CN111744306A - Ventilation equipment for accident oil collecting tank of transformer substation - Google Patents
Ventilation equipment for accident oil collecting tank of transformer substation Download PDFInfo
- Publication number
- CN111744306A CN111744306A CN202010740099.4A CN202010740099A CN111744306A CN 111744306 A CN111744306 A CN 111744306A CN 202010740099 A CN202010740099 A CN 202010740099A CN 111744306 A CN111744306 A CN 111744306A
- Authority
- CN
- China
- Prior art keywords
- dust removal
- monitoring unit
- ring
- aerator
- monitoring
- 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
- 238000009423 ventilation Methods 0.000 title claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims abstract description 50
- 238000001179 sorption measurement Methods 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 8
- 244000309464 bull Species 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000010248 power generation Methods 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims 9
- 238000010586 diagram Methods 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of accident oil sumps of transformer substations, and provides ventilation equipment for the accident oil sumps of the transformer substations. According to the ventilation device for the accident oil collecting pool of the transformer substation, the concentration of the exhaust gas and oil molecules in the exhaust gas can be monitored through the monitoring unit and the dust removing mechanism respectively, on one hand, the exhaust gas is monitored, on the other hand, the exhaust gas is purified, and the ventilation device is environment-friendly.
Description
Technical Field
The invention relates to the technical field of accident oil sumps of transformer substations, in particular to a ventilating device for an accident oil sump of a transformer substation.
Background
The accident oil collecting pool of the transformer substation has the function of preventing the accident from being enlarged due to fire disasters and the like caused by the leakage of oil after main transformers and other oil-filled electrical equipment are damaged. When an accident occurs, oil flows into the accident oil collecting pool, and air in the accident oil collecting pool is exhausted while the oil flows into the accident oil collecting pool, so that a ventilation device is required to be installed at the top of the accident oil collecting pool. The traditional ventilation device adopts a common vent pipe, the top of the vent pipe is in a hook shape, the vent pipe is exposed outside, rainwater easily corrodes the vent pipe, small animals and foreign matters easily enter the vent pipe to cause blockage of the vent pipe, and oil in the oil pool is easily polluted. In addition, with the progress of society, people pay more and more attention to the monitoring of the exhaust gas, and the ventilation device with single function cannot meet the requirements of people.
Disclosure of Invention
The invention aims to provide a ventilating device for a substation accident oil collecting pool, which can solve at least part of defects in the prior art.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions: the utility model provides a ventilation equipment for transformer substation accident oil collecting tank, includes that one end can extend the outlet duct in the underground accident oil collecting tank, still including the monitoring unit that is arranged in monitoring exhaust gas's concentration and be arranged in the dust removal mechanism of the oil molecule of excluded gas, the other one end of outlet duct extends in the monitoring unit, the monitoring unit with the butt joint of dust removal mechanism, dust removal mechanism keeps away from one side of monitoring unit is equipped with the gas outgoing's that supplies to clear away the back passageway.
Further, the monitoring unit includes the monitoring cavity and locates concentration detector in the monitoring cavity, the one end that underground accident oil collecting tank was kept away from to the outlet duct through the inlet duct mouth with the monitoring cavity intercommunication.
Furthermore, the monitoring unit also comprises an LED display used for displaying the value detected by the concentration detector and an alarm used for giving an alarm after the detected value is larger than a preset value.
Further, dust removal mechanism include one end with the barrel of monitoring unit intercommunication, follow bull stick, the cover that the center pin of barrel was laid establish adsorb dust removal ring on the bull stick and be used for ordering about the bull stick rotates in order to drive adsorb dust removal ring rotates the rocker that adsorbs the oil molecule, adsorb dust removal ring partition the barrel is two cavities, and one of them cavity is close to the monitoring unit, and another cavity is close to the passageway, be equipped with the opening on the barrel, the opening with the passageway intercommunication.
Furthermore, the adsorption dust removal ring comprises an outer ring, an inner ring for inserting the rotating rod and a plurality of metal rods for uniformly dividing a ring body between the outer ring and the inner ring into a plurality of petal-shaped fan-shaped structures, every two adjacent metal rods form a petal-shaped fan-shaped structure, and in each fan-shaped structure, at least one petal is filled with adsorption cotton in the fan-shaped structure.
Furthermore, the quantity of adsorbing dust removal ring has a plurality ofly, and all overlaps and establish on the bull stick, each adsorb dust removal ring equal parallel arrangement.
Furthermore, a first bevel gear which can be driven to rotate by a driving piece is sleeved on the rotating rod.
Further, the dust removal device also comprises a wind power transmission mechanism for providing power for the dust removal mechanism.
Further, the solar power generation mechanism is used for providing electric energy.
Further, still include the elevating system who is used for driving monitor cell and dust removal mechanism goes up and down.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides a breather for transformer substation accident oil collecting tank, can monitor exhaust gas's concentration and the oil molecule in the exhaust gas respectively through monitoring unit and dust removal mechanism, has monitored exhaust gas on the one hand, and exhaust gas has purified on the other hand, and is friendly to the environment.
Drawings
Fig. 1 is a schematic diagram of a ventilation device for a substation accident oil sump according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a dust removing mechanism of a ventilating device for a substation accident oil collecting pool according to an embodiment of the invention;
fig. 3 is a schematic diagram of an adsorption dust removal ring of a ventilating device for a substation accident oil collecting pool according to an embodiment of the invention;
fig. 4 is a schematic view of a wind power transmission mechanism of a ventilating device for a substation accident oil collecting pool according to an embodiment of the invention;
fig. 5 is a control schematic diagram of a ventilator for a substation accident oil sump according to an embodiment of the present invention;
in the reference symbols: 1-a lower box body, 2-an air inlet pipe orifice, 3-an air outlet pipe, 4-a lifting rod, 5-a bottom plate, 6-a ground pin, 7-an upper box body, 8-a channel, 9-a dust removal mechanism, 10-a partition plate, 11-a storage battery, 12-an air outlet, 13-an LED display, 14-a controller, 15-an alarm, 16-a vertical frame, 17-an inclined frame, 18-a photovoltaic panel, 19-a concentration detector, 20-a wind power transmission mechanism, 91-a barrel body, 92-an opening, 93-a rotating rod, 94-an adsorption dust removal ring, 95-a rocker, 96-a first bevel gear, 941-an inner ring, 942-an outer ring, 943-a metal rod, 944-adsorption cotton, 201-a vertical rod, 202-a cross rod and 203-a bowl-shaped fan blade, 204-second bevel gear, 205-mounting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a ventilation apparatus for a substation accident oil collecting tank, including an air outlet pipe 3 having one end capable of extending into an underground accident oil collecting tank, a monitoring unit for monitoring the concentration of an exhaust gas, and a dust removing mechanism 9 for removing oil molecules in the gas, where the other end of the air outlet pipe 3 extends into the monitoring unit, the monitoring unit is in butt joint with the dust removing mechanism 9, and a side of the dust removing mechanism 9 away from the monitoring unit is provided with a channel 8 for discharging the removed gas. In this embodiment, the concentration of the exhaust gas and the oil molecules in the exhaust gas can be monitored by the monitoring unit and the dust removing mechanism 9, respectively, so that the exhaust gas is monitored on one hand, and the exhaust gas is purified on the other hand, which is environment-friendly. Specifically, the lower end of the gas outlet pipe 3 extends into an underground accident oil collecting tank, gas discharged from the tank enters a monitoring unit through the gas outlet pipe 3, the monitoring unit monitors the concentration of the gas, then the gas is led to the dust removal mechanism 9 from the monitoring unit, the gas is purified in the dust removal mechanism 9, oil molecules are removed, and the purified gas can be discharged from the device through the channel 8. In fact, after the gas passes through the links, the tightness of the gas is obviously better than that of the existing gas passing through only one vent pipe, and small animals and foreign matters can be prevented from entering the vent pipe to block the vent pipe and pollute an oil pool.
Referring to fig. 1 as an optimized scheme of the embodiment of the present invention, the monitoring unit includes a monitoring chamber and a concentration detector 19 disposed in the monitoring chamber, and one end of the gas outlet pipe 3, which is far away from the underground accident oil collecting tank, is communicated with the monitoring chamber through a gas inlet pipe orifice 2. In this embodiment, the monitoring is performed by using a concentration detector 19, and after the gas enters the monitoring chamber, the concentration detector 19 therein can detect the gas concentration. In addition, the monitoring unit also comprises an LED display 13 for displaying the value detected by the concentration detector 19 and an alarm 15 for alarming after the detected value is larger than a preset value. In this embodiment, the LED display 13 may be used to display the monitored concentration value, and if the monitored concentration value exceeds the preset value, the alarm 15 may be used to alarm to prompt the operator.
