CN206771397U - A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler - Google Patents
A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler Download PDFInfo
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- CN206771397U CN206771397U CN201720667488.2U CN201720667488U CN206771397U CN 206771397 U CN206771397 U CN 206771397U CN 201720667488 U CN201720667488 U CN 201720667488U CN 206771397 U CN206771397 U CN 206771397U
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- heat boiler
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Abstract
The utility model discloses a kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler, including lifting platform, column, control system, monitoring system, alignment system, drive system and deashing rifle, the column is fixedly connected with lifting platform, the control system is connected with monitoring system, alignment system, drive system respectively, and the drive system is connected with deashing rifle.The utility model provides a kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler, it is applied to deashing and the Fire Tube of Waste Heat Boiler of negative pressure operation in pipe, by way of automatically controlling, manual operation deashing rifle is replaced to carry out deashing by drive mechanism, relatively artificial purge mode, this automatic ash removing device improves cleaning efficiency, reduces hand labor intensity and cost of labor, while avoids injury of the high temperature and high pressure steam to operating personnel when Fire Tube of Waste Heat Boiler leaks.
Description
Technical field
It the utility model is related to cleaning equipment technical field, and in particular to a kind of on-line automatic deashing dress of Fire Tube of Waste Heat Boiler
Put, be widely used in the industries such as petrochemical industry and chemical industry.
Background technology
In petrochemical industry and chemical industry, waste heat boiler is that a kind of main heat recovery or heat transmission equipment, waste heat boiler are divided into
Fire Tube of Waste Heat Boiler and boiler of water-tube waste heat, Fire Tube of Waste Heat Boiler are passed through using high-temperature gas in stove Bottomhole pressure, boiling water from drum
Down-comer flows into boiler bottom, in the heated mode for being changed into steam water interface, drum being returned by tedge of tube wall；Water pipe waste heat boiler
Stove is flowed through in pipe using boiling water, and high-temperature gas flows through the mode outside pipe.
Waste heat boiler is mainly characterized by：1. HTHP, part waste heat flue gas temperature are about up to 1000 DEG C, pressure
4.0MPa；2. chilling, it is reduction side reaction in some technical process, gas must cools as soon as possible, thus waste heat boiler should
With high rate of heat transfer；3. need strictly to control gas outlet temperature；4. dust content is high, powder must be taken into full account in structure
Dirt blocks and washed away abrasion；5. low pressure drop, the pressure drop of gas must be controlled in the range of process conditions license；It is 6. close
Envelope；Some high-temperature gases are inflammable, explosive or poisonous, and waste heat boiler needs very high sealing property.
Waste heat boiler dust stratification will substantially reduce tube bank heat exchange efficiency, easily cause boiler tube overtemperature tube burst, while some lime-ash
Containing corrosive elements, the corrosion of tube wall will be accelerated, reduce service life of equipment.So, ash viscosity high to dust content in flue gas
Strong boiler must take into consideration carry out deashing.The purge mode of waste heat boiler mainly has at present：Steam soot blowing, sonic soot blowing, shock wave
Soot blowing and mechanical oscillation deashing.For different ash ＆ slag dams, structure type, above-mentioned various purge modes have the scope of application and
Advantage and disadvantage, and be used for pipe external ash cleaning, i.e., for water-tube boiler.
Fire Tube of Waste Heat Boiler flue gas flows in tube bank, and tube bank is numerous, and arrangement is intensive, and black dirt is bonded in pipe, and tradition is clear
Apparatus for ash can not almost work.At present, according to different situations to deashing in the pipe of such boiler in different ways, if pot
Stove negative pressure is run, and manually can carry out online ash removal using deashing rifle, due to can not manually observe that barral of a gun enters in boiler tube
Situation, it can not ensure that every pipe was all cleaned, it is understood that there may be partial tube is not cleaned for a long time, and partial tube is weighed
The problem of clearing up again, nearby condition of work is severe for waste heat boiler, and environment temperature is high, and suction has portion gas to human body for a long time
Evil, once and booster during artificial deashing, managing outer high temperature and high pressure steam can spray into flue, and be penetrated by ash removing opening on flue
Go out, easily cause casualties；If boiler is operation under positive pressure, it is necessary to is rushed using after blowing out with pressure-air or water under high pressure
The mode washed carries out deashing.General petrochemical industry and chemical plant installations are high to system steady and continuous service requirement, and frequent shutdown will cause huge
Big economic loss, meanwhile, frequent start-stop will also result in certain damage to equipment.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler, should
For needing deashing and the Fire Tube of Waste Heat Boiler of negative pressure operation in pipe, by way of automatically controlling, people is replaced by drive mechanism
Work operation deashing rifle carries out deashing, relatively artificial purge mode, and this automatic ash removing device improves cleaning efficiency, reduces artificial
Labor intensity and cost of labor, while avoid injury of the high temperature and high pressure steam to operating personnel when Fire Tube of Waste Heat Boiler leaks.
To realize purpose of utility model, the utility model uses following technical scheme：
A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler, including lifting platform, column, control system, monitoring system, it is fixed
Position system, drive system and deashing rifle, the column are fixedly connected with lifting platform, the control system respectively with monitoring system,
Alignment system, drive system connection, the drive system are connected with deashing rifle, and drive system includes trailing arm, transverse arm, vertical arm, indulges
Arm includes driving trailing arm, and transverse arm drives transverse arm, preceding driving transverse arm, vertical arm to drive vertical arm and preceding driving vertical arm after including after including,
Storage needs the space geometry coordinate of deashing pore in control system, can be according to preassigned pore sequence number during automatic ash removing
Deashing is carried out successively, when carrying out deashing to a certain hole, system transfers the hole coordinate automatically, and sends and instruct to servomotor,
Control gear and worm gear wheel to adjust the left and right upper-lower position of transverse arm and vertical arm, pipette tips alignment pore is completed the sky of deashing rifle
Between position, then electric rotating machine works, while transverse arm forward travel, completes barral of a gun and is rotationally advancing feeding, barral of a gun is fed into specified
Position, now outside the fully extended pipe of pipette tips, deashing is completed, and transverse arm retreats, and completion barral of a gun moves back rifle and acted to original position.
Preferably, the drive system includes driving trailing arm, drives transverse arm, preceding driving transverse arm, rear driving vertical arm and preceding afterwards
Vertical arm is driven, the driving trailing arm is fixedly connected with column, drives transverse arm, preceding driving transverse arm and driving trailing arm to slide company after described
Connect, it is described after driving vertical arm be slidably connected with rear driving transverse arm, preceding driving transverse arm, it is described before driving vertical arm with drive afterwards transverse arm,
Preceding driving transverse arm is slidably connected, and by lifting platform, driving trailing arm driving deashing rifle moves up and down, rear to drive transverse arm and preceding driving horizontal
Arm drives deashing rifle side-to-side movement, rear to drive vertical arm and preceding driving vertical arm driving deashing rifle to move forward and backward, and is driven after being arranged in perpendicular
Servomotor driving deashing rifle rotary motion on arm.
Preferably, the drive system includes auxiliary drive mechanism, the auxiliary drive mechanism include some servomotors,
Sliding block slide rail, rack-and-pinion, worm and gear, the auxiliary drive mechanism is respectively with driving trailing arm, driving transverse arm, preceding driving horizontal afterwards
Arm, drive vertical arm, preceding driving vertical arm connection afterwards, servomotor is arranged on transverse arm both ends and centre, as transverse arm side-to-side movement with
The power that vertical arm moves forward and backward, rack and slide rail are arranged on trailing arm and transverse arm surface, slide rail and sliding block as tracks, worm gear
Worm screw is arranged in inside vertical arm, drives vertical arm to move by the servomotor on top, is arranged and is gone in each direction of motion end
Cheng Kaiguan, drive system is set to be moved in setting range.
Two trailing arm is fixed on column, trailing arm upper surface arrangement slide rail and rack, and transverse arm passes through the cunning that coordinates with slide rail
Block is supported on two trailing arms, and transverse arm both ends gear and trailing arm upper rack coordinate, and make horizontal stroke by servomotor drive gear rack
Arm moves along trailing arm direction, and type of drive of the vertical arm along transverse arm direction is consistent along trailing arm mode with transverse arm, arrangement worm screw in vertical arm
Coordinate with the turbine being arranged on transverse arm, drive worm and gear vertical arm is moved forward and backward along transverse arm by servomotor, by upper
State the horizontal movement that type of drive realizes three directions in space.
Preferably, in addition to automatic lid closing/opening manipulator, the automatic lid closing/opening manipulator are described in preceding driving vertical arm
Automatic lid closing/opening manipulator is connected with control system.
Preferably, the monitoring system includes camera, and the camera is arranged in preceding driving vertical arm.
Preferably, the control system includes grating protection system, and grating protection system is arranged on column surrounding, and one
Denier personnel enter the region, and whole mechanism kinematic stops immediately, protect personal safety.
Preferably, the control system includes several travel switches, and the travel switch is arranged in drive system.
Preferably, the control system includes switch board, and the switch board is arranged on lifting platform.
Preferably, the deashing rifle includes pipette tips, barral of a gun and gun breech, and barral of a gun is hollow steel tube, and both ends are welded with pipette tips, gun breech
Connect, pipette tips are in fusiformis, and there is air vent fusiformis front end with rib, and pipette tips diameter is bigger than barral of a gun, than treating that deashing pore internal diameter is small.
Preferably, in addition to rotating feed mechanism, the gun breech is connected using universal joint with rotating feed mechanism, on gun breech
Provided with air vent, air vent is connected by flexible pipe with the air vent on rotating feed mechanism.
Operation principle：
In normal fully automatic operation, according to the seal cover board stored in systems and the locus of tubesheet holes by controlling
Cabinet sends instruction, driving trailing arm, rear driving transverse arm and preceding driving transverse arm, rear driving vertical arm and preceding driving vertical arm adjustment up and down, it is left
Right and front and back position, makes deashing rifle reach specified location, and automatic lid closing/opening Arm expanding clamps corresponding seal cover board, Unscrew
Manipulator retracts original position after seal cover board, it is then in place after deashing rifle be rotationally advancing, sequentially pass through closure plate hole and rear pipe
Plate, into heat exchanger tube, continue into rifle until stretching out front tube tube holes on tube sheet.After one pore deashing, deashing rifle returns to original
Position, automatic lid closing/opening manipulator tighten seal cover board contraposition, and system repeats according to next hole position adjust automatically for needing deashing
Carry out above-mentioned entire exercise.
During whole service, whole process video is sent in switch board panel display by camera, simultaneously
The information storages such as position and deashing rifle feed motor current in deashing process in systems, can carry out statistical analysis and retrieve for examination,
Compressed air is passed through in deashing rifle, for cooling down deashing rifle and soot blowing.
When being switched to manual mode, by the control stick and button on switch board, video monitoring image is coordinated to carry out
Above-mentioned positioning and enter rifle function.
The beneficial effects of the utility model are：
（1）The utility model replaces manual operation by machine, and control accuracy is high, accurate positioning, and possess on-line monitoring and
Function of statistic analysis, artificial input is reduced, it is safe, even if pipe steam leaks, it will not also cause personnel and equipment to damage
Wound；
（2）The utility model realizes Automatic Control, and accurate positioning, deashing speed is fast, efficiency high, and deashing cost is low,
Economic benefit and social benefit are obvious, record hole position coordinate or hole position space geometry position according to self study, by rack and lead
Rail accurately controls deashing rifle around and upper-lower position, is directed at pore automatically, completes auto-feed deashing function, automatic to return
Bit function, auto-feed circulation alignment function；
（3）The utility model possesses on-line monitoring function, can Real Time Observation inside ash removing opening and deashing gun state；
（4）The utility model possesses function of statistic analysis, and tube plug ash degree, adjustment deashing frequency are counted according to deashing process
Rate, system possess analytic statistics function, carry out data statistics to each deashing, pass through the deashing electric current in each hole and time series analysis
To understand deashing complexity and dust stratification degree, the foundation of adjustment operation is provided to operating personnel；
（5）Pipe leakage deashing caused by artificial deashing will not occur for the utility model and repetition deashing problem；
（6）Control signal of the present utility model possesses two kinds of models of local operation and DCS remote operations, and can cut in real time
Change；
（7）Retain manual deashing space in Tthe utility model system, in system jam can temporary transient manual deashing, guarantor
Equipment safety operation is demonstrate,proved, there is failure to remind and unintended emergency parking function.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the structural representation of deashing rifle；
Fig. 4 is the sectional view of B-B in Fig. 3；
In the figures above：1st, column；2nd, trailing arm is driven；3rd, transverse arm is driven afterwards；4th, preceding driving transverse arm；5th, vertical arm is driven afterwards；
6th, preceding driving vertical arm；7th, deashing rifle；8th, camera；9th, automatic lid closing/opening manipulator；10th, switch board；11st, lifting platform；12nd, divulge information
Hole；71st, pipette tips；72nd, barral of a gun；73rd, gun breech.
Embodiment
The utility model is further described by embodiment below in conjunction with the accompanying drawings.
As Figure 1-Figure 4, the on-line automatic deashing device of a kind of Fire Tube of Waste Heat Boiler, including lifting platform 11, column 1, control
System processed, monitoring system, alignment system, drive system and deashing rifle 7, the column 1 are fixedly connected with lifting platform 11, the control
System processed is connected with monitoring system, alignment system, drive system respectively, and the drive system is connected with deashing rifle 7, drive system
Including trailing arm, transverse arm, vertical arm, trailing arm includes driving trailing arm 2, and transverse arm drives transverse arm 3, preceding driving transverse arm 4 after including, vertical arm includes
Vertical arm 5 and preceding driving vertical arm 6 are driven afterwards, and the space geometry coordinate for needing deashing pore, automatic ash removing are stored in control system
When can carry out deashing successively according to preassigned pore sequence number, when to a certain hole carry out deashing when, system transfers the hole automatically
Coordinate, and send and instruct to servomotor, control gear and worm gear wheel to adjust the left and right of transverse arm and vertical arm, upper-lower position,
Pipette tips 71 are made to be directed at the space orientation that pore completes deashing rifle 7, then electric rotating machine works, while transverse arm forward travel, completes
Barral of a gun 72 is rotationally advancing feeding, and barral of a gun 72 is fed into specified location, and now outside 71 fully extended pipe of pipette tips, deashing is completed, transverse arm
Retreat, completion deashing rifle 7 moves back rifle and acted to original position.
In addition, the drive system includes driving trailing arm 2, rear driving transverse arm 3, preceding driving transverse arm 4, rear driving vertical arm 5 and
Preceding driving vertical arm 6, the driving trailing arm 2 are fixedly connected with column 1, drive transverse arm 3, preceding driving transverse arm 4 and driving vertical after described
Arm 2 is slidably connected, and drives vertical arm 5 to be slidably connected with rear driving transverse arm 3, preceding driving transverse arm 4 after described, vertical arm 6 is driven before described
It is slidably connected with rear driving transverse arm 3, preceding driving transverse arm 4, by lifting platform 11, driving trailing arm 2 drives deashing rifle 7 to move up and down,
Transverse arm 3 and preceding driving transverse arm 4 is driven to drive the side-to-side movement of deashing rifle 7 afterwards, it is rear to drive vertical arm 5 and preceding driving vertical arm 6 to drive deashing
Rifle 7 is moved forward and backward, and the rotary motion of servomotor driving deashing rifle 7 in vertical arm 5 is driven after being arranged in.
In addition, the drive system includes auxiliary drive mechanism, the auxiliary drive mechanism includes some servomotors, cunning
Block slide rail, rack-and-pinion, worm and gear, the auxiliary drive mechanism are horizontal with driving trailing arm 2, rear driving transverse arm 3, preceding driving respectively
Arm 4, rear driving vertical arm 5, preceding driving vertical arm 6 connect, and servomotor is arranged on transverse arm both ends and centre, as transverse arm side-to-side movement
The power moved forward and backward with vertical arm, rack and slide rail are arranged on trailing arm and transverse arm surface, slide rail and sliding block as tracks, snail
Worm and gear is arranged in inside vertical arm, drives vertical arm to move by the servomotor on top, is arranged in each direction of motion end
Travel switch, drive system is set to be moved in setting range.
Two trailing arm is fixed on column 1, trailing arm upper surface arrangement slide rail and rack, and transverse arm passes through the cunning that coordinates with slide rail
Block is supported on two trailing arms, and transverse arm both ends gear and trailing arm upper rack coordinate, and make horizontal stroke by servomotor drive gear rack
Arm moves along trailing arm direction, and type of drive of the vertical arm along transverse arm direction is consistent along trailing arm mode with transverse arm, arrangement worm screw in vertical arm
Coordinate with the turbine being arranged on transverse arm, drive worm and gear vertical arm is moved forward and backward along transverse arm by servomotor, by upper
State the horizontal movement that type of drive realizes three directions in space.
In addition, also including automatic lid closing/opening manipulator 9, the automatic lid closing/opening manipulator 9 is arranged in preceding driving vertical arm 6, institute
State automatic lid closing/opening manipulator 9 to be connected with control system, the monitoring system includes camera 8, and the camera 8 is arranged on forerunner
In dynamic vertical arm 6, the control system includes grating protection system, and the grating protection system is arranged on the surrounding of column 1, once people
Member enters the region, and whole mechanism kinematic stops immediately, protects personal safety, and the control system is opened including several strokes
Close, the travel switch is arranged in drive system, and the control system includes switch board 10, and the switch board 10, which is arranged on, to be risen
Drop on platform 11.
In addition, the deashing rifle 7 includes pipette tips 71, barral of a gun 72 and gun breech 73, barral of a gun 72 is hollow steel tube, both ends and pipette tips
71st, gun breech 73 welds, and pipette tips 71 are in fusiformis, and there is air vent 12 fusiformis front end with rib, and the diameter of pipette tips 71 is bigger than barral of a gun 72, than
Treat that deashing pore internal diameter is small, in addition to rotating feed mechanism, the gun breech 73 are connected using universal joint with rotating feed mechanism, rifle
Tail 73 is provided with air vent 12, and air vent 12 is connected by flexible pipe with the air vent 12 on rotating feed mechanism.
Operation principle：
In normal fully automatic operation, according to the seal cover board stored in systems and the locus of tubesheet holes by controlling
Cabinet 10 sends instruction, and driving trailing arm 2, rear driving transverse arm 3 and preceding driving transverse arm 4, rear driving vertical arm 5 and preceding driving vertical arm 6 adjust
Up and down, left and right and front and back position, deashing rifle 7 is made to reach specified location, automatic lid closing/opening manipulator 9, which stretches out, clamps corresponding closure
Plate, manipulator retracts original position after Unscrew seal cover board, it is then in place after deashing rifle 7 be rotationally advancing, sequentially pass through sealing
Cover board hole and back tube sheet, into heat exchanger tube, continue into rifle until stretching out front tube tube holes on tube sheet.After one pore deashing, clearly
Grey rifle 7 returns to original position, and automatic lid closing/opening manipulator 7 tightens seal cover board contraposition, and system is according to next hole for needing deashing
Position adjust automatically, repeats above-mentioned entire exercise.
During whole service, whole process video is sent in the panel display of switch board 10 by camera 8, together
When deashing process in position and the information storage such as the feed motor current of deashing rifle 7 in systems, statistical analysis and tune can be carried out
See, compressed air is passed through in deashing rifle 7, for cooling down deashing rifle 7 and soot blowing.
When being switched to manual mode, by the control stick and button on switch board 10, video monitoring image is coordinated to enter
The above-mentioned positioning of row and enter rifle function.
Specific embodiment of the utility model is the foregoing is only, but architectural feature of the present utility model is not limited to
This, the utility model can be used on similar product, and any those skilled in the art is in field of the present utility model, institute
The change or modification of work are all covered among the scope of the claims of the present utility model.
Claims (10)
- A kind of 1. on-line automatic deashing device of Fire Tube of Waste Heat Boiler, it is characterised in that：Including lifting platform, column, control system, prison Control system, alignment system, drive system and deashing rifle, the column are fixedly connected with lifting platform, the control system respectively with Monitoring system, alignment system, drive system connection, the drive system are connected with deashing rifle.
- 2. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 1, it is characterised in that：The drive system bag Include driving trailing arm, drive transverse arm, preceding driving transverse arm, rear driving vertical arm and preceding driving vertical arm afterwards, the driving trailing arm is consolidated with column Fixed connection, rear driving transverse arm, preceding driving transverse arm and the driving trailing arm are slidably connected, and drive vertical arm and rear driving horizontal after described Arm, preceding driving transverse arm are slidably connected, and drive vertical arm to be slidably connected with rear driving transverse arm, preceding driving transverse arm before described.
- 3. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2, it is characterised in that：The drive system bag Auxiliary drive mechanism is included, the auxiliary drive mechanism includes some servomotors, sliding block slide rail, rack-and-pinion, worm and gear, institute State auxiliary drive mechanism respectively with driving trailing arm, afterwards drive transverse arm, it is preceding driving transverse arm, afterwards drive vertical arm, it is preceding driving vertical arm be connected.
- 4. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2 or claim 3, it is characterised in that：Also include automatic Cover-opening manipulator, the automatic lid closing/opening manipulator are arranged in preceding driving vertical arm, the automatic lid closing/opening manipulator and control system Connection.
- 5. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2 or claim 3, it is characterised in that：The monitoring system System includes camera, and the camera is arranged in preceding driving vertical arm.
- 6. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2 or claim 3, it is characterised in that：The control system System includes grating protection system, and the grating protection system is arranged on column surrounding.
- 7. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2 or claim 3, it is characterised in that：The control system System includes several travel switches, and the travel switch is arranged in drive system.
- 8. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2 or claim 3, it is characterised in that：The control system System includes switch board, and the switch board is arranged on lifting platform.
- 9. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 2 or claim 3, it is characterised in that：The deashing rifle Comprising pipette tips, barral of a gun and gun breech, barral of a gun is hollow steel tube, and both ends are welded with pipette tips, gun breech, and pipette tips are in fusiformis, fusiformis front end band Rib, and have air vent, pipette tips diameter is bigger than barral of a gun, than treating that deashing pore internal diameter is small.
- 10. the on-line automatic deashing device of Fire Tube of Waste Heat Boiler as claimed in claim 9, it is characterised in that：Also include being rotated into To mechanism, the gun breech is connected using universal joint with rotating feed mechanism, and gun breech is provided with air vent, and air vent passes through flexible pipe It is connected with the air vent on rotating feed mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667488.2U CN206771397U (en) | 2017-06-09 | 2017-06-09 | A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720667488.2U CN206771397U (en) | 2017-06-09 | 2017-06-09 | A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler |
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| Publication Number | Publication Date |
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| CN206771397U true CN206771397U (en) | 2017-12-19 |
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| CN201720667488.2U Active CN206771397U (en) | 2017-06-09 | 2017-06-09 | A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062283A (en) * | 2017-06-09 | 2017-08-18 | 杭州锅炉集团股份有限公司 | A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler |
| CN108402710A (en) * | 2018-03-05 | 2018-08-17 | 温州金点知识产权顾问有限公司 | Trade mark archives collect cabinet |
-
2017
- 2017-06-09 CN CN201720667488.2U patent/CN206771397U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062283A (en) * | 2017-06-09 | 2017-08-18 | 杭州锅炉集团股份有限公司 | A kind of on-line automatic deashing device of Fire Tube of Waste Heat Boiler |
| CN108402710A (en) * | 2018-03-05 | 2018-08-17 | 温州金点知识产权顾问有限公司 | Trade mark archives collect cabinet |
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Address after: 1216, danionggang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310021 Patentee after: Xizi clean energy equipment manufacturing Co.,Ltd. Address before: 1216, danionggang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310021 Patentee before: HANGZHOU BOILER GROUP Co.,Ltd. |