CN102418953B - Household negative-pressure steam heating system - Google Patents
Household negative-pressure steam heating system Download PDFInfo
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- CN102418953B CN102418953B CN201110408746.2A CN201110408746A CN102418953B CN 102418953 B CN102418953 B CN 102418953B CN 201110408746 A CN201110408746 A CN 201110408746A CN 102418953 B CN102418953 B CN 102418953B
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- liquid separator
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The invention discloses a household negative-pressure steam heating system. The system comprises a fuel gas heater, a bubble pump lifting pipe, a steam-liquid separator, a heat exchanger, a liquid collector, a U-shaped bending pipe, an electric control valve and a steam ejector. In the system, working medium circulation power is provided by utilizing the thermosiphon action of the bubble pump lifting pipe, a necessary circulation pump in the conventional household hot water heating system is saved, and electric energy is saved; by vaporizing water in vacuum at low temperature, the heat exchange temperature difference of the fuel gas heater is increased, the efficiency of the fuel gas heater is improved, and fuel is saved; by utilizing the phase change condensation heat exchange of water vapor, the efficiency of a steam-air heat exchanger is improved, the heat exchange area is reduced, and the miniaturization of the steam-air heat exchanger is realized; and the steam ejector replaces a vacuum pump to ensure the stable and reliable operation of the system. Compared with a household hot water heating system, the system has no moving part, does not consume electric energy, saves fuel gas, and has wide application prospect.
Description
Technical field
The present invention relates to steam heating system, relate in particular to a kind of family formula negative pressure steam heating system.
Background technology
What Xia Redong cryogenic region house mainly adopted is electric heating form, and its shortcoming is not energy-conservation and comfortableness is poor.In order to improve indoor thermal comfort in winter, the most common way is to replace electric heating mode with steam heating mode or hot water heating mode.The working media of steam heating mode is water vapour, water vapour specific latent heat is saved greatly conveying energy consumption, and water vapour phase-change heat-exchange and reduce radiator area, but traditional steam heating system has, and vapor (steam) temperature is high, saturation pressure is high, energy quality high, there is the problems such as energy consumption is high, potential safety hazard, steam leakage, maintenance management difficulty, be not therefore suitable for average family residence heating; The working media of hot-water heating system is liquid water, system pressure is less, temperature is lower, but aqueous water specific heat is little, increase conveying energy consumption, also because sensible heat transfer increases heat exchange area, in addition, be subject to home dwelling limitation in height, gravity circulating hot water heating system is also difficult in home dwelling application, and therefore, existing family formula heating system adopts pump to drive hot water system more, so not only need to consume electric energy, also may bring noise aspect problem.
Summary of the invention
A kind of family formula negative pressure steam heating system that utilizes airlift pump to provide driving force, water at low temperature steam phase transforming to discharge a large amount of condensation heat is provided.
For achieving the above object, the present invention adopts following technical scheme: a kind of family formula negative pressure steam heating system, comprises combustion heater, airlift pump riser, vapour liquid separator, heat exchanger, liquid trap, U-bend, motor-operated control valve, steam ejector; Described combustion heater outlet is connected with the import of airlift pump riser, the outlet of airlift pump riser is inserted in vapour liquid separator, the steam outlet of vapour liquid separator is connected with heat exchanger import, the liquid phase water outlet of vapour liquid separator converges with liquid trap import and is connected with the condensate water outlet of heat exchanger, and liquid trap outlet, U-bend, electronic supplying valve, combustion heater import connect successively; Described vapour liquid separator also arranges two other steam (vapor) outlet, the outlet of vapour liquid separator overhead vapor is connected with the working steam entrance of steam ejector, vapour liquid separator side steam (vapor) outlet is arranged on the above position of liquid level in gas-liquid separator, vapour liquid separator side steam (vapor) outlet is connected with steam ejector ejection gas entrance through choke valve, and steam ejector mixed gas outlet is connected with electric check valve.
Described vapour liquid separator is established pressure sensor, and the electrical signal of pressure sensor is connected with controller, and controller is also connected with the electrical signal line of timer, motor-operated control valve and electric check valve.
Described heat exchanger is steel radiator, fan coil or radiant panel, and the condensate water outlet that the steam inlet of described heat exchanger is arranged on heat exchanger top, heat exchanger is arranged on heat exchanger bottom, and condensate water relies on Action of Gravity Field to flow from top to bottom.
The working media that described system adopts is water or the water vapour of 10 ℃～100 ℃ of temperature, absolute pressure 1.2kPa～101.4kPa.
The small steam bubble that combustion heater heating water of the present invention produces is combined with major diameter steam bubble and is formed steam water interface, steam water interface enters in airlift pump riser, utilize bubble floating lift to drive the liquid of bubble top upwards to flow along riser, thereby liquid-vapor mixture is admitted in vapour liquid separator, the liquid level position that airlift pump leg outlet must surpass vapour liquid separator flows backwards to prevent liquid.
The present invention requires to arrange at least one airlift pump riser between combustion heater and vapour liquid separator, rounded or the oval-shaped cross sectional shape of steam bubble pump riser, to reduce fluid flow resistance, maintain bubble spherical form, to avoid bubble to break at flow process.
The present invention establishes U-bend and solves the vent plug problem that hot water return pipeline section may occur between liquid trap and motor-operated control valve, increases system reliability.
The invention has the advantages that and utilize airlift pump riser thermosyphon action that working media circulation power is provided, save existing family formula hot water system the circulating pump that must arrange, save electric energy; Utilize water under vacuum lower temperature conditions, to vaporize to increase combustion heater heat transfer temperature difference, improve combustion heater efficiency, fuel saving; Utilize water vapour phase transformation condensing heat-exchange to improve steam-air heat exchanger efficiency, reduce heat exchange area, realize the miniaturization of steam-air heat exchanger.With steam ejector, replace vavuum pump to guarantee system stability reliably working.Compare with family formula hot water system, this system movement-less part, does not consume electric energy, saves combustion gas, has a extensive future.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
The specific embodiment
If Fig. 1 is family of the present invention formula negative pressure steam heating system, the arrow in Fig. 1 represents to connect between system each several part ducted direction of flow.The working media that system adopts is water or the water vapour of 10 ℃～100 ℃ of temperature, absolute pressure 1.2kPa～101.4kPa.
This system comprises combustion heater 1, airlift pump riser 2, vapour liquid separator 3, heat exchanger 4, liquid trap 5, U-bend 6, motor-operated control valve 11, steam ejector 8; Described combustion heater 1 outlet is connected with 2 imports of airlift pump riser, the outlet of airlift pump riser 2 is inserted in vapour liquid separator 3, the steam outlet of vapour liquid separator 3 is connected with heat exchanger 4 imports, the liquid phase water outlet of vapour liquid separator 3 converges with liquid trap 5 imports and is connected with the condensate water outlet of heat exchanger 4, and liquid trap 5 outlets, U-bend 6, electronic supplying valve 11, combustion heater 2 imports connect successively; Described vapour liquid separator 3 also arranges two other steam (vapor) outlet, vapour liquid separator 3 overhead vapor outlets are connected with the working steam entrance of steam ejector 8, vapour liquid separator 3 side steam (vapor) outlets are connected with steam ejector 8 ejection gas entrances through choke valve 12, and steam ejector 8 mixed gas outlets are connected with electric check valve 9.
Described vapour liquid separator 3 is established pressure sensor 7, and the electrical signal of pressure sensor 7 is connected with controller 10, and controller 10 is also connected with timer 13, motor-operated control valve 11 and the electrical signal line of electric check valve 9.
Described heat exchanger 4 is steel radiator, fan coil or radiant panel; The condensate water outlet that the steam inlet of described heat exchanger 4 is arranged on heat exchanger 4 tops, heat exchanger 4 is arranged on heat exchanger 4 bottoms, and condensate water relies on Action of Gravity Field to flow from top to bottom.
The present invention is comprised of the hot water and steam circulatory system, steam jet type vacuum-pumping system and their supplementary controlled system.The hot water and steam circulatory system course of work is that the interior water of combustion heater 1 is become steam water interface by combustion heater 1 heating local boiling, via steam bubble pump riser 2, deliver to vapour liquid separator 3, the water vapour flowing out from vapour liquid separator 3 enters heat exchanger 4 and carries out heat exchange with air, water vapour undergoes phase transition and condenses into water and discharge condensation heat, the interior condensate water of heat exchanger 4 relies on gravity to flow out from flow out heat exchanger 4 bottoms from top to bottom, converge with hot water from vapour liquid separator 3 and flow into liquid trap 5, hot water in liquid trap 5 U-bend 6 of successively flowing through under gravity and buoyancy lift acting in conjunction, motor-operated control valve 11, then flow back to combustion heater 1, so far complete a cyclic process, the steam jet type vacuum-pumping system course of work is to vacuumize while working under pattern when controller 10, motor-operated control valve 11 is closed, combustion heater 1 heat hot water vaporization, the interior gas pressure of vapour liquid separator 3 constantly increases, when reaching on the set high-pressure of controller 10, vapour liquid separator 3 internal pressures prescribe a time limit, electric check valve 9 is opened, vapour liquid separator 3 liquid level overhead G&W steam gases flow into choke valve 12, mist after choke valve 12 reducing pressure by regulating flows is entered steam ejector 8 by the high steam suction from vapour liquid separator 3, then the mist of steam ejector 8 outlets is discharged in atmosphere, thereby on the interior liquid level of vapour liquid separator 3, air is constantly pumped, until reach the set pumpdown time upper limit of controller 10, motor-operated control valve 11 is opened, electric check valve 9 cuts out, vacuum finishes, supplementary controlled system comprises to be controlled electric check valve 9 and motor-operated control valve 11.
The control of electric check valve 9 and motor-operated control valve 11 is set according to heat supply mode and the pattern that vacuumizes.Under heat supply mode, controller 10 sends that action electric check valve 9 cuts out, motor-operated control valve 11 is opened; Vacuumize under pattern, controller 10 sends action and first cuts out motor-operated control valve 11, when rising on set high-pressure, 7 detected pressures of the set pressure sensor of vapour liquid separator 3 prescribe a time limit, controller 10 sends action electric check valve 9 and opens, timer 13 starts timing, when the pumpdown time reaches set time upper limit, controller 10 sends 9 unlatchings of action electric check valve, motor-operated control valve 11 is closed, and the work of vacuumizing completes.
Claims (2)
1. a family formula negative pressure steam heating system, is characterized in that: comprise combustion heater, airlift pump riser, vapour liquid separator, heat exchanger, liquid trap, U-bend, motor-operated control valve, steam ejector; Described combustion heater outlet is connected with the import of airlift pump riser, the outlet of airlift pump riser is inserted in vapour liquid separator, airlift pump leg outlet must surpass the liquid level position of vapour liquid separator, the steam outlet of vapour liquid separator is connected with heat exchanger import, the liquid phase water outlet of vapour liquid separator converges with liquid trap import and is connected with the condensate water outlet of heat exchanger, and liquid trap outlet, U-bend, motor-operated control valve, combustion heater import connect successively; Described vapour liquid separator also arranges two other steam (vapor) outlet, the outlet of vapour liquid separator overhead vapor is connected with the working steam entrance of steam ejector, vapour liquid separator side steam (vapor) outlet is arranged on the above position of liquid level in vapour liquid separator, vapour liquid separator side steam (vapor) outlet is connected with steam ejector ejection gas entrance through choke valve, and steam ejector mixed gas outlet is connected with electric check valve; Described condensate water or steam temperature remain within the scope of 10 ℃～100 ℃, absolute pressure remains within the scope of 1.2kPa～101.4kPa.
2. a family claimed in claim 1 formula negative pressure steam heating system, it is characterized in that: described vapour liquid separator is established pressure sensor, the electrical signal of pressure sensor is connected with controller, and controller is also connected with the electrical signal line of timer, motor-operated control valve and electric check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408746.2A CN102418953B (en) | 2011-12-10 | 2011-12-10 | Household negative-pressure steam heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408746.2A CN102418953B (en) | 2011-12-10 | 2011-12-10 | Household negative-pressure steam heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102418953A CN102418953A (en) | 2012-04-18 |
| CN102418953B true CN102418953B (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110408746.2A Active CN102418953B (en) | 2011-12-10 | 2011-12-10 | Household negative-pressure steam heating system |
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| Country | Link |
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| CN (1) | CN102418953B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651057B (en) * | 2016-03-21 | 2017-12-19 | 中国恩菲工程技术有限公司 | Cooling system |
| CN108036396A (en) * | 2017-11-02 | 2018-05-15 | 哈尔滨理工大学 | A kind of portable domestic heating plant |
| CN108550948B (en) * | 2018-04-16 | 2020-11-24 | 河南科技大学 | Cold/heat double-circulation system for thermal management of power battery pack |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152166Y (en) * | 1993-01-05 | 1994-01-05 | 白亮显 | Household steam central heating device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6141850A (en) * | 1984-07-31 | 1986-02-28 | Hitachi Zosen Corp | Hot water generating equipment utilizing geothermal water |
| JPS63197906U (en) * | 1987-06-11 | 1988-12-20 | ||
| JPH081199B2 (en) * | 1987-12-11 | 1996-01-10 | 鹿島建設株式会社 | Liquid pusher with low boiling point medium |
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2011
- 2011-12-10 CN CN201110408746.2A patent/CN102418953B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152166Y (en) * | 1993-01-05 | 1994-01-05 | 白亮显 | Household steam central heating device |
Non-Patent Citations (3)
| Title |
|---|
| JP平1-155099A 1989.06.16 * |
| JP昭61-41850A 1986.02.28 * |
| JP昭63-197906U 1988.12.20 * |
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| CN102418953A (en) | 2012-04-18 |
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Effective date of registration: 20220916 Address after: 644303 Leigong Group (2# workshop), Kaifu Longmen Village, Changning Town, Changning County, Yibin, Sichuan Province, etc. Patentee after: Sichuan Lex fluid control equipment Co.,Ltd. Address before: 621010, No. 59, Qinglong Avenue, Fucheng District, Sichuan, Mianyang Patentee before: Southwest University of Science and Technology |
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