Cooling device for pump shell casting

Abstract

The invention discloses a cooling device for pump shell casting, and relates to the technical field of pump shell casting, the cooling device comprises a cooling box, a first connecting pipe penetrates through the outer side surface of the cooling box, the end part of the first connecting pipe is fixedly connected with a bottom box, and a heat dissipation mechanism penetrates through the upper surface of the bottom box; the heat dissipation mechanism is used for cooling a cooling liquid in an inner cavity of the cooling box, the heat dissipation mechanism comprises a connecting shell, the connecting shell penetrates through the upper surface of the bottom box, a cooling pipe penetrates through the upper surface of the connecting shell, and a threaded pipe is fixedly connected to the inner wall of the cooling pipe; a stirring mechanism is arranged on the upper surface of the connecting shell and used for increasing the heat dissipation rate of the heat dissipation mechanism. And a drainage mechanism is arranged on the inner wall of the cooling box, the drainage mechanism is used for refilling the cooled cooling liquid into an inner cavity of the cooling box, the cooling liquid can be filled into the cooling box by arranging the cooling box, and the effect of fully cooling the pump shell is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of pump housing casting, and particularly to a cooling device for pump housing casting. Background Art

[0002] As a core component of fluid machinery, the manufacturing quality of the pump housing directly affects the working efficiency and service life of the pump unit. The pump housing is usually cast from materials such as HT250 gray cast iron, QT450-10 ductile iron, or ZG230-450 cast steel. Corrosion-resistant materials such as duplex stainless steel can be selected under special working conditions. The process parameters during casting, including pouring temperature, cooling rate, etc., need to be strictly controlled to avoid casting defects such as porosity and shrinkage porosity. In terms of structural design, the pump housing needs to meet the requirements of fluid dynamics. The flow path profile should have a smooth transition to reduce hydraulic losses, and at the same time, sufficient strength and stiffness should be ensured to withstand the working pressure. During the machining process, the accuracy of the installation and mating surface of the pump housing needs to reach IT7 level, and the surface roughness of the sealing surface is controlled below Ra3.2. Pump housing casting is a key process in fluid machinery manufacturing, and its quality directly affects the sealing performance, pressure resistance, and service life of the pump body. During casting, cast iron materials such as HT250 and QT450-10 or ZG230-450 cast steel are usually selected. Duplex stainless steel can be used under special working conditions. The materials need to comply with standards such as GB / T 9439 or ASTM A48, and the chemical composition and mechanical properties must be detected by spectroscopy to ensure that the material meets the standards. Resin sand or lost foam precision casting is mostly used in the process. A machining allowance of 3-5 mm needs to be reserved for the flow path part. The mold design needs to comprehensively consider the shrinkage rate (1.0% - 1.5% for cast iron, 2.0% - 2.5% for cast steel), and the filling process is simulated with the Flow-3D software to avoid casting defects such as porosity and cold shut.

[0003] During the pump housing casting process, if the cooling is insufficient, a series of quality defects will be generated inside the casting, seriously affecting the use performance and service life of the product. Insufficient cooling will cause a coarse grain structure to form inside the casting, reducing the mechanical strength of the material, and at the same time generating large residual stresses, which are likely to cause deformation or even cracking during subsequent machining or use. Due to the uneven cooling rate, shrinkage cavities and shrinkage porosity are likely to appear in the thick-walled parts of the casting. These internal defects not only weaken the pressure-bearing capacity of the pump housing but may also become stress concentration points and gradually expand into cracks under the action of alternating loads. Summary of the Invention

