provided with draining valve 28.Below Venturi tube 27 throat side tube wall on be provided with vent pipe 33, this vent pipe 33 is provided with first row air valve 26.Be provided with gas outlet 4 at evaporator 1 top, gas outlet 4 is provided with second row air valve 5; Bottom evaporator 1, be provided with rising pipe 31, rising pipe 31 is provided with outlet valve 32.
Vent pipe 33 also sets gradually first-class gauge 25, first tensimeter 24 and the first thermometer 23, and vent valve 26 is arranged between first-class gauge 25 and Venturi tube 27.Gas mixing pipe 12 pipeline that evaporator 3 is connected with Venturi tube 27 sets gradually Gas mixing valve 13, second thermometer 14, second gauge 15 and the second tensimeter 16.The end of water inlet pipe 21 is provided with pressure regulating pump 22, and water inlet pipe 21 pipeline be connected with pressure regulating pump 22 in Venturi tube 27 sets gradually water intaking valve 17, the 3rd flowmeter 18, the 3rd tensimeter 19 and the 3rd thermometer 20.The end of water inlet pipe 7 is provided with blower fan 6, the pipeline between blower fan 6 and air valve 11 is provided with successively the 4th thermometer 8, the 4th tensimeter 9 and the 4th flowmeter 10.
The experimental provision of employing cavitation effect strengthening steam-condensation of the present invention, during use:
Before work, second row air valve 5 and outlet valve 32 are closed, power supply 1 is connected, for evaporator 3 is energized, make the hot water heating of evaporator 3 inside to generation steam.Then, opened by blower fan 6, outside air is sucked, and is fed to together in Venturi tube 27 in company with steam.Meanwhile, Venturi tube 27 extracts tap water, make it be fed in Venturi tube 27 with certain flow rate and pressure, spray from top to bottom in the middle part of larynx section, containing vapor stream and the chilled water mixing of inconduc, directly there is condensation in contact, regulate the diameter of chilled water flow velocity and throat, make chilled water, in throat, cavitation occur, liquid stream can spread broken by the minute bubbles produced, increase the contact area of steam and water, promote condensation.On the right side of Venturi tube 27, being provided with vent pipe 33, for being discharged by residual gas, by the temperature of mensurated gas composition, pressure and flow, steam-condensation amount can being obtained.By regulating the parameter of Venturi tube larynx section size and fluid media (medium), can facilitate in the middle part of Venturi tube larynx section and cavitation occurs, the available high-speed camera of power of cavitation phenomenon is observed.
Claims (9)
1. one kind adopts cavitation effect to strengthen the series of vapor condensation experiments device containing inconduc, it is characterized in that, comprise evaporator (3) and Venturi tube (27), evaporator (3) is connected by mixing tube (12) with Venturi tube (27), and mixing tube (12) is provided with blast pipe (7); Being provided with water inlet pipe (21) at Venturi tube (27) top, being provided with the high-speed camera (30) for gathering cavitation phenomenon in Venturi tube (27) throat side.
2. employing cavitation effect strengthening according to claim 1 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, be provided with drainpipe (29) in the bottom of Venturi tube (27), this drainpipe (29) is provided with draining valve (28).
3. employing cavitation effect strengthening according to claim 1 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, below Venturi tube (27) throat side tube wall on be provided with vent pipe (33), this vent pipe (33) is provided with first row air valve (26).
4. employing cavitation effect strengthening according to claim 3 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, vent pipe (33) also sets gradually first-class gauge (25), the first tensimeter (24) and the first thermometer (23), and vent valve (26) is arranged between first-class gauge (25) and Venturi tube (27).
5. employing cavitation effect strengthening according to claim 4 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, gas mixing pipe (12) pipeline that evaporator (3) is connected with Venturi tube (27) sets gradually Gas mixing valve (13), the second thermometer (14), second gauge (15) and the second tensimeter (16).
6. employing cavitation effect strengthening according to claim 5 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, the end of water inlet pipe (21) is provided with pressure regulating pump (22), and water inlet pipe (21) pipeline be connected with pressure regulating pump (22) in Venturi tube (27) sets gradually water intaking valve (17), the 3rd flowmeter (18), the 3rd tensimeter (19) and the 3rd thermometer (20).
