CN220918630U - Oil-gas separation device - Google Patents
Oil-gas separation device Download PDFInfo
- Publication number
- CN220918630U CN220918630U CN202322411550.XU CN202322411550U CN220918630U CN 220918630 U CN220918630 U CN 220918630U CN 202322411550 U CN202322411550 U CN 202322411550U CN 220918630 U CN220918630 U CN 220918630U
- Authority
- CN
- China
- Prior art keywords
- oil
- mesh
- tank body
- air outlet
- activated carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000007789 gas Substances 0.000 claims abstract description 58
- 239000003365 glass fiber Substances 0.000 claims abstract description 34
- 239000001307 helium Substances 0.000 claims abstract description 22
- 229910052734 helium Inorganic materials 0.000 claims abstract description 22
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 210000002268 wool Anatomy 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 11
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 27
- 239000003595 mist Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 12
- 239000012535 impurity Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 10
- 230000002035 prolonged effect Effects 0.000 description 4
- 241001233242 Lontra Species 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present disclosure provides an oil-gas separation device, comprising: the tank body is internally provided with a first net piece and a second net piece at intervals; an air inlet part is arranged between the first net piece and the bottom of the tank body, and an air inlet is arranged on the air inlet part; an air outlet part is arranged between the second net piece and the top of the tank body, and an air outlet is arranged on the air outlet part; the filter comprises a first mesh and a second mesh, wherein a filter part is arranged between the first mesh and the second mesh, glass fibers are filled at the lower end of the filter part, activated carbon is filled at the upper end of the filter part, and wool felt is arranged on one side, located at the filter part, of the first mesh and the second mesh. The separation device has good adsorption effect on impurities such as oil mist and water vapor in helium, and the glass fiber at the front end separates the oil mist, so that the service life of the adsorption of the active carbon at the rear end is longer, the glass fiber can be reused, and the use cost is reduced.
Description
Technical Field
The present disclosure relates to the field of gas purification devices, and more particularly to an oil-gas separation device.
Background
The high-purity helium is compressed in the compressor to generate high-pressure helium, at the moment, the high-purity helium is mixed with oil mist, the oil mist needs to be separated, in general, the high-purity helium released after being pressurized by the compressor needs to be cooled through a heat exchanger, most of the oil mist needs to be filtered through an oil mist separator, a small amount of oil mist, water gas and other impurities still exist in the filtered helium, and the helium needs to enter an absorber for further purification.
In the prior art, the oil-gas separation device is filled with activated carbon, oil mist adsorbed by the activated carbon is gradually deposited to the bottom of the adsorber, the adsorption capacity of the activated carbon is gradually reduced along with the accumulation of time, and the adsorption effect is weakened, so that the oil-gas separation device needs to be regenerated and replaced (the common service life is 25000 hours), and the service life is shorter.
However, when only activated carbon is used for adsorption, once oil enters the activated carbon, the adsorption efficiency of the activated carbon on impurities in oil mist is greatly reduced, and the activated carbon at one end of the mixed gas is always filled with greasy dirt, and the activated carbon at the other end is in a state with higher adsorption efficiency; not only the service life is shorter, but also the whole replacement is easy to cause the waste of materials, resulting in higher use cost.
Disclosure of utility model
The utility model provides an among the prior art, oil-gas separation device's life is generally shorter problem provides an oil-gas separation device, and its adsorption efficiency is good, and life is longer relatively, and use cost is lower.
The technical scheme adopted for solving the technical problems is as follows:
An oil-gas separation device comprises a tank body, wherein a first net sheet and a second net sheet are arranged in the tank body at intervals;
an air inlet part is arranged between the first net piece and the bottom of the inner cavity of the tank body, and an air inlet is arranged at the lower part of the tank body and is communicated with the air inlet part;
An air outlet is arranged between the second net piece and the top of the inner cavity of the tank body, and an air outlet is arranged at the upper part of the tank body and is communicated with the air outlet;
The filter unit comprises a first mesh and a second mesh, wherein a glass fiber is filled at one end of the filter unit close to the first mesh, activated carbon is filled at one end of the filter unit close to the second mesh, and wool felts are arranged between the first mesh and the glass fiber and between the second mesh and the activated carbon.
In some embodiments, the axis of the air inlet and the axis of the air outlet are perpendicular to the projection on the horizontal plane, so that when the air passes through, the air can be buffered at the air outlet and then discharged from the air outlet.
In some embodiments, the number of holes of the first mesh is smaller than the number of holes of the second mesh, so that the hole diameter of the first mesh is larger than the hole diameter of the second mesh, and the gas can enter more smoothly.
In some embodiments, 1/3 to 2/3 of the length of the filter section is activated carbon; thus, the comprehensive cost is relatively low while the adsorption effect is ensured.
In some embodiments, an elastic member is disposed between the first mesh and the bottom of the inner cavity of the tank, and the length of the elastic member in the free state is greater than the length of the air inlet along the axial direction of the tank; the elastic piece is in a compressed state after assembly, so that the glass fiber and the activated carbon are always in a compressed state, and further the glass fiber and the activated carbon are kept in a certain density state, when the device is used, the phenomenon that the density of the glass fiber is uneven under the action of air pressure after ventilation is reduced, and the separation effect of oil and gas is affected is caused, so that the density stability of the glass fiber and the activated carbon which are always in the compressed state is relatively good, and the separation effect of the oil and gas is relatively good.
In some embodiments, the second net piece is provided with the otter board on the one side that is located the portion of giving vent to anger, the aperture of otter board is greater than the aperture of second net piece, the second net piece is used for making the active carbon spacing, the otter board makes the tolerance of second net piece bigger, and the structure is more stable.
In some embodiments, the mesh plate has an aperture distance of 5mm and an open cell content of 25% -45%.
In some embodiments, an opening ring is arranged on one side of the mesh plate, which is located at the air outlet part, and the opening direction of the opening ring corresponds to the air outlet, and the opening ring can enable the structure of the mesh plate to be more stable.
In some embodiments, the activated carbon is a coconut shell columnar activated carbon, the CTC value is 60% -90%, the CTC value is an adsorption capacity value of the activated carbon, and the higher the CTC value is, the stronger the adsorption capacity of the activated carbon is.
In some embodiments, the wool felt has a density of 2-6g/cm 3, which is effective to prevent the activated carbon or glass fibers from being carried out of the adsorber when gas is passed through.
In some embodiments, the glass fibers have a density of 350-400kg/m 3.
In some embodiments, after the oil-gas separation device is assembled, helium gas with purity higher than 99% is filled into the tank body so as to ensure positive pressure inside the oil-gas separation device.
Compared with the prior art, the oil-gas separation device provided by the disclosure has the advantages that the adsorption material is composed of the activated carbon and the glass fiber to adsorb impurities such as oil mist in high-pressure helium, and the glass fiber is positioned at the air inlet end, so that most of the oil mist is filtered by the glass fiber, and the activated carbon at the rear end can adsorb other impurities and harmful gases in the air, so that the influence of oil stains on the activated carbon can be effectively reduced by the glass fiber, the service life and the adsorption effect of the activated carbon are further ensured, and the wool felts are arranged on the two sides of the adsorption material, so that the adsorption material is well prevented from being brought out of the adsorber by the high-pressure helium, the adsorption effect is further improved, and the service life of the adsorber is further prolonged; and because the activated carbon is not fully filled, the activated carbon is only required to be replaced when the glass fiber is replaced, and the glass fiber can be reused for a plurality of times, so that the use cost of equipment is reduced.
Drawings
The present disclosure will be described in further detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the present disclosure. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.
Fig. 1: the external structure schematic diagram of the oil-gas separation device is provided by the disclosure;
Fig. 2: the internal structure of the oil-gas separation device is schematically shown in the first drawing;
Fig. 3: the second internal structure schematic diagram of the oil-gas separation device is provided by the disclosure;
Fig. 4: the present disclosure provides a top view of an oil-gas separation device;
fig. 5: an enlarged view of an air outlet structure of an oil-gas separation device is provided by the disclosure;
fig. 6: the structure of the air inlet part of the oil-gas separation device is enlarged;
Wherein, 1, the tank body; 1a, an air inlet part; 1b, an air outlet part; 1c, a filtering part; 11. a first mesh; 111. an elastic member; 12. a second mesh; 13. a screen plate; 131. an opening ring; 2. an air inlet; 3. an air outlet; 41. glass fibers; 42. activated carbon; 43. wool felt.
Detailed Description
The present disclosure is described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present disclosure will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present disclosure.
It will be appreciated by those skilled in the art that in the present utility model, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore the above terms should not be construed as limiting the utility model.
An oil-gas separation device as shown in fig. 1 to 6 is described in detail as follows:
The oil-gas separation device comprises a tank body 1, a first net piece 11 and a second net piece 12 are sequentially arranged in an inner cavity of the tank body 1 from bottom to top, a baffle is arranged on the inner wall of the tank body 1 below the first net piece 11, the baffle at the position only limits the first net piece 11 downwards, the first net piece 11 can move upwards under the condition of being stressed, a baffle is also arranged on the inner wall of the tank body 1 above the second net piece 12, the baffle at the position only limits the second net piece 12 upwards, and the second net piece 12 can move downwards under the condition of being stressed; the gap between the first net piece 11 and the bottom of the inner cavity of the tank body 1 is an air inlet part 1a, the lower part of the tank body 1 is provided with an air inlet 2, and the air inlet 2 is communicated with the air inlet part 1 a; the gap between the second net piece 12 and the top of the tank body 1 is an air outlet part 1b, the upper part of the tank body 1 is provided with an air outlet 3, and the air outlet 3 is communicated with the air outlet part 1 b; the filtering part 1c is arranged between the first mesh 11 and the second mesh 12, the lower end of the filtering part 1c is filled with glass fiber 41, the upper end of the filtering part 1c is filled with activated carbon 42, the thickness of the glass fiber 41 along the axial direction of the tank body 1 is equal to the thickness of the activated carbon 42 along the axial direction of the tank body 1 (according to the actual use condition of the device, the thickness/length of the activated carbon 42 can be 1/3 or 2/3 of the length of the filtering part 1c, etc.), helium released from the former oil mist separator enters the oil gas separating device of the application from the air inlet 2, then the glass fiber 41 and the activated carbon 42 are sequentially used for adsorbing and filtering oil mist, water vapor and other impurities in the gas, the helium after filtration and adsorption flows out from the air outlet 3 into the latter equipment, it can be understood that the oil gas separating device of the application is used for further purifying a small amount of impurities and oil remained in the helium gas after filtration of the oil mist separator, therefore, the oil-gas separation device adopts a vertical structure, helium enters from the bottom of the tank body 1, adsorbed oil is precipitated to the bottom of the tank body 1, and filtered gas flows out from the top of the tank body 1, so that the flowing gas is effectively prevented from being polluted by secondary pollution, but when high-pressure gas passes through, glass fibers 41 and active carbon 42 can be possibly brought out of the adsorber to cause unnecessary loss, therefore, the wool felts 43 are arranged on one sides of the first net sheet 11 and the second net sheet 12, which are positioned at the filtering part 1c, the wool felts 43 at the lower end can prevent the glass fibers 41 from leaking out of the first net sheet 11, the wool felts 43 at the upper end can effectively prevent the gas from bringing the adsorption material out of the gas outlet 3, thus avoiding unnecessary loss, furthermore, the service life of the absorber is prolonged, the running stability of the subsequent equipment can be ensured, in addition, the wool felt 43 is only arranged at two ends of the adsorption material, the probability of blocking caused by the adsorption of the oil mist by the wool felt 43 can be reduced, and the service life of the absorber is further prolonged.
Further, in order to make the effect of absorbing oil mist better, in this embodiment, the activated carbon 42 is a coconut shell column-shaped activated carbon 42, and after being pickled and baked at a high temperature before being filled, the CTC value is 60% -90%, the adsorption capability of impurities such as oil mist and moisture in helium is very superior, and in order to further improve the adsorption effect, the density of the glass fiber 41 is 100-200Kg/M 3 by compression, so that the oil in helium can be well absorbed, in addition, in order to ensure the effect of the wool felt 43, in this embodiment, the high-purity wool felt 43 is adopted, and the density of the wool felt 43 is 2-6g/cm 3, preferably the density value is 3g/cm 3, so that the glass fiber 41 and the activated carbon 42 can be effectively prevented from being carried out by high-pressure gas, and unnecessary loss and pollution are avoided.
Furthermore, the axis of the air inlet 2 and the axis of the air outlet 3 are perpendicular to each other in projection on a horizontal plane, so that when the air passes through, a certain buffer space can be reserved in the air outlet part 1b, and then the air is discharged from the air outlet 3, so that the efficiency of air filtration is improved.
Further, the number of holes of the first mesh 11 is smaller than the number of holes of the second mesh 12, so that the hole diameter of the first mesh 11 is larger than the hole diameter of the second mesh 12, so that the air circulation can be smoother, and as a preferred embodiment, the first mesh 11 is 80 mesh, the second mesh 12 is 150 mesh, and is made of SUS304 material, the first mesh 11 and the second mesh 12 can be used for limiting the glass fiber 41 and the activated carbon 42, in addition, in order to make the structural stability of the glass fiber 41 and the activated carbon 42, an elastic piece 111 (in this example, a cylindrical spring, a disc spring or a corrugated spring or the like) is arranged between the first mesh 11 and the bottom of the inner cavity of the tank 1, and the length of the elastic piece 111 in a free state is larger than that of the air inlet portion 1a, so that after assembly, the glass fiber 41 and the activated carbon 42 are always in a pressed state, the glass fiber 41 and the activated carbon 42 are guaranteed to be in a certain compacted state, and the stability and uniformity of the glass fiber 41 and the activated carbon 42 can be well prevented from being in a state, and the air pressure of the glass fiber 41 and the activated carbon 42 can not be easily affected when the activated carbon is in a stable state, and the activated carbon is easily vibrated and is easily pressed.
Furthermore, because the gas flows from bottom to top, the force required to be borne by the second mesh 12 is greater, in order to make the structure and the bearing force stronger, the mesh plate 13 is arranged on one side of the second mesh 12, which is located at the air outlet portion 1b, and the holes of the mesh plate 13 are larger than those of the second mesh 12, specifically, in this embodiment, the hole distance of the mesh plate 13 is 5mm, and the aperture ratio is 25% -45%, so as to avoid the mesh plate 13 from influencing the normal outflow of the gas, in order to further strengthen the structure thereof, an opening ring 131 is arranged on one side of the mesh plate 13, which is located at the air outlet portion 1b, and the opening direction of the opening ring 131 corresponds to the air outlet 3, so as to avoid the influence of the opening ring 131 on the normal outflow of helium, and likewise, the opening design of the opening ring 131 can better match the diameter of the tank 1, so that the tank body is more convenient in installation.
Further, after the assembly of the oil-gas separation device is completed, the heating and degassing treatment is required, the air (including carbon dioxide, water vapor, oxygen and the like) in the tank is exhausted, so that the interior is free of impurity gas as much as possible, 1.45+/-0.5 MPa helium with purity higher than 99% is filled into the oil-gas separation device after the full degassing, and preferably, the purity of the filled helium is 99.999%, so that the positive pressure in the oil-gas separation device is ensured, and the oil-gas separation device is convenient to directly install and use.
Compared with the prior art, the oil-gas separation device provided by the disclosure has the advantages that the adsorption material adopts the activated carbon and the glass fiber to adsorb impurities such as oil mist in the high-pressure helium, the adsorption effect is good, and the wool felts are arranged on the two sides of the adsorption material, so that the adsorption material is well prevented from being carried out of the adsorber by the high-pressure helium, the adsorption effect is further improved, and the service life of the adsorber is further prolonged.
The foregoing disclosure has been presented in a detail description, with specific examples being used herein to illustrate the principles and embodiments of the disclosure, the above examples being provided solely to assist in the understanding of the disclosure and core ideas. It should be noted that it would be apparent to those skilled in the art that various improvements and modifications could be made to the present disclosure without departing from the principles of the present disclosure, and such improvements and modifications would be within the scope of the claims of the present disclosure.
Claims (10)
1. An oil-gas separation device, characterized in that: the novel water tank comprises a tank body (1), wherein a first net piece (11) and a second net piece (12) are arranged in the tank body (1) at intervals;
An air inlet part (1 a) is arranged between the first net piece (11) and the bottom of the inner cavity of the tank body (1), an air inlet (2) is arranged at the lower part of the tank body (1), and the air inlet (2) is communicated with the air inlet part (1 a);
An air outlet part (1 b) is arranged between the second net piece (12) and the top of the inner cavity of the tank body (1), an air outlet (3) is arranged at the upper part of the tank body (1), and the air outlet (3) is communicated with the air outlet part (1 b);
The filter comprises a first mesh (11) and a second mesh (12), wherein a filter part (1 c) is arranged between the first mesh (11) and the second mesh (12), glass fibers (41) are filled at one end, close to the first mesh (11), of the filter part (1 c), activated carbon (42) is filled at one end, close to the second mesh (12), of the filter part (1 c), and wool felts (43) are arranged between the first mesh (11) and the glass fibers (41) and between the second mesh (12) and the activated carbon (42).
2. An oil and gas separator according to claim 1, wherein: the projection of the air inlet (2) and the axis of the air outlet (3) on the horizontal plane is vertical.
3. An oil and gas separator according to claim 1, wherein: the number of holes of the first net sheet (11) is smaller than that of the second net sheet (12).
4. An oil and gas separator according to claim 1, wherein: the length of 1/3-2/3 of the filtering part (1 c) is active carbon (42).
5. An oil and gas separator according to claim 1, wherein: an elastic piece (111) is arranged between the first net piece (11) and the bottom of the inner cavity of the tank body (1), and the length of the elastic piece (111) in a free state is larger than the length of the air inlet part (1 a) along the axial direction of the tank body (1).
6. An oil and gas separator according to claim 1, wherein: the second net piece (12) is provided with a net plate (13) at one side of the air outlet part (1 b), and holes of the net plate (13) are larger than those of the second net piece (12).
7. The oil and gas separation device according to claim 6, wherein: an opening ring (131) is arranged on one side of the mesh plate (13) located at the air outlet part (1 b), and the opening direction of the opening ring (131) corresponds to the air outlet (3).
8. An oil and gas separator according to claim 1, wherein: the activated carbon (42) is coconut shell columnar activated carbon (42), and the CTC value of the activated carbon is 60% -90%.
9. An oil and gas separator according to claim 1, wherein: the wool felt (43) has a density of 2-6g/cm 3.
10. An oil and gas separator according to claim 1, wherein: after the oil-gas separation device is assembled, helium with purity higher than 99% is filled in the tank body (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322411550.XU CN220918630U (en) | 2023-09-05 | 2023-09-05 | Oil-gas separation device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322411550.XU CN220918630U (en) | 2023-09-05 | 2023-09-05 | Oil-gas separation device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220918630U true CN220918630U (en) | 2024-05-10 |
Family
ID=90963864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322411550.XU Active CN220918630U (en) | 2023-09-05 | 2023-09-05 | Oil-gas separation device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220918630U (en) |
-
2023
- 2023-09-05 CN CN202322411550.XU patent/CN220918630U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101439250B (en) | Air filter for fuel cell | |
CN101564633A (en) | Flue gas purifying device for fixed-bed | |
CN220918630U (en) | Oil-gas separation device | |
CN105214388A (en) | A kind of filter and there is the clarifier of this filter | |
CN204830225U (en) | Air purifier | |
CN201454348U (en) | Fixed bed gas cleaning device | |
CN215352819U (en) | Chemical production active carbon adsorption device | |
CN212680539U (en) | Activated carbon adsorption device for waste gas treatment | |
CN208871745U (en) | A kind of aqueous-based air clarifier takes blower structure | |
CN210631896U (en) | Tail end box type efficient filter of large oil mist collector | |
CN210097311U (en) | Medical treatment is air purification device for administrative or technical offices convenient to dismouting | |
CN221045756U (en) | Molecular tower and oxygenerator | |
CN209771773U (en) | Drying device of oxygenerator with drying function | |
CN216726539U (en) | N-shaped carbon barrel filter box | |
CN213760593U (en) | Adsorption device for ionic liquid desulphurization production flow | |
CN219023818U (en) | Vertical adsorption bed | |
CN214597793U (en) | Energy-saving medical oxygen generator | |
CN218741147U (en) | Oxygenerator with pressure adjustment | |
CN211987478U (en) | Modified molecular sieve exhaust treatment device | |
CN220878115U (en) | Leading-in type air purifier filter element | |
CN221287200U (en) | Assembled nanofiber membrane air conditioner filter core | |
CN113550890B (en) | Low-noise air compressor with reactive compensation | |
CN219922403U (en) | Waste gas adsorption device for producing explosion-proof membrane | |
CN221823998U (en) | Hydrogen compressor | |
CN209865537U (en) | Air filter for cryogenic oxygen production technology |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |