Cooling device and cooling method for a hot isostatic pressing apparatus

Abstract

The application relates to a cooling device and a cooling method for a hot isostatic pressing device, and relates to the field of device cooling, and comprises a cooling medium supply module, a cooling end connected with the hot isostatic pressing device; the cooling medium supply module is connected with the cooling end; the cooling medium supply module is provided with an inert gas replacement module and a pressure stabilizing module; the cooling medium supply module, the cooling end, the inert gas replacement module and the pressure stabilizing module are connected with a control module. The cooling device provided by the application optimizes the configuration of the device, reduces the dissolved oxygen in the cooling medium to below 0.5 mg / L through the inert gas replacement module and the pressure stabilizing module, reduces the electrochemical corrosion rate by more than 90% compared with the existing deoxygenation scheme (dissolved oxygen 8-10 mg / L), and meanwhile, the cooling medium supply module can match multiple working conditions of the hot isostatic pressing device, so that the device has good use stability.

Description

Technical Field

[0001] This invention relates to the field of equipment cooling, and more specifically to a cooling device and cooling method for hot isostatic pressing equipment. Background Technology

[0002] Industrial closed-loop cooling systems are the core support system for high-end manufacturing equipment. For high-pressure and high-temperature equipment, the stability of the cooling system directly determines the equipment life and production safety. Currently, the global industrial cooling industry generally adopts standardized cooling solutions.

[0003] However, high-temperature water environments result in severe electrochemical corrosion, frequent equipment maintenance, high energy consumption, and a significant risk of freezing and cracking at low temperatures. Hot isostatic presses, as a typical example of this extreme operating condition, exhibit particularly prominent problems with their cooling systems, as detailed below:

[0004] ① Existing industrial closed-loop cooling systems lack universally applicable formulas for high-temperature, high-pressure, and long-cycle operating conditions. Long-term operation of universal cooling water in a closed-loop environment can easily lead to problems such as pipe pitting, equipment corrosion, and heat exchanger scaling, which seriously affect equipment lifespan and operational safety.

[0005] ② The traditional concentration of ethylene glycol cooling water in the industry is 40-60%, which presents an inherent technical contradiction: increasing the concentration can enhance the antifreeze and antiboiling capabilities, but it will lead to a significant increase in the viscosity of the medium, a surge in the load on the circulating pump, and a significant increase in system energy consumption; while reducing the concentration will result in insufficient antifreeze and antiboiling capabilities, failing to meet the dual requirements of equipment under low-temperature start-up and high-temperature operation conditions.

[0006] ③ Conventional water-based rust-preventive cooling water only provides short-term rust prevention and has no antifreeze or anti-boiling capabilities. In low-temperature environments, it is prone to freezing and cracking of high-pressure pipelines; under the agitation of high-temperature pumps, it is prone to vaporization and bubble generation, causing pump cavitation and cooling failure, which cannot meet the reliability requirements of continuous industrial production.

[0007] ④ The industry currently only uses inert gases for the protection of equipment process chambers, and has never systematically applied them to the continuous deoxygenation protection of closed cooling water systems. As a result, the dissolved oxygen content of cooling water remains high for a long time, and electrochemical corrosion has become a common problem in the industry.

[0008] ⑤ Existing technologies lack a dual-condition adaptation system, which cannot take into account both long-term mass production and short-term debugging scenarios, resulting in short equipment maintenance cycles, frequent water changes, and high production costs.

[0009] ⑥ Existing technologies lack a standardized closed-loop control system for water quality parameters, making it impossible to stably control key indicators such as dissolved oxygen, conductivity, and pH value. This results in poor operational stability of the cooling system and short equipment lifespan.

[0010] In summary, existing cooling processes for high-temperature conditions still suffer from drawbacks such as limited operating conditions, high-temperature corrosion, and poor stability. Summary of the Invention

[0011] In view of the problems existing in the prior art, the purpose of the present invention is to provide a cooling device and cooling method for hot isostatic pressing equipment, so as to solve the defects of existing cooling processes under high temperature conditions, such as single operating conditions, high temperature corrosion, and poor stability.

[0012] To achieve this objective, the present invention adopts the following technical solution:

[0013] In a first aspect, the present invention provides a cooling device for a hot isostatic pressing apparatus, the cooling device comprising:

[0014] Cooling medium supply module, the cooling end of which is connected to the hot isostatic pressing equipment;

[0015] The cooling medium supply module is connected to the cooling end;

[0016] The cooling medium supply module is equipped with an inert gas replacement module and a voltage stabilizing module;

[0017] The cooling medium supply module, cooling end, inert gas replacement module, and voltage stabilization module are connected to the control module.

[0018] The cooling device provided by this invention, by optimizing the equipment configuration, reduces the dissolved oxygen in the cooling medium to below 0.5 mg / L by using an inert gas replacement module and a pressure stabilizing module. This reduces the electrochemical corrosion rate by more than 90% compared to existing oxygen-free solutions (dissolved oxygen 8-10 mg / L). At the same time, by configuring a cooling medium supply module, it can achieve multi-condition matching of the hot isostatic pressing equipment and has good operational stability.

[0019] As a preferred technical solution of the present invention, the cooling medium supply module includes: an antifreeze cooling medium supply submodule and a commissioning condition cooling medium supply submodule.

[0020] As a preferred technical solution of the present invention, the inert gas replacement module includes: an inert gas supply end and a delivery pipeline.

[0021] Preferably, the delivery pipeline is connected to the cooling medium supply module.

[0022] Preferably, the pressure stabilizing module includes a gas pressure stabilizing device.

[0023] Preferably, the voltage stabilizing module is disposed on the delivery pipeline.

[0024] As a preferred embodiment of the present invention, the cooling medium supply module is connected to the inlet and outlet of the cooling end, respectively.

[0025] As a preferred technical solution of the present invention, the cooling device is equipped with dissolved oxygen monitoring equipment, conductivity monitoring equipment and pH value monitoring equipment.

[0026] In a second aspect, the present invention provides a cooling method for a hot isostatic pressing apparatus, the cooling method comprising:

[0027] The operating mode of the hot isostatic pressing equipment is obtained, and the cooling medium supply module is controlled to supply the corresponding cooling medium according to the operating mode.

[0028] The inert gas replacement module replaces the cooling medium supply module, and then the voltage stabilizing module is controlled to operate in a steady state.

[0029] As a preferred technical solution of the present invention, the cooling medium includes: an antifreeze cooling medium and a commissioning cooling medium.

[0030] Preferably, the antifreeze cooling medium comprises, by mass percentage: 25-35% ethylene glycol, with the remainder being water.

[0031] Preferably, the antifreeze cooling medium contains 0.01-0.1% (by total mass) of defoamer from ethylene glycol and water.

[0032] Preferably, the pH value of the antifreeze cooling medium is 8-9.

[0033] Preferably, the cooling medium for the commissioning conditions comprises, by weight, 1-2 parts of water-based rust inhibitor and 30-50 parts of water.

[0034] Preferably, if the operating mode is a working mode, then the antifreeze cooling medium is selected; if the operating mode is a debugging mode, then the debugging operating mode cooling medium is selected.

[0035] As a preferred embodiment of the present invention, the flow rate of the inert gas during the displacement is controlled to be 1-2 L / min.

[0036] Preferably, the replacement time is 5-10 minutes.

[0037] As a preferred technical solution of the present invention, the pressure of the inert gas is controlled to be 0.02-0.05 MPa during steady-state operation.

[0038] Preferably, the flow rate of the inert gas during steady-state operation is controlled to be 0.5-2 L / min.

[0039] As a preferred technical solution of the present invention, the dissolved oxygen of the cooling medium is controlled to be ≤0.5mg / L during steady-state operation.

[0040] Preferably, during steady-state operation, the conductivity of the cooling medium at 25°C is controlled to be ≤5μS / cm.

[0041] Compared with existing technical solutions, the present invention has the following beneficial effects:

[0042] (1) Full coverage of working conditions: Existing technical solutions have single functions and cannot adapt to low temperature environment or short-term debugging scenarios; the dual formula system of this invention takes into account both mass production and constant temperature debugging, and achieves full coverage of usage scenarios.

[0043] (2) Enhanced operational stability: Precise temperature range control eliminates the risk of low-temperature freezing and cracking, and high-temperature cavitation boiling, significantly reducing the equipment failure rate.

[0044] (3) It solves the long-standing technical contradiction in the industry: the low-concentration ethylene glycol formula meets the requirements of -16℃ antifreeze and 107℃ antiboiling, and the viscosity is greatly reduced. The load of the circulating pump is reduced by more than 30% compared with the 40-60% high-concentration scheme, and the long-term energy consumption is significantly reduced.

[0045] (4) Solving the problem of high-temperature corrosion at its root: By continuously deoxygenating under micro-positive pressure with inert gas, the dissolved oxygen is reduced to below 0.5 mg / L, which reduces the electrochemical corrosion rate by more than 90% compared with existing deoxygenation methods (dissolved oxygen 8-10 mg / L). Existing technologies lack effective deoxygenation methods, which is the most significant technical advantage of this invention.

