CN2186904Y - Automatic descaling disturbing flow tube heat exchanger and electrothermal appliance - Google Patents
Automatic descaling disturbing flow tube heat exchanger and electrothermal appliance Download PDFInfo
- Publication number
- CN2186904Y CN2186904Y CN 94204736 CN94204736U CN2186904Y CN 2186904 Y CN2186904 Y CN 2186904Y CN 94204736 CN94204736 CN 94204736 CN 94204736 U CN94204736 U CN 94204736U CN 2186904 Y CN2186904 Y CN 2186904Y
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- pipe
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Abstract
The utility model discloses an automatic descaling flow disturbing tube heat exchanger and electrothermal appliance, belonging to heat exchange and heat transfer equipment. The basic element heat exchange tube adopts new high efficiency 'heat-exchanger with automatic mechanical scale-removing', the automatic descaling and flow disturbing of the inner and outer sides of the tube can be realized, the heat transfer coefficient is consequently enhanced, the energy saved, the consumption is reduced, and lifelong high-heat effect is maintained. Particularly, the shell and tube heat exchanger of the utility model has the basic characteristics, and has the characteristic of using a flow disturbing barrier to replace a flow deflecting plate, and apparently, the shell pass of the heat exchanger is caused to have the advantages of high heat efficiency, low flow resistance, energy saving, shock resistance, stabilization, and long service life.
Description
The utility model belongs to heat exchange and heat-transfer equipment, particularly a kind of automation scale removal flow-disturbing pipe heat exchanger and electric heater.This pipe heat exchanger comprises shell-and-tube, bushing type, coil pipe type, heat exchange of heat pipe and air cooler; This electric heater comprises electric heating tubular type resistance heater and induced-current heater.
In the prior art of pipe heat exchanger automatic desludging, existing multiple in the dissimilar helical spring descalling technique scheme of heat exchanger tube interpolation: a class is non-rotation spring formula, as Chinese patent CN2055925(1990.04.11.) and U.S. Pat 4583585(1986.04.22.); Another kind of is the rotation spring formula, as Chinese patent CN106787(1988.10.06.), French Patent (FRP) FR013279(1988.10.10.) and FR014996(1988.11.18); Also has Chinese patent " automation scale removal heat exchanger tube " (number of patent application 93244997.2), it is the advantage that integrates preceding two class patented technologies, independently draw separately at heat exchanger tube interpolation multistage shake, the rotational oscillation spring, both overcome the former " nonrotational spring " not good enough deficiency of scale removal flow-disturbing effect, overcome again latter's " rotation spring " require rate of flow of fluid higher (＞0.65m/s), make its application be subjected to limitation (in petrochemical plant used recirculated water flow velocity general＜0.5m/s) shortcoming; Particularly this heat exchanger tube is realized the automatic desludging flow-disturbing in the pipe outside at pipe outside suit rotational oscillation spring, in existing descalling technique patent disclosure and reported in literature is not arranged as yet, so it has more remedied a defective of the prior art.
The automation scale removal of electric heater in the prior art, does not have patent disclosure and reported in literature as yet, and this is a defective of the prior art.
The purpose of this utility model is to provide a kind of " automatic desludging flow-disturbing pipe heat exchanger and electric heater ", to solve the problem of heat exchanger and electric heater automatic desludging flow-disturbing difficulty, enables to keep lifelong high heat to imitate.
The purpose of this utility model is achieved in that the heat exchanger tube of pipe heat exchanger and electric heater adopts " automation scale removal heat exchanger tube " (this patentee is the patentee), this heat exchanger tube can be realized the online automatic desludging flow-disturbing to its pipe medial and lateral, thereby the inside and outside film heat transfer coefficient of pipe is improved greatly, and can make this heat exchanger and electric heater not the reason dirt thicken with the increase of running time, cause its heat exchange efficiency to decrease.