[0004] To achieve the above object, the present invention is realized through the following technical solutions: A cooling device for pump housing casting, including a cooling box. A first connecting pipe penetrates through the outer side surface of the cooling box, and the end of the first connecting pipe is fixedly connected to a bottom box. A heat dissipation mechanism penetrates through the upper surface of the bottom box, and this heat dissipation mechanism is used to cool the coolant in the inner cavity of the cooling box. The heat dissipation mechanism includes a connecting shell, the connecting shell penetrates through the upper surface of the bottom box, a cooling pipe penetrates through the upper surface of the connecting shell, and a threaded pipe is fixedly connected to the inner wall of the cooling pipe; A stirring mechanism is arranged on the upper surface of the connecting shell, and this stirring mechanism is used to accelerate the heat dissipation rate of the heat dissipation mechanism; A drainage mechanism is arranged on the inner wall of the cooling box, and this drainage mechanism is used to refill the cooled coolant into the inner cavity of the cooling box. By setting the cooling box, coolant can be filled inside, and then the pump housing to be cooled can be placed, so as to realize the cooling work of the pump housing. By setting the first connecting pipe, the cooling box can be connected to the bottom box, so that the coolant in the inner cavity of the cooling box can flow into the inner cavity of the bottom box through the first connecting pipe. By setting the heat dissipation mechanism, the high-temperature coolant can be cooled, so that when the pump housing is cooled subsequently, the coolant can always maintain a low temperature state, and thus the cooling work of the pump housing can be completed. By setting the cooling pipe and the threaded pipe, the contact area between the coolant and the air can be made larger, so as to accelerate the heat dissipation effect of the coolant. By setting the stirring mechanism, the flow of air can be generated on the outer surface of the heat dissipation mechanism, so that the heat on the outer surface of the heat dissipation mechanism can be quickly dissipated, and at the same time, an upward stirring force can be generated to make the coolant at the bottom of the connecting shell flow upward. By setting the drainage mechanism, the coolant cooled by the heat dissipation mechanism can be filled into the inner cavity of the cooling box, and then the coolant can flow to the outer surface of the pump housing.

[0005] Preferably, a barrier ring is fixedly connected to the inner wall of the cooling box, a placement box is movably connected to the upper surface of the barrier ring, a permeable frame is fixedly connected to the bottom surface of the inner cavity of the placement box, and a handle is fixedly connected to the inner wall of the placement box. By setting the barrier ring, the placement box can be blocked, so that the placement box can be supported on the upper surface of the barrier ring. By setting the placement box and the permeable frame, the pump housing to be cooled can be placed, and the coolant can flow to the outer surface of the pump housing through the permeable frame. By setting the handle, it is convenient to move the placement box.

[0006] Preferably, spiral grooves are formed on the outer surface of the threaded pipe, and the threaded pipe is a hollow metal pipe. The number of the cooling pipes is three, and the three cooling pipes are evenly distributed on the upper surface of the connecting shell, and the cooling pipes are made of metal material. By setting the threaded pipe, there are multiple spiral grooves on its outer surface, which can be in contact with the cooling pipe, so that the contact area between the coolant entering the inner cavity of the cooling pipe and the air can become larger. By setting three cooling pipes, the heat dissipation rate of the coolant can be increased.

[0007] Preferably, a first water-permeable plate is fixedly connected to the inner wall of the cooling pipe. A communicating pipe is fixedly connected to the inner wall of the first water-permeable plate. The communicating pipe is located in the inner cavity of the connecting shell. The top end of the communicating pipe is fixedly connected to the bottom end of the threaded pipe. The three threaded pipes are connected together by this communicating pipe. By providing the first water-permeable plate, the coolant in the inner cavity of the cooling pipe can be circulated. By providing the communicating pipe, the spaces in the inner cavities of the three threaded pipes can be connected together, so that the heat in the cooling pipe can be connected through the communicating pipe and discharged from the top.