[0046] (5) Significantly improved service life: Existing technology requires water replacement after about 6 months of water quality deterioration, while the long-term system of this invention can be maintained for more than 4 years without replacement, reducing operation and maintenance costs by more than 70%. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of a cooling device for a hot isostatic pressing equipment provided in an embodiment of the present invention.

[0048] In the diagram: 110-Cooling medium supply module, 111-Antifreeze cooling medium supply sub-module, 112-Commissioning condition cooling medium supply sub-module, 120-Cooling end, 130-Inert gas replacement module, 140-Voltage stabilizing module, 200-Hot isostatic pressing equipment, 300-Control module;

[0049] The dashed lines represent data connection relationships.

[0050] The present invention will now be described in further detail. However, the examples described below are merely simplified examples of the present invention and do not represent or limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims. Detailed Implementation

[0051] To better illustrate the present invention and facilitate understanding of its technical solutions, typical but non-limiting embodiments of the present invention are as follows:

[0052] Currently, high-temperature water environments suffer from severe electrochemical corrosion, frequent equipment maintenance, high energy consumption, and a high risk of low-temperature freezing and cracking. Hot isostatic presses (HIPs) are a typical example of this extreme operating condition. Based on this, this invention optimizes the cooling equipment design of HIPs to address the shortcomings of single operating conditions, high-temperature corrosion, and poor stability while ensuring effective cooling. Specifically:

[0053] I. This embodiment provides a cooling device for hot isostatic pressing equipment, such as... Figure 1 As shown, the cooling device includes:

[0054] Cooling medium supply module 110, cooling end 120 connected to hot isostatic pressing equipment 200;

[0055] The cooling medium supply module 110 is connected to the cooling end 120;

[0056] The cooling medium supply module 110 is equipped with an inert gas replacement module 130 and a voltage stabilizing module 140;

[0057] The cooling medium supply module 110, cooling end 120, inert gas replacement module 130 and voltage stabilizing module 140 are connected to the control module 300.

[0058] In this invention, the cooling medium supply module 110 includes: an antifreeze cooling medium supply submodule 111 and a commissioning condition cooling medium supply submodule 112.

[0059] In this invention, the cooling medium supply module 110 is used to supply different cooling media according to the operating conditions of the hot isostatic pressing equipment 200, so as to achieve adaptive matching of multiple working modes.

[0060] In this invention, the cooling medium supply module 110 includes a cooling medium storage device, a delivery pump, and related connecting pipelines.

[0061] In this invention, the cooling end 120 can be reasonably configured according to the cooling requirements of the hot isostatic pressing equipment 200 and conventional requirements in the field, with the aim of meeting the cooling requirements of the hot isostatic pressing equipment 200.

[0062] In this invention, the inert gas replacement module 130 includes an inert gas supply end and a delivery pipeline.

[0063] In this invention, the inert gas supply end includes a gas source, a delivery pump, and other equipment.

[0064] In this invention, the delivery pipeline is connected to the cooling medium supply module 110.

[0065] In this invention, the voltage stabilizing module 140 includes a gas voltage stabilizing device.

[0066] In this invention, the voltage stabilizing module 140 is disposed on the delivery pipeline.

[0067] In this invention, the cooling medium supply module 110 is connected to the inlet and outlet of the cooling end 120, respectively.

[0068] In this invention, the cooling medium supply module 110 is connected to the inlet and outlet of the cooling end 120 respectively to form a closed loop, thereby achieving efficient utilization of the coolant. During the cooling process, the temperature of the cooling medium can be controlled by configuring a temperature control device on the delivery pipeline, thereby improving the control accuracy of the cooling process.

[0069] In this invention, the cooling device is equipped with dissolved oxygen monitoring equipment, conductivity monitoring equipment and pH value monitoring equipment.

[0070] In this invention, multiple dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices can be selected and installed according to actual needs, and configured at different flow points of the coolant, thereby enabling the monitoring of relevant parameters of the cooling medium at different locations, and ensuring that the water quality of the cooling medium meets the design conditions.

[0071] In this invention, the cooling device also includes pipes and valves necessary for connection control, wherein the valves can be selected as electrically controlled valves or the like according to actual needs, and can be connected to the control module 300 to achieve linkage control.

[0072] In this invention, the control module 300 can be selected as an industrial computer, PLC controller, or other control device capable of performing logical judgment and control.

[0073] In this invention, the control module 300 can also incorporate artificial intelligence algorithms to perform logical optimization of the control process, thereby improving the linkage control efficiency and accuracy of the cooling device and the hot isostatic pressing equipment 200, which is conducive to achieving efficient cooling and temperature control.

[0074] II. This embodiment provides a cooling method for a hot isostatic pressing (HIP) device, the cooling method comprising:

[0075] The operating mode of the hot isostatic pressing equipment is obtained, and the cooling medium supply module is controlled to supply the corresponding cooling medium according to the operating mode.

[0076] The inert gas replacement module replaces the cooling medium supply module, and then the voltage stabilizing module is controlled to operate in a steady state.

[0077] In this invention, the cooling medium includes: an antifreeze cooling medium and a commissioning cooling medium.

[0078] In this invention, the antifreeze cooling medium comprises, by mass percentage, 25-35% ethylene glycol, with the remainder being water.

[0079] In this invention, the ethylene glycol in the antifreeze cooling medium is 25-35% by mass percentage, for example, it can be 25%, 25.5%, 26%, 26.5%, 27%, 27.5%, 28%, 28.5%, 29%, 29.5%, 30%, 30.5%, 31%, 31.5%, 32%, 32.5%, 33%, 33.5%, 34%, 34.5%, or 35%, etc., but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0080] In this invention, the antifreeze cooling medium contains 0.01-0.1% of an antifoaming agent by total mass of ethylene glycol and water. For example, the agent may be 0.01%, 0.0145%, 0.019%, 0.0235%, 0.028%, 0.0325%, 0.037%, 0.0415%, 0.046%, 0.0505%, 0.055%, 0.0595%, 0.064%, 0.0685%, 0.073%, 0.0775%, 0.082%, 0.0865%, 0.091%, 0.0955%, or 0.1%, but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0081] In this invention, the defoamer can be an organosilicon defoamer, specifically synthesized according to existing technology or a commercially available product, such as AFE-1410 defoamer.

[0082] In this invention, the pH value of the antifreeze cooling medium is 8-9, for example, it can be 8, 8.05, 8.1, 8.15, 8.2, 8.25, 8.3, 8.35, 8.4, 8.45, 8.5, 8.55, 8.6, 8.65, 8.7, 8.75, 8.8, 8.85, 8.9, 8.95 or 9, but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0083] In this invention, the cooling medium for the commissioning condition comprises, by weight, 1-2 parts of water-based rust inhibitor and 30-50 parts of water.

[0084] In this invention, the water-based rust inhibitor in the cooling medium during commissioning is 1-2 parts by weight, for example, it can be 1 part, 1.05 parts, 1.1 parts, 1.15 parts, 1.2 parts, 1.25 parts, 1.3 parts, 1.35 parts, 1.4 parts, 1.45 parts, 1.5 parts, 1.55 parts, 1.6 parts, 1.65 parts, 1.7 parts, 1.75 parts, 1.8 parts, 1.85 parts, 1.9 parts, 1.95 parts, or 2 parts, but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0085] In this invention, the water-based rust inhibitor can be prepared according to existing technology or can be purchased directly from commercially available products, such as THIF118 water-based rust inhibitor.

[0086] In this invention, the water in the cooling medium during the commissioning process is 30-50 parts by weight, for example, it can be 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 ​​parts, 49 parts, or 50 parts, but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0087] Preferably, if the operating mode is a working mode, then the antifreeze cooling medium is selected; if the operating mode is a debugging mode, then the debugging operating mode cooling medium is selected.

[0088] In this invention, the flow rate of the inert gas during the displacement is controlled to be 1-2 L / min, for example, it can be 1 L / min, 1.05 L / min, 1.1 L / min, 1.15 L / min, 1.2 L / min, 1.25 L / min, 1.3 L / min, 1.35 L / min, 1.4 L / min, 1.45 L / min, 1.5 L / min, 1.55 L / min, 1.6 L / min, 1.65 L / min, 1.7 L / min, 1.75 L / min, 1.8 L / min, 1.85 L / min, 1.9 L / min, 1.95 L / min, or 2 L / min, but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0089] In this invention, inert gas refers to a gas that will not adversely affect the cooling system and coolant, such as nitrogen, argon, helium, neon, etc.

[0090] In this invention, the replacement time is 5-10 minutes, for example, it can be 5 minutes, 5.25 minutes, 5.5 minutes, 5.75 minutes, 6 minutes, 6.25 minutes, 6.5 minutes, 6.75 minutes, 7 minutes, 7.25 minutes, 7.5 minutes, 7.75 minutes, 8 minutes, 8.25 minutes, 8.5 minutes, 8.75 minutes, 9 minutes, 9.25 minutes, 9.5 minutes, 9.75 minutes, or 10 minutes, but is not limited to the listed values. Other unlisted values ​​within this range are also acceptable.

