River water condenser and ship

Abstract

The utility model discloses a river water condenser and ship, this river water condenser includes the casing, is equipped with circulating water import and circulating water export on the casing, and circulating water import and circulating water export all are linked to the shell inner chamber, and the casing both ends are connected with front end cover and tail end cover respectively, and the water inlet and water outlet are in parallelly arranged on the front end cover, and the cooling pipe is equipped in the casing, and the cooling pipe includes cooling inlet pipe and cooling outlet pipe, and the cooling inlet pipe is linked to the water inlet, and the cooling outlet pipe is linked to the water outlet, and the tail end cover is equipped with the self -cleaning mechanism, adopts the river water condenser of the utility model, and heat exchange effect is good, and the pipeline is few and is long in service life.

Description

Technical Field

[0001] This utility model belongs to the field of marine technology. Specifically, this utility model relates to a river water condenser and a ship. Background Technology

[0002] The existing river water condensers have the following technical problems:

[0003] 1. When using river water or lake water as a cold source for heat exchange, silt will inevitably enter the pipe. After long-term operation, scale will form on the pipe wall, leading to a decrease in the heat transfer coefficient. Conventional chemical cleaning requires shutdown and poses a risk of environmental pollution.

[0004] 2. The heat transfer efficiency of traditional smooth condenser tubes is limited by the contact area of ​​the tube wall, and the heat transfer efficiency is significantly reduced under conditions of small temperature difference.

[0005] Utility model patent CN 219474366U, published on August 4, 2023, discloses a river water and greywater heat exchange system, comprising a river water inlet pipe, a first valve, a second valve, a pre-filter, a pipe-type heat meter, a greywater outlet pipe, a wide-channel plate heat exchanger, a greywater inlet pipe, and a river water outlet pipe. The river water inlet pipe is connected to the pre-filter, and the first valve is installed between the river water inlet pipe and the pre-filter. The pre-filter is connected to the wide-channel plate heat exchanger through the second valve. The wide-channel plate heat exchanger has a greywater outlet pipe, a greywater inlet pipe, and a river water outlet pipe. The pipe-type heat meter is installed between the second valve and the wide-channel plate heat exchanger. However, this river water and greywater heat exchange system does not solve the aforementioned technical problem. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a river water condenser with good heat exchange performance, less pipe blockage, and long service life.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] The condenser includes a shell with a circulating water inlet and a circulating water outlet, both of which are connected to the inner cavity of the shell. A front end cover and a rear end cover are connected to both ends of the shell. An inlet and an outlet are arranged side by side on the front end cover. A cooling pipe is provided inside the shell, including a cooling water inlet pipe and a cooling water outlet pipe. The cooling water inlet pipe is connected to the inlet, and the cooling water outlet pipe is connected to the outlet. A self-cleaning mechanism is provided inside the rear end cover.

[0009] The self-cleaning mechanism includes an adjusting bolt. An outer end cover is detachably connected to the outside of the tail end cover, and the adjusting bolt is threaded onto the outer end cover. A push plate is provided inside the tail end cover. Rubber pads and mounting blocks are fixedly connected to both sides of the push plate, respectively. A limiting opening is provided on the mounting block. A limiting block is fixedly connected to the end of the adjusting bolt, and the limiting block is located within the limiting opening.

[0010] There are four adjusting bolts and four push plates. Each adjusting bolt is axially corresponding to each push plate. Each push plate includes a first push plate and a second push plate. The rubber pad on the first push plate is opposite to the cooling water inlet pipe, and the rubber pad on the second push plate is opposite to the cooling water outlet pipe.

[0011] The cooling pipes are evenly distributed and arranged in parallel, and grooves are evenly distributed on the cooling pipes.

[0012] The housing is also provided with a support plate, through which the cooling pipe passes; a first sealing flange is provided between the housing and the front end cover, and a second sealing flange is provided between the housing and the rear end cover, with the two ends of the cooling pipe respectively located on the first sealing flange and the second sealing flange; a partition is provided inside the front end cover, which separates the interior of the front end cover into a water inlet chamber and a water outlet chamber, the water inlet chamber connecting the water inlet and the cooling water inlet pipe, and the water outlet chamber connecting the water outlet and the cooling water outlet pipe.

[0013] The tail end cap is provided with a guide groove, and the end of the mounting block and the limiting block are both located in the guide groove.

[0014] The front cover has an arc-shaped protrusion structure.

[0015] The top of the shell is fixedly connected to a lifting lug, and the bottom of the shell is fixedly connected to a support.

[0016] Flanges are provided at both ends of the shell, at the inlet, at the outlet, and at the circulating water inlet and outlet. The front end cover is connected to the shell via a flange, the rear end cover is connected to the shell via a flange, and the rear end cover is connected to the outer end cover via a flange.

[0017] Ships, including the aforementioned river water condensers.

[0018] This utility model has the following technical effects:

[0019] 1. Improved heat exchange efficiency: By designing a grooved structure on the outer wall of the heat dissipation pipe, the heat dissipation area is significantly increased, thereby effectively improving heat exchange efficiency. The grooved structure not only increases the heat exchange area but also helps optimize fluid dynamics characteristics, further enhancing heat exchange performance.

[0020] 2. Self-cleaning function: Through the cooperation of push plate, rubber pad and push-pull bolt, the internal tube wall of the tail end cover is automatically cleaned. The self-cleaning mechanism does not require the machine to be stopped during use, avoiding the environmental pollution risk caused by conventional chemical cleaning and reducing maintenance costs.

[0021] 3. Enhanced operational stability: By changing the water flow area of ​​the inlet and outlet, the water flow rate is increased, which helps to reduce pipe blockage, ensures long-term stable operation of the condenser, effectively slows down the scaling rate on the pipe wall, and further improves the service life and operating efficiency of the condenser. Attached Figure Description

[0022] This manual includes the following figures, which illustrate the following:

[0023] Figure 1 This is a schematic diagram of the structure of the river water condenser of this utility model;

[0024] Figure 2 This is a schematic diagram of the front cover structure of this utility model;

[0025] Figure 3-1 and Figure 3-2 This is a schematic diagram of the structure of the tail end cap and the outer end cap of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the connection end between the shell and the front cover of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the connection end between the shell and the tail cap of this utility model;

[0028] Figure 6-1 and Figure 6-2 This is a schematic diagram of the structure of the tail cap of this utility model;

[0029] Figure 7 This is a schematic diagram of the self-cleaning mechanism of this utility model;

[0030] Figure 8 This is a schematic diagram of the push plate and mounting block structure of this utility model;

[0031] Figure 9 This is a schematic diagram of the layout structure of the cooling pipe of this utility model;

[0032] Figure 10 This is a schematic diagram of the groove structure of the cooling pipe of this utility model.

[0033] The diagram is labeled as follows: 1. Shell; 11. Circulating water inlet; 12. Circulating water outlet; 13. Support plate; 14. First sealing flange plate; 15. Second sealing flange plate; 16. Lifting lug; 17. Support; 2. Front end cover; 21. Water inlet; 22. Water outlet; 23. Partition plate; 24. Water inlet chamber; 25. Water outlet chamber; 3. Tail end cover; 31. Outer end cover; 32. Adjusting bolt; 321. Limiting block; 33. Screw sleeve; 34. Push plate; 341. First push plate; 342. Second push plate; 35. Rubber pad; 36. Mounting block; 361. Limiting opening; 362. U-shaped opening; 37. Guide groove; 4. Cooling pipe; 41. Cooling water inlet pipe; 42. Cooling water outlet pipe; 43. Groove; 5. Flange; 51. Gasket. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0035] like Figure 1 As shown, the river water condenser includes a shell 1 with a circulating water inlet 11 and a circulating water outlet 12, both of which are connected to the inner cavity of the shell 1. A front end cover 2 and a rear end cover 3 are connected to both ends of the shell 1. An inlet 21 and an outlet 22 are arranged side-by-side on the front end cover 2. A cooling pipe 4 is installed inside the shell 1, including a cooling water inlet pipe 41 and a cooling water outlet pipe 42. The cooling water inlet pipe 41 is connected to the inlet 21, and the cooling water outlet pipe 42 is connected to the outlet 22. A self-cleaning mechanism is installed inside the rear end cover 3. This river water condenser is located in the ship's engine room and achieves heat exchange through conduction between river water inflow / outflow channels and circulating water or ethylene glycol inflow / outflow channels. Inlet 21 and outlet 22 are the inflow and outflow channels for river water, while circulating water inlet 11 and circulating water outlet 12 are the inflow and outflow channels for circulating water or ethylene glycol within the ship. Cooling pipe 4 serves to transfer heat, facilitating the removal of heat by the flowing river water, thereby cooling the circulating water or ethylene glycol. Inlet 21 connects to the inlet channel, and outlet 22 connects to the outlet channel. Both inlet 21 and outlet 22 are located on the front cover 2, extending the flow path of the river water, improving heat exchange efficiency, and facilitating the pipe layout of the two outlets.

[0036] like Figures 5 to 7As shown, the self-cleaning mechanism includes an adjusting bolt 32. An outer end cover 31 is detachably connected to the outside of the tail end cover 3, and the adjusting bolt 32 is threaded onto the outer end cover 31. A push plate 34 is provided inside the tail end cover 3. Rubber pads 35 and mounting blocks 36 are fixedly connected to both sides of the push plate 34, respectively. The mounting block 36 has a limiting opening 361. A limiting block 321 is fixedly connected to the end of the adjusting bolt 32, and the limiting block 321 is located within the limiting opening 361. A threaded sleeve 33 is provided on the tail end cover 3 for installing the adjusting bolt 32. Tightening the push-pull bolt rotates it, which can abut or pull the mounting block 36, thereby driving the push plate 34 to move, adjusting the volume of the inner cavity of the tail end cover 3, thus achieving the purpose of adjusting the water flow rate. The operating end of the push-pull bolt is located outside the outer end cover 31, making it convenient for operators to adjust using a wrench or socket. The operation is convenient, and adjustment can be performed without stopping the machine, avoiding the high maintenance costs of disassembly and chemical cleaning. The mounting block 36 is also provided with a U-shaped opening 362 at its end, which is radially oriented and used for the lateral installation of the limiting block 321, thereby improving the ease of installation. The size of the U-shaped opening 362 is smaller than that of the limiting block 321, so the limiting block 321 will not detach from the mounting block 36. At the same time, under the restriction of the guide groove 37, the mounting block 36 can only move axially in a straight line, and the U-shaped opening 362 will not cause the bolt to come off.

[0037] like Figures 5 to 7 As shown, there are four adjusting bolts 32 and four push plates 34. Each adjusting bolt 32 is axially corresponding to each push plate 34. The push plate 34 includes a first push plate 341 and a second push plate 342. The rubber pad 35 on the first push plate 341 is opposite to the cooling water inlet pipe 41, and the rubber pad 35 on the second push plate 342 is opposite to the cooling water outlet pipe 42. Each adjusting bolt 32 can individually control the movement of its corresponding push plate 34. Each push plate 34 corresponds to a set of cooling water inlet pipes 41 or cooling water outlet pipes 42. There are two first push plates 341 and two second push plates 342, which correspond to the cooling water inlet pipe 41 and cooling water outlet pipe 42 of the cooling pipe 4, respectively. With the above structure, not only can the number of adjusting bolts 32 used be controlled, but also the feed amount of the adjusting bolts 32 can be controlled to adjust the water flow rate, thereby achieving a wider adjustment range and improving the applicability. For example, two adjusting bolts 32 can be used to seal a set of cooling water inlet pipes 41 and cooling water outlet pipes 42 respectively, reducing the water flow area and increasing the water flow velocity. The feed rate can then be adjusted using two other adjusting bolts 32, changing the internal volume of the tail end cover 3 and further increasing the water flow velocity. This prevents the accumulation of sediment carried by river water inside the tail end cover 3 and the cooling pipes 4, thus avoiding scale buildup on the pipe walls and helping to reduce pipe blockage, ensuring long-term stable operation of the condenser. When the rubber pad 35 on the push plate 34 contacts and presses against the opening of the cooling pipe 4, it stops the flow of river water, achieving a sealed state. Using the rubber pad 35 avoids rigid contact with the pipe opening, which helps prevent damage to the pipe opening and improves the sealing effect.

[0038] like Figure 3-2 As shown, the rubber pad 35 and the push plate 34 are matched in size. The outer edge of the push plate 34 is an arc-shaped structure. The four push plates 34 are divided into a circular plate. The cross-section of the circular plate is matched with the inner diameter of the tail end cover 3, which can play a role in preventing leakage. When the push plate 34 moves to adjust the water flow rate, the push plate 34 simultaneously contacts the inner wall of the tail end cover 3 for cleaning, thus playing a cleaning role. Even if the river water flows into the outer end cover 31 and causes blockage due to improper adjustment, only the outer end cover 31 needs to be removed for maintenance and cleaning, without the need to shut down the entire machine.

[0039] like Figure 9 and Figure 10 As shown, the cooling pipes 4 are evenly distributed and arranged in parallel, and grooves 43 are evenly distributed on the cooling pipes 4. The outer wall of the heat dissipation pipe is designed with a groove structure 43, which increases the heat dissipation area and improves the heat exchange efficiency. At the same time, the groove structure 43 changes the inner wall structure of the cooling pipe 4, optimizes the fluid dynamic characteristics, and further improves the heat transfer performance.

[0040] like Figure 4 , Figure 5 and Figure 9 As shown, a support plate 13 is also provided inside the shell 1, through which the cooling pipe 4 passes. A first sealing flange plate 14 is provided between the shell 1 and the front end cover 2, and a second sealing flange plate 15 is provided between the shell 1 and the rear end cover 3. The two ends of the cooling pipe 4 are respectively located on the first sealing flange plate 14 and the second sealing flange plate 15. A partition plate 23 is provided inside the front end cover 2, which separates the interior of the front end cover 2 into an inlet chamber 24 and an outlet chamber 25. The inlet chamber 24 connects the inlet 21 and the cooling water inlet pipe 41, and the outlet chamber 25 connects the outlet 22 and the cooling water outlet pipe 42. The uniformly distributed cooling pipes 4 increase the number of installations, thereby increasing the contact area with circulating water or ethylene glycol and improving heat exchange efficiency. The support plate 13 provides support for the cooling pipes 4. The support plate 13 has a semi-circular structure, and multiple support plates 13 can be installed inside the shell 1. It is necessary to ensure that adjacent support plates 13 are staggered to extend the flow path of circulating water or ethylene glycol, thereby further improving heat exchange efficiency. The open ends of the cooling pipe 4 are located outside the first sealing flange plate 14 and the second sealing flange plate 15, respectively, to seal the inner cavity of the shell 1 and prevent river water from mixing into the circulating water and causing adverse effects. The partition plate 23 separates the internal space of the front cover 2. The partition plate 23 is horizontally positioned, as shown in the reference... Figure 4 and Figure 5 The upper part of the diagram is the cooling water outlet pipe 42, and the lower part is the cooling water inlet pipe 41. This makes the inlet and outlet channels of the river water independent of each other, avoiding the problem of reduced heat exchange efficiency caused by the mixing of river water before and after heat exchange.

[0041] like Figure 6-1 and Figure 6-2As shown, the tail end cover 3 is provided with a guide groove 37, and the end of the mounting block 36 and the limiting block 321 are both located in the guide groove 37. The push plate 34 and the mounting block 36 are an integral structure. The mounting block 36 can move linearly in the guide groove 37, restricting the axial movement of the push plate 34.

[0042] like Figure 2 As shown, the front cover 2 has an arc-shaped protrusion structure. This structure facilitates the entry or exit of river water along the cooling pipe 4 after it flows into the river.

[0043] like Figure 1 As shown, a lifting lug 16 is fixedly connected to the top of the shell 1, and a support 17 is fixedly connected to the bottom of the shell 1. There are two lifting lugs 16 and two supports 17, which serve to stabilize the shell during lifting and the shell during placement, respectively.

[0044] like Figures 1 to 9 As shown, flange connections are provided at both ends of the shell 1, at the inlet 21, at the outlet 22, and at the circulating water inlet 11 and circulating water outlet 12. The front cover 2 is connected to the shell 1 via a flange, the rear cover 3 is connected to the shell 1 via a flange, and the rear cover 3 is connected to the outer cover 31 via a flange. The flanges 5 facilitate pipe connection and partial disassembly for cleaning, maintenance, or component replacement. Gaskets 51 are provided on both sides of the flanges of the front cover 2 and the rear cover 3 to improve sealing and installation reliability.

[0045] Ships, including the aforementioned river water condensers.

[0046] This river water condenser has the following technical advantages:

[0047] 1. Improved heat exchange efficiency: By designing a groove 43 structure on the outer wall of the heat dissipation tube, the heat dissipation area is significantly increased, thereby effectively improving heat exchange efficiency. The groove 43 structure not only increases the heat exchange area but also helps optimize fluid dynamics characteristics, further improving heat exchange performance.

[0048] 2. Self-cleaning function: Through the cooperation of push plate 34, rubber pad 35 and push-pull bolt, the internal tube wall of tail cover 3 is automatically cleaned. The self-cleaning mechanism does not require machine shutdown during use, avoiding the environmental pollution risk caused by conventional chemical cleaning and reducing maintenance costs.

[0049] 3. Enhanced operational stability: By changing the water flow area of ​​the inlet and outlet, the water flow rate is increased, which helps to reduce pipe blockage, ensures long-term stable operation of the condenser, effectively slows down the scaling rate on the pipe wall, and further improves the service life and operating efficiency of the condenser.

[0050] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A river water condenser, characterized in that: The device includes a housing (1), on which a circulating water inlet (11) and a circulating water outlet (12) are provided, both of which are connected to the inner cavity of the housing (1); a front end cover (2) and a rear end cover (3) are respectively connected to both ends of the housing (1), and an inlet (21) and an outlet (22) are arranged side by side on the front end cover (2); a cooling pipe (4) is provided inside the housing (1), the cooling pipe (4) including a cooling water inlet pipe (41) and a cooling water outlet pipe (42), the cooling water inlet pipe (41) being connected to the inlet (21), and the cooling water outlet pipe (42) being connected to the outlet (22); and a self-cleaning device is provided inside the rear end cover (3). The self-cleaning mechanism includes an adjusting bolt (32), an outer end cover (31) is detachably connected to the outside of the tail end cover (3), and the adjusting bolt (32) is threaded onto the outer end cover (31); a push plate (34) is provided inside the tail end cover (3), and a rubber pad (35) and a mounting block (36) are fixedly connected to both sides of the push plate (34), and a limiting opening (361) is provided on the mounting block (36), and a limiting block (321) is fixedly connected to the end of the adjusting bolt (32), and the limiting block (321) is located inside the limiting opening (361); the cooling pipes (4) are evenly distributed and arranged in parallel, and grooves (43) are evenly distributed on the cooling pipes (4).

2. The river water condenser according to claim 1, characterized in that: There are four adjusting bolts (32) and four push plates (34). Each adjusting bolt (32) is axially corresponding to each push plate (34). The push plate (34) includes a first push plate (341) and a second push plate (342). The rubber pad (35) on the first push plate (341) is opposite to the cooling water inlet pipe (41), and the rubber pad (35) on the second push plate (342) is opposite to the cooling water outlet pipe (42).

3. The river water condenser according to claim 2, characterized in that: The housing (1) is also provided with a support plate (13), and the cooling pipe (4) passes through the support plate (13); a first sealing flange plate (14) is provided between the housing (1) and the front end cover (2), and a second sealing flange plate (15) is provided between the housing (1) and the tail end cover (3). The two ends of the cooling pipe (4) are respectively provided on the first sealing flange plate (14) and the second sealing flange plate (15); a partition plate (23) is provided inside the front end cover (2), and the partition plate (23) separates the interior of the front end cover (2) into a water inlet chamber (24) and a water outlet chamber (25). The water inlet chamber (24) is connected to the water inlet (21) and the cooling water inlet pipe (41), and the water outlet chamber (25) is connected to the water outlet (22) and the cooling water outlet pipe (42).

4. The river water condenser according to claim 3, characterized in that: The tail cap (3) is provided with a guide groove (37), and the end of the mounting block (36) and the limiting block (321) are both located in the guide groove (37).

5. The river water condenser according to claim 1, characterized in that: The front cover (2) has an arc-shaped protrusion structure.

6. The river water condenser according to claim 1, characterized in that: The top of the housing (1) is fixedly connected with a lifting lug (16), and the bottom of the housing (1) is fixedly connected with a support (17).

7. The river water condenser according to claim 4, characterized in that: Flanges (5) are provided at both ends of the shell (1), at the inlet (21), at the outlet (22), at the circulating water inlet (11), and at the circulating water outlet (12); the front cover (2) is connected to the shell (1) by a flange, the tail cover (3) is connected to the shell (1) by a flange, and the tail cover (3) is connected to the outer cover (31) by a flange.

8. A ship, characterized in that: Includes the river water condenser as described in any one of claims 1-7.

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