CN204268942U - A kind of heat exchange U-shaped pipe with spiral mixed flow function - Google Patents
A kind of heat exchange U-shaped pipe with spiral mixed flow function Download PDFInfo
- Publication number
- CN204268942U CN204268942U CN201420703417.XU CN201420703417U CN204268942U CN 204268942 U CN204268942 U CN 204268942U CN 201420703417 U CN201420703417 U CN 201420703417U CN 204268942 U CN204268942 U CN 204268942U
- Authority
- CN
- China
- Prior art keywords
- mixed flow
- flow sheet
- heat exchange
- spiral
- dextrorotation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of heat exchange U-shaped pipe with spiral mixed flow function, comprise body and flexible mixed flow rod, flexible mixed flow rod is sleeved in body, owing to being provided with the left-handed mixed flow sheet and dextrorotation mixed flow sheet with mixed function on the axle core of flexible mixed flow rod, when cold water with pressure is after the water inlet end press-in of body, under the effect of left-handed mixed flow sheet and dextrorotation mixed flow sheet, current in body constantly change the flow direction, so just make the water in body and the evenly synchronous heat exchange of the vapours outside body, eliminate the gradient difference of water temperature in body, improve heating efficiency, thus increase substantially the heating efficiency of the high pressure steam boiler in electricity generation system.Measure through actual tests, adopt the heating efficiency of high pressure steam boiler of the present utility model to improve 10% ~ 12% than prior art, energy-saving effect is remarkable, and economic benefit and social benefit are all fairly obvious.
Description
Technical field:
The utility model relates to the high pressure steam boiler in a kind of thermal power generation and nuclear power generating system, particularly relates to the exchange heat U-shaped pipe in high pressure steam boiler.
Background technology:
High pressure steam boiler is requisite key equipment in thermal power generation unit boiler circuit; its effect utilizes the pushing generator group Steam Heating after acting that generates electricity to enter the feedwater of boiler; the secondary realizing waste heat utilizes; thus improve the heating efficiency of whole generating set; reduce energy consumption; emissions reduction, protection of the environment.Heat exchange U-shaped pipe is the key core parts determining high-pressure feed-water heater heat exchange performance, and its structural behaviour directly has influence on the heating efficiency of steam boiler.Along with the requirement of national energy-saving reduction of discharging, protection of the environment is increased day by day; especially the thermal power generation unit that is overcritical, ultra supercritical for Large Copacity, high parameter has become the prior development direction of current thermal power generation; the efficiency of utilization of further raising high pressure steam boiler is imperative; therefore, this just has higher requirement to the exchange heat U-shaped pipe in high pressure steam boiler.
At present, exchange heat U-shaped pipe used forms by seamless steel pipe is bending, its heat exchange method is heated body by high-pressure and high-temperature steam, heat is heated the water flowed in body by body again, when carrying out heat exchange, because the water in body is along tube cavity streamlined flow, water temperature near U-shaped pipe wall body is high, and the water temperature being in body endoporus center is lower, under equal flow condition, the heat that flowing water in unit interval interior tube body is drawn does not reach maximization, and this just has influence on the heat exchange coefficient of U-shaped pipe.This is the one of the main reasons that current high pressure steam boiler heat exchange coefficient does not improve.
Given this, applicant relies on practice and the experience of being engaged in one's own profession for many years, through concentrating on studies, designs a kind of heat exchange U-shaped pipe with spiral mixed flow function.
Utility model content:
In order to improve the heat exchanger effectiveness of heat exchange U-shaped pipe further, the utility model provides a kind of heat exchange U-shaped pipe with spiral mixed flow function, it can be complete by the high-temperature steam in feed-water heater and the cold water heat exchange in seamless steel pipe, and heating efficiency is high, and energy consumption is low.
The technical scheme that the utility model is taked is as follows:
A kind of heat exchange U-shaped pipe with spiral mixed flow function, it is characterized in that: comprise body and flexible mixed flow rod, limited step hole is provided with at the water inlet end of the endoporus of body, flexible mixed flow rod is by water flowing dish, axle core, left-handed mixed flow sheet and dextrorotation mixed flow sheet composition, left-handed mixed flow sheet and dextrorotation mixed flow sheet are all arranged on axle core by spiral way vertically, one end and the water flowing dish of axle core are fixedly linked, water flowing dish is installed in limited step hole, left-handed mixed flow sheet is corresponding with the external diameter of dextrorotation mixed flow sheet and the endoporus aperture of body, the length of flexible mixed flow rod is corresponding with the length of body.
Further, left-handed mixed flow sheet and dextrorotation mixed flow sheet are continuous print distribution spiral sheet.
Further, left-handed mixed flow sheet and dextrorotation mixed flow sheet are the spiral sheet of Disjunct distribution.