7. employing cavitation effect strengthening according to claim 6 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, blast pipe (7) is provided with air valve (11), the end of water inlet pipe (7) is provided with blower fan (6), the pipeline between blower fan (6) and air valve (11) is provided with successively the 4th thermometer (8), the 4th tensimeter (9) and the 4th flowmeter (10).
8. employing cavitation effect strengthening according to claim 1 is containing the series of vapor condensation experiments device of inconduc, it is characterized in that, be provided with gas outlet (4) at evaporator (1) top, gas outlet (4) is provided with second row air valve (5); Be provided with rising pipe (31) in evaporator (1) bottom, rising pipe (31) is provided with outlet valve (32).
9. employing cavitation effect strengthening according to claim 1 is containing the series of vapor condensation experiments device of inconduc, and it is characterized in that, described evaporator (3) is connected with power supply (1) by electric wire (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848946.8A CN105352994B (en) | 2015-11-27 | 2015-11-27 | It is a kind of that the series of vapor condensation experiments device containing on-condensible gas is strengthened using cavitation effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510848946.8A CN105352994B (en) | 2015-11-27 | 2015-11-27 | It is a kind of that the series of vapor condensation experiments device containing on-condensible gas is strengthened using cavitation effect |
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| Publication Number | Publication Date |
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| CN105352994A true CN105352994A (en) | 2016-02-24 |
| CN105352994B CN105352994B (en) | 2018-12-07 |
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| CN201510848946.8A Active CN105352994B (en) | 2015-11-27 | 2015-11-27 | It is a kind of that the series of vapor condensation experiments device containing on-condensible gas is strengthened using cavitation effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063932A (en) * | 2017-03-01 | 2017-08-18 | 榆林学院 | It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient |
| CN107986388A (en) * | 2017-12-30 | 2018-05-04 | 中国科学院声学研究所 | A kind of water treatment facilities, system and method for treating water |
| CN109534587A (en) * | 2019-01-28 | 2019-03-29 | 山东省环境规划研究院 | The total system of dyeing used water difficult to degradate with high salt |
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| CN203551271U (en) * | 2013-10-31 | 2014-04-16 | 榆林学院 | Non-condensable gas drainage rate experimental measuring device |
| CN104329951A (en) * | 2014-10-29 | 2015-02-04 | 榆林学院 | Device using non-condensable gas flow to strengthen condensation and heat exchange outside horizontal pipe |
| CN104501615A (en) * | 2014-12-17 | 2015-04-08 | 榆林学院 | Device for discharging non-condensable gas from condensation segment by means of venturi effect |
| CN205157478U (en) * | 2015-11-27 | 2016-04-13 | 榆林学院 | Experimental device for adopt cavitation effect to reinforce steam condensate |
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2015
- 2015-11-27 CN CN201510848946.8A patent/CN105352994B/en active Active
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| JPH08145918A (en) * | 1994-11-21 | 1996-06-07 | Seiko Instr Inc | Humidity control type equipment for thermal analysis |
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| CN104329951A (en) * | 2014-10-29 | 2015-02-04 | 榆林学院 | Device using non-condensable gas flow to strengthen condensation and heat exchange outside horizontal pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063932A (en) * | 2017-03-01 | 2017-08-18 | 榆林学院 | It is a kind of to observe the device that drop is migrated under Venturi tube pressure drop gradient |
| CN107986388A (en) * | 2017-12-30 | 2018-05-04 | 中国科学院声学研究所 | A kind of water treatment facilities, system and method for treating water |
| CN107986388B (en) * | 2017-12-30 | 2023-07-07 | 中国科学院声学研究所 | Water treatment device, system and water treatment method |
| CN109534587A (en) * | 2019-01-28 | 2019-03-29 | 山东省环境规划研究院 | The total system of dyeing used water difficult to degradate with high salt |
| CN109534587B (en) * | 2019-01-28 | 2023-08-29 | 山东省生态环境规划研究院 | Comprehensive treatment system for high-salt degradation-resistant wastewater in printing and dyeing industry |
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| CN105352994B (en) | 2018-12-07 |
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