A method and apparatus for regulating water pump suction temperature

Abstract

The embodiment of the present application provides a method and equipment for adjusting water pump inlet temperature, which is used to solve the problem that the water temperature deviation in the flow channel in front of the water pump inlet pipe is relatively large. In the present application, the water pump inlet pipe assembly comprises a first flow guide rib and a second flow guide rib arranged in a merging portion respectively, flow meters are arranged in two inlet pipes and two outlet pipes in the water pump inlet pipe assembly respectively, temperature sensors are arranged in the two inlet pipes, and the method comprises the following steps: determining the water flow and temperature in the first inlet pipe and the second inlet pipe and the water flow in the first outlet pipe and the second outlet pipe respectively; determining the temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe according to the water flow and temperature corresponding to the first inlet pipe and the second inlet pipe respectively and the water flow of the two outlet pipes; and adjusting the height of the first flow guide rib and the second flow guide rib in the merging portion respectively according to the temperature difference, so that the temperature difference between the two outlet pipes is within a set temperature difference range.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to a method and apparatus for adjusting the temperature of a water pump inlet. Background Technology

[0002] Currently, some marine diesel engines experience a significant temperature difference between the water outlets on both sides of the water pump inlet pipe during operation. One solution is to redesign the water pump inlet pipe by incorporating a central confluence zone to allow cold and hot water to mix evenly before flowing into the pumps on both sides. However, analysis revealed that this design fails to adequately mix the cold and hot water, resulting in a temperature difference between the water entering the two pumps. Therefore, the intended mixing is not achieved, thus affecting the engine's cooling performance. Summary of the Invention

[0003] This application provides a method and apparatus for adjusting the temperature of a water pump inlet, in order to solve the problem of large temperature deviation in the flow channel before the water pump inlet pipe.

[0004] In a first aspect, embodiments of this application provide a method for adjusting the temperature of a water pump inlet. The water pump inlet is connected to a water pump inlet pipe assembly. The water pump inlet pipe assembly includes a first guide rib on a first side plate and a second guide rib on a second side plate, respectively located opposite each other at a confluence. The projections of the first and second guide ribs on the plane of the first side plate intersect. Flow meters are respectively installed in the first inlet pipe, the second inlet pipe, the first outlet pipe, and the second outlet pipe of the water pump inlet pipe assembly. Temperature sensors are installed in the first inlet pipe and the second inlet pipe. The method includes:

[0005] The water flow rate and temperature in the first inlet pipe and the second inlet pipe, as well as the water flow rate in the first outlet pipe and the second outlet pipe, are determined respectively.

[0006] Based on the water flow rate and temperature corresponding to the first water inlet pipe and the second water inlet pipe respectively, and the water flow rate of the first water outlet pipe and the second water outlet pipe, determine the temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe.

[0007] Adjust the heights of the first and second guide ribs within the confluence according to the temperature difference, so that the temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe is within a set temperature difference range.

[0008] Based on the above solution, by setting a first guide rib on the first side plate and a second guide rib on the second side plate of the water pump inlet pipe assembly, the water flow direction is changed. During temperature difference adjustment, the flow rates in the two inlet pipes and the two outlet pipes, as well as the temperature of the two inlet pipes, can be detected to determine the temperature difference of the water flow in the two outlet pipes. Then, the height of the guide rib relative to the side plate within the confluence is adjusted based on the temperature difference to ensure that the adjusted temperature difference between the two outlet pipes meets the requirements.

[0009] In one possible implementation, the temperature difference between the temperature inside the first outlet pipe and the temperature inside the second outlet pipe is determined based on the water flow rate and temperature corresponding to the first inlet pipe and the second inlet pipe, respectively, and the water flow rate of the first outlet pipe and the second outlet pipe, including:

[0010] Based on computational fluid dynamics algorithms, the first temperature in the first outlet pipe and the second temperature in the second outlet pipe are determined according to the water flow rate and temperature corresponding to the first inlet pipe and the second inlet pipe, respectively, and the water flow rate of the first outlet pipe and the second outlet pipe.

[0011] The difference between the first temperature and the second temperature is taken as the temperature difference between the temperature inside the first water outlet pipe and the temperature inside the second water outlet pipe.

[0012] Based on the above scheme, the temperature difference between the two outlet pipes can be determined by using a fluid dynamics algorithm, based on the flow rate of the inlet and outlet pipes and the temperature inside the inlet pipe.

[0013] In one possible implementation, adjusting the heights of the first and second guide ribs within the confluence portion according to the temperature difference includes:

[0014] When the temperature difference is lower than the minimum value of the set temperature difference range, repeat the following operations: reduce the height of the first guide rib and the second guide rib in the confluence by a set height, and determine a new temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe after a first set time interval; until the new temperature difference is within the set temperature difference range.

[0015] When the temperature difference is higher than the maximum value of the set temperature difference range, repeat the following operations: increase the height of the first guide rib and the second guide rib in the confluence by a set height, and determine a new temperature difference between the temperature of the first water outlet pipe and the temperature of the second water outlet pipe after a first set time interval; until the new temperature difference is within the set temperature difference range.