Further, water flowing dish is by centring ring, more than three radial struts and collect inner ring and form, and radial strut is circumferentially equally arranged on centring ring and collects between inner ring, and the exposed junction of axle core and the inner ring that collects of water flowing dish are fixedly linked.
Further, described flexible mixed flow rod is made up of resistant to elevated temperatures enhancing nylon material.
Owing to installing flexible mixed flow rod in the endoporus of body, the axle core of flexible mixed flow rod is provided with the left-handed mixed flow sheet and dextrorotation mixed flow sheet with mixed function, when cold water with pressure is after the water inlet end press-in of body, under the effect of left-handed mixed flow sheet and dextrorotation mixed flow sheet, current in body constantly change the flow direction, current in such body just obtain abundant mixing, therefore cooling water pressure is with fully can to contact heat absorption with body, thus raising endothermic effect, when cooling water enters in the body of U-shaped seamless steel pipe, water can mixed flow in the shape of a spiral, in body, the water of core rotates along the helical blade of flexible mixed flow rod, so just make the water in body and the evenly synchronous heat exchange of the vapours outside body, eliminate the gradient difference of water temperature in body, namely the water being positioned at body central is identical with the coolant-temperature gage being positioned at body surrounding, it can absorb more heat from the vapours body, improve heating efficiency, thus increase substantially the heating efficiency of the high pressure steam boiler in electricity generation system.Measure through actual tests, adopt the heating efficiency of high pressure steam boiler of the present utility model to improve 10% ~ 12% than prior art, energy-saving effect is remarkable, and economic benefit and social benefit are all fairly obvious.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the mounting structure schematic diagram of flexible mixed flow rod at body water inlet end;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is the structural representation of water flowing dish;
Fig. 5 is the A-A sectional view in Fig. 4;
In figure: 1-body; The flexible mixed flow rod of 2-; 11-endoporus; 12-limited step hole; 21-water flowing dish; 22-axle core; The left-handed mixed flow sheet of 23-; 24-dextrorotation mixed flow sheet; 211-centring ring; The radial strut of 212-; 213-collects inner ring.
Detailed description of the invention:
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described:
Embodiment 1: a kind of heat exchange U-shaped pipe with spiral mixed flow function, as shown in Fig. 1 ~ Fig. 5, it is made up of body 1 and flexible mixed flow rod 2, limited step hole 12 is provided with at the water inlet end of the endoporus 11 of body 1, flexible mixed flow rod 2 is by water flowing dish 21, axle core 22, left-handed mixed flow sheet 23 and dextrorotation mixed flow sheet 24 form, left-handed mixed flow sheet 23 and dextrorotation mixed flow sheet 24 are all arranged on axle core 22 by spiral way vertically, described left-handed mixed flow sheet 23 and dextrorotation mixed flow sheet 24 are continuous print distribution spiral sheet, described water flowing dish 21 is by centring ring 211, three radial struts 212 and collect inner ring 213 and form, three radial struts 212 are circumferentially equally arranged on centring ring 211 and collect between inner ring 213, the exposed junction of axle core 22 with collect inner ring 213 and be fixedly linked, water flowing dish 21 is installed in limited step hole 12 by centring ring 211, the external diameter of centring ring 211 is corresponding with the aperture in limited step hole 12, left-handed mixed flow sheet 23 is corresponding with the aperture of the endoporus 11 of body 1 with the external diameter of dextrorotation mixed flow sheet 24, the length of flexible mixed flow rod 2 is corresponding with the length of body 1.
In this example, described flexible mixed flow rod 2 is made up of resistant to elevated temperatures enhancing nylon material.
Embodiment 2: difference from Example 1 is that left-handed mixed flow sheet 23 and dextrorotation mixed flow sheet 24 are the spiral sheet of Disjunct distribution.
Claims (4)
1. one kind has the heat exchange U-shaped pipe of spiral mixed flow function, it is characterized in that: comprise body (1) and flexible mixed flow rod (2), limited step hole (12) is provided with at the water inlet end of the endoporus (11) of body (1), flexible mixed flow rod (2) is by water flowing dish (21), axle core (22), left-handed mixed flow sheet (23) and dextrorotation mixed flow sheet (24) composition, left-handed mixed flow sheet (23) and dextrorotation mixed flow sheet (24) are all arranged on axle core (22) by spiral way vertically, exposed junction and the water flowing dish (21) of axle core (22) are fixedly linked, water flowing dish (21) is installed in limited step hole (12), left-handed mixed flow sheet (23) is corresponding with the external diameter of dextrorotation mixed flow sheet (24) and endoporus (11) aperture of body (1), the length of flexible mixed flow rod (2) is corresponding with the length of body (1).
2. there is the heat exchange U-shaped pipe of spiral mixed flow function according to claim 1, it is characterized in that: left-handed mixed flow sheet (23) and dextrorotation mixed flow sheet (24) are continuous print distribution spiral sheet.
3. there is the heat exchange U-shaped pipe of spiral mixed flow function according to claim 1, it is characterized in that: the spiral sheet that left-handed mixed flow sheet (23) and dextrorotation mixed flow sheet (24) are Disjunct distribution.
4. there is the heat exchange U-shaped pipe of spiral mixed flow function according to claim 1, it is characterized in that: water flowing dish (21) is by centring ring (211), more than three radial struts (212) and collect inner ring (213) and form, radial strut (212) is circumferentially equally arranged on centring ring (211) and collects between inner ring (213), and the exposed junction of axle core (22) and the inner ring (213) that collects of water flowing dish (21) are fixedly linked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703417.XU CN204268942U (en) | 2014-11-20 | 2014-11-20 | A kind of heat exchange U-shaped pipe with spiral mixed flow function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703417.XU CN204268942U (en) | 2014-11-20 | 2014-11-20 | A kind of heat exchange U-shaped pipe with spiral mixed flow function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204268942U true CN204268942U (en) | 2015-04-15 |
Family
ID=52803804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420703417.XU Expired - Fee Related CN204268942U (en) | 2014-11-20 | 2014-11-20 | A kind of heat exchange U-shaped pipe with spiral mixed flow function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204268942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016116245A1 (en) | 2016-08-31 | 2018-03-01 | Areva Gmbh | Flow element for generating a turbulent swirl flow and heat transfer device comprising a flow element |
| WO2018223296A1 (en) * | 2017-06-07 | 2018-12-13 | 南京工业大学 | Pipe-type mixer |
-
2014
- 2014-11-20 CN CN201420703417.XU patent/CN204268942U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016116245A1 (en) | 2016-08-31 | 2018-03-01 | Areva Gmbh | Flow element for generating a turbulent swirl flow and heat transfer device comprising a flow element |
| WO2018223296A1 (en) * | 2017-06-07 | 2018-12-13 | 南京工业大学 | Pipe-type mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Numerical simulation study on the heat transfer characteristics of the tube receiver of the solar thermal power tower | |
| CN103400608B (en) | A kind of Heat Discharging System of Chinese for MSR | |
| CN103594127A (en) | Energy-saving nuclear power evaporator | |
| CN104406441A (en) | Heat exchanging U-shaped pipe with spiral flow mixing function | |
| CN204268942U (en) | A kind of heat exchange U-shaped pipe with spiral mixed flow function | |
| CN209783020U (en) | Conical header structure of tower type photo-thermal power generation fused salt heat absorber | |
| CN104896556A (en) | Steam heating system utilizing off-peak electricity as energy | |
| CN202613802U (en) | High temperature heat accumulation and heat exchange device for solar thermal power generation | |
| CN201827868U (en) | Solar energy steam generating device | |
| CN203535968U (en) | Energy-saving nuclear power evaporator | |
| CN202300808U (en) | Temperature variation self-circulation generating device of liquid working medium | |
| CN202315941U (en) | Condensing cover of distilled-water producing device for laboratory | |
| CN104931286A (en) | Experimental device for studying heating surface flow and pipe wall temperature of heat absorber under changeable heat load | |
| CN203964410U (en) | A kind of solar energy photothermal converter | |
| CN201507905U (en) | A novel steam generator | |
| CN205191225U (en) | Solar energy indirect heating carries crude oil device | |
| CN205940222U (en) | Efficient water -heating exchanger | |
| CN205119437U (en) | Directly -heated type water heater | |
| CN211146944U (en) | Waste medium-deep well geothermal heat energy extraction system | |
| CN103759558A (en) | Low-temperature boiler exhaust heat utilization device | |
| CN203231691U (en) | Steam recycling device for heat exchanger steam supply system | |
| CN203719099U (en) | Residual and waste heat recycling device for coal-fired power plant | |
| CN202581890U (en) | Lower multi-cavity solar water tank with detachable heat pipe | |
| CN202676639U (en) | High temperature vacuum sun heat collecting pipe heating rod and heating rod support device | |
| CN203605311U (en) | Solar heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150930 Address after: Jintan Economic Development Zone, Jintan City, Jiangsu province 213200 Jin Wu Lu, Changzhou City, No. 88 Patentee after: JIANGSU CHANGBAO PLS STEEL TUBE CO.,LTD. Address before: South central Jintan Economic Development Zone, Jiangsu province Changzhou city two road 213200 No. 369 Patentee before: CHANGZHOU CHANGBAO JINGTE ENERGY PIPE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20211120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |