CN211373326U - Seawater corrosion resistant cooler end cover - Google Patents

Abstract

The utility model discloses a seawater corrosion resistant cooler end cover, which comprises a metal end cover and a plastic end cover, wherein the plastic end cover is attached to the inner side surface of the metal end cover, and the metal end cover is fixedly connected with the plastic end cover through a buckle structure; the buckle structure comprises an annular clamping groove fixed on the metal end cover and an annular clamping protrusion fixed on the plastic end cover, and the clamping protrusion is clamped into the clamping groove. Because the plastic end cover is arranged on one side of the end cover contacting with the seawater, when the device is in actual use, the plastic end cover contacts with the seawater, the strength of the electrochemical reaction of the metal end cover is reduced, the metal end cover becomes thinner, the weight of the end cover is reduced, meanwhile, the plastic end cover can be replaced, the plastic end cover is very convenient to replace, and the later maintenance cost is greatly reduced.

Description

Seawater corrosion resistant cooler end cover

Technical Field

The utility model relates to a heat transfer device technical field, specific theory relates to a resistant sea water corrosivity cooler end cover.

Background

As shown in fig. 1, the conventional marine diesel engine cooler is used for cooling circulating water in a diesel engine and pressurized air, and the cooling medium is seawater.

The cooler comprises a cooler body 5, a cooling core 4 is fixed in the cooler body 5, a cavity enclosed by the cooler body 5 and the cooling core 4 is a flow channel of internal circulation water and pressurized air, the internal circulation water and the pressurized air enter from an inlet 51 and flow out from an outlet 52, an end cover 2 and an end cover 3 made of cast iron are respectively fixed at two ends of the cooler body 5, a seawater inlet 21 and a seawater outlet 22 are arranged on the end cover 2, arrows shown in figure 1 indicate the flow direction of seawater, and the seawater and the internal circulation water or the pressurized air exchange heat through the cooling core 4.

As can be seen from the flow path of seawater in fig. 1, when the end cover is soaked in seawater for a long time, the end cover 2 and the end cover 3 are at risk of being corroded by seawater. Although the surface of the end cover is painted in the prior art, the high-frequency vibration is generated in the working process of the diesel engine, and the temperature rises after the seawater cools the internal circulating water and the pressurized air, so that the corrosivity of the seawater is enhanced, and in practice, the problems of uneven painting, paint leakage, falling of a paint layer and the like exist in the end cover, so that the corrosion of the end cover is accelerated.

In order to solve the problems, as shown in fig. 1, an anti-corrosion zinc block 1 is generally additionally arranged on an end cover to form anode protection on the end cover, so that the corrosion speed of the end cover is reduced, but the zinc block needs to be replaced regularly, and in the actual situation, few users replace the zinc block.

Some manufacturers change the end cover material from cast iron to cast copper, but the cost of the cast copper end cover is several times that of the cast iron end cover, the weight of the cast copper end cover is increased, the sailing speed of the whole ship is influenced after the weight of the ship is increased, and customers are not willing to pay extra cost for the increased cost.

Disclosure of Invention

To the above problem, the utility model aims to solve the technical problem that: the end cover of the seawater corrosion resistant cooler is provided, and the corrosion resistance of the end cover is enhanced on the premise of not increasing the weight.

In order to solve the technical problem, the technical scheme of the utility model is that:

a seawater corrosion resistant cooler end cap, the end cap comprising: the plastic end cover is attached to the inner side face of the metal end cover, and the metal end cover is fixedly connected with the plastic end cover through a buckle structure;

the buckle structure comprises an annular clamping groove fixed on the metal end cover and an annular clamping protrusion fixed on the plastic end cover, and the clamping protrusion is clamped into the clamping groove.

Preferably, the clamping groove and the clamping protrusion are semicircular.

Preferably, a flange is arranged at the edge of the metal end cover.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

because the plastic end cover is arranged on one side of the end cover contacting with the seawater, when in actual use, the plastic end cover contacts with the seawater, the strength of the electrochemical reaction of the metal end cover is reduced, the metal end cover becomes thinner, the weight of the end cover is reduced, meanwhile, the plastic end cover can be replaced, the plastic end cover is very convenient to replace, and the later maintenance cost is greatly reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art cooler;

FIG. 2 is a schematic cross-sectional view of the end cap of the seawater corrosion resistant cooler of the present invention;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 2;

FIG. 4 is an enlarged schematic view of portion A of FIG. 2;

in the figure: 1-corrosion-resistant zinc blocks; 2-end cap; 21-seawater inlet; 22-seawater outlet; 3-end cover; 4-a cooling core; 5-a cooler body; 51-an inlet; 52-an outlet; 6-metal end cap; 61-card slot; 62-flange plate; 63-bolt holes; 7-plastic end caps; 71-snap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 2, 3 and 4, the end cover of the seawater corrosion resistant cooler comprises a metal end cover 6 and a plastic end cover 7, wherein the metal end cover 6 is made of cast iron, the plastic end cover 7 is made by a die-casting process, the plastic end cover 7 is attached to the inner side surface of the metal end cover 6, and the metal end cover 6 and the plastic end cover 7 are fixedly connected through a buckle structure.

The buckling structure comprises an annular clamping groove 61 fixed on the inner surface of the metal end cover 6 and an annular clamping protrusion 71 fixed on the outer surface of the plastic end cover 7, and the clamping protrusion 71 is clamped into the clamping groove 61. Wherein, the clamping groove 61 and the clamping protrusion 71 are semicircular.

The edge of the metal end cover 6 is provided with a flange plate 62, and a plurality of bolt holes 63 are uniformly distributed on the flange plate 62.

Because the plastic end cover 6 is used in the part of the end cover contacting with the seawater, when in actual use, the plastic end cover 6 contacts with the seawater, the intensity of metal electrochemical reaction is reduced, the cast iron end cover becomes thinner, the weight of the end cover is reduced, meanwhile, the plastic end cover 6 can be replaced, the replacement is very convenient, and the later maintenance cost is greatly reduced.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims (3)

1. Seawater corrosion resistant cooler end cover, characterized in that, the end cover includes: the plastic end cover is attached to the inner side face of the metal end cover, and the metal end cover is fixedly connected with the plastic end cover through a buckle structure;

the buckle structure comprises an annular clamping groove fixed on the metal end cover and an annular clamping protrusion fixed on the plastic end cover, and the clamping protrusion is clamped into the clamping groove.

2. The seawater corrosion resistant cooler end cap of claim 1, wherein the locking groove and the locking protrusion are semi-circular.

3. The seawater corrosion resistant cooler end cap of claim 1 wherein a flange is provided at an edge of said metal end cap.

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