CN113834138A - Water retaining and air guiding device and refrigeration equipment - Google Patents
Water retaining and air guiding device and refrigeration equipment Download PDFInfo
- Publication number
- CN113834138A CN113834138A CN202111217534.6A CN202111217534A CN113834138A CN 113834138 A CN113834138 A CN 113834138A CN 202111217534 A CN202111217534 A CN 202111217534A CN 113834138 A CN113834138 A CN 113834138A
- Authority
- CN
- China
- Prior art keywords
- air
- water
- retaining
- plate
- guiding device
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000005057 refrigeration Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a water retaining and air guiding device and refrigeration equipment, and relates to the technical field of ventilation equipment. The water-retaining and air-guiding device comprises a shell with an air inlet and an air outlet, wherein a water-retaining and air-guiding component is arranged in the shell and consists of at least one group of water-retaining and air-guiding components, each water-retaining and air-guiding component comprises an inclined plate and a vertical plate connected with the inclined plate, and one end, far away from the air outlet, of the inclined plate is provided with a water-retaining plate with an opening facing the air outlet. The aim is to reduce and improve the resistance to wind on the premise of ensuring the water retaining effect of the air inlet device.
Description
Technical Field
The invention relates to the technical field of ventilation equipment, in particular to a water retaining and air guiding device and refrigeration equipment.
Background
Arrange outdoor air conditioning unit return air inlet or all kinds of wind channel air inlets department in and all can set up hot blast blowpipe apparatus, the device can set up the manger plate structure usually, but traditional hot blast blowpipe apparatus adopts manger plate tripe structure manger plate, and it becomes the V font and arranges in the framework, though can obstruct partial water droplet entering wind gap, nevertheless can produce great windage, is unfavorable for the air intake air. How to reduce the resistance to wind under the prerequisite of guaranteeing the manger plate effect of hot blast blowpipe apparatus has become the technological problem who awaits a urgent need to solve.
Disclosure of Invention
The invention mainly aims to provide a water retaining and guiding device for an air port, aiming at reducing and improving the resistance to wind on the premise of ensuring the water retaining effect of an air inlet device.
In order to achieve the purpose, the invention provides a water-retaining and air-guiding device which comprises a shell with an air inlet and an air outlet, wherein a water-retaining and air-guiding component is arranged in the shell and consists of at least one group of water-retaining and air-guiding pieces, each water-retaining and air-guiding piece comprises an inclined plate and a vertical plate connected with the inclined plate, and one end, far away from the air outlet, of each inclined plate is provided with a water-retaining plate with an opening facing the air outlet.
In an embodiment of the application, when the inclined plate is the first section of the air duct in the direction from the air inlet to the air outlet of the water-retaining and air-guiding assembly, an extending vertical plate is connected to one end, close to the air outlet, of the inclined plate.
In an embodiment of the application, when the water-retaining wind guide members are two or more groups, included angles between vertical plates and inclined plates on two adjacent groups of the water-retaining wind guide members face different directions.
In an embodiment of the application, the water-retaining plate and the inclined plate are connected by adopting a seam full-weld forming process.
In an embodiment of the present application, a water collecting tank is arranged at the bottom of the casing, and a quick coupling for discharging liquid in the water collecting tank is arranged at the bottom of the water collecting tank.
In an embodiment of the application, the air inlet position of the casing is provided with a water-stop plate member which extends outwards of the casing and is inclined downwards along the vertical direction.
In an embodiment of the present application, an overflow port is disposed on a side of the water collection tank close to the air outlet.
In an embodiment of the present application, the overflow outlet is 30mm away from the air outlet.
The application also discloses refrigeration equipment, which comprises the water-retaining and air-guiding device.
In an embodiment of the application, the refrigeration device comprises an air conditioner.
By adopting the technical scheme, through the mutual matching of the vertical plate and the inclined plate, the resistance to wind is reduced on the premise of ensuring the water retaining effect of the air inlet device, and the energy consumption is reduced, so that the liquid collection is more favorably realized.
Drawings
The invention is described in detail below with reference to specific embodiments and the attached drawing figures, wherein:
fig. 1 is a front view of a first embodiment of the present invention.
Fig. 2 is a sectional view taken along a-a in fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is an enlarged schematic view of a portion B in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 to 4, in order to achieve the above purpose, the present invention provides a water-retaining and air-guiding device, which includes a housing 10 having an air inlet 90 and an air outlet 70, a water-retaining and air-guiding assembly is disposed in the housing 10, the water-retaining and air-guiding assembly includes at least one group of water-retaining and air-guiding members, the water-retaining and air-guiding members include an inclined plate 40 and a vertical plate 30 connected to the inclined plate 40, and one end of the inclined plate 40, which is far away from the air outlet, is provided with a water-retaining plate 50 having an opening facing the air outlet 70.
Specifically, the invention discloses a water retaining and air guiding device, which comprises a shell 10, wherein the shell 10 is formed by bending a sheet metal part, and the used manufacturing material is a metal material, such as aluminum alloy, alloy steel and the like. The housing 10 made of metal material has the advantages of strong supporting capability, wear resistance and the like. Of course, other materials may be used according to design requirements, such as plastic materials, and the housing 10 made of plastic materials has the advantages of light weight, low cost, etc. The casing 10 is provided with the air inlet 90 and the air outlet 70, and the positions of the air inlet 90 and the air outlet 70 are opposite to each other, so that a straight air channel is formed in the casing 10, the wind resistance is reduced, and the energy loss is reduced. A water retaining and air guiding assembly is arranged between the air inlet 90 and the air outlet 70. Wherein the water-retaining air guide component consists of at least one group of water-retaining air guide pieces.
The water-retaining wind guide is composed of an inclined plate 40 and a vertical plate 30. It includes two kinds of connected modes, does respectively:
1. when the inclined plate 40 is a first section of air duct in the direction from the air inlet 90 to the air outlet 70, the vertical plate 30 is connected to the inclined plate 40 at the end far away from the air inlet 90, the plane where the vertical plate 30 is located is perpendicular to the plane where the air inlet 90 is located, the end far away from the air inlet 90 on the inclined plate 40 is provided with the water-retaining plate 50, and the water-retaining plate 50 faces the air inlet 90.
By adopting the structure, the inclined plate 40 and the water retaining plate 50 are matched with each other to prevent liquid from entering the air outlet 70 of the water retaining and air guiding device, and then the vertical plate 30 is used for reducing the obstruction to air flow, so that the obstruction to the air flow is reduced as much as possible on the premise of ensuring the obstruction to the liquid, the air resistance is reduced, and the energy loss is reduced.
2. When the vertical plate 30 is a first section of air duct in the direction from the air inlet 90 to the air outlet 70, the inclined plate 40 is connected to the end of the vertical plate 30 far away from the air inlet 90, the plane where the vertical plate 30 is located is perpendicular to the plane where the air inlet 90 is located, the end of the inclined plate 40 far away from the air inlet 90 is provided with a water-retaining plate 50, and the water-retaining plate 50 faces the air inlet 90.
By adopting the structure, the blocking to the air flow is reduced through the vertical plate 30, at the moment, more liquid can be brought into the air flow, and then the brought liquid is collected through the mutual matching of the inclined plate 40 and the water baffle plate 50, so that the water baffle and air guide device collects more liquid.
The utility model provides an adopt fixed connection's mode to be connected between slope plate 40 and the vertical plate 30, adopt fixed connection's mode to connect and can improve the joint strength between slope plate 40 and the vertical plate 30, and fixed connected mode has welding, bonding etc.. Of course, the vertical plate 30 and the inclined plate 40 can be formed by bending a sheet metal part, and the connection strength between the inclined plate 40 and the vertical plate 30 is higher and more stable by adopting the mode.
When the water retaining and air guiding assembly consists of two groups of water retaining and air guiding pieces, the water retaining and air guiding pieces are respectively a first water retaining and air guiding piece and a second water retaining and air guiding piece, and the front end of the second water retaining and air guiding piece is connected to the tail end of the first water retaining and air guiding piece and keeps a linear shape.
Adopt above-mentioned technical scheme, through setting up mutually supporting of vertical plate 30 and slope plate 40, under the prerequisite of guaranteeing hot blast blowpipe apparatus's manger plate effect, reduced the resistance to wind, reduced the consumption of energy and also do benefit to the collection of liquid more.
In an embodiment of the present application, when the inclined plate 40 is a first air duct in a direction from the air inlet 90 to the air outlet 70 of the water-blocking and air-guiding assembly, an extended vertical plate 31 is connected to one end of the inclined plate 40 close to the air outlet 70.
Specifically, when the inclined plate 40 is a first section of air duct in the direction from the air inlet 90 to the air outlet 70, one end of the inclined plate close to the air outlet 70 is connected with the extending vertical plate 31, the blocking to the air can be reduced by setting the extending vertical plate 31, and more liquid is brought in by the air, so that the inclined plate 40 and the water-retaining plate 50 collect the liquid.
In an embodiment of the present application, when two or more water-retaining wind guides are provided, the included angles between the vertical plates 30 and the inclined plates 40 on two adjacent water-retaining wind guides face different directions.
Specifically, when the manger plate wind guide is two sets of, the contained angle orientation difference direction between the vertical plate 30 and the slope plate 40 on two sets of adjacent manger plate wind guide, simultaneously because two adjacent manger plate wind guide are first linear connection to make manger plate wind guide's width keep the fixed value, further reduced the resistance to wind.
In an embodiment of the present application, the water guard plate 50 and the inclined plate 40 are connected by a fillet full-weld forming process.
Specifically, the water blocking plate 50 and the inclined plate 40 are connected by adopting a seam full-welding forming process, so that the connection strength between the water blocking plate 50 and the inclined plate 40 is improved, and the seam full-welding forming process means that all contact places of the two workpieces are welded by full welding after the water blocking plate 50 is contacted with the inclined plate 40, so that the connection strength is ensured.
In an embodiment of the present application, the bottom of the housing 10 is provided with a water collecting tank 60, and the bottom of the water collecting tank 60 is provided with a quick coupling 20 for discharging liquid in the water collecting tank 60.
Specifically, the water collecting groove 60 is arranged at the bottom of the housing 10, the water collecting groove 60 is used for collecting the liquid blocked by the inclined plate 40 and the water baffle, and the blocked liquid is collected through the water collecting groove 60, so that the realization of reutilization is of great significance for some regions lacking of fresh water resources. The bottom of the water collecting tank 60 is provided with a quick coupling 20 for facilitating quick connection with other pipe fittings.
In an embodiment of the present application, the air inlet 90 of the housing 10 is provided with a water-stop plate 80 extending outward of the housing 10 and inclined downward in a vertical direction.
Specifically, the air inlet 90 of the housing 10 is provided with the water-stop plate 80 which extends outwards of the housing 10 and inclines downwards along the vertical direction, so that liquid is blocked by the water-stop plate 80, the possibility that the liquid enters the inside of the housing 10 is greatly reduced, and the water-retaining performance is improved.
In an embodiment of the present application, an overflow port is disposed on a side of the water collection tank 60 near the air outlet 70.
Specifically, an overflow port is arranged on one side of the water collecting tank 60 close to the air outlet 70, so that the overflow of the liquid in the water collecting tank 60 into the air outlet 70 is avoided. The safety of the device is improved.
In an embodiment of the present application, the overflow outlet is 30mm away from the air outlet.
Specifically, the overflow port is 30mm away from the air outlet, so that the safety of the air outlet 70 is ensured.
The application also discloses refrigeration equipment, which comprises the water-retaining and air-guiding device.
In an embodiment of the application, the refrigeration device comprises an air conditioner.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a manger plate air ducting, is including the casing that has air intake and air outlet, be equipped with manger plate air guide component in the casing, manger plate air guide component comprises at least a set of manger plate air guide, its characterized in that, manger plate air guide component including slope plate and with the vertical plate that the slope plate is connected, keep away from on the slope plate the one end of air outlet is equipped with the opening orientation the manger plate piece of air outlet.
2. The water-retaining and air-guiding device as claimed in claim 1, wherein when the inclined plate is a first segment of air duct of the water-retaining and air-guiding assembly in a direction from the air inlet to the air outlet, an extended vertical plate is connected to an end of the inclined plate close to the air outlet.
3. The water-retaining and air-guiding device as claimed in claim 1, wherein when there are two or more sets of water-retaining and air-guiding members, the included angles between the vertical plates and the inclined plates of two adjacent sets of water-retaining and air-guiding members face different directions.
4. The water-retaining and air-guiding device as claimed in claim 1, wherein the water-retaining plate member and the inclined plate member are connected by a full-length tailor welding process.
5. The water retaining and air guiding device according to claim 1, wherein a water collecting tank is provided at the bottom of the housing, and a quick coupling for discharging liquid in the water collecting tank is provided at the bottom of the water collecting tank.
6. The water retaining and air guiding device as claimed in claim 1, wherein a water blocking plate extending outward of the housing and inclined downward in a vertical direction is disposed at the air inlet of the housing.
7. The water-retaining and air-guiding device as claimed in claim 5, wherein an overflow port is provided on a side of the water collection tank adjacent to the air outlet.
8. The water-retaining and air-guiding device as claimed in claim 5, wherein the distance between the overflow port and the air outlet is 30 mm.
9. A refrigerating device, characterized by comprising the water-retaining and air-guiding device as claimed in any one of claims 1 to 8.
10. The refrigeration appliance according to claim 9 wherein said refrigeration appliance comprises an air conditioner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111217534.6A CN113834138A (en) | 2021-10-19 | 2021-10-19 | Water retaining and air guiding device and refrigeration equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111217534.6A CN113834138A (en) | 2021-10-19 | 2021-10-19 | Water retaining and air guiding device and refrigeration equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113834138A true CN113834138A (en) | 2021-12-24 |
Family
ID=78965575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111217534.6A Pending CN113834138A (en) | 2021-10-19 | 2021-10-19 | Water retaining and air guiding device and refrigeration equipment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113834138A (en) |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070070086A (en) * | 2005-12-28 | 2007-07-03 | 산요덴키가부시키가이샤 | Floor arrangement type air sterilizing device |
CN205227737U (en) * | 2015-12-11 | 2016-05-11 | 上海东富龙德惠空调设备有限公司 | Air conditioning unit water retaining device |
CN206862199U (en) * | 2017-05-29 | 2018-01-09 | 浙江联银冷却塔有限公司 | A kind of blind window of cooling tower of splash-proof |
CN210004617U (en) * | 2019-05-30 | 2020-01-31 | 刘龙涛 | evaporative condensing screw water chilling unit |
CN210049924U (en) * | 2019-03-06 | 2020-02-11 | 中煤科工集团重庆研究院有限公司 | Water retaining device and air cooler |
CN210128498U (en) * | 2019-05-23 | 2020-03-06 | 合肥丰蓝电器有限公司 | Air conditioner fresh air inlet device with water retaining and dust preventing structure |
CN210602967U (en) * | 2019-06-25 | 2020-05-22 | 山东莱钢永锋钢铁有限公司 | Improved air inlet grille of cooling tower |
CN211081949U (en) * | 2019-09-30 | 2020-07-24 | 泰安环宇除尘科技有限公司 | Multi-folded plate filtering wet dust removal fan |
CN111609544A (en) * | 2020-04-17 | 2020-09-01 | 岭东核电有限公司 | Water blocking member for cooler and cooling system for nuclear power station |
CN111964245A (en) * | 2019-05-20 | 2020-11-20 | 浙江盾安机电科技有限公司 | Water baffle assembly and air conditioning unit |
CN212560062U (en) * | 2020-05-29 | 2021-02-19 | 唐山三友集团兴达化纤有限公司 | Dehydrator and alkali fiber cooling and dehumidifying device |
CN214223376U (en) * | 2020-11-14 | 2021-09-17 | 格力电器(合肥)有限公司 | Water baffle assembly and air conditioning unit |
