CN100416208C - High-efficiency energy-saving modular chamber type heat exchanger - Google Patents
High-efficiency energy-saving modular chamber type heat exchanger Download PDFInfo
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- CN100416208C CN100416208C CNB2005100227764A CN200510022776A CN100416208C CN 100416208 C CN100416208 C CN 100416208C CN B2005100227764 A CNB2005100227764 A CN B2005100227764A CN 200510022776 A CN200510022776 A CN 200510022776A CN 100416208 C CN100416208 C CN 100416208C
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Abstract
The present invention relates to a heat exchanger, particularly to a high-efficiency energy-saving modular chamber type heat exchanger. Through long-term actual use conditions, the defects of the existing shell-and-pipe type heat exchanger and the plate type heat exchanger, such as complicated technology, high maintenance cost, unfavorable disassembly equipment, etc. are discovered, and service life is two to three years in general. The present invention comprises a plurality of heat-exchanging devices, pipe cores in the heat-exchanging devices are in a modular structure and are connected with a cylinder through flanges, and a heat medium switch and a cooling medium switch are arranged among the heat-exchanging devices which are mutually communicated. Because the present invention applies the modular structure, the present invention is easy to disassemble, replace and maintain. Press bearing capability of the present invention is high, the loss of pressed press drop is little, and the heating efficiency of zones is high. The present invention has the advantages of good temperature-resisting performance, mature manufacture technology, large capacity which is one to three times of that of other heat exchangers, lower cost, simple repair and maintenance, good performance, long service life, the scientific technology of the present invention, convenient repair, and conveniently installed technology pipelines, and the long service life is fifteen to twenty years.
Description
Technical field
The present invention relates to heat exchanger, is a kind of energy-saving module cavity-type heat exchanger specifically.
Technical background
In the prior art, existing shell-and-tube, plate type heat exchanger are found by long-term actual behaviour in service, all have some shortcomings:
Shell-and-tube heat exchanger is that heat exchanger tube is connected with tube sheet, fixes with housing again; Its primary fluid and secondary heating agent stroke are too short, the heating agent utilization rate only is about 50%, wasted a large amount of available energys, increased expense, and the technology more complicated of shell-and-tube heat exchanger, maintenance cost height, equipment should not be dismantled, the easy crystallization of mineral ion, easily obstruction, perishable not being durable.
Plate type heat exchanger is made up of parts such as plate, pressure strip, rubber cushion, supports, because plate type heat exchanger primary fluid and secondary heating agent are one-stroke, and primary fluid and secondary heating agent stroke weak point, its heating agent utilization rate only is about 50%, wasted a large amount of available energys, increased expense, to around cause thermal pollution; And the operating pressure≤2MPa of plate type heat exchanger, operating temperature≤200 ℃, being unsuitable in easy blocking medium, the water CL ion concentration can not be too high, rubber cushion sealing place is easily leaked, its structure and material limits, service life is generally at 2-3.
Summary of the invention
The purpose of this invention is to provide a kind of modular organization and can raise the efficiency, reduce cost and dwindle space, energy-saving module cavity-type heat exchanger easy to maintenance.
For achieving the above object, the technical solution used in the present invention:
The energy-saving module cavity-type heat exchanger, comprise primary fluid outlet 1, primary fluid import 2, secondary heating agent import 12, secondary heating agent outlet 6, primary fluid outlet 1 and primary fluid import 2 are communicated with heat exchanger tube 7 on the heat exchanger, and secondary heating agent import 12 and the outlet 6 of secondary heating agent and cylindrical shell 11 interior cavitys are communicated with formation heat-exchange device 26; Its special character is: described energy-saving module cavity-type heat exchanger comprises a plurality of heat-exchange devices 26, tube core in its heat-exchange device is a modular organization, tube core is connected with cylindrical shell 11 by flange 4, heating agent switch 23 and refrigerant switch 24 are set between heat-exchange device 26, heat-exchange device 26 is interconnected.
Above-mentioned heating agent switch 23 is arranged between the primary fluid import 20 of the primary fluid outlet 1 of previous heat-exchange device and a back heat-exchange device; Described refrigerant switch 24 is arranged on the secondary heating agent import 12 of previous heat-exchange device and the secondary heating agent of a back heat-exchange device exports between 21.
The heat-exchange device 26 of above-mentioned energy-saving module cavity-type heat exchanger is a square chest type structure, and it is made of deflector 14, square tube sheet 5, square flange end socket 3 in deflection plate 13, a plurality of casing in square cylindrical shell 11, many heat exchanger tubes 7, a plurality of casing; Described many heat exchanger tubes 7 are arranged on the square tube sheet 5; Deflector 14 is horizontally disposed with on the square cylindrical shell 11 in a plurality of casings in the described square chest type heat exchanger, constitutes a plurality of cavitys up and down in square cylindrical shell 11, shifts to install successively about the import and export of each cavity; In the described casing deflection plate 13 from left to right successively before and after dislocation be vertically set on the many heat exchanger tubes 7; The square tube sheet 5 of described heat-exchange device 26, square flange end socket 3 constitute outer chamber, a plurality of tube sheet deflection plates 27 are set to form a plurality of backhaul passages in it.
Above-mentioned tube core is made of deflection plate 13 in square tube sheet 5 and heat exchanger tube 7 and the casing, and its square tube sheet 5 is connected by flange 4 with square flange end socket 3.
A plurality of deflectors 14 in the above-mentioned square chest type heat-exchange device 26 constitute a plurality of cavitys up and down, and the quantity of the many heat exchanger tubes 7 in each cavity is successively decreased from top to bottom successively.
Above-mentioned heat exchanger tube 7 adopts U type pipe.
On the square cylindrical shell 11 of above-mentioned energy-saving module cavity-type heat exchanger thermometer 8 is set, Pressure gauge 9, safety valve 10.
The present invention is with respect to prior art, and its advantage is as follows:
(1), the present invention has used modular organization, dismounting and change maintenance easily.
(2), bearing capacity height of the present invention, by being pressed droop loss little, regional efficiency of heating surface height, heat resistance is good, the manufacturing process maturation, capacity is big, is to three times of other heat exchanger, and cost is lower, reduced by 1/3 cost than other heat exchanger, the easy performance of repair and maintenance, long service life.
(3), heat transfer coefficient height of the present invention, save heat exchange area, the heat transfer coefficient (K value) of general plate type heat exchanger, vapour-water heat exchange heat transfer coefficient (K value) is 3000-5000W/ (m
2.k), water-water heat exchange heat transfer coefficient (K value) is 800-1800W/ (m
2.k), vapour of the present invention-water heat exchange heat transfer coefficient (K value) is bigger more than 1.8 times than plate type heat exchanger, is more than 1.4 times of shell-and-tube heat exchanger, and heat exchange area can reduce 40-60%; Water-water heat exchange heat transfer coefficient (K value) is than the high 30-48% of general plate type heat exchanger, than the high 25-45% of general shell-and-tube heat exchanger.
(4), craft science of the present invention, easy access, process pipe is convenient to install, and long service life, be 15-20 service life.