[0091] In this invention, the pressure of the inert gas during steady-state operation is controlled to be 0.02-0.05 MPa, for example, it can be 0.02 MPa, 0.0215 MPa, 0.023 MPa, 0.0245 MPa, 0.026 MPa, 0.0275 MPa, 0.029 MPa, 0.0305 MPa, 0.032 MPa, 0.0335 MPa, 0.035 MPa, 0.0365 MPa, 0.038 MPa, 0.0395 MPa, 0.041 MPa, 0.0425 MPa, 0.044 MPa, 0.0455 MPa, 0.047 MPa, 0.0485 MPa, or 0.05 MPa, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0092] In this invention, the flow rate of the inert gas during steady-state operation is controlled to be 0.5-2 L / min, for example, it can be 0.5 L / min, 0.575 L / min, 0.65 L / min, 0.725 L / min, 0.8 L / min, 0.875 L / min, 0.95 L / min, 1.025 L / min, 1.1 L / min, 1.175 L / min, 1.25 L / min, 1.325 L / min, 1.4 L / min, 1.475 L / min, 1.55 L / min, 1.625 L / min, 1.7 L / min, 1.775 L / min, 1.85 L / min, 1.925 L / min, or 2 L / min, but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0093] In this invention, the dissolved oxygen of the cooling medium during steady-state operation is controlled to be ≤0.5 mg / L. For example, it can be 0.5 mg / L, 0.48 mg / L, 0.46 mg / L, 0.44 mg / L, 0.42 mg / L, 0.4 mg / L, 0.38 mg / L, 0.36 mg / L, 0.34 mg / L, 0.32 mg / L, 0.3 mg / L, 0.28 mg / L, 0.26 mg / L, 0.24 mg / L, 0.22 mg / L, 0.2 mg / L, 0.18 mg / L, 0.16 mg / L, 0.14 mg / L, 0.12 mg / L, or 0.1 mg / L, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0094] In this invention, the conductivity of the cooling medium at 25°C during steady-state operation is controlled to be ≤5μS / cm. For example, it can be 5μS / cm, 4.8μS / cm, 4.6μS / cm, 4.4μS / cm, 4.2μS / cm, 4μS / cm, 3.8μS / cm, 3.6μS / cm, 3.4μS / cm, 3.2μS / cm, 3μS / cm, 2.8μS / cm, 2.6μS / cm, 2.4μS / cm, 2.2μS / cm, 2.0μS / cm, 1.8μS / cm, 1.6μS / cm, 1.4μS / cm, 1.2μS / cm, or 1μS / cm, etc., but is not limited to the listed values. Other unlisted values ​​within this range also meet the requirements.

[0095] III. To illustrate the effects of the cooling device for hot isostatic pressing equipment provided by the present invention, the following example is used for explanation:

[0096] Example 1

[0097] This embodiment provides a cooling device for a hot isostatic pressing (HIP) equipment, the cooling device comprising:

[0098] Cooling medium supply module, the cooling end of which is connected to the hot isostatic pressing equipment;

[0099] The cooling medium supply module is connected to the cooling end;

[0100] The cooling medium supply module is equipped with an inert gas replacement module and a voltage stabilizing module;

[0101] The cooling medium supply module, cooling end, inert gas replacement module, and voltage stabilizing module are connected to the control module;

[0102] The cooling medium supply module includes: an antifreeze cooling medium supply submodule and a commissioning condition cooling medium supply submodule;

[0103] The cooling medium supply module is used to supply different cooling media according to the operating conditions of the hot isostatic pressing equipment, so as to achieve adaptive matching of multiple working modes;

[0104] The cooling medium supply module includes a cooling medium storage device, a delivery pump, and related connecting pipelines;

[0105] The cooling end can be configured reasonably according to the cooling requirements of the hot isostatic pressing equipment and the conventional requirements in this field, with the aim of meeting the cooling needs of the hot isostatic pressing equipment.

[0106] The inert gas replacement module includes: an inert gas supply end and a delivery pipeline;

[0107] The inert gas supply end includes a gas source and a delivery pump;

[0108] The delivery pipeline is connected to the cooling medium supply module;

[0109] The voltage stabilizing module includes a gas voltage stabilizing device;

[0110] The voltage stabilizing module is installed on the delivery pipeline;

[0111] The cooling medium supply module is connected to the inlet and outlet of the cooling end, respectively.

[0112] The cooling medium supply module is connected to the inlet and outlet of the cooling end to form a closed loop, thereby achieving efficient utilization of the coolant. During the cooling process, the temperature of the cooling medium can be controlled by configuring a temperature control device on the delivery pipeline, thereby improving the control accuracy of the cooling process.

[0113] The cooling device is equipped with dissolved oxygen monitoring equipment, conductivity monitoring equipment and pH value monitoring equipment.

[0114] In this invention, multiple dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices can be selected and installed according to actual needs, and configured at different flow points of the coolant, thereby enabling the monitoring of relevant parameters of the cooling medium at different locations, and ensuring that the water quality of the cooling medium can meet the design conditions. In this embodiment, dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices are respectively installed at the outlet and inlet of the cooling medium supply module.

[0115] The specific usage process is as follows:

[0116] The operating mode of the hot isostatic pressing equipment is obtained, and the cooling medium supply module is controlled to supply the corresponding cooling medium according to the operating mode.

[0117] The inert gas replacement module replaces the cooling medium supply module, and then the voltage stabilizing module is controlled to operate in a steady state.

[0118] The cooling medium includes: antifreeze cooling medium and test condition cooling medium; if the operating mode is the working mode, then the antifreeze cooling medium is selected; if the operating mode is the test mode, then the test condition cooling medium is selected.

[0119] The antifreeze cooling medium comprises, by weight percentage: 30% ethylene glycol, with the remainder being water; the antifreeze cooling medium contains 0.05% AFE-1410 defoamer of the total weight of ethylene glycol and water; the pH value of the antifreeze cooling medium is 8.5.

[0120] The cooling medium for the commissioning conditions comprises, by weight, 1 part water-based rust inhibitor and 40 parts water;

[0121] The flow rate of the inert gas (helium) during the displacement was controlled at 1.5 L / min; the displacement time was 10 min.

[0122] During steady-state operation, the pressure of the inert gas is controlled at 0.03 MPa; the flow rate of the inert gas is controlled at 1 L / min; the dissolved oxygen of the cooling medium is controlled at ≤0.5 mg / L; and the conductivity of the cooling medium at 25℃ is controlled at ≤5 μS / cm.

[0123] Example 2

[0124] This embodiment provides a cooling device for a hot isostatic pressing (HIP) equipment, the cooling device comprising:

[0125] Cooling medium supply module, the cooling end of which is connected to the hot isostatic pressing equipment;

[0126] The cooling medium supply module is connected to the cooling end;

[0127] The cooling medium supply module is equipped with an inert gas replacement module and a voltage stabilizing module;

[0128] The cooling medium supply module, cooling end, inert gas replacement module, and voltage stabilizing module are connected to the control module;

[0129] The cooling medium supply module includes: an antifreeze cooling medium supply submodule and a commissioning condition cooling medium supply submodule;

[0130] The cooling medium supply module is used to supply different cooling media according to the operating conditions of the hot isostatic pressing equipment, so as to achieve adaptive matching of multiple working modes;

[0131] The cooling medium supply module includes a cooling medium storage device, a delivery pump, and related connecting pipelines;

[0132] The cooling end can be configured reasonably according to the cooling requirements of the hot isostatic pressing equipment and the conventional requirements in this field, with the aim of meeting the cooling needs of the hot isostatic pressing equipment.

[0133] The inert gas replacement module includes: an inert gas supply end and a delivery pipeline;

[0134] The inert gas supply end includes a gas source and a delivery pump;

[0135] The delivery pipeline is connected to the cooling medium supply module;

[0136] The voltage stabilizing module includes a gas voltage stabilizing device;

[0137] The voltage stabilizing module is installed on the delivery pipeline;

[0138] The cooling medium supply module is connected to the inlet and outlet of the cooling end, respectively.

[0139] The cooling medium supply module is connected to the inlet and outlet of the cooling end to form a closed loop, thereby achieving efficient utilization of the coolant. During the cooling process, the temperature of the cooling medium can be controlled by configuring a temperature control device on the delivery pipeline, thereby improving the control accuracy of the cooling process.

[0140] The cooling device is equipped with dissolved oxygen monitoring equipment, conductivity monitoring equipment and pH value monitoring equipment.

[0141] In this invention, multiple dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices can be selected and installed according to actual needs, and configured at different flow points of the coolant, thereby enabling the monitoring of relevant parameters of the cooling medium at different locations, and ensuring that the water quality of the cooling medium can meet the design conditions. In this embodiment, dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices are respectively installed at the outlet and inlet of the cooling medium supply module.

[0142] The specific usage process is as follows:

[0143] The operating mode of the hot isostatic pressing equipment is obtained, and the cooling medium supply module is controlled to supply the corresponding cooling medium according to the operating mode.

[0144] The inert gas replacement module replaces the cooling medium supply module, and then the voltage stabilizing module is controlled to operate in a steady state.

[0145] The cooling medium includes: antifreeze cooling medium and test condition cooling medium; if the operating mode is the working mode, then the antifreeze cooling medium is selected; if the operating mode is the test mode, then the test condition cooling medium is selected.

[0146] The antifreeze cooling medium comprises, by mass percentage: 25% ethylene glycol, with the remainder being water; the antifreeze cooling medium contains 0.01% AFE-1410 defoamer of the total mass of ethylene glycol and water; the pH value of the antifreeze cooling medium is 8.

[0147] The cooling medium for the commissioning conditions comprises, by weight, 1.5 parts water-based rust inhibitor and 30 parts water;

[0148] The flow rate of the inert gas (helium) during the displacement is controlled at 1 L / min; the displacement time is 10 min.

[0149] During steady-state operation, the pressure of the inert gas is controlled at 0.02 MPa; the flow rate of the inert gas is controlled at 2 L / min; the dissolved oxygen of the cooling medium is controlled at ≤0.5 mg / L; and the conductivity of the cooling medium at 25℃ is controlled at ≤5 μS / cm.

[0150] Example 3

[0151] This embodiment provides a cooling device for a hot isostatic pressing (HIP) equipment, the cooling device comprising:

[0152] Cooling medium supply module, the cooling end of which is connected to the hot isostatic pressing equipment;

[0153] The cooling medium supply module is connected to the cooling end;

[0154] The cooling medium supply module is equipped with an inert gas replacement module and a voltage stabilizing module;

[0155] The cooling medium supply module, cooling end, inert gas replacement module, and voltage stabilizing module are connected to the control module;

[0156] The cooling medium supply module includes: an antifreeze cooling medium supply submodule and a commissioning condition cooling medium supply submodule;

[0157] The cooling medium supply module is used to supply different cooling media according to the operating conditions of the hot isostatic pressing equipment, so as to achieve adaptive matching of multiple working modes;

[0158] The cooling medium supply module includes a cooling medium storage device, a delivery pump, and related connecting pipelines;

[0159] The cooling end can be configured reasonably according to the cooling requirements of the hot isostatic pressing equipment and the conventional requirements in this field, with the aim of meeting the cooling needs of the hot isostatic pressing equipment.

[0160] The inert gas replacement module includes: an inert gas supply end and a delivery pipeline;

[0161] The inert gas supply end includes a gas source and a delivery pump;

[0162] The delivery pipeline is connected to the cooling medium supply module;

[0163] The voltage stabilizing module includes a gas voltage stabilizing device;

[0164] The voltage stabilizing module is installed on the delivery pipeline;

[0165] The cooling medium supply module is connected to the inlet and outlet of the cooling end, respectively.

[0166] The cooling medium supply module is connected to the inlet and outlet of the cooling end to form a closed loop, thereby achieving efficient utilization of the coolant. During the cooling process, the temperature of the cooling medium can be controlled by configuring a temperature control device on the delivery pipeline, thereby improving the control accuracy of the cooling process.

[0167] The cooling device is equipped with dissolved oxygen monitoring equipment, conductivity monitoring equipment and pH value monitoring equipment.

[0168] In this invention, multiple dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices can be selected and installed according to actual needs, and configured at different flow points of the coolant, thereby enabling the monitoring of relevant parameters of the cooling medium at different locations, and ensuring that the water quality of the cooling medium can meet the design conditions. In this embodiment, dissolved oxygen monitoring devices, conductivity monitoring devices, and pH monitoring devices are respectively installed at the outlet and inlet of the cooling medium supply module.

[0169] The specific usage process is as follows:

[0170] The operating mode of the hot isostatic pressing equipment is obtained, and the cooling medium supply module is controlled to supply the corresponding cooling medium according to the operating mode.

[0171] The inert gas replacement module replaces the cooling medium supply module, and then the voltage stabilizing module is controlled to operate in a steady state.

[0172] The cooling medium includes: antifreeze cooling medium and test condition cooling medium; if the operating mode is the working mode, then the antifreeze cooling medium is selected; if the operating mode is the test mode, then the test condition cooling medium is selected.

[0173] The antifreeze cooling medium comprises, by mass percentage: 35% ethylene glycol, with the remainder being water; the antifreeze cooling medium contains 0.1% AFE-1410 defoamer of the total mass of ethylene glycol and water; the pH value of the antifreeze cooling medium is 9.

[0174] The cooling medium for the commissioning conditions includes, by weight, 2 parts water-based rust inhibitor and 50 parts water;

[0175] The flow rate of the inert gas (helium) during the displacement is controlled at 2 L / min; the displacement time is 5 min.

[0176] During steady-state operation, the pressure of the inert gas is controlled at 0.05 MPa; the flow rate of the inert gas is controlled at 0.5 L / min; the dissolved oxygen of the cooling medium is controlled at ≤0.2 mg / L; and the conductivity of the cooling medium at 25℃ is controlled at ≤2 μS / cm.

[0177] The cooling process described in the above embodiments was tested on 100-200MPa hot isostatic presses, and all of them were able to operate continuously and stably for more than 48 months. This demonstrates that the cooling device provided by the present invention, through optimized equipment configuration, reduces the dissolved oxygen in the cooling medium to below 0.5mg / L by means of an inert gas replacement module and a pressure stabilization module. This reduces the electrochemical corrosion rate by more than 90% compared to existing oxygen-free solutions (dissolved oxygen 8-10mg / L). At the same time, by configuring a cooling medium supply module, it can achieve multi-condition matching of the hot isostatic press equipment and has good operational stability.

[0178] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0179] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0180] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A cooling device for a hot isostatic pressing (HIP) apparatus, characterized in that, The cooling device includes: Cooling medium supply module, the cooling end of which is connected to the hot isostatic pressing equipment; The cooling medium supply module is connected to the cooling end; The cooling medium supply module is equipped with an inert gas replacement module and a voltage stabilizing module; The cooling medium supply module, cooling end, inert gas replacement module, and voltage stabilization module are connected to the control module.

2. The cooling device as described in claim 1, characterized in that, The cooling medium supply module includes: an antifreeze cooling medium supply submodule and a commissioning condition cooling medium supply submodule.

3. The cooling device as described in claim 1, characterized in that, The inert gas replacement module includes: an inert gas supply end and a delivery pipeline; Preferably, the delivery pipeline is connected to the cooling medium supply module; Preferably, the voltage stabilizing module includes a gas voltage stabilizing device; Preferably, the voltage stabilizing module is disposed on the delivery pipeline.

4. The cooling device as described in claim 1, characterized in that, The cooling medium supply module is connected to the inlet and outlet of the cooling end, respectively.

5. The cooling device as described in claim 1, characterized in that, The cooling device is equipped with dissolved oxygen monitoring equipment, conductivity monitoring equipment and pH value monitoring equipment.

6. A cooling method for a hot isostatic pressing device, characterized in that, The cooling method includes: The operating mode of the hot isostatic pressing equipment is obtained, and the cooling medium supply module is controlled to supply the corresponding cooling medium according to the operating mode. The inert gas replacement module replaces the cooling medium supply module, and then the voltage stabilizing module is controlled to operate in a steady state.

7. The cooling method as described in claim 6, characterized in that, The cooling medium includes: antifreeze cooling medium and commissioning condition cooling medium; Preferably, the antifreeze cooling medium comprises, by mass percentage: 25-35% ethylene glycol, with the remainder being water; Preferably, the antifreeze cooling medium contains 0.01-0.1% (by total mass) of defoamer from ethylene glycol and water; Preferably, the pH value of the antifreeze cooling medium is 8-9; Preferably, the cooling medium for the commissioning condition comprises, by weight, 1-2 parts of water-based rust inhibitor and 30-50 parts of water; Preferably, if the operating mode is a working mode, then the antifreeze cooling medium is selected; if the operating mode is a debugging mode, then the debugging operating mode cooling medium is selected.

8. The cooling method as described in claim 6, characterized in that, The flow rate of the inert gas during the displacement is controlled to be 1-2 L / min; Preferably, the replacement time is 5-10 minutes.

9. The cooling method as described in claim 6, characterized in that, During steady-state operation, the pressure of the inert gas is controlled at 0.02-0.05 MPa; Preferably, the flow rate of the inert gas during steady-state operation is controlled to be 0.5-2 L / min.

10. The cooling method as described in claim 6, characterized in that, During steady-state operation, the dissolved oxygen in the cooling medium is controlled to be ≤0.5mg / L; Preferably, during steady-state operation, the conductivity of the cooling medium at 25°C is controlled to be ≤5μS / cm.

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