[0016] In one possible implementation, the method further includes: when the temperature difference is within a set temperature difference range, determining a new temperature difference at a set time interval;

[0017] When the new temperature difference is not within the set temperature difference range, the heights of the first guide rib and the second guide rib within the confluence are adjusted according to the new temperature difference.

[0018] Based on the above scheme, when the temperature difference is determined to be within the set temperature difference range, the new temperature in the two water outlet pipes can be obtained again to determine the new temperature difference. Then, when the new temperature difference is not within the temperature difference range, the height of the first guide rib and the second guide rib can be adjusted again.

[0019] In one possible implementation, the method further includes:

[0020] When the new temperature difference is within the set temperature difference range, and the difference between the new temperature difference and the previously determined temperature difference is greater than the set value, at least one temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe is determined at a set time interval.

[0021] When it is determined that any one of the at least one temperature difference is not within the set temperature difference range, the heights of the first guide rib and the second guide rib within the confluence are adjusted.

[0022] Based on the above scheme, when the temperature difference meets the set conditions but the temperature difference changes significantly between two adjacent temperature differences, the temperature difference is obtained at a set time interval so that when the water flow of the two inlet pipes changes, the water temperature of the two outlet pipes can be adjusted in a timely manner to meet the requirements.

[0023] In one possible implementation, the height H1 of the first guide rib protruding from the first side plate toward the second side plate satisfies: 0 < H1 < 0.5H;

[0024] The height H2 of the second guide rib protruding from the second side plate toward the first side plate satisfies: 0 < H2 < 0.5H;

[0025] Where H is the distance between the first side plate and the second side plate.

[0026] In one possible implementation, there are two or more first guide ribs, each of which is parallel to the others and is spaced apart from any two adjacent first guide ribs; there are also two or more second guide ribs, each of which is parallel to the others and is spaced apart from any two adjacent second guide ribs.

[0027] Secondly, embodiments of this application provide an execution device, which includes a processor and a memory;

[0028] The memory is used to store program instructions;

[0029] The processor is configured to acquire program instructions from the memory and execute the methods described in the first aspect and different implementations of the first aspect according to the acquired program instructions.

[0030] Thirdly, embodiments of this application provide a computer-readable storage medium storing a computer program, the computer program including program instructions, which, when executed by a computer, cause the computer to perform the method described in the first aspect and different implementations of the first aspect.

[0031] Fourthly, embodiments of this application provide a computer program product, the computer program product comprising: computer program code, which, when run on a computer, causes the computer to execute the method described in the first aspect and different implementations of the first aspect.

[0032] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A front view of the water pump inlet pipe assembly provided in an embodiment of this application;

[0035] Figure 2 A front view of the water pump inlet pipe assembly provided in this application embodiment without the first guide rib installed;

[0036] Figure 3 A rear view of the water pump inlet pipe assembly provided in an embodiment of this application;

[0037] Figure 4 A rear view of the water pump inlet pipe assembly provided in this application embodiment without the second guide rib installed;

[0038] Figure 5 A side view of a water pump inlet pipe assembly provided in an embodiment of this application;

[0039] Figure 6 A flowchart of a method for adjusting the inlet temperature of a water pump, provided as an embodiment of this application;

[0040] Figure 7 A flowchart for adjusting the height of the guide ribs is provided in an embodiment of this application;

[0041] Figure 8 A structural diagram of a device for adjusting the inlet temperature of a water pump, provided in an embodiment of this application;

[0042] Figure 9 This is a schematic diagram of the structure of an execution device provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Currently, some marine diesel engines experience a significant temperature difference between the water outlets on both sides of the water pump inlet pipe during operation. One solution is to redesign the water pump inlet pipe by incorporating a central confluence zone to allow cold and hot water to mix evenly before flowing into the pumps on both sides. However, analysis revealed that this design fails to adequately mix the cold and hot water, resulting in a temperature difference between the water entering the two pumps. Therefore, the intended mixing is not achieved, thus affecting the engine's cooling performance.

[0047] Based on the above problems, this application provides a method and apparatus for adjusting the temperature of a water pump inlet, applied to a cooling system including a water pump inlet pipe assembly. The water pump inlet pipe assembly includes a first guide rib on a first side plate and a second guide rib on a second side plate, respectively disposed opposite to each other at a confluence. The projections of the first guide rib on the plane of the first side plate and the projections of the second guide rib on the plane of the first side plate are intersected. Flow meters are respectively installed in the first inlet pipe, the second inlet pipe, the first outlet pipe, and the second outlet pipe of the water pump inlet pipe assembly. Temperature sensors are installed in the first inlet pipe and the second inlet pipe. The temperature difference between the two outlet pipes is determined by the water volume obtained from the flow meters and the temperature obtained from the temperature sensors. The heights of the first and second guide ribs within the confluence are then adjusted based on the temperature difference, thereby ensuring that the temperature difference between the two outlet pipes remains within a set temperature range.

[0048] The structure of the water pump inlet pipe assembly involved in the embodiments of this application will be described below.

[0049] refer to Figures 1 to 5 The water pump inlet pipe assembly in this embodiment may include a first inlet pipe 100, a second inlet pipe 200, a confluence portion 300, a first outlet pipe 400, a second outlet pipe 500, a first guide rib 600, and a second guide rib 700. The confluence portion 300 includes a first side plate 310, a second side plate 320, and a connecting plate 330. The first side plate 310 and the second side plate 320 are disposed opposite to each other, and the connecting plate 330 connects between the first side plate 310 and the second side plate 320, so that the first side plate 310, the second side plate 320, and the connecting plate 330 enclose a receiving space. The first inlet pipe 100, the second inlet pipe 200, the first outlet pipe 400, and the second outlet pipe 500 are all connected to the connecting plate 330 and communicate with the receiving space. In other words, the water flowing in from the first inlet pipe 100 and the second inlet pipe 200 flows through the confluence 300 and then to the first outlet pipe 400 and the second outlet pipe 500.

[0050] like Figure 1As shown, the water pump inlet pipe assembly in this embodiment is applied to the water pipe before the pump. To facilitate the connection between the first outlet pipe 400 and the second outlet pipe 500 and the water pump, the first inlet pipe 100 and the second inlet pipe 200 can be located on the side away from the water pump, and the first outlet pipe 400 and the second outlet pipe 500 can be located on the side closer to the water pump. In other words, in this embodiment, the first inlet pipe 100 and the second inlet pipe 200 are designed to be in a non-diagonal position, and the first outlet pipe 400 and the second outlet pipe 500 are also designed to be in a non-diagonal position. However, the first inlet pipe 100 and the second outlet pipe 500 can be considered roughly diagonally designed, and the second inlet pipe 200 and the first outlet pipe 400 can also be considered roughly diagonally designed.

[0051] In some embodiments, the first guide rib 600 in this embodiment can be one first guide rib, or two or more first guide ribs, and the second guide rib 700 can be one second guide rib, or two or more second guide ribs. This application does not specifically limit the specific number of guide ribs. Specifically, in conjunction with... Figure 2 , Figure 4 and Figure 5 The first guide rib 600 is disposed on the first side plate 310, and at least a portion of the first guide rib 600 protrudes from the side surface of the first side plate 310 facing the second side plate 320. The second guide rib 700 is disposed on the second side plate 320, and at least a portion of the second guide rib 700 protrudes from the side surface of the second side plate 320 facing the first side plate 310.

[0052] In some embodiments, the projections of the first guide rib on the plane of the first side plate and the projections of the second guide rib on the plane of the first side plate are intersecting. Since the first side plate and the second side plate are arranged opposite each other, it can also be understood that the projections of the first guide rib on the plane of the first side plate and the projections of the second guide rib on the plane of the first side plate are intersecting. (Reference) Figure 1 or Figure 3 The extension directions of the first guide rib 600 and the second guide rib 700 on the first side plate are intersected, so that the water flowing into the confluence 300 from the first inlet pipe 100 flows to the first outlet pipe 400 and the second outlet pipe 500 with the cooperation of the first guide rib 600 and the second guide rib 700. In addition, the water flowing into the confluence 300 from the second inlet pipe 200 also flows to the first outlet pipe 400 and the second outlet pipe 500 with the cooperation of the first guide rib 600 and the second guide rib 700.

[0053] It should be understood that the water pump inlet pipe assembly in this embodiment can be applied to the engine cooling system. When the inlet water temperatures of the first inlet pipe 100 and the second inlet pipe 200 are different, assuming that the water in the first inlet pipe 100 is high temperature and the water in the second inlet pipe 200 is low temperature, without the first guide rib 600 and the second guide rib 700, the water in the first inlet pipe 100 flows to the first outlet pipe 400 and the water in the second inlet pipe 200 flows to the second outlet pipe 500, resulting in a high outlet water temperature in the first outlet pipe 400 and a low outlet water temperature in the second outlet pipe 500. With the first guide rib 600 and the second guide rib 700 installed, a portion of the high-temperature water in the first inlet pipe 100 flows to the second outlet pipe 500, and a portion of the low-temperature water in the second inlet pipe 200 flows to the first outlet pipe 400. This results in the first outlet pipe 400 and the second outlet pipe 500 containing mixed high-temperature water and low-temperature water, thereby reducing the temperature difference between the outlet water of the first outlet pipe 400 and the second outlet pipe 500 and making the outlet water temperatures of the first outlet pipe 400 and the second outlet pipe 500 basically the same.

[0054] As mentioned above, the first guide rib 600 and the second guide rib 700 can be one, two, three, etc. When there is one first guide rib 600, it can be located at the center of the first side plate 310. When there is one second guide rib 700, it can also be located at the center of the second side plate 320. When there are two first guide ribs 600, they can be symmetrically arranged, for example, with the center line of the first side plate 310 as the axis of symmetry. Similarly, when there are two second guide ribs 700, they can be symmetrically arranged, for example, with the center line of the second side plate 320 as the axis of symmetry. Furthermore, when there are two or more first guide ribs 600, they are parallel to each other, and any two adjacent first guide ribs 600 are spaced apart. When there are two or more second guide ribs 700, each second guide rib 700 is parallel to the others, and any two adjacent second guide ribs 700 are spaced apart.

[0055] Combination Figure 1 and Figure 3Taking two guide ribs, 600 and 700, as an example, the extension direction of the first guide rib 600 is consistent with the water flow direction in the first inlet pipe 100, and the extension direction of the second guide rib 700 is consistent with the water flow direction in the second inlet pipe 200. A channel a is formed between the two first guide ribs 600, with the extension direction consistent with that of the first guide rib 600. This channel a can be used to guide water from the first inlet pipe 100 to the second outlet pipe 500. Similarly, a channel b is formed between the two second guide ribs 700, with the extension direction consistent with that of the second guide rib 700. This channel b can be used to guide water from the second inlet pipe 200 to the first outlet pipe 400, thereby increasing the mixed water flow in the first outlet pipe 400 and the second outlet pipe 500 and reducing the temperature difference between the outlet water of the first outlet pipe 400 and the second outlet pipe 500.

[0056] In this embodiment, the amount of water diverted in the first inlet pipe 100 and the second inlet pipe 200 can be adjusted by adjusting the height of channel a and channel b. It can be understood that when the height of channel a is higher, more water in the first inlet pipe 100 can enter the second outlet pipe 500 through channel a, and when the height of channel b is higher, more water in the second inlet pipe 200 can enter the first outlet pipe 400 through channel b.

[0057] Specifically, as an optional implementation scheme, such as Figure 2 and Figure 4 As shown, the first side plate 310 may be provided with a first fixing groove 311 corresponding to each of the first guide ribs 600. Each first guide rib 600 is respectively installed in the corresponding first fixing groove 311, and at least a portion of the first guide rib 600 protrudes from the side surface of the first side plate 310 opposite to the second side plate 320. The second side plate 320 may be provided with a second fixing groove 321 corresponding to each of the second guide ribs 700. Each second guide rib 700 is respectively installed in the corresponding second fixing groove 321, and at least a portion of the second guide rib 700 protrudes from the side surface of the second side plate 320 opposite to the first side plate 310.

[0058] The first guide rib 600 can move relative to the first fixed groove 311 along the arrangement direction of the first side plate 310 and the second side plate 320 to change the height of the first guide rib 600 protruding from the surface of the first side plate 310 facing the second side plate 320, thereby changing the volume of channel a and thus changing the temperature of the mixed water in the first outlet pipe 400 and the second outlet pipe 500. Similarly, the second guide rib 700 can move relative to the second fixed groove 321 along the arrangement direction of the first side plate 310 and the second side plate 320 to change the height of the second guide rib 700 protruding from the surface of the second side plate 320 facing the first side plate 310, thereby changing the volume of channel b and thus changing the temperature of the mixed water in the first outlet pipe 400 and the second outlet pipe 500.

[0059] When adjusting the relative position between the first guide rib 600 and the first fixing groove 311, this can be achieved by contacting the portion of the first guide rib 600 located outside the confluence portion 300 (i.e., the portion of the first guide rib 600 protruding from the first side plate 310 and facing away from the second side plate 320), for example, by manual adjustment or by using a driving device. Similarly, when adjusting the relative position between the second guide rib 700 and the first fixing groove 311, this can be achieved by contacting the portion of the second guide rib 700 protruding from the second side plate 320 and facing away from the first side plate 310.

[0060] Furthermore, the first guide rib 600 and the first fixing groove 311 are interference-fitted, and the second guide rib 700 and the second fixing groove 321 are interference-fitted. It should be noted that, taking the first guide rib 600 and the first fixing groove 311 as an example, the interference fit between the first guide rib 600 and the first fixing groove 311 can be understood as follows: when a portion of the first guide rib 600 is located within the first fixing groove 311, without external force driving the first guide rib 600 along the arrangement direction of the first side plate 310 and the second side plate 320, the first guide rib 600 and the first fixing groove 311 can remain relatively fixed. When interfered by external force, the first guide rib 600 can move relative to the first fixing groove 311. In this way, after the height adjustment of the first guide rib 600 or the second guide rib 700 is completed, the height of the first guide rib 600 or the second guide rib 700 remains fixed, thereby ensuring the stability of the water outlet temperature of the first water outlet pipe 400 and the second water outlet pipe 500.

[0061] As an optional implementation, the water pump inlet pipe assembly in this embodiment further includes a first driving device (not shown in the figure) and a second driving device (not shown in the figure). The first driving device is used to drive each of the first guide ribs 600 to move synchronously along the arrangement direction of the first side plate 310 and the second side plate 320, and the second driving device is used to drive each of the second guide ribs 700 to move synchronously along the arrangement direction of the first side plate 310 and the second side plate 320. In this way, the height of each of the first guide ribs 600 protruding from the surface of the first side plate 310 facing the second side plate 320 can be the same, and the height of each of the second guide ribs 700 protruding from the surface of the second side plate 320 facing the first side plate 310 can also be the same.

[0062] In specific implementations, the first driving device can be, for example, a motor, a cylinder, or a ball screw, and similarly, the second driving device can also be a motor, a cylinder, or a ball screw. For example, when both the first and second driving devices are motors, the output shafts of the two motors are fixedly connected to the first guide rib 600 and the second guide rib 700, respectively, so that the motors can drive the first guide rib 600 or the second guide rib 700 to move. It is worth noting that when there are two or more first guide ribs 600 and second guide ribs 700, the output shaft of one motor can be fixedly connected to the portion of the multiple first guide ribs 600 located outside the confluence portion 300 via a connecting structure, and the output shaft of another motor can be fixedly connected to the portion of the multiple second guide ribs 700 located outside the confluence portion 300 via a connecting structure, thereby enabling each motor to drive each first guide rib 600 or each second guide rib 700 to move synchronously when operating.

[0063] Of course, as in other implementations, the number of first driving devices can also correspond one-to-one with the number of first guide ribs 600, and the number of second driving devices can also correspond one-to-one with the number of second guide ribs 700. For example, both the first and second driving devices can be miniature cylinders to save space. When driving each first guide rib 600 or each second guide rib 700 to move, each miniature cylinder works synchronously, thereby enabling synchronous movement of each first guide rib 600 or each second guide rib 700.

[0064] Furthermore, the water pump inlet pipe assembly in this embodiment may also include flow meters respectively disposed in the first inlet pipe 100, the second inlet pipe 200, the first outlet pipe 400, and the second outlet pipe 500. The flow meters in each pipe can be used to measure the flow rate in the first inlet pipe 100, the second inlet pipe 200, the first outlet pipe 400, and the second outlet pipe 500, respectively. The water pump inlet pipe assembly may also include temperature sensors respectively disposed in the first inlet pipe 100 and the second inlet pipe 200. Each temperature sensor can be used to detect the water temperature in the first inlet pipe 100 and the second inlet pipe 200, respectively. Based on this, a control unit can be set up and a control strategy can be formulated. For example, the control unit can control the operation of the first drive device and the second drive device according to the temperature difference in the first water outlet pipe 400 and the second water outlet pipe 500, thereby adjusting the height of the first guide rib 600 and the second guide rib 700 in the confluence 300 so that when the water flow rate and temperature in the first water inlet pipe 100 and the second water inlet pipe 200 are different, the water temperature when flowing out of the first water outlet pipe 400 and the second water outlet pipe 500 is the same.

[0065] In this embodiment, the distance between the first side plate 310 and the second side plate 320 is H. When the height H1 of the first guide rib 600 protruding from the surface of the first side plate 310 facing the second side plate 320 is adjusted, H1 must satisfy: 0 < H1 < 0.5H. When the height H2 of the second guide rib 700 protruding from the surface of the second side plate 320 facing the first side plate 310 is adjusted, H2 must satisfy: 0 < H2 < 0.5H. Through the above design, on the one hand, interference between the first guide rib 600 and the second guide rib 700 can be avoided when the protrusion height of the first guide rib 600 or the second guide rib 700 is too high; on the other hand, the pressure drop can be avoided when the protrusion height of the first guide rib 600 or the second guide rib 700 is too high.

[0066] This application provides a method for adjusting the inlet temperature of a water pump, referring to... Figure 6 As shown, the specific process of this method is as follows:

[0067] 601, determine the water flow rate and temperature in the first inlet pipe and the second inlet pipe, and the water flow rate in the first outlet pipe and the second outlet pipe, respectively.

[0068] 602. Based on the water flow rate and temperature corresponding to the first and second water inlets respectively, and the water flow rate of the first and second water outlets, determine the temperature difference between the temperature in the first and second water outlets.

[0069] In some embodiments, computational fluid dynamics algorithms can be used to determine a first temperature in the first outlet pipe and a second temperature in the second outlet pipe, based on the water flow rate and temperature corresponding to the first and second inlet pipes, respectively, and the water flow rate of the first and second outlet pipes. Furthermore, the difference between the first and second temperatures can be used as the temperature difference between the temperatures in the first and second outlet pipes.

[0070] 603. Adjust the height of the first guide rib and the second guide rib in the confluence part according to the temperature difference so that the temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe is within the set temperature difference range.

[0071] In some embodiments, when the temperature difference is lower than the minimum value of the set temperature difference range, the following operations are repeated: the height of the first guide rib and the second guide rib in the confluence is reduced by a set height, and after a first set time interval, a new temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe is determined; until the new temperature difference is within the set temperature difference range.

[0072] In some scenarios, taking a first inlet pipe as a high-temperature inlet pipe and a second inlet pipe as a low-temperature inlet pipe, and a first outlet pipe on the same side as the high-temperature inlet pipe and roughly diagonally opposite to the low-temperature inlet pipe, and a second outlet pipe on the same side as the low-temperature inlet pipe and roughly diagonally opposite to the high-temperature inlet pipe as an example. Assume that the temperature difference between the first outlet pipe's temperature T1 and the second outlet pipe's temperature T2 is determined by calculation to be T0, and the temperature difference range is set to -1 to 1 degree Celsius. When T1 - T2 = T0, and T0 is -2.2 degrees Celsius, it indicates that the height of the first and second guide ribs within the confluence is too high, causing more high-temperature water from the high-temperature inlet pipe to enter channel a, and more low-temperature water from the low-temperature inlet pipe to enter channel b. Therefore, the height of the first and second guide ribs within the confluence can be reduced. In some scenarios, the height of the first and second guide ribs within the confluence can be adjusted using a drive device in the cooling system.

[0073] In some scenarios, after lowering the height of the first and second guide ribs, new flow rates and temperatures can be obtained after a set time interval, thereby determining a new temperature difference between the two outlet pipes. The set time interval can be set to 3 minutes to avoid unstable water temperatures due to the water flow not yet stabilizing after the guide rib height adjustment.

[0074] In other embodiments, when the temperature difference is higher than the maximum value of the set temperature difference range, the following operations are repeated: the height of the first guide rib and the second guide rib in the confluence is increased by a set height, and a new temperature difference between the temperature of the first water outlet pipe and the temperature of the second water outlet pipe is determined after a first set time interval; until the new temperature difference is within the set temperature difference range.

[0075] Continuing with the example above, suppose the temperature difference between the first outlet pipe (T1) and the second outlet pipe (T2) is determined to be T0, and the temperature difference range is set to -1 to 1 degree Celsius. When T1 - T2 = T0, and T0 is 1.2 degrees Celsius, it indicates that the height of the first and second guide ribs within the confluence is too small, causing more high-temperature water from the high-temperature inlet pipe to enter channel a, and more low-temperature water from the low-temperature inlet pipe to enter channel b. Therefore, the height of the first and second guide ribs within the confluence can be increased by a predetermined amount.

[0076] In some scenarios, when the temperature difference is within a set temperature difference range, a new temperature difference is determined at a set time interval. When the new temperature difference is outside the set temperature difference range, the heights of the first and second guide ribs within the confluence are adjusted according to the new temperature difference.

[0077] In some embodiments, when the new temperature difference is within a set temperature difference range and the difference between the new temperature difference and the previously determined temperature difference is greater than a set value, at least one temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe is determined at a set time interval.

[0078] When it is determined that any one of the at least one temperature difference is outside the set temperature difference range, adjust the height of the first guide rib and the second guide rib within the confluence.

[0079] As an example, when the new temperature difference is determined to be 0.8 degrees and the first temperature difference is 0.3, when the set value is 0.3, the difference between the second temperature difference and the first temperature difference is 0.5, which is greater than the set value. At this time, it can be determined that there is a change in the temperature and / or flow rate of the water in the two inlet pipes. Further monitoring is then carried out so that when the temperature difference is not within the set temperature difference range, the height of the first guide rib and the second guide rib in the confluence is adjusted.

[0080] In some embodiments, the first inlet pipe is a high-temperature inlet pipe, the second inlet pipe is a low-temperature inlet pipe, the first outlet pipe is on the same side as the high-temperature inlet pipe and approximately diagonally opposite to the low-temperature inlet pipe, and the second outlet pipe is on the same side as the low-temperature inlet pipe and approximately diagonally opposite to the high-temperature inlet pipe. The temperatures T1 and T2 of the first and second outlet pipes, and the flow rates L1, L2, L3, and L4 of the first and second inlet pipes are determined. Further, based on T1, T2, L1, L2, L3, and L4, the temperature difference T0 between the first and second outlet pipes can be determined through fluid dynamics calculations. When T0 is within the set temperature difference range, there is no need to adjust the height of the guide ribs; otherwise, the height of the guide ribs needs to be adjusted until the temperature difference T0 is within the set temperature difference range. Figure 7 As shown.

[0081] Based on the same technical concept, see [link / reference] Figure 8 As shown, this application embodiment provides a device 800 for adjusting the inlet temperature of a water pump. This device 800 can perform any step in the above-described method for adjusting the inlet temperature of a water pump. To avoid repetition, further details are omitted here. The device 800 includes a determining module 801 and an adjusting module 802.

[0082] The determining module 801 is used to determine the water flow rate and temperature in the first water inlet pipe and the second water inlet pipe, as well as the water flow rate in the first water outlet pipe and the second water outlet pipe, respectively.

[0083] Based on the water flow rate and temperature corresponding to the first water inlet pipe and the second water inlet pipe respectively, and the water flow rate of the first water outlet pipe and the second water outlet pipe, determine the temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe.

[0084] The adjustment module 802 is used to adjust the height of the first guide rib and the second guide rib in the confluence according to the temperature difference, so that the temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe is within a set temperature difference range.

[0085] In some embodiments, when determining the temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe based on the water flow rate and temperature corresponding to the first inlet pipe and the second inlet pipe, respectively, and the water flow rate of the first outlet pipe and the second outlet pipe, the determining module 801 is specifically used for:

[0086] Based on computational fluid dynamics algorithms, the first temperature in the first outlet pipe and the second temperature in the second outlet pipe are determined according to the water flow rate and temperature corresponding to the first inlet pipe and the second inlet pipe, respectively, and the water flow rate of the first outlet pipe and the second outlet pipe.

[0087] The difference between the first temperature and the second temperature is taken as the temperature difference between the temperature inside the first water outlet pipe and the temperature inside the second water outlet pipe.

[0088] In some embodiments, when adjusting the heights of the first and second guide ribs within the confluence portion according to the temperature difference, the adjustment module 802 is specifically used for:

[0089] When the temperature difference is lower than the minimum value of the set temperature difference range, repeat the following operations: reduce the height of the first guide rib and the second guide rib in the confluence by a set height, and determine a new temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe after a first set time interval; until the new temperature difference is within the set temperature difference range.

[0090] When the temperature difference is higher than the maximum value of the set temperature difference range, repeat the following operations: increase the height of the first guide rib and the second guide rib in the confluence by a set height, and determine a new temperature difference between the temperature of the first water outlet pipe and the temperature of the second water outlet pipe after a first set time interval; until the new temperature difference is within the set temperature difference range.

[0091] In some embodiments, the determining module 801 is further configured to determine a new temperature difference at a set time interval when the temperature difference is within a set temperature difference range;

[0092] The adjustment module 802 is further configured to adjust the height of the first guide rib and the second guide rib within the confluence portion according to the new temperature difference when the new temperature difference is not within the set temperature difference range.

[0093] In some embodiments, the determining module 801 is further configured to determine at least one temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe at a set time interval when the new temperature difference is within the set temperature difference range and the difference between the new temperature difference and the previously determined temperature difference is greater than a set value.

[0094] The adjustment module 802 is further configured to adjust the heights of the first guide rib and the second guide rib within the confluence when it is determined that any one of the at least one temperature difference is not within the set temperature difference range.

[0095] In some embodiments, the height H1 of the first guide rib protruding from the first side plate toward the second side plate satisfies: 0 < H1 < 0.5H;

[0096] The height H2 of the second guide rib protruding from the second side plate toward the first side plate satisfies: 0 < H2 < 0.5H;

[0097] Where H is the distance between the first side plate and the second side plate.

[0098] In some embodiments, there are two or more first guide ribs, each of which is parallel to the others and is spaced apart from any two adjacent first guide ribs; there are two or more second guide ribs, each of which is parallel to the others and is spaced apart from any two adjacent second guide ribs.

[0099] Based on the same technical concept, see [link / reference] Figure 9 As shown, this application embodiment provides an electronic device 900, which can perform any step of the above-described method for adjusting the inlet temperature of a water pump. To avoid repetition, further details are omitted here. Device 900 includes a memory 901 and a processor 902.

[0100] The memory 901 is used to store program instructions;

[0101] The processor 902 is used to call the program instructions stored in the memory and execute the various steps of the method for adjusting the water pump inlet temperature according to the obtained program.

[0102] In the embodiments of this application, the processor 902 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0103] Memory 901, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. Memory 901 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (RAM), static random access memory (SRAM), programmable read-only memory (PROM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic memory, magnetic disk, optical disk, etc. Memory 901 can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures that can be accessed by a computer, but is not limited thereto. In the embodiments of this application, memory 901 can also be a circuit or any other device capable of implementing storage functions for storing program instructions and / or data.

[0104] Based on the same design concept, this application also provides a cooling system, which may include a first water pump, a second water pump, and a water pump inlet pipe assembly as mentioned in the above embodiments. The outlet of the first outlet pipe 400 is connected to the first water pump, and the outlet of the second outlet pipe 500 is connected to the second water pump. Cooling water of different temperatures can flow into the first inlet pipe 100 and the second inlet pipe 200 respectively. With the cooperation of the first guide rib 600 and the second guide rib 700 at the confluence 300, a portion of the cooling water from the first inlet pipe 100 and the second inlet pipe 200 flows into the first outlet pipe 400, and a portion of the cooling water from the second inlet pipe 200 enters the second outlet pipe 500. The cooling water in both outlet pipes is cooled water that has undergone a mixture of high and low temperatures, thereby ensuring that the temperature of the cooling water flowing into the first and second water pumps is consistent. This guarantees a good cooling effect of the cooling system.

[0105] Based on the same design concept, embodiments of this application may also provide an engine, which may include the cooling system described in the above embodiments. Because the cooling system has a good cooling effect, it ensures good engine performance. In application, the engine may be, for example, a marine diesel engine.

[0106] Based on the same technical concept, embodiments of this application provide a computer-readable storage medium storing computer instructions that, when executed on a computer, cause the computer to perform the various steps of the method described above for adjusting the inlet temperature of a water pump.

[0107] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0108] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0109] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0110] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0111] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for adjusting the inlet temperature of a water pump, characterized in that, The water pump inlet is connected to the water pump inlet pipe assembly. The water pump inlet pipe assembly includes a first inlet pipe, a second inlet pipe, a confluence, a first outlet pipe, and a second outlet pipe. The confluence includes a first side plate, a second side plate, and a connecting plate. The first and second side plates are arranged opposite to each other, and the connecting plate is connected between the first and second side plates. The first, second, first, and second outlet pipes are all connected to the connecting plate. The first and second outlet pipes are diagonally designed, and the second and first outlet pipes are also diagonally designed. The water pump inlet pipe assembly also includes a first guide rib on the first side plate and a second guide rib on the second side plate, which are respectively located on opposite sides of the confluence. The projections of the first and second guide ribs on the plane of the first side plate are intersecting. Flow meters are respectively installed in the first, second, first, and second outlet pipes of the water pump inlet pipe assembly. Temperature sensors are installed in the first and second inlet pipes. The method includes: The water flow rate and temperature in the first inlet pipe and the second inlet pipe, as well as the water flow rate in the first outlet pipe and the second outlet pipe, are determined respectively. Based on the water flow rate and temperature corresponding to the first water inlet pipe and the second water inlet pipe respectively, and the water flow rate of the first water outlet pipe and the second water outlet pipe, determine the temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe. Adjust the heights of the first guide rib and the second guide rib within the confluence according to the temperature difference, so that the temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe is within the set temperature difference range. Specifically, determining the temperature difference between the temperature inside the first outlet pipe and the temperature inside the second outlet pipe, based on the water flow rate and temperature corresponding to the first and second inlet pipes respectively, and the water flow rate of the first and second outlet pipes, includes: Based on computational fluid dynamics algorithms, the first temperature in the first outlet pipe and the second temperature in the second outlet pipe are determined according to the water flow rate and temperature corresponding to the first inlet pipe and the second inlet pipe, respectively, and the water flow rate of the first outlet pipe and the second outlet pipe. The difference between the first temperature and the second temperature is taken as the temperature difference between the temperature inside the first water outlet pipe and the temperature inside the second water outlet pipe.

2. The method as described in claim 1, characterized in that, The step of adjusting the heights of the first guide rib and the second guide rib within the confluence portion according to the temperature difference includes: When the temperature difference is lower than the minimum value of the set temperature difference range, repeat the following operations: reduce the height of the first guide rib and the second guide rib in the confluence by a set height, and determine a new temperature difference between the temperature in the first outlet pipe and the temperature in the second outlet pipe after a first set time interval; until the new temperature difference is within the set temperature difference range. When the temperature difference is higher than the maximum value of the set temperature difference range, repeat the following operations: increase the height of the first guide rib and the second guide rib in the confluence by a set height, and determine a new temperature difference between the temperature of the first water outlet pipe and the temperature of the second water outlet pipe after a first set time interval; until the new temperature difference is within the set temperature difference range.

3. The method as described in claim 1, characterized in that, The method further includes: When the temperature difference is within the set temperature difference range, a new temperature difference is determined at a set time interval; When the new temperature difference is not within the set temperature difference range, the heights of the first guide rib and the second guide rib within the confluence are adjusted according to the new temperature difference.

4. The method as described in claim 2, characterized in that, The method further includes: When the new temperature difference is within the set temperature difference range, and the difference between the new temperature difference and the previously determined temperature difference is greater than the set value, at least one temperature difference between the temperature in the first water outlet pipe and the temperature in the second water outlet pipe is determined at a set time interval. When it is determined that any one of the at least one temperature difference is not within the set temperature difference range, the heights of the first guide rib and the second guide rib within the confluence are adjusted.

5. The method according to any one of claims 1-4, characterized in that, The height H1 of the first guide rib protruding from the first side plate toward the second side plate satisfies: 0 < H1 < 0.5H; The height H2 of the second guide rib protruding from the second side plate toward the first side plate satisfies: 0 < H2 < 0.5H; Where H is the distance between the first side plate and the second side plate.

6. The method according to any one of claims 1-4, characterized in that, There are two or more first guide ribs, all of which are parallel to each other and are spaced apart from any two adjacent first guide ribs. There are also two or more second guide ribs, all of which are parallel to each other and are spaced apart from any two adjacent second guide ribs.

7. An execution device, characterized in that, The execution device includes a processor and a memory; The memory is used to store program instructions; The processor is configured to call program instructions stored in the memory and execute the method as described in any one of claims 1-6 according to the obtained program instructions.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, the computer program including program instructions that, when executed by a computer, cause the computer to perform the method as described in any one of claims 1-6.

9. A computer program product, characterized in that, The computer program product includes: computer program code, which, when run on a computer, causes the computer to perform the method described in any one of claims 1-6.

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