CN216048083U (en) * | 2021-10-19 | 2022-03-15 | 珠海格力电器股份有限公司 | Water retaining and air guiding device and refrigeration equipment |
-
2021
- 2021-10-19 CN CN202111217534.6A patent/CN113834138A/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070070086A (en) * | 2005-12-28 | 2007-07-03 | 산요덴키가부시키가이샤 | Floor arrangement type air sterilizing device |
CN205227737U (en) * | 2015-12-11 | 2016-05-11 | 上海东富龙德惠空调设备有限公司 | Air conditioning unit water retaining device |
CN206862199U (en) * | 2017-05-29 | 2018-01-09 | 浙江联银冷却塔有限公司 | A kind of blind window of cooling tower of splash-proof |
CN210049924U (en) * | 2019-03-06 | 2020-02-11 | 中煤科工集团重庆研究院有限公司 | Water retaining device and air cooler |
CN111964245A (en) * | 2019-05-20 | 2020-11-20 | 浙江盾安机电科技有限公司 | Water baffle assembly and air conditioning unit |
CN210128498U (en) * | 2019-05-23 | 2020-03-06 | 合肥丰蓝电器有限公司 | Air conditioner fresh air inlet device with water retaining and dust preventing structure |
CN210004617U (en) * | 2019-05-30 | 2020-01-31 | 刘龙涛 | evaporative condensing screw water chilling unit |
CN210602967U (en) * | 2019-06-25 | 2020-05-22 | 山东莱钢永锋钢铁有限公司 | Improved air inlet grille of cooling tower |
CN211081949U (en) * | 2019-09-30 | 2020-07-24 | 泰安环宇除尘科技有限公司 | Multi-folded plate filtering wet dust removal fan |
CN111609544A (en) * | 2020-04-17 | 2020-09-01 | 岭东核电有限公司 | Water blocking member for cooler and cooling system for nuclear power station |
CN212560062U (en) * | 2020-05-29 | 2021-02-19 | 唐山三友集团兴达化纤有限公司 | Dehydrator and alkali fiber cooling and dehumidifying device |
CN214223376U (en) * | 2020-11-14 | 2021-09-17 | 格力电器(合肥)有限公司 | Water baffle assembly and air conditioning unit |
CN216048083U (en) * | 2021-10-19 | 2022-03-15 | 珠海格力电器股份有限公司 | Water retaining and air guiding device and refrigeration equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN216048083U (en) | Water retaining and air guiding device and refrigeration equipment | |
CN206847036U (en) | Condensate water collecting device, heat exchange assembly and air conditioner | |
CN113834138A (en) | Water retaining and air guiding device and refrigeration equipment | |
CN203024290U (en) | Outdoor unit of refrigerating device | |
CN109269071A (en) | Heat exchanger assembly and air conditioner indoor unit | |
CN211012555U (en) | Flat plate fin, micro-channel heat exchanger and air conditioner | |
CN208419150U (en) | A kind of air duct drainage face structure and the mobile air conditioner with the structure | |
CN105546779A (en) | Air rectifying device and air conditioner | |
CN206176821U (en) | Microchannel heat exchanger and air conditioner | |
CN213901283U (en) | Air condensing units and battery cabinet | |
CN209763804U (en) | Heat exchanger and air conditioner with same | |
CN210119132U (en) | A fin, heat exchanger and air condensing units for heat exchanger | |
CN211177054U (en) | Air conditioner indoor unit and air conditioner | |
CN215637933U (en) | Water collector and air conditioner | |
CN211925909U (en) | Heat exchanger for air conditioner indoor unit and air conditioner indoor unit | |
CN108443118B (en) | Compressor rear cooler of integrated water separation device | |
CN216924706U (en) | Air duct machine | |
CN214468962U (en) | Heat exchanger assembly structure of indoor unit of air conditioner | |
CN207113029U (en) | Indoor set and air-conditioning system | |
CN219160575U (en) | Air duct system and cabinet air conditioner with same | |
CN220506973U (en) | Air duct machine | |
CN113739273B (en) | Heat exchange air duct assembly and air conditioner | |
CN214009511U (en) | Air duct piece of air conditioner and air conditioner with air duct piece | |
CN221400848U (en) | Compressor rear cooler with built-in water separation function | |
CN204730330U (en) | Indoor set and there is its air-conditioner |
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 |