As an optimized scheme of the embodiment of the present invention, please refer to fig. 1, fig. 2, and fig. 3, the dust removing mechanism 9 includes a cylinder 91 having one end communicated with the monitoring unit, a rotating rod 93 disposed along a central axis of the cylinder 91, an adsorption dust removing ring 94 sleeved on the rotating rod 93, and a rocker 95 for driving the rotating rod 93 to rotate so as to drive the adsorption dust removing ring 94 to adsorb oil molecules, the adsorption dust removing ring 94 divides the cylinder 91 into two chambers, one chamber is close to the monitoring unit, the other chamber is close to the channel 8, an opening 92 is disposed on the cylinder 91, and the opening 92 is communicated with the channel 8. In this embodiment, the dust removing mode is the adsorption dust removing ring 94, and the adsorption dust removing ring 94 rotates by using the rotating rod 93, and the adsorption dust removing is performed in the rotating process. The rotation of the rotating rod 93 can be manually rotated by a rocker 95 or driven by a driving member, and a first bevel gear 96 sleeved on the rotating rod 93 is matched with the driving member. The drive member may be a wind driven mechanism 20, the embodiments of which are described in more detail below.
In order to further optimize the above solution, referring to fig. 1, fig. 2 and fig. 3, the adsorption dust removal ring 94 includes an outer ring 942, an inner ring 941 for inserting the rotation rod 93, and a plurality of metal rods 943 for uniformly dividing a ring body between the outer ring 942 and the inner ring 941 into a plurality of petal-shaped fan structures, two adjacent metal rods 943 form a petal-shaped fan structure, and in each fan structure, at least one petal of the fan structures is filled with adsorption cotton 944. In this embodiment, the adsorption dust removal ring 94 may be composed of an inner ring 941, an outer ring 942, and a plurality of metal rods 943, and the whole structure is a fan-shaped structure that divides a circle into a plurality of lobes, and the form of filling the adsorption cotton 944 in the fan-shaped structure can effectively adsorb oil molecules. As shown in fig. 3, the circle is divided into fourteen lobes in total, seven of which are filled with absorbent cotton 944 and the other seven are not filled. Of course, each fan-shaped structure may be filled with the absorbent cotton 944, or some fan-shaped structures may be filled with less absorbent cotton 944, which may be selected according to actual situations.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1, fig. 2 and fig. 3, a plurality of adsorbing and dust removing rings 94 are provided, and are all sleeved on the rotating rod 93, and all the adsorbing and dust removing rings 94 are all arranged in parallel. In this embodiment, there may be a plurality of adsorbing dust-removing rings 94, for example, six adsorbing dust-removing rings as shown in fig. 2, which are spaced apart from each other, so as to achieve a better purifying effect.
Referring to fig. 1 and 4 as an optimized solution of the embodiment of the present invention, the ventilation device further includes a wind power transmission mechanism 20 for providing power to the dust removing mechanism 9. In this embodiment, the rotation of the rotating rod 93 of the dust removing mechanism 9 may be driven manually or by the wind power transmission mechanism 20. Preferably, the wind power transmission mechanism 20 includes a vertical rod 201, a cross rod 202 disposed on the vertical rod 201, and bowl-shaped blades 203 disposed at two ends of the cross rod 202, the vertical rod 201 can be driven by the two bowl-shaped blades 203 to rotate so as to drive a second bevel gear 204 at a bottom end of the vertical rod to rotate, and the second bevel gear 204 is engaged with the first bevel gear 96, so as to drive the rotating rod 93 to rotate.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1, the ventilation device further includes a solar power generation mechanism for providing electric energy. In this embodiment, power can be supplied to the power consumption elements in the device through the solar power generation mechanism. Specifically, the solar power generation mechanism comprises a vertical frame 16, an inclined frame 17 installed on the vertical frame 16, and a photovoltaic panel 18 arranged on the inclined frame 17. Preferably, the photovoltaic panel 18 is electrically connected with the storage battery 11 through the charge-discharge controller 14, and the storage battery 11, the LED display 13, the alarm 15 and the concentration detector 19 are all electrically connected with the controller 14. The electric energy generated by the photovoltaic panel 18 is fed to the accumulator 11 for storage and then supplied by the accumulator 11, although the photovoltaic panel 18 can also be directly supplied.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1, the ventilation device further includes a lifting mechanism for driving the monitoring unit and the dust removing mechanism 9 to lift. In this embodiment, the monitoring unit and the dust removing mechanism 9 can be lifted or lowered by the lifting mechanism, so as to adjust the insertion depth of the air outlet pipe 3. Specifically, the lifting mechanism comprises a lifting rod 4, the lifting rod 4 is installed on a bottom plate 5, and the bottom plate 5 is installed on the oil collecting pool through a ground pin 6. The lifting of the lifting rod 4 can drive the monitoring unit and the dust removing mechanism 9 to lift.
In the overall layout, as shown in fig. 1, the monitoring unit and the dust removing mechanism 9 can be located in the lower case 1, the upper case 7 is arranged above the lower case 1, the storage battery 11 can be arranged in the upper case 7, and the upper case 7 and the lower case 1 are communicated by the opening 92 and the channel 8, so that the gas purified by the dust removing mechanism 9 can smoothly enter the upper case 7. The vertical rod 201 is mounted on the upper box 7 through a mounting plate 205. preferably, the mounting plate 205 has two layers, and each layer has a through hole for the vertical rod 201 to pass through and rotate with. Preferably, the upper case 7 is provided with a partition 10 which can be divided into two chambers, one of which contains the battery 11 and the other of which communicates with the lower case 1. Preferably, an air outlet 12 is formed on the outer wall of the chamber where the upper tank 7 is communicated with the lower tank 1, so that the air can be conveniently discharged. Preferably, a dust screen is provided in the air outlet 12 to prevent impurities or small animals from entering the device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a ventilation equipment for transformer substation accident oil sump, includes that one end can extend the outlet duct in the secret accident oil sump, its characterized in that: still including the monitoring unit that is arranged in monitoring exhaust gas's concentration and be arranged in the dust removal mechanism of the oil molecule of excluded gas, the other one end of outlet duct extends in the monitoring unit, the monitoring unit with dust removal mechanism docks, dust removal mechanism keeps away from one side of monitoring unit is equipped with the gas outgoing's that supplies to clear away the back passageway.
2. The aerator of claim 1, wherein: the monitoring unit comprises a monitoring chamber and a concentration detector arranged in the monitoring chamber, and one end, far away from the underground accident oil collecting pool, of the air outlet pipe is communicated with the monitoring chamber through an air inlet pipe orifice.
3. An aerator for substation accident sumps according to claim 2, characterised in that: the monitoring unit also comprises an LED display used for displaying the value detected by the concentration detector and an alarm used for giving an alarm after the detected value is larger than a preset value.
4. The aerator of claim 1, wherein: dust removal mechanism include one end with the barrel of monitoring unit intercommunication, follow bull stick, the cover that the center pin of barrel was laid establish adsorb dust removal ring on the bull stick and be used for ordering about the bull stick rotates in order to drive adsorb dust removal ring rotates the rocker that adsorbs the oil molecule, adsorb dust removal ring and separate the barrel is two cavities, and one of them cavity is close to the monitoring unit, another cavity is close to the passageway, be equipped with the opening on the barrel, the opening with the passageway intercommunication.
5. The aerator of claim 4, wherein: the adsorption dust removal ring comprises an outer ring, an inner ring for inserting the rotary rod and a plurality of metal rods for uniformly separating a ring body between the outer ring and the inner ring into a plurality of petal-shaped fan-shaped structures, wherein two adjacent metal rods form a petal-shaped fan-shaped structure, and in each fan-shaped structure, at least one petal is filled with adsorption cotton.
6. The aerator of claim 4, wherein: the quantity of adsorbing the dust removal ring has a plurality ofly, and all overlaps and establish on the bull stick, each adsorb dust removal ring equal parallel arrangement.
7. The aerator of claim 4, wherein: the rotating rod is sleeved with a first bevel gear which can be driven to rotate by a driving piece.
8. The aerator of claim 1, wherein: the dust removal device also comprises a wind power transmission mechanism for providing power for the dust removal mechanism.
9. The aerator of claim 1, wherein: and the solar power generation mechanism is used for providing electric energy.
10. The aerator of claim 1, wherein: the dust removal device also comprises a lifting mechanism used for driving the monitoring unit and the dust removal mechanism to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740099.4A CN111744306A (en) | 2020-07-28 | 2020-07-28 | Ventilation equipment for accident oil collecting tank of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010740099.4A CN111744306A (en) | 2020-07-28 | 2020-07-28 | Ventilation equipment for accident oil collecting tank of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111744306A true CN111744306A (en) | 2020-10-09 |
Family
ID=72712202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010740099.4A Pending CN111744306A (en) | 2020-07-28 | 2020-07-28 | Ventilation equipment for accident oil collecting tank of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111744306A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201737371U (en) * | 2010-06-29 | 2011-02-09 | 中国石油天然气集团公司 | Oil-gas recovering device of oil tank |
| KR20120133846A (en) * | 2011-06-01 | 2012-12-11 | 한국에너지기술연구원 | Rotary VOC Concentrator using Pellet Adsorbent |
| CN206483176U (en) * | 2017-02-24 | 2017-09-12 | 韩志军 | Horizontal runner VOCs adsorptive purifiers |
| CN211033759U (en) * | 2019-10-22 | 2020-07-17 | 那慧玲 | Oil-gas safety device of floating-roof oil tank |
| CN212369817U (en) * | 2020-07-28 | 2021-01-19 | 国家电网有限公司 | Ventilation equipment for accident oil collecting tank of transformer substation |
-
2020
- 2020-07-28 CN CN202010740099.4A patent/CN111744306A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201737371U (en) * | 2010-06-29 | 2011-02-09 | 中国石油天然气集团公司 | Oil-gas recovering device of oil tank |
| KR20120133846A (en) * | 2011-06-01 | 2012-12-11 | 한국에너지기술연구원 | Rotary VOC Concentrator using Pellet Adsorbent |
| CN206483176U (en) * | 2017-02-24 | 2017-09-12 | 韩志军 | Horizontal runner VOCs adsorptive purifiers |
| CN211033759U (en) * | 2019-10-22 | 2020-07-17 | 那慧玲 | Oil-gas safety device of floating-roof oil tank |
| CN212369817U (en) * | 2020-07-28 | 2021-01-19 | 国家电网有限公司 | Ventilation equipment for accident oil collecting tank of transformer substation |
Non-Patent Citations (1)
| Title |
|---|
| 中国计划出版社: "《消防技术标准桂芬汇编 下册》", 30 April 2015, 中国计划出版社, pages: 47 - 20 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212369817U (en) | Ventilation equipment for accident oil collecting tank of transformer substation | |
| CN211612090U (en) | Dust collector for building | |
| CN111744306A (en) | Ventilation equipment for accident oil collecting tank of transformer substation | |
| CN111870062A (en) | Thin oxygen storage device for metal cultural relic restoration protection | |
| CN215609660U (en) | Deodorizing device for wastewater treatment | |
| CN214994550U (en) | Integration sewage promotes pump station | |
| CN207165372U (en) | A kind of segment type transformer breather based on fast interface | |
| CN210340340U (en) | Structure of carbon-supported purification combustion tower | |
| CN212119482U (en) | Tail gas adsorption tower for industrial production | |
| CN214039623U (en) | Yellow phosphorus slag water quenching steam collecting and discharging system | |
| CN210490208U (en) | Block terminal for electrical engineering | |
| CN215009223U (en) | Mine ten thousand million industrial ring network devices in pit convenient to installation | |
| CN217627847U (en) | Environment-friendly waste water recovery equipment | |
| CN216744573U (en) | Drainage and exhaust device for heating radiator | |
| CN211320605U (en) | Power distribution cabinet with water flow guiding structure | |
| CN210165516U (en) | Medical treatment building ventilation unit | |
| CN215346044U (en) | Movable tree pool | |
| CN213590103U (en) | Tail gas absorption device | |
| CN213610691U (en) | Take tertiary filter of pressure differential instruction | |
| CN216507942U (en) | Orderly charging type direct current charger | |
| CN216922188U (en) | Mine ventilation detection device | |
| CN213391531U (en) | Safety isolation board | |
| CN213511979U (en) | Reducer protection device for open coal mine coal conveying system | |
| CN216223410U (en) | Baking waste gas collecting device for positive and negative electrode coating machine | |
| CN216572277U (en) | Dust removal device for recovery processing of waste lead-acid storage battery |
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 |