CN111389104A - Integral high-efficient low resistance water retaining device - Google Patents
Integral high-efficient low resistance water retaining device Download PDFInfo
- Publication number
- CN111389104A CN111389104A CN202010333067.2A CN202010333067A CN111389104A CN 111389104 A CN111389104 A CN 111389104A CN 202010333067 A CN202010333067 A CN 202010333067A CN 111389104 A CN111389104 A CN 111389104A
- Authority
- CN
- China
- Prior art keywords
- water
- water retaining
- baffle
- blades
- retaining plate
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 207
- 230000000694 effects Effects 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 18
- 238000001914 filtration Methods 0.000 abstract description 7
- 238000011044 inertial separation Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention discloses an integral high-efficiency low-resistance water retaining device.A water retaining main body comprises modular water retaining plate units arranged in a water retaining plate channel, and each group of water retaining plate units comprises a water retaining plate frame and a plurality of water retaining plate blades; the water baffle blade is a corrugated blade consisting of at least one arc-shaped section and a straight line section; the distance between the adjacent water baffle blades is gradually reduced from the air inlet end to the air outlet end of the channel; the side surface of the straight line section on the water baffle plate blade is provided with a plurality of water blocking grooves, and the side surface of the arc section on one side of the air outlet end is provided with a secondary baffle. And a plurality of water baffle units can be spliced to meet the requirements of channels with different interface widths. The water baffle blades can adopt a plastic plate with double-sided flocking, so that the inertial separation effect and the water carrying capacity of suspended liquid drops in airflow are improved. The invention solves the problems of large resistance and low efficiency of filtering small-particle-size water drops of the water baffle plate with the traditional structure, and improves the use effect of the water baffle plate.
Description
Technical Field
The invention relates to a water baffle for wet dust removal devices such as a foam tower spray tower and the like, in particular to a water baffle which is used for separating water drops suspended in air from air flow after wet dust removal.
Background
The foam tower spray tower and the like filter dusty air flow in a water washing or foam mode, and then partial water drops are carried in the air flow; wet dust removal is a reusable filtering form, the filtering level of the wet dust removal is equivalent to that of a primary filter, the subsequent medium-efficiency and high-efficiency filters are generally medium filters nowadays, and suspended water drops are a very adverse factor for the service life and the performance of the subsequent higher-level filters; meanwhile, in places with requirements on the temperature and humidity of the air supply, water drops can also have great influence on the adjustment of the temperature and humidity. Therefore, the water baffle indirectly influences the performance of the equipment.
The existing water baffles, such as the traditional W-shaped, C-shaped and V-shaped water baffles, have relatively large resistance; although the resistance of the corrugated water baffle is much smaller, the cost is the reduction of the water baffle efficiency; meanwhile, the market uses a plurality of structures such as U-shaped grooves or herringbone convex eaves to improve the overall gas-water separation effect, but the structures cause unnecessary resistance increase due to excessive use, and the resistance of the water baffle has great influence on the energy conservation and energy consumption of the overall system; when the concentration of liquid drops in the airflow is too high, the water carrying capacity of the water baffle is easily exceeded, so that a water film is formed on the surface of a blade of the water baffle, the subsequent separation effect of the liquid drops is influenced, the water film is easily broken when the liquid drops collide, more small liquid drops are stirred, the removal difficulty is increased, and the water baffle efficiency is reduced. Therefore, there is a need for better improving the performance of the water baffle and improving a practical, economical and integrated high-efficiency and low-resistance water baffle
Disclosure of Invention
Aiming at the prior art, the invention provides a novel water baffle which is designed based on a corrugated water baffle, solves the problems of large resistance and low efficiency of small-diameter water drops of the water baffle in the prior art, and improves the practical effect of the water baffle.
In order to solve the technical problem, the integral high-efficiency low-resistance water retaining device comprises a water retaining main body, wherein the water retaining main body comprises modular water retaining plate units arranged in a water retaining plate channel, each group of water retaining plate units comprises a water retaining plate frame, and a plurality of water retaining plate blades are arranged in the water retaining plate frame and in the direction of a fluid; the plurality of water baffle blades are corrugated blades, each water baffle blade consists of at least one arc-shaped section and a plurality of straight line sections, and the arc-shaped sections are connected with the straight line sections at intervals; the distance between two adjacent water baffle blades is gradually reduced from the air inlet end to the air outlet end of the water baffle channel; and a secondary baffle is arranged on the side surface of the arc-shaped section on one side of the air outlet end of the water baffle blade, and a plurality of water blocking grooves are arranged on the side surface of the straight line section of the water baffle blade.
Furthermore, the integral high-efficiency low-resistance water retaining device is characterized in that the secondary baffle is arranged on one side of the bulge of the arc-shaped section, so that the water retaining efficiency and the water carrying capacity are improved, and particularly the separation effect of fine water drops is improved; the secondary baffle is a U-shaped plate or an arc-shaped plate; the water blocking groove is arranged on the upstream surface of the straight line section.
The water baffle blade comprises three straight plate sections, the lengths of the three straight line sections from the air inlet end to the air outlet end are L1, L2 and L3 respectively, the lengths of the three straight line sections of different water baffle blades are L1, L2 and L3, the distances between two adjacent water baffle blades are gradually reduced from the air inlet end to the air outlet end of the water baffle channel, and the separation of water baffles with different particle sizes is realized.
One side of the air inlet end of the water baffle channel is used for separating liquid drops with large particle sizes, and one side of the air outlet end of the water baffle channel is used for separating liquid drops with small particle sizes, so that the influence of the water flying phenomenon after full loading of the blades on the separation effect of the liquid drops with small particle sizes is controlled.
Each set of breakwater units comprises 4 breakwater blades.
The number of sets of the water baffle units arranged in the water baffle channel is determined according to the interface width of the water baffle channel.
The thickness of the water baffle blade is 0.1-0.4 mm.
The water baffle blade comprises a plastic substrate, and the plastic substrate is subjected to double-sided flocking through an electrostatic flocking process.
Compared with the prior art, the invention has the beneficial effects that:
(1) the straight plate sections L of different water baffle blades are different in length, so that the change of the blade spacing in a water baffle channel is realized, the blade spacing of the air inlet end of the integral water baffle is smaller than the blade spacing of the air outlet end, and the integral water baffle is in a continuously-reduced spacing form, so that the larger blade spacing of the air inlet end (namely the front end) can be used for separating liquid drops with large particle size, the part, with the second-stage baffle, of the air outlet end (namely the rear end) and the relatively smaller blade spacing part can be used for separating liquid drops with small particle size, the graded filtration is realized, and the separation effect of the water flying phenomenon after the blades are fully loaded on the liquid drops with small particle size can be controlled.
(2) Because the straight plate section on each water baffle blade in the water baffle device is provided with the plurality of water blocking grooves, and the bulge or the dent of the arc section at one side of the air outlet end of each water baffle blade is provided with the U-shaped or arc-shaped secondary baffle, the water baffle device can realize the separation of water with different particle sizes and simultaneously has lower resistance for separating liquid drops with small particle sizes; in addition, the reduced interface channel (at the rear end) increases the local flow velocity, increases inertial impaction and improves the overall separation efficiency.
(3) The modular water baffle unit can be spliced to meet the requirements of channels with different interface widths.
(4) The water baffle plate blade can be made of traditional materials such as metal and plastic, and can also be made of a plastic flocking plate, namely, the plastic substrate is subjected to double-sided flocking by using an electrostatic flocking process, and the thickness of the blade can be controlled to be 0.1-0.4 mm, so that the inertial separation effect and the water carrying capacity of suspended liquid drops in airflow are improved.
Drawings
FIG. 1 is a schematic structural view of a modular water baffle unit of the integral high-efficiency low-resistance water baffle device of the invention;
FIG. 2 is a schematic view showing the arrangement of grooves on a linear section of a water deflector blade according to the present invention;
FIG. 3 is a schematic view of the structure of the water deflector blade of the present invention.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, which are not intended to limit the invention in any way.
The invention provides an integral high-efficiency low-resistance water retaining device which comprises a water retaining main body, wherein the water retaining main body comprises modular water retaining plate units arranged in a water retaining plate channel, and the number of the water retaining plate units arranged in the water retaining plate channel is determined according to the interface width of the water retaining plate channel.
As shown in figure 1, the water baffle unit is composed of 4 (certainly, other numbers of water baffle blades 2 are not excluded), the water baffle unit can meet the water baffle requirements of air ducts with different cross-sectional areas through combination of multiple groups, each group of water baffle unit comprises a water baffle frame 1, a plurality of water baffle blades 2 are arranged in the water baffle frame 1 and are arranged in the direction of fluid, the plurality of water baffle blades are corrugated blades, the water baffle blades 2 are composed of at least one arc-shaped section and a plurality of straight-line sections, the arc-shaped sections are connected with the straight-line sections at intervals, in the embodiment, each group of water baffle unit comprises 4 water baffle blades 2, the water baffle blades 2 comprise three straight-plate sections and four arc-shaped sections, the lengths of the three straight-line sections from an air inlet end to an air outlet end are respectively L, L and L, the lengths of the three straight-section are respectively from the air inlet end to an air outlet end are respectively 363, the lengths of the three arc-shaped sections are L, L and L are different, so that the change of the blade interval in an air outlet channel is realized, the center angle theta of the four arc-shaped sections is the same as the same or different, the interval between the arc-shaped section of the arc-shaped section blades, the arc-shaped section blades is changed, the interval of the water baffle blade 2, the interval of the water baffle blade is reduced by the inertia of two adjacent water baffle blades, the two baffle blades is improved by the interval from the interval of the interval from the inertia of the baffle blades.
As shown in fig. 2, a plurality of water blocking grooves 4 are arranged on the side surface of each straight line section of the water baffle blade 2, and the water blocking grooves 4 are arranged on the upstream surface of the straight line section.
As shown in fig. 1 and 3, a secondary baffle 3 is arranged on a side surface (i.e. a protrusion or a recess of a partial arc segment) of the arc segment on one side of the air outlet end of the water baffle blade 2, the secondary baffle 3 is preferably arranged on one side of the protrusion of the arc segment, and the secondary baffle is a U-shaped plate or an arc plate; therefore, the water retaining grooves formed between the secondary baffle 3 and the water retaining plate blades 2 are only arranged at the rear end instead of being arranged globally, the water retaining efficiency of the air outlet end (rear end) is further improved, and the form of the corrugated water retaining plate is continuously maintained at the air inlet end (front end) to reduce resistance; the purpose of filtering large-particle-size water drops at the front end and filtering small-particle-size water drops at the rear end is achieved, the situation that water films are formed on the water baffle when blades are fully loaded is avoided, subsequent water drops are beaten on the water films to splash new water drops, and the overall water blocking efficiency is reduced. The arrangement of the second-stage baffle 3 not only improves the water retaining efficiency and the water carrying capacity, especially improves the separation effect on fine water drops, but also reduces the resistance of the whole water retaining plate.
The relatively large interval part of the water baffle blades 2 on one side of the air inlet end of the water baffle channel is used for separating liquid drops with large particle sizes, the relatively small interval part of the water baffle blades 2 on one side of the air outlet end of the water baffle channel is provided with a water baffle groove and is used for separating liquid drops with small particle sizes, so that the large-particle-size and small-particle-size suspended water drops are separated in a grading mode, the flying water phenomenon after the blades are fully loaded is controlled by the grading filtering scheme, the separation phenomenon of the small-particle-size liquid drops due to the fact that the water baffle blades 2 at the front end (air inlet end) are fully loaded when the water drops are too much is avoided, the rear end (air outlet end) separation is affected, meanwhile, compared with the water baffle part for separating the small-particle-size liquid drops, the resistance is lower, the reduced interval is also beneficial to improving the local air speed, namely the reduced interface channel.
The water baffle blade 2 can be made of traditional materials such as stainless steel, PP and other materials, and can also be made of composite materials taking plastic sheets (such as hard plastic sheets such as PET, PVC, PP, PS, ABS and the like) as base materials, namely, the plastic blade is subjected to double-sided flocking through a plane electrostatic flocking process, so that fluff (such as nylon, viscose, acrylic fibers, artificial fibers and the like) is uniformly attached to the surface of the blade, the water baffle efficiency and the water carrying capacity are improved, particularly the separation effect of fine water drops is improved, the thickness of the water baffle blade compounded by the composite materials is 0.1-0.4 mm, the thickness change of the blade is small, the water flying phenomenon of the water baffle can be effectively reduced, and a good water baffle effect can be achieved under the condition of high liquid drop concentration; meanwhile, fine water drops generated in the impacting process are reduced, the inertia separation effect of the water baffle is enhanced by the fluff, so that the fine water drops carried in the original air flow can be better separated, and the fine water drop separation degree is improved integrally. The separated water drops are more easily converged into large water drops under the action of the fluff and fall off from the water baffle, and the water carrying capacity of the water baffle is improved. The invention can be used with different materials according to different places of use, the common materials and the novel materials mentioned above are only presented by way of illustration and not limitation, and further materials and form modifications can be tried without departing from the spirit of the invention.
While the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are illustrative only and not restrictive, and various modifications which do not depart from the spirit of the present invention and which are intended to be covered by the claims of the present invention may be made by those skilled in the art.
Claims (8)
1. An integral high-efficiency low-resistance water retaining device comprises a water retaining main body and is characterized in that the water retaining main body comprises modular water retaining plate units arranged in a water retaining plate channel, each group of water retaining plate units comprises a water retaining plate frame (1), and a plurality of water retaining plate blades (2) are arranged in the water retaining plate frame (1) and in the direction of fluid; the plurality of water baffle blades are corrugated blades, the water baffle blade (2) is composed of at least one arc-shaped section and a plurality of straight sections, and the arc-shaped section is connected with the straight sections at intervals; the distance between two adjacent water baffle blades (2) is gradually reduced from the air inlet end to the air outlet end of the water baffle channel; the side of the arc-shaped section on one side of the air outlet end on the water baffle blade (2) is provided with a second-stage baffle (3), and the side of the straight line section of the water baffle blade (2) is provided with a plurality of water blocking grooves (4).
2. The integrated high-efficiency low-resistance water retaining device according to claim 1, wherein the secondary baffle (3) is arranged on one side of the bulge of the arc-shaped section to improve the water retaining efficiency and the water carrying capacity, especially the separation effect of fine water drops; the secondary baffle is a U-shaped plate or an arc-shaped plate; the water blocking groove (4) is arranged on the upstream surface of the straight line section.
3. The integral high-efficiency low-resistance water retaining device according to claim 1, wherein the water retaining plate blades (2) comprise three straight plate sections, the lengths of the three straight line sections from the air inlet end to the air outlet end are L1, L2 and L3 respectively, and the lengths of the three straight line sections L1, L2 and L3 of different water retaining plate blades (2) are different, so that the distance between two adjacent water retaining plate blades (2) is gradually reduced from the air inlet end to the air outlet end of a water retaining plate channel, and the separation of water retaining plates with different particle sizes is realized.
4. The integral high-efficiency low-resistance water retaining device according to any one of claims 1 to 3, wherein the water retaining plate channel is used for separating droplets with large particle size at the air inlet side and separating droplets with small particle size at the air outlet side so as to control the influence of the water flying phenomenon after the full loading of the blades on the separation effect of the droplets with small particle size.
5. Integral high-efficiency low-resistance water deflector according to claim 1, characterized in that each set of deflector units comprises 4 deflector blades (2).
6. The integrated high efficiency low resistance water deflector according to claim 1 or 5, wherein the number of sets of the water deflector units arranged in the water deflector channel is determined according to the interface width of the water deflector channel.
7. The integral type high-efficiency low-resistance water retaining device according to claim 1, wherein the thickness of the water retaining plate blade (2) is 0.1-0.4 mm.
8. The integrated high-efficiency low-resistance water deflector according to claim 1 or 7, characterized in that the deflector blade (2) comprises a plastic substrate on which a double-sided flocking is performed by an electrostatic flocking process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333067.2A CN111389104A (en) | 2020-04-24 | 2020-04-24 | Integral high-efficient low resistance water retaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333067.2A CN111389104A (en) | 2020-04-24 | 2020-04-24 | Integral high-efficient low resistance water retaining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111389104A true CN111389104A (en) | 2020-07-10 |
Family
ID=71417098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010333067.2A Pending CN111389104A (en) | 2020-04-24 | 2020-04-24 | Integral high-efficient low resistance water retaining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111389104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137742A (en) * | 2021-03-01 | 2021-07-20 | 青岛海尔空调电子有限公司 | Water baffle assembly and combined air conditioner with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501146A1 (en) * | 1991-01-28 | 1992-09-02 | VEIKI Villamosenergiaipari Kutato Intézet Részvénytársaság | Droplet separator having a honeycomb structure |
| CN2630720Y (en) * | 2003-06-06 | 2004-08-04 | 卢思勤 | Dash plate blade |
| CN101209387A (en) * | 2006-12-29 | 2008-07-02 | 上海霍林化工设备工程有限公司 | Defroster |
| CN102716618A (en) * | 2012-05-29 | 2012-10-10 | 东方电气集团东汽投资发展有限公司 | Vane-type demister |
| CN105749627A (en) * | 2016-04-13 | 2016-07-13 | 上海发电设备成套设计研究院 | Steam-water separator formed by corrugated plates with unequal distances |
| CN212467407U (en) * | 2020-04-24 | 2021-02-05 | 必宜（天津）科技有限公司 | Integral high-efficient low resistance water retaining device |
-
2020
- 2020-04-24 CN CN202010333067.2A patent/CN111389104A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501146A1 (en) * | 1991-01-28 | 1992-09-02 | VEIKI Villamosenergiaipari Kutato Intézet Részvénytársaság | Droplet separator having a honeycomb structure |
| CN2630720Y (en) * | 2003-06-06 | 2004-08-04 | 卢思勤 | Dash plate blade |
| CN101209387A (en) * | 2006-12-29 | 2008-07-02 | 上海霍林化工设备工程有限公司 | Defroster |
| CN102716618A (en) * | 2012-05-29 | 2012-10-10 | 东方电气集团东汽投资发展有限公司 | Vane-type demister |
| CN105749627A (en) * | 2016-04-13 | 2016-07-13 | 上海发电设备成套设计研究院 | Steam-water separator formed by corrugated plates with unequal distances |
| CN212467407U (en) * | 2020-04-24 | 2021-02-05 | 必宜（天津）科技有限公司 | Integral high-efficient low resistance water retaining device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137742A (en) * | 2021-03-01 | 2021-07-20 | 青岛海尔空调电子有限公司 | Water baffle assembly and combined air conditioner with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3912471A (en) | High velocity moisture eliminator | |
| JP2002292215A (en) | High performance filter for gas turbine intake air and filter unit for gas turbine intake air using the same | |
| US7540896B2 (en) | Air handling system | |
| CN107744699B (en) | Automatic blowing and air filtering system for air inlet of transport means | |
| JP2007147119A (en) | Reverse type dust removing device provided with multiplicity of straightening vanes | |
| CN100528287C (en) | Defroster | |
| CN111389104A (en) | Integral high-efficient low resistance water retaining device | |
| CN212467407U (en) | Integral high-efficient low resistance water retaining device | |
| CN214929712U (en) | Dust collector with current equalizer | |
| CN111468405A (en) | Light and heavy material separation system | |
| CN215256526U (en) | Filter screen with flow equalizing function | |
| US2876862A (en) | Dust separator | |
| CN115531982A (en) | Gas-liquid separation blade with microstructure interlayer | |
| CN212619162U (en) | Noise reduction wind scooper and air purification device | |
| CN211987524U (en) | Spiral dust removal defroster, defogging device and absorption tower | |
| CN113586295A (en) | Self-cleaning air filter | |
| CN113232686A (en) | Dust collector with current equalizer | |
| CN214345188U (en) | Inlet air flow distribution device of coal gas filtering dust remover | |
| CN108518357B (en) | High-efficiency defoaming centrifugal fan volute | |
| CN1257005C (en) | Flow field adaptation type demister | |
| CN210699225U (en) | Wet-type dust and oil remover | |
| CN216173212U (en) | Plate-type oil smoke electrostatic field equipment with filter tank collecting device at tail end | |
| CN204723917U (en) | A kind of sack cleaner | |
| CN215822563U (en) | Flow equalizer, dust removal filter screen and air cleaner | |
| CN212348159U (en) | Oblique spray type demister |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |