CN209186737U - A kind of air cooling equipment of PET device - Google Patents
A kind of air cooling equipment of PET device Download PDFInfo
- Publication number
- CN209186737U CN209186737U CN201820519706.2U CN201820519706U CN209186737U CN 209186737 U CN209186737 U CN 209186737U CN 201820519706 U CN201820519706 U CN 201820519706U CN 209186737 U CN209186737 U CN 209186737U
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- Prior art keywords
- air
- air intake
- detector
- component
- cooling equipment
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- 238000001816 cooling Methods 0.000 title claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 29
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- 150000002304 glucoses Chemical class 0.000 description 1
- 229930182851 human metabolite Natural products 0.000 description 1
- 239000012216 imaging agent Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000006680 metabolic alteration Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The utility model discloses a kind of air cooling equipment of PET device, including be set in detector rings air intake assembly, in at least air intake passage formed in detector, the wind chamber component being fixed on installation backboard and the air draft component being connected to wind chamber component;Air intake assembly is respectively communicated with outer low temperature gas, each air intake passage, and cryogenic gas is driven to enter in air intake passage;Whole air intake passages are connected to setting with wind chamber component and enter in wind chamber component after cryogenic gas passes through detector progress heat exchange via air intake passage;Wind chamber component is located at the side backwards of detector rings mounting surface, covers whole air intake passages, and cooperatively form semi-open environment with installation backboard;Air draft component is connected to wind chamber component and outside respectively, to drive the gas in wind chamber component Jing Guo heat exchange to be expelled to outside PET device.Device driving gas flows in the space of restriction along pre-determined route, can effectively realize heat dissipation.
Description
Technical field
The utility model relates to medical instruments fields, are related to the radiator structure of a kind of PET device, especially PET device.
Background technique
PET scanner plays huge effect in medical diagnosis now.Positron emission fault
Scanner detects lesion to imaging using human metabolites such as positron radionuclide labelled glucoses as imaging agent, by detector
The intake of agent reflects its metabolic alterations, to provide the biological metabolism information of disease for clinic.Its image-forming principle is: positive electron
A positive electron emitting is buried in oblivion with the free electron in tissue in conjunction with when nucleic decays, be converted into both direction on the contrary,
Energy is respectively the γ photon of 511KeV.When opposite direction is arranged in the scintillation detector on emitter both sides while receiving this pair of γ photon
When, determine that the nucleic is located on the line (being known as meeting line, LOR) of two probes, this detection mode is exactly to meet spy
It surveys.Image weight is carried out to the sensing point for the carrying spatial positional information that all directions detect by the algorithm for reconstructing of computer
It builds, obtains the distribution in nucleic space in vivo, just generate the image with positron radionuclide information.
In order to obtain steady and audible scan image, detector and electronics in PET scanner need
Work is under a suitable and stable temperature environment.Temperature raising can dramatically increase system noise, temperature fluctuation can cause be
System drift, to reduce picture quality.Therefore cooling system is the critical component for guaranteeing PET scanner quality
One of.
Utility model content
The utility model discloses a kind of air cooling equipment of PET device, when work, gas under the driving of air cooling equipment,
It is flowed in the space of restriction along pre-determined route, can effectively realize heat dissipation.
In order to achieve the above objectives, the solution of the utility model is:
The utility model provides a kind of air cooling equipment of PET device, and the PET device includes shell, is set to described
Multiple detectors and installation backboard, the multiple detector in shell are fixed on the installation backboard, and around described
The scanning channel setting of PET device to form detector rings, the air cooling equipment include be set in the detector rings into
At least air intake passage that is formed in wind component, Yu Suoshu detector, the wind chamber component being fixed on the installation backboard and
The air draft component being connected to the wind chamber component;The air intake assembly is respectively communicated with outer low temperature gas, each air intake passage, and
The cryogenic gas is driven to enter in the air intake passage;All the air intake passage is connected to setting, institute with the wind chamber component
State cryogenic gas via the air intake passage pass through the detector carry out heat exchange after, enter in the wind chamber component;Institute
State wind chamber component be located at the detector rings mounting surface backwards to side, the whole air intake passages of covering, and with the installation
Backboard cooperatively forms semi-open environment;The air draft component is connected to the wind chamber component and outside respectively, described in driving
Gas in wind chamber component Jing Guo heat exchange is expelled to outside PET device.
As a preferred embodiment, the air intake assembly is fan component comprising multiple fans and for described in fixed
The mounting rack of fan, the mounting rack are fixed on the probe body, and the fan is via the mounting rack and the spy
It surveys device ring to be fixedly linked, and multiple fan coverings all air intake passage settings.
Further, the air intake assembly includes multiple mounting racks, and the mounting rack is sector structure, each mounting rack
It is individually fixed on several adjacent detector shells, and is also arranged in a ring around the scanning channel of the PET device, Mei Gean
It shelves and is equipped with multiple installation stations for installing the fan.
Further, upper layer and lower layer fan is arranged in parallel in the air intake assembly.
As a preferred embodiment, the air intake assembly further includes monitoring modular, the monitoring modular and whole fans
Communication connection, to judge whether the fan is in normal operating conditions according to the status feedback signal of the fan.
As a preferred embodiment, institute's air intake passage includes an air inlet and an air outlet and a notch, the air inlet
It is formed with air outlet in aperture on the opposite side body of the detector, notch shape on the installation backboard in corresponding position
At to provide channel into air-inlet chamber component via detector for the cryogenic gas.
Preferably, the air intake passage further includes a cooling airway, the cooling airway be located at the air inlet with it is described
Between air outlet, formed by the cooling fin being set on the detector circuit plate.
As a preferred embodiment, the wind chamber component be toroidal cavity structure, including cavity ontology, air exhaust passage and
An at least connecting plate on cavity ontology is set;The cavity ontology is the toroidal cavity of a side opening, logical around scanning
Road setting, the whole air intake passages of the open side covering of the cavity ontology, and the cavity ontology and the installation backboard,
The air exhaust passage cooperatively forms half open environment;Described wind output channel one end is connected to the cavity ontology, the air draft
The other end in channel is connected to setting with the air draft component and outside, provides channel to flow out the air cooling equipment for gas;
The connecting plate is set to the outer edge of the cavity ontology, for the cavity ontology to be fixed on the installation backboard
On.
Further, fixed air draft component inside the wind output channel, to drive in the wind chamber component by heat exchange
Gas be expelled to outside.
Preferably, the quantity of the air draft component is corresponding to the wind output channel is arranged.
Further, the cavity ontology includes at least two chambers, and the chamber splicing forms the cavity ontology,
It is not connected to each other between adjacent chamber, and each chamber is connected to setting with an air draft component.
Or the cavity ontology is integral structure.
Preferably, the air draft component is exhaust fan.
The air cooling equipment of PET device shown in the utility model passes through air intake passage, wind chamber component and installation backboard
Cooperation, entire radiation processes is limited in certain space, so that the other equipment such as detector thermal environment and CT be separated, is kept away
Exempt from the mutual heat affecting between PET device and other working equipments;Air intake passage is logical for the disengaging that detector provides cryogenic gas
Road, wind chamber component be high-temperature gas by heat exchange provide, stand in channel, pre-determined route is provided to flow for gas, in PET
When equipment works, gas flows in the space of restriction along pre-determined route under the driving of air intake assembly and air draft component, from
And effectively realize heat dissipation.
Detailed description of the invention
Fig. 1 is one embodiment of air cooling equipment mounting structure schematic diagram in PET rack;
Fig. 2 is the rearview of embodiment illustrated in fig. 1;
Fig. 3 is the side view of embodiment illustrated in fig. 1;
Fig. 4 is the top view of embodiment illustrated in fig. 1.
Fig. 5 is the structural schematic diagram of air intake passage in embodiment illustrated in fig. 1;
Fig. 6 is the structural schematic diagram of air intake assembly in embodiment illustrated in fig. 1;
Fig. 7 is the rearview of air intake assembly shown in Fig. 6;
Fig. 8 is the structural schematic diagram of embodiment illustrated in fig. 1 apoplexy chamber component.
Specific embodiment
PET device generally comprises shell, and rack, the installation backboard being fixed on the rack inside the shell is arranged, and installs backboard
Multiple detectors 50 are arranged in the upper scanning channel around PET device, and above-mentioned detector 50 forms detector rings.PET device work
When, detector 50 and associated component can issue a large amount of heat, the utility model discloses a kind of air cooling equipment of PET device,
It is mounted on PET device interior of shell, for the heat dissipation for detector and related work component.
As shown in Figures 1 to 4, air cooling equipment includes the air intake assembly 10 being set in detector rings, in shape in detector
At an at least air intake passage 20, the wind chamber component 30 that is fixed on installation backboard and the air draft group that is connected to wind chamber component
Part 40.Air intake assembly 10 and outer low temperature gas, each air intake passage 20 are respectively communicated with setting, and outer low temperature gas is driven to enter
Into each air intake passage 20;Each air intake passage 20 is connected to setting with wind chamber component 30, and cryogenic gas is worn via each air intake passage 20
Cross detector 50 carry out heat exchange after, enter in wind chamber component 30;Above-mentioned wind chamber component 30 is located at detector rings mounting surface
Backwards to side (on the face backwards for being located at detection ring mounting surface), whole air intake passages 20 are covered, and are cooperated with installation backboard 60
Semi-open environment is formed, it is above-mentioned to enter to wind chamber component 30 and installation after the cryogenic gas of heat exchange passes through air intake passage 20
Backboard 60 is formed by semi-open environment;Air draft component 40 is connected to wind chamber component 30 and outside respectively, to drive wind chamber
Gas in component 30 Jing Guo heat exchange is expelled to outside PET device (external if the equipment such as PET device and CT are applied in combination
Refer to the outside of equipment entirety).
Above-mentioned air cooling equipment will entirely be radiated by air intake passage 20, wind chamber component 30 and the cooperation for installing backboard 60
Process is limited in certain space, so that the other equipment such as 50 thermal environment of detector and CT be separated, avoids PET device and its
Mutual heat affecting between his working equipment;Air intake passage 20 is that detector 50 provides the access way of cryogenic gas, wind chamber group
Part 30 be high-temperature gas by heat exchange provide, stand in channel, pre-determined route is provided to flow for gas, in PET device work
When making, gas flows in the space of restriction along pre-determined route under the driving of air intake assembly 10 and air draft component 40, thus
Effectively realize heat dissipation.Specific work process is as described below: after outer low temperature gas enters to PET device inside, in air intake assembly
It is reached under 10 driving in the air intake passage 20 inside each detector 50, so that heat exchange is carried out, the gas after heat exchange
Under the driving of air intake assembly 10 and air draft component 40, further to wind chamber component 30 with installation backboard 60 formed it is semi-open
It in environment, then drives, is expelled to outside PET device via air draft component 40, repeat the above process to realize entire PET
The cooling work of equipment.
It elaborates below in conjunction with specific attached drawing to specific embodiment of the present utility model, illustrates in the following description
Detail is in order to fully understanding the utility model.But the utility model can with it is a variety of be different from it is described herein its
His mode is implemented.Those skilled in the art can do similar popularization without prejudice to the utility model connotation, therefore,
The utility model is not limited by following public specific embodiment.
It is mentioned as shown in figure 5, the main function of air intake passage 20 is to enter in each detector 50 for outer low temperature air
For channel.In the present embodiment, as a preferred embodiment, an air intake passage 20 is respectively formed in each detector 50, each air inlet is logical
Road 20 includes the aperture on the opposite side body of detector 50 of an air inlet and an air outlet and a notch, air inlet and air outlet
It is formed, notch is formed on installation backboard 60 in corresponding position, provides channel to enter detector 50 for cryogenic gas.Meanwhile
In the present embodiment, each air intake passage 20 further includes a cooling airway, and cooling airway is between air inlet and air outlet, by setting
The formation of cooling fin 21 being placed on 50 circuit board of detector issues detector 50 to increase the radiating surface of detector 50
Heat more effectively conducts.
As shown in Figure 6 and Figure 7, the main function of air intake assembly 10 is that outer low temperature gas is driven to enter to detector
In the air intake passage 20 of 50, especially detector 50, to realize heat exchange, in the present embodiment, air intake assembly 10 is fan component,
It includes multiple fans 1111 and the mounting rack 1212 for fan attachment 11, and fan 11 is via mounting rack 12 and detector rings
It is fixedly linked, and multiple fans 11 cover the air inlet setting of whole air intake passages 20, to drive cryogenic gas to enter air inlet
In channel 20.
For the ease of the processing and installation of air intake assembly 10, air intake assembly 10 is separate structure comprising multiple mounting racks
12, multiple mounting racks 12 are individually fixed on 50 shell of detector, and are arranged in a ring around the scanning channel of PET device, often
A mounting rack 12 is equipped with multiple installation stations so that for installing several groups fan 11, multiple fans 11 in each mounting rack 12 are distinguished
Cover the setting of several air intake passages 20 (air inlet).
As a preferred embodiment, mounting rack 12 is sector structure, is respectively provided with the erector of fan attachment 11 thereon
Position, the mounting rack 12 of each sector structure are separately fixed on 50 shell of several groups detector, the fan 11 on one group of mounting rack 12
Cover the air intake passage 20 on corresponding detector 50.Multiple mounting racks 12 are spliced to form an annulus, and each station of installing is installed respectively
After fan 11, each fan 11 is covered each by different 50 air inlets of detector, and multiple fans 11 are also around the scanning of PET device
Channel is arranged in a ring.
Further, in order to more effectively realize the heat dissipation of detector 50, upper layer and lower layer are set on each mounting rack 12
Station is installed, is enclosed with fan 11 inside and outside for fixing upper layer and lower layer fan 11, i.e., including in fan component, corresponding above-mentioned wind
Fan 11 encloses, and two groups of air intake passages 20 up and down are respectively formed on each detector 50.
In the present embodiment, 11 monitoring module of fan is also set up, monitoring modular and whole fans 11 communicate to connect, with root
Judge whether the fan 11 is in normal operating conditions according to the status feedback signal of the fan 11.Wherein status feedback signal
It can be electric current or voltage signal, monitoring module can be the controller in 50 front-end electronics circuit of detector, such as MCU, FPGA
Deng controller is separately connected with each fan 11, judges its whether normal work with the voltage or current signal that feed back according to fan 11
Make.
In addition to using said fans component, air intake assembly 10 is also air blower, realizes that driving outside air enters to detection
In device 50.
There are many methods may be implemented in addition, outer low temperature air enters in PET device, lattice are such as set in device housings
Grid etc..
As shown in figure 8, wind chamber component 30 is toroidal cavity structure, including wind output channel 31, cavity ontology 32 and setting
An at least connecting plate 33 on cavity ontology.Cavity ontology is the toroidal cavity of a side opening, is arranged around scanning channel,
The open side of cavity ontology 32 covers the air outlet of whole air intake passages 20, and installs backboard 60 and cooperatively form a semiclosed sky
Between;31 one end of wind output channel is connected to cavity ontology 32, the other end with outside is connected to setting, the outer low temperature gas by heat exchange
It after body enters to wind chamber component 30 via air intake passage 20, can directly be expelled to outside PET device, realize via wind output channel 31
The heat dissipation of detector 50;Connecting plate 33 is set to the outer edge of cavity ontology 32, and peace is fixed in the suspension of cavity ontology 32
It fills on backboard 60.
Cavity ontology 32 can be integral structure, can also be set as split type structure according to demand.In order to be more advantageous to through
The discharge of heat exchange cryogenic gas is crossed, while can be by cavity sheet as a preferred embodiment convenient for the processing and installation of air-cooled component
Body 32 is set as split type structure comprising at least two chambers 34, each splicing of chamber 34 composition cavity ontology 32, adjacent chamber
It is not connected to each other between room, and each chamber is connected to setting at least one set of air draft component 40.
In illustrated embodiment, cavity ontology 32 includes that even two groups of semi-circular chambers 34, the side opening of each chamber 34 are distinguished
It being connected to the air outlet of half air intake passage 20, two groups of air exhaust passages are arranged in corresponding two groups of semi-circular chambers 34, wind chamber component 30,
Each chamber 34 is connected to wherein one group of air exhaust passage, and outer low temperature air enters a wherein chamber 34 by each air intake passage 20
Afterwards, it is being expelled to outside via corresponding air exhaust passage, certainly, it is also feasible that two groups of chambers 34, which share one group of air exhaust passage,.
Air draft component 40 is for driving the gas in wind chamber component 30 Jing Guo heat exchange to be expelled to outside PET device, this reality
It applies in example, air draft component 40 is exhaust fan, in addition, air draft component 40 can also be exhaust fan etc..Meanwhile to make full use of installation
Space, while ventilation efficiency is improved as far as possible, in the present embodiment, air draft component 40 is fixed on inside wind output channel 31.
As a preferred embodiment, the setting corresponding to wind output channel 31 of the quantity of air draft component 40.
This reality can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
With novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and saying herein
Bright General Principle is applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to
Embodiment is stated, those skilled in the art's announcement according to the present utility model does not depart from the improvement that the utility model scope is made
It should be all within the protection scope of the utility model with modification.
Claims (12)
1. a kind of air cooling equipment of PET device, the PET device include shell, the multiple detectors being set in the shell
And installation backboard, the multiple detector are fixed on the installation backboard, and are set around the scanning channel of the PET device
Set to form detector rings, it is characterised in that: the air cooling equipment include the air intake assembly being set in the detector rings, in
At least air intake passage that is formed in the detector, the wind chamber component being fixed on the installation backboard and with the wind
The air draft component of chamber component connection;
The air intake assembly is respectively communicated with outer low temperature gas, each air intake passage, and is driven described in the cryogenic gas entrance
In air intake passage;
All the air intake passage is connected to setting with the wind chamber component, and the cryogenic gas passes through institute via the air intake passage
After stating detector progress heat exchange, enter in the wind chamber component;
The wind chamber component be located at the detector rings mounting surface backwards to side, the whole air intake passages of covering, and with institute
It states installation backboard and cooperatively forms semi-open environment;
The air draft component is connected to the wind chamber component and outside respectively, to drive in the wind chamber component by heat exchange
Gas be expelled to outside PET device.
2. air cooling equipment according to claim 1, it is characterised in that: the air intake assembly is fan component comprising multiple
Fan and mounting rack for fixing the fan, the mounting rack are fixed on the probe body, the fan warp
It is fixedly linked by the mounting rack and the detector rings, and multiple fan coverings all air intake passage settings.
3. air cooling equipment according to claim 2, it is characterised in that: the air intake assembly includes multiple mounting racks, described
Mounting rack is sector structure, and each mounting rack is individually fixed on several adjacent detector shells, and is set around the PET
Standby scanning channel is also arranged in a ring, and each mounting rack is equipped with multiple installation stations for installing the fan.
4. air cooling equipment according to claim 2 or 3, it is characterised in that: upper layer and lower layer are arranged in parallel in the air intake assembly
Fan.
5. air cooling equipment according to claim 2, it is characterised in that: the air intake assembly further includes monitoring modular, described
Monitoring modular and all the fan communication connection, to judge whether the fan is located according to the status feedback signal of the fan
In normal operating conditions.
6. air cooling equipment according to claim 1, it is characterised in that: the air intake passage includes an air inlet and an outlet air
Mouthful and a notch, the air inlet and air outlet formed in aperture on the opposite side body of the detector, the notch is in right
Position is answered to be formed on the installation backboard, to provide channel into air-inlet chamber component via detector for the cryogenic gas.
7. air cooling equipment according to claim 6, it is characterised in that: the air intake passage further includes a cooling airway, institute
Cooling airway is stated between the air inlet and the air outlet, the heat dissipation on circuit board by being set to the detector
Piece is formed.
8. air cooling equipment according to claim 1, it is characterised in that: the wind chamber component is toroidal cavity structure, including
Cavity ontology, air exhaust passage and at least connecting plate being arranged on cavity ontology;
The cavity ontology is the toroidal cavity of a side opening, is arranged around scanning channel, the open side of the cavity ontology
The whole air intake passages of covering, and the cavity ontology and the installation backboard, that the air exhaust passage cooperatively forms one is half-open
Put environment;
Described wind output channel one end is connected to the cavity ontology, the other end of the air exhaust passage and the air draft component and
Outside connection setting provides channel to flow out the air cooling equipment for gas;
The connecting plate is set to the outer edge of the cavity ontology, carries on the back for the cavity ontology to be fixed on the installation
On plate.
9. air cooling equipment according to claim 8, it is characterised in that: fixed air draft component inside the wind output channel, with
The gas in the wind chamber component Jing Guo heat exchange is driven to be expelled to outside.
10. air cooling equipment according to claim 9, it is characterised in that: the quantity of the air draft component and the air draft wind
Road is accordingly arranged.
11. air cooling equipment according to claim 8, it is characterised in that: the cavity ontology includes at least two chambers, institute
State chamber splicing and form the cavity ontology, be not connected to each other between adjacent chamber, and each chamber with an air draft
Component connection setting;
Or the cavity ontology is integral structure.
12. air cooling equipment according to claim 1, it is characterised in that: the air draft component is exhaust fan.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201820519706.2U CN209186737U (en) | 2018-04-13 | 2018-04-13 | A kind of air cooling equipment of PET device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201820519706.2U CN209186737U (en) | 2018-04-13 | 2018-04-13 | A kind of air cooling equipment of PET device |
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CN209186737U true CN209186737U (en) | 2019-08-02 |
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CN201820519706.2U Withdrawn - After Issue CN209186737U (en) | 2018-04-13 | 2018-04-13 | A kind of air cooling equipment of PET device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108392218A (en) * | 2018-04-13 | 2018-08-14 | 湖北锐世数字医学影像科技有限公司 | A kind of air cooling equipment of PET device |
CN113038758A (en) * | 2021-03-17 | 2021-06-25 | 明峰医疗系统股份有限公司 | Air cooling heat dissipation device and air cooling system applying same |
CN115323564A (en) * | 2022-07-26 | 2022-11-11 | 桐昆集团浙江恒盛化纤有限公司 | Processing technology and processing equipment for soft and soft velvet yarn |
-
2018
- 2018-04-13 CN CN201820519706.2U patent/CN209186737U/en not_active Withdrawn - After Issue
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108392218A (en) * | 2018-04-13 | 2018-08-14 | 湖北锐世数字医学影像科技有限公司 | A kind of air cooling equipment of PET device |
CN108392218B (en) * | 2018-04-13 | 2024-03-29 | 湖北锐世数字医学影像科技有限公司 | Air cooling device of PET equipment |
CN113038758A (en) * | 2021-03-17 | 2021-06-25 | 明峰医疗系统股份有限公司 | Air cooling heat dissipation device and air cooling system applying same |
CN115323564A (en) * | 2022-07-26 | 2022-11-11 | 桐昆集团浙江恒盛化纤有限公司 | Processing technology and processing equipment for soft and soft velvet yarn |
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