CN101261037A - Cylinder type gas heating stove heat flow field improvement structure - Google Patents

Cylinder type gas heating stove heat flow field improvement structure Download PDF

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Publication number
CN101261037A
CN101261037A CNA2008100364464A CN200810036446A CN101261037A CN 101261037 A CN101261037 A CN 101261037A CN A2008100364464 A CNA2008100364464 A CN A2008100364464A CN 200810036446 A CN200810036446 A CN 200810036446A CN 101261037 A CN101261037 A CN 101261037A
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China
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runner
flow field
deflector
large cylinder
heating
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CNA2008100364464A
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CN101261037B (en
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曹伟武
严平
郭韵
钱尚源
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Abstract

The invention relates to a device for heating and heating up natural gas during the process of exploitation and distribution of the natural gas. The invention relates to an improved structure for a heat flow field of a cylindrical gas heating furnace, wherein, a flow channel is respectively arranged inside four quadrants of a cross section in a large cylinder (3), and two respective flow channels on the upper side and the lower side are communicated with each other on one end of the large cylinder (3); an opening on the other end of the large cylinder (3) is respectively provided with an inlet and an outlet; the two upper flow channels are flow channels for conveying heating gas to be heated and the two lower flow channels are heating gas flow channels; a heating gas feeding flow channel (4) on the lower side is a pipe structure, and both the two upper flow channels for conveying the heating gas to be heated and a heating gas delivery flow channel (5) on the lower side are pipe bundle structures which consist of a plurality of tubules; the large cylinder (3) is filled with intermediate heating agents; and vertical guide plates are arranged along the flow channels between the upper flow channels for conveying the heating gas to be heated and the lower heating gas flow channels. By adoption of the technical proposal, the heating efficiency can be improved by approximately 3 percent.

Description

A kind of structure-improved of cylinder type gas heating stove heat flow field
(1) technical field
The present invention relates to a kind of heater, tie up to a kind of device that in natural gas extraction, the transmission ﹠ distribution process natural gas is carried out heat temperature raising especially conveying gas.
(2) background technology
The energy is the mainstay of the national economic development, is the basic guarantee that the mankind depend on for existence, and clean energy resource is again the fundamental way of harmony between man and nature development.Natural gas is that the Nature is given human important clean energy resource, and therefore, it utilizes technology to be subjected to human extensive attention.In natural gas extraction and long-distance transport process, for various reasons, must carry out heating and anti-freezing to the high-pressure natural gas of big flow, in use, when being used for large-scale plant gas, natural gas must be heated to assigned temperature, just can reach good result, in the natural gas oil gas field, gas heating furnace then commonly used adds deep fat, water, use in order to producing, living, therefore, gas heating furnace is an indispensable important equipment in the gas industry.
By retrieval, Chinese patent " a kind of novel hot-blast stove " patent No.: CN93241027.8, patent " a kind of holding furnace that the is used for middle-size and small-size experimental rig reactor " patent No.: CN200420010660.X, the open 2007-127396 " resistance-type heating furnace " of Japan's special permission, the open 2003-128426 " the semi-convection forced ventilation system with low E gas amplification nozzle " of Japan's special permission discloses some and has used gas, the heating furnace technical scheme of liquid or plastic refuse etc., though higher heating-up temperature can be provided, the efficiency of heating surface of partial devices is higher, but all is not suitable for the application to the gas heat temperature raising occasion in natural gas extraction and the long-distance conveying.
Through investigation, the gas heating stove that has heating surface and heating surface in a kind of big volume cylinder is simultaneously abroad arranged, easy to use, heat transfer efficiency is higher relatively, can reach user's requirement.Its structure is, in cylinder with certain-length and diameter, be that initial point is divided four quadrants on perpendicular to the cross section of axis with the axle center, a runner is set respectively in all quadrants, and top and below two runners separately are connected at an end of cylinder, the opening part of the other end is respectively input port and delivery outlet, two runners in top need the heated air runner for carrying, two runners in below are the heated air runner, below heated air input duct is a pipeline configuration, all the other, comprise the Pipe bundle structure that two conveyings in top needs heated air runner and below heated air delivery channel to serve as reasons many tubules form, heat-carrying agent in the middle of being full of in large cylinder and between the tube wall of four runners.
Usually during gas heating furnace work, heat the industrial natural gas that need reach technological requirement with the heat of fuel such as natural gas, wet goods burning generation.Fuel and air mix the fire tube burning that sprays into large cylinder bottom one side through burner and produce high-temperature flue gas, and smoke box folds into the smoke pipe bundle of large cylinder bottom opposite side after the fire tube flows into, after chimney upwards enters atmosphere.Because in the heat-carrying agent, so in this heating process, high-temperature flue gas passes to middle heat-carrying agent with heat by fiery barrel and smoke pipe bundle wall, middle heat-carrying agent heat absorption heated up in the middle of fire tube and smoke pipe Shu Jun were immersed in; And the industrial natural gas that needs heating flows through through a plurality of flow processs and is heated tube bank, because being heated tube bank is immersed in the middle heat-carrying agent equally, therefore under the effect of the temperature difference, middle heat-carrying agent passes to the industrial natural gas that needs heating with most of heat by the tube bank wall that is heated that is positioned at large cylinder top, middle heat-carrying agent heat release cooling; The final result of above-mentioned whole process is: the industrial natural gas that heat has heated needs heating is emitted in fuel combustion.Obviously in this process, the formation of middle heat-carrying agent diabatic process, that is the tissue of large cylinder flow field is one of important key that improves gas heating furnace efficient, the so existing abroad example application of the device of structure.
But in application, also find to exist following weak point:
A, higher because of the medium temperature of pressing close to fire tube and smoke pipe bundle wall place, therefore, will form upwelling, and near the medium temperature that is heated the tube bank is relatively low, then will form sinking, because middle heat-carrying agent does not have appropriate runner tissue, liquidates between the secondary air body, in addition, there is the temperature difference between fire tube and the smoke pipe bundle, be heated between a plurality of backhauls of tube bank and have the temperature difference, all caused the disorder of large cylinder flow field tissue, cause in the large cylinder heating inhomogeneous; B, because the flow field upper and lower temperature difference is less, and the power of free convection is also little, make the formation in effective flow field that difficulty take place, the convection heat transfer' heat-transfer by convection between large cylinder inner heating surface and the heating surface very a little less than; C, in whole flow field, also exist many flow blind angles, as large cylinder bottom etc.All of these factors taken together all makes the interior effective heat transfer flow field of large cylinder destroyed, effective utilization of heating surface and heating surface is reduced, thereby gas heating furnace efficient is reduced, and the energy consumption height is unfavorable for energy-saving and cost-reducing and environmental protection.D, in some occasion, differ hour such as heating-up temperature and delivery temperature because that the flow field in the large cylinder is close to is static, heat transfer type is near heat conduction, this is the relatively poor mode of a kind of heat transfer efficiency, and can't realize the convection heat transfer' heat-transfer by convection mode that the user wishes.
(3) summary of the invention
The structure-improved that the purpose of this invention is to provide a kind of cylinder type gas heating stove heat flow field makes heating furnace hot-fluid field energy flow swimmingly, improves the efficiency of heating surface.
Purpose of the present invention is realized by following technical scheme:
A kind of structure-improved of cylinder type gas heating stove heat flow field, be included in the large cylinder with certain-length and diameter, be initial point on perpendicular to the cross section of axis with the axle center, dividing cross section by the perpendicular quadrature line is that a runner is set respectively in four quadrants, and top and below two runners separately are connected at an end of large cylinder, the opening part of the other end is respectively input port and delivery outlet, two runners in top need the heated air runner for carrying, two runners in below are the heated air runner, it is a pipeline configuration that the below heated air is sent into runner, all the other, comprise the Pipe bundle structure of serving as reasons at smoke pipe line road that two conveyings in top need heated air runner and below heated air to send many tubules forming, heat-carrying agent in the middle of being full of in large cylinder and between the tube wall of four runners is characterized in that:
Carrying up needs between heated air runner and the below heated air runner, the setting of longshore current road be upper and lower to deflector.The deflector that the longshore current road is provided with, force the middle heat-carrying agent that has absorbed high-temperature flue gas heat in the heated air runner of below upwards to flow along the deflector direction, after conveying above the process needs the heat release of heated air runner, flow downward along the deflector opposite side, thereby changed original pure downward vertically upward naturally type of flow, eliminated the heat flow field dead angle, form an evenly heating, free convection heat flow field efficiently, also eliminated in the prior art and can't artificially control, no matter the disorderly phenomenon that causes owing to the flow field is unbalanced in the large cylinder, thereby improved heat transfer efficiency.
Described deflector is plate, and axially is divided into polylith along large cylinder.The axial length of large cylinder is longer, consider in the large cylinder in the middle of heat-carrying agent flow distribution vertically, and the rigidity of deflector, therefore, deflector is divided into polylith vertically, still is that use angle is comparatively favourable from processing and fabricating no matter.
Described deflector is the arcuation type, and axially is divided into polylith along large cylinder.In some occasion, deflector is an arc form, makes the heat flow field in the large cylinder more smooth and easy evenly, and heat-transfer effect is better.
Between upper and lower two runners on the left of described deflector is arranged on or between upper and lower two runners on right side.In some occasion, only need to be provided with the single side flow guiding plate and can obtain effect preferably, such as, when the temperature difference of upper and lower runner is big, the single side flow guiding plate can make the middle heat-carrying agent in the large cylinder form on the circular section and circulate, and can obtain after tested to add thermal effect preferably.
Described deflector respectively is provided with one between upper and lower two runners of and arranged on left and right sides correspondence.In some occasion, as above, the temperature difference of lower flow channel hour, bilateral be provided with deflector make form in the large cylinder about two eddy current inward turnings or about the heat flow field of two eddy current outward turnings, thereby obtain better heat-transfer effect.
Described deflector is connected with upper and lower runner with welding, riveted joint or bolt mode.Deflector is connected with upper and lower runner with welding, mode, and processing is simple, uses reliably, and fault is few; The bolt mode connects, and deflector is changed, maintenance, repair are convenient; The length place that the riveted joint mode connects is between between the two above-mentioned.
The upper/lower terminal of described deflector is arranged in a crossed manner, and promptly the upper end of deflector is connected the lower-left side of top runner, and the lower end is connected the upper right side of the corresponding runner in below; Or the upper end of deflector is connected the lower right side of top runner, the upper left side of corresponding runner below the lower end is connected.So cross-over configuration is easier to be mobile smoothly to one of whole generation by the part, forms a uniform heat flow field, improves heat transfer efficiency.
Beneficial effect of the present invention and advantage are:
A. the heat flow field of heat-carrying agent in the middle of passing through in the deflector structure transmitting tissue large cylinder, heat-carrying agent forms various effective free convection circulations in the middle of making, make even flow field, streamline is smooth and easy, heat exchange is abundant, thereby improve heat transfer efficiency, reduce the energy consumption of gas heating furnace.B. heat-carrying agent heat flow field in the middle of organizing in the large cylinder by deflector structure has been eliminated the interior original flow blind angle of large cylinder in the heating process, and heat-transfer surface is fully used, and has improved heat exchange efficiency.It is about 3% that heater efficiency can improve, and the economic benefit that is produced is considerable, and the present invention has very outstanding characteristics and significant superiority.C. the present invention is simple in structure, invests for a short time, and benefit is obvious, and the input of retracting device is easily promoted the use of in a short time.
(4) description of drawings
Fig. 1 is the schematic perspective view of cylinder type gas heating stove;
Fig. 2 is the prior art cylinder type gas heating stove perpendicular to the distribution map of four runners on the cross section of axis and heat flow field;
Fig. 3 is the structure-improved of heating furnace heat flow field of the present invention, on the right side between lower flow channel, the single side flow guiding plate is set, the heat flow field distribution map of the right configuration in lower-left on the deflector;
Fig. 4 is the structure-improved of heating furnace heat flow field of the present invention, on the left side between lower flow channel, the single side flow guiding plate is set, the heat flow field distribution map of a left side, bottom right configuration on the deflector;
Fig. 5 is the structure improved schematic perspective view of heating furnace heat flow field of the present invention;
Fig. 6 is the structure-improved of heating furnace heat flow field of the present invention, and deflector is the heat flow field distribution map of arcuation type configuration;
Fig. 7 is the structure-improved of heating furnace heat flow field of the present invention, between upper and lower two runners of and arranged on left and right sides correspondence a deflector is set respectively, the right side, lower-left on the deflector of left side, the heat flow field distribution map of a left side, bottom right configuration on the deflector of right side;
Fig. 8 is the structure-improved of heating furnace heat flow field of the present invention, between upper and lower two runners of and arranged on left and right sides correspondence a deflector is set respectively, a left side, bottom right on the deflector of left side, the heat flow field distribution map of the right configuration in lower-left on the deflector of right side.
Among the figure, 1. carrying needs heated air to send/send into runner, and 2. carrying needs heated air to send into/send runner, 3. large cylinder, and 4. heated air is sent into runner, and 5. heated air is sent runner, 6. deflector.
(5) specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment 1:
By shown in Figure 3, in large cylinder 3 with 2.65 meters length 1.22 rice diameters, and the axial side along large cylinder is provided with plate deflector, promptly sending into runner 4 and conveying in heated air needs heated air to send single side flow guiding plate 6 is set between the runner 2, heating surface in the large cylinder 3 and heating surface are because hot pressing and deflector effect, heat-carrying agent forms clockwise circulation heat flow field smoothly in the middle of making, and eliminates at " dead angle ", realizes augmentation of heat transfer and evenly heating.
Embodiment 2:
By shown in Figure 8, in large cylinder 3 with 2.65 meters length 1.22 rice diameters, and the axial bilateral along large cylinder is provided with plate deflector, promptly send into runner 4 and conveying needs heated air to send 2 of runners in heated air, and heated air is sent runner 5 and conveying needs heated air to send into 1 of runner, a left side, on the correspondence of right both sides, between two runners a deflector 6 is set respectively down, a left side, bottom right on deflector 6 left sides of configuration, the right side, lower-left on the right side, heating surface in the large cylinder 3 and heating surface make the heat flow field of two eddy current outward turnings about middle heat-carrying agent formation owing to hot pressing and deflector effect.

