CN104501615A - Device for discharging non-condensable gas from condensation segment by means of venturi effect - Google Patents
Device for discharging non-condensable gas from condensation segment by means of venturi effect Download PDFInfo
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- CN104501615A CN104501615A CN201410787526.9A CN201410787526A CN104501615A CN 104501615 A CN104501615 A CN 104501615A CN 201410787526 A CN201410787526 A CN 201410787526A CN 104501615 A CN104501615 A CN 104501615A
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- pipe
- outer sleeve
- condensible gas
- condensation
- discharge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a device for discharging non-condensable gas from a condensation segment by means of venturi effect and belongs to the technical field of condensing equipment. The device comprises an outer sleeve; an inner condensing tube is coaxially nested in the outer sleeve; the top of the outer sleeve is provided with an opening for insertion of a steam tube; with a central axis of the steam tube as a symmetric axis, two through holes are symmetrically provided in the bottom of the outer sleeve; the central axes of the through holes have an included angle of 30 degrees with the central axis of the steam tube; two venturi tubes for discharging the non-condensable gas are disposed in the through holes, respectively. According to the device, a spray tube is used to the non-condensable gas from a condensation space, suction of the non-condensable gas causes disturbance to a liquid membrane, condensate is driven to flow out of the condensing tube, the venturi tubes create a positive pressure gradient from the condensation space to the environment, the non-condensable gas is sucked out of the condensation space and discharged to the environment, safety and environment protection are achieved, energy is saved, and efficiency is high.
Description
Technical field
The invention belongs to condenser apparatus technical field, relate to a kind of discharger of on-condensible gas, be specifically related to a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment.
Background technology
Energy-saving and emission-reduction are fundamental state policies of China, and its main application fields is industrial department, and horizontal pipe shell tube condenser is one of main heat transmission equipment of industrial department, it energy-conservation particularly important.It is primarily of cylindrical housing and horizontal tube bundle composition, and refrigerant vapour is in horizontal tube condensed exterior, and condensate liquid flows out from bottom of cylinder, and cooling water repeatedly comes and goes flowing in horizontal tube.Containing on-condensible gas in horizontal pipe shell tube condenser is one of major reason that condensation efficiency is declined, and the air accounting for 1% as mass content in water vapour can make surface coefficient of heat transfer reduce by 60%.Therefore, getting rid of on-condensible gas is the important key ensureing designed capacity.
At present, on-condensible gas floss hole is set up and is easily gathered place at on-condensible gas, if bore is too large, a large amount of working medium is run off, and bore is too little, can not discharge on-condensible gas in time, and condensation efficiency is declined; Meanwhile, the direction that on-condensible gas is overflowed from air film layer also likely hinders the diverging flow of steam, reduces the condensation number of steam.Because light on-condensible gas has buoyancy lift upwards, on-condensible gas discharges the on-condensible gas ease formed and fails to be convened for lack of a quorum and hinder the diverging flow of steam, steam is separated in liquid film surface, reduces steam-condensation amount.The normal component F of heavy on-condensible gas ease stream, namely the on-condensible gas ease flow on vertical liquid film surface is too large, forms counter-current flow, reduce the condensation number of steam by with the steam and on-condensible gas mixed flow of pouring into liquid film surface.Therefore, when on-condensible gas discharge bore and orientation were offered not at that time, on-condensible gas ease fails to be convened for lack of a quorum and weakens the diverging flow of steam, and condensation efficiency is declined, and this physical phenomenon is often designed personnel and ignores.In order to effectively discharge on-condensible gas, reducing the vapour losses amount that on-condensible gas carries, making the effective eductor condenser of the on-condensible gas in condenser, be necessary to be improved existing on-condensible gas tapping equipment.
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 device utilizing Venturi effect to discharge on-condensible gas in condensation segment, this apparatus structure arranges advantages of simple, can on-condensible gas effectively in exhaust steam space.
