CN110530014A - Gas water heater heated by radiation - Google Patents
Gas water heater heated by radiation Download PDFInfo
- Publication number
- CN110530014A CN110530014A CN201910745840.3A CN201910745840A CN110530014A CN 110530014 A CN110530014 A CN 110530014A CN 201910745840 A CN201910745840 A CN 201910745840A CN 110530014 A CN110530014 A CN 110530014A
- Authority
- CN
- China
- Prior art keywords
- gas
- radiation
- shell
- burner
- nozzle
- 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
- 230000005855 radiation Effects 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000012546 transfer Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 55
- 239000000567 combustion gas Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Abstract
The invention discloses a radiation heating gas water heater which comprises a shell, a gas radiation pipe, a radiation heat exchanger and a burner, wherein a radiation heat exchange cavity is formed in the shell, the gas radiation pipe is arranged in the radiation heat exchange cavity, the radiation heat exchanger is wound on the periphery of the gas radiation pipe, a cold water inlet and a hot water outlet are respectively formed at two ends of the radiation heat exchanger, a combustion cavity is formed in the gas radiation pipe, the burner is arranged on the gas radiation pipe, and gas sprayed out by the burner is combusted in the combustion cavity. The structure is simple, and the heat exchange efficiency of the water heater can be further improved.
Description
Technical field
The present invention relates to field of home appliance technology more particularly to a kind of gas heaters of radiant heating.
Background technique
Gas heater is a kind of combustion gas as fuel, and the equipment of hot water is quickly prepared by fuel gas buring.The relevant technologies
In, most of gas heater is to generate the flue gas of high temperature by fuel gas buring, and high-temperature flue gas passes through changing in heat exchanger
Hot fin carries out heat convection, to generate hot water.
Most of gas heater is due to using heat convection, so that the processing of burner and heat exchanger is more
Complexity, and combustion chamber and heat exchanger chamber are to belong to a cavity, combustion product is easy to produce acid condensed water to drip to burning
In device, and then burner is corroded.
Summary of the invention
The present invention is directed to one of solve the problems, such as present in existing the relevant technologies at least to a certain extent, for this purpose, this hair
A kind of bright gas heater for proposing radiant heating, structure is simple, can further improve the heat exchange efficiency of water heater.
Above-mentioned purpose is achieved by the following technical solution:
A kind of gas heater of radiant heating, including shell, gas fired radiant tubes, radiation recuperator and burner, wherein
Radiation heat transfer chamber is formed in the shell, the gas fired radiant tubes are set to inside the radiation heat transfer chamber, and the radiation is changed
Hot device is wound on the periphery of the gas fired radiant tubes, is respectively formed cooling water inlet and hot water at the radiation recuperator both ends
Outlet, forms combustion chamber, the burner is set on the gas fired radiant tubes, the burner in the gas fired radiant tubes
The combustion gas of ejection is burnt in the combustion chamber.
In some embodiments, the burner includes shell and nozzle, wherein the shell has inner cavity, described
Air inlet channel in communication with the inner cavity is offered on shell, the nozzle is set to inside the inner cavity, the nozzle
Air inlet be used to be connected with external air supply channel, the puff prot of the nozzle is extend into the gas fired radiant tubes.
In some embodiments, be provided on the side wall of the nozzle be connected to the air inlet channel it is primary
Air intake.
In some embodiments, auxiliary air entrance is offered on the housing to be used for the inner cavity and the combustion
Chamber connection is burnt, the nozzle is extend into inside the combustion chamber after passing through the auxiliary air entrance.
In some embodiments, the burner further includes blower, and the blower is set to the air inlet channel
On.
In some embodiments, peripheral in the shape of a spiral winding of the radiation recuperator in the gas fired radiant tubes.
In some embodiments, exhaust pipe is provided on the gas fired radiant tubes for that will give up in the combustion chamber
Gas discharges outward.
