CN200986407Y

CN200986407Y - Plate-type heat transfer element with high heat transfer efficiency and easy cleanout

Info

Publication number: CN200986407Y
Application number: CN 200620165687
Authority: CN
Inventors: 姜树海; 于振狄; 田增吉
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-20
Filing date: 2006-12-20
Publication date: 2007-12-05
Anticipated expiration: 2016-12-20

Abstract

The utility model provides a plate heat transfer component of high heat transfer efficiency which is easy to be cleaned. The utility model comprises a positioning board and a separating plate. Both the positioning board and the separating board are of wavy shape; the wave crests of the positioning board are joined to the separating board; the parts of the separating board at the lap joint of the positioning board are lap joint parts; the lap joint parts are plane; the wavy shapes between the lap joint parts are the same; when the utility model is used in a desulfurized flue gas heater and a denitrated air preheater, the utility model is easy to be cleaned, has excellent heat transfer effect, and eliminates the problems that the resistance is large and the heat recovery effect is poor because of ashes building up the flue gas heater or the denitrated air preheater.

Description

The template heat transfer element of the high easy cleaning of a kind of heat transfer efficiency

Technical field

The utility model relates to a kind of heat transfer element, particularly be the template heat transfer element that a kind of heat transfer efficiency height of multiple layer combination has the easy cleaning characteristic again.

Background technology

The heat transfer element template is varied, every kind of effect that has every kind, commonly used have templates such as DU, NF6, FNC, DU3, but be applicable to that the air preheater after flue gas desulfurization flue gas heater (GGH) and the denitration is few, see also shown in Figure 1, it is existing NF6 plate, it comprises flat board 2 and location-plate 1, described location-plate 1 is a waveform, is overlapped on described dull and stereotyped 2, though the heat transfer element after therefore making up cleans easily, but heat-transfer effect is poor, be used for flue gas heater (GGH) or denitration air preheater, exist resistance big, problem such as the recuperation of heat effect is bad;

Heat-transfer effect DU3 plate had preferably appearred coming again afterwards, its structure as shown in Figure 2, comprise ripple location-plate 11 and corrugated plating 21, described corrugated plating 21 is because it is the Wave crest and wave trough structure of homogeneous, though improved heat-transfer effect, but easy cleaning not, be used for flue gas heater (GGH) or denitration air preheater because of stifled ash not the resistance that exists of easy cleaning increase and influence the recuperation of heat effect.The final demand that still can't satisfy the user.

For addressing the above problem, the utility model creator is through research and test obtain this creation finally for a long time.

Summary of the invention

The purpose of this utility model is, the template heat transfer element of the high easy cleaning of a kind of heat transfer efficiency is provided, use in the air preheater after flue gas desulfurization flue gas heater (GGH) and denitration, reach the good and cleaning easily of heat-transfer effect, on flue gas heater (GGH) or denitration air preheater, use, solved stifled grey problem, it is little to have reached the long-time running resistance, the purpose that recuperation of heat is effective.

For achieving the above object, the technical solution adopted in the utility model is, a kind of (template heat transfer element of the high easy cleaning of heat transfer efficiency is provided, it comprises that a location-plate and cuts apart plate, wherein said location-plate is a waveform, and the described plate of cutting apart also is waveform, and the crest of described location-plate overlaps mutually with the described plate of cutting apart, the described plate of cutting apart is a plurality of clinch in the lap-joint with described location-plate, and described clinch is the plane.

Preferable, the wave-like between described each clinch is identical.

Description of drawings

Fig. 1 is the structural representation of existing NF6 plate;

Fig. 2 is the structural representation of existing DU3 plate;

Fig. 3 is the utility model template heat transfer element structural representation.

The specific embodiment

Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.See also shown in Figure 3ly, it is the utility model template heat transfer element structural representation,

It comprises that a location-plate 111 and cuts apart plate 211, wherein said location-plate 111 is a waveform, the described plate 211 of cutting apart also is waveform, the crest of described location-plate 111 overlaps mutually with the described plate 211 of cutting apart, the described plate 211 of cutting apart is a plurality of clinch 2111 in the lap-joint with described location-plate 111, described clinch 2111 is the plane, and the wave-like between described some clinch 2111 is identical.

The utility model template heat transfer element is that block-shaped identical corrugated plating is rolling again forms the CORTEN steel rolling of available 0.5～1.2mm by two; Also enamel coating behind the SPCC-SD steel rolling of available 0.5～0.8mm.Described location-plate 111 and the ripple of cutting apart plate 211 intersect to be placed and forms independently medium channel, and ripple intersects mutually, because of its disturbance and mix strong, so heat transfer efficiency height, simultaneously independently medium closed channel is arranged again, blow grey pressure medium decay slowly, so clean easily.Therefore, the utility model template heat transfer element can substitute present flue gas heater (GGH) DU3 template heat transfer element commonly used, under the prerequisite that guarantees thermal parameter, the utility model template heat transfer element is than the easier cleaning of heat transfer element of adopting the DU3 template, thereby can reduce flue gas heater (GGH) or denitration air preheater because of the resistance that stifled ash increases, can increase the recuperation of heat effect.

Through actual applied statistics, the utility model template heat transfer element is applied in the air preheater after a boiler unit of joining 600MW has denitration and replaces the NF6 plate, the height that has heat transfer element now can be reduced to 1550mm from 1700mm, make the heat transfer element height save 150mm.With the identical thermodynamic property of former heat transfer element the time, can make total pressure loss (flue gas resistance) reduce 10%.The annual subsidiary engine power consumption expense that can save surplus in the of 50 ten thousand yuans for power plant.If change cold junction layer heat transfer element the heat transfer element of the utility model template heat transfer element of equal altitudes into by the NF6 plate, its result increases by 2% but reduce exhaust gas temperature significantly and improve the recuperation of heat amount in the pressure loss (flue gas resistance).Boiler efficiency can increase about 0.15% like this.Ten thousand yuans fuel cost surplus the annual saving 300.

More than explanation is novel just illustrative for this; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.

Claims

1, the template heat transfer element of the high easy cleaning of a kind of heat transfer efficiency, it is characterized in that, it comprises that a location-plate and cuts apart plate, wherein said location-plate is a waveform, the described plate of cutting apart also is waveform, the crest of described location-plate overlaps mutually with the described plate of cutting apart, and the described plate of cutting apart is a plurality of clinch in the lap-joint with described location-plate, and described clinch is the plane.

2, template heat transfer element according to claim 1 is characterized in that, the wave-like between described each clinch is identical.