Anti-clogging condenser

Abstract

The present invention relates to the technical field of ship condensers, and particularly to an anti-blocking condenser. The condenser includes a heat exchange chamber, which has a heat source inlet and a heat source outlet. A heat exchange tube is provided in the heat exchange chamber. The heat exchange tube penetrates through the heat exchange chamber and forms an inlet and an outlet outside the heat exchange chamber. A heat conduction structure is provided at a position near the heat source inlet inside the heat exchange chamber. The heat conduction structure penetrates through the heat exchange chamber and extends to the inlet position of the heat exchange tube. By arranging the heat conduction structure at the heat source inside the condenser, the heat conduction structure conducts the steam heat to the inlet of the heat exchange tube outside the heat exchange chamber, heats the broken ice at the inlet of the heat exchange tube, makes full use of the heat of the condenser, effectively prevents the accumulation of broken ice, avoids the defect of the interruption of the cooling water supply caused by the blockage of the broken ice at the inlet of the heat exchange tube, realizes effective de-icing, further ensures the smooth operation inside the heat exchange tube, ensures the normal operation of the condenser in the broken ice environment, and improves the practicability of the condenser.

Description

Technical Field

[0001] The present invention relates to the technical field of ship condensers, and particularly to an anti-blocking condenser. Background Art

[0002] During the polar ice-breaking navigation of a ship, the mixture of broken ice and seawater easily enters the condenser through the cooling water pipeline. Since multiple heat exchange tube holes at the tube sheet form a small-hole filtration structure, and the tube sheet is thick with a large thermal resistance and a relatively low temperature at the tube sheet, the broken ice cannot be melted, resulting in the easy accumulation of broken ice at the head tube sheet, blocking the cooling water supply of the heat exchange tubes and affecting the normal operation of the condenser; in addition, the broken ice that enters the inside of the heat exchange tubes of the condenser may get stuck in the tubes due to the change of its posture during the flow of seawater inside the heat exchange tubes, forming an "ice plug" and gradually accumulating to block the cooling water supply, causing the power system to fail to operate normally. Summary of the Invention

[0003] The present invention provides an anti-blocking condenser to solve the defect in the prior art that the cooling water supply is blocked due to the blockage of broken ice at the inlet of the heat exchange tubes of the condenser and inside the tubes, and to realize the function of automatically melting the broken ice of the condenser to ensure the normal supply of cooling water to the heat exchange tubes.

[0004] The present invention provides an anti-blocking condenser, which includes a heat exchange chamber having a heat source inlet and a heat source outlet. A heat exchange tube is provided inside the heat exchange chamber. The heat exchange tube penetrates through the heat exchange chamber and forms an inlet and an outlet outside the heat exchange chamber. A heat conduction structure is provided inside the heat exchange chamber near the heat source inlet, and the heat conduction structure penetrates through the heat exchange chamber and extends to the position of the inlet of the heat exchange tube.

[0005] According to the anti-blocking condenser provided by the present invention, a head tube sheet is provided at the end of the heat exchange chamber. The heat exchange tube penetrates through the head tube sheet, and the heat conduction structure penetrates through the head tube sheet and is arranged adjacent to the inlet of the heat exchange tube.

[0006] According to the anti-blocking condenser provided by the present invention, the heat conduction structure includes a heat pipe evaporation end and a heat pipe condensation end. The heat pipe evaporation end is arranged inside the heat exchange chamber near the heat source inlet, the heat pipe condensation end is arranged at one end of the head tube sheet away from the heat exchange chamber and is adjacent to the inlet of the heat exchange tube, and the heat pipe evaporation end penetrates through the head tube sheet and is connected to the heat pipe condensation end.

[0007] According to the anti-blocking condenser provided by the present invention, the heat pipe evaporation end includes a plurality of straight round tubes which are parallel to the heat exchange tube, and the straight round tubes are arranged on one side of the heat exchange tube close to the heat source inlet.

[0008] According to the anti-blocking condenser provided by the present invention, the condensation end of the heat pipe is a plate-like structure attached to the surface of the head tube sheet, and through holes are provided on the surface of the condensation end of the heat pipe, and the heat exchange tube extends into the through holes.

[0009] According to the anti-blocking condenser provided by the present invention, a pointed convex structure is provided on the side of the condensation end of the heat pipe away from the head tube sheet, and the pointed convex structure is arranged alternately with the heat exchange tube.

[0010] According to the anti-blocking condenser provided by the present invention, the heat conduction structure further includes heat conduction bumps, and a plurality of the heat conduction bumps are arranged alternately on the side of the condensation end of the heat pipe away from the head tube sheet.

[0011] According to the anti-blocking condenser provided by the present invention, the diameter of the heat exchange tube increases in the direction from the inlet of the heat exchange tube to the outlet of the heat exchange tube.

[0012] According to the anti-blocking condenser provided by the present invention, the wall thickness of the heat exchange tube increases in the direction from the inlet of the heat exchange tube to the outlet of the heat exchange tube.

[0013] According to the anti-blocking condenser provided by the present invention, a water inlet chamber is provided at the inlet end of the heat exchange tube, a cold source inlet is provided in the water inlet chamber, a water outlet chamber is provided at the outlet end of the heat exchange tube, and a cold source outlet is provided in the water outlet chamber.

[0014] The anti-blocking condenser provided by the present invention is provided with a heat exchange chamber, the heat exchange chamber has a heat source inlet and a heat source outlet, a heat exchange tube is provided in the heat exchange chamber, the heat exchange tube penetrates through the heat exchange chamber and forms an inlet and an outlet outside the heat exchange chamber, a heat conduction structure is provided at a position close to the heat source inlet inside the heat exchange chamber, and the heat conduction structure penetrates through the heat exchange chamber and extends to the position of the inlet of the heat exchange tube. By providing a heat conduction structure at the heat source inside the condenser, the heat conduction structure conducts the steam heat to the inlet of the heat exchange tube outside the heat exchange chamber, heats the broken ice at the inlet of the heat exchange tube, makes full use of the heat of the condenser, effectively prevents the accumulation of broken ice, avoids the defect of the interruption of the cooling water supply caused by the blockage of the broken ice at the inlet of the heat exchange tube, realizes effective ice removal, further ensures the smooth operation inside the heat exchange tube, ensures the normal operation of the condenser in the broken ice environment, and improves the practicability of the condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the anti-blocking condenser provided by the present invention;

[0017] Figure 2 is a schematic diagram of the heat conduction structure of the anti-blocking condenser provided by the present invention( Figure 1 and an enlarged view of part A in it);

[0018] Figure 3 is an internal cross-sectional view of the heat exchange chamber of the anti-blocking condenser provided by the present invention;

[0019] Reference numerals:

[0020] 1: Heat exchange chamber; 11: Heat source inlet; 12: Heat source outlet;

[0021] 2: Head tube sheet; 3: Water inlet chamber; 31: Cold source inlet;

[0022] 4: Water outlet chamber; 41: Cold source outlet; 5: Heat conduction structure;

[0023] 51: Heat pipe evaporation end; 52: Heat pipe condensation end; 6: Heat exchange tube;

[0024] 7: Convex structure. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] As Figures 1 - 3 shown, an embodiment of the present invention provides an anti-blocking condenser, which mainly includes a heat exchange chamber 1. One end of the heat exchange chamber 1 has a heat source inlet 11, and the other end of the heat exchange chamber 1 has a heat source outlet 12. A heat exchange tube 6 is provided in the heat exchange chamber 1. The heat exchange tube 6 penetrates through the heat exchange chamber 1 and communicates with the outside of the heat exchange chamber 1, and forms an inlet and an outlet outside the heat exchange chamber 1. Hot steam is introduced into the heat exchange chamber 1 through the heat source inlet 11, and seawater is introduced into the interior of the heat exchange tube 6 through the inlet. The hot steam exchanges heat with the seawater in the heat exchange tube 6 inside the heat exchange chamber 1. The hot steam after heat exchange is discharged from the heat source outlet 12 out of the heat exchange chamber 1, and the seawater then discharges from the outlet of the heat exchange tube 6, realizing the heat exchange function of the condenser.

[0027] Specifically, as Figure 1As shown in the figure, the anti-blocking condenser provided in this embodiment is provided with head tube sheets 2 on both sides of the heat exchange chamber 1, and the head tube sheets 2 effectively seal and fix the heat exchange chamber 1 and the heat exchange tubes 6. At both ends of the heat exchange chamber 1, an inlet water chamber 3 is arranged outside the head tube sheet 2 at one end. The inlet water chamber 3 is provided with a cold source inlet 31. The heat exchange tubes 6 penetrate through the head tube sheet 2 and are communicated with the inlet water chamber 3. The inlets of the heat exchange tubes 6 are located on the surface of the head tube sheet 2 inside the inlet water chamber 3. At the other end, an outlet water chamber 4 is arranged outside the head tube sheet 2. The outlet water chamber 4 is provided with a cold source outlet 41. The other ends of the heat exchange tubes 6 penetrate through the head tube sheet 2 and are communicated with the outlet water chamber 4. The outlets of the heat exchange tubes 6 are located on the surface of the head tube sheet 2 inside the outlet water chamber 4.

[0028] Since seawater enters the inlet water chamber 3, it is easy for broken ice to accumulate in the inlet water chamber 3, and the broken ice is easy to block at the inlet position of the heat exchange tube 6, resulting in the obstruction of the cooling water supply of the heat exchange tube 6. Therefore, in the embodiment of the present invention, a heat conduction structure 5 is provided at a position close to the heat source inlet 11 inside the heat exchange chamber 1. The heat conduction structure 5 penetrates through the heat exchange chamber 1 and the head tube sheet 2 and extends into the inlet water chamber 3. Further, the heat conduction structure 5 extends to the inlet position of the heat exchange tube 6 to continuously heat the broken ice at the inlet position of the heat exchange tube 6 and melt the broken ice.

[0029] It is worth mentioning that the heat conduction structure 5 is made of a material with high thermal conductivity, which can conduct the heat of the hot steam at the heat source inlet 11 to the inlet position of the heat exchange tube 6, effectively utilizes the heat energy, effectively heats the broken ice accumulated at the inlet position of the heat exchange tube 6, and prevents the heat exchange tube 6 from being blocked.

[0030] Specifically, as Figure 2 shown, the heat conduction structure 5 includes a heat pipe evaporation end 51 and a heat pipe condensation end 52. The heat pipe evaporation end 51 includes a plurality of straight round tubes, and the straight round tubes are parallel to the heat exchange tubes 6. As Figure 3 shown, the straight round tubes are arranged on the side of the heat exchange tubes 6 close to the heat source inlet 11 and can effectively receive the heat of the hot steam at the heat source inlet 11. The heat pipe condensation end 52 is arranged at one end of the head tube sheet 2 far from the heat exchange chamber 1 and is adjacent to the inlet of the heat exchange tube 1. Preferably, the heat pipe condensation end 52 is a plate-like structure attached to the surface of the head tube sheet 2. The heat pipe condensation end 52 is laid on the entire surface of the head tube sheet 2, increasing the area of the heat source and being able to heat the broken ice over a large area. Through holes are provided on the surface of the heat pipe condensation end 52, and the heat exchange tubes 6 extend into the through holes, effectively ensuring the contact between the heat pipe condensation end 52 and the heat exchange tubes 6, expanding heat dissipation, and improving the broken ice melting effect. The heat pipe evaporation end 51 penetrates through the head tube sheet 2 and is connected to the heat pipe condensation end 52. Here, the heat pipe evaporation end 51 and the heat pipe condensation end 52 can preferably be an integral structure for facilitating heat conduction.

[0031] In the embodiment of the present invention, a plurality of heat pipe evaporation ends 51 are arranged at the heat source inlet 11 inside the condenser. The heat pipe evaporation ends 51 conduct the steam heat to the heat pipe condensation ends 52 in the water inlet chamber 3. The heat pipe condensation ends 52 are arranged in contact with the surface of the head tube sheet 2 and are adjacent to the inlet of the heat exchange tube 6, continuously heating the broken ice at the inlet of the heat exchange tube 6, making full use of the heat of the condenser, effectively preventing the broken ice from accumulating at the inlet of the heat exchange tube 6, avoiding the defect that the broken ice blocks at the inlet of the heat exchange tube and causes the cooling water supply to be cut off, realizing effective deicing. The heating effect of the heat conduction structure 5 further ensures that there is no broken ice accumulation inside the heat exchange tube 6, ensures the smooth operation inside the heat exchange tube 6, ensures the normal operation of the condenser in the broken ice environment, and improves the practicability of the condenser.

[0032] As a further improvement, in this embodiment, as Figure 2 and Figure 3 shown, a pointed convex structure 7 is provided on the side of the heat pipe condensation end 52 away from the head tube sheet 2. The pointed convex structure 7 is arranged at intervals with the inlet of the heat exchange tube 6. The pointed convex structure 7 is arranged in the non-porous area between the heat exchange tube 6 and the heat pipe condensation end 52. When a large piece of broken ice enters the water inlet chamber 3 of the condenser, the pointed convex structure 7 can prevent the broken ice from closely adhering to the head tube sheet 2, construct a gap between the broken ice and the head tube sheet 2 to keep the seawater flowing, and prevent the large piece of broken ice from blocking at the inlet of the heat exchange tube 6 and causing the cooling water supply to be cut off.

[0033] On this basis, the pointed convex structure 7 can also be set as a part of the heat conduction structure 5, and the pointed convex structure 7 is set as a heat conduction convex block. The heat conduction convex block and the heat conduction structure 5 are both made of materials with high heat conductivity. The heat of the heat pipe condensation end 52 can continue to be transferred to the heat conduction convex block, and the heat conduction convex block can further heat the larger broken ice to improve the melting effect of the broken ice.

[0034] Furthermore, in this embodiment, the diameter of the heat exchange tube 6 increases from the inlet of the heat exchange tube 6 to the outlet direction of the heat exchange tube 6. The cross-sectional area of the movement channel of the broken ice in the heat exchange tube 6 gradually expands, preventing it from getting stuck in the tube to form an ice plug and hindering the passage of the cooling water, ensuring the fluidity of the heat exchange tube 6, and effectively preventing the inside of the heat exchange tube 6 from being blocked.

[0035] Still further, the wall thickness of the heat exchange tube 6 increases from the inlet of the heat exchange tube 6 to the outlet direction of the heat exchange tube 6. By thinning the wall thickness at the inlet of the heat exchange tube 6, the melting speed of the broken ice inside the heat exchange tube 6 can be accelerated.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-blocking condenser, characterized in that, It includes a heat exchange chamber (1), the heat exchange chamber (1) has a heat source inlet (11) and a heat source outlet (12), a heat exchange tube (6) is arranged in the heat exchange chamber (1), the heat exchange tube (6) penetrates through the heat exchange chamber (1) and forms an inlet and an outlet outside the heat exchange chamber (1), a heat conduction structure (5) is arranged inside the heat exchange chamber (1) near the position of the heat source inlet (11), and the heat conduction structure (5) penetrates through the heat exchange chamber (1) and extends to the position of the inlet of the heat exchange tube (6); A head tube sheet (2) is arranged at the end of the heat exchange chamber (1), the heat exchange tube (6) penetrates through the head tube sheet (2), and the heat conduction structure (5) penetrates through the head tube sheet (2) and is arranged adjacent to the inlet of the heat exchange tube (6); The heat conduction structure (5) includes a heat pipe evaporation end (51) and a heat pipe condensation end (52), the heat pipe evaporation end (51) is arranged inside the heat exchange chamber (1) near the position of the heat source inlet (11), the heat pipe condensation end (52) is arranged at one end of the head tube sheet (2) away from the heat exchange chamber (1) and is arranged adjacent to the inlet of the heat exchange tube (1), and the heat pipe evaporation end (51) penetrates through the head tube sheet (2) and is connected to the heat pipe condensation end (52); A pointed convex structure (7) is arranged on one side of the heat pipe condensation end (52) away from the head tube sheet (2), and the pointed convex structure (7) is arranged at intervals with the heat exchange tube (6).

2. The anti-clogging condenser according to claim 1, characterized in that, The heat pipe evaporation end (51) includes a plurality of straight round tubes, the straight round tubes are parallel to the heat exchange tube (6), and the straight round tubes are arranged on one side of the heat exchange tube (6) close to the heat source inlet (11).

3. The anti-blocking condenser according to claim 1, characterized in that, The heat pipe condensation end (52) is a plate-like structure attached to the surface of the head tube sheet (2), through holes are arranged on the surface of the heat pipe condensation end (52), and the heat exchange tube (6) extends into the through holes.

4. The anti-blocking condenser according to claim 1, wherein, The heat conduction structure (5) further includes heat conduction bumps, and a plurality of the heat conduction bumps are arranged at intervals on one side of the heat pipe condensation end (52) away from the head tube sheet (2).

5. The anti-blocking condenser according to claim 1, wherein The diameter of the heat exchange tube (6) increases from the inlet of the heat exchange tube (6) to the outlet direction of the heat exchange tube (6).

6. The anti-blocking condenser according to claim 1, wherein, The wall thickness of the heat exchange tube (6) increases from the inlet of the heat exchange tube (6) to the outlet direction of the heat exchange tube (6).

7. The anti-blocking condenser according to any one of claims 1-6, characterized in that, A water inlet chamber (3) is arranged at the inlet end of the heat exchange tube (6), the water inlet chamber (3) is provided with a cold source inlet (31), a water outlet chamber (4) is arranged at the outlet end of the heat exchange tube (6), and the water outlet chamber (4) is provided with a cold source outlet (41).

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