Icebreaker ship through-hole structure with ice melting and heat exchange functions

Abstract

The application belongs to the technical field of ship sea inlet structure design scheme, and particularly relates to an icebreaker sea inlet structure with ice melting and heat exchange functions, comprising a water outlet pipe base, an outer sleeve pipe, a jet pipe, a heat exchange pipeline and a grid plate frame; the water outlet pipe base is connected to the rear side of the water outlet pipe of the icebreaker, and the outer sleeve pipe is connected to the rear side of the water outlet pipe base; the jet pipe is arranged in the outer sleeve pipe; an annular drainage port is formed between the front side pipe opening of the jet pipe and the front side pipe opening of the outer sleeve pipe, the outer wall of the jet pipe and the inner wall of the outer sleeve pipe form a heat exchange channel with a rotary body structure, and the front half of the jet pipe is uniformly provided with a plurality of jet holes c; the heat exchange pipeline comprises heat exchange pipes uniformly arranged in the heat exchange channel; and the grid plate frame is buckled to the rear end pipe opening of the outer sleeve pipe. The application is mainly used for optimizing and improving the sea inlet structure, especially the water outlet structure, of various icebreakers and other ships that need to operate in a polar low temperature environment, and is used for improving the situation that the sea inlet is prone to icing and blocking in a low temperature environment.

Description

Technical Field

[0001] This invention belongs to the technical field of ship access to the sea, and particularly relates to an icebreaker access to the sea structure that combines ice melting and heat exchange functions. Background Technology

[0002] Ships contain numerous piping systems, many of which involve direct water exchange with external water bodies. These pipes connect to the external environment via sea passages. For certain vessels, such as icebreakers, which operate in extremely low-temperature environments, ensuring the unobstructed flow of these pipe passages and preventing them from freezing is a necessary part of routine operation and maintenance. This primarily involves ice melting and dispersing. On the one hand, it requires timely removal of ice that has blocked or may block the sea passage; on the other hand, it requires preventing ice fragments and external floating ice formed after physical or other removal methods from re-entering the sea passage and affecting pipe flow. Furthermore, due to the unique characteristics of icebreakers, their navigation differs from other types of vessels that navigate continuously. Their navigation is discontinuous, with significant speed variations, and even features such as back-and-forth movement to break ice and rapid speed changes to clear ice fragments. Summary of the Invention

[0003] The purpose of this invention is to provide an icebreaker sea passage structure that combines ice melting and heat exchange functions, based on the actual usage requirements of icebreaker sea passages. This structure can better prevent ice formation in the water outlet channel of the sea passage and simultaneously utilize the waste heat of the ship's heat dissipation system.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] An icebreaker estuary structure that combines ice melting and heat exchange functions includes a water outlet pipe seat 1, an outer casing 2, a jet pipe 3, a heat exchange pipeline 5, and a grid plate frame 6.

[0006] The outlet pipe seat 1 is connected to the rear side of the icebreaker's outlet pipe, and the outer sleeve 2 is connected to the rear side of the outlet pipe seat 1.

[0007] The diameter of the front side of the outer sleeve 2 is smaller than that of the rear side, forming a flared structure;

[0008] The jet tube 3 is located inside the outer sleeve 2. The diameter of the front side of the jet tube 3 is larger than the diameter of the rear side, forming a funnel-shaped structure.

[0009] The front opening of the jet tube 3 and the front opening of the outer sleeve 2 form an annular inlet 1a. The outer wall of the jet tube 3 and the inner wall of the outer sleeve 2 form a heat exchange channel 1b with a rotating structure. Several jet holes 1c are evenly provided on the front half of the jet tube 3.

[0010] The heat exchange pipeline 5 includes heat exchange pipes 50 evenly arranged in the heat exchange channel 1b;

[0011] The grid plate frame 6 is fastened to the rear end of the outer sleeve 2.

[0012] In a further improved or preferred embodiment of the icebreaker estuary structure that combines ice melting and heat exchange functions, the heat exchange pipeline includes: a plurality of U-shaped heat exchange tubes 50 arranged in a ring array within the heat exchange channel 1b, and a ring-shaped high-temperature water inlet pipe 51 and a ring-shaped low-temperature water return pipe 52 respectively connected to the two arms of the heat exchange tubes 50; the ring-shaped high-temperature water inlet pipe 51 and the ring-shaped low-temperature water return pipe 52 are connected to the icebreaker refrigeration cycle loop.

[0013] In a further improved or preferred embodiment of the icebreaker estuary structure that combines ice melting and heat exchange functions, the outer casing 2 is a cylindrical, conical, or rectangular conical structure with a smaller front and a larger rear; the jet pipe 3 is a cylindrical, conical, or rectangular conical structure with a larger front and a smaller rear; the inner and outer walls of the two form a heat exchange channel 1b with a smaller front and a larger rear.

[0014] Further improvements or preferred implementations of the icebreaker estuary structure with both ice melting and heat exchange functions include a position adjustment mechanism located inside the outer casing 2, wherein the jet pipe 3 is mounted on the position adjustment mechanism in a sliding adjustment manner.

[0015] In a further improved or preferred embodiment of the icebreaker estuary structure that combines ice melting and heat exchange functions, the adjustment mechanism includes an adjustment rod 7 directly connected to the jet pipe 3, and a linear drive device for driving the adjustment rod to move back and forth.

[0016] In a further improved or preferred embodiment of the icebreaker passageway structure that combines ice melting and heat exchange functions, the jet pipe 3 is a cylindrical structure, and the outer and inner walls of the jet pipe 3 are respectively provided with spiral guide vanes 30. The spiral guide vanes are located behind the jet hole 1c, and the spiral directions of the inner and outer spiral guide vanes are consistent.

[0017] Its beneficial effects are as follows:

[0018] This application discloses an icebreaker access structure that combines ice melting and heat exchange functions. Through a diversion structure, it forms heat exchange channels and jet channels. During water discharge, the fluid diverted to the heat exchange channels continuously slows down as it flows through the increasing cross-sectional area, and continuously exchanges heat with the heat exchange pipes, forming a low-speed, low-density, warming fluid that flows backward to continuously melt ice. Meanwhile, the fluid diverted to the jet pipes continuously accelerates due to the decreasing cross-sectional area, forming a high-speed, high-density, low-temperature jet that is ejected backward, continuously flushing and removing melted ice fragments. By controlling the forward and backward positions of the jet pipes, the proportion of diverted fluids can be controlled to regulate the ice melting and fragmentation process as needed. This device has a simple and compact structure, is easy to use, and can be installed and configured according to the specific location and structure of the ship's access point, making it highly adaptable. It effectively enhances the anti-icing effect of the access points for icebreakers and other ships that need to navigate in polar regions, achieving rapid and efficient ice melting at the access points, while also providing auxiliary heat dissipation for the cooling system. Attached Figure Description

[0019] Figure 1 This is a front view of the icebreaker's passageway structure, which combines ice melting and heat exchange functions.

[0020] Figure 2 A cross-section of the icebreaker's estuary structure, which combines ice melting and heat exchange functions. Figure 1 ;

[0021] Figure 3 A cross-section of the icebreaker's estuary structure, which combines ice melting and heat exchange functions. Figure 2 ;

[0022] Figure 4 This is an internal schematic diagram of the icebreaker's access to the sea, which combines ice melting and heat exchange functions.

[0023] The reference numerals in the attached figures include:

[0024] 1. Water outlet pipe seat, 1a. Annular inlet, 1b. Heat exchange channel, 1c. Jet hole, 2. Outer jacket, 3. Jet pipe, 30. Spiral guide vane, 5. Heat exchange pipeline, 50. Annular high temperature water inlet pipe, 51. Annular low temperature water return pipe, 52. Grid plate frame, 6. Adjusting rod. Detailed Implementation

[0025] The present invention will be described in detail below with reference to specific embodiments.

[0026] This application discloses an icebreaker access port structure that combines ice melting and heat exchange functions. It is mainly used to optimize and improve the access port structure, especially the outlet structure, of various icebreakers and other vessels that need to operate in polar low-temperature environments, in order to improve the situation where ice forms easily and blocks the access port in low-temperature environments.

[0027] like Figure 1As shown, the main structure of the icebreaker estuary structure with both ice melting and heat exchange functions in this application includes an outlet pipe seat 1, an outer casing 2, a jet pipe 3, a heat exchange pipeline 5, and a grid plate frame 6.

[0028] The outlet pipe seat 1 is connected to the rear side of the icebreaker's outlet pipe, and the outer sleeve 2 is connected to the rear side of the outlet pipe seat 1.

[0029] The diameter of the front side of the outer sleeve 2 is smaller than that of the rear side, forming a flared structure;

[0030] The jet tube 3 is located inside the outer sleeve 2. The diameter of the front side of the jet tube 3 is larger than the diameter of the rear side, forming a funnel-shaped structure.

[0031] The front opening of the jet tube 3 and the front opening of the outer sleeve 2 form an annular inlet 1a. The outer wall of the jet tube 3 and the inner wall of the outer sleeve 2 form a heat exchange channel 1b with a rotating structure. Several jet holes 1c are evenly provided on the front half of the jet tube 3.

[0032] The heat exchange pipeline 5 includes heat exchange pipes 50 that are evenly arranged in the heat exchange channel 1b;

[0033] The grid plate frame 6 is fastened to the rear end of the outer sleeve 2.

[0034] In this application, the outlet pipe seat 1 is connected to the outlet pipe of the propagation water circulation pipeline and also serves as a supporting connection structure to ensure the stability of the outer casing structure after installation. When necessary, a support body, covering layer, or other structure should be used to support, fix, or insulate the exterior of the device. The outer casing 2 and the jet pipe 3 form a diversion and guiding structure to divert the water discharged from the ship, allowing it to enter the heat exchange channel 1b and the jet pipe 3 respectively. The water pressure and flow velocity are varied by changes in the cross-sectional area of ​​the flow channel during the flow process to meet the requirements of low-velocity heat exchange and high-velocity scouring. The low-velocity water flow can contact the heat exchange pipeline 5 for a longer period, absorbing heat more fully, while the high-velocity water flow, after compression, is sprayed to scour the ice fragments in the rear grid plate frame and surrounding area.

[0035] like Figure 2 , Figure 3 As shown, in a preferred embodiment, the heat exchange pipeline in this application includes: a plurality of U-shaped heat exchange tubes 50 arranged in a ring array within the heat exchange channel 1b, and a ring-shaped high-temperature water inlet pipe 51 and a ring-shaped low-temperature water return pipe 52 respectively connected to the two arms of the heat exchange tubes 50; wherein the ring-shaped high-temperature water inlet pipe 51 and the ring-shaped low-temperature water return pipe 52 are connected to the icebreaker refrigeration cycle loop, and heat exchange is performed between the high-temperature fluid entering the heat exchange tubes 50 and the low-speed low-temperature fluid entering the heat exchange channel to generate a heated fluid for ice melting and de-icing.

[0036] To ensure the required size of the heat exchange channel, as a conventional solution, the outer casing 2 is a cylindrical, conical, or rectangular conical structure with a smaller front and a larger rear; the jet tube 3 is a cylindrical, conical, or rectangular conical structure with a larger front and a smaller rear; the inner and outer walls of the two form a heat exchange channel 1b with a smaller front and a larger rear.

[0037] The jet pipe 3 has a cylindrical structure, with spiral guide vanes 30 on both its outer and inner walls. These vanes are located behind the jet orifice 1c, and their spiral directions are consistent. The spiral guide vanes facilitate the formation of a fixed-direction swirling flow through the heat exchange channel and the jet pipe, achieving continuous directional melting and scouring, further improving the removal of ice. Simultaneously, they remove ice fragments along a fixed direction, preventing complex turbulent backflow that could lead to ice fragments flowing back into the de-icing area during the winter solstice. It should be noted that the aforementioned shape and structure description defines a potentially different basic structural form. In actual use, for purposes such as fluid control and improved heat exchange, the basic structure can be locally optimized or modified to further enable different functions.

[0038] In particular, in order to facilitate flexible control of the de-icing water temperature based on the actual outlet water temperature and the medium temperature inside the heat exchange tube, it is necessary to be able to more flexibly control the flow rate ratio of the fluid entering the jet tube in the heat exchange channel. For this purpose, a position adjustment mechanism is also provided inside the outer sleeve 2 in this embodiment, wherein the jet tube 3 is installed on the position adjustment mechanism in a sliding adjustment manner.

[0039] The position adjustment mechanism changes the size of the annular inlet 1a by controlling the back-and-forth movement of the jet tube, thereby controlling the flow rate ratio of the fluid entering the two locations.

[0040] As an easy-to-implement solution, the adjustment mechanism may be an adjustment rod 7 directly connected to the jet tube 3, and a linear drive device for driving the adjustment rod to move back and forth.

[0041] In actual implementation, the linear drive device can be configured in different positions as needed, such as the outlet pipe seat, the inner or outer part of the outer sleeve, etc.

[0042] 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 the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A sea passage structure for an icebreaker that combines ice melting and heat exchange functions, characterized in that, It includes a water outlet pipe seat (1), an outer casing (2), a jet pipe (3), a heat exchange pipe (5), and a grid plate frame (6); The outlet pipe seat (1) is connected to the rear side of the icebreaker's outlet pipe, and the outer sleeve (2) is connected to the rear side of the outlet pipe seat (1); The jet tube (3) is located inside the outer sleeve (2); The front opening of the jet tube (3) and the front opening of the outer tube (2) form an annular inlet (1a). The outer wall of the jet tube (3) and the inner wall of the outer tube (2) form a heat exchange channel with a rotating structure (1b). Several jet holes (1c) are evenly provided on the front half of the jet tube (3). The heat exchange pipeline (5) includes heat exchange tubes (50) uniformly arranged in the heat exchange channel (1b); The grid plate frame (6) is fastened to the rear end of the outer sleeve (2); The outer casing (2) is a cylindrical shape with a smaller front and a larger rear; the jet tube (3) is a cylindrical shape with a larger front and a smaller rear; the inner wall of the outer casing (2) and the outer wall of the jet tube (3) form a heat exchange channel (1b) with a smaller front end and a larger rear end.

2. The icebreaker estuary structure with both ice-melting and heat exchange functions as described in claim 1, characterized in that, The heat exchange pipeline includes: a plurality of U-shaped heat exchange tubes (50) arranged in a ring array within the heat exchange channel (1b), and a ring high-temperature water inlet pipe (51) and a ring low-temperature water return pipe (52) respectively connected to the two arms of the heat exchange tubes (50); the ring high-temperature water inlet pipe (51) and the ring low-temperature water return pipe (52) are connected to the icebreaker refrigeration cycle loop.

3. The icebreaker estuary structure with both ice-melting and heat exchange functions as described in claim 1, characterized in that, It also includes a position adjustment mechanism located inside the outer tube (2), and the jet tube (3) is mounted on the position adjustment structure in a sliding adjustment manner.

4. The icebreaker estuary structure with both ice-melting and heat exchange functions as described in claim 3, characterized in that, The adjustment mechanism includes an adjustment rod (7) directly connected to the jet tube (3), and a linear drive device for driving the adjustment rod to move back and forth.

5. The icebreaker estuary structure with both ice-melting and heat exchange functions as described in claim 1, characterized in that, The jet tube (3) has a cylindrical structure. The outer and inner walls of the jet tube (3) are respectively provided with spiral guide vanes (30). The spiral guide vanes are located behind the jet hole (1c), and the spiral directions of the inner and outer spiral guide vanes are consistent.

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