Water pump cavity conforming to flow direction of cooling water

Abstract

The utility model discloses a water pump cavity conforming to the flow direction of cooling water, and relates to the technical field of gas engine cooling, a water pump seat comprises an internal vortex cavity, a water inlet of the internal vortex cavity is connected with a water tank water pipe through a flange, and a water outlet of the internal vortex cavity is communicated with an engine body water jacket through an EPDM (Ethylene-Propylene-Diene Monomer) sealing ring with a polygonal section. A fluid flow channel is designed in a spiral mode, the cross sectional area is gradually reduced from a water inlet to a water outlet, the inner wall of the flow channel is of a streamline wing section structure, the water flow speed is adjusted in combination with the gradual change sectional area, water flow is guided to stably flow along a spiral path through centrifugal force, and generation of turbulent flow and vortex is effectively reduced. The radial reinforcing ribs are arranged inside to improve the structural rigidity, stable assembly is achieved through the five M10 machine body mounting holes and the six M6 water pump mounting holes, the square sealing ring is attached through the polygonal edges to enhance the sealing performance, and dynamic pressure changes are adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of gas engine cooling, and specifically relates to a water pump cavity that conforms to the cooling water flow direction. Background Technique

[0002] The water pump seat is a key supporting component in the cooling system. It is mainly used to fix the water pump body, connect the cooling water inlet / outlet pipelines, and guide the water flow to flow in the cavity to achieve heat exchange. In the prior art, the water pump seat is usually made of metal or plastic materials, and its internal cavity is a simple straight-line type or regular geometric shape flow channel. Its main functions are to mechanically fix the water pump and provide pipeline interfaces.

[0003] The existing water pump seats have the following significant defects: First, the straight-line flow channel and fixed cross-sectional area design are prone to form areas with sudden changes in water flow direction or sudden changes in cross-sectional area inside the water pump seat, causing turbulence and eddy currents, and reducing the uniformity of cooling water flow velocity and heat exchange efficiency; Second, the sealing structure mostly uses circular cross-section sealing rings, which are prone to seal failure due to local stress concentration under dynamic pressure and vibration conditions, and then cause leakage; Third, the material selection and structural design do not fully consider the anti-vibration requirements, and are prone to fatigue cracking due to resonance during long-term operation, affecting the reliability of the system. These problems seriously restrict the performance of the cooling system and the service life of the equipment.

[0004] Therefore, we propose a water pump cavity that conforms to the cooling water flow direction. Content of the Utility Model

[0005] The purpose of the utility model is to provide a water pump cavity that conforms to the cooling water flow direction to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A water pump cavity that conforms to the cooling water flow direction, including a water pump seat with a cavity formed inside. The internal cavity of the water pump seat is a vortex cavity. One side of the vortex cavity is provided with a water pump inlet, and the other side is an outlet. Among them, a water pipe connected to the water tank is hermetically installed on the water pump inlet through a flange, and the outlet is connected to the engine body water jacket through a sealing ring. The fluid flow channel is arranged in a spiral shape along the direction from the water pump inlet to the outlet.

[0007] As a further description of the above technical solution: The cross-sectional width of the fluid flow channel gradually decreases along the direction from the water pump inlet to the outlet, and the surface of the inner side wall of the fluid flow channel is of a streamline structure.

[0008] As a further description of the above technical solution: The water pump seat is provided with an engine body mounting hole, and the water pump seat is mounted on the engine body surface through the engine body mounting hole.

[0009] As a further description of the above technical solution: The front view of the sealing ring is square, and the cross-section of the sealing ring is a polygonal structure.

[0010] As a further description of the above technical solution: The surface of the water pump base is also provided with a water pump installation hole for installing the water pump body.

[0011] As a further description of the above technical solution: The water pump base is made of ADC12 die-cast aluminum alloy material.

[0012] In the above technical solution, a water pump cavity that conforms to the cooling water flow direction provided by the present utility model has the following beneficial effects:

[0013] The overall fluid flow channel is arranged in a spiral shape. This design uses centrifugal force to guide the water flow to rotate and advance stably along the inner wall of the cavity, avoiding the turbulence and eddy currents caused by sudden direction changes in traditional straight flow channels, thereby improving the flow efficiency of the cooling water. And along the direction from the water pump inlet to the outlet, the cross-sectional width of the fluid flow channel gradually decreases. This design helps to dynamically adjust the water flow speed, enabling the water flow to gradually accelerate when passing through the water pump, maximizing the contact efficiency between the cooling medium and the high-temperature areas of the water pump and the engine.

[0014] A square sealing ring (with a polygonal cross-section structure) is used to achieve efficient sealing with the engine block water jacket. This design increases the fitting area with the cavity and the water jacket interface through the multi-sided angular contact surface. Compared with traditional circular sealing rings, it can form a more uniform distributed sealing pressure under the same compression rate, significantly reducing the risk of local stress concentration caused by vibration or thermal expansion and contraction. And the edges of the polygonal cross-section generate self-adaptive deformation when compressed, which can fill the small gaps formed due to processing errors or assembly offsets, effectively blocking the leakage path of the cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model.

[0016] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present utility model;

[0017] Figure 2 Provided by the embodiment of the present utility model Figure 1 The schematic diagram of the structure of the A-A section;

[0018] Figure 3 It is a schematic diagram of the structure of the overall right view provided by the embodiment of the present utility model;

[0019] Figure 4The embodiment of the utility model provides Figure 3 The structural diagram of E-E in the figure;

[0020] Figure 5 This is a schematic structural diagram of an overall left view provided for an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Water pump seat; 2. Water pump mounting hole; 3. Vortex cavity; 4. Water pump water inlet; 5. Fluid flow channel; 6. Water outlet; 7. Sealing ring; 8. Cross section; 9. Body mounting hole. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] See also Figures 1-5 , the utility model embodiment provides a technical solution: a water pump cavity that conforms to the flow direction of cooling water, including a water pump seat 1 with a cavity formed inside, the cavity inside the water pump seat 1 is a vortex cavity 3, a water pump water inlet 4 is arranged on one side of the vortex cavity 3, and a water outlet 6 is arranged on the other side, wherein a water pipe connected to a water tank is arranged on the water pump water inlet 4 through a flange seal, and the water outlet 6 is connected to the water jacket of the body through a sealing ring 7, and a fluid flow channel 5 is arranged along the direction from the water pump water inlet 4 to the water outlet 6, and the fluid flow channel 5 is arranged in a spiral shape as a whole, and the cross-sectional width of the fluid flow channel 5 in the direction from the water pump water inlet 4 to the water outlet 6 gradually decreases, and the surface of the inner wall of the fluid flow channel 5 is a streamlined structure;

[0025] It should be noted here that the internal cavity of the water pump seat 1 adopts a vortex cavity 3 structure, the water inlet is connected to the water pipe of the water tank through a flange seal, and the water outlet 6 is connected to the water jacket of the body through an EPDM sealing ring 7 to form a closed-loop cooling cycle. The fluid flow channel 5 extends continuously in a spiral shape from the water inlet to the water outlet 6, and uses centrifugal force to guide the water flow to rotate steadily along the inner wall of the cavity to avoid turbulence and eddy currents caused by sudden changes in direction in traditional straight flow channels; the inner wall of the flow channel is further streamlined, similar to the wing profile design, combined with the gradual change in the cross-sectional area of ​​the spiral path (the cross-sectional area of ​​the water pump inlet 4 is increased to evenly distribute the water flow, and the cross-sectional area of ​​the water outlet 6 is reduced to accelerate the discharge), so as to realize the dynamic adjustment of the water flow speed and maximize the contact efficiency between the cooling medium and the water pump and the high-temperature area of ​​the engine;

[0026] The water pump seat 1 is made of ADC12 die-cast aluminum alloy, with radial reinforcement ribs added inside to improve the structural rigidity, ensuring that the risk of resonance is avoided when the water pump is subjected to dynamic loads and high-frequency vibrations;

[0027] In terms of the installation layout, the engine mounting holes 9 are provided on the water pump base 1, and the water pump base 1 is installed on the surface of the engine block through the engine mounting holes 9. Moreover, the water pump mounting holes 2 are also formed on the surface of the water pump base 1, and the water pump mounting holes 2 are used for installing the water pump body. In one of the embodiments, 5 M10 engine fixing holes, 6 M6 water pump fixing holes and a three-hole flange water inlet pipe connection structure can be configured, leaving a maintenance operation space for quick disassembly and sealing maintenance;

[0028] It should also be noted that the front view of the sealing ring 7 connected to the engine block water jacket is square, and the cross-section 8 of the sealing ring 7 is a polygon structure. The square sealing ring 7 (the cross-section 8 is a polygon structure, such as a trapezoid or a hexagon) is used to achieve efficient sealing with the engine block water jacket. The sealing ring 7 is customized and formed with EPDM material. The design of its polygon cross-section 8 increases the fitting area with the cavity and the water jacket interface through the multi-sided edge contact surface. Compared with the traditional circular sealing ring 7, a more uniform distributed sealing pressure can be formed under the same compression rate, significantly reducing the risk of local stress concentration caused by vibration or thermal expansion and contraction; at the same time, the edges of the polygon cross-section generate self-adaptive deformation when compressed, which can fill the micro gaps formed by machining errors or assembly offsets, effectively blocking the leakage path of the cooling water. The sealing ring 7 is installed at the connection between the water outlet 6 and the engine block water jacket, and its geometric characteristics match the dynamic pressure change of the water flow in the spiral flow channel: when the water flow accelerates through the tapered section, the polygon sealing structure absorbs the pressure fluctuation through the elastic deformation of the edges to maintain the sealing stability.

[0029] Only some exemplary embodiments of the present invention have been described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A water pump cavity conforming to the flow direction of cooling water, comprising a water pump seat (1) having a cavity formed therein, characterized in that: The internal cavity of the water pump seat (1) is a vortex cavity (3), one side of the vortex cavity (3) is provided with a water pump water inlet (4), and the other side is a water outlet (6), wherein a water pipe connected to a water tank is provided on the water pump water inlet (4) through a flange seal, and the water outlet (6) is connected to the water jacket of the machine body through a sealing ring (7), and a fluid flow channel (5) is provided along the direction from the water pump water inlet (4) to the water outlet (6), and the fluid flow channel (5) is arranged in a spiral shape as a whole.

2. A water pump cavity conforming to the cooling water flow direction according to claim 1, characterized in that: The cross-sectional width of the fluid flow channel (5) along the direction from the water inlet (4) to the water outlet (6) of the water pump gradually decreases, and the surface of the inner wall of the fluid flow channel (5) is a streamlined structure.

3. A water pump cavity conforming to the cooling water flow direction according to claim 1, characterized in that: The water pump seat (1) is provided with a body mounting hole (9), and the water pump seat (1) is mounted on the surface of the engine body through the body mounting hole (9).

4. A water pump cavity conforming to the cooling water flow direction according to claim 2, characterized in that: The front view of the sealing ring (7) is in a square configuration, and the cross section (8) of the sealing ring (7) is in a polygonal configuration.

5. A water pump cavity conforming to the cooling water flow direction according to claim 1, characterized in that: A water pump mounting hole (2) is also provided on the surface of the water pump seat (1), and the water pump mounting hole (2) is used for mounting the water pump body.

6. A water pump cavity conforming to the cooling water flow direction according to claim 1, characterized in that: The water pump seat (1) is made of ADC12 die-cast aluminum alloy material.

Images