Know-why of the present utility model, it mainly is interpolation in the heat exchanger tube of pipe heat exchanger and electric heater, a kind of helical spring of overcoat, because the characteristic factor that helical spring itself is had can make it in pipe, the outer fluid mobilization constantly produces axially down, radially with the vibration and the rotation of hoop, thereby tube wall is produced contact constantly, friction and collision, it reacts on fluid again and produces the flow-disturbing effect simultaneously, particularly (in this bottom interior heat amount is to transmit in the mode of conduction to tube wall district boundary layer laminar sublayer, and the thermal conductivity factor of fluid is all less, so the thermal resistance of convection heat transfer' heat-transfer by convection mainly concentrates in this laminar sublayer) produce strong destruction and excite turbulent flow, cause in the pipe, outer film heat transfer coefficient improves greatly, meanwhile excite turbulent flow can more effectively stop the formation of its tube wall dirt again, and helical spring continuously rotational oscillation, can the tube wall dirt that form already be given removing automatically timely and effectively again, thereby must cause this heat exchanger and electric heater to keep lifelong high heat to imitate.
That compared with the prior art the utility model has is simple in structure, be easy to processing, easy for installation, automatic desludging flow-disturbing ability strong, require that flow velocity is low, heat transfer efficiency is high, stable performance, lifelong high hot effect, long service life and new equipment manufacturing and rebuilding old equipment advantage all applicatory.
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.
Embodiment 1: the automatic desludging disturbed flow shell and tube hear exchanger.
Shell-and-tube heat exchanger comprises fixed tube sheet type, floating head type and U type tubular type three classes.
Description of drawings: accompanying drawing-the 1st, the structural representation of " the automatic desludging disturbed flow shell and tube hear exchanger " of the utility model design.
Below in conjunction with details and the working condition of accompanying drawing-1 detailed description according to the concrete device that the utility model proposes.
In the standard pipe shell heat exchanger housing (1), the tube bank of being made up of heat exchanger tube (2) and flow-disturbing grid (3) is housed, heat exchanger tube (2) adopts " automation scale removal heat exchanger tube ", at least one section rotational oscillation spring (9) that is set on the axis pull bar steel wire (10) of heat exchanger tube (2) interpolation, the postive stop baffle (8) that is fixed on the axis pull bar steel wire (10) is being arranged between each section rotational oscillation spring (9), they are not separately disturbed mutually, the two ends of axis pull bar steel wire (10) are by drawing the spring that shakes (7) to be connected with the fixed support (6) of pipe end, and they have constituted the simple mechanical system of a scale removal flow-disturbing in heat exchanger tube; At the rotational oscillation spring (4) of at least one section of the outer wall suit of heat exchanger tube (2), by flow-disturbing grid (3) with them separately and do not disturb mutually, they have constituted the simple mechanical system of a scale removal flow-disturbing in the pipe outside between each section rotational oscillation spring (4).
When two kinds of different fluids of temperature carry out heat exchange in shell-and-tube heat exchanger, the draw spring that shakes (7), rotational oscillation spring (9), (4) of its " automation scale removal heat exchanger tube " (2) interpolation, overcoat promptly produce omnibearing vibration and rotation under the fluid effect, thereby realize the automatic desludging flow-disturbing of shell-and-tube heat exchanger tube side and shell side, imitate with the lifelong high heat that keeps heat exchanger.
" the automatic desludging disturbed flow shell and tube hear exchanger " of the utility model design is except having above-mentioned employing " automation scale removal heat exchanger tube " (2) this essential characteristic, also have the characteristics that replace deflection plate with " flow-disturbing grid " (3), after shell-side fluid enters heat exchanger, by outer (interior) guide shell (5) with the end of fluid flow guiding from tube bank, do not change the outside and some flow-disturbing grid (3) and the interior fluid heat exchange of pipe of the heat exchanger tube (2) of the tube bank of flowing through with flowing to, owing to cancelled the deflection plate of shell side, make shell-side fluid that baffling no longer take place and have the dead band, the stagnant area; And the scale removal flow-disturbing effect of the outer rotational oscillation spring (4) of the pipe of " automation scale removal heat exchanger tube " (2) of adopting, and " vortex street " effect and exchange heat pipe (2) that " flow-disturbing grid " (3) produce implement 4 limit methods, must cause that this heat exchanger possesses that high heat is imitated, low flow resistance and eliminate excellent specific properties such as the damage that heat exchanger tube (2) is shaken in the flow process (under the deflection plate effect fluid flow direction and generation vertical with tube bank induce to shake make the heat exchanger tube damaged very big), inefficacy.
Embodiment 2: automatic desludging flow-disturbing double pipe heat exchanger.
Description of drawings: accompanying drawing-the 2nd, the structural representation of " the automatic desludging flow-disturbing double pipe heat exchanger " of the utility model design.
Below in conjunction with details and the working condition of accompanying drawing-2 detailed description according to the concrete device that the utility model proposes.
In the normal sleeve formula heat exchanger, inner sleeve (11) adopts " automation scale removal heat exchanger tube ", and is same with embodiment 1, all constitutes the simple mechanical system of a scale removal flow-disturbing in the medial and lateral of this inner sleeve (11).
Same interpolation is drawn the spring that shakes (7) for one section in U type ell (12), and its two ends are connected with the fixed support (6) of ell two end flanges welding, have constituted the simple mechanical system of a scale removal flow-disturbing in U type ell (12).
When two kinds of different fluids of temperature carry out heat exchange in double pipe heat exchanger, " automation scale removal heat exchanger tube " (2) interpolation that its inner sleeve (11) adopts, overcoat draw the spring that shakes (7), rotational oscillation spring (9), (4), promptly under the fluid effect, produce omnibearing vibration and rotation, thereby realize the interior tube side of double pipe heat exchanger and the automatic desludging flow-disturbing of outer tube side, keep the lifelong efficient of heat exchanger.
Embodiment 3: automatic desludging flow-disturbing coil heat exchanger.
Coil heat exchanger comprises fountain and immersion two classes.
Description of drawings: accompanying drawing-the 3rd, the structural representation of " the automatic desludging flow-disturbing spray-type coil heat exchanger " of the utility model design, accompanying drawing-the 4th, the structural representation of " the automatic desludging flow-disturbing submerged coil heat exchanger " of the utility model design.
Below in conjunction with accompanying drawing-3,4 details and the working conditions that describe in detail according to the concrete device that the utility model proposes.
The coiled pipe of standard spray formula and submerged coil heat exchanger (14) adopts " automation scale removal heat exchanger tube ", and is same with embodiment 1, all constitutes the simple mechanical system of a scale removal flow-disturbing in the medial and lateral of this coiled pipe (14).
Draw the spring that shakes (7) for one section in U type ell (12) interpolation, its two ends are connected with the fixed support (6) of ell two end flanges welding, have constituted the simple mechanical system of a scale removal flow-disturbing in U type ell (12).
When two kinds of different fluids of temperature carry out heat exchange in fountain or submerged coil heat exchanger, what its coiled pipe (14) adopted " automation scale removal heat exchanger tube " (2) interpolation, overcoat draws the spring that shakes (7), rotational oscillation spring (9), (4), promptly under the fluid effect, produce omnibearing vibration and rotation, thereby realize the automatic desludging flow-disturbing of coiled pipe (14) medial and lateral, keep the lifelong high heat of heat exchanger to imitate.
Embodiment 4: automatic desludging disturbed flow type heat exchange of heat pipe.
Description of drawings: accompanying drawing-the 5th, the structural representation of " the automatic desludging disturbed flow type heat exchange of heat pipe " of the utility model design.
Below in conjunction with details and the working condition of accompanying drawing-5 detailed description according to the concrete device that the utility model proposes.
The standard heat pipe heat exchanger mainly is made up of wind scoop (15) (cold and hot fluid passage), tube bank (upper perforated plate (16), middle tube sheet (17), lower perforated plate (18) and heat pipe (19)), loam cake (20), lower cover (21), middle tube sheet (17) is divided into hot junction (22) and cold junction (23) with housing, the sealing ring (24) that stage clip makes heat pipe (19) is housed on the upper perforated plate (16) closely contacts, reach sealing and guarantee the free wxpansion that heat pipe (19) is heated and do not destroy sealing with the sphere hole of middle tube sheet (17).
The heat pipe of this heat exchanger tube (19) adopts " automation scale removal heat exchanger tube ", with embodiment 1 with, in the inboard of this heat pipe (19), the simple mechanical system that the outside (no matter being that light pipe or finned tube are all implemented same technical measures) all constitutes a scale removal flow-disturbing.
When heat pipe (19) outer surface of hot fluid (25) by the hot junction (22) of heat exchanger, by heat pipe (19) heat is reached cold junction (23), cold fluid (26) heating that pipe is outer.Heat pipe (19) is that an inside is evacuated and fills sealed tube with small volume of fluid (water, Dowtherm, acetone), this working medium is hot junction (22) heat absorption vaporization in pipe, steam rising (10 °～90 ° of heat pipe and horizontal direction angles), in cold junction (23) condensation heat release, by means of changing, the latent heat of intraductal working medium carries out the heat exchange between cold and hot fluid, owing to be the variation of latent heat, so have the quite high capacity of heat transmission.
Produce omnibearing vibration and rotation under the effect of drawing the spring that shakes (7), rotational oscillation spring (9), (4) cold fluid (26), hot fluid (25) outside intraductal working medium and pipe of this heat pipe (19) interpolation, overcoat, thereby realized the automatic desludging flow-disturbing of heat pipe (19) medial and lateral, kept the lifelong high heat of heat exchange of heat pipe to imitate.
Embodiment 5: automatic desludging disturbed flow type air cooler.
Description of drawings: accompanying drawing-the 6th, the Pipe bundle structure schematic diagram of " the automatic desludging disturbed flow type air cooler " of the utility model design.
Below in conjunction with details and the working condition of accompanying drawing-6 detailed description according to the concrete device that the utility model proposes.
The standard null cooler is made up of tube bank, blower fan and framework.Tube bank is the major part of air cooler, and it is made up of finned tube (27), bobbin carriage (28), curb girder (29) and crossbeam (30) etc.The finned tube (27) of tube bank adopts " automation scale removal heat exchanger tube ", and is same with embodiment 1, all constitutes the simple mechanical system of a scale removal flow-disturbing in the medial and lateral of this finned tube (27).
Under the driving of cold air, pass through tube bank through air duct at blower fan, with hot fluid in the finned tube (27) when carrying out heat exchange, interpolation, be coated at finned tube (27) draw the spring that shakes (7), rotational oscillation spring (9), (4) respectively tube fluid with the pipe outer air effect under, produce omnibearing vibration and rotation, thereby realized the automatic desludging flow-disturbing of finned tube (27) medial and lateral, kept the lifelong high heat of air cooler to imitate.
Embodiment 6: automatic desludging disturbed flow type electric heater.
Description of drawings: accompanying drawing-the 7th, the structural representation of " the automatic desludging disturbed flow type electric heater " of the utility model design.
Below in conjunction with details and the working condition of accompanying drawing-7 detailed description according to the concrete device that the utility model proposes.
The electrothermal tube of standard electric heater (31) adopts " automation scale removal heat exchanger tube ", the rotational oscillation spring (4) that this electrothermal tube (31) outside suit is at least one section, by the postive stop baffle (8) that is fixed on the electrothermal tube they are not separately disturbed mutually between each section rotational oscillation spring (4), they have constituted the simple mechanical system of a scale removal flow-disturbing in electrothermal tube (31) outside.
When cold fluid is heated by electrothermal tube (31) in electric heater, the rotational oscillation spring (4) of electrothermal tube (31) overcoat is under the extratubal fluid effect, produce omnibearing vibration and rotation, thereby realized the automatic desludging flow-disturbing in the electrothermal tube outside, keep the lifelong high heat of electric heater to imitate.
Claims (5)
1, the heat-transfer pipe of a kind of " automatic desludging flow-disturbing pipe heat exchanger and electric heater " adopts " automation scale removal heat exchanger tube ", it is characterized in that heat exchanger tube interpolation, overcoat draw at least one section shake, the rotational oscillation spring, constitute the simple mechanical system of an automatic desludging flow-disturbing respectively outside in pipe.
2, " automation scale removal heat exchanger tube " according to claim 1, it is characterized in that being applied to all pipe heat exchangers, comprise shell-and-tube, bushing type, coil pipe type, heat pipe, fin (screw thread) pipe, special pipe (node, band groove, male and fomale(M﹠F), ellipse garden shape pipe), porous mass heat exchange of heat pipe and air cooler.
