CN117042399A - Environment-friendly cooling system for building site machine room - Google Patents
Environment-friendly cooling system for building site machine room Download PDFInfo
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- CN117042399A CN117042399A CN202311006752.4A CN202311006752A CN117042399A CN 117042399 A CN117042399 A CN 117042399A CN 202311006752 A CN202311006752 A CN 202311006752A CN 117042399 A CN117042399 A CN 117042399A
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- machine room
- water
- cooling
- equipment
- air
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- 238000001816 cooling Methods 0.000 title claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 239000000428 dust Substances 0.000 claims abstract description 42
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 235000013547 stew Nutrition 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
- H05K7/2079—Liquid cooling without phase change within rooms for removing heat from cabinets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application relates to an environment-friendly cooling system for a building site machine room, which comprises a system end and an equipment end, wherein the system end comprises a controller arranged in the machine room, and the controller is connected with an environment monitoring module, an equipment management module, a data processing module and an alarm module; the environment monitoring module is connected with a temperature and humidity sensor and an air quality sensor which are arranged outside the machine room; the equipment management module is connected with an air cooling device and water cooling equipment, the outer end of the machine room is provided with a plurality of atomizing spray heads connected with the water cooling equipment, and the air cooling device is connected with a dust gas interception ring; the device can dissipate heat of equipment in the machine room through water cooling when the quality of air outside the machine room is poor, water curtain can be formed at the air flow input end of the air cooling device by water cooling to filter air flow, and water and cold water after heat exchange can be used for spray dust fall of the surrounding environment of the machine room, hot water or cold water dust fall can be selected according to the external environment state of the environment during dust fall, and the device is energy-saving and environment-friendly.
Description
Technical Field
The application relates to an environment-friendly cooling system for a building site machine room, in particular to an environment-friendly cooling system for a building site machine room, which is applied to the field of environment protection.
Background
The present construction site safety management system relates to transmission and analysis of a large number of sensor detection data, transmission of monitoring videos, management of various posts and the like, and the present construction site is often provided with a machine room for installing corresponding equipment and a system server.
In order to solve the problems of long heat dissipation performance and maintenance period of a machine room, a certain machine room heat dissipation device in the market adopts a quick-disassembly structural design convenient to maintain and replace, and has a certain market occupation ratio.
The specification of Chinese patent No. 112954964A discloses a heat dissipating device for a communication base station machine room, which adopts the characteristic that a large temperature difference exists between an underground soil layer and the ground, a heat dissipating pipe is partially buried under the soil layer, and a water pump is used for controlling cooling liquid to circulate between the heat dissipating pipe and a heat dissipating channel, so that heat exchange between the machine room and the soil layer is realized.
In the prior art, ventilation fans are arranged on the walls of a machine room to realize indoor and outdoor air exchange so as to realize cooling of the interior of the machine room. However, when the outdoor air quality and humidity are poor, the machine room cannot be adjusted according to the heat dissipation measures of the external environment, so that the working equipment is damaged due to the influence of water vapor and dust gas, the service life of the working equipment is shortened, and the water and electric resource consumption of the existing machine room heat dissipation equipment is large.
Content of the application
Aiming at the prior art, the application aims to solve the technical problems that the existing machine room cannot be adjusted according to the heat dissipation measures of the external environment, so that the working equipment is damaged due to the influence of water vapor and dust gas, the service life of the working equipment is shortened, and the water and electric resource consumption of the existing machine room heat dissipation equipment is large.
In order to solve the problems, the application provides an environment-friendly cooling system for a building site machine room, which comprises a system end and an equipment end, wherein the system end comprises a controller arranged in the machine room, and the controller is connected with an environment monitoring module, an equipment management module, a data processing module and an alarm module;
the environment monitoring module is connected with a temperature and humidity sensor and an air quality sensor which are arranged outside the machine room;
the equipment management module is connected with an air cooling device and water cooling equipment, the outer end of the machine room is provided with a plurality of atomizing spray heads connected with the water cooling equipment, the air cooling device comprises an induced draft fan and an exhaust fan which are arranged on the machine room, the input end of the induced draft fan and the output end of the exhaust fan are both connected with air pipes, and the air pipes communicated with the input end of the induced draft fan are connected with dust gas interception rings;
the water cooling device comprises a water pump, the output end of the water pump is connected with a plurality of water cooling pipes, the output end of the water cooling pipes is connected with a first three-way valve, one output end of the first three-way valve is connected with a drain pipe, and the other output end of the first three-way valve is connected with a dust gas interception ring;
the dust gas interception ring comprises an annular frame arranged on the air pipe, the top end of the annular frame is fixedly connected with a diversion pipe communicated with the first three-way valve, the diversion pipe is fixedly connected with a water curtain generating pipe, the bottom end of the annular frame is fixedly connected with a liquid recovery channel matched with the water curtain generating pipe, and the liquid recovery channel is connected with a drain pipe.
The environment-friendly cooling system for the building site machine room is convenient to introduce air flow through water for equipment water cooling.
As a further improvement of the application, the output end of the drain pipe is connected with a purifying water tank and a standing cooling tank, the output ends of the purifying water tank and the standing cooling tank are connected with the input end of a water pump, and a water purifying device and a sedimentation tank are arranged in the purifying water tank.
As a further improvement of the application, a filter block is arranged in the air pipe, and the filter block comprises an air filter block and a moisture absorption block.
As a further improvement of the application, a plurality of equipment installation areas are arranged in the machine room, and a plurality of water cooling pipes respectively cover the plurality of equipment installation areas.
As a further improvement of the application, a humidity sensor is arranged in the induced draft fan.
As a further improvement supplement of the application, a guide ring is connected between the plurality of atomizing nozzles, and drainage tubes are connected between the output ends of the water cooling pipe and the water pump and the guide ring.
As a further improvement of the application, the outside of each water-cooled tube is provided with a temperature monitoring device for monitoring the device temperature at the corresponding position of the water-cooled tube.
As a further improvement of the application, the output end of the water cooling pipe is connected with a second three-way valve, and both output ends of the second three-way valve are respectively connected with the input end of the first three-way valve and the liquid discharge pipe.
In summary, heat dissipation of equipment in a machine room can be achieved through water cooling when the quality of air outside the machine room is poor, water curtain can be formed by water cooled discharged through water cooling at the air flow input end of an air cooling device to filter air flow, and the water cooled water after heat exchange can be used for spraying dust fall of the surrounding environment of the machine room, hot water or cold water dust fall can be selected according to the environment external state during dust fall, hot water after heat exchange with the equipment is conveniently utilized for hot water dust fall of the external environment of the machine room so as to improve heat utilization rate, and the machine room cooling device is energy-saving and environment-friendly
Drawings
FIG. 1 is a system block diagram of a first embodiment of the present application;
fig. 2 is a top cross-sectional view of a machine room according to a first embodiment of the application;
FIG. 3 is a perspective view of a dust gas interception ring according to a first embodiment of the present application;
FIG. 4 is a side cross-sectional view of a machine room in accordance with a second embodiment of the present application;
fig. 5 is a schematic diagram showing the piping connection topology of the water cooling apparatus according to the first and second embodiments of the present application.
The reference numerals in the figures illustrate:
1 machine room, 2 air cooling device, 201 induced draft fan, 202 tuber pipe, 203 filter block, 3 water-cooling equipment, 301 water pump, 302 water-cooling pipe, 4 dirt gas interception ring, 401 ring frame, 402 honeycomb duct, 403 water curtain generating pipe, 404 liquid recovery canal.
Detailed Description
Two embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment: 1-3 and 5 show an environment-friendly cooling system for a building site machine room, which comprises a system end and an equipment end, wherein the system end comprises a controller installed in the machine room 1, and the controller is connected with an environment monitoring module, an equipment management module, a data processing module and an alarm module;
the environment monitoring module is connected with a temperature and humidity sensor and an air quality sensor which are arranged outside the machine room 1;
the equipment management module is connected with an air cooling device 2 and water cooling equipment 3, the air cooling device 2 comprises an induced draft fan 201 and an exhaust fan which are arranged on the machine room 1, a humidity sensor is arranged in the induced draft fan 201, and the humidity sensor in the induced draft fan 201 is used for detecting the humidity of the introduced air flow; the input end of the induced draft fan 201 and the output end of the exhaust fan are both connected with an air pipe 202, a filter block 203 is arranged in the air pipe 202, and the filter block 203 comprises an air filter block and a moisture absorption block.
The water cooling device 3 comprises a water pump 301, wherein the output end of the water pump 301 is connected with a plurality of water cooling pipes 302, a plurality of device installation areas are arranged in the machine room 1, the plurality of water cooling pipes 302 respectively cover the plurality of device installation areas, the output end of the water cooling pipe 302 is connected with a first three-way valve, one output end of the first three-way valve is connected with a drain pipe, and the other output end of the first three-way valve is connected with a dust gas interception ring 4; the outside of each water-cooled tube 302 is provided with a temperature monitoring device for monitoring the device temperature at the corresponding position of the water-cooled tube 302. The output end of the water cooling pipe 302 is connected with a second three-way valve, and two output ends of the second three-way valve are respectively connected with the input end of the first three-way valve and the liquid discharge pipe.
Referring to fig. 3, a dust gas interception ring 4 is connected to an air pipe 202 communicated with an input end of an induced draft fan 201; the dust gas interception ring 4 comprises an annular frame 401 arranged on the air pipe 202, the top end of the annular frame 401 is fixedly connected with a flow guide pipe 402 communicated with the first three-way valve, the flow guide pipe 402 is fixedly connected with a water curtain generating pipe 403, the bottom end of the annular frame 401 is fixedly connected with a liquid recovery channel 404 matched with the water curtain generating pipe 403, and the liquid recovery channel 404 is connected with a drain pipe.
The output end of the drain pipe is connected with a purifying water tank and a standing cooling tank, the output ends of the purifying water tank and the standing cooling tank are connected with the input end of a water pump 301, and a water purifying device and a sedimentation tank are arranged in the purifying water tank;
when the first three-way valve is communicated with the dust gas interception ring 4, the output end of the drain pipe is communicated with the purification water tank, so that the dust gas interception ring 4 which absorbs external sand dust is led to the purification water tank for purification treatment and then is led to the water pump 301, and the dust gas interception ring 4 and the atomizing nozzle are ensured to be clean with water;
when the first three-way valve is disconnected with the dust gas interception ring 4, the output end of the drain pipe is communicated with the standing cooling box, and water flow discharged by the water cooling device 3 is cooled by the standing cooling box and then is conveyed to the water cooling device 3.
When the environment monitoring module detects that the air quality of the external environment of the machine room 1 is lower than a set value, a three-way valve on the first three-way valve is controlled to be communicated with the dust gas interception ring 4, at the moment, cooling water is discharged through the dust gas interception ring 4 to form a water curtain at the dust gas interception ring 4, at the moment, when the air cooling device 2 is used for introducing air, air filtration can be carried out through the water curtain, so that sand and dust in introduced air flow are reduced, the filtration load of 2012 and the filtration block 203 is reduced, and the service lives of the induced draft fan 201 and the filtration block 203 are easily prolonged;
when the equipment is water-cooled, when the temperature monitoring equipment on the water cooling pipe 302 detects that the temperature of the corresponding equipment exceeds a set value, the equipment is directly led to a liquid discharge pipe for discharge when cooling water is output by the water cooling pipe 302, so that the temperature of liquid discharged from the dust gas interception ring 4 is not easy to be too high, and the temperature of air flow introduced by the air cooling device 2 is not easy to be higher.
According to the scheme, heat dissipation of equipment in the machine room 1 can be achieved through water cooling when the quality of air outside the machine room 1 is poor, water curtain can be formed by water cooling and discharging water cooling at the air flow input end of the air cooling device 2 to filter air flow, cooling water and water curtain water can be recycled, water resources are easily saved, and the method is suitable for use in environmental areas with fewer water resources and more sand and dust.
Second embodiment
Fig. 1 and fig. 4 to 5 show that the environment monitoring module is connected with a temperature and humidity sensor and an air quality sensor which are arranged outside the machine room 1;
the outer end of the machine room 1 is provided with a plurality of atomizing nozzles connected with the water cooling equipment 3, a guide ring is connected between the atomizing nozzles, and drainage pipes are connected between the output ends of the water cooling pipe 302 and the water pump 301 and the guide ring.
Through air quality detection data analysis, when the external environment of the machine room 1 is dry and the dust emission is serious, the second three-way valve can be controlled to enable the water cooling pipe 302 to be communicated with the guide ring, at the moment, hot water output by the water cooling pipe 302 directly passes through the atomizing nozzle, hot water is used for dust fall through the atomizing nozzle, the hot water output by the water cooling pipe 302 is sprayed to humidify air and inhibit the dust emission, the hot water after heat exchange with equipment in the machine room 1 can be quickly evaporated and improve the air humidity, suspended particles are settled, the dust emission of the surrounding environment of the machine room 1 is reduced, and more dust emission is not easy to be introduced when the machine room 1 is ventilated.
When the external environment temperature is high and the dust is serious, the cooling water is directly input to the guide ring through the water pump 301, so that the ambient environment of the machine room humidifies the air, the dust suspension capacity is reduced, the ambient environment temperature of the machine room 1 is reduced to a certain extent, and the high-temperature air flow is not easy to be introduced when the air cooling device 2 introduces air into the machine room 1.
To sum up, this scheme can realize dispelling the heat to equipment in computer lab 1 through the water-cooling when the outside air quality of computer lab 1 is relatively poor, and water-cooling exhaust water-cooling can constitute the water curtain at air cooling device 2 air current input and filter the air current, and the water-cooling water after the heat transfer can be used to the spraying dust fall of computer lab 1 surrounding environment, can select hot water or cold water dust fall according to environment external state during the dust fall, conveniently utilize the hot water after the heat transfer with equipment 2 to carry out hot water dust fall to the computer lab 2 external environment in order to improve heat utilization, energy saving and environmental protection
According to the scheme, the air cooling device 2 for ventilation and heat radiation of the machine room 1 and the water cooling device 3 for heat radiation of equipment in the machine room 1 are managed in a unified mode, and synchronous and efficient heat radiation is easy to conduct on the machine room 1 and the equipment in the machine room 1.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (8)
1. Environment-friendly cooling system for building site computer lab, its characterized in that: the system comprises a system end and an equipment end, wherein the system end comprises a controller arranged in a machine room (1), and the controller is connected with an environment monitoring module, an equipment management module, a data processing module and an alarm module;
the environment monitoring module is connected with a temperature and humidity sensor and an air quality sensor which are arranged outside the machine room (1);
the equipment management module is connected with an air cooling device (2) and water cooling equipment (3), a plurality of atomizing spray heads connected with the water cooling equipment (3) are arranged at the outer end of the machine room (1), the air cooling device (2) comprises an induced draft fan (201) and an exhaust fan which are arranged on the machine room (1), an air pipe (202) is connected to the input end of the induced draft fan (201) and the output end of the exhaust fan, and a dust gas interception ring (4) is connected to the air pipe (202) communicated with the input end of the induced draft fan (201);
the water cooling device (3) comprises a water pump (301), wherein the output end of the water pump (301) is connected with a plurality of water cooling pipes (302), the output end of the water cooling pipes (302) is connected with a first three-way valve, one output end of the first three-way valve is connected with a drain pipe, and the other output end of the first three-way valve is connected with a dust gas interception ring (4);
the dust gas interception ring (4) comprises an annular frame (401) arranged on the air pipe (202), the top end of the annular frame (401) is fixedly connected with a flow guide pipe (402) communicated with the first three-way valve, the flow guide pipe (402) is fixedly connected with a water curtain generating pipe (403), the bottom end of the annular frame (401) is fixedly connected with a liquid recovery channel (404) matched with the water curtain generating pipe (403), and the liquid recovery channel (404) is connected with a drain pipe.
2. The environmental protection cooling system for a building site machine room of claim 1, wherein: the output of drain pipe is connected with clean water tank and cooling tank that stews, the clean water tank with the cooling tank that stews's output all is connected with water pump (301) input, install purifier and sedimentation tank in the clean water tank.
3. The environmental protection cooling system for a building site machine room of claim 2, wherein: a filter block (203) is arranged in the air pipe (202), and the filter block (203) comprises an air filter block and a moisture absorption block.
4. The environmental protection cooling system for a building site machine room according to claim 3, wherein: a plurality of equipment installation areas are arranged in the machine room (1), and a plurality of water cooling pipes (302) respectively cover the equipment installation areas.
5. The environmental protection cooling system for a building site machine room of claim 4, wherein: a humidity sensor is arranged in the induced air fan (201).
6. The environmental protection cooling system for a building site machine room of claim 5, wherein: a guide ring is connected between the atomizing nozzles, and drainage tubes are connected between the output ends of the water cooling tube (302) and the water pump (301) and the guide ring.
7. The environmental protection cooling system for a building site machine room of claim 6, wherein: and the outer side of each water cooling pipe (302) is provided with temperature monitoring equipment, and the temperature monitoring equipment is used for monitoring the equipment temperature at the corresponding position of the water cooling pipe (302).
8. The environmental protection cooling system for a building site machine room of claim 7, wherein: the output end of the water cooling pipe (302) is connected with a second three-way valve, and two output ends of the second three-way valve are respectively connected with the input end of the first three-way valve and the liquid discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311006752.4A CN117042399A (en) | 2023-08-11 | 2023-08-11 | Environment-friendly cooling system for building site machine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311006752.4A CN117042399A (en) | 2023-08-11 | 2023-08-11 | Environment-friendly cooling system for building site machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117042399A true CN117042399A (en) | 2023-11-10 |
Family
ID=88622261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311006752.4A Withdrawn CN117042399A (en) | 2023-08-11 | 2023-08-11 | Environment-friendly cooling system for building site machine room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117042399A (en) |
-
2023
- 2023-08-11 CN CN202311006752.4A patent/CN117042399A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20231110 |