CN209604887U - Dynamic air-distributing device and system - Google Patents
Dynamic air-distributing device and system Download PDFInfo
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- CN209604887U CN209604887U CN201821469040.0U CN201821469040U CN209604887U CN 209604887 U CN209604887 U CN 209604887U CN 201821469040 U CN201821469040 U CN 201821469040U CN 209604887 U CN209604887 U CN 209604887U
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Abstract
The utility model relates to distribution Instrument technology fields, disclose a kind of dynamic air-distributing device and system, specifically, dynamic air-distributing device includes cabinet body, air accumulator, electrically-controlled component, pressure sensor, density real-time monitoring device and charge flow rate controller, the air accumulator and electrically-controlled component are arranged in the cabinet body, and the pressure sensor is arranged on the air accumulator.The utility model dynamic air-distributing device and system can have sufficiently large flow gas to export while guaranteeing precision interior in short-term；The gas allotted can be all of no exhaust gas discharge economizes on resources；Distribution process is Closed loop operation mode, can correct its running parameter in real time, guarantees that configuration precision is higher.
Description
Technical field
The utility model relates to distribution Instrument technology fields, more particularly, to a kind of dynamic air-distributing device and system.
Background technique
Current dynamic gas distribution instrument technology maturation, product is more, is only suitable for since gas output is limited in the unit time in laboratory
Interior analysis test application.
Existing dynamic gas distribution instrument is single machine work, usually by human-machine operation panel or display screen, 2 or multiple quality
The connecting lines such as flow controller, electrically-controlled component, glass rotameter, gas input/output interface composition；It is mainly logical
Man-machine operation panel setting configuration concentration ratio data is crossed, the gas of control mass flow controller output corresponding proportion is with certain
Flow velocity is mutually mixed in pipeline, and eventually by a glass rotameter output for testing, debugging use, extra gas is logical
Cross the discharge of another glass rotameter.
Existing dynamic gas distribution instrument generally can only be that distribution uses at any time at any time, and gas output is limited in short-term, this quasi-instrument outlet
For amount usually within 2L/min, certainly internal critical component replacement can accomplish greater flow, but will cause precision decline
(range is bigger, and subdivision is bigger) is unable to satisfy experimental test requirement；To which existing dynamic gas distribution instrument is unable to satisfy big gas output and essence
Spend high application (such as automatic production line).Meanwhile there is also gas wastes in existing dynamic gas distribution instrument distribution application
Problem, in order to reach instrument optimum Working when due to instrument work, the throughput out of distributing instrument can be arranged automatically by software,
But this flow is not necessarily the flow that our experimental tests need, it will usually beyond the flow that we use, so a part of
Gas is exhausted as exhaust gas by another glass rotameter by pipeline.Further, existing dynamic gas distribution instrument is all opened
Ring working method, configure the gas concentration come may and the ideal value of setting have deviation, the essence of distribution can not be completely secured
Accuracy.
Utility model content
The purpose of this utility model is to provide a kind of dynamic air-distributing devices, are matched with solving dynamic existing in the prior art
Gas instrument is unable to satisfy that big gas output and application with high accuracy, there are the technologies of gas waste and distribution precision difference to ask
Topic.
The purpose of this utility model, which also resides in, provides a kind of dynamic gas mixer, to solve dynamic existing in the prior art
Distributing instrument is unable to satisfy that big gas output and application with high accuracy, there are the technologies of gas waste and distribution precision difference to ask
Topic.
Based on above-mentioned first purpose, the utility model provides a kind of dynamic air-distributing device, including cabinet body, air accumulator, automatically controlled
Component, pressure sensor, density real-time monitoring device and at least two charge flow rate controllers, the air accumulator and electrically-controlled component
It is arranged in the cabinet body, the pressure sensor is arranged on the air accumulator；
The air accumulator is provided with tank body gas outlet and tank body air inlet, and the tank body air inlet is connected at least two air inlets
It manages, the charge flow rate controller is provided in the air inlet pipe, and the air inlet pipe and the charge flow rate controller are one by one
It is correspondingly arranged, the density real-time monitoring device is provided on the tank body air inlet, the tank body gas outlet is connected with escape pipe；
The electrically-controlled component and the pressure sensor, the charge flow rate controller and the density real-time monitoring device
It is separately connected.
Further, air gauge is additionally provided on the air accumulator, the air gauge is for detecting in the air accumulator
Pressure simultaneously carries out pressure value and shows.
Further, operation panel is additionally provided on the cabinet body, the operation panel is connect with the electrically-controlled component.
Further, the tank body air inlet is connected with mixture pipe, and the mixture pipe connects at least two air inlet pipe
Logical, the density real-time monitoring device is arranged on the mixture pipe and all air inlet pipe is arranged in close to the one of tank body air inlet
Side.
Further, the density real-time monitoring device includes concentration display component and Concentration Testing component, and the concentration is aobvious
Show component for showing the gas concentration that the Concentration Testing component detection arrives.
Further, the top of the cabinet body is arranged in the electrically-controlled component, and the lower part of the cabinet body is provided with storage tank storehouse,
The air accumulator is arranged in the storage tank storehouse of the cabinet body, and the cabinet body corresponds to the air accumulator and is provided with guard rail rod.
Further, the bottom of the air accumulator is provided with support leg, and the outer wall of the air accumulator is interior with the cabinet body
Fixed link is provided between wall.
Further, the cabinet body includes shell and the bracket that is arranged in the shell, the electrically-controlled component setting
On the bracket, the air accumulator is arranged in the reserved storage tank storehouse of the bracket.
Further, the density real-time monitoring device is connected to the mixture pipe by detecting branch pipe.
Based on above-mentioned second purpose, the utility model additionally provides a kind of dynamic gas mixer, including any of the above-described institute
The dynamic air-distributing device stated.
Compared with prior art, the utility model has the following beneficial effects:
Dynamic air-distributing device provided by the utility model, including cabinet body, air accumulator, electrically-controlled component, pressure sensor, concentration
Real-time monitor and at least two charge flow rate controllers, the air accumulator and electrically-controlled component are arranged in the cabinet body, institute
Pressure sensor is stated to be arranged on the air accumulator；The air accumulator is provided with tank body gas outlet and tank body air inlet, the tank
Body air inlet is connected at least two air inlet pipe, and the charge flow rate controller, and the air inlet pipe are provided in the air inlet pipe
It is arranged in a one-to-one correspondence with the charge flow rate controller, the density real-time monitoring device, institute is provided on the tank body air inlet
It states tank body gas outlet and is connected with escape pipe；The electrically-controlled component and the pressure sensor, the charge flow rate controller and
The density real-time monitoring device is separately connected.The utility model dynamic air-distributing device can be mixed configuration by setting air accumulator
The gas of completion is all filled in air accumulator, and any waste is not present；The utility model dynamic air-distributing device is additionally provided with simultaneously
Inlet gas concentration real-time monitor realizes that closed loop detection controls with electrically-controlled component, so as to adjust charge flow rate control in real time
The configuration work parameter of device guarantees that the gas of high accurancy and precision persistently exports.The air accumulator of the utility model dynamic air-distributing device according to
The feedback of pressure sensor judges the intracorporal gas storage capacity of tank, the pressure value that electrically-controlled component is detected according to pressure sensor with
The preset highest threshold value of air accumulator is compared, if pressure value has reached highest threshold value, it is believed that air accumulator has reached balance
State, at this point, electrically-controlled component control single unit system is advanced into standby mode, air inlet no longer air inlet certainly；When electrically-controlled component receives
When the pressure value fed back to pressure sensor is lower than lowest threshold, electrically-controlled component control device automatically turns on again, carries out at full speed
Mixed admission work；As long as the utility model dynamic air-distributing device guarantee test or equipment are averaged, gas consumption is no more than its most Dalian
Continuous distribution capacity can realize uninterrupted supply, to meet the supply of production line big flow, so that dynamic air-distributing device is from test
Room is applicable to industrial production line.The utility model dynamic air-distributing device, can be in the gas for carrying out enough big flows in short-term
Output guarantees precision simultaneously；The gas allotted can be all of no exhaust gas discharge economizes on resources；Distribution process is closed loop work
Make mode, its running parameter can be corrected in real time, guarantees that configuration precision is higher.