In some embodiments, diversion pipe is provided between the exhaust pipe and the gas fired radiant tubes, it is described to lead
Flow tube is gradually to narrow along the direction that the gas flows.
In some embodiments, the inner wall of the shell is radiation reflective face.
Compared with prior art, of the invention to include at least the following beneficial effects:
1. gas heater of the invention, structure is simple, can further improve the heat exchange efficiency of water heater.
2. it is designed rationally, water heater can effectively avoid generation acid condensate water in carrying out heat transfer process, thus into one
Step guarantees the runnability of burner.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gas heater in the embodiment of the present invention；
Fig. 2 is the partial structure diagram of gas heater in the embodiment of the present invention；
Fig. 3 is the sectional view of gas heater in the embodiment of the present invention.
Specific embodiment
The present invention will be described for following embodiment, but the present invention is not limited to these examples system.To of the invention
Specific embodiment is modified or some technical features can be equivalently replaced, without departing from the spirit of the present invention program,
It should all cover within the scope of the technical scheme claimed by the invention.
As shown in Figures 1 to 3, the present embodiment provides a kind of gas heaters of radiant heating, including shell 1, gas-fired radiation
Pipe 2, radiation recuperator 3 and burner 4, wherein forming radiation heat transfer chamber 11 in shell 1, gas fired radiant tubes 2 are set to radiation
11 the inside of heat exchanging chamber, radiation recuperator 3 are wound on the periphery of gas fired radiant tubes 2, are respectively formed at 3 both ends of radiation recuperator
Cooling water inlet 31 and hot water outlet 32, form combustion chamber 21 in gas fired radiant tubes 2, and burner 4 is set to gas fired radiant tubes 2
On, the combustion gas that burner 4 sprays is burnt in combustion chamber 21.
In the present embodiment, gas heater passes through the progress independent burning of combustion chamber 21 added to gas fired radiant tubes 2
It is heated, so that gas fired radiant tubes 2 be made to become the radiator of high temperature, the heat of gas fired radiant tubes 2 spoke in the form of radiation energy
It is incident upon on the radiation recuperator 3 for being wound around its surrounding, so by the heat of the cold water of 3 the inside of radiation recuperator and gas fired radiant tubes 2
It exchanges heat between amount, to generate hot water, its structure of gas heater is simple, can further improve the heat exchange effect of water heater
Rate.
Further, burner 4 includes shell 5 and nozzle 6, and wherein shell 5 has inner cavity 51, is offered on shell 5
The air inlet channel 7 being connected to inner cavity 51, nozzle 6 are set to 51 the inside of inner cavity, and the air inlet of nozzle 6 is used for and external confession
Gas channel is connected, and the puff prot of nozzle 6 is extend into gas fired radiant tubes 2, and structure is simple, and design rationally, can be mentioned further
The reliability of high burner burning.
Preferably, it is provided with the primary air entrance 61 being connected to air inlet channel 7 on the side wall of nozzle 6, sets
Meter rationally, may make combustion gas sufficiently to be premixed before burning with air.
Preferably, auxiliary air entrance 52 is offered on shell 5 to be used to for being connected to combustion chamber 21 inner cavity 51, nozzle 6
21 the inside of combustion chamber is extend into after auxiliary air entrance 52, design rationally, can be such that combustion gas carries out inside combustion chamber by force
Column burning, to effectively improve the heat exchange efficiency of water heater.
Specifically, burner 4 further includes blower 8, and blower 8 is set on air inlet channel 7, and structure is simple, compact,
Effectively external air can be imported inside inner cavity by air inlet channel.
In the present embodiment, be provided with air inlet channel 7 on the side of shell 5,7 one end of air inlet channel with it is interior
Chamber 51 is connected, and the other end is connected to blower 8, and nozzle 6 is set to 51 the inside of inner cavity, and shell 5 is arranged in the air inlet of nozzle 6
Side is with for being connected with external air supply channel, the puff prot of nozzle 6 is arranged in the other side of shell 5 and at least partly stretches
Enter to 21 the inside of combustion chamber.When gas water heater working in the present embodiment, 8 rotation work of blower is to pass through external air
Air inlet channel 7 is conveyed toward inner cavity 51, and part of air enters 6 the inside of nozzle by primary air entrance 61, should
Partial air is premixed before fuel gas buring to form primary air, and another part air is then directly entered 51 the inside of inner cavity
The gas control valve body of burning to participate in combustion gas as auxiliary air, water heater is opened, and combustion gas enters inside nozzle 6 and primary
Air after mixing, is lighted premixed gas from the puff prot high speed ejection of nozzle 6, while under the action of igniter, In
Under the action of auxiliary air, combustion gas carries out arranging burning by force inside combustion chamber 21.Blower 8 in the present embodiment is preferably air blast
Machine, but be not limited to air blower, can also suitable blower now according to actual needs.
Preferably, radiation recuperator 3 designs reasonable, ingenious in the peripheral winding in the shape of a spiral of gas fired radiant tubes 2.
Gas fired radiant tubes 2 is conveniently of circular shape in the present embodiment, but is not limited to circle, can also select according to actual needs
Suitable shape is selected, so that the heat exchange efficiency of gas fired radiant tubes 2 is further increased, likewise, one end of radiation recuperator 3 is arranged
To form cooling water inlet 31 on shell 1, the other end is arranged after being set around the periphery of gas fired radiant tubes 2 in the shape of a spiral in shell 1
On to form hot water outlet 32.
Further, exhaust pipe 9 is offered on gas fired radiant tubes 2 to be used to outward discharge the gas in combustion chamber 21,
Its structure is simple, and effectively the exhaust gas that burning generates inside combustion chamber can be discharged outward.
Specifically, diversion pipe 91 is provided between exhaust pipe 9 and gas fired radiant tubes 2, diversion pipe 91 is to flow along gas
Direction gradually narrow, structure is simple, design rationally, to gas carry out water conservancy diversion while also can effectively ensure that combustion gas spoke
Penetrate the stability of flame combustion inside pipe.
In the present embodiment, gas fired radiant tubes 2 are heated to form red-hot high-temperature body, and the gas fired radiant tubes 2 of high temperature are by heat
It is radiated the radiation recuperator 3 that surrounding is full of flowing cool water, the cold water that 3 the inside of radiation recuperator is flowed absorbs radiations heat energy
To be heated, the burning waste gas after being exchanged heat is discharged after becoming low-temperature flue gas by exhaust pipe 9 outward.Water conservancy diversion in the present embodiment
The width of 91 cross section of pipe is gradually reduced from gas fired radiant tubes 2 toward the direction of exhaust pipe 9, thus while carrying out water conservancy diversion to gas
The stability of 2 the inside flame combustion of gas fired radiant tubes is also can effectively ensure that.
Particularly, the inner wall of shell 1 is radiation reflective face, and design rationally, can further ensure the heat exchange of water heater
Effect.
Be between combustion chamber 21 in the present embodiment and radiation recuperator 3 it is independent, the heat that the burning of burner 4 generates is logical
The cold water for crossing 3 the inside of heating radiation heat exchanger in the form of radiation energy of gas fired radiant tubes 2, so effectively improves heat transfer effect, together
When shell 1 inner wall be provided with radiation reflective face with effective reflected radiation energy, while guaranteeing that shell 1 does not generate high temperature,
Scattering and disappearing for heat can be reduced again, also can further improve the heat exchange efficiency of gas heater.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (9)
1. a kind of gas heater of radiant heating, which is characterized in that including shell (1), gas fired radiant tubes (2), radiation heat transfer
Device (3) and burner (4), wherein radiation heat transfer chamber (11) are formed in the shell (1), gas fired radiant tubes (2) setting
Inside the radiation heat transfer chamber (11), the radiation recuperator (3) is wound on the periphery of the gas fired radiant tubes (2),
It is respectively formed cooling water inlet (31) and hot water outlet (32) at the radiation recuperator (3) both ends, in the gas fired radiant tubes (2)
Interior formation combustion chamber (21), the burner (4) are set on the gas fired radiant tubes (2), the combustion that the burner (4) sprays
Gas burning in the combustion chamber (21).
2. a kind of gas heater of radiant heating according to claim 1, which is characterized in that burner (4) packet
Include shell (5) and nozzle (6), wherein the shell (5) have inner cavity (51), offered on the shell (5) with it is described interior
The air inlet channel (7) of chamber (51) connection, the nozzle (6) are set to inside the inner cavity (51), the nozzle (6) into
Port is used to be connected with external air supply channel, and the puff prot of the nozzle (6) is extend into the gas fired radiant tubes (2).
3. a kind of gas heater of radiant heating according to claim 2, which is characterized in that in the nozzle (6)
The primary air entrance (61) being connected to the air inlet channel (7) is provided on side wall.
4. a kind of gas heater of radiant heating according to claim 3, which is characterized in that on the shell (5)
Auxiliary air entrance (52) are offered for being connected to the inner cavity (51) with the combustion chamber (21), the nozzle (6) passes through
It is extend into after the auxiliary air entrance (52) inside the combustion chamber (21).
5. a kind of gas heater of radiant heating according to claim 2, which is characterized in that the burner (4) is also
Including blower (8), the blower (8) is set on the air inlet channel (7).
6. a kind of gas heater of radiant heating according to claim 1, which is characterized in that the radiation recuperator
(3) in the peripheral winding in the shape of a spiral of the gas fired radiant tubes (2).
7. a kind of gas heater of radiant heating according to any one of claims 1 to 6, which is characterized in that in the combustion
Exhaust pipe (9) are provided on gas radiant tube (2) for discharging the gas in the combustion chamber (21) outward.
8. a kind of gas heater of radiant heating according to claim 7, which is characterized in that in the exhaust pipe (9)
It is provided between the gas fired radiant tubes (2) diversion pipe (91), the diversion pipe (91) is along the direction that the gas flows
Gradually narrow.
9. a kind of gas heater of radiant heating according to any one of claims 1 to 6, which is characterized in that the shell
(1) inner wall is radiation reflective face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745840.3A CN110530014A (en) | 2019-08-13 | 2019-08-13 | Gas water heater heated by radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745840.3A CN110530014A (en) | 2019-08-13 | 2019-08-13 | Gas water heater heated by radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110530014A true CN110530014A (en) | 2019-12-03 |
Family
ID=68663100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910745840.3A Pending CN110530014A (en) | 2019-08-13 | 2019-08-13 | Gas water heater heated by radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110530014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780402A (en) * | 2020-07-01 | 2020-10-16 | 宁波晶成机械制造有限公司 | Water heater combustion chamber based on high-thermal-emissivity coating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4007621A1 (en) * | 1990-03-10 | 1991-09-12 | Haas & Sohn Sinn Haus Und Koch | Hot water boiler with burner equipped with fan - has radiant combustion chamber connected to burner outlet |
| CN201000128Y (en) * | 2007-01-12 | 2008-01-02 | 刘树东 | City distributed gas or fuel negative-pressure radiation heating system |
| CN201141698Y (en) * | 2007-07-31 | 2008-10-29 | 邹德升 | Positive displacement type gas water heater |
| CN203703967U (en) * | 2014-01-16 | 2014-07-09 | 湖北大清捷能环保窑炉有限公司 | Self-preheating radiation-tube burner |
| CN106091389A (en) * | 2016-08-10 | 2016-11-09 | 佛山市顺德区迈吉科热能设备有限公司 | A kind of dual pathways combustion heat exchanger |
| CN108826689A (en) * | 2018-07-26 | 2018-11-16 | 广东万家乐燃气具有限公司 | A kind of efficient storage heat exchanger and water heater |
| CN210951847U (en) * | 2019-08-13 | 2020-07-07 | 华帝股份有限公司 | Gas water heater heated by radiation |
-
2019
- 2019-08-13 CN CN201910745840.3A patent/CN110530014A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4007621A1 (en) * | 1990-03-10 | 1991-09-12 | Haas & Sohn Sinn Haus Und Koch | Hot water boiler with burner equipped with fan - has radiant combustion chamber connected to burner outlet |
| CN201000128Y (en) * | 2007-01-12 | 2008-01-02 | 刘树东 | City distributed gas or fuel negative-pressure radiation heating system |
| CN201141698Y (en) * | 2007-07-31 | 2008-10-29 | 邹德升 | Positive displacement type gas water heater |
| CN203703967U (en) * | 2014-01-16 | 2014-07-09 | 湖北大清捷能环保窑炉有限公司 | Self-preheating radiation-tube burner |
| CN106091389A (en) * | 2016-08-10 | 2016-11-09 | 佛山市顺德区迈吉科热能设备有限公司 | A kind of dual pathways combustion heat exchanger |
| CN108826689A (en) * | 2018-07-26 | 2018-11-16 | 广东万家乐燃气具有限公司 | A kind of efficient storage heat exchanger and water heater |
| CN210951847U (en) * | 2019-08-13 | 2020-07-07 | 华帝股份有限公司 | Gas water heater heated by radiation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780402A (en) * | 2020-07-01 | 2020-10-16 | 宁波晶成机械制造有限公司 | Water heater combustion chamber based on high-thermal-emissivity coating |
| CN111780402B (en) * | 2020-07-01 | 2021-05-25 | 宁波晶成机械制造有限公司 | Water heater combustion chamber based on high-thermal-emissivity coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106152479A (en) | Gas heater | |
| RU2494309C2 (en) | Recuperator for radiant tubular burner | |
| CN105333449B (en) | Low-carbon type smoke backflow formula steam boiler low oxygen combustion system | |
| CN203703967U (en) | Self-preheating radiation-tube burner | |
| CN207778773U (en) | Gas heater | |
| CN108088078B (en) | A kind of horizontal heat transfer oil heater and its method | |
| CN110360558A (en) | Cooling flame low nitrogen combustion apparatus and its combustion method | |
| CN107906513A (en) | A kind of U-shaped radiant tube combustion device of one-stroke countercurrent flow | |
| CN110530014A (en) | Gas water heater heated by radiation | |
| CN207214040U (en) | A kind of integrated burner based on combustion gas annealing furnace | |
| CN206724171U (en) | One kind uses coke-stove gas self-preheating type radiant tube combustion device | |
| CN210951847U (en) | Gas water heater heated by radiation | |
| CN207539902U (en) | A kind of U-shaped radiant tube combustion device of one-stroke countercurrent flow | |
| CN206369335U (en) | Hot-water boiler | |
| CN100470162C (en) | Gas-fired water heating boiler | |
| CN101761966A (en) | Non-premixed inverted gas condensing hot water heating stove | |
| CN207610208U (en) | The heat exchanger of low emission metal fiber burner and its composition | |
| CN210772740U (en) | High-efficiency energy-saving full-premixing gas water heater | |
| CN207661988U (en) | A kind of multiple gun metabolic water cold premixing vacuum boiler | |
| CN209310255U (en) | A kind of energy-saving and environmental protection gas heater | |
| CN208042506U (en) | A kind of boiler plant of burner hearth heat convolution heating | |
| CN208237924U (en) | A kind of UTILIZATION OF VESIDUAL HEAT IN energy-saving type range | |
| CN209588013U (en) | A kind of horizontal three return smokes fire tube steam boiler | |
| CN203880773U (en) | Hot-air high-temperature gas stove | |
| CN211177438U (en) | Full premix condensing boiler |
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 |