CN107314140A - Dust nonflame bleeder - Google Patents
Dust nonflame bleeder Download PDFInfo
- Publication number
- CN107314140A CN107314140A CN201710589180.5A CN201710589180A CN107314140A CN 107314140 A CN107314140 A CN 107314140A CN 201710589180 A CN201710589180 A CN 201710589180A CN 107314140 A CN107314140 A CN 107314140A
- Authority
- CN
- China
- Prior art keywords
- venting
- plate
- dust
- dust explosion
- flame retardant
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 87
- 238000004880 explosion Methods 0.000 claims abstract description 66
- 238000013022 venting Methods 0.000 claims abstract description 65
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003063 flame retardant Substances 0.000 claims abstract description 32
- 230000008676 import Effects 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 8
- 239000010935 stainless steel Substances 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 15
- 244000144985 peep Species 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 8
- 238000012806 monitoring device Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
- F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention relates to a kind of dust nonflame bleeder, including venting of dust explosion plate and venting of dust explosion cavity, import and outlet are provided with the venting of dust explosion cavity, the venting of dust explosion plate is connected in the import of the venting of dust explosion cavity, the exit of the venting of dust explosion cavity is provided with flame retardant bed, and the flame retardant bed uses the filter screen of stainless steel；The outlet of the venting of dust explosion cavity is from the side sector.Flame retardant bed in the present invention, as resistance fire material, is improved flow rate, reduces the weight of flame retardant bed, reduce cost using stainless steel filtering net；Flame retardant bed is designed to sector structure, increases discharge area；The present invention is installed and convenient disassembly.
Description
Technical field
The present invention relates to applied to the nonflame pressure release module on pipeline, specifically a kind of dust nonflame bleeder.
Background technology
Nonflame bleeder is mainly used in the industries such as grain, metallurgy, chemical industry, electric power, pharmacy, machining, concrete application
On the pipeline that the equipment such as cyclone separator, deduster, dust collector, filtering cartridge filter, Geldart-D particle are connected.
In the prior art, nonflame bleeder is connected on pipeline by the flange of its both sides, its internal fire suppression module
The corrugated plating mainly suppressed by steel plate is constituted.This nonflame bleeder has the disadvantage that：1. flow rate typically can only
30% or so is reached, in the case where not changing pipeline valid circulation area, it is necessary to which the latus rectum of nonflame bleeder is increased 3 times
More than；2. because corrugated plating is formed by steel plate compacting, weight is heavier, adds the overall weight of nonflame bleeder, peace
, it is necessary to bear shear stress using large diameter bolt when on pipeline；3. maintaining difficulty is, it is necessary to the flange of both sides
Nonflame bleeder could be pulled down by taking apart, and maintaining is then carried out again.
The content of the invention
The present invention is in view of the above-mentioned problems, provide a kind of dust nonflame bleeder of high flow rate.
According to technical scheme：A kind of dust nonflame bleeder, including venting of dust explosion plate and venting of dust explosion cavity, it is described to let out
Import and outlet are provided with blast chamber body, the venting of dust explosion plate is connected in the import of the venting of dust explosion cavity, the venting of dust explosion cavity
Exit is provided with flame retardant bed, and the flame retardant bed uses the filter screen of stainless steel；The outlet of the venting of dust explosion cavity is from the side
For sector.
Further, bottom flanged plate is provided with the import of the venting of dust explosion cavity, the venting of dust explosion plate is connected to the bottom method
On blue plate.
Further, it is provided with gasket seal between the venting of dust explosion plate and the bottom flanged plate.
Further, the exit of the venting of dust explosion cavity is provided with outlet(discharge) flange plate, the outlet(discharge) flange plate and is connected with
The pressing plate of the fixed flame retardant bed.
Further, the venting of dust explosion cavity is enclosed and formed by shrouding, foreboard, back plate and two blocks of side plates, the shrouding difference
It is connected with foreboard and two blocks of side plates；Inner panel is fixed with the venting of dust explosion cavity inner wall, the end of the inner panel is formed described in support
The step of flame retardant bed.
Further, the end of the inner panel is provided with interior reinforcement.
Further, it is provided with the back plate on peep hole, the peep hole and is connected with peep hole cover plate.
Further, the outlet(discharge) flange plate includes rear fixed plate and front shoe, and the rear fixed plate is connected to described
In back plate, the front shoe is connected on the shrouding.
Further, the rear fixed plate is integrally formed with the back plate, the front shoe, the shrouding with it is described before
Plate is integrally formed.
Further, signal monitoring device is installed on the venting of dust explosion plate.
The technical effects of the invention are that：1. flame retardant bed, as resistance fire material, improves flow rate using stainless steel filtering net,
The weight of flame retardant bed is reduced, cost is reduced；Flame retardant bed is designed to sector structure, increases discharge area；2. after the present invention
End need not connect venting of dust explosion pipeline, install and convenient disassembly；3. being provided with signal monitoring device on venting of dust explosion plate, venting of dust explosion plate can be monitored in real time
Situation, when venting of dust explosion plate ruptures, can and alarm.
Brief description of the drawings
Fig. 1 is left view of the invention.
Fig. 2 is rearview of the invention.
Fig. 3 is Fig. 1 top view.
In Fig. 1~Fig. 3, including venting of dust explosion plate 1, gasket seal 2, bottom flanged plate 3, back plate 4, peep hole cover plate reinforcement 5, sight
Examine blind patch 6, rear fixed plate 7, pressing plate 8, the first reinforcement of pressing plate 9, the second reinforcement of pressing plate 10, the first reinforcement of side plate 11,
The second reinforcement of side plate 12, flame retardant bed 13, shrouding 14, front shoe 15, foreboard 16, nameplate 17, side plate 18, screw 19, inner panel
20th, interior reinforcement 21, rivet 22.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
As shown in FIG. 1 to 3, the present invention is a kind of dust nonflame bleeder, on pipeline, and it includes venting of dust explosion plate
1 with venting of dust explosion cavity.Import and outlet are provided with venting of dust explosion cavity, the import of venting of dust explosion cavity is connected with pipeline, it exports straight-through big
Gas.Venting of dust explosion plate 1 is connected in the import of venting of dust explosion cavity；The exit of venting of dust explosion cavity is provided with flame retardant bed 13, and flame retardant bed 13 is used
The filter screen of stainless steel, its flow rate can reach 50% or so.
Venting of dust explosion cavity is enclosed and formed by shrouding 14, foreboard 16, back plate 4 and two blocks of side plates 18, shrouding 14 respectively with foreboard 16
And two blocks of side plates 18 are connected.Shrouding 14, foreboard 16, back plate 4 are respectively rectangle, and back plate 4 is higher than foreboard 16.The shape of side plate 18
Shape is rectangle and fan-shaped combining structure, and rectangle is located at the import of venting of dust explosion cavity, and sector is located at the exit of venting of dust explosion cavity, fan
The central angle of shape is right angle.The first reinforcement of side plate 11 and the second reinforcement of side plate 12 are additionally provided with side plate 18, rises and strengthens making
With；The nameplate 17 of the device is also equipped with side plate 18.
The outlet of venting of dust explosion cavity is from the side sector, and flame retardant bed 13 is from the side fan annular.The structure of flame retardant bed 13
Sector structure is designed to, discharge area is increased.
Bottom flanged plate 3 is provided with the import of venting of dust explosion cavity, venting of dust explosion plate 1 is bolted on bottom flanged plate 3.In order to
Strengthen sealing property, gasket seal 2 is additionally provided between venting of dust explosion plate 1 and bottom flanged plate 3.
The exit of venting of dust explosion cavity is provided with the pressure that fixed flame retardant bed 13 is connected with outlet(discharge) flange plate, 3 outlet(discharge) flange plates
Plate 8.The first reinforcement of pressing plate 9 and the second reinforcement of pressing plate 10 are additionally provided with pressing plate 8, booster action is played.
Inner panel 20 is fixed with venting of dust explosion cavity inner wall, the end of inner panel 20 forms the step of support flame retardant bed 13.Inner panel 20
End be provided with interior reinforcement 21.Interior reinforcement 21 is riveted with inner panel 20 with rivet 22.
Also it is provided with back plate 4 on peep hole, peep hole and peep hole cover plate 6 is connected with by screw 19.On peep hole cover plate 6
It is additionally provided with peep hole cover plate reinforcement 5.When needing to check whether venting of dust explosion plate 1 destroys, it is not necessary to nonflame bleeder from
Pulled down on pipeline, it is only necessary to back out screw 19, pulling down peep hole cover plate 6 can just observe.
Outlet(discharge) flange plate includes rear fixed plate 7 and front shoe 15, and rear fixed plate 7 is connected in back plate 4, front shoe 15
It is connected on shrouding 14.Rear fixed plate 7 can be welded in back plate 4 or is integrally formed with back plate 4, by the folding of back plate 4
While forming.Front shoe 15, shrouding 14 and foreboard 16 can be respectively welded together with or be integrally formed by flanging
It is made.When being integrally formed using flanging, welding procedure, the insecure risk of reduction welding can be reduced.
Signal monitoring device is also equipped with venting of dust explosion plate 1, so as to realize real-time monitoring.
The operation principle of the present invention is as follows：When dust explosion occurs for the equipment such as deduster or dust collector, equipment
Interior pressure rise, now shock wave and flame the venting of dust explosion plate 1 positioned at nonflame bleeder foremost is delivered to by pipeline, due to
Pressure in pressure pipeline has exceeded the Opening pressure of venting of dust explosion plate 1, and venting of dust explosion plate 1 ruptures, and shock wave and flame pass through venting of dust explosion
The flame retardant bed 13 of nonflame bleeder is reached after plate 1, impact air-flow passes through the flame retardant bed 13 of device, under manifold pressure is rapid
Drop, and imperfect combustion dust is stopped by flame retardant bed 13, flame is rapid by stainless steel filtering net when through flame retardant bed 13
Cooling, and because wall effect, flame are prevented by flame retardant bed 13, it is not transferred to the outside of nonflame bleeder.
The present invention compared with prior art, with advantages below：
1. flame retardant bed improves flow rate, adopted compared to tradition using stainless steel filtering net as resistance fire material in the present invention
With the flame retardant bed of corrugated board structures, the weight of flame retardant bed is greatly reduced, cost is also reduced；Flame retardant bed is designed to fan-shaped knot
Structure, increases discharge area；There is provided perfect protection in the present invention for surrounding environment, no matter flame, dust or shock wave all without
Escaped from pipeline；
2. rear end of the present invention need not connect venting of dust explosion pipeline, install and convenient disassembly.It may be used at unusable ventilation shaft
In equipment, it is not required that extra maintenance cost, can from it is outside just can from device running situation；
3. signal monitoring device is installed in venting of dust explosion plate, in real time monitoring venting of dust explosion plate situation, when venting of dust explosion plate ruptures, and Times
It is alert.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in art
Personnel are it should be understood that what the description in embodiment was merely exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change should all belong to protection scope of the present invention.Scope of the present invention is by described power
What sharp claim was defined, rather than limited by the foregoing description in embodiment.
Claims (10)
1. a kind of dust nonflame bleeder, including venting of dust explosion plate (1) and venting of dust explosion cavity, be provided with the venting of dust explosion cavity import with
Outlet, the venting of dust explosion plate (1) is connected in the import of the venting of dust explosion cavity, it is characterized in that：The exit peace of the venting of dust explosion cavity
Equipped with flame retardant bed (13), the flame retardant bed (13) uses the filter screen of stainless steel；The outlet of the venting of dust explosion cavity is from the side
For sector.
2. according to the dust nonflame bleeder described in claim 1, it is characterized in that：It is provided with the import of the venting of dust explosion cavity
Bottom flanged plate (3), the venting of dust explosion plate (1) is connected on the bottom flanged plate (3).
3. according to the dust nonflame bleeder described in claim 2, it is characterized in that：The venting of dust explosion plate (1) and the bottom flange
Gasket seal (2) is provided between plate (3).
4. according to the dust nonflame bleeder described in claim 1, it is characterized in that：The exit of the venting of dust explosion cavity is provided with
The pressing plate (8) of the fixed flame retardant bed (13) is connected with outlet(discharge) flange plate, (3) the outlet(discharge) flange plate.
5. according to the dust nonflame bleeder described in claim 4, it is characterized in that：The venting of dust explosion cavity is by shrouding (14), preceding
Plate (16), back plate (4) and two pieces of side plates (18) enclose and formed, the shrouding (14) respectively with foreboard (16) and two pieces of side plates (18)
It is connected；Inner panel (20) is fixed with the venting of dust explosion cavity inner wall, the end of the inner panel (20) forms the support flame retardant bed
(13) step.
6. according to the dust nonflame bleeder described in claim 5, it is characterized in that：In the end of the inner panel (20) is provided with
Reinforcement (21).
7. according to the dust nonflame bleeder described in claim 5, it is characterized in that：Peep hole is provided with the back plate (4), institute
State and peep hole cover plate (6) is connected with peep hole.
8. according to the dust nonflame bleeder described in claim 5, it is characterized in that：The outlet(discharge) flange plate includes rear fixed plate
(7) with front shoe (15), the rear fixed plate (7) is connected in the back plate (4), and the front shoe (15) is connected to institute
State on shrouding (14).
9. according to the dust nonflame bleeder described in claim 5, it is characterized in that：The rear fixed plate (7) and the back plate
(4) it is integrally formed, the front shoe (15), the shrouding (14) and the foreboard (16) are integrally formed.
10. according to the dust nonflame bleeder described in claim 1, it is characterized in that：Signal is installed on the venting of dust explosion plate (1)
Monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589180.5A CN107314140A (en) | 2017-07-19 | 2017-07-19 | Dust nonflame bleeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589180.5A CN107314140A (en) | 2017-07-19 | 2017-07-19 | Dust nonflame bleeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107314140A true CN107314140A (en) | 2017-11-03 |
Family
ID=60178763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589180.5A Pending CN107314140A (en) | 2017-07-19 | 2017-07-19 | Dust nonflame bleeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107314140A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957187A (en) * | 2017-11-20 | 2018-04-24 | 吴江天吴特种安全阀有限公司 | A kind of powder drying machine leaking explosion device |
| CN107998540A (en) * | 2017-12-05 | 2018-05-08 | 大连理工大学 | A kind of reusable datonation-inhibition pressure relief device |
| CN108930825A (en) * | 2018-08-01 | 2018-12-04 | 东北大学 | Without flame pressure relief device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988367A (en) * | 2009-07-30 | 2011-03-23 | 李宝龄 | Reusable automatic pressure relief device |
| CN203585467U (en) * | 2013-12-04 | 2014-05-07 | 乌鲁木齐中亿丰节能环保科技有限公司 | Anti-explosion pressure relief device |
| CN206334238U (en) * | 2016-12-30 | 2017-07-18 | 吴江天吴特种安全阀有限公司 | Dust nonflame spark arrester |
| CN207049386U (en) * | 2017-07-19 | 2018-02-27 | 江苏爵格工业设备有限公司 | Dust nonflame bleeder |
-
2017
- 2017-07-19 CN CN201710589180.5A patent/CN107314140A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988367A (en) * | 2009-07-30 | 2011-03-23 | 李宝龄 | Reusable automatic pressure relief device |
| CN203585467U (en) * | 2013-12-04 | 2014-05-07 | 乌鲁木齐中亿丰节能环保科技有限公司 | Anti-explosion pressure relief device |
| CN206334238U (en) * | 2016-12-30 | 2017-07-18 | 吴江天吴特种安全阀有限公司 | Dust nonflame spark arrester |
| CN207049386U (en) * | 2017-07-19 | 2018-02-27 | 江苏爵格工业设备有限公司 | Dust nonflame bleeder |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957187A (en) * | 2017-11-20 | 2018-04-24 | 吴江天吴特种安全阀有限公司 | A kind of powder drying machine leaking explosion device |
| CN107998540A (en) * | 2017-12-05 | 2018-05-08 | 大连理工大学 | A kind of reusable datonation-inhibition pressure relief device |
| CN107998540B (en) * | 2017-12-05 | 2020-04-14 | 大连理工大学 | Reusable explosion suppression and pressure relief device |
| CN108930825A (en) * | 2018-08-01 | 2018-12-04 | 东北大学 | Without flame pressure relief device |
| CN108930825B (en) * | 2018-08-01 | 2019-07-02 | 东北大学 | Without flame pressure relief device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207049395U (en) | High flow rate fire resistant overflows nonflame bleeder | |
| CN107314140A (en) | Dust nonflame bleeder | |
| CN207049386U (en) | Dust nonflame bleeder | |
| CN107120046A (en) | Air inlet louvers and container-type power generation box for container-type power generation box | |
| CN110566924B (en) | Explosion-proof door of waste heat boiler and waste heat boiler | |
| CN206742712U (en) | Electric distribution cabinet | |
| CN207545663U (en) | A kind of cylindrical shape nonflame explosion venting device | |
| CN207715845U (en) | A kind of multi-cavity dust nonflame bleeder | |
| CN117329311A (en) | Fire control is with fire prevention valve | |
| CN102553108B (en) | Orifice-plate spark particle obstructing device | |
| CN211117838U (en) | Explosion-proof valve device with pressure release protection structure | |
| CN102954262A (en) | Deflagration overpressure relief device with wave adsorption and flame suppression functions | |
| CN107816594A (en) | A kind of nonflame bleeder of continuous use | |
| CN110389152A (en) | A kind of dust explosion simulating test device and its operating method | |
| CN207455838U (en) | A kind of door socket forced draft device | |
| CN210831914U (en) | Explosion-proof door of waste heat boiler and waste heat boiler | |
| CN216896060U (en) | Explosion-proof electromagnetic valve with alarming function | |
| CN109078789A (en) | A kind of automotive lacquer room over-sprayed paint fog processing unit | |
| CN107781472A (en) | It is a kind of for ease of maintenaince and can nonexpondable nonflame bleeder | |
| CN212839604U (en) | Efficient and monitorable dust flameless explosion venting device | |
| CN208169803U (en) | A kind of reusable nonflame bleeder | |
| CN110986128B (en) | Marine kitchen exhaust device | |
| CN209561512U (en) | A kind of new energy battery case with venting of dust explosion function | |
| CN104801083A (en) | Filter cake blowing apparatus of filter press | |
| CN106621588A (en) | Treatment apparatus and treatment process of dust-bearing organic waste gas |
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 | ||
| CB02 | Change of applicant information |
Address after: 224100 Jiangsu Yancheng City Dafeng Economic Development Zone South of pump valve industrial park Applicant after: JIANGSU DRAGON INDUSTRIAL EQUIPMENT Co.,Ltd. Address before: 224100 Jiangsu Yancheng City Dafeng Economic Development Zone, south of pump valve industrial park. Applicant before: JIANGSU DRAGON INDUSTRIAL EQUIPMENT Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 224000 Xikang Road, Dafeng Economic Development Zone, Yancheng City, Jiangsu Province Applicant after: Jiangsu juege Industry Group Co.,Ltd. Address before: 224100 Jiangsu Yancheng City Dafeng Economic Development Zone South of pump valve industrial park Applicant before: JIANGSU DRAGON INDUSTRIAL EQUIPMENT Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171103 |
|
| RJ01 | Rejection of invention patent application after publication |