The present invention is achieved through the following technical solutions:
Utilize Venturi effect to discharge a device for on-condensible gas in condensation segment, comprise outer sleeve, in outer sleeve, coaxial sleeve is provided with internal condensation pipe; Offer opening at described outer sleeve top, in opening, be inserted with steam pipe, and the axes normal of steam pipe and outer sleeve; With steam pipe central axis for symmetry axis, offer two through holes at the bottom symmetrical of outer sleeve, and the central axis of through hole central axis and steam pipe being 30 ° of angles, in described two through holes, arranging one respectively for discharging the Venturi tube of on-condensible gas.
Described Venturi tube is tapering type jet pipe or pantographic jet pipe.
The mouth of pipe of described tapering type jet pipe from internal condensation pipe externally sleeve pipe reduce gradually.
The mouth of pipe of described pantographic jet pipe from internal condensation pipe externally sleeve pipe first reduce gradually and increase gradually again.
The one end of stretching out outer sleeve in Venturi tube is also provided with gas fairlead.
Described gas fairlead passes in underground piping.
In the through hole that the bottom that described Venturi tube is welded on outer sleeve is offered.
Compared with prior art, the present invention has following useful technique effect:
The device utilizing Venturi effect to discharge on-condensible gas in condensation segment disclosed by the invention, steam pipe is provided with at the top of outer sleeve, at the bottom symmetrical of outer sleeve, Venturi tube is set, the discharge of on-condensible gas in device is promoted by forming Venturi effect, when the steam carrying on-condensible gas is passed into outer sleeve from steam pipe, contact with internal condensation pipe.Owing to having passed into cooling medium in internal condensation pipe, steam is in the condensation of internal condensation tube-surface, and on-condensible gas is then trapped near the liquid film layer of condenser pipe outer surface.In condenser pipe bottom, have accumulated a large amount of on-condensible gases.When adopting the on-condensible gas in this spout discharge condensation space, the swabbing action of on-condensible gas can produce disturbance to liquid film, promote that condensed fluid row is from condenser pipe, Venturi tube the positive pressure gradient that can be formed in from condensation space to environment is set, on-condensible gas is pumped out from condensation space, and discharged in environment, safety and environmental protection, efficient energy-saving.
Further, according to the ratio of pressure near condenser pipe and environmental pressure, arranging Venturi tube is tapering type jet pipe or pantographic jet pipe, and the comparative result according to pressure near condenser pipe and environmental pressure is selected to adopt tapering type jet pipe or pantographic jet pipe.
Further, the one end of stretching out outer sleeve in Venturi tube is also provided with gas fairlead, and the on-condensible gas given off is passed in underpass by gas drainage tube, avoids scorching hot on-condensible gas to burn operating personnel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Wherein: 1 is steam pipe; 2 is outer sleeve; 3 is internal condensation pipe; 4 is Venturi tube; 5 is gas fairlead; 6 is underpass.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Embodiment 1
See Fig. 1, the present invention utilizes Venturi effect to discharge the device of on-condensible gas in condensation segment, and comprise outer sleeve 2, in outer sleeve 2, coaxial sleeve is provided with internal condensation pipe 3; Offer opening at described outer sleeve 2 top, in opening, be inserted with steam pipe 1, and the axes normal of steam pipe 1 and outer sleeve 2; With steam pipe 1 central axis for symmetry axis, two through holes are offered at the bottom symmetrical of outer sleeve 2, and the central axis of through hole central axis and steam pipe 1 is 30 ° of angles, one is arranged respectively for discharging the Venturi tube 4 of on-condensible gas in described two through holes, in the through hole that the slotting bottom being welded in outer sleeve 2 of Venturi tube 4 is offered, the one end of stretching out outer sleeve 2 in Venturi tube 4 is also provided with gas fairlead 5, and gas fairlead 5 is passed in underpass 6.
Preferably, Venturi tube 4 is tapering type jet pipe, the mouth of pipe of tapering type jet pipe from internal condensation pipe 3 externally sleeve pipe 2 reduce gradually.
Embodiment 2
With embodiment unlike, see Fig. 2, the Venturi tube of the present embodiment adopts pantographic jet pipe, the mouth of pipe of pantographic jet pipe from internal condensation pipe 3 externally sleeve pipe 2 first reduce gradually and increase gradually again.
The device utilizing Venturi effect to discharge on-condensible gas in condensation segment of the present invention, in use:
When the steam carrying on-condensible gas is passed into outer sleeve 2 from steam pipe 1, contact with internal condensation pipe 3.Owing to having passed into cooling medium in internal condensation pipe 3, steam is in the condensation of internal condensation tube-surface, and on-condensible gas is then trapped near the liquid film layer of condenser pipe outer surface.In condenser pipe bottom, have accumulated a large amount of on-condensible gases.Therefore, Venturi tube 4 should be installed herein.Used herein is a kind of tapering type (or pantographic) Venturi tube, its large footpath mouth is placed on internal condensation casing part, path mouth is placed on outer sleeve 2 bottom, and rush at environment, can be formed like this by the favorable pressure gradient of large footpath mouth to path mouth, on-condensible gas is driven in environment under this differential pressure action.
If condenser pipe adjacent bottom portions pressure is p
*, environmental pressure is p
eif,
then adopt tapering type jet pipe; If
then adopt pantographic jet pipe.
In addition, rare at condenser pipe lower steam, can avoid being carried in environment by on-condensible gas.When adopting the on-condensible gas in this Venturi tube discharge condensation space, the swabbing action of on-condensible gas can produce disturbance to liquid film, promote that condensed fluid row is from condenser pipe surface, the on-condensible gas given off is passed in underpass 6 by gas drainage tube 5, avoids scorching hot on-condensible gas to burn operating personnel.
Claims (7)
1. utilize Venturi effect to discharge a device for on-condensible gas in condensation segment, it is characterized in that, comprise outer sleeve (2), in outer sleeve (2), coaxial sleeve is provided with internal condensation pipe (3); Offer opening at described outer sleeve (2) top, in opening, be inserted with steam pipe (1), and the axes normal of steam pipe (1) and outer sleeve (2); With steam pipe (1) central axis for symmetry axis, two through holes are offered at the bottom symmetrical of outer sleeve (2), and the central axis of through hole central axis and steam pipe (1) is 30 ° of angles, in described two through holes, arrange one respectively for discharging the Venturi tube (4) of on-condensible gas.
2. a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment according to claim 1, it is characterized in that, described Venturi tube (4) is tapering type jet pipe or pantographic jet pipe.
3. a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment according to claim 2, is characterized in that, the mouth of pipe of described tapering type jet pipe from internal condensation pipe (3) externally sleeve pipe (2) reduce gradually.
4. a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment according to claim 2, it is characterized in that, the mouth of pipe of described pantographic jet pipe from internal condensation pipe (3) externally sleeve pipe (2) first reduce gradually and increase gradually again.
5. a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment according to claim 1, it is characterized in that, the one end of stretching out outer sleeve (2) in Venturi tube (4) is also provided with gas fairlead (5).
6. a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment according to claim 5, it is characterized in that, described gas fairlead (5) passes in underground piping.
7. a kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment according to claim 1, is characterized in that, in the through hole that the bottom that described Venturi tube (4) is welded on outer sleeve (2) is offered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787526.9A CN104501615B (en) | 2014-12-17 | 2014-12-17 | A kind of Venturi effect is utilized to discharge the device of on-condensible gas in condensation segment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410787526.9A CN104501615B (en) | 2014-12-17 | 2014-12-17 | A kind of Venturi effect is utilized to discharge the device of on-condensible gas in condensation segment |
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| Publication Number | Publication Date |
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| CN104501615A true CN104501615A (en) | 2015-04-08 |
| CN104501615B CN104501615B (en) | 2016-08-17 |
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| CN201410787526.9A Active CN104501615B (en) | 2014-12-17 | 2014-12-17 | A kind of Venturi effect is utilized to discharge the device of on-condensible gas in condensation segment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352994A (en) * | 2015-11-27 | 2016-02-24 | 榆林学院 | Vapor condensation experiment device intensified through cavitation effect and contained with non-condensable gas |
| CN106839798A (en) * | 2017-03-01 | 2017-06-13 | 榆林学院 | A kind of gas receiver that installs additional suppresses the device that on-condensible gas reduces condensation |
| CN111747466A (en) * | 2020-06-24 | 2020-10-09 | 武汉润德工程技术有限公司 | Self-driven seawater desalination device and method |
| CN113035393A (en) * | 2021-03-05 | 2021-06-25 | 哈尔滨工程大学 | Self-driven air extraction type passive containment heat removal system |
Citations (6)
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| JPH0926272A (en) * | 1995-07-14 | 1997-01-28 | Hitachi Ltd | Condenser |
| CN102068894A (en) * | 2010-12-07 | 2011-05-25 | 唐山天赫钛业有限公司 | Innocent treatment process and equipment for waste in refining process of titanium tetrachloride |
| WO2011095547A2 (en) * | 2010-02-04 | 2011-08-11 | Statoil Asa | Solvent and gas injection recovery process |
| CN203432388U (en) * | 2013-09-04 | 2014-02-12 | 哈尔滨锅炉厂有限责任公司 | Heat exchanger shell pass noncondensing gas side direction discharging device |
| CN103613155A (en) * | 2013-11-28 | 2014-03-05 | 青岛科技大学 | Heat pipe type low temperature two-effect sea water desalting device |
| CN204404827U (en) * | 2014-12-17 | 2015-06-17 | 榆林学院 | A kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment |
-
2014
- 2014-12-17 CN CN201410787526.9A patent/CN104501615B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0926272A (en) * | 1995-07-14 | 1997-01-28 | Hitachi Ltd | Condenser |
| WO2011095547A2 (en) * | 2010-02-04 | 2011-08-11 | Statoil Asa | Solvent and gas injection recovery process |
| CN102068894A (en) * | 2010-12-07 | 2011-05-25 | 唐山天赫钛业有限公司 | Innocent treatment process and equipment for waste in refining process of titanium tetrachloride |
| CN203432388U (en) * | 2013-09-04 | 2014-02-12 | 哈尔滨锅炉厂有限责任公司 | Heat exchanger shell pass noncondensing gas side direction discharging device |
| CN103613155A (en) * | 2013-11-28 | 2014-03-05 | 青岛科技大学 | Heat pipe type low temperature two-effect sea water desalting device |
| CN204404827U (en) * | 2014-12-17 | 2015-06-17 | 榆林学院 | A kind of device utilizing Venturi effect to discharge on-condensible gas in condensation segment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352994A (en) * | 2015-11-27 | 2016-02-24 | 榆林学院 | Vapor condensation experiment device intensified through cavitation effect and contained with non-condensable gas |
| CN106839798A (en) * | 2017-03-01 | 2017-06-13 | 榆林学院 | A kind of gas receiver that installs additional suppresses the device that on-condensible gas reduces condensation |
| CN111747466A (en) * | 2020-06-24 | 2020-10-09 | 武汉润德工程技术有限公司 | Self-driven seawater desalination device and method |
| CN111747466B (en) * | 2020-06-24 | 2022-05-10 | 武汉润德工程技术有限公司 | Self-driven seawater desalination device and method |
| CN113035393A (en) * | 2021-03-05 | 2021-06-25 | 哈尔滨工程大学 | Self-driven air extraction type passive containment heat removal system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104501615B (en) | 2016-08-17 |
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Effective date of registration: 20181214 Address after: 063000 North of Zhongshan Avenue and East of Haijing Road in Tangshan Seaport Development Zone, Hebei Province Patentee after: Tangshan Zhou Xing Science and Technology Development Co.,Ltd. Address before: 719000 No. 4 Chongwen Road, Yulin City, Shaanxi Province Patentee before: Yulin University |
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Denomination of invention: A device for discharging non condensable gas in condensation section by Venturi effect Effective date of registration: 20230621 Granted publication date: 20160817 Pledgee: Cangzhou Bank Co.,Ltd. Luanzhou Branch Pledgor: Tangshan Zhou Xing Science and Technology Development Co.,Ltd. Registration number: Y2023980045098 |