CN213599821U - Closed circulation system for cooling and supplying water to crucible - Google Patents
Closed circulation system for cooling and supplying water to crucible Download PDFInfo
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- CN213599821U CN213599821U CN202022528195.0U CN202022528195U CN213599821U CN 213599821 U CN213599821 U CN 213599821U CN 202022528195 U CN202022528195 U CN 202022528195U CN 213599821 U CN213599821 U CN 213599821U
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Abstract
The utility model discloses a closed circulating system for cooling and supplying water to a crucible, which comprises an external circulating water supply system, an internal circulating cooling water system and a water replenishing tank D, wherein the internal circulating cooling water system for cooling the crucible is a closed circulating system, and the external circulating water supply system and the internal circulating cooling water system exchange heat through a heat exchanger E; the external circulation water supply system supplies water to the water supply tank D, the water supply tank D supplies water to the internal circulation cooling water system, and the water supply tank D is connected to a water outlet through an overflow port; and the air outlets of the water pumps of the external circulation water supply system, the internal circulation cooling water system and the internal circulation cooling water system are connected to the water outlet through pipelines. The system has high operation stability and high safety.
Description
Technical Field
The utility model relates to a crucible cooling technical field especially relates to a crucible cooling water supply closed circulation system.
Background
In metal smelting, in order to prevent the copper crucible from chemically reacting with liquid metal, the crucible needs to be cooled with high efficiency so that the surface of the crucible is kept at a low temperature. The flow and the temperature of the cooling water determine the cooling efficiency of the crucible, the cooling water supply system with stable flow and reliable heat exchange is provided, the constant water temperature is important for the normal operation of the crucible, meanwhile, the water storage capacity of the cooling water system is an important index for checking the safe operation of the crucible system, the water supply cooling is not good at all, and the potential safety hazard exists at most, so that the water storage capacity of the cooling water system meets the index of the safe operation under the condition that the cooling water flow and the cooling temperature meet the cooling requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a closed circulation system for cooling and supplying water of a crucible, aiming at the defect that the water storage capacity of the crucible cooling existing in the prior art is large and has safety problems.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
a closed circulating system for cooling and supplying water to a crucible comprises an external circulating water supply system, an internal circulating cooling water system and a water replenishing tank D, wherein the internal circulating cooling water system for cooling the crucible is a closed circulating system, and the external circulating water supply system and the internal circulating cooling water system exchange heat through a heat exchanger E;
the external circulation water supply system supplies water to the water supply tank D, the water supply tank D supplies water to the internal circulation cooling water system, and the water supply tank D is connected to a water outlet through an overflow port;
and the air outlets of the water pumps of the external circulation water supply system, the internal circulation cooling water system and the internal circulation cooling water system are connected to the water outlet through pipelines.
In the technical scheme, the external circulation water supply system comprises an external circulation water tank, an external circulation water supply pipeline and an external circulation water return pipeline, wherein the external circulation water supply pipeline is used for communicating the external circulation water tank with the heat exchanger E, the external circulation water supply pipeline is provided with a valve V001, and the external circulation water return pipeline is provided with a valve V002;
the internal circulation cooling water system comprises a crucible water supply pipeline and a crucible water return pipeline which are respectively communicated with the heat exchanger E, a water pump P is arranged on the crucible water supply pipeline, a valve V009 is arranged on the crucible water supply pipeline between the heat exchanger E and the water pump P, a normally open electromagnetic valve V020 and a water supply control valve are arranged on the crucible water supply pipeline between the water pump P and a crucible water supply opening, the crucible water return pipeline is arranged between the crucible water return opening and the heat exchanger E, and a water return control valve is arranged on the crucible water return pipeline;
the bottom of the water replenishing tank D is communicated with a water inlet of the water pump P through a water replenishing pipeline, a valve V010 is arranged on the water replenishing pipeline, the external circulation water supply pipeline is communicated with the water replenishing tank D through a water inlet pipeline, a water inlet control valve is arranged on the water inlet pipeline, a pipeline between the water inlet control valve and the water replenishing tank D is communicated with a water outlet through a first water discharge pipeline, a valve V005 is arranged on the first water discharge pipeline, and an overflow port in the upper part of the water replenishing tank D is connected to the water outlet through an overflow pipeline;
the heat exchanger E with be connected with the second drainage branch road on the pipeline between the valve V009, second drainage branch road 9 is linked together with the outlet, the gas vent of water pump P through the third discharge branch road with the outlet is linked together, be equipped with exhaust control valve on the third discharge branch road, the delivery port of water pump P through the fourth drainage branch road with the outlet is linked together, be equipped with drainage control valve on the fourth drainage branch road.