3, according to claim 1,2 described shell-and-tube heat exchangers (its heat exchanger tube comprises light pipe, finned tube, special pipe, porous mass pipe), it is characterized in that replacing deflection plate, be suitable for the manufacturing of new equipment and the transformation of used equipment (housing that comprises no external flow guiding cylinder) with " flow-disturbing grid ".
4, " automation scale removal heat exchanger tube " according to claim 1 is used for the electrothermal tube of electric heater, it is characterized in that the rotational oscillation spring at least one section of the outside of electrothermal tube suit, constitutes the simple mechanical system of an automatic desludging flow-disturbing in the pipe outside.
5, according to claim 1,2,3 described features, in conjunction with actual needs, implement the concrete scheme of scale removal flow-disturbing, it is characterized in that choosing the structural parameters of helical spring, tube bank, flow-disturbing grid and the guide shell of best heat exchanger tube type and interpolation thereof, overcoat (pipe medial and lateral adopt simultaneously or only get one), and, optimize heat exchange process according to fluid situations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94204736 CN2186904Y (en) | 1994-02-07 | 1994-02-07 | Automatic descaling disturbing flow tube heat exchanger and electrothermal appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94204736 CN2186904Y (en) | 1994-02-07 | 1994-02-07 | Automatic descaling disturbing flow tube heat exchanger and electrothermal appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186904Y true CN2186904Y (en) | 1995-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94204736 Expired - Fee Related CN2186904Y (en) | 1994-02-07 | 1994-02-07 | Automatic descaling disturbing flow tube heat exchanger and electrothermal appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186904Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266117B (en) * | 2003-12-10 | 2010-10-13 | 松下电器产业株式会社 | Heat exchanger and washing apparatus comprising the same |
| US7920779B2 (en) | 2003-12-10 | 2011-04-05 | Panasonic Corporation | Heat exchanger and washing apparatus comprising the same |
| CN102564212A (en) * | 2010-12-22 | 2012-07-11 | 新奥科技发展有限公司 | Method for preventing salt from blocking heat exchanger tube pass |
| CN104019575A (en) * | 2012-09-06 | 2014-09-03 | 泰山集团股份有限公司 | Ammonium hydroxide absorption refrigerating machine |
| CN105890405A (en) * | 2016-05-05 | 2016-08-24 | 无锡科技职业学院 | Double-slot type strengthened pipe type heat exchanger |
-
1994
- 1994-02-07 CN CN 94204736 patent/CN2186904Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101266117B (en) * | 2003-12-10 | 2010-10-13 | 松下电器产业株式会社 | Heat exchanger and washing apparatus comprising the same |
| CN1890510B (en) * | 2003-12-10 | 2010-12-01 | 松下电器产业株式会社 | Heat exchanger and cleaning device with the same |
| US7920779B2 (en) | 2003-12-10 | 2011-04-05 | Panasonic Corporation | Heat exchanger and washing apparatus comprising the same |
| US8180207B2 (en) | 2003-12-10 | 2012-05-15 | Panasonic Corporation | Heat exchanger |
| CN102564212A (en) * | 2010-12-22 | 2012-07-11 | 新奥科技发展有限公司 | Method for preventing salt from blocking heat exchanger tube pass |
| CN102564212B (en) * | 2010-12-22 | 2014-12-17 | 新奥科技发展有限公司 | Method for preventing salt from blocking heat exchanger tube pass |
| CN104019575A (en) * | 2012-09-06 | 2014-09-03 | 泰山集团股份有限公司 | Ammonium hydroxide absorption refrigerating machine |
| CN104019575B (en) * | 2012-09-06 | 2016-08-24 | 泰山集团股份有限公司 | Ammonia water absorption refrigerating machine |
| CN105890405A (en) * | 2016-05-05 | 2016-08-24 | 无锡科技职业学院 | Double-slot type strengthened pipe type heat exchanger |
| CN105890405B (en) * | 2016-05-05 | 2018-02-16 | 无锡科技职业学院 | A kind of dual grooved strengthens tube type heat exchangers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |