Cooling device
By installing heat exchange components and a steel wire winding layer on the outside of the hot isostatic pressing equipment, the problems of poor cooling effect and leakage risk are solved, achieving efficient cooling and improved safety.
Patent Information
- Application Number
- CN202410689040.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-11-21
AI Technical Summary
The cooling devices of existing hot isostatic pressing equipment are difficult to manufacture, have poor cooling effect, and are prone to leakage risks.
The cooling device is installed outside the shell of the hot isostatic pressing equipment. It is fixed to the outside of the shell using heat exchange components and steel wire winding layers to form multiple heat exchange channels. The coolant flows in the channels to dissipate heat, avoiding direct contact with the power supply device.
It improves cooling efficiency, reduces processing costs, avoids the risk of leakage, and is not limited by equipment size.
Smart Images
Figure CN120991595A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hot isostatic pressing equipment technology, and more specifically, to a cooling device. Background Technology
[0002] Hot isostatic pressing (HIP) is a process that uses inert gases such as helium or nitrogen to apply isotropic pressure to the product while maintaining high temperature, causing it to sinter and densify under high temperature and pressure. HIP mainly consists of a high-pressure vessel, a heating furnace, a compressor, a vacuum pump, a cooling system, and a computer control system, with the high-pressure vessel being the key component. During operation, HIP generates a large amount of heat, requiring cooling of the high-pressure vessel walls to prevent damage from exceeding the material's temperature limits. Because HIP is a high-temperature, high-pressure specialized equipment, with maximum operating temperatures and pressures reaching 2000℃ and 200MPa, the thick walls of the high-pressure vessel hinder heat dissipation.
[0003] Therefore, the cooling devices in existing hot isostatic pressing equipment are usually located inside the high-pressure vessel shell. However, due to the size limitations of the high-pressure vessel shell, the size of the cooling device is restricted. The cooling device adopts a cylindrical slotted form, but the slot size is limited, resulting in a small heat exchange area and poor cooling effect. Since the heat exchange channels of the cooling device need to be slotted in another internal cylindrical shell, there are difficulties in the molding process and processing. Furthermore, because there are electrical devices inside the high-pressure vessel, placing the cooling device inside the high-pressure vessel easily leads to the risk of electric leakage. Summary of the Invention
[0004] The purpose of this application is to provide a cooling device to solve the problems of difficult processing, poor cooling effect, and easy risk of leakage in the prior art.
[0005] Based on this, this application provides a cooling device applied to a hot isostatic pressing (HIP) equipment. The housing of the HIP equipment is thermally conductive. The device includes: a heat exchange assembly surrounding the housing and forming multiple first heat exchange channels with the outer wall of the housing, wherein coolant flows through the multiple first heat exchange channels; wherein the heat exchange assembly includes multiple fixed columns arranged in parallel, with adjacent fixed columns not in contact, and adjacent fixed columns forming a first heat exchange channel with the outer wall of the housing; and a wire winding layer surrounding the heat exchange assembly for fixing the heat exchange assembly and applying a preload force to the housing and the heat exchange assembly, placing them under pressure.
[0006] In conjunction with the cooling device described above, the wire winding layer and the heat exchange assembly form multiple second heat exchange channels, through which coolant flows; wherein, the wire winding layer and the surfaces of the two adjacent fixed columns form a second heat exchange channel.
[0007] The cooling device described above also includes: a protective outer shell, a first fixed flange, and a second fixed flange; both ends of the wire winding layer are fixedly connected to the first fixed flange and the second fixed flange, respectively; the protective outer shell covers the wire winding layer, and both ends of the protective outer shell are fixedly connected to the first fixed flange and the second fixed flange, respectively.
[0008] In conjunction with the aforementioned cooling device, the first fixed flange is disposed at one end of the hot isostatic pressing equipment, and the second fixed flange is disposed at the other end of the hot isostatic pressing equipment.
[0009] In conjunction with the above-described cooling device, a first connecting key and a second connecting key are also included. The first fixed flange and the hot isostatic pressing device are connected by the first connecting key, and the second fixed flange and the hot isostatic pressing device are connected by the second connecting key.
[0010] In conjunction with the aforementioned cooling device, it also includes a first pressure flange and a second pressure flange; the first pressure flange is disposed on the first fixed flange and is in contact with one end of the hot isostatic pressing equipment; the second pressure flange is disposed on the second fixed flange and is in contact with the other end of the hot isostatic pressing equipment.
[0011] In conjunction with the aforementioned cooling device, the first connecting key is located at one end of the hot isostatic pressing equipment, and the second connecting key is located at the other end of the hot isostatic pressing equipment; a first sealing ring is provided between the first flange and the first connecting key, and the first sealing ring abuts against the first flange and the first connecting key; a second sealing ring is provided between the second flange and the second connecting key, and the second sealing ring abuts against the second flange and the second connecting key.
[0012] In conjunction with the above-described cooling device, the first fixed flange is provided with a first water tank, which is connected to the plurality of first heat exchange channels and the plurality of second heat exchange channels; the second fixed flange is provided with a second water tank, which is connected to the plurality of first heat exchange channels and the plurality of second heat exchange channels.
[0013] In conjunction with the cooling device described above, a first water inlet / outlet interface is provided on the side of the first fixed flange 105, and the first water inlet / outlet interface is connected to the first water tank; a second water inlet / outlet interface is provided on the side of the second fixed flange 106, and the second water inlet / outlet interface is connected to the second water tank.
[0014] In conjunction with the aforementioned cooling device, the protective outer shell is cylindrical and is composed of a left shell and a right shell; wherein, both the left shell and the right shell are semi-cylindrical, and the left shell and the right shell are detachably connected.
[0015] The beneficial effects of the cooling device provided in this application are at least as follows: This solution places the cooling device outside the shell of the hot isostatic pressing (HIP) equipment. The heat exchange component is fixed to the outside of the HIP equipment shell by a pre-tensioned steel wire winding layer. The heat exchange component and the shell can be considered as a whole through the steel wire winding. The heat exchange component can, to a certain extent, share the working pressure with the shell. This solution can significantly reduce the thickness of the shell, which is beneficial for heat conduction within the shell. The sealed space formed between the steel wire winding layer, the heat exchange component, and the shell serves as a heat exchange channel. Coolant flows within the heat exchange channel, transferring heat from inside the HIP equipment to the outside, achieving rapid cooling. In this solution, the cooling device is not limited by the size of the HIP equipment, has a larger heat exchange area, higher heat exchange efficiency, lower processing cost, and simpler manufacturing process. Furthermore, the external placement of the cooling device prevents direct contact between the cooling water and the electrical device in case of leakage, avoiding safety hazards. This solves the problems of difficult processing, poor cooling effect, and easy leakage risk in existing technologies. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a cross-sectional structural schematic diagram of a heat exchange component provided in an embodiment of this application;
[0018] Figure 2 A schematic cross-sectional view of the assembly structure of the cooling device and the housing of the hot isostatic pressing equipment provided in an embodiment of this application;
[0019] Figure 3 This is a top view of a cooling device provided in an embodiment of this application.
[0020] The following are the labeling elements in the figure:
[0021] 101. Shell; 102. Heat exchange assembly; 103. Wire winding layer; 104. Protective shell; 105. First fixed flange; 106. Second fixed flange; 107. First connecting key; 108. Second connecting key; 109. First pressure flange; 110. Second pressure flange; 111. First sealing ring; 112. Second sealing ring; 1021. First heat exchange channel; 1022. Second heat exchange channel; 1023. Fixed column; 1051. First water tank; 1052. Second water tank. Detailed Implementation
[0022] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0023] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.
[0024] Hot isostatic pressing (HIP) is a technology that processes products using inert gases such as helium or nitrogen. It applies isotropic pressure to the product while simultaneously applying high temperatures, causing sintering and densification under high temperature and pressure. HIP mainly consists of a high-pressure vessel, a heating furnace, a compressor, a vacuum pump, a cooling system, and a computer control system, with the high-pressure vessel being the key component. During operation, HIP generates a large amount of heat, requiring cooling of the high-pressure vessel's walls to prevent damage from exceeding the material's temperature limits. Because HIP is a high-temperature, high-pressure specialized equipment, with maximum operating temperatures and pressures reaching 2000℃ and 200MPa, and the vessel's significant thickness hindering heat dissipation, existing HIP systems typically place cooling devices inside the high-pressure vessel. However, the size of these devices is limited by the vessel's dimensions, resulting in a narrow, slotted cylindrical design with limited space for heat exchange and poor cooling performance. Because the heat exchange channels of the cooling device need to be slotted in another internal cylindrical shell, there are difficulties in the molding process and processing. In addition, since there are electrical devices inside the high-pressure vessel, placing the cooling device inside the high-pressure vessel can easily cause the risk of electric leakage.
[0025] Based on this, this application provides a cooling device for use in a hot isostatic pressing (HIP) apparatus, wherein the housing of the HIP apparatus has thermal conductivity, such as... Figure 1-3 As shown, the device includes a heat exchange assembly 102 and a wire winding layer 103. The heat exchange assembly 102 is arranged around the outer side of the housing 101 and forms multiple first heat exchange channels 1021 with the outer wall of the housing 101. Coolant flows through the multiple first heat exchange channels 1021. The heat exchange assembly 102 includes multiple fixing posts 1023, which are arranged in parallel and adjacent fixing posts 1023 are not in contact with each other. Two adjacent fixing posts 1023 form a first heat exchange channel 1021 with the outer wall of the housing 101. The wire winding layer 103 surrounds the heat exchange assembly 102 and is used to fix the heat exchange assembly 102.
[0026] Specifically, in this design, the heat exchange assembly 102 can be composed of multiple solid fixed columns 1023, with adjacent fixed columns 1023 not in contact. The multiple fixed columns 1023 are arranged in parallel, and the cross-section of each fixed column 1023 can be triangular, circular, polygonal, or other shapes. Two adjacent fixed columns 1023, together with the outer wall of the hot isostatic pressing equipment housing 101, form a first heat exchange channel 1021, through which coolant flows. The coolant can be cooling water, which can be connected to a separately installed cooling water circulation device. This cooling water circulation device is located outside the hot isostatic pressing equipment and is used to circulate cooling water. Multiple fixed columns 1023 and the outer wall of the hot isostatic pressing equipment housing 101 form multiple first heat exchange channels 1021. All of the multiple first heat exchange channels 1021 can be connected to the aforementioned cooling circulation device. Cooling water flows through the multiple first heat exchange channels 1021 and is continuously circulated through the cooling water circulation device set outside the hot isostatic pressing equipment, transferring the heat inside the hot isostatic pressing equipment to the outside, thereby achieving the cooling effect.
[0027] In one example, the heat exchange assembly 102 includes multiple solid fixed columns 1023 arranged in parallel and sequentially along the outer wall of the shell 101 of the hot isostatic pressing equipment. In a more specific embodiment, any two adjacent fixed columns 1023 are not in contact with each other; the multiple fixed columns 1023 can be tightly connected to the outer wall of the cylinder by the preload of the wire winding layer 103. The multiple fixed columns 1023 can also be initially connected by welding or other methods, which are not specifically limited in this application.
[0028] In this embodiment, the solid fixing column 1023 can be made of special steel of the same material as the outer wall of the hot isostatic pressing equipment, which has high structural strength, strong compressive strength, and excellent mechanical properties. A wire winding layer 103 is wound around the fixing column 1023, fixing multiple fixing columns 1023 to the outer wall of the hot isostatic pressing equipment. The wire winding layer 103 applies a preload to the multiple fixing columns 1023 to ensure a tight connection between the multiple fixing columns 1023 and the outer wall of the hot isostatic pressing equipment. In one example, the wire winding layer 103 applies a sufficiently large preload to the multiple fixing columns 1023 to tightly connect them to the outer wall of the isostatic pressing equipment. In this case, the wire winding layer 103, the multiple fixing columns 1023, and the outer wall of the hot isostatic pressing equipment can be considered as a single unit. Because the high-pressure gas inside the hot isostatic pressing (HIP) equipment exerts strong pressure on the outer wall of the equipment, this pressure also acts on the wire winding layer 103 and the multiple fixing columns 1023. The wire winding layer 103 and the multiple fixing columns 1023 share the pressure on the outer wall of the HIP, allowing the outer wall of the equipment to be made thinner. A thinner outer wall is more conducive to heat dissipation, and the wire winding layer 103, the multiple fixing columns 1023, and the aforementioned thin outer wall as a whole can withstand the strong pressure exerted by the high-pressure gas inside the equipment. This effectively solves the problem of excessively thick outer walls and poor heat dissipation in existing HIP equipment.
[0029] In one example, the solid fixed column 1023 can be a fixed column 1023 with an equilateral hexagonal cross section. Multiple such fixed columns 1023 together with the outer wall of the hot isostatic pressing equipment form multiple first heat exchange channels 1021. Cooling water flows in the multiple first heat exchange channels 1021. The cooling water is driven by an external cooling circulation device and continuously circulates to cool the outer wall of the hot isostatic pressing equipment.
[0030] Compared with the prior art, this embodiment places the cooling device outside the housing 101 of the hot isostatic pressing equipment. The heat exchange component 102 is fixed to the outside of the housing 101 by a pre-tensioned steel wire winding layer 103. The heat exchange component 102 and the housing 101 can be regarded as a whole by the steel wire winding. The heat exchange component 102 can share the working pressure of the housing 101. This solution can greatly reduce the thickness of the housing 101, which is beneficial to the conduction of heat inside the housing 101. The sealed space formed between the steel wire winding layer 103, the heat exchange component 102, and the housing 101 is a heat exchange channel. The coolant flows in the heat exchange channel, transferring the heat inside the hot isostatic pressing equipment to the outside, achieving the purpose of rapid cooling. In this solution, the cooling device is not limited by the size of the hot isostatic pressing equipment, has a larger heat exchange area, high heat exchange efficiency, low processing cost, and simple manufacturing process. At the same time, the external placement of the cooling device can also prevent the cooling water from directly contacting the electrical device in case of leakage, avoiding safety hazards. This invention solves the problems of difficult processing of cooling devices, poor cooling effect, and easy risk of leakage in existing technologies.
[0031] In some embodiments, the wire winding layer 103 and the heat exchange assembly 102 form multiple second heat exchange channels 1022, through which coolant flows. Specifically, the wire winding layer 103 and the surfaces of two adjacent fixed columns 1023 form one second heat exchange channel 1022.
[0032] Specifically, in this embodiment, the wire winding layer 103 is disposed on the outer surface of the heat exchange assembly 102, that is, the wire winding layer 103 is wound around the outside of multiple fixed columns 1023. The inner side of the heat exchange assembly 102 is in contact with the housing 101 of the hot isostatic pressing equipment, and at the contact point, the heat exchange assembly 102 and the housing 101 of the hot isostatic pressing equipment enclose multiple first heat exchange channels 1021; the outer side of the heat exchange assembly 102 is away from the housing 101 of the hot isostatic pressing equipment and is in contact with the wire winding layer 103, and the outer side of the heat exchange assembly 102 and the wire winding layer 103 enclose multiple second heat exchange channels 1022, wherein adjacent fixed columns 1023 and the wire winding layer 103 enclose one heat exchange channel. Coolant flows in the heat exchange channels for circulating cooling. In one example, the coolant can be cooling water, which can be connected to a separately provided cooling water circulation device. This cooling water circulation device is disposed outside the hot isostatic pressing equipment for circulating cooling water.
[0033] In some embodiments, the wire winding layer 103 is wound around the outside of the heat exchange component 102 in a clockwise or counterclockwise direction, and the wire winding layer 103 applies a preload to the heat exchange component 102 to securely connect the heat exchange component 102 to the housing 101 of the thermal isostatic pressing (HIP) device. In one example, the wire winding layer 103 is composed of multiple layers of steel wire. During the wire winding process, each layer of steel wire applies a preload to the previous layer. Through the winding of multiple layers of steel wire, the heat exchange component 102 is very securely connected to the housing 101 of the HIP device. The wire winding layer 103, the heat exchange component 102, and the housing 101 of the HIP device can be regarded as a whole to withstand the pressure exerted on the housing 101 by the gas inside the HIP device. This solution can significantly reduce the thickness of the housing 101 of the HIP device, which is beneficial for conducting heat inside the HIP device and improving heat dissipation efficiency.
[0034] In some embodiments, the cooling device further includes a protective housing 104, a first fixed flange 105, and a second fixed flange 106. The two ends of the wire winding layer 103 are fixedly connected to the first fixed flange 105 and the second fixed flange 106, respectively. The protective housing 104 covers the wire winding layer 103, and the two ends of the protective housing 104 are fixedly connected to the first fixed flange 105 and the second fixed flange 106, respectively.
[0035] Specifically, in this embodiment, the protective shell 104 covers the wire winding layer 103 and protects the wire winding layer 103 and the heat exchange assembly 102. Both ends of the protective shell 104 are connected to the first fixed flange 105 and the second fixed flange 106, respectively. The protective shell 104, the first fixed flange 105, and the second fixed flange 106 together form a cavity. The wire winding layer 103 and the heat exchange assembly 102 are disposed within this cavity. It can be understood that the dimensions of the protective shell 104 are larger than the dimensions of the wire winding layer 103 and the heat exchange assembly 102, including height and inner diameter. The protective shell 104 can be configured to be in contact with the wire winding layer 103, or it can be configured to be spaced apart from the wire winding layer 103.
[0036] In one example, one end of the heat exchange assembly 102 is fixedly connected to the first fixed flange 105 or the second fixed flange 106, while the other end is free. That is, one end of each of the multiple fixed posts 1023 is fixedly connected to the first fixed flange 105 or the second fixed flange 106, while the other end is free. To ensure a stable connection between the multiple fixed posts 1023 and the first fixed flange 105 or the second fixed flange 106, in some embodiments, the multiple fixed posts 1023 can be welded to the first fixed flange 105 or the second fixed flange 106.
[0037] In one example, the first fixed flange 105 and the second fixed flange 106 are both in contact with the wire winding layer 103 and the heat exchange assembly 102. The first fixed flange 105 is located at one end of the hot isostatic pressing (HIP) device, and the second fixed flange 106 is located at the other end. Both the first fixed flange 105 and the second fixed flange 106 are keyed to the HIP device. Specifically, the first fixed flange 105 is connected to the HIP device via a first connecting key 107 and is fixed to one end of the HIP device. The second fixed flange 106 is connected to the HIP device via a second connecting key 108 and is fixed to the other end of the HIP device. It is understood that one end and the other end of the HIP device are two opposite ends of the HIP device.
[0038] In some embodiments, the cooling device further includes a first pressure flange 109 and a second pressure flange 110. The first pressure flange 109 is disposed on the first fixed flange 105 and is in contact with one end of the hot isostatic pressing device. The second pressure flange 110 is disposed on the second fixed flange 106 and is in contact with the other end of the hot isostatic pressing device.
[0039] Specifically, in this embodiment, the function of the flange is to increase the stability of the connection between the fixed flange and the hot isostatic pressing (HIP) equipment. The flange acts on both the fixed flange and the HIP equipment to ensure a tight connection between them. It can be understood that the first flange 109 connects the first fixed flange 105 to one end of the HIP equipment. The second flange 110 connects the second fixed flange 106 to the other end of the HIP equipment.
[0040] In one example, the first fixed flange 105 is provided with a flange fixing groove, a portion of the first flange 109 is installed in the flange fixing groove, and the other portion is connected to one end of the hot isostatic pressing equipment. The second fixed flange 106 is also provided with a flange fixing groove, a portion of the second flange 110 is installed in the flange fixing groove, and the other portion is connected to the other end of the hot isostatic pressing equipment.
[0041] In some embodiments, a first connecting key 107 is disposed at one end of the hot isostatic pressing (HIP) apparatus, and a second connecting key 108 is disposed at the other end of the HIP apparatus. A first sealing ring 111 is disposed between the first flange 109 and the first connecting key 107, and the first sealing ring 111 abuts against the first flange 109 and the first connecting key 107. A second sealing ring 112 is disposed between the second flange 110 and the second connecting key 108, and the second sealing ring 112 abuts against the second flange 110 and the second connecting key 108.
[0042] Specifically, in this embodiment, a first sealing ring 111 is provided between the first flange 109 and the first connecting key 107 to achieve a seal between the first connecting key 107, the first fixed flange 105, the first flange 109, and the hot isostatic pressing equipment. A second sealing ring 112 is provided between the second flange 110 and the second connecting key 108 to achieve a seal between the second connecting key 108, the second fixed flange 106, the second flange 110, and the hot isostatic pressing equipment. Since the first fixed flange 105 is in contact with the heat exchange assembly 102, and the heat exchange assembly 102 includes multiple first heat exchange channels 1021 and multiple second heat exchange channels 1022 through which cooling water flows, a seal between the first fixed flange 105 and the hot isostatic pressing equipment is essential. Similarly, a second sealing ring 112 is provided between the second flange 110 and the second connecting key 108 to achieve sealing between the second connecting key 108, the second fixed flange 106, the second flange 110, and the hot isostatic pressing equipment. Since the second fixed flange 106 is connected to the heat exchange assembly 102, and the heat exchange assembly 102 includes multiple first heat exchange channels 1021 and multiple second heat exchange channels 1022, cooling water flows through the multiple first heat exchange channels 1021 and multiple second heat exchange channels 1022, therefore sealing between the second fixed flange 106 and the hot isostatic pressing equipment is necessary.
[0043] In some embodiments, the first fixed flange 105 is provided with a first water tank 1051, which is connected to a plurality of first heat exchange channels 1021 and a plurality of second heat exchange channels 1022. The second fixed flange 106 is provided with a second water tank 1052, which is connected to a plurality of first heat exchange channels 1021 and a plurality of second heat exchange channels 1022.
[0044] Specifically, in this embodiment, the first water tank 1051 is used to connect an externally independently configured cooling water circulation device with multiple first heat exchange channels 1021, serving as part of a cooling water pipeline. In one example, the first water tank 1051 is also connected to multiple second heat exchange channels 1022, meaning the first water tank 1051 can simultaneously connect to multiple first heat exchange channels 1021 and multiple second heat exchange channels 1022. The second water tank 1052 is used to connect an externally independently configured cooling water circulation device with multiple first heat exchange channels 1021, serving as part of a cooling water pipeline. In one example, the first water tank 1051 is also connected to multiple second heat exchange channels 1022, meaning the first water tank 1051 can simultaneously connect to multiple first heat exchange channels 1021 and multiple second heat exchange channels 1022. A first inlet / outlet water interface is provided on the side of the first fixed flange 105, and the first inlet / outlet water interface is connected to the first water tank 1051 for water inlet or outlet. Similarly, a second water inlet / outlet interface is provided on the side of the second fixed flange 106, which is connected to the second water tank 1052 for water inlet or outlet.
[0045] It is understandable that the first water tank 1051 can serve as both an inlet and an outlet water channel. When the first water tank 1051 serves as an inlet water channel, the second water tank 1052 serves as an outlet water channel; conversely, when the first water tank 1051 serves as an outlet water channel, the second water tank 1052 serves as an inlet water channel. The specific direction is determined by the circulation direction of the external cooling water circulation device connected to it.
[0046] In some embodiments, the protective housing 104 is cylindrical and is composed of a left housing 101 and a right housing 101. Both the left housing 101 and the right housing 101 are semi-cylindrical and are detachably connected.
[0047] Specifically, in this embodiment, the housing 101 of the hot isostatic pressing equipment is cylindrical, and the heat exchange assembly 102 and the wire winding layer 103 are matched and arranged accordingly. Therefore, the protective shell 104 covering the heat exchange assembly 102 and the wire winding layer 103 is cylindrical. In one example, for ease of installation and maintenance, the protective shell 104 is composed of two semi-cylinders of the same size. That is, the protective shell 104 includes a detachably connected left shell 101 and a right shell 101, and the left shell 101 and the right shell 101 are the same in shape and size.
[0048] Of course, in some embodiments, left shell 101 and right shell 101 of different sizes can also be provided, as long as the left shell 101 and right shell 101 are connected to form a cylindrical shape, that is, after the left shell 101 and right shell 101 are installed, they can cover the heat exchange component 102 and the wire winding layer 103 and play a protective role.
[0049] In some embodiments, in order to ensure a stable connection between the protective housing 104 and the first fixed flange 105 and the second fixed flange 106, the protective housing 104 may be welded to the first fixed flange 105 and the second fixed flange 106 after the protective housing 104 is installed.
