CN112595001A - Exhaust constant pressure water replenishing device for closed type circulating cooling system - Google Patents
Exhaust constant pressure water replenishing device for closed type circulating cooling system Download PDFInfo
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- CN112595001A CN112595001A CN202011589942.XA CN202011589942A CN112595001A CN 112595001 A CN112595001 A CN 112595001A CN 202011589942 A CN202011589942 A CN 202011589942A CN 112595001 A CN112595001 A CN 112595001A
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- exhaust
- water
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- cooling system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
Abstract
The invention discloses an exhaust constant-pressure water supplementing device for a closed circulating cooling system, which comprises an exhaust module, a water supplementing module and a constant-pressure module; the exhaust module consists of a maintenance ball valve I, a Y-shaped filter I, a water pump I, a one-way valve I, an electromagnetic valve I, a vacuum exhaust tank, a vent valve and a pressure gauge; the water supplementing module consists of a maintenance ball valve II, a Y-shaped filter II, a water pump II, an electromagnetic valve II, a one-way valve II and a pressure sensor; the constant pressure module consists of an expansion tank, an overhaul valve and a safety valve; the expansion tank is connected with the two maintenance valves through a pipeline; one of the maintenance valves is connected with the water discharge opening and the safety valve through a pipeline, and the other maintenance valve is connected with the closed circulating cooling system through a pipeline. The invention integrates the functions of automatic constant pressure, water supplement and air exhaust, and has small floor area and high air exhaust efficiency.
Description
Technical Field
The invention relates to a closed circulating water system device, in particular to an exhaust constant-pressure water replenishing device for a closed circulating cooling system.
Background
Most circulating water systems are seriously troubled by the air problem, the circulating system often cannot supply water or the pressure cannot meet the requirement due to insufficient pressure, the using effect of the system is influenced by the problems, and people are forced to find a solution. At present, an exhaust device commonly adopted is a high-level water tank which must be installed at the highest point of a system pipeline, and has the disadvantages of difficult installation, inconvenient management and large occupied area. The exhaust needs to be provided with a mechanical air separator, and only part of free gas can be exhausted.
Disclosure of Invention
In order to solve the problems, the invention provides an exhaust constant-pressure water supplementing device for a closed circulating cooling system, which integrates the functions of automatic constant pressure, water supplementing and exhaust, and has the advantages of small occupied area and high exhaust efficiency.
The technical scheme of the invention is as follows: an exhaust constant-pressure water replenishing device for a closed circulating cooling system comprises an exhaust module, a water replenishing module and a constant-pressure module;
the exhaust module consists of a maintenance ball valve I, a Y-shaped filter I, a water pump I, a one-way valve I, an electromagnetic valve I, a vacuum exhaust tank, a vent valve and a pressure gauge; the upper part of the vacuum exhaust tank is provided with a water inlet; the water inlet is connected with the first Y-shaped filter through a water conduit; the first Y-shaped filter is connected with the first maintenance ball valve through a water conduit; the first maintenance ball valve is connected with the closed circulating cooling system through a water conduit; the top of the vacuum exhaust tank is provided with a vent valve and a pressure gauge; a backwater outlet is formed in the bottom of the vacuum exhaust tank; the backwater outlet is connected with the first water pump through a backwater pipe; the first water pump is connected with the first one-way valve through a water return pipe; the first one-way valve is connected with the first electromagnetic valve through a water return pipe; the first electromagnetic valve is connected with the first maintenance ball valve through a water return pipe; the first maintenance ball valve is connected with the closed circulating cooling system through a water return pipe; the bottom of the vacuum exhaust tank is provided with a water drainage port;
the water supplementing module consists of a maintenance ball valve II, a Y-shaped filter II, a water pump II, an electromagnetic valve II, a one-way valve II and a pressure sensor; the closed circulating cooling system is connected with a second maintenance ball valve through a water replenishing pipe; a pressure sensor is arranged on the water replenishing pipe; the maintenance valve II is respectively connected with two electromagnetic valves II through water replenishing branch pipelines, and the two electromagnetic valves II are respectively connected with a Y-shaped filter II and a water pump II in a diluted manner; the water replenishing tank is connected with the two water pumps II through a second overhauling ball valve and a second Y-shaped filter;
the constant pressure module consists of an expansion tank, an overhaul valve and a safety valve; the expansion tank is connected with the two maintenance valves through a pipeline; one of the maintenance valves is connected with the water discharge opening and the safety valve through a pipeline, and the other maintenance valve is connected with the closed circulating cooling system through a pipeline.
The vacuum exhaust tank is internally provided with a liquid level switch.
The two water pumps of the water replenishing module are also connected through a second overhauling ball valve.
The invention also comprises a control module, wherein the control module adopts a PLC to control the device; the control module comprises an automatic exhaust control module and a water replenishing control module.
The automatic exhaust control module controls the exhaust module to automatically exhaust; the automatic exhaust can be divided into two working modes, namely intermittent exhaust and continuous exhaust, the closed circulation cooling system is used for the first time or continuous exhaust is selected when air in a closed loop is more, intermittent exhaust is selected under other conditions, and the continuous exhaust is automatically switched to the intermittent exhaust after 2 hours of working.
When the air is continuously exhausted, the water pump and the electromagnetic valve of the exhaust loop work for 1 time every 20 seconds, and the working time of 1 time is 8 seconds; and when the air is discharged discontinuously, the water pump and the electromagnetic valve of the air discharge loop work for 1 time every 40 seconds, and the working time of 1 time is 8 seconds.
The vacuum exhaust tank of the exhaust module is internally provided with the floating ball control device, when the vacuum exhaust tank is initially operated, if the closed circulation system of the water supply module is lack of water and the floating ball device cannot be closed, the exhaust function cannot be started, and a system water shortage alarm signal is output; if the exhaust function is started normally, when the water pump works by electrifying, the liquid level in the vacuum tank drops sharply, so that the phenomenon of short disconnection of the float switch occurs, the signal needs to be set in a delay mode for 10 seconds, if the float is still in a disconnected state after 10 seconds, the exhaust function is stopped, and a water shortage alarm signal of the system is output.
When the pressure of the water replenishing module is lower than a set value, the water replenishing system automatically works, the water pump and the electromagnetic valve are electrified every 30 seconds to work for 1 time, and the working time of 1 time is 8 seconds.
The floating ball control device is arranged in the water replenishing tank of the water replenishing module, when the liquid level in the water replenishing tank is too low, the control box outputs a water shortage alarm signal of the water replenishing tank, the water replenishing function is stopped, and after the floating ball switch is closed, the water replenishing function is automatically recovered.
The exhaust control module and the water replenishing control module both have a manual exhaust mode and an automatic exhaust mode.
The invention has the beneficial effects that: the invention integrates the functions of automatic constant pressure, water supply and exhaust, and has the advantages of small occupied area, full-automatic control and high exhaust efficiency. The system pressure can be controlled very accurately; gas in a circulating water system can be effectively discharged, and water can be automatically supplemented and drained; the structure design is adopted, the structure is simple and practical, the installation is convenient, and the occupied space is small.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic diagram of the operation of the present invention.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
In the description of the present invention, it is to be understood that the terms "middle", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In addition, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the exhaust constant pressure water replenishing device for a closed circulation cooling system of the present invention includes an exhaust module, a water replenishing module and a constant pressure module;
the exhaust module consists of a maintenance ball valve I1, a Y-shaped filter I2, a water pump I3, a one-way valve I4, an electromagnetic valve I5, a vacuum exhaust tank 7, a vent valve 8 and a pressure gauge 9; the upper part of the vacuum exhaust tank 7 is provided with a water inlet 19; the water inlet 19 is connected with the Y-shaped filter I2 through a water conduit; the Y-shaped filter I2 is connected with the maintenance ball valve I1 through a water conduit; the maintenance ball valve I1 is connected with the closed circulating cooling system through a water conduit; the top of the vacuum exhaust tank 7 is provided with a vent valve 8 and a pressure gauge 9; a liquid level switch 6 is arranged in the vacuum exhaust tank 7; a backwater outlet 20 is arranged at the bottom of the vacuum exhaust tank 7; the return water outlet 20 is connected with the first water pump 3 through a return water pipe; the water pump I3 is connected with the one-way valve I4 through a water return pipe; the one-way valve I4 is connected with the electromagnetic valve I5 through a water return pipe; the electromagnetic valve I5 is connected with the maintenance ball valve I1 through a water return pipe; the maintenance ball valve I1 is connected with the closed circulating cooling system through a water return pipe; the bottom of the vacuum exhaust tank 7 is provided with a drain outlet 21. During air exhaust, liquid in the vacuum exhaust tank is instantly pumped out through the water pump to enable the interior of the vacuum exhaust tank to form a negative pressure state, the liquid in the exhaust pipe enters the vacuum tank under the pushing of the pressure of a closed system to form a jet shape, dissolved gas is separated out in the low pressure state, and the dissolved gas is exhausted through the automatic ventilation valve 8, so that the air exhaust function is realized.
The water supplementing module consists of a second overhauling ball valve 10, a second Y-shaped filter 11, a second water pump 12, a second electromagnetic valve 13, a second one-way valve 14 and a pressure sensor 15; the closed circulating cooling system is connected with a second overhaul ball valve 10 through a water replenishing pipe; the water replenishing pipe is provided with a pressure sensor 15; the second overhaul valve 10 is respectively connected with the second two electromagnetic valves 13 through a water replenishing branch pipeline, and the second two electromagnetic valves 13 are respectively connected with the second Y-shaped filter 11 and the second water pump 12 in a diluted manner; the water replenishing tank 22 is connected with the two water pumps 12 through the second overhauling ball valve 10 and the second Y-shaped filter 11; and the two water pumps of the water supplementing module are also connected through a second overhauling ball valve 10. The water replenishing pipe is connected with the closed system, and the water replenishing inlet interface is connected with a water replenishing source. When the pressure sensor detects that the system pressure is lower than the set pressure, the water replenishing pump can be started manually or automatically to replenish water for the closed system, the requirement of the system water quantity is met, and the two water replenishing pumps are mutually standby. If the external water replenishing source has working pressure, a water replenishing pump can be not selected, and water is directly replenished through the water source pressure and the electromagnetic valve.
The constant pressure module consists of an expansion tank 16, an overhaul valve 17 and a safety valve 18; the expansion tank 16 is connected with two maintenance valves 17 through pipelines; one of the service valves 17 is connected with the drain opening 21 and the safety valve 18 through pipelines, and the other service valve 17 is connected with the closed circulation cooling system through a pipeline. Compressed air with certain pressure is pre-filled in the expansion tank 16, the pressure change of the system caused by expansion with heat and contraction with cold can be compensated through the volume change of the compressed air, the pressure is set to be 1.OMPa by the safety valve, and the potential safety hazard that the overpressure of the system possibly occurs under special conditions can be avoided.
The invention also comprises a control module, wherein the control module adopts a PLC to control the device; the control module comprises an automatic exhaust control module and a water replenishing control module.
The automatic exhaust control module controls the exhaust module to automatically exhaust; the automatic exhaust can be divided into two working modes, namely intermittent exhaust and continuous exhaust, the closed circulation cooling system is used for the first time or continuous exhaust is selected when air in a closed loop is more, intermittent exhaust is selected under other conditions, and the continuous exhaust is automatically switched to the intermittent exhaust after 2 hours (adjustable) of operation.
When in continuous exhaust, the water pump and the electromagnetic valve of the exhaust loop are set to work for 1 time (the time is adjustable) every 20 seconds, and the working time of 1 time is 8 seconds; when the exhaust is interrupted, the water pump and the electromagnetic valve of the exhaust loop work for 1 time (the time is adjustable) every 40 seconds, and the working time of 1 time is 8 seconds.
Electric 380V 50HZ 1.1KW exhaust water pump, electric 220V 50HZ electromagnetic valve (normally closed, power supply open)
A floating ball control device is arranged in a vacuum exhaust tank of the exhaust module, when the vacuum exhaust tank runs initially, if the water supply module closed circulation system is lack of water and the floating ball device cannot be closed, the exhaust function cannot be started, and a system water shortage alarm signal is output; if the exhaust function is started normally, when the water pump works by electrifying, the liquid level in the vacuum tank drops sharply, so that the phenomenon of short disconnection of the float switch occurs, the signal needs to be set in a delay mode for 10 seconds, if the float is still in a disconnected state after 10 seconds, the exhaust function is stopped, and a water shortage alarm signal of the system is output.
If the exhaust pump is in fault, a fault alarm signal of the exhaust pump needs to be output.
When the exhaust works normally, the exhaust operation indicator lamp is on, and an operation signal is output. When a fault occurs, the alarm signal is output in a comprehensive alarm mode, alarm items are specifically displayed on the touch screen, and automatic or manual recovery can be realized after the fault is eliminated.
The exhaust control module has two modes of manual exhaust and automatic exhaust, the exhaust system automatically operates in the automatic mode, and the exhaust system can be controlled to start and stop through the start-stop button in the manual mode.
The water charging system is provided with two water pumps, 380V 50HZ 1.1KW are mutually standby, and can automatically switch when a fault occurs and output a water pump fault alarm. The work of the water replenishing pump is controlled by the pressure of a closed system, the outlet of the water replenishing pump is provided with a pressure transmitter DC24V to output a signal of 4-20mA, the system pressure can be monitored, the control module can set the water replenishing pressure, and when the system pressure is lower than a set value, the system needs to be replenished with water.
The water replenishing can be divided into a manual mode and an automatic mode.
Automatic mode: when the pressure of the system is lower than a set value, the water supplementing system automatically works, the water pump and the electromagnetic valve are electrified to work for 1 time (the time is adjustable) every 30 seconds, and the working time of 1 time is 8 seconds.
In the water replenishing system, a floating ball control device is arranged in a water replenishing groove, when the liquid level in the water replenishing tank is too low, the control box outputs a water shortage alarm signal of the water replenishing tank, the water replenishing function is stopped, and after a floating ball switch is closed, the water replenishing function is automatically recovered.
And detecting the working frequency of the water replenishing pump, and if the power frequency of the water pump exceeds 40 times within 30 minutes (adjustable design), outputting a system leakage fault alarm signal and stopping the water replenishing function.
Manual mode: when the pressure of the system is lower than a set value, a low-pressure alarm signal is output, an operator manually clicks a water replenishing starting button, the water pump and the electromagnetic valve are powered to work for 1 time (the time is adjustable) every 30 seconds after starting, the working time of 1 time is 8 seconds, and a stopping button is clicked after the pressure is higher than the set value.
All alarm signals of the water replenishing system and the exhaust system are combined into comprehensive alarm output, and alarm items are displayed on a screen.
The automatic exhaust constant-pressure water replenishing device can select a local control/remote control working mode, can receive a remote control start-stop signal in the remote control mode, and starts a closing signal device and stops a cutting signal device.
The invention is suitable for a closed circulation system, the working medium is fresh water and 65 # military aviation cooling liquid, and the water supplementing constant pressure is 0.05-0.6 MPa.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a closed circulation cooling system is with exhaust level pressure moisturizing device which characterized in that: the device comprises an exhaust module, a water replenishing module and a constant pressure module;
the exhaust module consists of a maintenance ball valve I (1), a Y-shaped filter I (2), a water pump I (3), a one-way valve I (4), an electromagnetic valve I (5), a vacuum exhaust tank (7), a vent valve (8) and a pressure gauge (9); a water inlet (19) is arranged at the upper part of the vacuum exhaust tank (7); the water inlet (19) is connected with the Y-shaped filter I (2) through a water conduit; the Y-shaped filter I (2) is connected with the maintenance ball valve I (1) through a water conduit; the maintenance ball valve I (1) is connected with the closed circulating cooling system through a water conduit; the top of the vacuum exhaust tank (7) is provided with a vent valve (8) and a pressure gauge (9); a backwater outlet (20) is arranged at the bottom of the vacuum exhaust tank (7); the return water outlet (20) is connected with the first water pump (3) through a return water pipe; the water pump I (3) is connected with the one-way valve I (4) through a water return pipe; the one-way valve I (4) is connected with the electromagnetic valve I (5) through a water return pipe; the first electromagnetic valve (5) is connected with the first maintenance ball valve (1) through a water return pipe; the maintenance ball valve I (1) is connected with the closed circulating cooling system through a water return pipe; a drain outlet (21) is arranged at the bottom of the vacuum exhaust tank (7);
the water supplementing module consists of a second overhauling ball valve (10), a second Y-shaped filter (11), a second water pump (12), a second electromagnetic valve (13), a second one-way valve (14) and a pressure sensor (15); the closed circulating cooling system is connected with a second overhaul ball valve (10) through a water replenishing pipe; a pressure sensor (15) is arranged on the water replenishing pipe; the second overhaul valve (10) is respectively connected with the second electromagnetic valve (13) through a water replenishing branch pipeline, and the second electromagnetic valve (13) is respectively connected with the second Y-shaped filter (11) and the second water pump (12) in a diluted manner; the water replenishing tank (22) is connected with the two water pumps II (12) through the maintenance ball valve II (10) and the Y-shaped filter II (11);
the constant pressure module consists of an expansion tank (16), a maintenance valve (17) and a safety valve (18); the expansion tank (16) is connected with two maintenance valves (17) through pipelines; one of the maintenance valves (17) is connected with the water drainage opening (21) and the safety valve (18) through a pipeline, and the other maintenance valve (17) is connected with the closed circulation cooling system through a pipeline.
2. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 1, characterized in that: and a liquid level switch (6) is arranged in the vacuum exhaust tank (7).
3. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 1, characterized in that: and the two water pumps of the water supplementing module are also connected through a second overhauling ball valve (10).
4. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 1, characterized in that: the device also comprises a control module, wherein the control module adopts a PLC to control the device; the control module comprises an automatic exhaust control module and a water replenishing control module.
5. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 4, characterized in that: the automatic exhaust control module controls the exhaust module to automatically exhaust; the automatic exhaust can be divided into two working modes, namely intermittent exhaust and continuous exhaust, the closed circulation cooling system is used for the first time or continuous exhaust is selected when air in a closed loop is more, intermittent exhaust is selected under other conditions, and the continuous exhaust is automatically switched to the intermittent exhaust after 2 hours of working.
6. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 5, characterized in that: when in continuous exhaust, the water pump and the electromagnetic valve of the exhaust loop work for 1 time every 20 seconds, and the working time of 1 time is 8 seconds; and when the air is discharged discontinuously, the water pump and the electromagnetic valve of the air discharge loop work for 1 time every 40 seconds, and the working time of 1 time is 8 seconds.
7. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 4 or 5, characterized in that: a floating ball control device is arranged in a vacuum exhaust tank of the exhaust module, when the vacuum exhaust tank runs initially, if the water supply module closed circulation system is lack of water and the floating ball device cannot be closed, the exhaust function cannot be started, and a system water shortage alarm signal is output; if the exhaust function is started normally, when the water pump works by electrifying, the liquid level in the vacuum tank drops sharply, so that the phenomenon of short disconnection of the float switch occurs, the signal needs to be set in a delay mode for 10 seconds, if the float is still in a disconnected state after 10 seconds, the exhaust function is stopped, and a water shortage alarm signal of the system is output.
8. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 4, characterized in that: when the pressure of the water supplementing module is lower than a set value, the water supplementing system works automatically, the water pump and the electromagnetic valve are powered on to work for 1 time every 30 seconds, and the working time of 1 time is 8 seconds.
9. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 8, characterized in that: a floating ball control device is arranged in a water replenishing groove of the water replenishing module, when the liquid level in the water replenishing tank is too low, the control box outputs a water shortage alarm signal of the water replenishing tank, the water replenishing function stops, and after the floating ball switch is closed, the water replenishing function is automatically recovered.
10. The exhaust constant-pressure water replenishing device for the closed cycle cooling system according to claim 4, characterized in that: the exhaust control module and the water replenishing control module are both provided with two modes of manual exhaust and automatic exhaust.
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| CN202011589942.XA CN112595001A (en) | 2020-12-29 | 2020-12-29 | Exhaust constant pressure water replenishing device for closed type circulating cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011589942.XA CN112595001A (en) | 2020-12-29 | 2020-12-29 | Exhaust constant pressure water replenishing device for closed type circulating cooling system |
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| US5578331A (en) * | 1994-06-10 | 1996-11-26 | Vision Products, Inc. | Automated apparatus for preparing contact lenses for inspection and packaging |
| CN101916595A (en) * | 2010-07-28 | 2010-12-15 | 中国广东核电集团有限公司 | Method for vacuumizing and exhausting reactor primary circuit of pressurized water reactor nuclear power station |
| CN201762132U (en) * | 2010-01-22 | 2011-03-16 | 江西天伦环保科技有限公司 | Constant-pressure water supplementing vacuum degassing unit |
| CN103063249A (en) * | 2012-12-24 | 2013-04-24 | 中国北车集团大连机车研究所有限公司 | Water-cooling substrate test bed for electronic power module cooling and test method thereof |
| CN105739578A (en) * | 2016-02-25 | 2016-07-06 | 北京德安源环境科技发展有限公司 | Control system and control method of intelligent vacuum degassing machine |
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2020
- 2020-12-29 CN CN202011589942.XA patent/CN112595001A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578331A (en) * | 1994-06-10 | 1996-11-26 | Vision Products, Inc. | Automated apparatus for preparing contact lenses for inspection and packaging |
| CN201762132U (en) * | 2010-01-22 | 2011-03-16 | 江西天伦环保科技有限公司 | Constant-pressure water supplementing vacuum degassing unit |
| CN101916595A (en) * | 2010-07-28 | 2010-12-15 | 中国广东核电集团有限公司 | Method for vacuumizing and exhausting reactor primary circuit of pressurized water reactor nuclear power station |
| CN103063249A (en) * | 2012-12-24 | 2013-04-24 | 中国北车集团大连机车研究所有限公司 | Water-cooling substrate test bed for electronic power module cooling and test method thereof |
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