Claims (7)

1. the structure-improved of a cylinder type gas heating stove heat flow field, be included in the large cylinder with certain-length and diameter, be initial point on perpendicular to the cross section of axis with the axle center, dividing cross section by the perpendicular quadrature line is that a runner is set respectively in four quadrants, and top and below two runners separately are connected at an end of large cylinder, the opening part of the other end is respectively input port and delivery outlet, two runners in top need the heated air runner for carrying, two runners in below are the heated air runner, it is a pipeline configuration that the below heated air is sent into runner, all the other, comprise the Pipe bundle structure of serving as reasons at smoke pipe line road that two conveyings in top need heated air runner and below heated air to send many tubules forming, heat-carrying agent in the middle of being full of in large cylinder and between the tube wall of four runners is characterized in that:
Carrying up needs between heated air runner and the below heated air runner, the setting of longshore current road be upper and lower to deflector.
2. according to the structure-improved of the described heating furnace heat flow field of claim 1, it is characterized in that described deflector is plate, and axially be divided into polylith along large cylinder.
3. according to the structure-improved of the described heating furnace heat flow field of claim 1, it is characterized in that described deflector is the arcuation type, and axially be divided into polylith along large cylinder.
4. according to the structure-improved of the described heating furnace heat flow field of claim 1, it is characterized in that described deflector is arranged between upper and lower two runners in left side or between upper and lower two runners on right side.
5. according to the structure-improved of the described heating furnace heat flow field of claim 1, it is characterized in that described deflector respectively is provided with one between upper and lower two runners of and arranged on left and right sides correspondence.
6. according to the structure-improved of the described heating furnace heat flow field of claim 1, it is characterized in that described deflector is connected with upper and lower runner with welding, riveted joint or bolt mode.
7. according to the structure-improved of the described heating furnace heat flow field of claim 1, it is characterized in that the upper/lower terminal of described deflector is arranged in a crossed manner, promptly the upper end of deflector is connected the left side of top runner, and the lower end is connected the right side of the corresponding runner in below; Or the upper end of deflector is connected the right side of top runner, the left side of corresponding runner below the lower end is connected.
CN2008100364464A 2008-04-22 2008-04-22 Cylinder type gas heating stove heat flow field improvement structure Expired - Fee Related CN101261037B (en)

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Application Number Priority Date Filing Date Title
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CN101261037B CN101261037B (en) 2012-01-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109855442A (en) * 2018-12-29 2019-06-07 上海工程技术大学 A kind of anchor type guide plate structure-improved of medium property of participation radiant heating gasification installation
CN109870043A (en) * 2018-12-29 2019-06-11 上海工程技术大学 A kind of structure-improved of medium property of participation radiant heating gasification installation
CN112378952A (en) * 2020-10-29 2021-02-19 上海工程技术大学 Method and device for measuring axial heat conductivity coefficient and specific heat of cylindrical battery

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19918114C2 (en) * 1999-04-22 2002-01-03 Degussa Process and device for the production of vinyl chlorosilanes
CN2634375Y (en) * 2003-07-29 2004-08-18 盐城涂装设备有限公司 Fuel heating hot air exhanging device
CN2703227Y (en) * 2004-04-30 2005-06-01 陈攀峰 Fuel gas full-automatic air heater
CN201203267Y (en) * 2008-04-22 2009-03-04 上海工程技术大学 Flow guiding cylinder type gas heating furnace

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109855442A (en) * 2018-12-29 2019-06-07 上海工程技术大学 A kind of anchor type guide plate structure-improved of medium property of participation radiant heating gasification installation
CN109870043A (en) * 2018-12-29 2019-06-11 上海工程技术大学 A kind of structure-improved of medium property of participation radiant heating gasification installation
CN109855442B (en) * 2018-12-29 2024-02-27 上海工程技术大学 Medium participation radiation heating gasification device
CN112378952A (en) * 2020-10-29 2021-02-19 上海工程技术大学 Method and device for measuring axial heat conductivity coefficient and specific heat of cylindrical battery
CN112378952B (en) * 2020-10-29 2023-02-28 上海工程技术大学 Method and device for measuring axial heat conductivity coefficient and specific heat of cylindrical battery

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EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20080910

Assignee: SHANGHAI SIFANG BOILER GROUP ENGINEERING SYSTEM CO., LTD.

Assignor: Shanghai University of Engineering Science

Contract record no.: 2014310000126

Denomination of invention: Cylinder type gas heating stove heat flow field improvement structure

Granted publication date: 20120125

License type: Exclusive License

Record date: 20140707

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
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Granted publication date: 20120125

Termination date: 20170422