[0050] In some more specific embodiments, the heat exchange component 102 is made of special steel with excellent mechanical properties that can withstand high pressure. The material of the wound steel wire layer is usually a high-strength steel with high tensile strength and good corrosion resistance. It mainly applies pre-tightening force to the shell 101 and heat exchange component 102 of the hot isostatic pressing equipment to make them bear compressive stress. The material of the protective shell 104 is low-carbon alloy steel that is relatively easy to weld. The material of the flange is low-carbon steel. The material of the first sealing ring 111 and the second sealing ring 112 is ordinary rubber, and various types of sealing rings can be selected. The material of the first connecting key 107 and the second connecting key 108 is high-quality carbon structural steel. The structure is a semi-circular ring structure and requires strong shear strength. The material of the first fixed flange 105 and the second fixed flange 106 is ordinary low-carbon alloy steel. The structure can be a square plate structure with cooling water inlet and outlet channels (i.e., the first water tank 1051 and the second water tank 1052) inside, and water inlet and outlet interfaces are opened on the side.
[0051] In some embodiments, the hot isostatic pressing (HIP) equipment housing 101 is a cylindrical forging with a keyway on the outer side for mounting a first connecting key 107 or a second connecting key 108. The external hexagonal prism heat exchange assembly 102 no longer uses a single cylindrical forging with a slot; instead, it employs multiple hexagonal prism bars (i.e., fixed columns 1023) with a length substantially the same as the HIP equipment housing 101. For the same dimensions, the fixed columns 1023 can ensure a larger flow area, meaning the first heat exchange channel 1021 or the second heat exchange channel 1022 will be larger. The external heat exchange assembly 102 is circumferentially arranged on the outer side of the HIP equipment housing 101 and pre-positioned by spot welding to the second fixed flange 106 to prevent wire entanglement. Excessive offset occurs during the winding of layer 103, followed by pre-tensioned wire winding of layer 103 on the outer surface of the hexagonal prism bar. The wire winding layers 103 are tightly arranged and wound in multiple layers to achieve a pre-tensioning effect on the entire external heat exchange assembly 102 and the thermal isostatic pressing equipment housing 101. Simultaneously, the wire layers also act as a seal for cooling water. The sealed space between the wire layers, the hexagonal prism bar, and the high-pressure thermal isostatic pressing equipment housing 101 serves as a cooling water tank, with a flow area equal to the area enclosed by each hexagonal prism side and the thermal isostatic pressing equipment housing 101. The first fixed flange 105 and the second fixed flange 106 are connected to the thermal isostatic pressing equipment housing 101 via the first connecting key 107 or the second connecting key 108. The first fixed flange 105 and the second fixed flange 106 are connected to the pressure flange using screws. The pressure flange is fixed to the housing 101 of the hot isostatic pressing equipment, thereby achieving axial and circumferential fixation of the housing 101 and the first fixed flange 105 and the second fixed flange 106. The first fixed flange 105 and the second fixed flange 106 are respectively provided with cooling water outlet channels and cooling water inlet channels (i.e., first water tank 1051 and second water tank 1052). Cooling water enters and exits from the end of the fixed column 1023, achieving uniform and stable flow of cooling water and realizing efficient heat exchange. The flow rate of the cooling water is controlled by a temperature sensor to adjust the flow rate to ensure cooling. The water temperature does not exceed the limit, ultimately ensuring that the metal temperature of the high-pressure hot isostatic pressure equipment shell 101 does not exceed the limit. At the same time, the first sealing ring 111 and the second sealing ring 112 are tightly attached to the first connecting key 107 or the second connecting key 108, and achieve a tight seal under the action of the flange, ensuring that the cooling water does not leak. This structure makes it relatively easy to replace the first sealing ring 111 and the second sealing ring 112. The function of the protective shell 104 is to be welded to the outermost side after the steel wire winding layer 103 is wound, so as to achieve mechanical protection of the steel wire winding layer 103. The protective shell 104 is welded to the first fixed flange 105 and the second fixed flange 106 with all weld seams, which can also play a certain sealing role.
[0052] The cooling device provided in this application is located outside the housing 101 of the hot isostatic pressing (HIP) equipment. The heat exchange component 102 is fixed to the outside of the housing 101 by a pre-tensioned wire winding layer 103. The heat exchange component 102 and the housing 101, connected by the wire winding, can be considered as a single unit. The heat exchange component 102 can share the working pressure with the housing 101. This design significantly reduces the thickness of the housing 101, facilitating heat conduction within the housing 101. The sealed space formed between the wire winding layer 103, the heat exchange component 102, and the housing 101 serves as a heat exchange channel. Coolant flows within this channel, transferring heat from the HIP equipment to the outside, achieving rapid cooling. In this design, the cooling device is not limited by the size of the HIP equipment, has a large heat exchange area, high heat exchange efficiency, low processing cost, and simple manufacturing process. Furthermore, the external placement of the cooling device prevents direct contact between leaking cooling water and the electrical control device, avoiding safety hazards. This invention solves the problems of difficult processing of cooling devices, poor cooling effect, and easy risk of leakage in existing technologies.
[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A cooling device applied to a hot isostatic pressing (HIP) apparatus, wherein the housing of the HIP apparatus has thermal conductivity, characterized in that, The device includes: A heat exchange assembly is disposed around the outer side of the housing and forms multiple first heat exchange channels with the outer wall of the housing. Coolant flows through the multiple first heat exchange channels. The heat exchange assembly includes multiple fixed columns arranged in parallel. Two adjacent fixed columns form a first heat exchange channel with the outer wall of the housing. A wire winding layer surrounds the heat exchange assembly, used to fix the heat exchange assembly and apply a preload to the housing and the heat exchange assembly, placing them under pressure.
2. The cooling device as described in claim 1, characterized in that, The wire winding layer and the heat exchange assembly form multiple second heat exchange channels, through which coolant flows; wherein, the wire winding layer and the surfaces of the two adjacent fixed columns form a second heat exchange channel.
3. The cooling device as described in claim 2, characterized in that, Also includes: Protective housing, first fixed flange, and second fixed flange; Both ends of the wire winding layer are fixedly connected to the first fixed flange and the second fixed flange, respectively. The protective shell covers the wire winding layer, and both ends of the protective shell are fixedly connected to the first fixing flange and the second fixing flange, respectively.
4. The cooling device as described in claim 3, characterized in that, The first fixed flange is located at one end of the hot isostatic pressing equipment, and the second fixed flange is located at the other end of the hot isostatic pressing equipment.
5. The cooling device as described in claim 4, characterized in that, It also includes a first connecting key and a second connecting key, wherein the first fixed flange and the hot isostatic pressing device are connected by the first connecting key, and the second fixed flange and the hot isostatic pressing device are connected by the second connecting key.
6. The cooling device as described in claim 5, characterized in that, It also includes the first and second flanges; The first pressure flange is disposed on the first fixed flange and is in contact with one end of the hot isostatic pressing equipment; The second pressure flange is disposed on the second fixed flange and is in contact with the other end of the hot isostatic pressing equipment.
7. The cooling device as claimed in claim 6, characterized in that, The first connecting key is located at one end of the hot isostatic pressing equipment, and the second connecting key is located at the other end of the hot isostatic pressing equipment. A first sealing ring is provided between the first flange and the first connecting key, and the first sealing ring abuts against the first flange and the first connecting key. A second sealing ring is provided between the second flange and the second connecting key, and the second sealing ring abuts against the second flange and the second connecting key.
8. The cooling device as described in claim 6, characterized in that, The first fixed flange is provided with a first water tank, which is connected to the plurality of first heat exchange channels and the plurality of second heat exchange channels; The second fixed flange is provided with a second water tank, which is connected to the plurality of first heat exchange channels and the plurality of second heat exchange channels.
9. The cooling device as claimed in claim 8, characterized in that, The first fixed flange has a first water inlet / outlet interface on its side, and the first water inlet / outlet interface is connected to the first water tank; The second fixed flange has a second water inlet / outlet interface on its side, and the second water inlet / outlet interface is connected to the second water tank.
10. The cooling device as claimed in claim 3, characterized in that, The protective outer shell is cylindrical and is composed of a left shell and a right shell. Both the left and right housings are semi-cylindrical, and the left and right housings are detachably connected.