CN101613024B - Breathing apparatus for normal pressure storage tank - Google Patents
Breathing apparatus for normal pressure storage tank Download PDFInfo
- Publication number
- CN101613024B CN101613024B CN2008100394402A CN200810039440A CN101613024B CN 101613024 B CN101613024 B CN 101613024B CN 2008100394402 A CN2008100394402 A CN 2008100394402A CN 200810039440 A CN200810039440 A CN 200810039440A CN 101613024 B CN101613024 B CN 101613024B
- Authority
- CN
- China
- Prior art keywords
- storage tank
- normal pressure
- pressure storage
- breathing apparatus
- fan blade
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a breathing apparatus for a normal pressure storage tank, which relates to a self-cleaning type breathing apparatus. The breathing apparatus is arranged on the top of the normal pressure storage tank and comprises a fan blade box internally provided with fan blades and a driving mechanism thereof, a sliding bearing connecting mechanism in driving connection with the fan blades, a pass burble spiral scraper in driving connection with the sliding bearing connecting mechanism, a ventilating pipe group running through the mechanism and a ventilating pipe of the normal pressure storage tank, wherein the pass burble spiral scraper is formed by forming micropores on a burble spiral scraper. The breathing apparatus for the normal pressure storage tank adopts the self-cleaning breathing apparatus which is driven by wind energy and has self-cleaning function to achieve the aims of ensuring the balance between the pressure in the tank and the atmospheric pressure in the process of lifting the liquid surface in the storage tank, preventing breathing holes and pipelines from being blocked, improving the anti-explosion and corrosion resisting capabilities, and simultaneously improving the safe using rate of the apparatus, and reducing the production and maintenance cost.
Description
Technical field
The present invention relates to a kind of normal pressure storage tank safety device, particularly, the present invention relates to the wind energy automatically cleaning breathing apparatus for normal pressure storage tank that a kind of chemical industry, pharmaceutical manufacturing enterprise are used.
Background technology
For guaranteeing in the storage tank in the liquid surface lifting process in the groove and the barometric pressure equilibrium of forces; be that preventive device and material are carried normally; play safety effect, the be everlasting normal pressure storage tank cell body (mostly being the groove top) of chemical raw material storage tank etc. of the big-and-middle moulded coal of domestic each, petrochemical enterprise is provided with spiracle, tube apparatus etc.
Yet, because the characteristics of chemical raw material storage tank storage medium, as organic medias such as tar, ammoniacal liquor, its volatile ingredient tar fog, ammonia, naphthalene etc. are along with the variation of temperature and groove position etc., breather apparatus (hole, pipe) is regular to gather, attaches to the corrugated hose inwall, the corrosion pipeline inwall causes the obstruction of spiracle, pipeline simultaneously.
For this reason, now in domestic each Chemical Manufacture enterprise, normal pressure storage tank often is large-scale storage tank equipment, and the breather apparatus that is used for normal pressure storage tank is straight and elbow or hole pattern.Though it has simplicity of design, is convenient to the characteristics of installation, exist self-cleaning poor, easily stop up, problem such as maintenance intervals is frequent.
For example, described device has often directly been broken the interior equilibrium of pressure of storage tank because of the obstruction of breather apparatus (hole, pipe), so will bring direct destruction to impact (inhaling flat distortion etc. as the cell wall negative pressure) to the agent structure of storage tank.Thus, not only influenced produce continuously normal, also may leak outside because of danger medium in the groove causes the generation of accident.On the other hand, because storage tank is breathed hole stops up the phenomenon that directly causes the reservoir bodies structural failure and take place in that the groove zone device of some Coal Chemical Industry originating firms is existing.The number of times that takes place under the above-mentioned situation condition that ambient temperature is lower in the winter time is more frequent.
Again, in more close documents, though some breathing apparatus are provided, as spiracle, pipe, valve etc., it is primarily aimed at volatile mediums such as benzene class and plays explosion-proof partition effect, and the automatic cleaning action of unmatchful spiracle hole, pipeline.
That is, the problem that in the past existed is:
(1) owing in tar, the ammoniacal liquor storage tank certain temperature requirement being arranged, and the organic component that contains easily crystallization such as a large amount of ammonia, naphthalene, tar fog, piece in the groove in the evaporation surface waste gas, this part flow of material temperature drop when diffuse channel is obvious, part naphthalene crystal, oil tar lump are just retained and are attached on the diffuse channel inwall, exceed and will directly impact the main equipment structure when cell body is designed to bear pressure when air-flow flux in the pipeline is limited.
(2) this design is difficult to judge when the breathing clogged hose or line is not obvious, is unfavorable for daily inspection maintenance.
(3) breathing valve is positioned between pneumostome and cell body, is unfavorable for the block clearing operation when stopping state takes place.
(4) more frequently pull down the consume that blocking pipeline has increased manpower and financial resources.
In addition, there is problem explosion-proof, antiknock in domestic each Chemical Manufacture enterprise common chemical chemical storage tank now.Though the strength problem of element also is one of the important content that must consider of designer.But because the strength of shock wave that gas burst produces is very big in the shell, different stage, different types of gas mixture, explosion pressure is different, generally all can produce 6-10 superpressure doubly.The size of shell internal volume, shape and pressure release area difference, explosion pressure all are different.Shock absorber is set, and will be effectively to weaken powerful shock wave to the direct effect of this element.Adopt the breather apparatus and the pumping equipment of common flameproof equipment shell, though also be a kind of special flameproof enclosure parts, energising equipment and the contact of each parts thereof, friction position produce electro spark and have also reduced explosion-proof, antiknock ability simultaneously.
Summary of the invention
For the breathing apparatus for normal pressure storage tank (hole, pipe) that solves complicated component in the existing coal chemical industry enterprises easily stops up, the breathing pipe inwall easily adheres to material, prevent to bring direct destruction to impact to the agent structure of storage tank, the problem of explosion-proof, antiknock etc. the objective of the invention is to; A kind of breathing apparatus for normal pressure storage tank is provided, described breathing apparatus for normal pressure storage tank adopts the breather apparatus of nature clean wind energy transmission self-cleaning function, reach thus and guarantee the interior and barometric pressure equilibrium of forces of groove in the interior liquid surface lifting process of storage tank, prevent the obstruction of spiracle, pipeline, improve explosion-proof, resistance to corrosion, simultaneously, improve the safe handling rate of equipment, the purpose of reduction production maintenance cost.
For achieving the above object, breathing apparatus for normal pressure storage tank technical scheme of the present invention is as follows:
Breathing apparatus for normal pressure storage tank of the present invention is arranged on normal pressure storage tank groove top, and described breathing apparatus for normal pressure storage tank is a kind of self-cleaning breather apparatus, comprising:
The fan blade case of built-in fan blade and transmission device thereof, the plain bearing bindiny mechanism that is in transmission connection with described fan blade, the pass flow-disturbing helical flight that is in transmission connection with described plain bearing bindiny mechanism, connect the breather pipe group of said mechanism and normal pressure storage tank breather pipe, described pass flow-disturbing helical flight is to offer micropore on the flow-disturbing helical flight.
Because the horizontal installation site of storage tank breather apparatus mostly is storage tank groove top, bigger level height and spacious is on every side generally all arranged, possess certain Wind Power Utilization condition.In addition, owing in tar, the ammoniacal liquor storage tank certain temperature requirement is arranged, and the organic component that contains easily crystallization such as a large amount of ammonia, naphthalene, tar fog, piece in the groove in the evaporation surface waste gas, this part flow of material temperature drop when diffuse channel is obvious, part naphthalene crystal, oil tar lump are just retained and are attached on the diffuse channel inwall, exceed and will directly impact the main equipment structure when cell body is designed to bear pressure when air-flow flux in the pipeline is limited.Pass flow-disturbing helical flight is provided with in the breather pipe group.Fan blade in the fan blade case rotates, and passes on Gong to drive transmission shaft with the higher plain bearing (drive bearing can adopt with specific speed or increase specific speed) of interlock driving efficiency, drives the pass flow-disturbing scraper plate in the corrugated hose again.Owing to be difficult for gathering sticking and the excessive ratio of air communication preferably being arranged of solids such as tar, naphthalene after the spoiler perforate), materials such as tar, naphthalene condense to destroy, the forming process of crystallization, thereby reach the anti-blocking purpose of diffuse channel.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that the built-in fan blade of fan blade case is selected the wind machine of 6 °～14 ° of the blade of heavy camber aerofoil profile or gurney flap and setting angles for use.
The wind machine that blade qualifying Buddhist nun's wing flap of heavy camber aerofoil profile and setting angle are 6 °～14 ° power coefficient higher, help wind power utilization, raise the efficiency.
So-called gurney flap is promptly opened up to installing a suitably tablet of height additional along blade at aircraft aerofoil profile trailing edge.Studies show that: gurney flap has changed the distribution of pressure on aircraft aerofoil profile suction surface and the acting face effectively.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that described pass flow-disturbing helical flight is " eight " font pin, 2～3 groups.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that described fan blade case can be opened the fan blade case that (lifting) opens the formula inspection door for band.
Thus, maintenance and the device interior inspection for this equipment provides advantageous conditions more.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that the manual rocking bar interface of described fan blade case arranged outside.Thus, when no wind energy is utilized, but M/C.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that described vent window is set to be parallel to the corrugated hose that vertically pushes up at groove, breather pipe is the inverse taper structure.
Thus, can adopt the setting of two sections ventilations, the two ends pore that two sections ventilations are horizontal pipe can carry out the motion of air-flow, the balance of more favourable groove external and internal pressure simultaneously.In addition, these breather line two ends are inverse taper ramp structure 10-3, seal in positive effect to preventing rainwater etc., make influence when the breather pipe structure more is not vulnerable to rainy season.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that the existing breather apparatus of the direct utilization of this device diffuses the valve lower flange and connects.
According to the present invention, described breathing apparatus for normal pressure storage tank adopts the breather apparatus of nature clean wind energy transmission self-cleaning function, reach thus and guarantee the interior and barometric pressure equilibrium of forces of groove in the interior liquid surface lifting process of storage tank, prevent the obstruction of spiracle, pipeline, improve explosion-proof, resistance to corrosion, simultaneously, improve the safe handling rate of equipment, the purpose of reduction production maintenance cost.
The simple declaration of accompanying drawing
Fig. 1 is the cross-sectional schematic of breathing apparatus for normal pressure storage tank of the present invention.
Fig. 2 is provided with scheme drawing for normal pressure storage tank corrugated hose in the past.
Fig. 3 is the transmission shaft scheme drawing of breathing apparatus for normal pressure storage tank of the present invention.
Fig. 4 is the scheme drawing of breathing apparatus for normal pressure storage tank shell of the present invention.
Fig. 5 A, B are respectively the cutaway view and the birds-eye view of the pass flow-disturbing scraper component of breathing apparatus for normal pressure storage tank of the present invention.
Fig. 6 A is the working state figure of normal pressure wind energy automatically cleaning storage tank breather apparatus of the present invention when material liquid surface rises in the storage tank.
Fig. 6 B is the working state figure of normal pressure wind energy automatically cleaning storage tank breather apparatus of the present invention when material liquid surface descends in the storage tank.
Among the figure, 1: the fan blade check screw; 2: the fan blade setting up piece; 3: the fan blade fixed dam; 4: transmission shaft; 5: the fan blade case; 6: the fan blade positioning key; 7: the radial sleeve bearing hold-doun nut; 8: the radial sleeve bearing setting up piece; 9: radial sleeve bearing; 10: transmission gearbox (plain bearing bindiny mechanism); 11: the radial sleeve bearing positioning key; 12: axial plain bearing; 13: the axial plain bearing positioning key; 14: the axial plain bearing setting up piece; 15: the axial plain bearing hold-doun nut; 16: the scraper plate positioning key; 17: scraper component; 18: the scraper plate setting up piece; 19: the scraper plate check screw; 20: cell body is taken over.
10-1: transmission case body top communication port; 10-2: transmission case body; 10-3: aspiration ventilation mouth; 10-4: transmission case body is taken over; 10-5: transmission case body is taken over and the cell body pipe connecting flange, and, 17-1: scraper component sleeve; 17-2: pass flow-disturbing scraper plate (needing reinforced rib).
21:(tar or ammoniacal liquor etc.) storage tank, 22: breathing valve, 23: spiracle.
The specific embodiment
Below, with reference to accompanying drawing, further specify breathing apparatus for normal pressure storage tank of the present invention for embodiment.
On certain coking coal coal gas refinery groove tank field 6 4500 cubic meter tar vat and 6 ammoniacal liquor vat groove tops, installation breathing apparatus for normal pressure storage tank of the present invention is set.Described breathing apparatus for normal pressure storage tank comprises:
The fan blade case 5 of built-in fan blade and transmission device thereof, the plain bearing bindiny mechanism that is in transmission connection with the fan blade of described fan blade case 5, it is transmission gearbox 10, with described plain bearing bindiny mechanism be the pass flow-disturbing helical flight 17 that transmission gearbox 10 is in transmission connection, connect the breather pipe group of said mechanism and normal pressure storage tank breather pipe, described pass flow-disturbing helical flight 17 is for offering micropore on the flow-disturbing helical flight.
Wherein partial component such as flow-disturbing scraper plate 17, transmission case body are plain bearing bindiny mechanism 10, and take over and flange etc. needs according to the actual conditions selected material.The calculating of fan blade can be carried out design calculation and backward compatible according to upperlimit in the different corrugated hose calibers, and its material can be selected the metal matter of less expensive for use.Member fan blade, radial sleeve bearing, axial plain bearing also can be non-metallic material in selection.Running part can be selected the higher plain bearing of driving efficiency etc. for use; The fan blade case then can adopt different materials according to actual conditions; 17 of pass flow-disturbing scraper plates select that material is light for use, better, the anti-certain high temperature of withstanding corrosion (90 ℃) and the polytetrafluoroethylene of certain toughness is arranged.Surplus member is then selected Q235 carbon steel (A, B, C all can) material for use.Because its breathing mouth of pipe size of different storage tanks differs, thereby concrete size should change according to different actual needs calmly, but agent structure and parts are then according to shown in the accompanying drawing, only confined bearing and the border size to bearing substantially at this, the about 100MM of bearing length, radial bearing are about 50MM.
Fan blades in the built-in fan blade case 5 are selected the wind machine of 6 °～14 ° of the blade of heavy camber aerofoil profile or gurney flap and setting angles for use.The wind machine that blade qualifying Buddhist nun's wing flap of heavy camber aerofoil profile and setting angle are 6 °～14 ° power coefficient higher, help wind power utilization, raise the efficiency.
According to breathing apparatus for normal pressure storage tank of the present invention, described pass flow-disturbing helical flight 17 is " eight " font pin, and 2～3 groups are set.Described fan blade case 5 can be opened the fan blade case that (lifting) opens the formula inspection door for band.
Thus, maintenance and the device interior inspection for this equipment provides condition.
According to breathing apparatus for normal pressure storage tank of the present invention, the described manual rocking bar interface of fan blade case arranged outside (not shown).Thus, when no wind energy is utilized, but M/C.
According to breathing apparatus for normal pressure storage tank of the present invention, it is characterized in that described vent window is set to be parallel to the corrugated hose that vertically pushes up at groove, breather pipe 10-3 is the inverse taper structure.
In embodiment 1, the existing breather apparatus of the direct utilization of this device diffuses the valve lower flange and connects.
With reference to Fig. 6 A and Fig. 6 B, Fig. 6 A is the working state figure of normal pressure wind energy automatically cleaning storage tank breather apparatus of the present invention when material liquid surface rises in the storage tank.Fig. 6 B is the working state figure of normal pressure wind energy automatically cleaning storage tank breather apparatus of the present invention when material liquid surface descends in the storage tank.
As shown in the figure, at first, this device is plugged into and is erected in plane, normal pressure storage tank groove top, when material medium storage liquid level changes in the storage tank, the stream condition that has just taken place to exhale this moment and inhaled changes, for release portion pressure, the air-flow in the storage tank rises and falls trapezoidal vent window through 10-5,10-4 direction by 10-3 by pore and discharge and reach balance when liquid level in the storage tank rises; On the contrary, for the compensating groove internal pressure, air-flow then sucks along the 10-3 vent window and enters in the groove through 10-4,10-5 direction when liquid level in the storage tank descends, and to prevent reservoir structure structural failure such as flat takes place to inhale.
And no matter air-flow rises or when descending, the fan blade on breather apparatus top then utilizes wind-force or high pressure draft to be level 360 degree and rotates, with wind energy transformation to be mechanical energy drive transmission shaft synchronization action, the pass spoiler of captive joint is able to synchronous rotation with it thereupon, thereby materials such as tar, naphthalene condense to destroy, the forming process of crystallization, reach and diffuse the anti-blocking purpose of pore.
According to the present invention, described breathing apparatus for normal pressure storage tank adopts the breather apparatus of nature clean wind energy transmission self-cleaning function, reach thus and guarantee the interior and barometric pressure equilibrium of forces of groove in the interior liquid surface lifting process of storage tank, prevent the obstruction of spiracle, pipeline, improve explosion-proof, resistance to corrosion, simultaneously, improve the safe handling rate of equipment, the purpose of reduction production maintenance cost.
Claims (7)
1. breathing apparatus for normal pressure storage tank, described breathing apparatus for normal pressure storage tank is a kind of self-cleaning breather apparatus, is arranged on normal pressure storage tank groove top, comprising:
The fan blade case of built-in fan blade and transmission device thereof,
The plain bearing bindiny mechanism that is in transmission connection with described fan blade,
The pass flow-disturbing helical flight that is in transmission connection with described plain bearing bindiny mechanism,
Connect the breather pipe group of above-mentioned fan blade case, plain bearing bindiny mechanism and normal pressure storage tank breather pipe,
Offer micropore on the described pass flow-disturbing helical flight.
2. breathing apparatus for normal pressure storage tank as claimed in claim 1 is characterized in that, the fan blade in the built-in fan blade case is selected the blade or the gurney flap of heavy camber aerofoil profile for use, and setting angle is 6 °～14 °.
3. breathing apparatus for normal pressure storage tank as claimed in claim 1 is characterized in that, described pass flow-disturbing helical flight is " eight " font pin, 2～3 groups.
4. breathing apparatus for normal pressure storage tank as claimed in claim 1 is characterized in that, described fan blade case is the fan blade case of band openable inspection door.
5. breathing apparatus for normal pressure storage tank as claimed in claim 1 is characterized in that, the manual rocking bar interface of described fan blade case arranged outside.
6. breathing apparatus for normal pressure storage tank as claimed in claim 1 is characterized in that described breathing apparatus for normal pressure storage tank is provided with vent window, and described vent window is set to be parallel to the corrugated hose that vertically pushes up at groove, and described breather pipe is the inverse taper structure.
7. breathing apparatus for normal pressure storage tank as claimed in claim 1 is characterized in that, the existing breather apparatus of the direct utilization of this device diffuses the valve lower flange and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100394402A CN101613024B (en) | 2008-06-24 | 2008-06-24 | Breathing apparatus for normal pressure storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100394402A CN101613024B (en) | 2008-06-24 | 2008-06-24 | Breathing apparatus for normal pressure storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101613024A CN101613024A (en) | 2009-12-30 |
| CN101613024B true CN101613024B (en) | 2011-02-09 |
Family
ID=41492939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100394402A Expired - Fee Related CN101613024B (en) | 2008-06-24 | 2008-06-24 | Breathing apparatus for normal pressure storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101613024B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819124B (en) * | 2016-04-22 | 2018-01-23 | 辽宁石油化工大学 | Naphthalene tank breather valve strengthens crystallisation by cooling removing device |
| CN110280097A (en) * | 2019-08-06 | 2019-09-27 | 上海超高环保科技股份有限公司 | Chimneying is sustained suction unit and implementation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147096A (en) * | 1977-06-01 | 1979-04-03 | Dresser Industries, Inc. | Breather vent for vapor vent valve |
| US4181690A (en) * | 1977-05-18 | 1980-01-01 | S.A. Delta Neu | Ventilation and air conditioning unit |
| CN2054022U (en) * | 1989-09-23 | 1990-03-07 | 湖南省石油公司岳阳分公司 | Automatic test warner for pressure of breather valve in oil storage tank |
| CN2195482Y (en) * | 1994-06-09 | 1995-04-26 | 辽河油田勘探局石油化工总厂 | Respirometer for pitch motor railcar |
| US6238191B1 (en) * | 1998-07-21 | 2001-05-29 | Robert Bosch Gmbh | Apparatus for supplying a fuel by means of a fuel supply unit arranged in a housing |
| CN2597404Y (en) * | 2003-01-29 | 2004-01-07 | 顾兵 | Safety breathing valve for oil cylinder |
-
2008
- 2008-06-24 CN CN2008100394402A patent/CN101613024B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181690A (en) * | 1977-05-18 | 1980-01-01 | S.A. Delta Neu | Ventilation and air conditioning unit |
| US4147096A (en) * | 1977-06-01 | 1979-04-03 | Dresser Industries, Inc. | Breather vent for vapor vent valve |
| CN2054022U (en) * | 1989-09-23 | 1990-03-07 | 湖南省石油公司岳阳分公司 | Automatic test warner for pressure of breather valve in oil storage tank |
| CN2195482Y (en) * | 1994-06-09 | 1995-04-26 | 辽河油田勘探局石油化工总厂 | Respirometer for pitch motor railcar |
| US6238191B1 (en) * | 1998-07-21 | 2001-05-29 | Robert Bosch Gmbh | Apparatus for supplying a fuel by means of a fuel supply unit arranged in a housing |
| CN2597404Y (en) * | 2003-01-29 | 2004-01-07 | 顾兵 | Safety breathing valve for oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101613024A (en) | 2009-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101613024B (en) | Breathing apparatus for normal pressure storage tank | |
| CN201475454U (en) | Symmetrical balance fire retardance breather valve | |
| CN107986595B (en) | Method for collecting and treating odor of sludge concentration tank | |
| CN202469493U (en) | Simple anti-leaking device of coal gas dewatering device | |
| CN201697298U (en) | Water seal for discharging condensed water of combined type air conditioner | |
| CN213433758U (en) | Anaerobic fermentation biogas purification and dehydration device | |
| CN108543799A (en) | A kind of fixed-end forces device | |
| CN219508756U (en) | Unpowered inspection shaft ventilation deodorizing device | |
| CN207567185U (en) | A kind of device for extracting coal tar | |
| CN213578485U (en) | Coal drying, dedusting and feeding system utilizing flue gas for heating | |
| CN208347939U (en) | A kind of environment-friendly type turbine installation | |
| CN208642189U (en) | Coal-burning boiler tail fume and dust device | |
| CN106948460B (en) | Underground water pipeline valve well microcirculation air exchange method | |
| CN201925503U (en) | Nitrogen-seal gas stop valve | |
| CN206508760U (en) | The pipe-line system of the supporting slurry circulating pump of desulfuration absorbing tower | |
| CN219409636U (en) | Concentrated gas storage and gas supply control system suitable for submerged combustion evaporation biogas | |
| CN219976160U (en) | Buffer structure for raw water dosing pipeline | |
| CN211178022U (en) | Smoke tower suitable for waste incineration power plant | |
| CN221045775U (en) | Energy-saving chimney rain recovery device | |
| CN213725707U (en) | Desulfurizing tower for biogas purification | |
| CN201241652Y (en) | Toxic harmful gas flow guide apparatus of repairing well head | |
| CN212594898U (en) | Ammonium sulfate slurry ash removal structure | |
| CN204644088U (en) | The gas discharging apparatus of septic tank | |
| CN218627668U (en) | Drying equipment using low-energy-level steam | |
| CN213492884U (en) | Evaporate and press waste gas treatment system in fly ash brick production process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |