CN109647092A - Air cooling system foreign matters from being blocked detection method, user equipment, storage medium and device - Google Patents
Air cooling system foreign matters from being blocked detection method, user equipment, storage medium and device Download PDFInfo
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- CN109647092A CN109647092A CN201811540360.5A CN201811540360A CN109647092A CN 109647092 A CN109647092 A CN 109647092A CN 201811540360 A CN201811540360 A CN 201811540360A CN 109647092 A CN109647092 A CN 109647092A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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- Chemical Kinetics & Catalysis (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses air cooling system foreign matters from being blocked detection method, user equipment, storage medium and devices.The target for detecting the first space of air cooling system in the present invention respectively flows into air pressure and the target stream in third space goes out air pressure；Enter wind pressure according to the target stream and the target stream goes out wind pressure, determines the draught head of the air cooling system；The chocking-up degree of the strainer in the air cooling system is judged according to the draught head；When the filter net jam degree is more than preset value, control equipment enters default operating condition.It in the present invention in filter net jam, reacts in time, prevents the blocking due to strainer from influencing system radiating, cause equipment downtime or cross cause thermal damage, improve the safety and reliability of air cooling system.
Description
Technical field
The present invention relates to detection field more particularly to air cooling system foreign matters from being blocked detection methods, user equipment, storage medium
And device.
Background technique
In the air blast cooling cooling system for having air duct and good seal, to prevent dust or other sundries from entering in system
Portion can install strainer in air inlet.In the case that if air duct were unobstructed, and rotation speed of the fan is constant, the atmospheric pressure of wind inlet of fan
Air outlet atmospheric pressure, but the two pressure difference very little can be less than.After the use time time, strainer often has stifled to a certain degree
Plug, leads to enter the wind that unsmooth or outlet air is unsmooth, then pressure difference can increase, and chocking-up degree is more severe, then pressure difference is bigger.
The increase of this pressure difference, influences system radiating, be easy to cause equipment downtime or crosses cause thermal damage, how to eliminate prevents from filtering
Net blocking causes equipment damage, is a problem to be solved.
Above content is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that above content is existing skill
Art.
Summary of the invention
The main purpose of the present invention is to provide air cooling system foreign matters from being blocked detection method, user equipment, storage medium and
Device, it is intended to solve the damage that equipment is avoided when filter net jam in the prior art.
To achieve the above object, the present invention provides a kind of air cooling system foreign matters from being blocked detection method, and the air cooling system is different
Object choke detecting method the following steps are included:
The target for detecting the first space of air cooling system respectively flows into air pressure and the target stream in third space goes out air pressure；
Enter wind pressure according to the target stream and the target stream goes out wind pressure, determines the draught head of the air cooling system；
The chocking-up degree of the strainer in the air cooling system is judged according to the draught head；
When the filter net jam degree is more than default occlusion threshold, control equipment enters default operating condition.
Preferably, the air cooling system first spatial flow of detection respectively enters air pressure and third spatial flow outlet pressure includes:
According to the inflow air pressure and outflow air pressure of predetermined period continuous sampling preset times；
Seek the average value of the average value of the inflow air pressure of preset times and the outflow air pressure of preset times；
Air pressure is flowed into using the average value for flowing into air pressure as target, and using the average value of the outflow air pressure as mesh
Mark outflow air pressure.
Preferably, described wind pressure to be entered according to the target stream and the target stream goes out wind pressure, determine the air cooling system
Draught head, comprising:
The target stream is entered into wind pressure and the target stream outlet air pressure make poor, the gas of the air cooling system is calculated
Pressure difference.
Preferably, the chocking-up degree that the strainer in the air cooling system is judged according to the draught head, comprising:
The draught head is compared with preset pressure threshold value, judges whether draught head is in setting air pressure range；
When draught head is in setting air pressure range, it is determined as that strainer is unplugged；When draught head is not in setting air pressure range,
It is determined as filter net jam.
Preferably, described in the filter net jam, control equipment enters default operating condition, comprising:
In the filter net jam, control equipment is out of service, and sends prompt information to default terminal.
Preferably, described after judging whether the strainer in the air cooling system blocks according to the draught head described
Air cooling system foreign matters from being blocked detection method further include:
According to the pressure difference, the chocking-up degree grade of strainer is obtained by tabling look-up, and the chocking-up degree grade is opened up
Show.
Preferably, described that the chocking-up degree grade of strainer is obtained by tabling look-up according to the pressure difference, by the chocking-up degree
Grade be shown after, in the filter net jam, control equipment enter before default operating condition, the air cooling system is different
Object choke detecting method further include:
The chocking-up degree grade is compared with predetermined level threshold value, when the chocking-up degree grade is higher than described pre-
If when grade threshold, controlling radiator fan downrating or closing fan operation.
To achieve the above object, the present invention proposes that a kind of user equipment, the user equipment include: memory, processor
And it is stored on the memory and air cooling system foreign matters from being blocked detection program, the air-cooled system can be run on the processor
System foreign matters from being blocked detection program realizes air cooling system foreign matters from being blocked detection method as described above when being executed by the processor
Step.
To achieve the above object, the present invention proposes a kind of storage medium, and it is different to be stored with air cooling system on the storage medium
Object jam detection program, the air cooling system foreign matters from being blocked detection program realize air-cooled system as described above when being executed by processor
The step of foreign matters from being blocked detection method of uniting.
To achieve the above object, the present invention proposes a kind of air cooling system foreign matters from being blocked detection device, and the air cooling system is different
Object blockage detector includes:
Detection module, the target for detecting the first space of air cooling system respectively flow into the target stream in air pressure and third space
Air pressure out；
Computing module determines the air cooling system for entering wind pressure according to the target stream and the target stream goes out wind pressure
Draught head；
Judgment module, for judging the chocking-up degree of the strainer in the air cooling system according to the draught head；
Execution module, for when the filter net jam degree is more than default occlusion threshold, control equipment to enter default work
Make state.
Technical solution of the present invention flows into the target of air pressure and third space by the target in analysis the first space of air cooling system
The draught head of air pressure is flowed out, thus obtain the chocking-up degree of strainer, and when filter net jam degree is more than default occlusion threshold, and
When react, prevent due to strainer blocking influence system radiating, cause equipment downtime or cross cause thermal damage, improve air-cooled system
The safety and reliability of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the embodiment of the present invention air cooling system；
Fig. 2 is the flow diagram of air cooling system foreign matters from being blocked detection method first embodiment of the present invention；
The specific steps that Fig. 3 is S100 in Fig. 2 refine figure；
Fig. 4 is the functional block diagram of one embodiment of air cooling system foreign matters from being blocked detection device of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The user equipment can be a kind of high-power electric equipment, such as against inverter, current transformer etc..The high-power electricity
Power equipment further includes having an air cooling system.
Referring to Fig.1, in one embodiment, air cooling system includes strainer, fan, radiator and shell.Each component is in shell
It is successively installed according to sequencing in vivo, gasket is installed between component and shell, it is ensured that wind-force is in order from strainer, wind
Fan, radiator pass sequentially through, and will not leak out or form circulation.
According to different air pressures, cooling system can be divided into 3 spaces: outside strainer identical with ambient atmosphere pressure
Strainer back space (space 2, i.e. second space) between space (space 1, i.e. the first space), strainer and fan, fan and
Fan back space (space 3, i.e. third space) between radiator.When fan stops working, pressure is equal between each space.
When fan running, there is some difference for the air pressure in each space, and in synchronization, pressure difference value is determined by the chocking-up degree of air inlet strainer
It is fixed.When fan running, 3 air pressures of space > space, 2 air pressure, pressure difference and filter net jam degree have certain proportionate relationship, according to pressure
Power difference may determine that filter net jam degree, and pressure difference is bigger, block more serious.
In one embodiment, it is the air pressure in space 2 that target, which flows into air pressure, and it is space that the target stream in third space, which goes out air pressure,
Air pressure in 3.
Based on above-mentioned hardware configuration, the embodiment of air cooling system foreign matters from being blocked detection method of the present invention is proposed.
It is the flow diagram of air cooling system foreign matters from being blocked detection method first embodiment of the present invention referring to Fig. 2, Fig. 2.
Detection method includes the following steps for the air cooling system foreign matters from being blocked:
S100: the target for detecting the first space of air cooling system respectively flows into air pressure and the target stream in third space goes out air pressure.
In the present embodiment, air pressure is detected by baroceptor.Usual target stream goes out air pressure and flows into air pressure greater than target.
S200: wind pressure is entered according to the target stream and the target stream goes out wind pressure, determines the draught head of the air cooling system.
It should be noted that can enter wind pressure in actually calculating by the multiple target streams of sampling and the target stream goes out wind pressure, then seek
Average value determines the draught head.Draught head has reacted the chocking-up degree of strainer.
The corresponding relationship of draught head Yu filter net jam degree can be obtained by experiment in advance, and by the corresponding relationship
Data are stored in user equipment.Therefore, in air cooling system operation, the chocking-up degree of strainer can be obtained by draught head.
S300: the chocking-up degree of the strainer in the air cooling system is judged according to the draught head.According to filter net jam pair
Filter net jam degree can be classified by the influence degree of equipment.For example, slight blocking, medium blocking can be divided into and seriously blocked up
Plug.According to different chocking-up degrees, controls equipment and make different reactions.
S400: when the filter net jam degree is more than default occlusion threshold, control equipment enters default operating condition.It should
Default operating condition can be run with equipment downtime, be also possible to reduce Power operation.In this way, the heat dissipation capacity of equipment can be reduced,
It avoids causing equipment heating amount to steeply rise and cause the damage to equipment because of filter net jam.
Technical solution of the present invention flows into the target of air pressure and third space by the target in analysis the first space of air cooling system
The draught head for flowing out air pressure, to show whether strainer blocks, and in filter net jam, reacts in time, prevents due to filter
The blocking of net influences system radiating, causes equipment downtime or crosses cause thermal damage, improves the safety and reliability of air cooling system.
Referring to Fig. 3, specifically, the air cooling system first spatial flow of detection respectively enters air pressure and third spatial flow goes out air pressure
Include:
S110: according to the inflow air pressure and outflow air pressure of predetermined period continuous sampling preset times.Predetermined period can be according to
Actual demand and set.In the present embodiment, preset times can be 5 times.
S120: the average value of the average value of the inflow air pressure of preset times and the outflow air pressure of preset times is sought.It will
The inflow air pressure summation of continuous 5 samplings, then divided by 5, obtain the average value for flowing into air pressure.Similarly, the stream continuous 5 times sampled
Air pressure is summed out, then divided by 5, obtains the average value of outflow air pressure.Wherein, outflow air pressure is the air pressure sampled at space 3, is flowed into
Air pressure is the air pressure sampled at space 2.
S130: using it is described flow into air pressure average value as target flow into air pressure, and by it is described flow out air pressure average value
Go out air pressure as target stream.
Specifically, described wind pressure to be entered according to the target stream and the target stream goes out wind pressure, determine the air cooling system
Draught head, comprising:
The target stream is entered into wind pressure and the target stream outlet air pressure make poor, the gas of the air cooling system is calculated
Pressure difference.In the present embodiment, it is target stream is gone out to wind pressure to subtract target stream to enter wind pressure, obtains the draught head of the air cooling system.
It is specifically, described to judge whether the strainer in the air cooling system blocks according to the draught head, comprising:
The draught head is compared with preset pressure threshold value, judges whether draught head is in setting air pressure range；
When draught head is in setting air pressure range, it is determined as that strainer is unplugged；When draught head is not in setting air pressure range,
It is determined as filter net jam.
In the present embodiment, if there are three preset pressure threshold value, respectively A, B, C and D, wherein A < B < C, and A, B and C are equal
For positive number.A, B and C can be set according to actual needs and flexibly.
As draught head < A, show that strainer is unplugged, is in normal condition；As A < draught head < B, show at strainer
In slight blocked state；As B < draught head < C, show that strainer is in medium blocked state and shows to filter as draught head > C
Net is in Severe blockage state.
, it is based on above-mentioned first embodiment shown in Fig. 2, proposes the second of air cooling system foreign matters from being blocked detection method of the present invention
Embodiment.
In a second embodiment, described in the filter net jam, control equipment enters default operating condition, comprising:
In the filter net jam, control equipment is out of service, and sends prompt information to default terminal.It is runed to allow
Personnel know equipment running status in time, can be by the contact method of operation personnel, including phone number and mailbox.Work as filter net jam
When issue information warning in time, with prompt operation personnel clear up or replacement strainer.
Based on above-mentioned first embodiment shown in Fig. 2, the third of air cooling system foreign matters from being blocked detection method of the present invention is proposed
Embodiment.
In the third embodiment, the chocking-up degree of the strainer in the air cooling system is judged according to the draught head described
Later, the air cooling system foreign matters from being blocked detection method further include:
According to the pressure difference, the chocking-up degree grade of strainer is obtained by tabling look-up, and the chocking-up degree grade is opened up
Show.In the present embodiment, if there are three preset pressure threshold value, respectively A, B, C and D, wherein A < B < C, and A, B and C are positive
Number.A, B and C can be set according to actual needs and flexibly.After being identified, pass through the result of display screen display identification.It is convenient for
Operation personnel is notified in time.
It is described according to the pressure difference in the present embodiment for the safety for increasing equipment operation, strainer is obtained by tabling look-up
Chocking-up degree grade, after the chocking-up degree grade is shown, in the filter net jam, control equipment enters default
Before working condition, the air cooling system foreign matters from being blocked detection method further include:
The chocking-up degree grade is compared with predetermined level threshold value, when the chocking-up degree grade is higher than described pre-
If when grade threshold, controlling radiator fan downrating or closing fan operation.It can be readily appreciated that when pressure difference is excessive
When, the fan to run at high speed is easily damaged.Therefore, rotation speed of the fan is reduced, the damage of fan is avoided.
To achieve the above object, the present invention proposes that a kind of user equipment, the user equipment include: memory, processor
And it is stored on the memory and air cooling system foreign matters from being blocked detection program, the air-cooled system can be run on the processor
System foreign matters from being blocked detection program realizes air cooling system foreign matters from being blocked detection method as described above when being executed by the processor
Step.
To achieve the above object, the present invention proposes a kind of storage medium, and it is different to be stored with air cooling system on the storage medium
Object jam detection program, the air cooling system foreign matters from being blocked detection program realize air-cooled system as described above when being executed by processor
The step of foreign matters from being blocked detection method of uniting.
Referring to Fig. 4, to achieve the above object, the present invention proposes a kind of air cooling system foreign matters from being blocked detection device, the wind
Cooling system foreign matters from being blocked detection device includes:
Detection module 10, the target for detecting the first space of air cooling system respectively flow into the target in air pressure and third space
Flow out air pressure.In the present embodiment, air pressure is detected by baroceptor.Usual target stream goes out air pressure greater than target stream
Enter air pressure.
Computing module 20 determines the air-cooled system for entering wind pressure according to the target stream and the target stream goes out wind pressure
The draught head of system.It should be noted that in actually calculating wind pressure and target outflow can be entered by sampling multiple target streams
Wind pressure, then averaged determine the draught head.Draught head has reacted the chocking-up degree of strainer.
The corresponding relationship of draught head Yu filter net jam degree can be obtained by experiment in advance, and by the corresponding relationship
Data are stored in user equipment.Therefore, in air cooling system operation, the chocking-up degree of strainer can be obtained by draught head.
Judgment module 30, for judging the chocking-up degree of the strainer in the air cooling system according to the draught head.According to
Filter net jam degree can be classified the influence degree of equipment by filter net jam.It slightly blocks for example, can be divided into, is medium stifled
Plug and Severe blockage.According to different chocking-up degrees, controls equipment and make different reactions.
Execution module 40, for when the filter net jam degree is more than default occlusion threshold, control equipment to enter default
Working condition.The default operating condition can be run with equipment downtime, be also possible to reduce Power operation.It is set in this way, can reduce
Standby heat dissipation capacity avoids causing equipment heating amount to steeply rise and cause the damage to equipment because of filter net jam.
Further, the detection module 10 is used for inflow air pressure and stream according to predetermined period continuous sampling preset times
Air pressure out；Seek the average value of the average value of the inflow air pressure of preset times and the outflow air pressure of preset times；By the stream
The average value for entering air pressure flows into air pressure as target, and the average value of the outflow air pressure is gone out air pressure as target stream.
Further, the computing module 20 is made for the target stream to be entered wind pressure with the target stream outlet air pressure
The draught head of the air cooling system is calculated in difference.
Further, the judgment module 30 judges gas for the draught head to be compared with preset pressure threshold value
Whether pressure difference is in setting air pressure range；When draught head is in setting air pressure range, it is determined as that strainer is unplugged；In gas
When pressure difference is not in setting air pressure range, it is determined as filter net jam.
Further, the execution module 40 is used in the filter net jam, and control equipment is out of service, and to default
Terminal sends prompt information.
Further, the execution module 40 is also used to obtain the chocking-up degree of strainer by tabling look-up according to the pressure difference
The chocking-up degree grade is shown by grade.
Further, the execution module 40 is also used to compare the chocking-up degree grade with predetermined level threshold value
Compared with, when the chocking-up degree grade is higher than the predetermined level threshold value, control radiator fan downrating or closing wind
Fan operation.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.Word first, second, with
And the use of third etc. does not indicate any sequence, these words can be construed to title.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of air cooling system foreign matters from being blocked detection method, which is characterized in that the air cooling system foreign matters from being blocked detection method packet
Include following steps:
The target for detecting the first space of air cooling system respectively flows into air pressure and the target stream in third space goes out air pressure；
Enter wind pressure according to the target stream and the target stream goes out wind pressure, determines the draught head of the air cooling system；
The chocking-up degree of the strainer in the air cooling system is judged according to the draught head；
When the filter net jam degree is more than default occlusion threshold, control equipment enters default operating condition.
2. air cooling system foreign matters from being blocked detection method as described in claim 1, which is characterized in that described to detect air-cooled system respectively
System first spatial flow enters air pressure and third spatial flow outlet pressure includes:
According to the inflow air pressure and outflow air pressure of predetermined period continuous sampling preset times；
Seek the average value of the average value of the inflow air pressure of preset times and the outflow air pressure of preset times；
Air pressure is flowed into using the average value for flowing into air pressure as target, and using the average value of the outflow air pressure as target stream
Air pressure out.
3. air cooling system foreign matters from being blocked detection method as claimed in claim 2, which is characterized in that described according to the target stream
Enter wind pressure and the target stream go out wind pressure, determines the draught head of the air cooling system, comprising:
The target stream is entered into wind pressure and the target stream outlet air pressure make poor, the air pressure of the air cooling system is calculated
Difference.
4. air cooling system foreign matters from being blocked detection method as claimed in claim 3, which is characterized in that described according to the draught head
Judge the chocking-up degree of the strainer in the air cooling system, comprising:
The draught head is compared with preset pressure threshold value, judges whether draught head is in setting air pressure range；In gas
When pressure difference is in setting air pressure range, it is determined as that strainer is unplugged；When draught head is not in setting air pressure range, determine
For filter net jam.
5. air cooling system foreign matters from being blocked detection method as described in claim 1, which is characterized in that described in the filter net jam
When, control equipment enters default operating condition, comprising:
In the filter net jam, control equipment is out of service, and sends prompt information to default terminal.
6. air cooling system foreign matters from being blocked detection method as claimed in claim 5, which is characterized in that described according to the air pressure
After difference judges whether the strainer in the air cooling system blocks, the air cooling system foreign matters from being blocked detection method further include:
According to the pressure difference, the chocking-up degree grade of strainer is obtained by tabling look-up, and the chocking-up degree grade is shown.
7. air cooling system foreign matters from being blocked detection method as claimed in claim 6, which is characterized in that it is described according to the pressure difference,
The chocking-up degree grade that strainer is obtained by tabling look-up, after the chocking-up degree grade is shown, in the filter net jam
When, control equipment enters before default operating condition, the air cooling system foreign matters from being blocked detection method further include:
The chocking-up degree grade is compared with predetermined level threshold value, when the chocking-up degree grade be higher than it is described default etc.
When grade threshold value, controls radiator fan downrating or close fan operation.
8. a kind of user equipment, which is characterized in that the user equipment includes: memory, processor and is stored in the storage
Air cooling system foreign matters from being blocked detection program can be run on device and on the processor, the air cooling system foreign matters from being blocked detects journey
The air cooling system foreign matters from being blocked detection method as described in any one of claims 1 to 7 is realized when sequence is executed by the processor
The step of.
9. a kind of storage medium, which is characterized in that be stored with air cooling system foreign matters from being blocked detection program, institute on the storage medium
It is air-cooled as described in any one of claims 1 to 7 to state realization when air cooling system foreign matters from being blocked detection program is executed by processor
The step of system foreign matters from being blocked detection method.
10. a kind of air cooling system foreign matters from being blocked detection device, which is characterized in that the air cooling system foreign matters from being blocked detection device packet
It includes:
Detection module, the target for detecting the first space of air cooling system respectively flow into the target stream outlet in air pressure and third space
Pressure；
Computing module determines the gas of the air cooling system for entering wind pressure according to the target stream and the target stream goes out wind pressure
Pressure difference；
Judgment module, for judging the chocking-up degree of the strainer in the air cooling system according to the draught head；
Execution module, for when the filter net jam degree is more than default occlusion threshold, control equipment to enter default work shape
State.
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| CN112337231A (en) * | 2019-08-07 | 2021-02-09 | 广达电脑股份有限公司 | Electronic device with air filter and method for monitoring air filter state |
| CN114876847A (en) * | 2022-06-02 | 2022-08-09 | 上海茂控机电设备有限公司 | Vortex fan control method and system, storage medium and intelligent terminal |
| CN115116704A (en) * | 2022-06-17 | 2022-09-27 | 华能桐乡燃机热电有限责任公司 | Automatic cleaning device for cooler of oil-immersed transformer |
| CN118327940A (en) * | 2024-06-17 | 2024-07-12 | 上海嵘熵动力科技有限公司 | Dragon cyclone filter screen vacuum pump system applied to paper towel folding machine |
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| CN110588679A (en) * | 2019-10-22 | 2019-12-20 | 中车资阳机车有限公司 | Distributed air supply duct structure of air conditioner in cab of shunting locomotive |
| CN114876847A (en) * | 2022-06-02 | 2022-08-09 | 上海茂控机电设备有限公司 | Vortex fan control method and system, storage medium and intelligent terminal |
| CN114876847B (en) * | 2022-06-02 | 2024-05-28 | 上海茂控机电设备有限公司 | Vortex fan control method, system, storage medium and intelligent terminal |
| CN115116704A (en) * | 2022-06-17 | 2022-09-27 | 华能桐乡燃机热电有限责任公司 | Automatic cleaning device for cooler of oil-immersed transformer |
| CN118327940A (en) * | 2024-06-17 | 2024-07-12 | 上海嵘熵动力科技有限公司 | Dragon cyclone filter screen vacuum pump system applied to paper towel folding machine |
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Application publication date: 20190419 |