Stainless steel precipitation hardening oil cooling equipment

Abstract

The utility model belongs to the technical field of stainless steel processing equipment, and particularly relates to stainless steel precipitation hardening oil cooling equipment which comprises a shell, a heat dissipation box is installed on the upper surface of the shell, and an oil tank is fixed to the upper portion of an inner cavity of the shell. By arranging the guiding sliding hopper of the lateral Y-shaped structure, the contact area between hot oil and air is increased, the contact time between the hot oil and the air is prolonged by utilizing the self-flowing flattening effect when the hot oil slides down, and high-temperature heat in the hot oil can be rapidly cooled through cold air formed under the action of the heat dissipation assembly and the cooling pipe; according to the oil cooling device, the two cooling boxes are arranged, the hot oil in the oil tank is divided and differentiated through the two cooling boxes, the total amount of the hot oil in the average unit is reduced, then the hot oil in the cooling boxes is cooled through the corresponding cooling mechanisms, the temperature of the hot oil in the cooling boxes can be rapidly reduced, and the oil cooling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of stainless steel processing equipment, and in particular relates to a stainless steel precipitation hardening oil cooling device. Background Technology

[0002] Most oil cooling equipment is called an oil cooler, which is divided into two types in terms of structure: air-cooled and water-cooled. It can be widely used in various industries.

[0003] For example, Chinese patent CN220520543U discloses a stainless steel precipitation hardening oil cooling device, including a shell, an oil tank fixed inside the shell, an oil outlet pipe fixedly connected to the bottom of the oil tank, an oil inlet pipe fixedly connected to one side of the oil tank, and a cooling box fixedly connected to the bottom end of the oil inlet pipe. Several connection holes are provided on both sides of the cooling box. In this invention, high-temperature oil is stored in the oil tank, and the oil outlet pipe draws the high-temperature oil into the cooling box. The refrigeration unit is started, and the cold water in the circulation pipe exchanges heat with the hot oil in the cooling box. The cooled water, after heat exchange, enters the refrigeration unit from the other end of the circulation pipe. The oil inlet pipe transports the cooled oil in the cooling box to the oil tank to mix with the hot oil, lowering the oil temperature. The cooperation of the oil inlet and outlet pipes allows the oil to circulate between the oil tank and the cooling box, allowing the oil to undergo multiple cooling cycles in the cooling box, thereby improving the cooling effect of the hot oil.

[0004] This patented device has several drawbacks in its use. For example, while the device cools the hot oil naturally by allowing it to flow through a feed chute on its slope, the temperature reduction upon entering the oil tank is limited, resulting in a low pre-cooling effect. Furthermore, the device relies on a circulation system between the oil tank and the cooling tank to lower the oil temperature. However, the cooled oil then mixes with the hot oil in the cooling tank, requiring continuous operation of the cooling tank to completely cool all the oil. This leads to a lengthy overall cooling process and poor cooling efficiency. Therefore, we propose a stainless steel precipitation hardening oil cooling device. Utility Model Content

[0005] The purpose of this invention is to provide a stainless steel precipitation hardening oil cooling device to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a stainless steel precipitation hardening oil cooling device, comprising:

[0007] The housing has a heat dissipation box installed on its upper surface. An oil tank is fixed to the upper part of the inner cavity of the housing. A cooling tank is symmetrically arranged below the oil tank and fixed to the inner wall of the housing. A drain pipe is provided on the left side wall of the two cooling tanks. The drain pipe has a Y-shaped structure and its two input ends are respectively connected to the two cooling tanks. The output end of the drain pipe passes through the inner wall of the housing and extends to the outside. A delivery pipe is symmetrically fixed on the lower surface of the oil tank and an oil pump is installed on the delivery pipe. The bottom ends of the two delivery pipes extend to the inner cavity of the corresponding cooling tank.

[0008] Two cooling mechanisms are respectively located on the right side of the housing, and the circulation pipe end of the cooling mechanism penetrates through the outer wall of the housing and extends into the corresponding cooling tank, and is used to cool the hot oil in the cooling tank;

[0009] A guide hopper is installed inside the heat sink. The guide hopper has a side Y-shaped structure. A feed hopper is fixed at the upper slope of the guide hopper, and the top of the feed hopper penetrates the inner wall of the heat sink and extends to the outside. A discharge pipe is fixed at the lower slope of the guide hopper, and the bottom end of the discharge pipe penetrates the upper surface of the shell and extends to the inner cavity of the oil tank.

[0010] A heat dissipation assembly is located inside the heat dissipation box and is used to rapidly cool the hot oil on the two slopes of the guide chute.

