Anti-corrosion seawater heat exchanger

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to an anti-corrosion seawater heat exchanger which comprises a seawater fluid mechanism. The seawater fluid mechanism comprises a fluid inlet pipe, a fluid outlet pipe is fixedly mounted at the bottom of the fluid inlet pipe, and a conversion pipe is fixedly connected into the fluid inlet pipe and the fluid outlet pipe; through the arrangement of the seawater fluid mechanism, seawater needing to be subjected to heat exchange is conveniently introduced, the seawater fluid mechanism is used for directly making contact with the seawater, the epoxy resin coating is arranged on the surface, making direct contact with the seawater, of the inner side of the seawater fluid mechanism, and the corrosion resistance of seawater side metal can be enhanced; the seawater fluid mechanism is made of a monel alloy layer, the material can further enhance the seawater corrosion resistance of the whole mechanism, the outer side of the seawater fluid mechanism is covered with a carbon steel layer, the material has the corrosion resistance and high rigidity, and the strength and stability of the whole mechanism can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an anti-corrosion seawater heat exchanger. Background Art

[0002] Seawater contains a large amount of impurities, some of which are corrosive media themselves, and some of which are converted into corrosive media during the processing process. The corrosion problem of seawater heat exchangers has become a difficult problem, and it is difficult to find a high-quality and low-cost seawater heat exchanger.

[0003] For example, a corrosion-resistant seawater heat exchanger with publication number CN207280252U comprises a cylinder made of austenite-ferrite steel, a heat exchange tube made of nickel-copper alloy, and left and right tube sheets, wherein the left and right tube sheets are installed on both sides of the cylinder, and the heat exchange tube is installed between the left and right tube sheets, and is characterized in that: a refrigerant inlet and a refrigerant outlet are arranged on the same side of the cylinder, the heat exchange tube comprises a refrigerant inlet pipe and a refrigerant outlet pipe, the refrigerant inlet pipe is connected to the refrigerant inlet, the refrigerant outlet pipe is connected to the refrigerant outlet, a refrigerant connecting mechanism is arranged on the other side of the cylinder, the refrigerant inlet pipe and the refrigerant outlet pipe are respectively connected to the refrigerant connecting mechanism, a seawater inlet and a seawater outlet are arranged above the cylinder, and the contact surfaces of the heat exchange tube, the cylinder and the seawater are all provided with corrosion-resistant plastic. The utility model is effectively resistant to seawater corrosion and effectively reduces the operating cost of the equipment.

[0004] However, based on the working principle proposed in the above patent, the applicant believes that although the above device can reduce the operating cost to a certain extent, in actual use, the overall rigidity of the device is poor, which can easily affect the service life of the entire equipment when used.

[0005] Therefore, in order to solve the above problems, an anti-corrosion seawater heat exchanger is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the prior art has the disadvantages of weak rigidity and corrosion resistance, for which we propose an anti-corrosion seawater heat exchanger.

[0007] The utility model adopts the following technical solution to solve the technical problem: an anti-corrosion seawater heat exchanger, comprising a seawater fluid mechanism; the seawater fluid mechanism comprises a fluid inlet pipe, a fluid outlet pipe is fixedly installed at the bottom of the fluid inlet pipe, a conversion tube is fixedly connected inside the fluid inlet pipe and the fluid outlet pipe, a dividing chamber plate is fixedly installed at the middle part of the inner cavity of the conversion tube, an outer flange plate is fixedly installed on the inner side of the conversion tube, a circulation tube bundle is fixedly installed on the inner side of the outer flange plate, a baffle is fixedly installed on the surface of the circulation tube bundle, the seawater fluid mechanism is in direct contact with seawater, an epoxy resin coating is provided on the inner surface of the seawater fluid mechanism, a monel alloy layer is provided on the outer layer of the epoxy resin coating, and a carbon steel layer is provided on the outer side of the monel alloy layer.

[0008] Preferably, an inlet cavity is arranged on the upper side of the cavity plate, and an outlet cavity is arranged on the lower side of the cavity plate.

[0009] Preferably, a liquid inlet hole is opened on the surface of the outer flange plate at the inlet cavity, and a liquid outlet hole is opened on the surface of the outer flange plate at the outlet cavity.

[0010] Preferably, the inner side of the outer flange plate is connected to the inner flange plate via sealing screws, and the inner side of the inner flange plate is fixedly mounted with an outer cover pipe.

[0011] Preferably, a cold flow inlet pipe is fixedly mounted on one side of the front face of the outer cover pipe, and a cold flow outlet pipe is fixedly mounted on one side of the cold flow inlet pipe.

[0012] Preferably, the other side of the inner flange plate is connected to a side cover tube via a sealing screw, a lower support block is fixedly installed at the bottom of the outer cover tube, and an upper support block is fixedly installed at the top of the outer cover tube.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model is convenient for introducing seawater required for heat exchange by setting a seawater fluid mechanism. The seawater fluid mechanism is used to directly contact with seawater. The surface of the inner side of the seawater fluid mechanism that is in direct contact with seawater is provided with an epoxy resin coating, which can enhance the corrosion resistance of the metal on the seawater side. The seawater fluid mechanism is made of a monel alloy layer, which can further enhance the seawater corrosion resistance of the overall mechanism. The outer side of the seawater fluid mechanism is covered with a carbon steel layer, which has strong rigidity in addition to the corrosion resistance, and can ensure the strength and stability of the overall mechanism.

[0015] 2. The utility model can divide the conversion tube into two chambers by setting the inlet cavity and the outlet cavity, so as to guide the seawater to form a circulating flow in the circulation tube bundle. By setting the liquid inlet hole and the liquid outlet hole, the seawater can be guided to enter and exit the circulation tube bundle respectively. By setting the inner flange plate and the outer flange plate, a closed space is formed between the outer cover tube and the circulation tube bundle. By setting the outer cover tube, it is convenient to introduce cooling water flow into the overall heat exchanger structure. By setting the cold flow inlet pipe and the cold flow outlet pipe, it is convenient to guide the cooling water flow to enter and exit the outer cover pipe respectively. By setting the lower support block and the upper top block, the stability of the overall device after installation is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a frontal perspective schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional back view of the overall structure of the utility model;

[0019] Figure 3 It is a cross-sectional enlarged stereoscopic schematic diagram of the circulation tube bundle structure of the utility model;

[0020] Figure 4 It is a partially enlarged three-dimensional schematic diagram of the outer cover tube structure of the utility model;

[0021] Figure 5 It is a cross-sectional enlarged stereoscopic schematic diagram of the conversion tube structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the cross-sectional analysis of the seawater fluid mechanism structure interlayer of the utility model.

[0023] In the figure: 1, seawater fluid mechanism; 2, fluid inlet pipe; 3, fluid outlet pipe; 4, conversion pipe; 5, chamber plate; 6, outer flange plate; 7, circulation tube bundle; 8, baffle plate; 9, epoxy resin coating; 10, monel alloy layer; 11, carbon steel layer; 12, chamber inlet; 13, outlet chamber; 14, liquid inlet hole; 15, liquid outlet hole; 16, inner flange plate; 17, outer cover pipe; 18, cold flow inlet pipe; 19, cold flow outlet pipe; 20, side cover pipe; 21, lower support block; 22, upper top block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The following is combined with Figure 1-6 To further explain this application in detail,

[0026] The present application embodiment discloses a corrosion-resistant seawater heat exchanger. Figure 5 and Figure 6 A corrosion-resistant seawater heat exchanger includes a seawater fluid mechanism 1; the seawater fluid mechanism 1 includes a fluid inlet pipe 2, a fluid outlet pipe 3 is fixedly installed at the bottom of the fluid inlet pipe 2, a conversion pipe 4 is fixedly connected to the fluid inlet pipe 2 and the fluid outlet pipe 3, a chamber dividing plate 5 is fixedly installed in the middle part of the inner cavity of the conversion pipe 4, an outer flange plate 6 is fixedly installed on the inner side of the conversion pipe 4, a circulation tube bundle 7 is fixedly installed on the inner side of the outer flange plate 6, a baffle 8 is fixedly installed on the surface of the circulation tube bundle 7, the seawater fluid mechanism 1 is in direct contact with seawater, and the inner surface of the seawater fluid mechanism 1 is provided with There is an epoxy resin coating 9, the outer layer of the epoxy resin coating 9 is provided with a monel alloy layer 10, and the outer side of the monel alloy layer 10 is provided with a carbon steel layer 11; the seawater fluid mechanism 1 is convenient for introducing seawater required for heat exchange, the seawater fluid mechanism 1 is used to directly form contact with seawater, and the surface of the inner side of the seawater fluid mechanism 1 that is in direct contact with seawater is provided with an epoxy resin coating 9, which can enhance the corrosion resistance of the metal on the seawater side, and the material of the seawater fluid mechanism 1 includes the monel alloy layer 10, which can further enhance the seawater corrosion resistance of the overall mechanism.

[0027] Reference Figure 1 and Figure 5 An inlet cavity 12 is provided on the upper side of the cavity dividing plate 5, and an outlet cavity 13 is provided on the lower side of the cavity dividing plate 5; the conversion tube 4 can be divided into two chambers by the inlet cavity 12 and the outlet cavity 13, so as to guide the seawater to form a circulating flow in the circulation tube bundle 7.

[0028] Reference Figure 2 and Figure 5 A liquid inlet hole 14 is opened on the surface of the outer flange plate 6 at the inlet cavity 12, and a liquid outlet hole 15 is opened on the surface of the outer flange plate 6 at the outlet cavity 13; seawater can be guided into and out of the circulation tube bundle 7 through the liquid inlet hole 14 and the liquid outlet hole 15 respectively.

[0029] Reference Figure 3 and Figure 4The inner side of the outer flange plate 6 is connected to the inner flange plate 16 by sealing screws, and the inner side of the inner flange plate 16 is fixedly installed with an outer cover pipe 17; the inner flange plate 16 and the outer flange plate 6 facilitate the formation of a closed space between the outer cover pipe 17 and the circulation tube bundle 7, and the outer cover pipe 17 facilitates the introduction of cooling water flow into the overall heat exchanger structure.

[0030] Reference Figure 1 and Figure 2 A cold flow inlet pipe 18 is fixedly installed on one side of the front of the outer cover tube 17, and a cold flow outlet pipe 19 is fixedly installed on one side of the cold flow inlet pipe 18; the cold flow inlet pipe 18 and the cold flow outlet pipe 19 are used to guide the cooling water flow into the outer cover tube 17 and out of the outer cover tube 17 respectively.

[0031] Reference Figure 1 and Figure 2 The other side of the inner flange plate 16 is connected to a side cover tube 20 through a sealing screw, a lower support block 21 is fixedly installed at the bottom of the outer cover tube 17, and an upper support block 22 is fixedly installed at the top of the outer cover tube 17; the lower support block 21 and the upper support block 22 facilitate enhancing the stability of the overall device after installation.

[0032] Working principle: In this device, the seawater fluid mechanism 1 is used to directly come into contact with seawater. The inner surface of the seawater fluid mechanism 1 that is in direct contact with seawater is provided with an epoxy resin coating 9, which can enhance the corrosion resistance of the metal on the seawater side. The seawater fluid mechanism 1 is made of a material including a monel alloy layer 10, which can further enhance the seawater corrosion resistance of the overall mechanism. The outer side of the seawater fluid mechanism 1 is covered with a carbon steel layer 11, which, in addition to having corrosion resistance, also has strong rigidity, thereby ensuring the strength and stability of the overall mechanism.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An anti-corrosion seawater heat exchanger, characterized in that: The invention comprises a seawater fluid mechanism (1); the seawater fluid mechanism (1) comprises a fluid inlet pipe (2); a fluid outlet pipe (3) is fixedly mounted at the bottom of the fluid inlet pipe (2); a conversion pipe (4) is fixedly connected to the fluid inlet pipe (2) and the fluid outlet pipe (3); a chamber dividing plate (5) is fixedly mounted at the middle part of the inner cavity of the conversion pipe (4); an outer flange plate (6) is fixedly mounted on the inner side of the conversion pipe (4); a circulation tube bundle (7) is fixedly mounted on the inner side of the outer flange plate (6); a baffle plate (8) is fixedly mounted on the surface of the circulation tube bundle (7); the seawater fluid mechanism (1) is in direct contact with seawater; an epoxy resin coating (9) is provided on the inner surface of the seawater fluid mechanism (1); a monel alloy layer (10) is provided on the outer layer of the epoxy resin coating (9); and a carbon steel layer (11) is provided on the outer side of the monel alloy layer (10).

2. The anti-corrosion seawater heat exchanger according to claim 1, characterized in that: An inlet cavity (12) is provided on the upper side of the cavity dividing plate (5), and an outlet cavity (13) is provided on the lower side of the cavity dividing plate (5).

3. The anti-corrosion seawater heat exchanger according to claim 2, characterized in that: A liquid inlet hole (14) is provided on the surface of the outer flange plate (6) at the inlet cavity (12), and a liquid outlet hole (15) is provided on the surface of the outer flange plate (6) at the outlet cavity (13).

4. The anti-corrosion seawater heat exchanger according to claim 1, characterized in that: The inner side of the outer flange plate (6) is connected to an inner flange plate (16) via sealing screws, and an outer cover tube (17) is fixedly mounted on the inner side of the inner flange plate (16).

5. The anti-corrosion seawater heat exchanger according to claim 4, characterized in that: A cold flow inlet pipe (18) is fixedly mounted on one side of the front face of the outer cover pipe (17), and a cold flow outlet pipe (19) is fixedly mounted on one side of the cold flow inlet pipe (18).

6. The anti-corrosion seawater heat exchanger according to claim 4, characterized in that: The other side of the inner flange plate (16) is connected to a side cover tube (20) via a sealing screw, a lower support block (21) is fixedly mounted on the bottom of the outer cover tube (17), and an upper support block (22) is fixedly mounted on the top of the outer cover tube (17).

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