In the technical scheme, the liquid level of the external circulation water tank is higher than the liquid level of the water supplementing tank so as to realize automatic water supplementing and liquid level control of the water supplementing tank, and the water supplementing tank is higher than the water pump P and is used for supplementing water through water drop difference gravity.
In the above technical solution, the water supply control valve includes a valve V015 and a valve V016, the backwater control valve includes a valve V017 and a valve V019, the water inlet control valve includes a valve V003 and a valve V004, and the drain control valve on the fourth drain branch includes a valve V006 and a valve V007.
In the above technical solution, a flow meter FE01 is disposed on the crucible water supply pipeline, a flow meter FE02 is disposed on the crucible water return pipeline to monitor the flow rate of the system cooling water, further, the flow meter FE01 is disposed on the crucible water supply pipeline between the water pump and the water supply control valve, and the flow meter FE02 is disposed on the crucible water return pipeline between the water return control valve and the heat exchanger E.
In the above technical solution, a thermometer TT01 is disposed on the crucible water supply pipeline, a thermometer TT02 is disposed on the crucible water return pipeline to monitor the temperature of the system cooling water, further, the thermometer TT01 is disposed on the crucible water supply pipeline between the water pump and the water supply control valve, and the thermometer TT02 is disposed on the crucible water return pipeline between the water return control valve and the heat exchanger E.
In the technical scheme, a pressure sensor PT01 and a pressure gauge PI01 are arranged on a crucible water supply pipeline between the heat exchanger E and the water inlet of the water pump P, and a pressure sensor PPT02 and a pressure gauge PI02 are arranged on a crucible water supply pipeline between the water outlet of the water pump P and the crucible water supply port to detect the pressure of the water inlet and the water outlet of the water pump P.
In the above technical scheme, water pump P includes water pump P1 and water pump P2, the gas vent of water pump P1 is connected to through first output pipeline the drain outlet, be equipped with valve V013 on the first output pipeline, the gas vent of water pump P2 is connected to through the second output pipeline the drain outlet, be equipped with valve V014 on the second output pipeline.
In the technical scheme, a one-way valve V011 is arranged at the water outlet of the water pump P1, and a one-way valve V012 is arranged at the water outlet of the water pump P2.
In the above technical scheme, a one-way valve V018 is arranged on the crucible water return pipeline.
In the above technical scheme, the heat exchanger E is a plate heat exchanger.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the whole system has compact pipelines, small occupied space and small water storage capacity, ensures the safety of a crucible system, has the functions of water adding and draining, starting exhaust, water pump switching, cooling heat exchange and the like of the system, is used for one by connecting two pumps in parallel for water supply, ensures the stable and reliable water supply flow, adopts a plate-type heat exchanger, has sufficient heat exchange and ensures the stable water supply temperature.
2. The water replenishing tank of the crucible cooling water supply system is connected with the external circulation water tank, automatic water replenishing and liquid level control of the water replenishing tank are realized through the higher liquid level of the external circulation water tank, and normal-temperature water in the water replenishing tank automatically flows to the water inlet of the water pump through gravity, so that energy is saved, and the stability of system flow is ensured.
3. The crucible cooling water supply system adopts closed circulation, realizes heat exchange between the normal-temperature water of the external water supply tank and the high-temperature water of the crucible cooling water supply system through the heat exchanger, and obtains the cooling water cooling crucible below 30 ℃. The system isolates the high-temperature crucible from the external water supply tank, avoids potential harm of a large amount of external water supply and crucible contact, simultaneously adopts closed circulation to realize controllable water storage capacity of the system, controls the water storage capacity of the system within a safety range through pipeline and accessory model selection, and prevents that water can enter a test space where the crucible is located and possibly cause accidents when a crucible cooling water runner is damaged.
4. The air outlet of the water pump of the crucible cooling water supply system is provided with a valve which is connected with a water drainage pipeline, and when the water pump starts to operate, gas in the pipeline system is discharged through a switch valve, so that the system flow is fast and stable.
5. The outlet of the water pump of the crucible cooling water supply system and the return water port of the crucible are provided with one-way valves to prevent cooling water from flowing backwards, the supply water port of the crucible is provided with a normally open electromagnetic valve, the electromagnetic valve is closed when the system is abnormal, water supply to the crucible is cut off, and the safety of the system is improved.
Drawings
Fig. 1 is a schematic structural view of a closed circulation system for supplying water for cooling a crucible.
In the figure: 1-an external circulation water supply pipeline, 2-an external circulation water return pipeline, 3-a crucible water supply pipeline, 4-a crucible water return pipeline, 5-a water supplement pipeline, 6-a water inlet pipeline, 7-a first water discharge pipeline, 8-an overflow port, 9-a second water discharge branch, 10-a third water discharge branch and 11-a fourth water discharge branch.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A closed circulating system for cooling and supplying water to a crucible comprises an external circulating water supply system, an internal circulating cooling water system and a water replenishing tank D, wherein the internal circulating cooling water system for cooling the crucible is a closed circulating system, and the external circulating water supply system and the internal circulating cooling water system exchange heat through a heat exchanger E;
the external circulation water supply system supplies water to the water supply tank D, the water supply tank D supplies water to the internal circulation cooling water system, and the water supply tank D is connected to a water outlet through an overflow port;
and the air outlets of the water pumps of the external circulation water supply system, the internal circulation cooling water system and the internal circulation cooling water system are connected to the water outlet through pipelines.
The temperature of cooling water in an internal circulating cooling water system (crucible cooling water supply system) is less than or equal to 30 ℃, after the crucible working at high temperature is cooled, the temperature at a water return port of the crucible can reach 55 ℃, normal-temperature water in an external water supply tank is used for cooling high-temperature water in the crucible cooling water supply system through a heat exchanger E to reduce the temperature to below 30 ℃, and the high-temperature crucible is circularly cooled through a water supply pump. The water replenishing tank D has the function of replenishing water to the internal circulation cooling water system and also has the functions of exhausting and draining.
More preferably, the external circulation water supply system comprises an external circulation water tank (not shown in the figure), an external circulation water supply pipeline 1 and an external circulation water return pipeline 2, wherein the external circulation water tank is communicated with the heat exchanger E, the external circulation water supply pipeline 1 is provided with a valve V001, and the external circulation water return pipeline 2 is provided with a valve V002;
the internal circulation cooling water system comprises a crucible water supply pipeline 3 and a crucible water return pipeline 4 which are respectively communicated with the heat exchanger E, a water pump P is arranged on the crucible water supply pipeline 3, a valve V009 is arranged on the crucible water supply pipeline 3 between the heat exchanger E and the water pump P, a normally open electromagnetic valve V020 and a water supply control valve are arranged on the crucible water supply pipeline 3 between the water pump P and a crucible water supply opening, the crucible water return pipeline 4 is arranged between the crucible water return opening and the heat exchanger E, and a water return control valve is arranged on the crucible water return pipeline 4;
the bottom of the water replenishing tank D is communicated with a water inlet of the water pump P through a water replenishing pipeline 5, the water replenishing pipeline 5 is provided with a valve V010, the external circulation water supply pipeline 1 is communicated with the water replenishing tank D through a water inlet pipeline 6, the water inlet pipeline 6 is provided with a water inlet control valve, a pipeline between the water inlet control valve and the water replenishing tank D is communicated with a water outlet through a first water discharge pipeline 7, the first water discharge pipeline 7 is provided with a valve V005, and an overflow port 8 in the upper part of the water replenishing tank D is connected to the water outlet through an overflow pipeline;
a second water drainage branch 9 is connected to a pipeline between the heat exchanger E and the valve V009, the second water drainage branch 9 is communicated with the water outlet, an air outlet of the water pump P is communicated with the water outlet through a third water drainage branch 10, an air exhaust control valve is arranged on the third water drainage branch 10, a water outlet of the water pump P is communicated with the water outlet through a fourth water drainage branch 11, and a water drainage control valve is arranged on the fourth water drainage branch 11.
