CN2861933Y - Efficient plate and tube back type square box heat exchanger - Google Patents
Efficient plate and tube back type square box heat exchanger Download PDFInfo
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- CN2861933Y CN2861933Y CN 200520079148 CN200520079148U CN2861933Y CN 2861933 Y CN2861933 Y CN 2861933Y CN 200520079148 CN200520079148 CN 200520079148 CN 200520079148 U CN200520079148 U CN 200520079148U CN 2861933 Y CN2861933 Y CN 2861933Y
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- heat exchanger
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- tube sheet
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Abstract
The utility model relates to a heat exchanging device, in particular to a heat exchanger with return journey of high effective plate tube. The utility model accepts box type structural plate tube return journey heat exchanger. In the heat exchanger, a baffle, a tube plate baffle and a fluid guide plate in box may constitute multiple journeys, multiple flowing channels and multiple baffles passageway with compact structure, small shape, high heat transmission factor, less heat exchanging area and low cost.
Description
One, technical field:
The present invention relates to heat exchanger, is a kind of high efficiency plate pipe reverse running type square box heat exchanger specifically.
Two, technical background:
In the prior art, existing plate type heat exchanger finds that by long term studies and user's actual behaviour in service mainly there is following shortcoming in existing plate type heat exchanger:
1, runner gap Xiao Yi stops up, and flow velocity is constant, instability of flow.
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 stop up runner because of tiny dirt, therefore need often equipment to be cleared up, influence the heat exchange effect and normal use of equipment, caused inconvenience to the user.
2, one-stroke, single channel, equipment thermal efficiency is low, wastes energy the operating cost height.
Plate type heat exchanger primary fluid and secondary heating agent are one-stroke, and haul distance is 3/4 of a plate height.Because plate type heat exchanger primary fluid and secondary heating agent are one-stroke, and primary fluid and secondary heating agent stroke weak point.Primary fluid is also utilizing the end that just arrive runner fully, and the also not utilizations once more of these heating agents that do not utilize fully, and the heating agent utilization rate only is about 50%, has wasted a large amount of available energys, has increased expense, to around cause thermal pollution; The secondary heating agent must heat also not absorbing fully reaches institute must temperature the time, has arrived the end of runner, and electric energy has been wasted in the heating that must repeatedly circulate repeatedly, has increased the operating cost of equipment.General plate-type heat-exchange heat transfer coefficient (K value), 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 800-1200W/ (m
2.k).
3, plate is perishable, easily perforation.Must change plate, sealing strip, invest once more, user's investment cost is increased once more, and the equipment that influenced normally use.
4, maintenance of equipment expense height.
Because sealing is to rely on the rubber strip crush seal between the plate type heat exchanger plate, rubber strip crimp is added and is heated, and must all must open by every sheet during overhaul of the equipments, and in a single day plate is opened major part and just can not be used, and must change.The price that the rubber strip list is bought is all very high, has brought rubber strip and the artificial very big expense bought to the user.
5, material: existing plate type heat exchanger plate all adopts stainless steel material, because of containing the CL ion in China's most of province water, and the CL ion contacts meeting generation chemical reaction with stainless steel, plate is formed corrosion, and general plate type heat exchanger plate is after using 2 years, and some plates are just very thin or bored a hole because of CL ion etching plate wall, must change plate, invest once more, user's investment cost is increased once more, and the equipment that influenced normally uses.
6, lack service life, plate type heat exchanger limits because of its structure and material, and service life is generally at 2-3.
7, simple in structure, no outer cover packaging, and also profile is not attractive in appearance, practical.
Three, summary of the invention:
The purpose of this invention is to provide a kind of high efficiency plate pipe reverse running type square box heat exchanger that can raise the efficiency, reduce cost and dwindle space.
For achieving the above object, the technical solution used in the present invention:
High efficiency plate pipe reverse running type square box heat exchanger comprises heat exchanger, heating agent outlet 2, heating agent import 9, high-temperature steam import 1, condensate water outlet 10, its respectively with heat exchanger on heat exchanger tube and the import and export of housing is connected the formation heat-exchange device; Its special character is: described plate pipe backhaul heat exchanger is a square chest type structure, and it is made of deflector 5, square tube sheet 6, square flange end socket 7 in deflection plate 11, a plurality of tube sheet deflection plate 8, a plurality of casing in square cylindrical shell 3, many heat exchanger tubes 4, a plurality of casing; Described many heat exchanger tubes 4 are arranged on the square tube sheet 6; Deflection plate 11 is horizontally set in the square cylindrical shell 3 in a plurality of casings in the described square chest type heat exchanger, constitutes a plurality of cavitys, shifts to install successively about the import and export of each cavity; Deflector 5 is vertically set in the square cylindrical shell 3 in a plurality of casings in the described square chest type heat exchanger, shifts to install successively before and after the import and export of a plurality of cavitys of its formation; The square tube sheet 6 of described square chest type heat exchanger, square flange end socket 7 constitute outer chamber, and a plurality of tube sheet deflection plates 8 are set in it, constitute the backhaul passage.
Above-mentioned square tube sheet 6, and square flange end socket 7 between be the flange type of attachment.
Above-mentioned heat exchanger tube 4 adopts nonferrous metal tube.
The present invention is with respect to prior art, and its advantage is as follows:
Tube sheet backhaul heat exchanger shell adopts low alloy steel plate to make, and heat-exchanging tube bundle is dual damascene copper tube, nickel alloy or the Nitinol pipe of 19 * (2.0) 1.5mm.The general advantage of this heat exchanger is pressed droop loss little as the bearing capacity height, regional efficiency of heating surface height, and heat resistance is good, the manufacturing process maturation, capacity big (be other heat exchangers to escort services), cost is lower, outside the performances such as maintenance management is easy, long service life also has following important feature:
1, tube sheet backhaul heat exchanger structure adopts the square chest type profile, and compact conformation is small, saves land area and building height.Save construction investment, be convenient to design arrangement, operation is simultaneously made and is done conveniently.
2, the spacing of the gap ratio plate type heat exchanger of the steam passage of tube sheet backhaul heat exchanger and water channel is big several times, is not easy to stop up.The heat-exchanging tube bundle subdivision arranges that the size and the weight of each unit heat-exchanging tube bundle are less, is convenient to safeguard and clean.
3, good sealing effect, the housing of tube sheet backhaul heat exchanger connect the employing welding, and heat-exchanging tube bundle and tube sheet adopt expanded joint, and be solid and reliable.Each unit of heat-exchanging tube bundle independently is provided with,
4, craft science, easy access, process pipe is convenient to install, each unit of heat-exchanging tube bundle independently is provided with, and only need open heat exchanger front and back end socket during maintenance, and heat-exchanging tube bundle is inner to come into plain view, simple and convenient, pipe has been broken only to need to extract out and has been changed,--end socket and tube sheet sealing plate can use repeatedly, generally mustn't change.
5, heat transfer coefficient height is saved heat exchange area, general tube sheet backhaul heat exchanger heat transfer coefficient (K value), and vapour-water heat exchange heat transfer coefficient (K value) is 9500W/ (m
2.k) about; Water-water heat exchange heat transfer coefficient (K value) is 2500-3500W/ (m
2.k), vapour-water heat exchange is bigger about 1 times than plate type heat exchanger, and heat exchange area can reduce 40-60%; Water-water heat exchange heat transfer coefficient is than the high 20-40% of general light pipe heat exchanger.
6, new high-efficiency, zone heating, heat utilization height.The condensing water temperature that plate pipe backhaul heat exchanger vapour-water heat exchange is discharged is low both not to have had leakage losses generally below 70 ℃, did not need to install steam trap yet.The heat exchange zone is not in the same space: multiple-pass, multithread road, many bafflings.The zone heating divides five (six) districts from top to bottom: (low temperature low district heating) low temperature high district heating, the low district heating of middle temperature, middle Wen Gaoqu heating, high temperature low district heating, high temperature high district heating.The subregion heating, the runner lengthening, and all be the adverse current heating, its heat exchange is abundant.
7, the condensate water pressure of plate pipe backhaul heat exchanger vapour-water heat exchange discharge is 80% of steam pressure, can utilize the overbottom pressure of self to be back to the boiler room.Saved the equipment and the station investment of condensate return system, it is all greatly convenient to design simultaneously and manage.
8, hydraulic characteristic(s) is good, and heating agent is little with the flow resistance that is heated water, flow speed stability.
9, long service life, be 15-20 service life.
Four, description of drawings:
Fig. 1 is the assembly structure schematic diagram of existing plate-type heat-exchange;
Fig. 2 is the cross-sectional view of plate pipe backhaul heat exchanger of the present invention;
Fig. 3 is the horizontal profile structure schematic diagram of plate pipe backhaul heat exchanger of the present invention;
Fig. 4 is the perspective view of the casing of plate pipe backhaul heat exchanger of the present invention;
The number in the figure explanation:
1-high-temperature steam import 2-heating agent outlet 3-square cylindrical shell
Deflector 6-square tube sheet in the 4-heat exchanger tube 5-casing
The import of 7-square flange end socket 8-tube sheet deflection plate 9-heating agent
The 10-condensate water goes out deflection plate in the 11-casing
Five, the specific embodiment:
Referring to Fig. 1, 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 stop up runner because of tiny dirt, 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, wastes energy the operating cost height.
Referring to Fig. 2, Fig. 3, Fig. 4, plate pipe backhaul heat exchanger of the present invention is a square chest type structure, it is made of deflector 5, square tube sheet 6, square flange end socket 7 in deflection plate 11, a plurality of tube sheet deflection plate 8, a plurality of casing in square cylindrical shell 3, many heat exchanger tubes 4, a plurality of casing; Described many heat exchanger tubes 4 are arranged on the square tube sheet 6;
Thereby the heat exchange zone does not form multiple-pass, multithread road, many bafflings in the same space.The zone heating divides five (six) districts from top to bottom: (thermal treatment zone, the low district of low temperature) low temperature Gao Qu thermal treatment zone, the thermal treatment zone, the low district of middle temperature, the middle Wen Gaoqu thermal treatment zone, the thermal treatment zone, the low district of high temperature, the high temperature Gao Qu thermal treatment zone.It adopts the subregion heating, the runner lengthening, and all be the adverse current heating, its heat exchange is abundant.
In a plurality of cavitys, in order to reduce pressure drop, guarantee flow velocity about deflection plate 11 constitutes in a plurality of casings in the square chest type heat exchanger, the quantity of the many heat exchanger tubes 4 in each cavity is successively decreased from top to bottom successively.
Tube sheet is designed to many backhauls, and the zone heating divides from top to bottom: low-temperature space heating, the low district heating of middle temperature, middle Wen Gaoqu heating, high temperature low district heating, high temperature high district heating.With being threaded, square cylinder and two tube sheets are welding for the ease of maintenance flange and tube sheet, and tube-to-tube sheet connection is an expanded joint, in order to be that its stroke extends, heat fully, have welded many deflection plates up and down in the bobbin carriage, many deflectors have been welded in front and back.Pipe and the cylindrical shell/flange imported and exported are to be welded to connect.
Referring to Fig. 2, Fig. 3, Fig. 4, the operation principle of plate pipe backhaul heat exchanger is: high-temperature steam or high-temperature water flow into left type tube sheet 6 by high-temperature steam import 1, high-temperature steam or high-temperature water enter heat exchanger tube 4 by the tube sheet water conservancy diversion, high-temperature steams or high-temperature water following current enter in the square flange end socket 7 in the heat exchanger tube 4, and the water conservancy diversion by right-hand type tube sheet and the baffling of end socket be from the high inflow high temperature base area of distinguishing of high temperature again, and the pipe number of tube sheet and the flow flow velocity that successively decreases is constant.Arrive in the left type flange end socket by heat exchanger tube 4 adverse currents then, by the water conservancy diversion of left tube sheet and baffling Wen Gaoqu from the high temperature base area flows into of end socket, the pipe number and the flow of tube sheet successively decrease again, arrive in the square flange end socket 7 by heat exchanger tube 4 following currents then, the baffling of the water conservancy diversion by right tube sheet and end socket warm base area in the Wen Gaoqu inflow therefrom once more, flow successively decreases once more, arrive in the left end socket by the heat exchanger tube adverse current, flow into temperature base area, the end by the water conservancy diversion of left tube sheet and the therefrom warm base area of baffling of end socket, in left end socket, permanent set water is discharged by the heat exchanger tube following current.
Be to be heated heating agent in the square cylindrical shell 3, be heated heating agent and enter housing by heating agent import 9, then by front and back water conservancy diversion and left and right sides baffling, flow velocity slows down, and make shape journey lengthening, by the heating of heating tube zone, heating fully, mainly show: fifth line journey primary fluid heats the secondary heating agent of first stroke, fourth line journey primary fluid heats the secondary heating agent of second stroke, the third trip primary fluid heats three heating agents of first stroke, the secondary heating agent of second stroke primary fluid heating fourth line journey, the secondary heating agent of first stroke primary fluid heating fifth line journey.Heating agent outlet outflow from the top is used for heat supply then, and high-temperature steam or water enter from the height district then and successively decreases to low district gradually by tube sheet and deflector, flow out from heating agent outlet 2 then; Plate pipe backhaul heat exchanger is by the heating agent in the heat exchanger tube heating shell with high-temperature steam or water.
It is runner that the present invention has adopted 19 * (2.0) 1.5mm nonferrous metal tube. For plate type heat exchanger Flow velocity, instability of flow, the return-stroke type tube sheet that has adopted heat exchanger tube quantity, flow to successively decrease has guaranteed stream Speed is constant. In order to reduce maintenance cost, the present invention has adopted fixed tube sheet, flange to connect, easy to assemble, Maintenance, pipe have been broken only to need to extract out and have been changed. In order to improve equipment thermal efficiency, effective use of energy sources, this Brightly adopt water bag vapour and adopted multiple-pass, multiple flow passages, many bafflings, formed each heat transfer space office Section's heating, heat exchange is abundant, and the inner tube resistance is little, is pressed at the bottom of the temperature, is pressed droop loss few, and work Compare safety and stability. The present invention has adopted the square-box-shaped structure, and compact conformation is attractive in appearance, and is small, and volume is big, Be three times of general heat exchanger, save land area and building height, save construction investment, be convenient to design Arrange that operation is convenient simultaneously. The present invention adopts low alloy steel plate and non-ferrous alloy to make and has effectively prevented corruption Erosion. The bearing capacity height is pressed droop loss little, regional efficiency of heating surface height, and heat resistance is good, worker The performances such as plant, cost is lower, and maintenance management is easy, long service life has prevented that effectively other from changing Some disadvantages of hot device.
High efficiency plate pipe reverse running type square box heat exchanger of the present invention, it generally is applicable to each department municipal heating systems, district The steam of the various parameters that territory heat supply or individual consumer boiler room are supplied and high-temperature-hot-water are as the warm of heating agent Switching station uses, and also can satisfy various industrial specific uses. Can be used for common building, skyscraper and super Various heating in the skyscraper, air-conditioning circulation water for heating system and domestic hot-water's circulation.
Claims (4)
1, high efficiency plate pipe reverse running type square box heat exchanger comprises heat exchanger, heating agent outlet (2), heating agent import (9), high-temperature steam import (1), condensate water outlet (10), its respectively with heat exchanger on heat exchanger tube and the import and export of housing is connected the formation heat-exchange device; It is characterized in that: described plate pipe backhaul heat exchanger is a square chest type structure, and it is made of deflector (5), square tube sheet (6), square flange end socket (7) in deflection plate (11), a plurality of tube sheet deflection plate (8), a plurality of casing in square cylindrical shell (3), many heat exchanger tubes (4), a plurality of casing; Described many heat exchanger tubes (4) are arranged on the square tube sheet (6); Deflection plate (11) is horizontally set in the square cylindrical shell (3) in a plurality of casings in the described square chest type heat exchanger, constitutes a plurality of cavitys, shifts to install successively about the import and export of each cavity; Deflector (5) is vertically set in the square cylindrical shell (3) in a plurality of casings in the described square chest type heat exchanger, shifts to install successively before and after the import and export of a plurality of cavitys of its formation; The square tube sheet (6) of described square chest type heat exchanger, square flange end socket (7) constitute outer chamber, and a plurality of tube sheet deflection plates (8) are set in it, constitute the backhaul passage.
2, high efficiency plate pipe reverse running type square box heat exchanger according to claim 1, it is characterized in that: deflection plate (11) constitutes a plurality of cavitys up and down in a plurality of casings in the described square chest type heat exchanger, and the quantity of the many heat exchanger tubes (4) in each cavity is successively decreased from top to bottom successively.
3, high efficiency plate pipe reverse running type square box heat exchanger according to claim 1 and 2 is characterized in that: described square tube sheet (6), and square flange end socket (7) between for the flange type of attachment.
4, high efficiency plate pipe reverse running type square box heat exchanger according to claim 3 is characterized in that: described heat exchanger tube (4) adopts nonferrous metal tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079148 CN2861933Y (en) | 2005-07-27 | 2005-07-27 | Efficient plate and tube back type square box heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079148 CN2861933Y (en) | 2005-07-27 | 2005-07-27 | Efficient plate and tube back type square box heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861933Y true CN2861933Y (en) | 2007-01-24 |
Family
ID=37659564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520079148 Expired - Lifetime CN2861933Y (en) | 2005-07-27 | 2005-07-27 | Efficient plate and tube back type square box heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861933Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419366C (en) * | 2005-07-27 | 2008-09-17 | 西安华广电站锅炉有限公司 | High efficiency plate pipe reverse running type square box heat exchanger |
| CN104329972A (en) * | 2014-07-17 | 2015-02-04 | 江苏南通申通机械有限公司 | Baffling type heat pipe heat exchanger clapboard and evaporation end structure of heat pipe heat exchanger manufactured by clapboard |
-
2005
- 2005-07-27 CN CN 200520079148 patent/CN2861933Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419366C (en) * | 2005-07-27 | 2008-09-17 | 西安华广电站锅炉有限公司 | High efficiency plate pipe reverse running type square box heat exchanger |
| CN104329972A (en) * | 2014-07-17 | 2015-02-04 | 江苏南通申通机械有限公司 | Baffling type heat pipe heat exchanger clapboard and evaporation end structure of heat pipe heat exchanger manufactured by clapboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080917 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |