Connecting pipe and V-shaped engine cooling system
By designing a connecting pipe with a deflector in the V-type marine engine cooling system, the cooling liquid from the high-temperature water pump is mixed, the problem of temperature imbalance on the AB side of the engine is solved, and a more balanced temperature distribution is achieved.
Patent Information
- Application Number
- CN202421073375.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In the V-type marine engine cooling system, the fluid inlet temperature of the high-temperature water pump leads to the uneven temperature on the AB side of the engine.
A connecting pipe is designed, including a liquid inlet pipe section, a connector and a liquid outlet pipe section. The liquid inlet pipe section is equipped with a deflector to mix coolant from different ends to ensure that the liquid temperature entering the high-temperature water pump is more balanced.
Through liquid mixing, the temperature equalization of the AB side of the V-type engine is significantly improved, and the heat dissipation imbalance and temperature imbalance caused by unreasonable pipeline arrangement are avoided.
Smart Images
Figure CN222363055U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, in particular to a connecting pipe and a V-shaped engine cooling system. Background Art
[0002] The V-type marine engine includes a water jacket, a thermostat, a heat exchanger 100' and a high-temperature water pump 200', etc., wherein there are two high-temperature water pumps 200'. Figure 1 The liquid flow diagram in the heat exchanger 100' shown in the figure shows that when the cooling system of the V-type marine engine is in a cooling state where large and small cycles coexist, the coolant passing through the A-side water jacket and the B-side water jacket of the V-type marine engine merges in the a region of the heat exchanger 100' and is divided into two routes, L1 and L2. Among them, route L2 (including three L2 routes in the figure) passes downward through the thermostat and is further divided into route L21 entering the b region to the left, route L22 entering the c region to the right, and route L23 entering the large cycle. Both routes L21 and L1 enter the b region of the heat exchanger 100' and merge with the coolant route L23 exiting the large cycle in the b region. The coolant route L23 entering the b region from the large cycle has undergone heat exchange with the heat exchanger 100' and has become a low-temperature coolant. In other words, the b region is a mixture of the low-temperature coolant and the high-temperature coolants of routes L21 and L1. Route L22 enters the c region of the heat exchanger 100'. Area b and area c are connected to a high temperature water pump 200' respectively. The coolant before entering the two high temperature water pumps 200' cannot be mixed, and the coolant temperatures entering the two high temperature water pumps 200' are different, which will cause the temperature imbalance on the AB side of the engine. Utility Model Content
[0003] The utility model provides a connecting pipe and a V-type engine cooling system, which can improve the problem of temperature imbalance on the AB side of the V-type engine.
[0004] In order to achieve the above object, the utility model provides the following technical solutions:
[0005] A connecting pipe comprises a liquid inlet pipe section, a connecting body and two liquid outlet pipe sections, wherein the connecting body comprises a first end and a second end, both of which are open and connected; the liquid inlet pipe section comprises a first liquid inlet port and a second liquid inlet port which are arranged at intervals, and also comprises a connecting port located between the first liquid inlet port and the second liquid inlet port and a guide plate arranged in the liquid inlet pipe section, wherein the connecting port is connected to the first end of the connecting body; the direction in which the first end of the connecting body points to the second end is taken as the first direction, the guide plate and the connecting port are arranged opposite to each other in the first direction, and the guide plate extends toward the connecting port; the two liquid outlet pipe sections are both connected to and connected with the second end of the connecting body.
[0006] In this scheme, the first liquid inlet and the second liquid inlet are both connected to the first end of the connector through the connecting port, so that the liquid entering the connecting pipe from the first liquid inlet and the liquid entering the connecting pipe from the second liquid inlet can be mixed in the connector, and the mixed liquid is then discharged from the two liquid outlet pipe sections, and the temperature of the liquid discharged from the two liquid outlet pipe sections is closer and more balanced. When the V-type engine cooling system adopts the connecting pipe provided by this embodiment as the liquid inlet pipe of the two high-temperature water pumps, the temperature of the liquid entering the two high-temperature water pumps is more balanced, so that the temperature of the AB side of the V-type engine can be more balanced. In addition, the connecting pipe is an independent pipeline design and has multiple interfaces, which can avoid the complex layout and calculation of the engine cooling cycle; the setting of the guide plate in the liquid inlet pipe section can make the liquid entering the connecting pipe from the first liquid inlet and the liquid entering the connecting pipe from the second liquid inlet more fully mixed, which is conducive to further improving the balance of the temperature of the liquid discharged from the two liquid outlet pipe sections and further improving the balance of the temperature of the AB side of the V-type engine. In other words, the connecting pipe can balance the water inlet temperature of the high-temperature water pump on the AB side, and improve the heat dissipation imbalance and temperature imbalance problems of the V-type engine caused by unreasonable pipeline layout.
[0007] Optionally, a first liquid inlet is formed at one end of the liquid inlet pipe section, and a second liquid inlet is formed at the other end of the liquid inlet pipe section.
[0008] Optionally, the liquid inlet pipe section is a U-shaped pipe section.
[0009] Optionally, the guide plate is connected to the inner wall of the liquid inlet pipe section opposite to the connecting port.
[0010] Optionally, a cross section of the guide plate perpendicular to the first direction is S-shaped.
[0011] Optionally, the guide plate extends along the first direction.
[0012] Optionally, a dimension of the guide plate in the first direction is 1 / 2-1 / 2-2 / 3 of a dimension of the liquid inlet pipe section in the first direction.
[0013] Optionally, the guide plate is centrally arranged between the first liquid inlet and the second liquid inlet.
[0014] Optionally, taking the arrangement direction of the first liquid inlet and the second liquid inlet as the second direction, in the second direction, the size of the guide plate is 1 / 2 to 1 / 2 to 2 / 3 of the size of the portion of the liquid inlet pipe section between the first liquid inlet and the second liquid inlet.
[0015] The utility model also provides a cooling system for a V-type engine, the cooling system for the V-type engine comprises a heat exchanger, an A-side delivery pump, a B-side delivery pump and any one of the connecting pipes provided in the above technical solution, wherein the heat exchanger has a first liquid outlet for connecting to the A-side delivery pump and a second liquid outlet for connecting to the B-side delivery pump, the first liquid inlet is connected to the first liquid outlet, and the second liquid inlet is connected to the second liquid outlet; one of the two liquid outlet pipe sections is connected to the liquid inlet end of the A-side delivery pump, and the other of the two liquid outlet pipe sections is connected to the liquid inlet end of the B-side delivery pump. The cooling system for the V-type engine comprises the above connecting pipe and can thus at least achieve the technical effect that the above connecting pipe can achieve. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a liquid flow diagram in a heat exchanger of a V-type marine engine;
[0017] Figure 2 A schematic diagram of the structure of a connecting pipe provided in an embodiment of the utility model;
[0018] Figure 3 for Figure 2 A cross-sectional view of the connecting pipe shown;
[0019] Figure 4 for Figure 2 A schematic diagram of the structure of the connecting pipe after being cut open at another position;
[0020] Figure 5 A schematic structural diagram of another connecting pipe provided in an embodiment of the utility model;
[0021] Figure 6 A schematic structural diagram of a cooling system for a V-type engine provided in an embodiment of the utility model.
[0022] Icons: 1-liquid inlet pipe section; 11-first liquid inlet; 12-second liquid inlet; 13-connecting port; 14-guide plate; 2-connecting body; 21-emergency liquid inlet; 22-cover body; 3-liquid outlet pipe section; 100-heat exchanger; 200-connecting pipe. DETAILED DESCRIPTION
[0023] 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.
[0024] like Figure 2 and Figure 3As shown, a connecting pipe 200 provided in this embodiment includes a liquid inlet pipe section 1, a connecting body 2 and two liquid outlet pipe sections 3, wherein the connecting body 2 includes a first end and a second end, the first end and the second end are both open, and the first end and the second end are connected. The two liquid outlet pipe sections 3 are both connected and connected to the second end of the connecting body 2. The liquid inlet pipe section 1 includes a first liquid inlet port 11 and a second liquid inlet port 12 arranged at intervals, and also includes a connecting port 13 located between the first liquid inlet port 11 and the second liquid inlet port 12 and a guide plate 14 arranged in the liquid inlet pipe section 1, and the connecting port 13 is connected to the first end of the connecting body 2. With the direction from the first end of the connecting body 2 to the second end as the first direction, the guide plate 14 and the connecting port 13 are arranged opposite to each other in the first direction, and the guide plate 14 extends toward the connecting port 13. In this solution, the first liquid inlet 11 and the second liquid inlet 12 are connected to the first end of the connector 2 through the connecting port 13, so that the liquid entering the connecting pipe 200 from the first liquid inlet 11 and the liquid entering the connecting pipe 200 from the second liquid inlet 12 can be mixed in the connector 2, and the mixed liquid is then discharged from the two liquid outlet pipe sections 3, and the temperature of the liquid discharged from the two liquid outlet pipe sections 3 is closer and more balanced. When the V-type engine cooling system uses the connecting pipe 200 provided in this embodiment as the liquid inlet pipe of two high-temperature water pumps, the temperature of the liquid entering the two high-temperature water pumps is more balanced, so that the temperature of the AB side of the V-type engine can be more balanced. In addition, the connecting pipe 200 is designed as an independent pipeline with multiple interfaces, which can avoid the complicated layout and calculation of the engine cooling cycle; the setting of the guide plate 14 in the liquid inlet pipe section 1 can make the liquid entering the connecting pipe 200 from the first liquid inlet 11 and the liquid entering the connecting pipe 200 from the second liquid inlet 12 more fully mixed, which is conducive to further improving the temperature balance of the liquid discharged from the two liquid outlet pipe sections 3 and further improving the temperature balance of the AB side of the V-type engine. In other words, the connecting pipe 200 can balance the water inlet temperature of the high-temperature water pump on the AB side, and improve the heat dissipation imbalance and temperature imbalance problems caused by unreasonable pipeline layout in the V-type engine.
[0025] It should be understood that the A side of the V-type engine, that is, when the observer faces the flywheel of the V-type engine, the side of the row of cylinders located on the observer's left hand side, and the B side of the V-type engine, that is, when the observer faces the flywheel, the side of the row of cylinders located on the observer's right hand side.
[0026] In a specific implementation, in a possible implementation, the first liquid inlet 11 is formed at one end of the liquid inlet pipe section 1, and the second liquid inlet 12 is formed at the other end of the liquid inlet pipe section 1. In this way, on the basis of a simpler structure of the liquid inlet pipe section 1, it is easier to connect the first liquid inlet 11 and the second liquid inlet 12 with the structure to be connected (for example, the heat exchanger 100). Exemplarily, the outer peripheries of the first liquid inlet 11 and the second liquid inlet 12 are both provided with flanges, and a plurality of through holes are provided on the flanges to facilitate the connection between the first liquid inlet 11 and the second liquid inlet 12 and the heat exchanger.
[0027] Of course, in other implementations, the first liquid inlet 11 may be spaced apart from the end of the liquid inlet pipe section 1 , and the second liquid inlet 12 may also be spaced apart from the end of the liquid inlet pipe section 1 .
[0028] In a specific implementation, Figure 2 and Figure 4 As shown, the liquid inlet pipe section 1 is a U-shaped pipe section, which can block the liquid to a certain extent at the bend, thereby slowing down the flow rate of the liquid, which is conducive to more complete mixing of the liquid entering the connecting tube 200 from the first liquid inlet 11 and the liquid entering the connecting tube 200 from the second liquid inlet 12 in the connector 2.
[0029] Of course, in other implementations, the liquid inlet pipe section 1 may also be in other shapes, such as a straight line, an L shape, or other bending structures.
[0030] Next, please refer to Figure 3 When the guide plate 14 is specifically provided, in a possible implementation, the guide plate 14 is connected to the inner wall of the liquid inlet pipe section 1 opposite to the connecting port 13. In this case, the liquid entering the connecting pipe 200 from the first liquid inlet 11 and the liquid entering the connecting pipe 200 from the second liquid inlet 12 are mixed better in the connecting body 2.
[0031] Exemplarily, the shape of the cross section of the liquid inlet pipe segment 1 perpendicular to its own extension path is a rectangle. The wall of the liquid inlet pipe segment 1 opposite to the connecting port is the top wall of the liquid inlet pipe segment 1, and the two walls connecting the liquid inlet pipe segment 1 to the top wall are the side walls. The side of the guide plate 14 opposite to the connecting port is connected to the top wall of the liquid inlet pipe segment 1, and the two side surfaces of the guide plate 14 are respectively connected to the two side walls of the liquid inlet pipe segment 1. It should be understood that the rectangle here is not a rectangle in the narrow sense, but may also be a rectangle with chamfers at each vertex. Of course, in other implementations, the cross section of the liquid inlet pipe segment 1 perpendicular to its own extension path may also be other shapes, such as a circle.
[0032] Please refer to Figure 3 and Figure 4In a possible implementation, the cross section of the guide plate 14 perpendicular to the first direction is S-shaped. In this case, the liquid entering the connecting tube 200 from the first liquid inlet 11 and the liquid entering the connecting tube 200 from the second liquid inlet 12 are mixed better in the connecting body 2.
[0033] Of course, in other implementations, the guide plate 14 may also be in other shapes, such as a straight line, an L-shape, or other bending structures.
[0034] It should be understood that the guide plate 14 may extend toward the connection port 13 in such a way that the extension direction of the guide plate 14 and the first direction have a preset angle, or the guide plate 14 may extend along the first direction. When the guide plate 14 extends along the first direction, the liquid entering the connection pipe 200 from the first liquid inlet 11 and the liquid entering the connection pipe 200 from the second liquid inlet 12 have a better mixing effect in the connection body 2.
[0035] In a possible implementation, the size of the guide plate 14 in the first direction is 1 / 2-2 / 3 of the size of the liquid inlet pipe section 1 in the first direction, so as to achieve a better liquid mixing effect while having a smaller impact on the liquid flow rate. Exemplarily, the size of the guide plate 14 in the first direction can be 1 / 2, 3 / 5 or 2 / 3 of the size of the liquid inlet pipe section 1 in the first direction.
[0036] In one possible implementation, the guide plate 14 is centrally arranged between the first liquid inlet 11 and the second liquid inlet 12 so that the liquid entering the connecting tube 200 from the first liquid inlet 11 and the liquid entering the connecting tube 200 from the second liquid inlet 12 can be better mixed in the connector 2.
[0037] Taking the arrangement direction of the first liquid inlet 11 and the second liquid inlet 12 as the second direction, in a possible implementation, in the second direction, the size d1 of the guide plate 14 is 1 / 2-2 / 3 of the size d2 of the portion of the liquid inlet pipe section 1 located between the first liquid inlet 11 and the second liquid inlet 12, so as to achieve a better liquid mixing effect while having a smaller impact on the liquid flow rate. Exemplarily, the size of the guide plate 14 is 1 / 2, 3 / 5 or 2 / 3 of the size of the portion of the liquid inlet pipe section 1 located between the first liquid inlet 11 and the second liquid inlet 12.
[0038] It is not difficult to understand that both of the two liquid outlet pipe sections 3 have a liquid outlet. Exemplarily, the end of the liquid outlet pipe section 3 opposite to the connector 2 is provided with the above-mentioned liquid outlet.
[0039] In a specific implementation, the connecting pipe may be an integrally formed structure to simplify the assembly process of the engine.
[0040] like Figure 5As shown, in a possible implementation, the connector 2 has an emergency liquid inlet 21, and the cover 22 covers the emergency liquid inlet 21 and is detachably fixedly connected to the connector 2. It is not difficult to understand that the cover 22 is sealed to the connector 2. In this way, when there is no water in the water tank, liquid can be added through the emergency liquid inlet 21.
[0041] Figure 6 A schematic diagram of a cooling system for a V-type engine provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the cooling system of the V-type engine includes a heat exchanger 100, an A-side delivery pump (not shown in the figure), a B-side delivery pump (not shown in the figure) and the above-mentioned connecting pipe 200, wherein the heat exchanger 100 has a first liquid outlet for connecting to the A-side delivery pump and a second liquid outlet for connecting to the B-side delivery pump, a first liquid inlet 11 of the connecting pipe is connected to the first liquid outlet of the heat exchanger 100, and a second liquid inlet 12 of the connecting pipe is connected to the second liquid outlet of the heat exchanger 100. One of the two liquid outlet pipe sections 3 is connected to the liquid inlet end of the A-side delivery pump, and the other of the two liquid outlet pipe sections 3 is connected to the liquid inlet end of the B-side delivery pump.
[0042] When the cooling system of the V-type engine adopts the above-mentioned connecting pipe 200 as the liquid inlet pipe of the two high-temperature water pumps, the temperature of the liquid entering the two high-temperature water pumps is more balanced, so that the temperature on the AB side of the V-type engine can be more balanced. In addition, the connecting pipe 200 is an independent pipeline design and has multiple interfaces, which can avoid the complicated layout and calculation of the engine cooling cycle; the setting of the guide plate 14 in the liquid inlet pipe section 1 can make the liquid entering the connecting pipe 200 from the first liquid inlet 11 and the liquid entering the connecting pipe 200 from the second liquid inlet 12 more fully mixed, which is conducive to further improving the balance of the temperature of the liquid discharged from the two liquid outlet pipe sections 3 and further improving the balance of the temperature on the AB side of the V-type engine. In other words, the connecting pipe 200 can balance the water inlet temperature of the high-temperature water pumps on the AB side, and improve the heat dissipation imbalance and temperature imbalance problems caused by unreasonable pipeline layout of the V-type engine.
[0043] In a specific implementation, the cooling system of the V-type engine also includes a water jacket, a thermostat, an intercooler, at least one low-temperature water pump and at least one seawater pump. The A-side delivery pump and the B-side delivery pump act as high-temperature water pumps to pressurize the coolant so that the coolant enters the water jacket; the low-temperature water pump pressurizes the coolant so that the coolant enters the intercooler; the seawater pump pressurizes the seawater so that the seawater enters the heat exchanger 100 to cool the high-temperature fresh water and the low-temperature fresh water.
[0044] Illustratively, the cooling system of the V-type engine mentioned in this embodiment may be a cooling system of a V-type marine engine, or may be a cooling system of other V-type engines.
[0045] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A connecting pipe, characterized in that: The invention comprises a liquid inlet pipe section, a connecting body and two liquid outlet pipe sections, wherein the connecting body comprises a first end and a second end, the first end and the second end are both open, and the first end and the second end are connected; the liquid inlet pipe section comprises a first liquid inlet port and a second liquid inlet port arranged at intervals, and further comprises a connecting port located between the first liquid inlet port and the second liquid inlet port and a guide plate arranged in the liquid inlet pipe section, the connecting port is connected to the first end of the connecting body; the direction from the first end of the connecting body to the second end is taken as the first direction, the guide plate and the connecting port are arranged opposite to each other in the first direction, and the guide plate extends toward the connecting port; The two liquid outlet pipe sections are both connected to and communicated with the second end of the connector.
2. The connecting pipe according to claim 1, characterized in that: The first liquid inlet is formed at one end of the liquid inlet pipe section, and the second liquid inlet is formed at the other end of the liquid inlet pipe section.
3. The connecting pipe according to claim 2, characterized in that: The liquid inlet pipe section is a U-shaped pipe section.
4. The connecting pipe according to any one of claims 1 to 3, characterized in that: The guide plate is connected to the inner wall of the liquid inlet pipe section opposite to the connecting port.
5. The connecting pipe according to claim 4, characterized in that: The cross section of the guide plate perpendicular to the first direction is S-shaped.
6. The connecting pipe according to claim 5, characterized in that: The guide plate extends along the first direction.
7. The connecting pipe according to claim 6, characterized in that: The size of the guide plate in the first direction is 1 / 2-2 / 3 of the size of the liquid inlet pipe section in the first direction.
8. The connecting pipe according to claim 3, characterized in that: The guide plate is centrally arranged between the first liquid inlet and the second liquid inlet.
9. The connecting pipe according to claim 8, characterized in that: Taking the arrangement direction of the first liquid inlet and the second liquid inlet as the second direction, in the second direction, the size of the guide plate is 1 / 2-2 / 3 of the size of the portion of the liquid inlet pipe section located between the first liquid inlet and the second liquid inlet.
10. A cooling system for a V-type engine, characterized in that: It comprises a heat exchanger, a side A delivery pump, a side B delivery pump and a connecting pipe as described in any one of claims 1 to 9, wherein the heat exchanger has a first liquid outlet for connecting to the side A delivery pump and a second liquid outlet for connecting to the side B delivery pump, the first liquid inlet is connected to the first liquid outlet, and the second liquid inlet is connected to the second liquid outlet; one of the two liquid outlet pipe sections is connected to the liquid inlet end of the side A delivery pump, and the other of the two liquid outlet pipe sections is connected to the liquid inlet end of the side B delivery pump.