Preferably, the water supply control valves include a valve V015 and a valve V016, the backwater control valves include a valve V017 and a valve V019, the water inlet control valves include a valve V003 and a valve V004, and the drain control valves on the fourth drain branch 11 include a valve V006 and a valve V007. The arrangement of the double valves can improve the safety performance, and ensure that the pipeline where the double valves are located can be cut off when water leakage occurs.
Example 2
The operation method of the closed circulation system for supplying water for cooling the crucible according to the embodiment comprises the following steps:
before the crucible cooling water supply circulating system works, valves V001 and V002, water inlet control valves (valves V003 and V004), valves V009 and V010, water supply control valves (valves V015 and V016) and water return control valves (valves V017 and V019) are opened, other valves are closed, an external circulating water tank supplies water to an internal circulating cooling water system and a water replenishing tank, and when the liquid level in the water replenishing tank is higher than an overflow port 8, the water is automatically discharged to a water outlet through an overflow pipeline;
when the crucible cooling water supply circulating system works, closing the valves V008, V006, V007, V013 and V014, the water inlet control valves (V003, V004) and V005 and opening other valves, starting the water pump P1 or P2, when the crucible cooling water supply circulating system just starts to work, the system pipeline always contains partial air, and the air concentrated on the exhaust port of the water pump is exhausted through the water outlet by opening and closing the exhaust control valves (the valves V013 and V014) on the third exhaust branch 10 for multiple times; when the crucible cooling water supply circulating system is abnormal, the normally open electromagnetic valve V020 is closed, the crucible water supply is cut off, and the safety of the crucible is ensured. When the crucible cooling water supply circulating system is stopped, the water pump P is closed, after the water pump P is stopped, the valves V001 and V002, the water supply control valves (the valves V015 and V016) and the water return control valves (the valves V017 and V019) are closed, and the water supply of the external circulating water tank and the water supply of the crucible are cut off.
When the crucible cooling water supply circulating system drains water, the valves V005, V006, V007 and V008 are opened, and other valves are closed to drain the cooling water in the system.
Example 3
Preferably, a flow meter FE01 is provided on the crucible water supply line 3, a flow meter FE02 is provided on the crucible water return line 4 to monitor the flow rate of the system cooling water, further, the flow meter FE01 is provided on the crucible water supply line 3 between the water pump and the water supply control valve, and the flow meter FE02 is provided on the crucible water return line 4 between the water return control valve and the heat exchanger E.
Preferably, a thermometer TT01 is provided on the crucible water supply line 3, a thermometer TT02 is provided on the crucible water return line 4 to monitor the system cooling water temperature, further, the thermometer TT01 is provided on the crucible water supply line 3 between the water pump and the water supply control valve, and the thermometer TT02 is provided on the crucible water return line 4 between the water return control valve and the heat exchanger E.
Preferably, a pressure sensor PT01 and a pressure gauge PI01 are arranged on the crucible water supply pipeline 3 between the heat exchanger E and the water inlet of the water pump P, and a pressure sensor PPT02 and a pressure gauge PI02 are arranged on the crucible water supply pipeline 3 between the water outlet of the water pump P and the crucible water supply port to detect the pressure of the water inlet and outlet of the water pump P.
When the crucible cooling water supply circulation system works, the flowmeters FE01 and FE02 monitor the cooling water flow of the internal circulation cooling water system, the thermometers TT01 and TT02 monitor the cooling water temperature of the internal circulation cooling water system, and the pressure sensors PT01 and PT02 and the pressure gauges PI01 and PI02 detect the water inlet and outlet pressure of the water pump.
Preferably, the water pump P comprises a water pump P1 and a water pump P2, a valve V013 is arranged on an exhaust port of the water pump P1, and a valve V014 is arranged on an exhaust port of the water pump P2. When the crucible cooling water supply circulation system flowmeter FE01 and FE02 are normally operated, one water pump is started, and when the monitoring flow of the crucible cooling water supply circulation system flowmeter FE01 and FE02 is reduced to a set value, the other water pump is quickly started, so that the stability of the crucible cooling water supply flow is ensured. Therefore, the system can continue to stably supply water, the water pump can be switched under the working conditions of water supply maintenance or water pump service life balance and the like without stopping the water pump due to fault, the system can continuously supply water, and the stability and reliability of the water supply system can be improved.
Preferably, a check valve V011 is arranged at the water outlet of the water pump P1, and a check valve V012 is arranged at the water outlet of the water pump P2, so as to prevent the cooling water from flowing backwards.
Preferably, a check valve V018 is disposed on the crucible return line 4 to prevent the cooling water from flowing backward.
Preferably, the heat exchanger E is a plate heat exchangerA heat apparatus. The plate heat exchanger is adopted to exchange heat with the normal temperature water of the external water replenishing tank, the heat transfer efficiency is high, the heat exchange coefficient is large, the structure is compact, and the specific surface area can reach 1000m2/m3The system has a large heat exchange area and a small water storage capacity, and is more favorable for the safety of the whole system. Meanwhile, the plate heat exchanger has higher standardization and serialization degrees, has strong interchangeability and is convenient to maintain and replace.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to refer to different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (11)
1. A closed circulating system for cooling and supplying water to a crucible is characterized by comprising an external circulating water supply system, an internal circulating cooling water system and a water replenishing tank D, wherein the internal circulating cooling water system for cooling the crucible is a closed circulating system, and the external circulating water supply system and the internal circulating cooling water system exchange heat through a heat exchanger E;
the external circulation water supply system supplies water to the water supply tank D, the water supply tank D supplies water to the internal circulation cooling water system, and the water supply tank D is connected to a water outlet through an overflow port;
and the air outlets of the water pumps of the external circulation water supply system, the internal circulation cooling water system and the internal circulation cooling water system are connected to the water outlet through pipelines.
2. The closed circulation system for supplying water to a crucible as claimed in claim 1, wherein the external circulation water supply system comprises an external circulation water tank, an external circulation water supply pipeline for communicating the external circulation water tank with the heat exchanger E, and an external circulation water return pipeline, wherein the external circulation water supply pipeline is provided with a valve V001, and the external circulation water return pipeline is provided with a valve V002;
the internal circulation cooling water system comprises a crucible water supply pipeline and a crucible water return pipeline which are respectively communicated with the heat exchanger E, a water pump P is arranged on the crucible water supply pipeline, a valve V009 is arranged on the crucible water supply pipeline between the heat exchanger E and the water pump P, a normally open electromagnetic valve V020 and a water supply control valve are arranged on the crucible water supply pipeline between the water pump P and a crucible water supply opening, the crucible water return pipeline is arranged between the crucible water return opening and the heat exchanger E, and a water return control valve is arranged on the crucible water return pipeline;
the bottom of the water replenishing tank D is communicated with a water inlet of the water pump P through a water replenishing pipeline, a valve V010 is arranged on the water replenishing pipeline, the external circulation water supply pipeline is communicated with the water replenishing tank D through a water inlet pipeline, a water inlet control valve is arranged on the water inlet pipeline, a pipeline between the water inlet control valve and the water replenishing tank D is communicated with a water outlet through a first water discharge pipeline, a valve V005 is arranged on the first water discharge pipeline, and an overflow port in the upper part of the water replenishing tank D is connected to the water outlet through an overflow pipeline;
the heat exchanger E with be connected with the second drainage branch road on the pipeline between the valve V009, second drainage branch road (9) are linked together with the outlet, the gas vent of water pump P through the third discharge branch road with the outlet is linked together, be equipped with exhaust control valve on the third discharge branch road, the delivery port of water pump P through the fourth drainage branch road with the outlet is linked together, be equipped with drainage control valve on the fourth drainage branch road.
3. The closed circulation system for supplying water to a crucible as claimed in claim 2, wherein the liquid level of the outer circulation water tank is higher than that of the makeup water tank to realize automatic water supply and liquid level control of the makeup water tank, and the makeup water tank is higher than the height of the water pump P to supply water by gravity through water drop.
4. The closed circulation system for supplying water for cooling a crucible as claimed in claim 2, wherein the water supply control valves comprise a valve V015 and a valve V016, the water return control valves comprise a valve V017 and a valve V019, the water supply control valves comprise a valve V003 and a valve V004, and the drain control valve on the fourth drain branch comprises a valve V006 and a valve V007.
5. The closed circulation system for supplying water to crucible of claim 2, wherein a flow meter FE01 is provided on the supply water line of crucible, a flow meter FE02 is provided on the return water line of crucible to monitor the flow rate of system cooling water, further, the flow meter FE01 is provided on the supply water line of crucible between the water pump and the supply water control valve, and the flow meter FE02 is provided on the return water line of crucible between the return water control valve and the heat exchanger E.
6. The closed circulation system for supplying water to a crucible as claimed in claim 2, wherein a thermometer TT01 is provided on the water supply line of the crucible, a thermometer TT02 is provided on the water return line of the crucible to monitor the temperature of the system cooling water, and further, the thermometer TT01 is provided on the water supply line of the crucible between the water pump and the water supply control valve, and the thermometer TT02 is provided on the water return line of the crucible between the water return control valve and the heat exchanger E.
7. The closed circulation system for supplying water to a crucible as claimed in claim 2, wherein a pressure sensor PT01 and a pressure gauge PI01 are provided on the water supply pipeline of the crucible between the heat exchanger E and the water inlet of the water pump P, and a pressure sensor PPT02 and a pressure gauge PI02 are provided on the water supply pipeline of the crucible between the water outlet of the water pump P and the water inlet of the crucible to detect the pressure of the water inlet and outlet of the water pump P.
8. The closed circulation system for supplying water to the crucible cooling system as claimed in claim 2, wherein the water pump P comprises a water pump P1 and a water pump P2, a gas outlet of the water pump P1 is connected to the water outlet through a first output pipe, a valve V013 is provided on the first output pipe, a gas outlet of the water pump P2 is connected to the water outlet through a second output pipe, and a valve V014 is provided on the second output pipe.
9. The closed circulation system for supplying water to the crucible as claimed in claim 2, wherein a check valve V011 is arranged at the water outlet of the water pump P1, and a check valve V012 is arranged at the water outlet of the water pump P2.
10. The closed circulation system for supplying water to the crucible as claimed in claim 2, wherein a check valve V018 is arranged on the crucible return water pipe.
11. The closed circulation system for supplying water to the crucible as claimed in claim 2, wherein the heat exchanger E is a plate type heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022528195.0U CN213599821U (en) | 2020-11-04 | 2020-11-04 | Closed circulation system for cooling and supplying water to crucible |
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| CN202022528195.0U CN213599821U (en) | 2020-11-04 | 2020-11-04 | Closed circulation system for cooling and supplying water to crucible |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114061309A (en) * | 2020-11-04 | 2022-02-18 | 核工业理化工程研究院 | Closed circulation system for cooling and water supplying of crucible and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061309A (en) * | 2020-11-04 | 2022-02-18 | 核工业理化工程研究院 | Closed circulation system for cooling and water supplying of crucible and operation method thereof |
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