CN210533119U

CN210533119U - Anticorrosive stoving heat exchanger

Info

Publication number: CN210533119U
Application number: CN201921398395.XU
Authority: CN
Inventors: 闫立平
Original assignee: GUANGZHOU AOTAI REFRIGERATION EQUIPMENT CO Ltd
Current assignee: GUANGZHOU AOTAI REFRIGERATION EQUIPMENT CO Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-15
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses an anticorrosive drying heat exchanger, including the frame, set up in the frame, vertically place and the fin of transverse arrangement, with the frame embedding installation, and run through the heat exchange tube of all fins, the heat exchange tube includes the inlayer body that is equipped with the hot medium, sets up the compound anticorrosive coating in the inlayer body outside, compound anticorrosive coating includes the zinc alloy net of laminating with the outer surface of inlayer body, wraps up the dope layer in the inlayer body outside; can play the effect that increases dope layer structural strength through setting up the zinc alloy net in compound anticorrosive coating, can play the effect of protection to inner tube body and fin as galvanic cell's positive pole after the dope layer breaks, improved compound anticorrosive coating's heat conduction effect simultaneously, so the utility model has the advantages of the anticorrosive effect is better, and the anticorrosive coating is not fragile, and heat conductivility is better.

Description

Anticorrosive stoving heat exchanger

Technical Field

The utility model particularly relates to an anticorrosive stoving heat exchanger

Technical Field

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied.

The drying heat exchanger is mostly used in a humid environment, and some corrosive substances exist in the environment or in a dried object, so that the heat exchanger is corroded, the service life of the heat exchanger is shortened, and therefore the heat exchanger needs to be subjected to anticorrosion treatment.

Disclosure of Invention

In view of this, the utility model aims at providing an anticorrosive stoving heat exchanger that anticorrosive effect is better, and the anticorrosive coating is not fragile, and heat conductivility is better.

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

an anticorrosion drying heat exchanger comprises an outer frame, fins which are vertically arranged and transversely arranged and are arranged in the outer frame, and heat exchange tubes which are embedded in the outer frame and penetrate through all the fins, wherein each heat exchange tube comprises an inner layer tube body filled with a heat medium, and a composite anticorrosion layer arranged on the outer side of the inner layer tube body, the composite anticorrosion layer comprises a zinc alloy net attached to the outer surface of the inner layer tube body, and a coating layer wrapped on the outer side of the inner layer tube body,

preferably, the method comprises the following steps: the net strips of the zinc alloy net are arranged in a rectangular shape.

Preferably, the method comprises the following steps: the meshes of the zinc alloy mesh are rhombic.

Preferably, the method comprises the following steps: the fin is made of copper, and a common anticorrosive layer is arranged on the outer surface of the fin.

Preferably, the method comprises the following steps: the fin is provided with expansion holes, the number of the expansion holes is determined according to the number of the heat exchange tubes, and the inner wall of each expansion hole is not provided with a common anticorrosive coating.

Preferably, the method comprises the following steps: the frame is provided with a mounting hole, and the inner side of the mounting hole is provided with an anti-scraping layer.

The utility model discloses technical effect mainly embodies in following aspect: the zinc alloy net arranged in the composite anticorrosive layer can play a role in enhancing the structural strength of the coating layer, can be used as the anode of the primary battery to protect the inner-layer tube body and the fins after the coating layer is broken, and simultaneously improves the heat conduction effect of the composite anticorrosive layer, so the composite anticorrosive coating has the advantages of better anticorrosive effect, difficult damage of the anticorrosive layer and better heat conduction performance.

Drawings

FIG. 1 is a structural diagram of an anticorrosion drying heat exchanger of the utility model;

FIG. 2 is a view showing a structure of a mounting hole of the outer frame of FIG. 1;

FIG. 3 is a view of the expanding holes of the fin of FIG. 1;

FIG. 4 is a structural view of the heat exchange tube of FIG. 1;

fig. 5 is a structural view of the zinc alloy mesh of fig. 4.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

Examples

An anticorrosion drying heat exchanger is disclosed, as shown in figure 1, comprising an outer frame 1, fins 2 which are vertically arranged and transversely arranged in the outer frame 1, and heat exchange tubes 3 which are embedded in the outer frame 1 and penetrate through all the fins 2, wherein the fins 2 are used for conducting and releasing heat of the heat exchange tubes 3 to surrounding media.

As shown in fig. 2, the outer frame 1 is provided with a mounting hole 11, the inside of the mounting hole is provided with a scratch-proof layer 111, and the scratch-proof clinker is solid plastic with a small friction coefficient, such as polytetrafluoroethylene.

As shown in fig. 3, the fin 2 is made of copper, a common anticorrosive layer 21 is arranged on the outer surface of the fin 2, expansion holes 22 are formed in the fin 2, the number of the expansion holes 22 is determined according to the number of the heat exchange tubes 3, and no common anticorrosive coating 21 is formed on the inner wall of each expansion hole, so that the heat dissipation tube 3 breaks through the coating layer 322 on the expansion-type zinc alloy mesh 321, the zinc alloy mesh 321 is in direct contact with the inner wall of each expansion hole 22, the heat conduction efficiency is improved, and the zinc alloy mesh 321 can perform electrochemical protection on the fin.

As shown in fig. 4, the heat exchange tube 3 includes an inner tube 31 containing a heat medium, and a composite corrosion protection layer 32 disposed on the outer side of the inner tube 31, where the composite corrosion protection layer 32 includes a zinc alloy mesh 321 attached to the outer surface 31 of the inner tube, and a paint layer 322 wrapped on the outer side of the inner tube 31, the inner tube 31 is a copper tube, the zinc alloy mesh 321 can improve the structural strength of the composite corrosion protection layer 32, and when the paint layer 322 is broken, a corrosion medium contacts the inner tube 31 and the zinc alloy mesh 321 to form a galvanic cell, the zinc alloy mesh 321 with a lower electrode potential is corroded as a protective electrode, and the copper inner tube 31 is protected from corrosion. The coating layer 322 is attached to the outer surface of the inner pipe body 31 and the outer surface of the zinc alloy mesh 321, and the thickness of the coating layer 322 is slightly larger than that of the zinc alloy mesh 321.

As shown in fig. 5, the mesh strips of the zinc alloy mesh 321 are arranged in a rectangular shape. The purpose is to make the zinc alloy net 321 better fit with the inner pipe 31 and increase the contact area between the zinc alloy net 321 and the paint layer 322.

The material of the coating layer 322 and the common anticorrosive coating 21 is high-temperature epoxy modified urushiol.

The specific implementation method comprises the following steps: increase anticorrosive coating on heat exchanger surface is the most extensive heat exchanger anticorrosion scheme of using at present, but the ageing problem of wearing and tearing all exists in ordinary method coating, the utility model discloses a setting is at the effectual above-mentioned problem of having solved of compound anticorrosive coating 32 of heat exchange tube 3 surface, and the zinc alloy net 321 of setting in compound anticorrosive coating 32 can play the effect that increases dope layer 322 structural strength, can play the effect of protection to inner tube 31 and fin 2 as the positive pole of galvanic cell after dope layer 322 breaks, has improved compound anticorrosive coating 32's heat conduction effect simultaneously.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides an anticorrosive stoving heat exchanger, includes the frame, sets up in the frame, vertically places and transverse arrangement's fin, with frame embedding installation and run through the heat exchange tube of all fins, its characterized in that: the heat exchange tube comprises an inner tube body filled with a heat medium and a composite anticorrosive layer arranged on the outer side of the inner tube body, wherein the composite anticorrosive layer comprises a zinc alloy net attached to the outer surface of the inner tube body and a coating layer wrapped on the outer side of the inner tube body.

2. An anticorrosive stoving heat exchanger of claim 1, characterized in that: the net strips of the zinc alloy net are arranged in a rectangular shape.

3. An anticorrosive stoving heat exchanger of claim 1, characterized in that: the meshes of the zinc alloy mesh are rhombic.

4. An anticorrosive stoving heat exchanger of claim 1, characterized in that: the fin is made of copper, and a common anticorrosive layer is arranged on the outer surface of the fin.

5. An anticorrosive stoving heat exchanger of claim 1, characterized in that: the fin is provided with expansion holes, the number of the expansion holes is determined according to the number of the heat exchange tubes, and the inner wall of each expansion hole is not provided with a common anticorrosive coating.

6. An anticorrosive stoving heat exchanger of claim 1, characterized in that: the frame is provided with a mounting hole, and the inner side of the mounting hole is provided with an anti-scraping layer.