CN104315293A - Heat storage insulation pipe - Google Patents
Heat storage insulation pipe Download PDFInfo
- Publication number
- CN104315293A CN104315293A CN201410454604.3A CN201410454604A CN104315293A CN 104315293 A CN104315293 A CN 104315293A CN 201410454604 A CN201410454604 A CN 201410454604A CN 104315293 A CN104315293 A CN 104315293A
- Authority
- CN
- China
- Prior art keywords
- steam
- heat
- pipe
- temperature
- heat storage
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses a heat storage insulation pipe which comprises a heat insulation material layer which is arranged outside a steam pipe, and is characterized in that a solid-liquid or solid-solid phase change heat storage material is arranged between the steam pipe and the heat insulation material layer; the phase change temperature of the phase change heat storage material is slightly higher than the saturation temperature of working steam and is lower than the highest temperature of the working steam; when the temperature of the working steam is higher or lower than the phase change temperature, the heat storage material absorbs heat from or releases heat to the working steam through the steam pipe to implement phase change, so as to keep the working steam in the steam pipe in a superheated state. Compared with the prior art, the heat storage insulation pipe reduces or avoids condensed water which is generated from steam in the pipe, and effectively reduces the discharge and heat loss of the condensed water, so as to further reduce the operating cost of a heating power pipe network; the heat storage insulation pipe is simple in structure, and convenient to manufacture and mount, therefore, the heat storage insulation pipe is an energy-saving emission-reducing measure having promotion and application values, and the safe operation and economic benefit of the pipe network are improved.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, especially a kind of heat storing and heat preserving pipe for heat distribution pipe network.
Background technique
Duo You industrial park and be the supporting central heating network in industrial park around modern city, thermoelectricity plant as thermal source by the enterprise delivering vapor of pipe network to industry park.What thermoelectricity plant sent is superheated vapor, and in heat supply network, steam flow depends on customer-side, and the phenomenon derived from thus is that in net on daytime, flow is many, and night, steam flow was few, even seldom.Enter the vapor (steam) temperature of heat supply network usually at 200 ~ 300 DEG C, very large drop is had, although heat distribution pipeline all makes isothermal holding, under sizable action of thermal difference with ambient temperature, pipeline still will scatter and disappear considerable heat, and pipe network dispersed heat comes from steam in pipe.Steam dispels the heat, and the heat content of steam reduces, and vapor (steam) temperature also reduces, and when vapor (steam) temperature reaches capacity temperature, steam becomes saturated vapour.After this, the steam release latent heat of vaporization maintains pipeline and continues radiation processes, and the steam after the release latent heat of vaporization is transformed into water.In pipe network, condensed water is useless to user, also unfavorable to the safe operation of pipe network, must be discharged to outside pipe.
The heat distribution pipe network of prior art, the discharge of condensed water causes the additional heat of 30 ~ 40% to lose, and has a strong impact on the economic benefit of pipe network, also can cause thermo-pollution to environment.
Summary of the invention
The object of the invention is a kind of heat storing and heat preserving pipe designed for the deficiencies in the prior art, between steam tube and thermal insulating material, phase change heat storage material is set, when the vapor (steam) temperature in pipe network is higher or lower than the phase transition temperature of heat-accumulating material, heat-accumulating material is absorbed heat from steam by steam tube or release heat undergoing phase transition, make steam can keep superheat state always, steam is effectively avoided to produce condensed water in the duct, reduce and even avoid the discharge of condensed water, reduce heat-energy losses and the operating cost of heat distribution pipe network further.
The object of the present invention is achieved like this: a kind of heat storing and heat preserving pipe, comprises the adiabator layer be arranged on outside steam tube, is characterized in the heat-accumulating material being provided with solid-liquid or solid/solid phase change between steam tube and adiabator layer; The phase transition temperature of described phase change heat storage material a little more than working steam saturation temperature and lower than the maximum temperature of working steam, when the temperature of working steam is higher or lower than phase transition temperature, heat-accumulating material is absorbed from working steam by steam tube or release heat undergoing phase transition, and makes the working steam in steam tube keep superheat state.
The present invention compared with prior art has minimizing or avoids steam to produce condensed water in the duct, the discharge of effective minimizing condensed water and heat-energy losses, the operating cost of further reduction heat distribution pipe network, structure is simple, make and easy for installation, be a kind of energy-saving and emission-reduction measure having very much promotion and application to be worth, improve safe operation and the economic benefit of pipe network.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A schematic cross-section of Fig. 1;
Fig. 3 is the invention process illustration;
Fig. 4 is the B-B schematic cross-section of Fig. 3.
Embodiment
Embodiment 1
Accompanying drawings 1 ~ accompanying drawing 2, the present invention is made up of steam tube 1, heat-accumulating material 2 and adiabator layer 3, is provided with the heat-accumulating material 2 that solid-liquid or solid/solid phase become between described steam tube 1 and adiabator layer 3; The phase transition temperature of described phase change heat storage material 2 a little more than working steam saturation temperature and lower than the maximum temperature of working steam, when the temperature of working steam is higher or lower than phase transition temperature, heat-accumulating material 2 is absorbed from working steam by steam tube 1 or release heat undergoing phase transition, and makes the working steam in steam tube 1 keep superheat state.
Embodiment 2
Accompanying drawings 3 ~ accompanying drawing 4, the present invention is made up of steam tube 1, heat-accumulating material 2, adiabator layer 3 and sleeve pipe 4, described steam tube 1 is arranged in sleeve pipe 4, the heat-accumulating material 2 that material is pentaerythritol (PE) is filled between sleeve pipe 4 and steam tube 1, then sleeve pipe about 4 two ends are shut by shrouding 5, make sleeve pipe 4 and steam tube 1 form a closed accumulation of heat space.When pipe network is started working, when a large amount of steam flows through steam tube 1, steam transfers heat to the PE heat-accumulating material 2 be arranged between steam tube 1 and adiabator layer 3 by steam tube 1, when PE temperature reaches 183 DEG C, there is solid-solid phase change in PE, this one-phase PE material absorbs a large amount of heat energy, and PE material solid-solid phase change terminates, and PE material temperature rises again.When PE material temperature is raised to 261 DEG C, PE material continues heat absorption, and solid-liquid phase change occurs at 261 DEG C of temperature.When PE material solid-after liquid phase become, PE material continues heat absorption and also again heats up again, and so far, the heat-accumulating process of PE material terminates.When the vapor (steam) temperature in steam tube 1 declines, manage outer PE material temperature and synchronously declines, drop to until PE material temperature consolidate-liquid phase change temperature time, there is the change of liquid-solid phase in heat-accumulating material 2.Phase transformation terminates front PE material temperature and remains unchanged, and the temperature that the vapor (steam) temperature now in pipe equals PE material also remains unchanged.Phase transformation terminates rear heat-accumulating material 2 and continues through adiabator layer 3 to heat release outside pipe, and temperature restarts to decline, and the vapor (steam) temperature in steam tube 1 also starts to decline.When reaching PE material solid-solid phase change temperature, PE material temperature keeps constant again, the phase transition temperature that the steam now in steam tube 1 operates in PE material keeps stable.The material of above-mentioned heat-accumulating material 2 and thickness, then according to ducted vapor (steam) temperature, pressure and flow choose reasonable, namely can avoid steam to produce condensed water in the duct.
Using vapour peak period, the unit time is large by the steam flow of certain length pipeline section, and it is few that unit mass steam loses heat, and therefore this period vapor (steam) temperature is high.When the vapor (steam) temperature in steam tube 1 exceeds the phase transition temperature of heat-accumulating material 2, now heat-accumulating material 2 absorbs heat and is transformed from the solidified state into liquid state or solid-state by the another kind of structure of a kind of solid state transformed one-tenth.When the steam flow in steam tube 1 declines, vapor phase increases heat radiation, and now vapor (steam) temperature declines.When vapor (steam) temperature drops to the phase transition temperature of heat-accumulating material 2, heat-accumulating material 2 starts phase transformation and continues to release heat outside pipe, but temperature remains unchanged.When the temperature difference of the steam in steam tube 1 and heat-accumulating material 2 disappears, the diabatic process between heat-accumulating material 2 and steam tube 1 also just stops, and therefore in pipe, vapor (steam) temperature no longer continues to decline.Because the phase transition temperature of heat-accumulating material 2 is higher than vapo(u)rous temperature, in pipe, steam can keep superheat state.Treat that in pipe, steam flow gos up again, vapor (steam) temperature also can improve again.Heat-accumulating material 2 just starts to absorb heat and reverse phase transformation occurs, and becomes saturated vapour like this produce water of condensation with regard to the steam that effectively prevent in steam tube 1.
More than just the present invention is further illustrated, and be not used to limit this patent, allly implements for the present invention's equivalence, within the right that all should be contained in this patent.
Claims (1)
1. a heat storing and heat preserving pipe, comprises the adiabator layer be arranged on outside steam tube, it is characterized in that the heat-accumulating material being provided with solid-liquid or solid/solid phase change between steam tube and adiabator layer; The phase transition temperature of described phase change heat storage material a little more than working steam saturation temperature and lower than the maximum temperature of working steam, when the temperature of working steam is higher or lower than phase transition temperature, heat-accumulating material is absorbed from working steam by steam tube or release heat undergoing phase transition, and makes the working steam in steam tube keep superheat state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454604.3A CN104315293A (en) | 2014-09-09 | 2014-09-09 | Heat storage insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410454604.3A CN104315293A (en) | 2014-09-09 | 2014-09-09 | Heat storage insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315293A true CN104315293A (en) | 2015-01-28 |
Family
ID=52370569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410454604.3A Pending CN104315293A (en) | 2014-09-09 | 2014-09-09 | Heat storage insulation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315293A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885089A (en) * | 2017-03-02 | 2017-06-23 | 浙江大学 | A kind of cold heat bidirectional protective device and method for jet chimney |
| CN112032474A (en) * | 2020-08-26 | 2020-12-04 | 天津市伟星新型建材有限公司 | Phase-change energy-storage type condensation-preventing composite pipeline and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10256550A1 (en) * | 2002-12-04 | 2004-06-24 | Abb Research Ltd. | Oil or gas feed connection for seabed has cylindrical core with outer and inner insulation layers and phase change heat storage material within core bore |
| CN201100490Y (en) * | 2007-08-07 | 2008-08-13 | 崔承波 | Vertical buried steam heat preservation tube |
| CN201982882U (en) * | 2011-04-04 | 2011-09-21 | 宜兴市宏业保温工程有限公司 | Thermal insulating structure of steam pipeline |
| CN202056458U (en) * | 2011-05-17 | 2011-11-30 | 王海芳 | Hot water pipe |
| WO2011161472A1 (en) * | 2010-06-26 | 2011-12-29 | Trellborg Offshore Uk Limited | Passive thermal management system for liquid pipelines |
| CN202203602U (en) * | 2011-08-12 | 2012-04-25 | 启东神农机械有限公司 | Evaporator heat insulation layer |
-
2014
- 2014-09-09 CN CN201410454604.3A patent/CN104315293A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10256550A1 (en) * | 2002-12-04 | 2004-06-24 | Abb Research Ltd. | Oil or gas feed connection for seabed has cylindrical core with outer and inner insulation layers and phase change heat storage material within core bore |
| CN201100490Y (en) * | 2007-08-07 | 2008-08-13 | 崔承波 | Vertical buried steam heat preservation tube |
| WO2011161472A1 (en) * | 2010-06-26 | 2011-12-29 | Trellborg Offshore Uk Limited | Passive thermal management system for liquid pipelines |
| CN201982882U (en) * | 2011-04-04 | 2011-09-21 | 宜兴市宏业保温工程有限公司 | Thermal insulating structure of steam pipeline |
| CN202056458U (en) * | 2011-05-17 | 2011-11-30 | 王海芳 | Hot water pipe |
| CN202203602U (en) * | 2011-08-12 | 2012-04-25 | 启东神农机械有限公司 | Evaporator heat insulation layer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885089A (en) * | 2017-03-02 | 2017-06-23 | 浙江大学 | A kind of cold heat bidirectional protective device and method for jet chimney |
| CN112032474A (en) * | 2020-08-26 | 2020-12-04 | 天津市伟星新型建材有限公司 | Phase-change energy-storage type condensation-preventing composite pipeline and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104720113B (en) | One kind heats the tobacco product that do not burn | |
| MX355497B (en) | Producing heating using working fluids comprising z 1,1,1,4,4,4-hexafluoro-2-butene. | |
| Ong et al. | Thermal resistance of a thermosyphon filled with R410A operating at low evaporator temperature | |
| MX2014005187A (en) | Use of compositions comprising 1,1,1,2,3-pentafluoropropane and optionally z-1,1,1,4,4,4-hexafluoro-2-butene in high temperature heat pumps. | |
| CN103525373A (en) | Composite amorphous phase-change heat storage material and preparation method thereof | |
| WO2017083598A3 (en) | Phase change and/or reactive materials for energy storage/release, including in solar enhanced material recovery, and associated systems and methods | |
| CN104315293A (en) | Heat storage insulation pipe | |
| CN110145951B (en) | Multipurpose composite high-temperature heat pipe | |
| CN205156702U (en) | Electrodeless heat pipe exchanger structure of modified phase transition | |
| CN208620621U (en) | A kind of PTC device quickly heated | |
| CN203336829U (en) | Novel scaling-preventing air source heat pump heat exchanger | |
| CN203309511U (en) | Gas cylinder heating and humidifying device for dimethyl ether fuel gas heating stove | |
| CN205536674U (en) | Heat pump set who prevents frostbite and defrost | |
| CN205710637U (en) | A kind of LNG system of processing and knockout drum thereof | |
| CN204678710U (en) | A kind of solar water heater | |
| EP2808640A3 (en) | Energy storage | |
| CN208107446U (en) | The attemperator of aerosol producer | |
| CN104605738B (en) | A kind of drinker hot guard system using heat of compressor | |
| CN204141559U (en) | A kind of steam production equipment | |
| CN204064065U (en) | A kind of heat pipe-type phase change thermal storage heat exchanger | |
| CN204064066U (en) | A kind of heat pipe-type phase-change thermal storage heat exchanger | |
| CN209726302U (en) | A kind of condensate vapourizing unit | |
| RU90888U1 (en) | HEAT PIPE | |
| CN204678724U (en) | A kind of regenerative apparatus for solar water heater | |
| Sejas et al. | A Look at How Sea Ice Loss Exacerbates Artic Warming and Dictates Its Seasonal Pattern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |