CN114526618A - Multi-flow inner sleeve spiral twisted flat tube wound tube type heat exchanger - Google Patents
Multi-flow inner sleeve spiral twisted flat tube wound tube type heat exchanger Download PDFInfo
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- CN114526618A CN114526618A CN202210231688.9A CN202210231688A CN114526618A CN 114526618 A CN114526618 A CN 114526618A CN 202210231688 A CN202210231688 A CN 202210231688A CN 114526618 A CN114526618 A CN 114526618A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F2009/0285—Other particular headers or end plates
- F28F2009/0287—Other particular headers or end plates having passages for different heat exchange media
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开一种多股流内套螺旋扭曲扁管绕管式换热器，包括圆筒体、大管板、小管板、芯筒、螺旋圆管、螺旋扭曲扁管等结构，其特征在于：设有形成壳程的圆筒体、设置在所述圆筒体内形成管程的螺旋状换热管，所述的螺旋状换热管采用双层套管结构，其中内管为螺旋扭曲扁管，外管为螺旋圆管，所述内管外壁和外管内壁之间设有形成外管流程的间隙，所述内管内形成内管流程，所述外管的两端分别连接至大管板上，所述内管两端分别穿过大管板后连接至小管板。本发明实现了内管流体与壳程流体同时与外管流体换热，使得结构紧凑，换热面积增加，并通过将内管设置为螺旋扭曲扁管，可以增强外管和内管内流体的扰动，传热效率高，泵功消耗小。
The invention discloses a multi-stream inner sleeve spirally twisted flat tube-wound heat exchanger, which includes a cylindrical body, a large tube sheet, a small tube sheet, a core tube, a spiral round tube, a spiral twisted flat tube and other structures, and is characterized in that : There is a cylindrical body forming a shell side, a helical heat exchange tube arranged in the cylindrical body to form a tube side, the helical heat exchange pipe adopts a double-layer casing structure, and the inner pipe is a spiral twisted flat tube, the outer tube is a spiral round tube, the outer wall of the inner tube and the inner wall of the outer tube are provided with a gap for forming the outer tube process, the inner tube is formed in the inner tube process, and the two ends of the outer tube are respectively connected to the large tube On the plate, the two ends of the inner tube respectively pass through the large tube plate and then connect to the small tube plate. The invention realizes that the inner tube fluid and the shell side fluid exchange heat with the outer tube fluid at the same time, so that the structure is compact and the heat exchange area is increased. , high heat transfer efficiency and low pump power consumption.
Description
技术领域technical field
本发明涉及一种多股流内套螺旋扭曲扁管绕管式换热器，属于强化换热技术领域。The invention relates to a multi-stream inner-coated helical twisted flat tube wound-tube heat exchanger, which belongs to the technical field of enhanced heat exchange.
背景技术Background technique
随着社会经济的不断增长，资源消耗量不断增大，对能源利用率提出更高的要求。换热器作为一种热交换通用设备，具有能够回收热量再利用等优点，对提高能源利用率及系统的经济性具有重要作用，广泛应用于化工、电力、冶金、动力、航空等工业中，以及物料的蒸发、冷凝、加热及冷却等过程中。With the continuous growth of social economy, the consumption of resources continues to increase, which puts forward higher requirements for energy utilization. As a general heat exchange equipment, heat exchangers have the advantages of being able to recover heat and reuse them. They play an important role in improving energy utilization and system economy. They are widely used in chemical, electric power, metallurgy, power, aviation and other industries. And in the process of evaporation, condensation, heating and cooling of materials.
换热器根据结构可分为多种类型，如管壳式换热器，板式换热器，板壳式换热器等，具有结构坚固、操作弹性大、可靠程度高、使用范围广等优点。螺旋绕管式换热器作为一种新型换热器，具有结构紧凑，耐压强度高，传热系数大等优点，近年来广泛应用于低温高压等领域。该换热器由两根同心套管绕制成螺旋状而成。两种工作流体可实现纯逆流流动，传热效率高。本发明提出一种多股流内套螺旋扭曲扁管绕管式换热器，实现了内管流体与壳程流体同时与外管流体换热，使得结构紧凑，换热面积增加，并通过将内管设置为螺旋扭曲扁管，可以增强外管和内管内流体的扰动，传热效率高，泵功消耗小。Heat exchangers can be divided into various types according to the structure, such as shell and tube heat exchangers, plate heat exchangers, plate and shell heat exchangers, etc. . As a new type of heat exchanger, the spiral wound tube heat exchanger has the advantages of compact structure, high compressive strength and large heat transfer coefficient. In recent years, it has been widely used in low temperature and high pressure fields. The heat exchanger is formed by winding two concentric sleeves into a spiral. The two working fluids can achieve pure countercurrent flow with high heat transfer efficiency. The invention proposes a multi-stream inner-sleeved helical twisted flat tube wound-tube heat exchanger, which realizes the heat exchange between the inner tube fluid and the shell side fluid and the outer tube fluid at the same time, so that the structure is compact and the heat exchange area is increased. The inner tube is set as a spiral twisted flat tube, which can enhance the disturbance of the fluid in the outer tube and the inner tube, with high heat transfer efficiency and low pump power consumption.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种能够实现多股流体换热，同时提高绕管式换热器换热效率，减少压降，操作灵便的多股流内套螺旋扭曲扁管绕管式换热器。The purpose of the present invention is to provide a multi-flow inner-sleeved helical twisted flat tube-wound heat exchanger capable of realizing heat exchange of multiple fluids, improving the heat exchange efficiency of the coiled-tube heat exchanger, reducing the pressure drop, and being flexible in operation. .
本发明采用的技术方案是：多股流内套螺旋扭曲扁管绕管式换热器主要包括圆筒体、大管管箱、小管管箱、大管板、小管板、芯筒、螺旋圆管、螺旋扭曲扁管、壳程进出口管、管程进出口管、接管，其特征在于：设有形成壳程的圆筒体、设置在所述圆筒体内形成管程的螺旋状换热管，所述的螺旋状换热管采用双层套管结构，其中内管为螺旋扭曲扁管，外管为螺旋圆管，所述内管外壁和外管内壁之间设有形成外管流程的间隙，所述内管内形成内管流程，所述外管的两端分别连接在大管板上，所述内管两端分别穿过大管板后连接至小管板。The technical scheme adopted in the present invention is as follows: the multi-stream inner sleeve spirally twisted flat tube wound tube heat exchanger mainly includes a cylindrical body, a large tube tube box, a small tube tube box, a large tube sheet, a small tube sheet, a core tube, a spiral circle The pipe, the spiral twisted flat tube, the inlet and outlet pipes of the shell side, the inlet and outlet pipes of the pipe side, and the connecting pipe are characterized in that: a cylindrical body forming the shell side and a helical heat exchange arranged in the cylinder body forming the tube side are provided. The spiral heat exchange tube adopts a double-layer casing structure, wherein the inner tube is a spiral twisted flat tube, the outer tube is a spiral round tube, and a process for forming an outer tube is arranged between the outer wall of the inner tube and the inner wall of the outer tube The inner tube forms an inner tube process, the two ends of the outer tube are respectively connected to the large tube sheet, and the two ends of the inner tube respectively pass through the large tube sheet and then connect to the small tube sheet.
所述的螺旋扭曲扁管与螺旋圆管，每一种绕管管束采用独立的管板，每个管板分别设置管箱和进出口管。For the spiral twisted flat tube and the spiral round tube, an independent tube sheet is used for each type of coiled tube bundle, and each tube sheet is respectively provided with a tube box and an inlet and outlet pipe.
每种绕管的管径大小根据实际运行工况下每个管程流体的工艺条件而定。The diameter of each coiled tube is determined according to the process conditions of each tube-side fluid under actual operating conditions.
本发明实现了内管流体与壳程流体同时与外管流体换热，使得结构紧凑，换热面积增加，并通过将内管设置为螺旋扭曲扁管，可以增强外管和内管内流体的扰动，传热效率高，泵功消耗小。The invention realizes that the fluid in the inner tube and the fluid on the shell side exchange heat with the fluid in the outer tube at the same time, so that the structure is compact and the heat exchange area is increased. , high heat transfer efficiency and low pump power consumption.
附图说明Description of drawings
图1为本发明的结构示意图Fig. 1 is the structure schematic diagram of the present invention
图2为螺旋扭曲扁管示意图Figure 2 is a schematic diagram of a helical twisted flat tube
图3为螺旋圆管示意图Figure 3 is a schematic diagram of the spiral tube
图中，1-外管流程进口管；2-螺旋扭曲扁管；3-壳程出口管；4-芯筒；5-小管板；6-内管流程进口管；7-内管流程出口管；8-小管管箱；9-大管板；10-圆筒体；11-螺旋圆管；12-壳程进口管；13-大管管箱；14-外管流程出口管；15-接管。In the figure, 1-outer tube process inlet tube; 2-spiral twisted flat tube; 3-shell side outlet tube; 4-core tube; 5-small tube sheet; 6-inner tube process inlet tube; 7-inner tube process outlet tube ;8-Small tube box; 9-Large tube sheet; 10-Cylinder body; 11-Spiral tube; 12-Shell side inlet pipe; 13-Large pipe box; 14-Outer pipe process outlet pipe; 15-Tie over .
具体实施方式Detailed ways
下面结合附图与具体实施方式对本发明作进一步详细描述。The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
本发明是这样实现的：新型多股流内套螺旋扭曲扁管绕管式换热器，包括外管流程进口管[1]、螺旋扭曲扁管[2]、壳程出口管[3]、芯筒[4]、小管板[5]、内管流程进口管[6]、内管流程出口管[7]、小管管箱[8]、大管板[9]、圆筒体[10]、螺旋圆管[11]、壳程进口管[12]、大管管箱[13]、外管流程出口管[14]、接管[15]。所述螺旋扭曲扁管由圆管压制成的扁管进行扭曲后缠绕而成，其基圆为椭圆管形，进出口截面为相同的椭圆，其管径的长轴、短轴和扭转程度可以依据不同工况制作出不同的尺寸。所述螺旋圆管内套螺旋旋扭曲扁管，螺旋圆管外壁与圆筒体内壁间的间隙形成壳程，螺旋圆管内壁与螺旋旋扭曲扁管外壁间的间隙形成外管流程，螺旋旋扭曲扁管内形成内管流程，从而实现双热源加热或双冷源冷却换热。所述芯筒通过焊接固定在两侧的大管管板上，螺旋扭曲扁管与螺旋圆管以相同的螺旋角度和螺旋中心线并列缠绕在其外围，并通过垫条和支撑结构固定位置。所述螺旋圆管的两端分别连接至大管管板，所述螺旋扭曲扁管两端分别穿过大管板后连接至小管板。所述大管板通过焊接固定在圆筒体两侧，小管板通过焊接固定在两侧的接管上。其中接管连接在大封头的侧边，与外管流程进出口呈对称分布。The present invention is realized as follows: a novel multi-stream inner-coated helical twisted flat tube wound-tube heat exchanger, including an outer tube flow inlet tube [1], a spiral twisted flat tube [2], a shell side outlet tube [3], Core tube [4], small tube sheet [5], inner tube process inlet tube [6], inner tube process outlet tube [7], small tube tube box [8], large tube sheet [9], cylinder body [10] , spiral round pipe [11], shell side inlet pipe [12], large pipe box [13], outer pipe process outlet pipe [14], take over [15]. The helical twisted flat tube is formed by twisting and winding a flat tube pressed from a round tube. Different sizes are produced according to different working conditions. The spiral circular tube is internally sheathed with a spirally twisted flat tube, the gap between the outer wall of the spiral circular tube and the inner wall of the cylinder forms a shell path, and the gap between the inner wall of the spiral circular tube and the outer wall of the spirally twisted flat tube forms an outer tube process, and the spiral twists The inner tube process is formed in the flat tube, so as to realize double heat source heating or double cold source cooling and heat exchange. The core tube is fixed on the large tube tube sheets on both sides by welding, and the spiral twisted flat tube and the spiral round tube are wound side by side on its periphery with the same spiral angle and spiral center line, and the position is fixed by the gasket and the supporting structure. The two ends of the spiral round tube are respectively connected to the large tube sheet, and the two ends of the helical twisted flat tube are respectively connected to the small tube sheet after passing through the large tube sheet. The large tube sheets are fixed on both sides of the cylindrical body by welding, and the small tube sheets are fixed on the nozzles on both sides by welding. Among them, the nozzle is connected to the side of the large head, and is symmetrically distributed with the inlet and outlet of the outer pipe.
多股流内套螺旋扭曲扁管绕管式换热器中，可以实现三股流体同时换热，即内管流程流体与壳程流体同时加热或冷却外管流程流体，换热器容积效率提高，换热效率增强。并且，内管采用螺旋扭曲扁管结构，其既是外管流程流体中的绕流元件，增强了外管流程流体的扰动程度，降低外管流程流体所消耗的泵功，同时其扭曲结构也可诱导内管流程流的二次环流的形成，从而降低管内污垢热阻、增强对边界层的扰动，进一步强化传热效率。In the multi-flow inner-sleeved spiral twisted flat tube wound-tube heat exchanger, the simultaneous heat exchange of three fluids can be realized, that is, the inner tube process fluid and the shell side fluid heat or cool the outer tube process fluid at the same time, and the volumetric efficiency of the heat exchanger is improved. The heat exchange efficiency is enhanced. In addition, the inner tube adopts a spiral twisted flat tube structure, which is not only a flow element in the process fluid of the outer tube, which enhances the disturbance degree of the process fluid in the outer tube and reduces the pump work consumed by the process fluid in the outer tube. Induce the formation of the secondary circulation of the inner tube process flow, thereby reducing the thermal resistance of the fouling in the tube, enhancing the disturbance to the boundary layer, and further enhancing the heat transfer efficiency.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210231688.9A CN114526618A (en) | 2022-03-10 | 2022-03-10 | Multi-flow inner sleeve spiral twisted flat tube wound tube type heat exchanger |
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| CN202210231688.9A CN114526618A (en) | 2022-03-10 | 2022-03-10 | Multi-flow inner sleeve spiral twisted flat tube wound tube type heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289872A (en) * | 2022-09-28 | 2022-11-04 | 安徽普泛能源技术有限公司 | Quaternary efficient heat exchanger and absorption type ice making system and application thereof |
| CN116638324A (en) * | 2023-07-27 | 2023-08-25 | 江苏金诺化工装备有限公司 | Production equipment for coil assembly of composite coil type heat exchanger |
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| CN107228581A (en) * | 2017-08-06 | 2017-10-03 | 郑州大学 | Sub-thread stream reduced pipe wound tube heat exchanger |
| CN107255422A (en) * | 2017-07-31 | 2017-10-17 | 郑州大学 | Shell side multiple flow wound tube heat exchanger |
| CN108801000A (en) * | 2018-08-17 | 2018-11-13 | 上海理工大学 | The tube side of multiple flow wound tube heat exchanger imports and exports connecting pipe structure |
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2022
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| US3915224A (en) * | 1973-06-22 | 1975-10-28 | Uhde Gmbh Friedrich | Process gas cooler |
| DE102009036070A1 (en) * | 2009-08-04 | 2011-02-17 | Eichenauer Heizelemente Gmbh & Co. Kg | Liquid heating device for use in coffee machine, has tubular heating elements or heating cartridges connected with one another in lengthwise manner, where liquid-carrying pipe is simultaneously wound around heating elements or cartridges |
| CN102032816A (en) * | 2010-11-23 | 2011-04-27 | Tcl空调器(中山)有限公司 | Heat exchanger |
| CN104359335A (en) * | 2014-11-05 | 2015-02-18 | 镇海石化建安工程有限公司 | Novel multi-strand flow heat exchanger |
| CN105823348A (en) * | 2016-05-19 | 2016-08-03 | 郑州大学 | Double-flow mixed tube bundle shell and tube heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289872A (en) * | 2022-09-28 | 2022-11-04 | 安徽普泛能源技术有限公司 | Quaternary efficient heat exchanger and absorption type ice making system and application thereof |
| CN115289872B (en) * | 2022-09-28 | 2023-02-07 | 安徽普泛能源技术有限公司 | Quaternary efficient heat exchanger and absorption type ice making system and application thereof |
| CN116638324A (en) * | 2023-07-27 | 2023-08-25 | 江苏金诺化工装备有限公司 | Production equipment for coil assembly of composite coil type heat exchanger |
| CN116638324B (en) * | 2023-07-27 | 2023-09-19 | 江苏金诺化工装备有限公司 | Production equipment for coil assembly of composite coil type heat exchanger |
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Application publication date: 20220524 |