CN201387017Y - Counter flow type flue gas condenser - Google Patents

Counter flow type flue gas condenser Download PDF

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Publication number
CN201387017Y
CN201387017Y CN200920107327U CN200920107327U CN201387017Y CN 201387017 Y CN201387017 Y CN 201387017Y CN 200920107327 U CN200920107327 U CN 200920107327U CN 200920107327 U CN200920107327 U CN 200920107327U CN 201387017 Y CN201387017 Y CN 201387017Y
Authority
CN
China
Prior art keywords
flue gas
pipe
cylindrical shell
recessed
barrel body
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 - Lifetime
Application number
CN200920107327U
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Chinese (zh)
Inventor
薛晶
王成研
赵恒兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing First Ring Hengxing Boiler Equipment Installation Engineering Co Ltd
Original Assignee
Beijing First Ring Hengxing Boiler Equipment Installation Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing First Ring Hengxing Boiler Equipment Installation Engineering Co Ltd filed Critical Beijing First Ring Hengxing Boiler Equipment Installation Engineering Co Ltd
Priority to CN200920107327U priority Critical patent/CN201387017Y/en
Application granted granted Critical
Publication of CN201387017Y publication Critical patent/CN201387017Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

The utility model relates to a counter flow type flue gas condenser comprising a barrel body, wherein the upper end of the barrel body is provided with an upper pipe plate, and the lower end thereof is provided with a lower pipe plate; the upper pipe plate and the lower pipe plate are provided with a plurality of pipe plate holes with same quantity and diameter; the barrel body is internally provided with a plurality of concave flue gas pipe which are vertically arranged side by side and parallel to the barrel body; two ends of the concave flue gas pipe are welded with flue gas pipe end heads; the upper end and the lower end of the concave flue gas pipe are connected with the pipe plate holes of the upper pipe plate and the lower pipe plate by the flue gas pipe end heads; and one side of the upper end of the barrel body is provided with a water outlet short pipe and one side of the lower end thereof is provided with a water inlet short pipe. The counter flow type flue gas condenser leads the flue gas to enter the concave flue gas pipe, and washes the concave flue gas pipe longitudinally by larger flue speed from up to down; water absorbing heat enters the inside of the barrel body from the water inlet short pipe, washes the outside of the concave flue gas pipe from down to up, flows out from the water outlet short pipe at the upper part of a heat exchanger after absorbing heat and then enters a heat supply system; and the two types of mediums proceed forwards in a counter direction all the time. The counter flow type flue gas condenser has good flue gas heat recovery effect and strong anti-vaporation capability.

Description

Reverse-flow flue gas condenser
Technical field
The utility model relates to a kind of flue gas condenser, relates in particular to a kind of reverse-flow flue gas condenser.Belong to flue gas heat energy reutilization technology field.
Background technology
At present, the dividing wall type heat exchanger that is widely used in the utilization of oil-burning gas-fired boiler flue gas heat recovery is to utilize water to absorb a large amount of sensible heats and the latent heat of vaporization that contains in the flue gas, reaches purpose of energy saving.Fin-tube heat exchanger the most commonly, flue gas is as the fin side of heat release media flow outside pipe, water flows in the pipe as heat-absorbing medium, fin has only increased the heat exchange area with flue gas, and the relative eroding velocity of flue gas is lower, the coefficient of heat transfer is little, be that the big problem of cigarette side thermal resistance still exists, in addition, this heat exchanger applications is in the steam boiler of fuel-firing gas-firing, during as economizer, when boiler operatiopn was not intake, high-temperature flue gas washed away finned tube, can cause managing interior water " vaporization ", form " steam binding " when intaking again easily, influence safe operation.
The utility model content
The utility model provides a kind of reverse-flow flue gas condenser in order to overcome the deficiencies in the prior art.
Reverse-flow flue gas condenser of the present utility model is achieved through the following technical solutions:
A kind of reverse-flow flue gas condenser, comprise cylindrical shell, upper perforated plate is established in described cylindrical shell upper end, tube sheet is set in the lower end, the upper end welding of upper perforated plate and cylindrical shell, the lower end welding of lower perforated plate and cylindrical shell, cylindrical shell forms for rolling, it is identical on described upper perforated plate and the lower perforated plate quantity to be set, a plurality of tubesheet holes that diameter is identical, vertically be parallel to cylindrical shell in the described cylindrical shell and be arranged side by side many piece " recessed " shape fume pipes identical with tubesheet holes quantity, the cross section of described " recessed " shape fume pipe is " recessed " shape profile, half garden that is three minor diameters constitutes circular wave, be connected with large diameter half garden, become symmetrical half garden waved pattern.Described " recessed " shape fume pipe also can be other " recessed " shape and structure, described " recessed " shape fume pipe two ends are welded with the fume pipe termination, reducing is passed through with " recessed " fume pipe two ends in the fume pipe termination, fade to circle from " recessed " shape, thereby can make the fume pipe termination to weld with tubesheet holes, described " recessed " shape fume pipe is connected with tubesheet holes on upper perforated plate and the lower perforated plate by the fume pipe termination, described cylindrical shell upper end one side sets out the water short tube, lower end one side is established the water inlet short tube, the water outlet short tube is welded on the side on cylindrical shell top, being used for hot water flows out, the water inlet short tube is welded on the cylindrical shell lower side, is used to flow to the water of low temperature.
Described cylindrical shell coats alumina silicate fibre outward as heat-insulation layer, described heat-insulation layer peripheral protective metal veneer.
The utility model has following beneficial effect with respect to prior art:
1, reverse-flow flue gas condenser of the present utility model has adopted " recessed " shape fume pipe, the tubesheet holes of flue gas on upper perforated plate enters " recessed " shape fume pipe by the fume pipe termination, with than opium speed parallel baffled " recessed " shape fume pipe, narrow down because of flow area at " recessed " shape flue gas pipeline section, the radial symmetry gradient of flue gas increases, the angle of itself and flue gas liquid velocity vector diminishes, and has improved the concertedness in velocity field and temperature field, and the heat exchange effect strengthens.
2, reverse-flow flue gas condenser of the present utility model has adopted flue gas to walk in the pipe, water is walked outside the pipe, in the diabatic process of flue gas and water, two media (flue gas and water) all the time with " reverse " flow advance feasible, bottom at " recessed " shape fume pipe, the water inlet of low temperature and the flue gas of lower temperature have kept certain temperature and pressure, make flue gas can be lower than " dew point ", emit the latent heat of vaporization, this reverse-flow flue gas condenser has bigger water capacity than fin-tube heat exchanger, anti-" vaporization " ability is stronger, is applicable to that the flue gas heat recovery of fuel-firing gas-firing steam boiler is utilized system.
3, reverse-flow flue gas condenser of the present utility model is simple in structure, installation is convenient, easy to use, with low cost.
Description of drawings
Fig. 1 is a reverse-flow flue gas condenser plane of the present utility model;
Fig. 2 is a reverse-flow flue gas condenser vertical view of the present utility model;
Fig. 3 is the cylindrical shell sectional view of reverse-flow flue gas condenser of the present utility model;
Fig. 4 is reverse-flow flue gas condenser of the present utility model " recessed " shape fume pipe sectional view;
Fig. 5 is that reverse-flow flue gas condenser of the present utility model " recessed " shape fume pipe two ends are connected plane with the fume pipe termination.
The specific embodiment
For can being known, one of ordinary skill in the art understands the technical solution of the utility model, existing in conjunction with the accompanying drawings to the further explanation at large of the utility model do:
A kind of reverse-flow flue gas condenser, as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, comprise cylindrical shell 6, upper perforated plate 1 is established in cylindrical shell 6 upper ends, tube sheet 2 is set in the lower end, it is identical on upper perforated plate 1 and the lower perforated plate 2 quantity to be set, a plurality of tubesheet holes 9 that diameter is identical, vertically be parallel to cylindrical shell 6 in the cylindrical shell 6 and be arranged side by side many " recessed " shape fume pipes 3, " recessed " shape fume pipe 3 two ends are welded with fume pipe termination 10, on " recessed " shape fume pipe 3, following two ends are connected with tubesheet holes 9 on upper perforated plate 1 and the lower perforated plate 2 by fume pipe termination 10, and cylindrical shell 6 upper ends one side sets out water short tube 4, lower end one side is established water inlet short tube 5.
Cylindrical shell 6 outer heat-insulation layer 8, the heat-insulation layer 8 outer periphery metal veneers 7 of coating.
Embodiment:
Reverse-flow flue gas condenser of the present utility model, as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, by the heat-insulation layer 8 and metal veneer 7 formations of upper perforated plate 1, lower perforated plate 2, " recessed " shape fume pipe 3, cylindrical shell 6, water inlet short tube 5 (comprising flange), water outlet short tube 4 (comprising flange), alumina silicate fibre.The two ends of " recessed " shape fume pipe 3 by fume pipe termination 10 respectively with last pipe .1, lower perforated plate 2 welding, upper perforated plate 1, on lower perforated plate 2 and the cylindrical shell 6 that rolls, the lower end welding, water outlet short tube 4 is welded in the upper side of cylindrical shell 6, water inlet short tube 5 is welded in the lower side of cylindrical shell 6, constitute a dividing wall type fixed tube-sheet exchanger thus, the cylindrical shell 6 outer alumina silicate fibres that coat are as heat-insulation layer 8, heat-insulation layer 8 peripheral protective metal veneers 7, " recessed " shape fume pipe 3 forms by rolling or suppressing, " recessed " shape fume pipe 3 forms circle by two fume pipe termination 10 reducings, so that with tubesheet holes 9 welding, the utility model adopts vertical installation, the length direction that is cylindrical shell 6 is vertical with horizontal plane, and " recessed " shape fume pipe 3 is set in parallel in the cylindrical shell with cylindrical shell 6, and each root " recessed " shape fume pipe 3 is for being arranged in parallel.In the use, flue gas is walked in " recessed " shape fume pipe 3, the tubesheet holes 9 of flue gas on upper perforated plate 1 enters " recessed " shape fume pipe 3 by fume pipe termination 10, with than opium speed parallel baffled " recessed " shape fume pipe 3, because of flow area narrows down, the radial symmetry gradient of flue gas increases 3 sections of " recessed " shape fume pipes, and the angle of itself and flue gas liquid velocity vector diminishes, improved the concertedness in velocity field and temperature field, the heat exchange effect strengthens.Flue gas emits that the tubesheet holes on lower perforated plate 29 flows out after the sensible heat and the latent heat of vaporization, enter flue and be disposed in the atmosphere, the water of heat absorption enters cylindrical shell 6 inside from the short tube 5 of intaking, wash away " recessed " shape fume pipe 3 outsides from bottom to top, flow out from the water outlet short tube 4 on the top of heat exchanger heat absorption intensification back, enters heating system.In the diabatic process of flue gas and water, two media (flue gas and water) flows with " reverse " all the time and advances.In the bottom of " recessed " shape fume pipe 3, the water inlet of low temperature and the flue gas of lower temperature have kept certain temperature and pressure, make flue gas can be lower than " dew point ", emit the latent heat of vaporization.This reverse-flow flue gas condenser has bigger water capacity than fin-tube heat exchanger, and anti-" vaporization " ability is stronger, is applicable to that the flue gas heat recovery of fuel-firing gas-firing steam boiler is utilized system.
The utility model not only is confined to the foregoing description, and is all in any conspicuous change of being done under the prerequisite of the utility model thought, all will constitute infringement to the utility model.

Claims (2)

1, a kind of reverse-flow flue gas condenser, comprise cylindrical shell (6), it is characterized in that, upper perforated plate (1) is established in described cylindrical shell (6) upper end, tube sheet (2) is set in the lower end, it is identical on described upper perforated plate (1) and the lower perforated plate (2) quantity to be set, a plurality of tubesheet holes (9) that diameter is identical, vertically be parallel to cylindrical shell (6) in the described cylindrical shell (6) and be arranged side by side many " recessed " shape fume pipes (3), described " recessed " shape fume pipe (3) two ends are welded with fume pipe termination (10), on described " recessed " the shape fume pipe (3), following two ends are connected with tubesheet holes (9) on upper perforated plate (1) and the lower perforated plate (2) by fume pipe termination (10), and a side sets out water short tube (4) on the described cylindrical shell (6), lower end one side is established water inlet short tube (5).
2, reverse-flow flue gas condenser according to claim 1 is characterized in that, outer heat-insulation layer (8), described heat-insulation layer (8) the outer periphery metal veneer (7) of coating of described cylindrical shell (6).
CN200920107327U 2009-04-14 2009-04-14 Counter flow type flue gas condenser Expired - Lifetime CN201387017Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920107327U CN201387017Y (en) 2009-04-14 2009-04-14 Counter flow type flue gas condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920107327U CN201387017Y (en) 2009-04-14 2009-04-14 Counter flow type flue gas condenser

Publications (1)

Publication Number Publication Date
CN201387017Y true CN201387017Y (en) 2010-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920107327U Expired - Lifetime CN201387017Y (en) 2009-04-14 2009-04-14 Counter flow type flue gas condenser

Country Status (1)

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CN (1) CN201387017Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788234A (en) * 2010-03-11 2010-07-28 袁奕明 Tunnel kiln smoke-gas heat exchanging dust-removal emission reduction device
CN110671951A (en) * 2019-09-30 2020-01-10 刘磊 Environment-friendly thermal power waste heat utilization equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788234A (en) * 2010-03-11 2010-07-28 袁奕明 Tunnel kiln smoke-gas heat exchanging dust-removal emission reduction device
CN110671951A (en) * 2019-09-30 2020-01-10 刘磊 Environment-friendly thermal power waste heat utilization equipment

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Granted publication date: 20100120