Dynamic gas mixer provided by the utility model, including dynamic air-distributing device described in any of the above embodiments.This is practical
Novel dynamic gas mixer is compared with prior art, having the same beneficial to effect with dynamic air-distributing device provided by the utility model
Fruit also can intuitively be obtained, herein no longer by the description of the above-mentioned beneficial effect to the utility model dynamic gas mixer
It is described in detail.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the front schematic view of the utility model embodiment dynamic air-distributing device；
Fig. 2 is the interior of the cabinet schematic diagram of the utility model embodiment dynamic air-distributing device.
Icon: 1- cabinet body；11- shell；12- bracket；13- guard rail rod；14- fixed link；15- support leg；2- air accumulator；3-
Electrically-controlled component；4- operation panel；5- air gauge；6- mixture pipe air inlet；The gas outlet of 7- escape pipe；8- density real-time monitoring
Device.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., the orientation or positional relationship of instruction are orientation based on the figure or position
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, such as there is term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Fig. 2 is 1 schematic internal view of cabinet body seen from the rear of cabinet body 1.
Embodiment one
Referring to shown in Fig. 1 to Fig. 2, present embodiments providing a kind of dynamic air-distributing device, including cabinet body 1, air accumulator 2, electricity
Control component 3, pressure sensor, density real-time monitoring device 8 and at least two charge flow rate controllers, wherein the air accumulator 2
It is arranged in the cabinet body 1 with electrically-controlled component 3.
The air accumulator 2 is provided with tank body gas outlet and tank body air inlet, and mixing is connected on the air inlet of the tank body
Tracheae is provided at least two mixture pipe air inlets 6, the mixture pipe air inlet 6 and air inlet pipe on the mixture pipe
Connection, and it is by two kinds or two that the air inlet pipe on different mixture pipe air inlets 6, which connects different gas namely mixture pipe,
Kind or more the position that is mixed of gas；The density real-time monitoring is arranged in the tank body air inlet on mixture pipe
Device, wherein the mixture pipe air inlet 6 should be arranged in close to the side of air accumulator 2, to protect in the density real-time monitoring device
Card density real-time monitoring device is able to detect that the concentration of the intracorporal all gas of gaseous mixture.The tank body gas outlet is connected with outlet
Pipe, is provided with manually-operated gate (not shown) between the gas outlet 7 of the escape pipe and the tank body gas outlet.
The pressure sensor is arranged on the air accumulator 2, for detecting the pressure in the air accumulator 2 and feeding back to
Electrically-controlled component 3.Charge flow rate controller is provided in air inlet pipe, and the air inlet pipe and the charge flow rate controller one are a pair of
It should be arranged, electrically-controlled component 3 is separately connected with pressure sensor, charge flow rate controller and density real-time monitoring device.
Air accumulator 2 is used to store the gas mixed, and capacity carries out reasonability selection according to actual needs.Manually-operated gate
It can control the opening and closing of escape pipe.Charge flow rate controller is control charge flow rate, can pass through the control of electrically-controlled component 3
Change charge flow rate, can be mass flow controller general at present.Density real-time monitoring device enters for real-time monitoring
The gas concentration of air accumulator 2 simultaneously feeds back to electrically-controlled component 3.Pressure sensor is used to detect the pressure in air accumulator 2, and in real time will
Pressure value in air accumulator 2 passes to the electrically-controlled component 3.Electrically-controlled component 3 is the control core of whole device, can be list
Piece machine, built in program software should specific aim develop to realize the control and support to component；Electrically-controlled component 3 can basis
The pressure value control air intake assembly pause or open that pressure sensor is sent, can also be anti-according to inlet gas concentration real-time monitor 8
The gas concentration of feedback adjusts the inlet condition of the charge flow rate controller in real time.
For the present embodiment dynamic air-distributing device by setting air accumulator 2, distribution work can be uninterruptedly with peak efficiency work
Make, the gas that configuration mixing is completed all is filled in air accumulator 2, any waste is not present；The utility model dynamic is matched simultaneously
Device of air is additionally provided with inlet gas concentration real-time monitor 8 and electrically-controlled component 3 and charge flow rate controller realizes closed loop detection, from
And the configuration work parameter that can adjust charge flow rate controller in real time guarantees that the gas of high accurancy and precision persistently exports.
The air accumulator of the present embodiment dynamic air-distributing device judges that the intracorporal gas of tank stores according to the feedback of pressure sensor
Amount, the pressure value and preset highest threshold value (the generally 0.25- of air accumulator that electrically-controlled component is detected according to pressure sensor
It 0.3MPa) is compared, if pressure value has reached highest threshold value, it is believed that air accumulator has reached equilibrium state, at this point, automatically controlled
Component control single unit system is advanced into standby mode certainly, air inlet no longer air inlet at this time；When electrically-controlled component receives pressure sensing
When the pressure value of device feedback is lower than lowest threshold, electrically-controlled component control device automatically turns on again, carries out mixed admission work at full speed
Make；As long as the present embodiment dynamic air-distributing device guarantee test or equipment are averaged, gas consumption can no more than its maximum continuous distribution capacity
To realize uninterrupted supply, to meet the supply of production line big flow, so that dynamic air-distributing device is applicable to from laboratory
Industrial production line.The utility model dynamic air-distributing device in the gas output for carrying out enough big flows in short-term while can guarantee
Precision；The gas allotted can be all of no exhaust gas discharge economizes on resources；Distribution process is Closed loop operation mode, can be in real time
Its running parameter is corrected, guarantees that configuration precision is higher.
Usual air distributing device is all to mix two or more gas, so the number of corresponding gaseous species
Amount, the mixture pipe air inlet 6, the air inlet pipe, the charge flow rate controller include at least two respectively, and described mixed
Tracheae air inlet 6, air inlet pipe and the charge flow rate controller is closed to be arranged in a one-to-one correspondence.Wherein, mixture pipe air inlet 6, into
The quantity of tracheae and charge flow rate controller is consistent with gaseous species.
For the form of multiple gases type, all gas is conveyed again after being imported into same mixture pipe into the gas storage
Tank 2, a density real-time monitoring device is arranged on mixture pipe, and density real-time monitoring device can analyze each component in mixture pipe
The concentration of gas is simultaneously sent to electrically-controlled component 3 in real time, and electrically-controlled component 3 is adjusted in real time according to the feedback information of density real-time monitoring device
Charge flow rate controller in whole corresponding air inlet pipe carries out the adjusting of corresponding gas flow to reach to change and enter gas in air accumulator 2
The purpose of bulk concentration.
In order to realize that density real-time monitoring device 8 is able to detect that each group of the mixed gas in mixture pipe after the completion of mixing
Point concentration, can in mixture pipe on one end of tank body air inlet connecting detection branch pipe, so as to which concentration is supervised in real time
It surveys device 8 to connect with detection branch pipe, due to detecting branch pipe and mixed gas close to one end of tank body air inlet, so detecting branch pipe
Other are consistent with the mixed gas for mixing completion in mixed gas, so that density real-time monitoring device 8 passes through measurement detection branch
Gas componant in pipe.
As shown in Figure 1, being additionally provided with operation panel 4, the operation on 1 outer wall of cabinet body of the present embodiment dynamic air-distributing device
Panel 4 connects with the electrically-controlled component 3 and for inputting corresponding control parameter.Meanwhile operation panel 4 is preferably LCD touch
Display screen, such operation panel 4 not only can be used as input equipment but also can be used as display equipment and shown to setting parameter.Behaviour
The specific fixed form for making panel 4, which can be, to be embedded on 1 outer wall of cabinet body, can also be fixed using any conventional means.
Preferably, air gauge 5 is additionally provided on the air accumulator 2 of the present embodiment dynamic air-distributing device, the air gauge 5 is used for
The pressure in the air accumulator 2 and the display by pressure value are detected, the gas understood in air accumulator 2 to facilitate staff to check
Body stores situation.
The present embodiment dynamic air-distributing device, the density real-time monitoring device include concentration display component and Concentration Testing group
Part, the concentration display component is for showing the gas concentration that the Concentration Testing component detection arrives.
As shown in the figures 1 and 2, as a specific set-up mode of the utility model dynamic air-distributing device, cabinet body 1 includes outer
Shell 11 and the bracket 12 being arranged in shell 11, on 12 top of bracket, the air accumulator 2 is arranged for the setting of electrically-controlled component 3
In the storage tank storehouse that 12 lower part of bracket is reserved, and the corresponding air accumulator 2 of the bracket 12 is provided with guard rail rod 13, described
The bottom of air accumulator 2 is provided with support leg 15, is provided with fixation between the outer wall of the air accumulator 2 and the inner wall of the cabinet body 1
Bar 14.
With used distributing instrument using similar, when use needs to access mutually to be mixed the utility model dynamic air-distributing device
Two or more gases, are arranged configuration parameter on operation panel 4, click starting, device can whole-course automation operation, be not necessarily to
Artificial supervision, can work in predetermined operating condition.
Applicating example:
There is a production line to match a kind of gas, it is desirable that instantaneous flow 5L/Min with gas 15S, needs this practical in every 2 minutes
The distribution capacity (L/Min) of novel dynamic air-distributing device are as follows: minimum distribution capacity=15/60*5/2=0.625L/Min.Calculating is learnt
The production line requirement that instantaneous flow requirement 5L/Min can be realized in every point of air distributing device at least reaching 0.625L/Min is same
When be able to satisfy the precision requirement of distribution again；It is 40L according to gas storage tankage size, if being completely filled with about 0.3MPa, so that it may
Meet with 5L/Min continuously about 20 minutes overlength it is without interruption, meet special applications demand.If gas tank is bigger, Ke Yitong
Ratio extends supply time.
In conclusion the utility model dynamic air-distributing device has mass storage device, it can be full of air accumulator 2 in advance,
Meet instantaneous big flow outlet；There is no Waste gas outlet, the mixed gas of all configurations is filled with air accumulator 2, and there is no waves
Take, greatlys save standard gas cost；Using Closed loop operation mode, its work output accuracy and stability more can guarantee.This is practical new
Type dynamic air-distributing device very good solution various drawbacks of traditional scheme, enable the utility model dynamic air-distributing device to walk out
Laboratory, which applies, creates bigger commercial value in industrial site.
It should be noted that by changing gas storage, changing using similar containers storage or buffer gas, change
Distribution mode come realize the caching after gas mixing also belong to the application protect content, as long as namely be pre-mixed storage it is any
Medium realizes that the scheme of subsequent instantaneous super large operating condition output is within the protection scope of the present utility model.
Embodiment two
The present embodiment provides a kind of dynamic gas mixers, including the dynamic air-distributing device as described in embodiment one.
It should be noted that the present embodiment dynamic gas mixer is directed to applying working condition, further include and the dynamic air-distributing
The connection instrument of the standard gas tank that device is connected and auxiliary, standard gas tank are the tank body of clean gas needed for storing, the auxiliary
Connection instrument can be the switch valve etc. being connected in air inlet pipe, switch valve can be connect with electrically-controlled component 3, thus automatically controlled group
Part 3 can be by the opening and closing of control switch valve intelligent control air inlet pipe, so that the air inlet of intelligent control air accumulator 2 acts.
Structure, working principle and the beneficial effect for the dynamic air-distributing device that the present embodiment dynamic gas mixer is related to are in reality
It applies and is described in detail in example one, details are not described herein.
The utility model dynamic gas mixer compared with prior art, has with dynamic air-distributing device provided by the utility model
Identical beneficial effect also can be obtained intuitively by the description of the above-mentioned beneficial effect to the utility model dynamic gas mixer
, in this not go into detail.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of dynamic air-distributing device, which is characterized in that real including cabinet body, air accumulator, electrically-controlled component, pressure sensor, concentration
When monitor and at least two charge flow rate controllers, the air accumulator and electrically-controlled component are arranged in the cabinet body, described
Pressure sensor is arranged on the air accumulator；
The air accumulator is provided with tank body gas outlet and tank body air inlet, and the tank body air inlet is connected at least two air inlet pipe,
The charge flow rate controller is provided in the air inlet pipe, and the air inlet pipe and the charge flow rate controller correspond
It is arranged, is provided with the density real-time monitoring device on the tank body air inlet, the tank body gas outlet is connected with escape pipe；
The electrically-controlled component and the pressure sensor, the charge flow rate controller and the density real-time monitoring device are distinguished
Connection.
2. dynamic air-distributing device according to claim 1, which is characterized in that it is additionally provided with air gauge on the air accumulator,
The air gauge is shown for detecting the pressure in the air accumulator and carrying out pressure value.
3. dynamic air-distributing device according to claim 1, which is characterized in that it is additionally provided with operation panel on the cabinet body,
The operation panel is connect with the electrically-controlled component.
4. dynamic air-distributing device according to claim 1, which is characterized in that the tank body air inlet is connected with gaseous mixture
Pipe, the mixture pipe are connected to at least two air inlet pipe；
The density real-time monitoring device is arranged on the mixture pipe, and all air inlet pipe are arranged in close to tank body air inlet
Side.
5. dynamic air-distributing device according to claim 1, which is characterized in that the density real-time monitoring device includes that concentration is aobvious
Show that component and Concentration Testing component, the gas that the concentration display component is used to show that the Concentration Testing component detection arrives are dense
Degree.
6. dynamic air-distributing device according to claim 1, which is characterized in that the cabinet body is arranged in the electrically-controlled component
Top, the lower part of the cabinet body are provided with storage tank storehouse, and the air accumulator is arranged in the storage tank storehouse of the cabinet body, and the cabinet body
The corresponding air accumulator is provided with guard rail rod.
7. dynamic air-distributing device according to claim 6, which is characterized in that the bottom of the air accumulator is provided with support
Foot is provided with fixed link between the outer wall of the air accumulator and the inner wall of the cabinet body.
8. dynamic air-distributing device according to claim 1, which is characterized in that the cabinet body includes shell and is arranged in institute
The bracket in shell is stated, on the bracket, the reserved storage of the bracket is arranged in the air accumulator for the electrically-controlled component setting
In tank storehouse.
9. dynamic air-distributing device according to claim 4, which is characterized in that the density real-time monitoring device is mixed with described
Tracheae passes through detection branch pipe connection.
10. a kind of dynamic gas mixer, which is characterized in that including the described in any item dynamic air-distributing devices of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821469040.0U CN209604887U (en) | 2018-09-06 | 2018-09-06 | Dynamic air-distributing device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821469040.0U CN209604887U (en) | 2018-09-06 | 2018-09-06 | Dynamic air-distributing device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604887U true CN209604887U (en) | 2019-11-08 |
Family
ID=68393354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821469040.0U Active CN209604887U (en) | 2018-09-06 | 2018-09-06 | Dynamic air-distributing device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604887U (en) |
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2018
- 2018-09-06 CN CN201821469040.0U patent/CN209604887U/en active Active
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