Description of drawings
Fig. 1 is the structural representation of existing shell-and-tube heat exchanger;
Fig. 2 is the structural representation of existing plate type heat exchanger;
Fig. 3 is the specific embodiment of the present invention: the perspective view of vapour-water heat exchange type;
Fig. 4 is the specific embodiment of the present invention: the structural representation of vapour-water heat exchange type;
Fig. 5 is a top cross-sectional view of the present invention;
Fig. 6 is the structural representation of blind flange among Fig. 4;
Fig. 7 is a header board pipe preceding structure schematic diagram among Fig. 4;
Fig. 8 is the structural representation of header board pipe back among Fig. 4;
Fig. 9 is the structural representation of rear flange and cylindrical shell among Fig. 4;
Figure 10 is a structural representation of going up tube core among Fig. 4;
Figure 11 is the structural representation of following tube core among Fig. 4;
Figure 12 is a vertical view of going up tube core among Fig. 4;
The number in the figure explanation:
The secondary heating agent import 23-heating agent switch 24-refrigerant switch 25-rear head 26-heat-exchange device 27-tube sheet deflection plate of the next heat-exchanger rig of secondary heating agent outlet 22-of the next heat-exchanger rig of primary fluid import 21-of the next heat-exchanger rig of primary fluid outlet 20-of the next heat-exchanger rig of deflection plate 14-deflector 15-sewage draining exit 16-supporting leg 17-lower perforated plate 18-valve 19-in the 1-primary fluid outlet 2-primary fluid import 3-end socket 4-flange 5-square tube sheet 6-secondary heating agent outlet 7-heat exchanger tube 8-thermometer 9-Pressure gauge 10-safety valve 11-cylindrical shell 12-secondary heating agent import 13-casing
The specific embodiment
Referring to Fig. 1, shell-and-tube heat exchanger is that heat exchanger tube is connected with tube sheet, fixes with cylindrical shell, because of the structure of shell-and-tube heat exchanger again, its first and second heating agent is at same casing, do not have and isolate, interior pipe resistance is big, is pressed temperature too high, droop loss is big by pressing, heat resistance is poor, and can only add drain valve could operate as normal, so its technology more complicated, cost height, be not durable.
Referring to Fig. 2, existing plate type heat exchanger, because plate type heat exchanger is to rely on plate and plate mutual extrusion to seal, utilize the groove of plate punching press as runner, the runner gap is little, often because of tiny dirt obstruction runner or by the chloride ion corrosion in the water, therefore need often equipment to be cleared up, influence the heat exchange effect and normal use of equipment, caused inconvenience to the user.And it is one-stroke, single channel, and equipment thermal efficiency is low, waste energy, and the operating cost height, service life is short.
High-efficiency module cavity-type heat exchanger of the present invention is a kind of energy-saving equipment of realizing that heat transmits between the material, at a kind of process equipment of industry widespread usage such as heating, air-conditioning oil, chemical industry, petrochemical industry, metallurgy, electric power, light industry, food, medicine.The present invention has adopted modular tube sheet, flange connection in order to reduce maintenance cost; So easy to assemble, maintenance, damaged tubular or obstruction only need to extract module out and retube; If whole module is out of joint, only need to change the homologous series module, so just reduced the maintenance cost and the labour cost of equipment.
Referring to Fig. 3, Fig. 4, Fig. 5, high-efficiency energy-saving modular chamber type heat exchanger of the present invention, its structure comprises primary fluid outlet 1, primary fluid import 2, the secondary heating agent advances 12, secondary heating agent outlet 6 etc., its respectively with heat exchanger on heat exchanger tube 7 and the cavity in the cylindrical shell is communicated with formation heat-exchange device 26; High-efficiency energy-saving modular chamber type heat exchanger of the present invention comprises a plurality of heat-exchange devices 26, tube core in its heat-exchange device is a modular organization, tube core is connected with cylindrical shell 11 by flange, heating agent switch 23 and refrigerant switch 24 are set between heat-exchange device 26, heating agent switch 23 is arranged between the primary fluid import 20 of the primary fluid outlet 1 of previous heat-exchange device and a back heat-exchange device, and primary fluid is interconnected; Refrigerant switch 24 is arranged on the secondary heating agent import 12 of previous heat-exchange device and the secondary heating agent of a back heat-exchange device exports between 21, and the secondary heating agent is interconnected.
Constitute by deflection plate 13 in square tube sheet 5 and heat exchanger tube 7 and the casing referring to Figure 10, Figure 11, Figure 12, tube core, its square tube sheet 5, be connected by flange 4 with square flange end socket 3.
In order to overhaul conveniently, on each heat-exchange device 26, all be provided with independently cold and hot matchmaker and import and export pipeline and valve 18, thereby each module can be worked alone, if other modules have been overhauled, remaining module still works on, do not influence the whole efficiency of heat exchanger, esy to use, safe and reliable.
In order to improve equipment thermal efficiency, effective use of energy sources; The present invention has adopted the heating of water bag vapour adverse current, (water also is other heated medium, vapour can be high-temperature steam or high-temperature water), and adopt multiple-pass, multithread road, many bafflings, formed each heat transfer space zone heating, the module region heating divides successively: the heating of low temperature (low) district, the low district heating of middle temperature, middle Wen Gaoqu heating, high temperature low district heating, high temperature high district heating, utilized primary fluid fully, thermal efficiency height, heating fully, the temperature difference has only about 5 ℃.
Heat-exchange device 26 referring to Fig. 4, Fig. 5, described high-efficiency energy-saving modular chamber type heat exchanger is a square chest type structure, and it is made of deflector 14, square tube sheet 5, square flange end socket 3 in deflection plate 13, a plurality of casing in square cylindrical shell 11, many heat exchanger tubes 7, a plurality of casing; Described many heat exchanger tubes 7 are arranged on the square tube sheet 5; Deflector 14 is horizontally disposed with on the square cylindrical shell 11 in a plurality of casings in the described square chest type heat exchanger, in square cylindrical shell 11, constitute a plurality of cavitys up and down, according to liquid countercurrent heating principle, about the import and export of each cavity, shift to install successively, constitute the fluid passage; Deflection plate 13 front and back are vertically set on the many heat exchanger tubes 7 successively in the described casing; The square tube sheet 5 of described heat-exchange device 26, square flange end socket 3 constitute outer chamber, and a plurality of tube sheet deflection plates 27 are set in it, constitute the backhaul passage.Heat-exchange device 26 of the present invention can also be circle shell-type structure; Cylindrical shell adopts low alloy steel plate to make.
Referring to Figure 10, Figure 11, in order to overcome plate type heat exchanger runner gap Xiao Yi obstruction, we have adopted tiny non-ferrous metal or alloy U type pipe is runner, and heat-exchanging tube bundle is
19 * 1.5 (2.0) mm or
The dual damascene of 25 * 1.5 (2.3) mm or unrippled copper tube, manganese alloy, manganese-titanium pipe or other compo pipes.
Referring to Fig. 6, Fig. 7, Fig. 8, Fig. 9, at plate type heat exchanger flow velocity, instability of flow, the return-stroke type tube sheet that the present invention has adopted heat exchanger tube quantity, flow to successively decrease has formed forced turbulent, has guaranteed flow velocity, need not add drain valve.Its a plurality of deflectors 14 in square chest type heat-exchange device 26 constitute a plurality of cavitys up and down, and the quantity of the many heat exchanger tubes 7 in each cavity is successively decreased from top to bottom successively, thereby has formed forced turbulent, has guaranteed flow velocity and pressure drop.
For guaranteeing safety, on each heater 26 of high-efficiency energy-saving modular chamber type heat exchanger of the present invention thermometer 8 is set, Pressure gauge 9, safety valve 10; For maintenance, easy to use, on the square cylindrical shell of heat exchanger, supporting leg 16 is set, sewage draining exit 15 is set under cylindrical shell.
The concrete course of work is:
Referring to Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9; The flow process of primary fluid is: high-temperature steam or high-temperature water flow in the end socket 3 by primary fluid import 2, high-temperature steam or high-temperature water are by tube sheet deflection plate 27 water conservancy diversion in the end socket, high-temperature steam enters heat exchanger tube 7, high-temperature steam or high-temperature water following current are returned in the end socket in the U type heat exchanger tube 7, enter in second backhaul and (promptly flow into the low district of high temperature) from the high district of high temperature, the pipe number and the flow of tube sheet successively decrease in proportion successively, have formed forced turbulent, have guaranteed flow velocity and pressure drop.Return in the end socket by U type heat exchanger tube adverse current then, again by tube sheet deflection plate 27 water conservancy diversion in the end socket, make i.e. the 3rd backhaul of Wen Gaoqu from the low district of high temperature flows into of high-temperature steam or high-temperature water, return in the end socket by the following current of U type heat exchanger tube then, by end socket internal tube plate deflection plate 27 water conservancy diversion, enter the 4th backhaul (the low district of temperature during promptly therefrom Wen Gaoqu flows into), the pipe number and the flow of tube sheet successively decrease in proportion, form forced turbulent, guaranteed flow velocity and pressure drop.Return in the end socket by U type heat exchanger tube adverse current then, by end socket internal tube plate deflection plate 27 water conservancy diversion, flow successively decreases once more, has guaranteed flow velocity and pressure drop once more.Make the therefrom warm low district of high-temperature steam or high-temperature water flow into i.e. the 5th backhaul of low-temperature space, pass through the heat exchanger tube following current then in left end socket, last condensate water is discharged by primary fluid outlet 1 or 19.
The flow process of secondary heating agent is: be to be heated heating agent in the shell, be heated heating agent and enter cylindrical shell by bottom pipe, pass through water conservancy diversion and left and right sides baffling up and down then, by the heating of heating tube zone, be preheating to the high temperature heating of the high district of high temperature from low-temperature space gradually, be used for heat supply by top duct from the cylindrical shell outflow then.Be preheating to the high temperature heating of the high district of high temperature from low-temperature space, heat exchange is abundant, mainly show: first stroke of the fifth line journey heating secondary heating agent of primary fluid, second stroke of the fourth line journey heating secondary heating agent of primary fluid, the third trip of the third trip heating secondary heating agent of primary fluid, the fourth line journey of second stroke heating secondary heating agent of primary fluid, the fifth line journey of first stroke heating secondary heating agent of primary fluid, the secondary heating agent flows out from the heating agent outlet at top and is used for heat supply then.High-temperature steam or water enter from the height district, successively decrease to low district gradually by tube sheet and deflector then, flow out from low district then.Be heated heating agent and enter from low district, then by the deflector between the pipe and deflection plate gradually Xiang Gao progressively increase in the district, flow out from the height district then.The high-efficiency module cavity-type heat exchanger be with high-temperature steam or water by the heating agent in the heat exchanger tube heating shell, it is a kind of heat transfer process of realizing between the material.
The high-efficiency module cavity-type heat exchanger had both adopted square chest type structure, it can also be circle shell-type structure, compact conformation is attractive in appearance, small, volume is greatly three times of general heat exchanger, and cost has but reduced more than 1/3 times, save land area and building height, save construction investment, be convenient to design arrangement, operation is convenient simultaneously.Adopt low alloy steel plate and non-ferrous alloy to make and effectively prevented corrosion.The bearing capacity height, by being pressed droop loss little, regional efficiency of heating surface height, performance such as heat resistance is good, and manufacturing process is good, and cost is lower, and maintenance management is easy, long service life has effectively prevented some disadvantages of other heat exchangers.
Claims (5)
1. energy-saving module cavity-type heat exchanger, comprise primary fluid outlet (1), primary fluid import (2), secondary heating agent import (12), secondary heating agent outlet (6), primary fluid outlet (1) and primary fluid import (2) are communicated with heat exchanger tube (7) on the heat exchanger, and secondary heating agent import (12) and secondary heating agent export the interior cavity of (6) and cylindrical shell (11) and be communicated with formation heat-exchange device (26); It is characterized in that: described energy-saving module cavity-type heat exchanger comprises a plurality of heat-exchange devices (26), tube core in its heat-exchange device is a modular organization, tube core is connected with cylindrical shell (11) by flange (4), heating agent switch (23) and refrigerant switch (24) are set between heat-exchange device (26), heat-exchange device (26) is interconnected;
The primary fluid that described heating agent switch (23) is arranged on previous heat-exchange device exports between the primary fluid import (20) of (1) and a back heat-exchange device; Described refrigerant switch (24) is arranged on the secondary heating agent import (12) of previous heat-exchange device and the secondary heating agent of a back heat-exchange device exports between (21);
The heat-exchange device of described energy-saving module cavity-type heat exchanger (26) is a square chest type structure, and it is made of deflector (14), square tube sheet (5), square flange end socket (3) in deflection plate (13), a plurality of casing in square cylindrical shell (11), many heat exchanger tubes (7), a plurality of casing; Described many heat exchanger tubes (7) are arranged on the square tube sheet (5); Deflector (14) is horizontally disposed with on the square cylindrical shell (11) in a plurality of casings in the described square chest type heat exchanger, constitutes a plurality of cavitys up and down in square cylindrical shell (11), shifts to install successively about the import and export of each cavity; In the described casing deflection plate (13) from left to right successively before and after dislocation be vertically set on the many heat exchanger tubes (7); The square tube sheet (5) of described heat-exchange device (26), square flange end socket (3) constitute outer chamber, a plurality of tube sheet deflection plates (27) are set to form a plurality of backhaul passages in it.
2. energy-saving module cavity-type heat exchanger according to claim 1, it is characterized in that: described tube core is made of deflection plate (13) in square tube sheet (5) and heat exchanger tube (7) and the casing, and its square tube sheet (5) is connected by flange (4) with square flange end socket (3).
3. energy-saving module cavity-type heat exchanger according to claim 2, it is characterized in that: the deflector (14) in the described square chest type heat-exchange device (26) constitutes a plurality of cavitys up and down, and the quantity of the many heat exchanger tubes (7) in each cavity is successively decreased from top to bottom successively.
4. energy-saving module cavity-type heat exchanger according to claim 3 is characterized in that: described heat exchanger tube (7) adopts U type pipe.
5. energy-saving module cavity-type heat exchanger according to claim 3 is characterized in that: on the square cylindrical shell (11) of described energy-saving module cavity-type heat exchanger thermometer (8) is set, Pressure gauge (9), safety valve (10).
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| CNB2005100227764A CN100416208C (en) | 2005-12-31 | 2005-12-31 | High-efficiency energy-saving modular chamber type heat exchanger |
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| CNB2005100227764A CN100416208C (en) | 2005-12-31 | 2005-12-31 | High-efficiency energy-saving modular chamber type heat exchanger |
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| CN100416208C true CN100416208C (en) | 2008-09-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922878A (en) * | 2010-08-11 | 2010-12-22 | 上海贝电实业股份有限公司 | Modularized heat pipe air heat exchanger |
| CN104070169B (en) * | 2014-06-24 | 2016-08-17 | 华南理工大学 | A kind of sintered heat pipe quantitatively fills out powder equipment |
| CN109340559A (en) * | 2018-11-09 | 2019-02-15 | 东风商用车有限公司 | Two-stage gasifier |
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| CN2168226Y (en) * | 1993-09-27 | 1994-06-08 | 刘振印 | Flow-guiding multi-stroke positive displacement heat exchanger |
| CN2196773Y (en) * | 1994-01-20 | 1995-05-10 | 郎逵 | Multiple-effect heat exchanger |
| CN2312438Y (en) * | 1997-07-17 | 1999-03-31 | 上海华志物资有限公司 | Multi-core and sleeve type steam heating apparatus |
| CN2335112Y (en) * | 1998-08-06 | 1999-08-25 | 华南理工大学 | Low flow-resistant shell structure pipe-shell type heat-exchanger |
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2005
- 2005-12-31 CN CNB2005100227764A patent/CN100416208C/en active Active
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|---|---|---|---|---|
| JPS60186691A (en) * | 1984-03-06 | 1985-09-24 | Noritake Co Ltd | Heat exchanger |
| JPS6438128A (en) * | 1987-08-04 | 1989-02-08 | Hokkaido Gas Kk | High efficiency refrigeration type gas dehumidifying apparatus |
| CN2075331U (en) * | 1990-11-01 | 1991-04-17 | 刘霖沛 | Dual hole horizontal volune type heat-exchange apparatus having turbulent spiral |
| CN2168226Y (en) * | 1993-09-27 | 1994-06-08 | 刘振印 | Flow-guiding multi-stroke positive displacement heat exchanger |
| CN2196773Y (en) * | 1994-01-20 | 1995-05-10 | 郎逵 | Multiple-effect heat exchanger |
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