[0008] Preferably, a heat dissipation groove is fixedly connected to the outer surface of the cooling pipe. The number of the heat dissipation grooves is several, and the several heat dissipation grooves are evenly distributed on the outer surface of the cooling pipe. The heat dissipation groove is made of metal. A second water-permeable plate is fixedly connected to the inner wall of the cooling pipe. An exhaust pipe is fixedly connected to the inner wall of the second water-permeable plate. The bottom end of the exhaust pipe is fixedly connected to the top end of the threaded pipe. By providing the heat dissipation groove, it is convenient to dissipate the heat on the outer surface of the cooling pipe, so that the heat on the outer surface of the cooling pipe can be transferred into the inner cavity of the heat dissipation groove and then the heat is dissipated. By providing the second water-permeable plate, the coolant in the inner cavity of the cooling pipe can flow into the top. By providing the exhaust pipe, the air in the inner cavity of the threaded pipe can be discharged through the exhaust pipe.

[0009] Preferably, the stirring mechanism includes a fixed frame. The fixed frame is fixedly connected to the upper surface of the connecting shell. A stepping motor is fixedly connected to the top end of the fixed frame. The output end of the stepping motor is installed with a rotating rod through a coupling. Stirring plates are fixedly connected to the outer surface of the rotating rod. By providing the stepping motor, after the power supply is connected and the switch is turned on, the rotating rod can rotate, and then the stirring plates can rotate. Finally, when the stirring plates rotate, air flow can be generated on the outer surface of the heat dissipation groove, thereby accelerating the dissipation of the heat on the outer surface of the heat dissipation groove.

[0010] Preferably, a rotating block is fixedly connected to the top end of the rotating rod. Blades are fixedly connected to the upper surface of the rotating block. By providing the rotating block and the blades, under the rotation of the rotating rod, the blades can produce an upward flowing effect, thereby making the coolant flow upward.

[0011] Preferably, the drainage mechanism includes a top box. The top box is fixedly connected to the top end of the cooling pipe. The exhaust pipe penetrates through the top box and extends to the upper surface of the top box. The rotating block is rotatably connected to the inner wall of the top box. The blades are located in the inner cavity of the top box. By providing the top box, it can be connected to the cooling pipe, so that when the blades rotate, the coolant in the inner cavity of the top box can flow.

[0012] Preferably, a second connecting pipe penetrates through the outer side surface of the top box. The second connecting pipe penetrates through the cooling box. A drain ring is fixedly connected to the end of the second connecting pipe. A water spraying port penetrates through the inner ring of the drain ring. The number of the water spraying ports is several, and several water spraying ports are evenly distributed. By arranging the drain ring, it can be connected with the second connecting pipe, so that the coolant in the inner cavity of the top box can be poured into the inner cavity of the drain ring, and finally sprayed out from the water spraying ports and flow into the inner cavity of the cooling box.

[0013] The present invention provides a cooling device for pump housing casting, which has the following beneficial effects:

[0014] First, for the cooling device for pump housing casting, by arranging the cooling box, coolant can be filled inside, and then the pump housing to be cooled can be placed, so as to realize the cooling work of the pump housing. By arranging the first connecting pipe, the cooling box can be connected with the bottom box, so that the coolant in the inner cavity of the cooling box can flow into the inner cavity of the bottom box through the first connecting pipe.

[0015] Second, for the cooling device for pump housing casting, by arranging the heat dissipation mechanism, the coolant with high temperature can be cooled down, so that when the pump housing is cooled subsequently, the coolant can always maintain a low temperature state, and then the cooling work of the pump housing can be completed. By arranging the cooling pipe and the threaded pipe, the contact area between the coolant and the air can be larger, so as to accelerate the heat dissipation effect of the coolant.

[0016] Third, for the cooling device for pump housing casting, by arranging the stirring mechanism, air flow can be generated on the outer surface of the heat dissipation mechanism, so that the heat on the outer surface of the heat dissipation mechanism can be quickly dissipated, and at the same time, an upward stirring force can be generated, so that the coolant at the bottom of the connecting shell can flow upward.

[0017] Fourth, for the cooling device for pump housing casting, by arranging the drainage mechanism, the drainage mechanism can re - convey the cooling medium fully cooled by the heat dissipation mechanism back to the inner cavity of the cooling box. Through the optimized design of the return channel and the diversion device, it is ensured that the coolant can smoothly and efficiently return to the cooling box and be evenly distributed on the outer surface of the pump housing under the action of the circulation pump or gravity. This closed - loop circulation design not only realizes the continuous recycling of the coolant, but also can adjust the cooling intensity by controlling the return speed, so that each part of the pump housing can obtain a uniform cooling effect.

[0018] Fifth, for the cooling device for pump housing casting, by arranging the threaded pipe, there are multiple spiral grooves on its outer surface, which can be in contact with the cooling pipe, so that the contact area between the coolant entering the inner cavity of the cooling pipe and the air becomes larger. By arranging three cooling pipes, the heat dissipation rate of the coolant can be increased. Description of the Drawings

[0019] Figure 1 Schematic diagram of the external structure of a cooling device for casting a pump casing according to the present invention;

[0020] Figure 2 Side view of the structure of a cooling device for casting a pump casing according to the present invention;

[0021] Figure 3 Schematic diagram of the sectional structure of a cooling device for casting a pump casing according to the present invention;

[0022] Figure 4 Schematic diagram of the heat dissipation mechanism according to the present invention;

[0023] Figure 5 Schematic diagram of the partial structure of the heat dissipation mechanism according to the present invention;

[0024] Figure 6 Schematic diagram of the sectional structure of the heat dissipation mechanism according to the present invention;

[0025] Figure 7 Schematic diagram of the partial sectional structure of the heat dissipation mechanism according to the present invention;

[0026] Figure 8 Schematic diagram of the stirring mechanism according to the present invention;

[0027] Figure 9 Schematic diagram of the drainage mechanism according to the present invention.

[0028] In the figure: 1, cooling box; 2, first connecting pipe; 3, bottom box; 4, heat dissipation mechanism; 5, stirring mechanism; 6, drainage mechanism; 7, barrier ring; 8, placement box; 9, permeable frame; 10, handle; 41, connecting shell; 42, cooling pipe; 43, heat dissipation groove; 44, first permeable plate; 45, threaded pipe; 46, second permeable plate; 47, exhaust pipe; 48, connecting pipe; 51, fixing frame; 52, stepping motor; 53, rotating rod; 54, stirring plate; 55, rotating block; 56, blade; 61, top box; 62, second connecting pipe; 63, drainage ring; 64, water spraying port. Detailed implementation manners

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0030] As Figure 1 - Figure 9As shown in the figure, the present invention provides a technical solution: a cooling device for pump housing casting, including a cooling box 1. A first connecting pipe 2 penetrates through the outer side surface of the cooling box 1. The end of the first connecting pipe 2 is fixedly connected to a bottom box 3. A heat dissipation mechanism 4 penetrates through the upper surface of the bottom box 3. The heat dissipation mechanism 4 is used to cool the coolant in the inner cavity of the cooling box 1. The heat dissipation mechanism 4 includes a connecting shell 41. The connecting shell 41 penetrates through the upper surface of the bottom box 3. A cooling pipe 42 penetrates through the upper surface of the connecting shell 41. A threaded pipe 45 is fixedly connected to the inner wall of the cooling pipe 42; a stirring mechanism 5 is arranged on the upper surface of the connecting shell 41. The stirring mechanism 5 is used to accelerate the heat dissipation rate of the heat dissipation mechanism 4; a drainage mechanism 6 is arranged on the inner wall of the cooling box 1. The drainage mechanism 6 is used to refill the cooled coolant into the inner cavity of the cooling box 1. By arranging the cooling box 1, coolant can be filled inside, and then the pump housing to be cooled can be placed, so as to realize the cooling work of the pump housing. By arranging the first connecting pipe 2, the cooling box 1 can be connected to the bottom box 3, so that the coolant in the inner cavity of the cooling box 1 can flow into the inner cavity of the bottom box 3 through the first connecting pipe 2. By arranging the heat dissipation mechanism 4, the high-temperature coolant can be cooled, so that when the pump housing is cooled subsequently, the coolant can always maintain a low temperature state, and thus the cooling work of the pump housing can be completed. By arranging the cooling pipe 42 and the threaded pipe 45, the contact area between the coolant and the air can be made larger, so as to accelerate the heat dissipation effect of the coolant. By arranging the stirring mechanism 5, air flow can be generated on the outer surface of the heat dissipation mechanism 4, so that the heat on the outer surface of the heat dissipation mechanism 4 can be quickly dissipated, and at the same time, an upward stirring force can be generated, so that the coolant at the bottom of the connecting shell 41 can flow upward. By arranging the drainage mechanism 6, the coolant cooled by the heat dissipation mechanism 4 can be filled into the inner cavity of the cooling box 1, and then the coolant can flow to the outer surface of the pump housing.

[0031] A barrier ring 7 is fixedly connected to the inner wall of the cooling box 1. A placement box 8 is movably connected to the upper surface of the barrier ring 7. A water-permeable frame 9 is fixedly connected to the bottom surface of the inner cavity of the placement box 8. A handle 10 is fixedly connected to the inner wall of the placement box 8. By arranging the barrier ring 7, the placement box 8 can be blocked, so that the placement box 8 can be supported on the upper surface of the barrier ring 7. By arranging the placement box 8 and the water-permeable frame 9, the pump housing to be cooled can be placed, and the coolant can flow to the outer surface of the pump housing through the water-permeable frame 9. By arranging the handle 10, the movement of the placement box 8 can be facilitated. During use, the operator fills the coolant into the inner cavity of the cooling box 1, then places the pump housing to be cooled in the inner cavity of the placement box 8, and pulls the handle 10 to place the placement box 8 in the inner cavity of the cooling box 1 and make it contact with the barrier ring 7.

[0032] The outer surface of the threaded pipe 45 is provided with spiral grooves. The threaded pipe 45 is a hollow metal pipe. The number of cooling pipes 42 is three, and the three cooling pipes 42 are evenly distributed on the upper surface of the connection shell 41. The cooling pipe 42 is made of metal. By setting the threaded pipe 45, there are multiple spiral grooves on its outer surface, which can be in contact with the cooling pipe 42, so that the contact area between the coolant entering the inner cavity of the cooling pipe 42 and the air can be increased. By setting three cooling pipes 42, the heat dissipation rate of the coolant can be increased. A first water-permeable plate 44 is fixedly connected to the inner wall of the cooling pipe 42. A communicating pipe 48 is fixedly connected to the inner wall of the first water-permeable plate 44. The communicating pipe 48 is located in the inner cavity of the connection shell 41. The top end of the communicating pipe 48 is fixedly connected to the bottom end of the threaded pipe 45. The communicating pipe 48 connects the three threaded pipes 45 together. By setting the first water-permeable plate 44, the coolant in the inner cavity of the cooling pipe 42 can be made to circulate. By setting the communicating pipe 48, the spaces in the inner cavities of the three threaded pipes 45 can be connected together, so that the heat in the cooling pipe 42 can be connected through the communicating pipe 48 and discharged from the top. A heat dissipation groove 43 is fixedly connected to the outer surface of the cooling pipe 42. The number of the heat dissipation grooves 43 is several, and the several heat dissipation grooves 43 are evenly distributed on the outer surface of the cooling pipe 42. The heat dissipation groove 43 is made of metal. A second water-permeable plate 46 is fixedly connected to the inner wall of the cooling pipe 42. An exhaust pipe 47 is fixedly connected to the inner wall of the second water-permeable plate 46. The bottom end of the exhaust pipe 47 is fixedly connected to the top end of the threaded pipe 45. By setting the heat dissipation groove 43, the heat on the outer surface of the cooling pipe 42 can be conveniently dissipated, so that the heat on the outer surface of the cooling pipe 42 can be transferred into the inner cavity of the heat dissipation groove 43 and then the heat is dissipated. By setting the second water-permeable plate 46, the coolant in the inner cavity of the cooling pipe 42 can flow into the top. By setting the exhaust pipe 47, the air in the inner cavity of the threaded pipe 45 can be discharged through the exhaust pipe 47.

[0033] The stirring mechanism 5 includes a fixing frame 51. The fixing frame 51 is fixedly connected to the upper surface of the connection shell 41. A stepping motor 52 is fixedly connected to the top end of the fixing frame 51. The output end of the stepping motor 52 is installed with a rotating rod 53 through a coupling. A stirring plate 54 is fixedly connected to the outer surface of the rotating rod 53. By setting the stepping motor 52, after the power is connected and the switch is turned on, the rotating rod 53 can be rotated, so that the stirring plate 54 is rotated. Finally, when the stirring plate 54 rotates, the air flow on the outer surface of the heat dissipation groove 43 is generated, so as to accelerate the dissipation of the heat on the outer surface of the heat dissipation groove 43. A rotating block 55 is fixedly connected to the top end of the rotating rod 53. A blade 56 is fixedly connected to the upper surface of the rotating block 55. By setting the rotating block 55 and the blade 56, under the rotation of the rotating rod 53, the blade 56 can produce an upward flow effect, so that the coolant flows upward.

[0034] The drainage mechanism 6 includes a top box 61. The top box 61 is fixedly connected to the top end of the cooling pipe 42. The exhaust pipe 47 penetrates through the top box 61 and extends to the upper surface of the top box 61. The rotating block 55 is rotatably connected to the inner wall of the top box 61. The blade 56 is located in the inner cavity of the top box 61. By providing the top box 61, it can be connected to the cooling pipe 42. Thus, when the blade 56 rotates, the coolant in the inner cavity of the top box 61 can flow. A second connecting pipe 62 penetrates through the outer side surface of the top box 61. The second connecting pipe 62 penetrates through the cooling box 1. A drainage ring 63 is fixedly connected to the end of the second connecting pipe 62. A water spray opening 64 penetrates through the inner ring of the drainage ring 63. The number of the water spray openings 64 is several, and several water spray openings 64 are evenly distributed. By providing the drainage ring 63, it can be connected to the second connecting pipe 62. Thus, the coolant in the inner cavity of the top box 61 is poured into the inner cavity of the drainage ring 63 and finally sprayed out from the water spray openings 64 and flows into the inner cavity of the cooling box 1.

[0035] Working principle: During use, the operator pours the coolant into the inner cavity of the cooling box 1. Then, the pump housing to be cooled is placed in the inner cavity of the placement box 8, and the handle 10 is pulled to place the placement box 8 in the inner cavity of the cooling box 1 and make it contact with the barrier ring 7. Then, the operator connects the stepping motor 52 to the power supply and turns on the switch, so that the rotating rod 53 drives the stirring plate 54 and the blade 56 to rotate. When the blade 56 rotates, the coolant in the inner cavity of the top box 61 will flow towards the second connecting pipe 62, and the coolant in the inner cavity of the bottom box 3 will flow into the inner cavity of the cooling pipe 42. During the flow of the coolant, the coolant enters the space between the threaded pipe 45 and the cooling pipe 42, increasing the contact area with the air. Then, under the rotation of the stirring plate 54, the air contacts the heat dissipation grooves 43, and thus the heat is dissipated. After that, the cooled coolant enters the inner cavity of the drainage ring 63 through the second connecting pipe 62 and finally sprays out from the water spray openings 64. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A cooling device for pump housing casting, comprising a cooling box (1), a first connecting pipe (2) penetrates through the outer side surface of the cooling box (1), and the end of the first connecting pipe (2) is fixedly connected with a bottom box (3), characterized in that: The upper surface of the bottom box (3) is penetrated by a heat dissipation mechanism (4), and this heat dissipation mechanism (4) is used to cool the coolant in the inner cavity of the cooling box (1). The heat dissipation mechanism (4) includes a connection shell (41), and the connection shell (41) penetrates the upper surface of the bottom box (3). The upper surface of the connection shell (41) is penetrated by a cooling pipe (42), and a threaded pipe (45) is fixedly connected to the inner wall of the cooling pipe (42); a stirring mechanism (5) is arranged on the upper surface of the connection shell (41), and this stirring mechanism (5) is used to accelerate the heat dissipation rate of the heat dissipation mechanism (4); a drainage mechanism (6) is arranged on the inner wall of the cooling box (1), and this drainage mechanism (6) is used to refill the cooled coolant back into the inner cavity of the cooling box (1).

2. The cooling device for pump housing casting according to claim 1, characterized in that: A barrier ring (7) is fixedly connected to the inner wall of the cooling box (1), a placement box (8) is movably connected to the upper surface of the barrier ring (7), a water permeable frame (9) is fixedly connected to the bottom surface of the inner cavity of the placement box (8), and a handle (10) is fixedly connected to the inner wall of the placement box (8).

3. A cooling device for pump housing casting according to claim 1, characterized in that: Spiral grooves are formed on the outer surface of the threaded pipe (45), and this threaded pipe (45) is a hollow metal pipe. The number of the cooling pipes (42) is three, and the three cooling pipes (42) are evenly distributed on the upper surface of the connection shell (41), and this cooling pipe (42) is made of metal material.

4. A cooling device for pump housing casting according to claim 3, characterized in that: A first water permeable plate (44) is fixedly connected to the inner wall of the cooling pipe (42), a communicating pipe (48) is fixedly connected to the inner wall of the first water permeable plate (44), the communicating pipe (48) is located in the inner cavity of the connection shell (41), the top end of the communicating pipe (48) is fixedly connected to the bottom end of the threaded pipe (45), and this communicating pipe (48) connects the three threaded pipes (45) together.

5. The cooling device for pump housing casting according to claim 4, wherein: Heat dissipation grooves (43) are fixedly connected to the outer surface of the cooling pipe (42), the number of the heat dissipation grooves (43) is several, and the several heat dissipation grooves (43) are evenly distributed on the outer surface of the cooling pipe (42), and this heat dissipation groove (43) is made of metal material. A second water permeable plate (46) is fixedly connected to the inner wall of the cooling pipe (42), an exhaust pipe (47) is fixedly connected to the inner wall of the second water permeable plate (46), and the bottom end of the exhaust pipe (47) is fixedly connected to the top end of the threaded pipe (45).

6. The cooling device for pump housing casting according to claim 5, characterized in that: The stirring mechanism (5) includes a fixed frame (51), the fixed frame (51) is fixedly connected to the upper surface of the connection shell (41), a stepping motor (52) is fixedly connected to the top end of the fixed frame (51), a rotating rod (53) is installed at the output end of the stepping motor (52) through a coupling, and stirring plates (54) are fixedly connected to the outer surface of the rotating rod (53).

7. A cooling device for pump housing casting, characterized in that: A rotating block (55) is fixedly connected to the top end of the rotating rod (53), and blades (56) are fixedly connected to the upper surface of the rotating block (55).

8. A cooling device for pump housing casting, characterized in that: The drainage mechanism (6) includes a top box (61), the top box (61) is fixedly connected to the top end of the cooling pipe (42), the exhaust pipe (47) penetrates through the top box (61) and extends to the upper surface of the top box (61), the rotating block (55) is rotatably connected to the inner wall of the top box (61), and the blade (56) is located in the inner cavity of the top box (61).

9. A cooling device for pump housing casting according to claim 8, characterized in that: A second connecting pipe (62) penetrates through the outer side surface of the top box (61), the second connecting pipe (62) penetrates through the cooling box (1), a drainage ring (63) is fixedly connected to the end of the second connecting pipe (62), a water spraying port (64) penetrates through the inner ring of the drainage ring (63), the number of the water spraying ports (64) is several, and several of the water spraying ports (64) are evenly distributed.

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