Water pump water inlet pipe assembly, cooling system and engine

Abstract

The utility model relates to the technical field of engines, discloses a water pump water inlet pipe assembly, a cooling system and an engine, and aims to solve the problem that water temperature deviation of water pumps on two sides of an existing diesel engine is large. The water pump water inlet pipe assembly comprises a first water inlet pipe, a second water inlet pipe, a converging part, a first water outlet pipe, a second water outlet pipe, a first flow guide rib and a second flow guide rib, and the converging part comprises a first side plate, a second side plate and a connecting plate connected between the first side plate and the second side plate, the first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe communicate with the containing space. At least one part of the first flow guide rib protrudes out of the surface of the side, facing the second side plate, of the first side plate, and at least one part of the second flow guide rib protrudes out of the surface of the side, facing the first side plate, of the second side plate. And the extension direction of the orthographic projection of the first flow guide rib on the first plane is crossed with the extension direction of the orthographic projection of the second flow guide rib on the first plane.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a water pump water inlet pipe component, a cooling system and an engine. Background Art

[0002] At present, some marine diesel engines have a problem of high water temperature deviation on both sides AB in their cooling system during use. After analysis, it was found that when the large and small circulation water volumes were 1:1, the small circulation high-temperature cooling water almost all flowed to the A side, and the large circulation low-temperature cooling water almost all flowed to the B side, resulting in a large water temperature deviation on both sides AB of the diesel engine, which in turn affected the cooling effect of the diesel engine. Utility Model Content

[0003] The utility model provides a water pump water inlet pipe component, a cooling system and an engine, which are used to solve the problem of large water temperature deviation of water pumps on both sides of the existing diesel engine.

[0004] In a first aspect, the utility model provides a water pump inlet pipe assembly, which is applied to a cooling system of an engine, wherein the water pump inlet pipe assembly comprises a first water inlet pipe, a second water inlet pipe, a junction, a first water outlet pipe, a second water outlet pipe, at least one first guide rib and at least one second guide rib;

[0005] The confluence portion includes a first side plate and a second side plate that are arranged opposite to each other, and a connecting plate connected between the first side plate and the second side plate, and the first side plate, the second side plate and the connecting plate are surrounded to form an accommodating space;

[0006] The first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe are respectively connected to the connecting plate and are respectively communicated with the accommodating space;

[0007] The at least one first guide rib is provided on the first side plate, and at least a portion of the first guide rib protrudes from a side surface of the first side plate facing the second side plate; the at least one second guide rib is provided on the second side plate, and at least a portion of the second guide rib protrudes from a side surface of the second side plate facing the first side plate;

[0008] An extension direction of the orthographic projection of the first guide rib on the first plane is cross-arranged with an extension direction of the orthographic projection of the second guide rib on the first plane, so that a portion of the water flow entering the confluence through the first water inlet pipe flows to the first water outlet pipe, and another portion flows to the second water outlet pipe, and a portion of the water flow entering the confluence through the second water inlet pipe flows to the first water outlet pipe, and another portion flows to the second water outlet pipe, wherein the first plane is the plane where the first side panel or the second side panel is located.

[0009] The water pump inlet pipe assembly provided by the utility model is provided with a first guide rib and a second guide rib at the confluence portion, at least a portion of the first guide rib protrudes from a side surface of the first side plate facing the second side plate, at least a portion of the second guide rib protrudes from a side surface of the second side plate facing the first side plate, and the first guide rib and the second guide rib are arranged crosswise. Assuming that the first water inlet pipe is used to flow in high-temperature cooling water, and the second water inlet pipe is used to flow in low-temperature cooling water, under the cooperation of the first guide rib and the second guide rib, a part of the high-temperature cooling water flows to the first water outlet pipe, and the other part flows to the second water outlet pipe, and under the cooperation of the first guide rib and the second guide rib, a part of the low-temperature cooling water flows to the first water outlet pipe, and the other part flows to the second water outlet pipe, so that the first water outlet pipe and the second water outlet pipe are both high-temperature cooling water and low-temperature cooling water mixed with each other, thereby reducing the outlet water temperature difference between the first water outlet pipe and the second water outlet pipe, ensuring that the outlet water temperatures of the first water outlet pipe and the second water outlet pipe are basically consistent, and ensuring the cooling performance of the engine.

[0010] In some possible implementation schemes, when there are two or more first guide ribs, the first guide ribs are parallel to each other, and any two adjacent first guide ribs are spaced apart from each other;

[0011] When there are two or more second guide ribs, the second guide ribs are parallel to each other, and any two adjacent second guide ribs are spaced apart.

[0012] In some possible implementation schemes, an extension direction of the first guide rib is consistent with a water flow direction in the first water inlet pipe, and an extension direction of the second guide rib is consistent with a water flow direction in the second water inlet pipe.

[0013] In some possible implementation schemes, the first side plate is provided with first fixing grooves corresponding to the first guide ribs one by one, and the first guide ribs are respectively installed in the corresponding first fixing grooves, and at least a portion of the first guide ribs protrudes from a surface of the first side plate facing away from the second side plate;

[0014] The second side plate is provided with second fixing grooves corresponding to the second guide ribs one by one, and the second guide ribs are respectively installed in the corresponding second fixing grooves, and at least a part of the second guide ribs protrude from a side surface of the second side plate away from the first side plate.

[0015] In some possible implementation schemes, the first guide rib is interference fit with the first fixing groove, and the second guide rib is interference fit with the second fixing groove.

[0016] In some possible implementations, the first guide rib may move relative to the first fixing groove along the arrangement direction of the first side plate and the second side plate to change the height of the first guide rib protruding from the surface of the first side plate facing the second side plate;

[0017] The second guide rib can move relative to the second fixing groove along the arrangement direction of the first side plate and the second side plate to change the height of the second guide rib protruding from the surface of the second side plate facing the first side plate.

[0018] In some possible embodiments, a first driving device and a second driving device are further included, wherein the first driving device is used to drive each of the first guide ribs to move synchronously along the arrangement direction of the first side plate and the second side plate, and the second driving device is used to drive each of the second guide ribs to move synchronously along the arrangement direction of the first side plate and the second side plate.

[0019] In some possible implementation schemes, the height H1 of the first guide rib protruding from the first side plate toward the second side plate satisfies: 0

[0020] The height H2 of the second guide rib protruding from the second side plate toward the first side plate satisfies: 0<H2<0.5H;

[0021] Wherein, H is the distance between the first side plate and the second side plate.

[0022] In some possible implementation schemes, flow meters are further included which are respectively arranged in the first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe.

[0023] In some possible implementation schemes, the system further includes temperature sensors respectively disposed in the first water inlet pipe, the second water inlet pipe, the first water outlet pipe, and the second water outlet pipe.

[0024] In a second aspect, the utility model provides a cooling system, comprising a first water pump, a second water pump and a water pump inlet pipe assembly as described in any possible implementation scheme in the first aspect, wherein the first water inlet pipe and the second water inlet pipe are respectively used to flow in cooling water of different temperatures, the first water pump is connected to the first water outlet pipe, and the second water pump is connected to the second water outlet pipe.

[0025] In a third aspect, the utility model provides an engine, comprising the cooling system as described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front view schematic diagram of a water pump water inlet pipe assembly in an embodiment of the utility model; ​

[0027] Figure 2 It is a front view schematic diagram of a water pump water inlet pipe assembly in an embodiment of the utility model without the first guide rib installed;

[0028] Figure 3 A schematic diagram of the back side of a water pump water inlet pipe assembly in an embodiment of the utility model;

[0029] Figure 4 It is a back schematic diagram of a water pump water inlet pipe assembly in an embodiment of the utility model without installing the second guide rib;

[0030] Figure 5 It is a side view of a water pump water inlet pipe assembly in an embodiment of the utility model.

[0031] In the figure:

[0032] 100 - first water inlet pipe; 200 - second water inlet pipe; 300 - junction; 310 - first side plate; 311 - first fixing groove; 320 - second side plate; 321 - second fixing groove; 330 - connecting plate; 400 - first water outlet pipe; 500 - second water outlet pipe; 600 - first guide rib; 700 - second guide rib. DETAILED DESCRIPTION

[0033] 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.

[0034] refer to Figures 1 to 5 The water pump water inlet pipe assembly in the embodiment of the utility model may include a first water inlet pipe 100, a second water inlet pipe 200, a confluence portion 300, a first water outlet pipe 400, a second water outlet pipe 500, at least one first guide rib 600 and at least one second guide rib 700, and 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 arranged opposite to each other, and the connecting plate 330 is connected 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 are surrounded to form a containing space, and the first water inlet pipe 100, the second water inlet pipe 200, the first water outlet pipe 400 and the second water outlet pipe 500 are all connected to the connecting plate 330 and communicate with the containing space. That is, the water flowing in from the first water inlet pipe 100 and the second water inlet pipe 200 flows through the confluence portion 300 and then flows to the first water outlet pipe 400 and the second water outlet pipe 500 .

[0035] like Figure 1 As shown, the water pump water inlet pipe assembly in this embodiment is applied to the water pipe before the pump. In order to facilitate the connection between the first water outlet pipe 400 and the second water outlet pipe 500 and the water pump, the first water inlet pipe 100 and the second water inlet pipe 200 can be located on the side away from the water pump, and the first water outlet pipe 400 and the second water outlet pipe 500 can be located on the side close to the water pump. In other words, the first water inlet pipe 100 and the second water inlet pipe 200 in this embodiment are designed in a non-diagonal position, and the first water outlet pipe 400 and the second water outlet pipe 500 are also designed in a non-diagonal position. In addition, the first water inlet pipe 100 and the second water outlet pipe 500 can be roughly regarded as a diagonal design, and the second water inlet pipe 200 and the first water outlet pipe 400 can be roughly regarded as a diagonal design.

[0036] Furthermore, the at least one first guide rib 600 in this embodiment may include one first guide rib 600, two first guide ribs 600, three first guide ribs 600, etc. Similarly, the at least one second guide rib 700 may include one second guide rib 700, two second guide ribs 700, three second guide ribs 700, etc. Specifically, in combination with Figure 2 , Figure 4 and Figure 5 The first guide rib 600 is arranged on the first side plate 310, and at least a portion of the first guide rib 600 protrudes from a side surface of the first side plate 310 facing the second side plate 320. The second guide rib 700 is arranged on the second side plate 320, and at least a portion of the second guide rib 700 protrudes from a side surface of the second side plate 320 facing the first side plate 310.

[0037] refer to Figure 1 or Figure 3 , assuming that the first plane is the plane where the first side plate 310 or the second side plate 320 is located, the extension direction of the orthographic projection of the first guide rib 600 on the first plane and the extension direction of the orthographic projection of the second guide rib 700 on the first plane are cross-arranged, so that the water flow entering the confluence portion 300 from the first water inlet pipe 100, under the cooperation of the first guide rib 600 and the second guide rib 700, a part of it flows to the first water outlet pipe 400, and the other part flows to the second water outlet pipe 500, and the water flow entering the confluence portion 300 from the second water inlet pipe 200, under the cooperation of the first guide rib 600 and the second guide rib 700, a part of it flows to the first water outlet pipe 400, and the other part flows to the second water outlet pipe 500.

[0038] It should be understood that the water pump inlet pipe assembly in the present embodiment can be applied to the cooling system of the engine. When the water inlet temperatures of the first water inlet pipe 100 and the second water inlet pipe 200 are different, assuming that the first water inlet pipe 100 contains high-temperature water and the second water inlet pipe 200 contains low-temperature water, and when the first guide rib 600 and the second guide rib 700 are not provided, the water in the first water inlet pipe 100 flows to the first water outlet pipe 400, and the water in the second water inlet pipe 200 flows to the second water outlet pipe 500, resulting in a high outlet water temperature of the first water outlet pipe 400 and a low outlet water temperature of the second water outlet pipe 500. When the first guide rib 600 and the second guide rib 700 are provided, a part of the high-temperature water in the first water inlet pipe 100 can flow to the second water outlet pipe 500, and a part of the low-temperature water in the second water inlet pipe 200 can flow to the first water outlet pipe 400, so that the first water outlet pipe 400 and the second water outlet pipe 500 respectively have mixed high-temperature water and low-temperature water, thereby reducing the outlet water temperature difference between the first water outlet pipe 400 and the second water outlet pipe 500, so that the outlet water temperatures of the first water outlet pipe 400 and the second water outlet pipe 500 are basically the same.

[0039] As mentioned above, the first guide rib 600 and the second guide rib 700 can be one, two, three, etc. respectively. When there is one first guide rib 600, the first guide rib 600 can be located at the center of the first side plate 310. When there is one second guide rib 700, the second guide rib 700 can also be located at the center of the second side plate 320. When there are two first guide ribs 600, the two first guide ribs 600 can be symmetrically arranged, for example, with the center line of the first side plate 310 as the axis of symmetry. When there are two second guide ribs 700, the two second guide ribs 700 can be symmetrically arranged, for example, with the center line of the second side plate 320 as the axis of symmetry. In addition, when there are two or more first guide ribs 600, each first guide rib 600 is parallel to each other, and any two adjacent first guide ribs 600 are arranged at intervals. When there are two or more second guiding ribs 700 , the second guiding ribs 700 are parallel to each other, and any two adjacent second guiding ribs 700 are spaced apart.

[0040] Combination Figure 1 and Figure 3, taking the example of two first guide ribs 600 and two second guide ribs 700, the extension direction of the first guide rib 600 is consistent with the water flow direction in the first water inlet pipe 100, and the extension direction of the second guide rib 700 is consistent with the water flow direction in the second water inlet pipe 200. A channel a is formed between the two first guide ribs 600, and the extension direction is consistent with the extension direction of the first guide rib 600. The channel a can be used to guide the water in the first water inlet pipe 100 to the second water outlet pipe 500. A channel b is formed between the two second guide ribs 700, and the extension direction is consistent with the extension direction of the second guide rib 700. The channel b can be used to guide the water in the second water inlet pipe 200 to the first water outlet pipe 400, thereby increasing the mixed water flow in the first water outlet pipe 400 and the second water outlet pipe 500, and reducing the outlet water temperature difference between the first water outlet pipe 400 and the second water outlet pipe 500.

[0041] In this embodiment, the amount of water diverted in the first water inlet pipe 100 and the second water inlet pipe 200 can be adjusted by adjusting the heights of channel a and channel b. It can be understood that when the height of channel a is higher, more water in the first water inlet pipe 100 can enter the second water outlet pipe 500 through channel a, and when the height of channel b is higher, more water in the second water inlet pipe 200 can enter the first water outlet pipe 400 through channel b.

[0042] Specifically, as an optional implementation scheme, Figure 2 and Figure 4 As shown, the first side plate 310 may be provided with first fixing grooves 311 corresponding to each first guide rib 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 a side surface of the first side plate 310 away from the second side plate 320. The second side plate 320 may be provided with second fixing grooves 321 corresponding to each second guide rib 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 a side surface of the second side plate 320 away from the first side plate 310.

[0043] 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 the channel a, and further changing the temperature of the mixed water in the first water outlet pipe 400 and the second water 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 the channel b, and further changing the temperature of the mixed water in the first water outlet pipe 400 and the second water outlet pipe 500.

[0044] When adjusting the relative position between the first guide rib 600 and the first fixed groove 311, it 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 surface of the first side plate 310 away from the second side plate 320), for example, it can be adjusted manually or driven by a driving device. Similarly, when adjusting the relative position between the second guide rib 700 and the first fixed groove 311, it can be achieved by contacting the surface of the second guide rib 700 protruding from the surface of the second side plate 320 away from the first side plate 310.

[0045] In addition, the first guide rib 600 is in interference fit with the first fixed groove 311, and the second guide rib 700 is in interference fit with the second fixed groove 321. It should be noted that, taking the first guide rib 600 and the first fixed groove 311 as an example, the interference fit between the first guide rib 600 and the first fixed groove 311 can be understood as that when a part of the first guide rib 600 is located in the first fixed groove 311, when there is no 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 fixed groove 311 can remain relatively fixed, and when there is interference from an external force, the first guide rib 600 can move relative to the first fixed 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 can be kept fixed, thereby ensuring that the outlet water temperature of the first outlet pipe 400 and the second outlet pipe 500 is stable.

[0046] As an optional implementation scheme, the water pump water 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 first guide rib 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 second guide rib 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 first guide rib 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 second guide rib 700 protruding from the surface of the second side plate 320 facing the first side plate 310 can also be the same.

[0047] Furthermore, the water pump water inlet pipe assembly in the present embodiment may further include flow meters respectively disposed in the first water inlet pipe 100, the second water inlet pipe 200, the first water outlet pipe 400 and the second water outlet pipe 500, and the flow meters in each water pipe may be respectively used to measure the flow in the first water inlet pipe 100, the second water inlet pipe 200, the first water outlet pipe 400 and the second water outlet pipe 500. The water pump water inlet pipe assembly may further include temperature sensors respectively disposed in the first water inlet pipe 100, the second water inlet pipe 200, the first water outlet pipe 400 and the second water outlet pipe 500, and each thermometer may be respectively used to detect the water temperature in the first water inlet pipe 100, the second water inlet pipe 200, the first water outlet pipe 400 and the second water outlet pipe 500. On this basis, a control unit can also be set up and a control strategy can be formulated. For example, the control unit can control the operation of the first driving device and the second driving device according to the flow and temperature in the first water inlet pipe 100, the second water inlet pipe 200, 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 and temperature in the first water inlet pipe 100 and the second water inlet pipe 200 are different, the outlet water temperature is consistent when flowing out of the first water outlet pipe 400 and the second water outlet pipe 500.

[0048] In this embodiment, assuming that the spacing 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

[0049] ​Based on the same design concept, the embodiment of the utility model can also provide a cooling system, which can include a first water pump, a second water pump and a water pump inlet pipe assembly as mentioned in the above embodiment, wherein the outlet of the first water outlet pipe 400 can be connected to the first water pump, and the outlet of the second water outlet pipe 500 can be connected to the second water pump. The first water inlet pipe 100 and the second water inlet pipe 200 can flow into cooling water of different temperatures respectively. Under the cooperation of the first guide rib 600 and the second guide rib 700 at the confluence 300, part of the cooling water of the first water inlet pipe 100 and part of the cooling water of the second water inlet pipe 200 flow into the first water outlet pipe 400, and part of the cooling water of the second water inlet pipe 200 and part of the cooling water of the second water inlet pipe 200 enter the second water outlet pipe 500. The cooling water in the two water outlet pipes is the cooling water mixed with high and low temperatures, so that the temperature of the cooling water flowing into the first water pump and the second water pump can be consistent. A good cooling effect of the cooling system is ensured.

[0050] Based on the same design concept, the embodiment of the utility model can also provide an engine, which can include the cooling system in the above embodiment. Since the above cooling system has a good cooling effect, the good performance of the engine is guaranteed. When applied, the above engine can be, for example, a marine diesel engine.

[0051] Obviously, those skilled in the art can make various changes and modifications to the embodiments of 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 water pump inlet pipe assembly, applied to an engine cooling system, characterized in that: The water pump water inlet pipe assembly comprises a first water inlet pipe, a second water inlet pipe, a junction, a first water outlet pipe, a second water outlet pipe, at least one first guide rib and at least one second guide rib; The confluence portion includes a first side plate and a second side plate that are arranged opposite to each other, and a connecting plate connected between the first side plate and the second side plate, and the first side plate, the second side plate and the connecting plate are surrounded to form an accommodating space; The first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe are respectively connected to the connecting plate and are respectively communicated with the accommodating space; The at least one first guide rib is provided on the first side plate, and at least a portion of the first guide rib protrudes from a side surface of the first side plate facing the second side plate; the at least one second guide rib is provided on the second side plate, and at least a portion of the second guide rib protrudes from a side surface of the second side plate facing the first side plate; An extension direction of the orthographic projection of the first guide rib on the first plane is cross-arranged with an extension direction of the orthographic projection of the second guide rib on the first plane, so that a portion of the water flow entering the confluence through the first water inlet pipe flows to the first water outlet pipe, and another portion flows to the second water outlet pipe, and a portion of the water flow entering the confluence through the second water inlet pipe flows to the first water outlet pipe, and another portion flows to the second water outlet pipe, wherein the first plane is the plane where the first side panel or the second side panel is located.

2. The water pump inlet pipe assembly according to claim 1, characterized in that: When there are two or more first guiding ribs, the first guiding ribs are parallel to each other, and any two adjacent first guiding ribs are spaced apart from each other; When there are two or more second guide ribs, the second guide ribs are parallel to each other, and any two adjacent second guide ribs are spaced apart.

3. The water pump inlet pipe assembly according to claim 2, characterized in that: The extending direction of the first guide rib is consistent with the water flow direction in the first water inlet pipe, and the extending direction of the second guide rib is consistent with the water flow direction in the second water inlet pipe.

4. The water pump inlet pipe assembly according to claim 1, characterized in that: The first side plate is provided with first fixing grooves corresponding to the first guide ribs one by one, and the first guide ribs are respectively installed in the corresponding first fixing grooves, and at least a part of the first guide ribs protrudes from a side surface of the first side plate away from the second side plate; The second side plate is provided with second fixing grooves corresponding to the second guide ribs one by one, and the second guide ribs are respectively installed in the corresponding second fixing grooves, and at least a part of the second guide ribs protrude from a side surface of the second side plate away from the first side plate.

5. The water pump inlet pipe assembly according to claim 4, characterized in that: The first guide rib is interference fit with the first fixing groove, and the second guide rib is interference fit with the second fixing groove.

6. The water pump inlet pipe assembly according to claim 4, characterized in that: The first guide rib can move relative to the first fixing groove along the arrangement direction of the first side plate and the second side plate to change the height of the first guide rib protruding from the surface of the first side plate facing the second side plate; The second guide rib can move relative to the second fixing groove along the arrangement direction of the first side plate and the second side plate to change the height of the second guide rib protruding from the surface of the second side plate facing the first side plate.

7. The water pump inlet pipe assembly according to claim 6, characterized in that: It also includes a first driving device and a second driving device, the first driving device is used to drive each of the first guide ribs to move synchronously along the arrangement direction of the first side plate and the second side plate, and the second driving device is used to drive each of the second guide ribs to move synchronously along the arrangement direction of the first side plate and the second side plate.

8. The water pump inlet pipe assembly according to claim 6, 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; Wherein, H is the distance between the first side plate and the second side plate.

9. The water pump inlet pipe assembly according to claim 1, characterized in that: It also includes flow meters respectively arranged in the first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe.

10. The water pump inlet pipe assembly according to claim 1, characterized in that: It also includes temperature sensors respectively arranged in the first water inlet pipe, the second water inlet pipe, the first water outlet pipe and the second water outlet pipe.

11. A cooling system, characterized in that: It comprises a first water pump, a second water pump and a water pump inlet pipe assembly as described in any one of claims 1 to 10, wherein the first water inlet pipe and the second water inlet pipe are respectively used to flow in cooling water of different temperatures, the first water pump is connected to the first water outlet pipe, and the second water pump is connected to the second water outlet pipe.

12. An engine, characterized in that: Comprising the cooling system of claim 11.

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