[0011] In this technical solution, a guide chute with a side-Y-shaped structure is used to increase the contact area and contact time between the hot oil and air by utilizing the self-flowing and leveling effect of the hot oil as it slides down. The cold air generated by the heat dissipation components and cooling pipes can quickly cool down the high temperature of the hot oil, allowing the hot oil to be pre-cooled before entering the inner cavity of the oil tank. This saves a lot of time for subsequent cooling and greatly improves the oil cooling efficiency. Furthermore, by setting up two cooling boxes, the hot oil in the oil tank is diverted and differentiated, reducing the total amount of hot oil per unit area, i.e., weakening the heat of the hot oil in a certain unit area. The hot oil in the cooling boxes is then cooled by corresponding cooling mechanisms, which can rapidly reduce the temperature of the hot oil in the cooling boxes and greatly improve the oil cooling efficiency.

[0012] In the above technical solution, a solenoid valve is further installed on both input ends of the drain pipe.

[0013] In the above technical solution, the heat dissipation component further includes:

[0014] An air inlet and an air outlet are respectively located on the rear and front side walls of the heat sink. An intake fan and an exhaust fan are respectively installed inside the air inlet and the air outlet. An installation mesh plate fixed to the inner wall of the heat sink is provided inside the intake fan. A cooling pipe is installed inside the installation mesh plate. Multiple evenly distributed ventilation holes are opened on the installation mesh plate.

[0015] In the above technical solution, a dustproof net is further installed at the opening position on the outer side of both the air inlet and the air outlet.

[0016] In this technical solution, the multiple dustproof nets in the device can effectively prevent external dust from entering the inner cavity of the device, reducing the impact of dust on the hot oil.

[0017] In the above technical solution, further, heat dissipation grooves are symmetrically opened on the inner wall of the heat dissipation box and on the two slopes of the guide chute.

[0018] In this technical solution, the pre-cooling efficiency of the device for hot oil is improved by setting up heat dissipation grooves.

[0019] In the above technical solution, the cooling mechanism further includes multiple circulation pipes, two water collection pipes, two delivery pipes, and a refrigeration unit. The circulation pipes are U-shaped, and the main body of the circulation pipes is located in the inner cavity of the corresponding cooling box. The two ends of the circulation pipes pass through the inner wall of the cooling box and the inner wall of the shell in sequence and extend to the outside. Both ends of the multiple circulation pipes are connected and fixed with water collection pipes. The outer circular walls of the two water collection pipes are connected and fixed with delivery pipes on their similar sides. The two delivery pipes are connected and fixed with a refrigeration unit, which is located on the outside of the shell.

[0020] In the above technical solution, the left and right side walls of the housing are symmetrically provided with through holes, one of the through holes is equipped with an exhaust fan, and the other through hole is fixed with a protective mesh plate, and the inner wall of the protective mesh plate is provided with a dustproof mesh.

[0021] In this technical solution, by setting an exhaust fan, heat accumulation in the inner cavity of the casing is avoided, thereby reducing the cooling effect on the hot oil.

[0022] The beneficial effects of this utility model are:

[0023] 1. This stainless steel precipitation hardening oil cooling equipment, by setting up a guide chute with a side Y-shaped structure, utilizes the self-flowing and leveling effect of hot oil as it slides down to increase the contact area and contact time between the hot oil and the air. The cold air generated by the heat dissipation components and cooling pipes can quickly cool down the high temperature heat in the hot oil, so that the hot oil can be pre-cooled before entering the inner cavity of the oil tank in the shell, saving a lot of time for subsequent cooling of the hot oil and greatly improving the oil cooling efficiency.

[0024] 2. This stainless steel precipitation hardening oil cooling equipment uses two cooling tanks to divert and separate the hot oil in the tank, reducing the total amount of hot oil per unit, thus weakening the heat of the hot oil in a certain unit. Then, the hot oil in the cooling tank is cooled by corresponding cooling mechanisms, so that the temperature of the hot oil in the cooling tank can be rapidly reduced, greatly improving the oil cooling efficiency. Attached Figure Description

[0025] Figure 1 This is one of the overall structural schematic diagrams of this utility model (in front view).

[0026] Figure 2 This is the second schematic diagram of the overall structure of this utility model (in rear view).

[0027] Figure 3 This is a schematic diagram showing the distribution of the internal components of the housing in this utility model;

[0028] Figure 4 This is an exploded view of the internal cavity parts of the heat sink in this utility model;

[0029] Figure 5 This is a cross-sectional view of the heat dissipation box in this utility model;

[0030] Figure 6 This is a schematic diagram of the structure for installing the mesh plate and cooling pipe in this utility model;

[0031] Figure 7 This is a schematic diagram of the guide hopper structure in this utility model;

[0032] Figure 8 This is a schematic diagram of the cooling mechanism in this utility model.

[0033] The markings in the diagram are as follows:

[0034] 1. Shell; 2. Heat sink; 3. Oil tank; 4. Cooling tank; 5. Drain pipe; 6. Solenoid valve; 7. Infusion pipe; 8. Oil pump; 9. Air inlet; 10. Air outlet; 11. Intake fan; 12. Exhaust fan; 13. Dustproof net; 14. Guide chute; 15. Feed hopper; 16. Discharge pipe; 17. Heat dissipation trough; 18. Mounting mesh plate; 19. Cooling pipe; 20. Cooling mechanism; 21. Exhaust fan; 22. Protective mesh plate. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] It should be noted that, in this application, 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 that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example 1

[0040] Please see Figure 1 - Figure 8 As shown, this embodiment provides a stainless steel precipitation hardening oil cooling device, including:

[0041] The housing 1 has a heat sink 2 installed on its upper surface. An oil tank 3 is fixed to the upper part of the inner cavity of the housing 1. A cooling tank 4 is symmetrically arranged below the oil tank 3 and fixed to the inner wall of the housing 1. A drain pipe 5 is provided on the left side wall of the two cooling tanks 4. The drain pipe 5 has a Y-shaped structure and its two input ends are respectively connected to the two cooling tanks 4. The output end of the drain pipe 5 passes through the inner wall of the housing 1 and extends to the outside. A liquid delivery pipe 7 is symmetrically fixed on the lower surface of the oil tank 3 and an oil pump 8 is installed on the liquid delivery pipe 7. The bottom ends of the two liquid delivery pipes 7 extend to the inner cavity of the corresponding cooling tank 4.

[0042] Two cooling mechanisms 20 are respectively located on the right side of the housing 1, and the circulation pipe end of the cooling mechanism 20 penetrates the outer wall of the housing 1 and extends into the corresponding cooling box 4, and is used to cool the hot oil in the cooling box 4.

[0043] A guide hopper 14 is installed in the inner cavity of the heat sink 2. The guide hopper 14 has a side Y-shaped structure. A feed hopper 15 is fixed at the upper slope of the guide hopper 14, and the top of the feed hopper 15 penetrates the inner wall of the heat sink 2 and extends to the outside. A discharge pipe 16 is fixed at the lower slope of the guide hopper 14, and the bottom end of the discharge pipe 16 penetrates the upper surface of the shell 1 and extends to the inner cavity of the oil tank 3.

[0044] The heat dissipation component is located inside the heat dissipation box 2 and is used to quickly cool the hot oil on the two slopes of the guide hopper 14.

[0045] Solenoid valves 6 are installed on both input ends of the drain pipe 5;

[0046] The cooling mechanism 20 includes multiple circulation pipes, two water collection pipes, two delivery pipes, and a refrigeration unit. The circulation pipes are U-shaped, and the main body of the circulation pipes is located in the inner cavity of the corresponding cooling box 4. The two ends of the circulation pipes pass through the inner wall of the cooling box 4 and the inner wall of the shell 1 in sequence and extend to the outside. Both ends of the multiple circulation pipes are connected and fixed to the water collection pipes. The outer circular walls of the two water collection pipes are connected and fixed to the delivery pipes on the side that are close to each other. The refrigeration unit is connected and fixed between the two delivery pipes. The refrigeration unit is located on the outside of the shell 1.

[0047] The working principle of this device is as follows:

[0048] The heat dissipation components and cooling mechanism 20 are activated. The operator pours hot oil into the device through the top opening of the feed hopper 15. The hot oil falls from the top opening of the feed hopper 15 onto the upper surface of the guide chute 14. It then flows and levels itself on the upper slope of the guide chute 14, and under the influence of gravity, slides forward along the upper slope until it reaches the junction of the upper and lower slopes. At this point, the hot oil falls from the junction under gravity onto the lower slope, where it then flows and levels itself. The oil slowly falls until it reaches the oil tank 3 inside the shell 1 along the discharge pipe 16. During this process, the two guide chutes 14 with opposite slopes greatly increase the contact time and area between the hot oil and the air. When the heat dissipation components are working, the intake fan 11 draws air from the outside and blows it onto the mounting mesh plate 18. The air then passes through multiple through holes on the mounting mesh plate 18 and the cooling pipe 19. The air temperature drops under the action of the cooling pipe 19, forming cold air. This cold air then comes into contact with the hot oil on the guide chutes 14, greatly increasing the contact time and area between the hot oil and the air. The hot oil's temperature is removed, and then the high-temperature gas is discharged to the outside from the front outlet 10 of the heat exchanger 2 under the action of the exhaust fan 12. At this time, the temperature of the hot oil entering the oil tank 3 has been greatly reduced. Then, the oil pumps 8 on the two liquid infusion pipes 7 are started, so that the hot oil in the oil tank 3 flows into the two cooling tanks 4 below. Under the action of the cooling mechanism 20, the hot oil in the cooling tanks 4 is further cooled. When the temperature of the hot oil reaches the emission standard, the two solenoid valves 6 on the drain pipe 5 are opened, so that the cooled hot oil in the two cooling tanks 4 can be discharged from the drain pipe 5 to the collection device. It is worth noting that the cooling mechanism 20 is prior art, and will not be described in detail in this application. It is worth noting that in this application, the number of cooling tanks 4 in the inner cavity of the shell 1 is 2 heat exchangers. In actual application, the number of cooling tanks 4 and cooling mechanism 20 can be adaptively increased according to production needs and device size. The multiple dustproof nets 13 in this device can effectively prevent external dust from entering the inner cavity of the device and reduce the impact of dust on the hot oil.

[0049] By setting up a guide chute 14 with a side Y-shaped structure, the self-flowing and leveling effect of hot oil as it slides down increases the contact area and contact time between the hot oil and the air. The cold air formed by the heat dissipation components and cooling pipes 19 can quickly cool down the high temperature of the hot oil, so that the hot oil can be pre-cooled before entering the inner cavity of the oil tank 3 in the shell 1, saving a lot of time for subsequent cooling of the hot oil and greatly improving the oil cooling efficiency. Furthermore, by setting up two cooling boxes 4, the hot oil in the oil tank 3 is diverted and differentiated, reducing the total amount of hot oil in an average unit, that is, weakening the heat of the hot oil in a certain unit. Then, the hot oil in the cooling boxes 4 is cooled by the corresponding cooling mechanisms 20, so that the temperature of the hot oil in the cooling boxes 4 can be rapidly reduced, greatly improving the oil cooling efficiency. Example 2

[0050] This embodiment provides a stainless steel precipitation hardening oil cooling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the heat dissipation component includes:

[0051] An air inlet 9 and an air outlet 10 are respectively located on the rear and front side walls of the heat sink 2. An intake fan 11 and an exhaust fan 12 are respectively installed inside the air inlet 9 and the air outlet 10. An installation mesh plate 18 fixed to the inner wall of the heat sink 2 is provided inside the intake fan 11. A cooling pipe 19 is installed inside the installation mesh plate 18. Multiple evenly distributed ventilation holes are opened on the installation mesh plate 18.

[0052] Dustproof nets 13 are installed at the outer openings of both the air inlet 9 and the air outlet 10.

[0053] When the heat dissipation component is working, the intake fan 11 draws in air from the outside and blows the air to the mounting mesh plate 18. The air then passes through multiple through holes on the mounting mesh plate 18 and the cooling pipe 19. The air temperature drops under the action of the cooling pipe 19 and forms cold air. This cold air then comes into contact with the hot oil on the guide chute 14 and greatly removes the temperature of the hot oil. Then, the high-temperature gas is discharged to the outside from the air outlet 10 on the front side of the heat dissipation box 2 under the action of the exhaust fan 12.

[0054] The cool air generated by the heat dissipation components and cooling pipe 19 can quickly cool down the high temperature of the hot oil, so that the hot oil can be pre-cooled before entering the inner cavity of the oil tank 3 in the shell 1, which saves a lot of time for subsequent cooling of the hot oil and greatly improves the oil cooling efficiency. Example 3

[0055] This embodiment provides a stainless steel precipitation hardening oil cooling device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: heat dissipation grooves 17 are symmetrically opened on the inner wall of the heat dissipation box 2 and on the periphery of the two slopes of the guide chute 14.

[0056] When the intake fan 11 is working, the cold air formed by the interaction with the cooling pipe 19 can make more full contact with the hot oil in the middle from both sides of the guide chute 14.

[0057] By setting up the heat dissipation groove 17, the pre-cooling efficiency of the device for hot oil is improved. Example 4

[0058] This embodiment provides a stainless steel precipitation hardening oil cooling device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the left and right side walls of the shell 1 are symmetrically provided with through holes, one of which is equipped with an exhaust fan 21, and the other is fixed with a protective mesh plate 22. The inner wall of the protective mesh plate 22 is provided with a dustproof mesh 13.

[0059] When the device is in operation, the exhaust fan 21 can be started in advance. The exhaust fan 21 works and generates negative pressure, which draws the high-temperature air in the housing 1 to the outside, while the cold air enters the inner cavity of the housing 1 from the side of the protective mesh plate 22.

[0060] By installing an exhaust fan 21, heat buildup in the inner cavity of the housing 1 is prevented, thereby reducing the cooling effect on the hot oil.

[0061] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A stainless steel precipitation hardening oil cooled apparatus, characterized by, Include: The upper surface of the shell (1) is provided with a heat dissipation box (2), the inner cavity of the shell (1) is fixed with an oil tank (3) at the upper part, the lower part of the oil tank (3) is symmetrically provided with a cooling box (4) fixed with the inner wall of the shell (1), the left side wall of the two cooling boxes (4) is provided with a drainage pipe (5), the drainage pipe (5) is Y-shaped structure, and the two input ends of the drainage pipe (5) are respectively connected with the two cooling boxes (4), the output end of the drainage pipe (5) penetrates the inner wall of the shell (1) and extends to the outside, the lower surface of the oil tank (3) is symmetrically fixed with a liquid delivery pipe (7), and the oil pump (8) is installed on the liquid delivery pipe (7), the bottom ends of the two liquid delivery pipes (7) respectively extend into the inner cavities of the corresponding cooling boxes (4); Two cooling mechanisms (20) are arranged on the right side of the shell (1), and the circulating pipe end of the cooling mechanism (20) penetrates the outer wall of the shell (1) and extends into the corresponding cooling box (4), and is used for cooling the hot oil in the cooling box (4); The guide chute (14) is arranged in the inner cavity of the heat dissipation box (2), the guide chute (14) is Y-shaped structure, the upper slope position of the guide chute (14) is fixed with a feeding hopper (15), and the top of the feeding hopper (15) penetrates the inner wall of the heat dissipation box (2) and extends to the outside, the lower slope position of the guide chute (14) is fixed with a discharge pipe (16), and the bottom end of the discharge pipe (16) penetrates the upper surface of the shell (1) and extends into the inner cavity of the oil tank (3); The heat dissipation assembly is located in the inner cavity of the heat dissipation box (2), and is used for rapidly cooling the hot oil on the two slopes of the guide chute (14).

2. A stainless steel precipitation hardening oil cooled apparatus according to claim 1, characterized in that, The two input ends of the drainage pipe (5) are respectively provided with an electromagnetic valve (6).

3. A stainless steel precipitation hardening oil cooled apparatus as defined in claim 1, characterized in that, The heat dissipation assembly comprises: Air inlet (9) and air outlet (10), the air inlet (9) and air outlet (10) are respectively arranged on the rear side and front side wall of the heat dissipation box (2), the air inlet (9) and air outlet (10) are respectively provided with an air inlet fan (11) and an exhaust fan (12), the inner side of the air inlet fan (11) is provided with a mounting net plate (18) fixed with the inner wall of the heat dissipation box (2), the mounting net plate (18) is provided with a cooling pipe (19), and a plurality of air holes are arranged on the mounting net plate (18).

4. A stainless steel precipitation hardening oil cooled apparatus according to claim 3, characterized in that, The opening position of the air inlet (9) and air outlet (10) is provided with a dustproof net (13).

5. A stainless steel precipitation hardening oil cooled apparatus as defined in claim 1, wherein, The inner wall of the heat dissipation box (2) and the two slopes of the guide chute (14) are symmetrically provided with a heat dissipation groove (17).

6. A stainless steel precipitation hardening oil cooled apparatus as defined in claim 1, wherein, The cooling mechanism (20) comprises a plurality of circulating pipes, two water collecting pipes, two conveying pipes and a refrigerating machine, wherein the circulating pipes are in U-shaped structure, the main parts of the circulating pipes are arranged in the inner cavities of the corresponding cooling boxes (4), the two ends of the circulating pipes pass through the inner walls of the cooling boxes (4) and the inner wall of the shell (1) in sequence and extend to the outside, the two ends of the plurality of circulating pipes are both communicated and fixed with the water collecting pipes, the sides close to the outer circumferential walls of the two water collecting pipes are both communicated and fixed with the conveying pipes, the two conveying pipes are fixed and communicated with the refrigerating machine, and the refrigerating machine is arranged on the outside of the shell (1).

7. A stainless steel precipitation hardening oil cooled apparatus as defined in claim 1, wherein, The left and right side walls of the shell (1) are symmetrically provided with through holes, one of the through holes is provided with an exhaust fan (21), the other through hole is fixed with a protective mesh plate (22), and the inner wall of the protective mesh plate (22) is provided with a dust screen (13).

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