WO2021238166A1 - 一种立式锅炉节能装置 - Google Patents

一种立式锅炉节能装置 Download PDF

Info

Publication number
WO2021238166A1
WO2021238166A1 PCT/CN2020/135978 CN2020135978W WO2021238166A1 WO 2021238166 A1 WO2021238166 A1 WO 2021238166A1 CN 2020135978 W CN2020135978 W CN 2020135978W WO 2021238166 A1 WO2021238166 A1 WO 2021238166A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
fixedly connected
pipe
energy
bottom plate
Prior art date
Application number
PCT/CN2020/135978
Other languages
English (en)
French (fr)
Inventor
陈坚松
Original Assignee
太仓凯盟精密模具有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 太仓凯盟精密模具有限公司 filed Critical 太仓凯盟精密模具有限公司
Publication of WO2021238166A1 publication Critical patent/WO2021238166A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/30—Technologies for a more efficient combustion or heat usage

Definitions

  • the utility model relates to the technical field of vertical boilers, in particular to a vertical boiler energy-saving device.
  • the vertical boiler is a new-generation horizontal fuel (gas) boiler that integrates various domestic furnace types for technical improvement and absorbs international advanced technology.
  • the design of this product has been declared for a national patent. It is composed of shell, U-shaped ring, furnace liner, furnace liner head, horizontal water pipe and cupola.
  • the heat loss rate is too fast, which easily causes a large amount of energy loss, which does not conform to the production concept of energy saving and environmental protection.
  • the purpose of the utility model is to solve the shortcomings existing in the prior art, and proposes a vertical boiler energy-saving device.
  • a vertical boiler energy-saving device includes a bottom plate, a boiler body, and an exhaust pipe.
  • the outer wall of the exhaust pipe is fixedly connected with a cooling water pipe, and the top outer wall of the bottom plate is fixedly connected with a water pump, and the inner wall of the boiler body is fixedly connected with Insulation layer, and the water inlet end of the water pump is connected to the inner wall of the cooling water pipe through a pipeline, and the water outlet end of the water pump is connected to the inner wall of the insulation layer through a pipeline.
  • the bottom plate is fixedly connected to the top outer wall of the water pump with two supporting columns, and the exhaust pipe is fixedly connected to the top outer walls of the two supporting columns.
  • the top outer wall of the cooling water pipe is fixedly connected with a water inlet pipe.
  • a clean box is fixedly connected to the top outer wall of the bottom plate, and a box cover is placed on the top outer wall of the clean box.
  • the inner wall of the purification box is fixedly connected with a No. 1 filter and a No. 2 filter, and the No. 1 filter is located above the No. 2 filter.
  • an air pump is fixedly connected to the top outer wall of the bottom plate, and the air inlet end of the air pump is connected to the inner wall of the exhaust pipe through a pipe, and the air delivery end of the air pump is connected to the inner wall of the purification box through a pipe.
  • the inner wall of the cooling water pipe is fixedly connected with fixed rings at an equal distance, and the inner walls of every two adjacent fixed rings are fixedly connected with the same ultrasonic vibrating rod.
  • the cooling water pipe recovers the waste heat of the exhaust gas discharged into the exhaust pipe during the operation of the boiler body, and then introduces the heat-absorbed water body into the insulation layer through the water pump, thereby preventing The boiler body plays a role in preventing energy loss and improving its energy saving.
  • the purification box is provided with a No. 1 filter and No. 2 filter inside the clean box.
  • the exhaust gas discharged from the boiler body is initially filtered through the No. 1 filter and No. 2 filter in the clean box to improve the device Environmental protection.
  • the ultrasonic vibrating rod With the fixed ring and ultrasonic vibrating rod, the ultrasonic vibrating rod is fixed inside the cooling water pipe through the fixed ring. When the waste heat in the exhaust gas is recovered, the ultrasonic vibrating rod drives the water body in the cooling water pipe to vibrate, thereby improving the waste heat recovery efficiency .
  • Figure 1 is a schematic diagram of the overall structure of a vertical boiler energy-saving device proposed by the utility model
  • Figure 2 is a schematic diagram of the internal structure of the clean box of a vertical boiler energy-saving device proposed by the utility model;
  • Figure 3 is a schematic diagram of the internal structure of the cooling water pipe of a vertical boiler energy-saving device proposed by the utility model.
  • a vertical boiler energy-saving device includes a bottom plate 1, a boiler body 2 and an exhaust pipe 5.
  • the outer wall of the exhaust pipe 5 is fixedly connected with a cooling water pipe 6, and the top outer wall of the bottom plate 1 is fixedly connected with a water pump 11.
  • the inner wall of the boiler body 2 is fixedly connected with an insulation layer 3, and the inlet end of the water pump 11 is connected to the inner wall of the cooling water pipe 6 through a pipe, and the outlet end of the water pump 11 is connected to the inner wall of the insulation layer 3 through a pipe, and the boiler body 2 works
  • the cooling water pipe 6 recovers the waste heat of the exhaust gas discharged into the exhaust pipe 5, and then introduces the heat-absorbing water body into the insulation layer 3 through the water pump 11, thereby preventing the energy loss of the boiler body 2 and improving Its energy saving.
  • the bottom plate 1 is fixedly connected to the top outer wall of the water pump 11 with two supporting columns 10, and the exhaust pipe 5 is fixedly connected to the top outer walls of the two supporting columns 10.
  • the top outer wall of the cooling water pipe 6 is fixedly connected with a water inlet pipe 4.
  • the top outer wall of the bottom plate 1 is fixedly connected with a clean box 8, and a box cover 7 is placed on the top outer wall of the clean box 8.
  • the inner wall of the purification box 8 is fixedly connected to the No. 1 filter screen 12 and the No. 2 filter screen 13, and the No. 1 filter screen 12 is located above the No. 2 filter screen 13.
  • an air pump 9 is fixedly connected to the top outer wall of the bottom plate 1, and the air inlet end of the air pump 9 is connected to the inner wall of the exhaust pipe 5 through a pipe, and the air delivery end of the air pump 9 is connected to the inner wall of the purification box 8 through a pipe.
  • an energy-saving device for a vertical boiler Compared with Embodiment 1, the inner wall of the cooling water pipe 6 is fixedly connected with fixed rings 14 at an equal distance, and the inner walls of every two adjacent fixed rings 14 are fixedly connected with When the same ultrasonic vibrating rod 15 performs waste heat recovery in the exhaust gas, the ultrasonic vibrating rod 15 drives the water body in the cooling water pipe 6 to vibrate, thereby improving the waste heat recovery efficiency.
  • the exhaust gas generated by the boiler body 2 enters the exhaust pipe 5.
  • the cooling water in the cooling water pipe 6 outside the exhaust pipe 5 absorbs the heat carried in the exhaust gas, and at the same time, the ultrasonic vibrating rod 15 is activated.
  • the vibrating rod 15 accelerates the flow of water in the cooling water pipe 6 to improve the efficiency of waste heat recovery, and then starts the water pump 11, and the water pump 11 guides the water that has absorbed the heat into the insulation layer 3, thereby reducing the heat loss inside the boiler body 2, and at the same time, starting
  • the air pump 9 and the air pump 9 lead the exhaust gas into the purification box 8, and the No. 1 filter screen 12 and the No. 2 filter screen 13 in the purification box 8 perform preliminary purification treatment on the exhaust gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chimneys And Flues (AREA)

Abstract

一种立式锅炉节能装置，包括底板（1）、锅炉本体（2）和排气管（5），排气管（5）的外壁固定连接有冷却水管（6），且底板（1）的顶部外壁固定连接有水泵（11），锅炉本体（2）的内壁固定连接有保温层（3），且水泵（11）的进水端通过管道连接于冷却水管（6）的内壁，水泵（11）的出水端通过管道连接于保温层（3）的内壁，底板（1）靠近水泵（11）的顶部外壁固定连接有两个支撑柱（10），且排气管（5）固定连接于两个支撑柱（10）的顶部外壁。通过设置冷却水管（6）、水泵（11）和保温层（3），锅炉本体（2）工作过程中，冷却水管（6）对排入排气管（5）中的废气进行余热回收，继而通过水泵（11）将吸收了热量的水导入保温层（3）中，从而对锅炉本体（2）起到防止能量散失的作用，提高其节能性。

Description

一种立式锅炉节能装置 技术领域
本实用新型涉及立式锅炉技术领域，尤其涉及一种立式锅炉节能装置。
背景技术
立式锅炉，综合国内各类炉型进行技术改良，吸收了国际先进技术而推出的新生代卧式燃油(气)锅炉，该产品的设计已申报国家专利，锅炉本体由锅壳封头、锅壳、U型圈、炉胆、炉胆封头、横水管、冲天管组成。
现有的立式锅炉在使用的过程中，由于其热量散失速度过快，容易造成大量的能量损耗，不符合节能环保的生产理念，为了降低能量损耗，需要在立式锅炉上安装节能装置，降低该立式锅炉的能量损耗，提高该立式锅炉的节能性，提高其使用价值。
实用新型内容
本实用新型的目的是为了解决现有技术中存在的缺点，而提出的一种立式锅炉节能装置。
为了实现上述目的，本实用新型采用了如下技术方案：
一种立式锅炉节能装置，包括底板、锅炉本体和排气管，所述排气管的外壁固定连接有冷却水管，且底板的顶部外壁固定连接有水泵，所述锅炉本体的内壁固定连接有保温层，且水泵的进水端通过管道连接于冷却水管的内壁，水泵的出水端通过管道连接于保温层的内壁。
优选地，所述底板靠近水泵的顶部外壁固定连接有两个支撑柱，且排气管固定连接于两个支撑柱的顶部外壁。
优选地，所述冷却水管的顶部外壁固定连接有进水管。
优选地，所述底板的顶部外壁固定连接有净化箱，且净化箱的顶部外壁放置有箱盖。
优选地，所述净化箱的内壁固定连接有一号滤网和二号滤网，且一号滤网位于二号滤网上方。
优选地，所述底板的顶部外壁固定连接有气泵，且气泵的进气端通过管道连接于排气管的内壁，气泵的输气端通过管道连接于净化箱的内壁。
优选地，所述冷却水管的内壁等距离固定连接有固定环，且每相邻的两个固定环的内壁固定连接有同一个超声波振动棒。
本实用新型的有益效果为：
1、通过设置有冷却水管、水泵和保温层，锅炉本体工作过程中，冷却水管对排入排气管中的废气进行余热回收，继而通过水泵将吸收了热量的水体导入保温层中，从而对锅炉本体起 到防止能量散失的作用，提高其节能性。
2、通过设置有净化箱，净化箱内部设置有一号滤网和二号滤网，锅炉本体排出的废气通过净化箱中的一号滤网和二号滤网对其进行初步过滤，提高该装置的环保性。
3、通过设置有固定环和超声波振动棒，超声波振动棒通过固定环固定于冷却水管的内部，进行废气中的余热回收时，超声波振动棒带动冷却水管中的水体震动，从而可以提高余热回收效率。
附图说明
图1为本实用新型提出的一种立式锅炉节能装置的整体结构示意图；
图2为本实用新型提出的一种立式锅炉节能装置的净化箱内部结构示意图；
图3为本实用新型提出的一种立式锅炉节能装置的冷却水管内部结构示意图。
图中：1-底板、2-锅炉本体、3-保温层、4-进水管、5-排气管、6-冷却水管、7-箱盖、8-净化箱、9-气泵、10-支撑柱、11-水泵、12-一号滤网、13-二号滤网、14-固定环、15-超声波振动棒。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。
在本实用新型的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
实施例1：
参照图1-2，一种立式锅炉节能装置，包括底板1、锅炉本体2和排气管5，排气管5的外壁固定连接有冷却水管6，且底板1的顶部外壁固定连接有水泵11，锅炉本体2的内壁固定连接有保温层3，且水泵11的进水端通过管道连接于冷却水管6的内壁，水泵11的出水端通过管道连接于保温层3的内壁，锅炉本体2工作过程中，冷却水管6对排入排气管5中的废气进行余热回收，继而通过水泵11将吸收了热量的水体导入保温层3中，从而对锅炉本体2起到防止能量散失的作用，提高其节能性。
其中，底板1靠近水泵11的顶部外壁固定连接有两个支撑柱10，且排气管5固定连接于两个支撑柱10的顶部外壁。
其中，冷却水管6的顶部外壁固定连接有进水管4。
其中，底板1的顶部外壁固定连接有净化箱8，且净化箱8的顶部外壁放置有箱盖7。
其中，净化箱8的内壁固定连接有一号滤网12和二号滤网13，且一号滤网12位于二号滤网13上方。
其中，底板1的顶部外壁固定连接有气泵9，且气泵9的进气端通过管道连接于排气管5的内壁，气泵9的输气端通过管道连接于净化箱8的内壁。
工作原理：使用时，锅炉本体2产生的废气进入排气管5中，排气管5外侧的冷却水管6中的冷却水对废气中携带的热量进行吸收，继而启动水泵11，水泵11将吸收了热量的水体导入保温层3中，从而降低锅炉本体2内部的热量散失，同时，启动气泵9，气泵9将废气导入净化箱8中，净化箱8中的一号滤网12和二号滤网13对废气进行初步净化处理。
实施例2：
参照图1-3，一种立式锅炉节能装置，与实施例1相比，冷却水管6的内壁等距离固定连接有固定环14，且每相邻的两个固定环14的内壁固定连接有同一个超声波振动棒15，进行废气中的余热回收时，超声波振动棒15带动冷却水管6中的水体震动，从而可以提高余热回收效率。
工作原理：使用时，锅炉本体2产生的废气进入排气管5中，排气管5外侧的冷却水管6中的冷却水对废气中携带的热量进行吸收，同时，启动超声波振动棒15，超声波振动棒15加速冷却水管6中的水体流动，从而提高余热回收效率，继而启动水泵11，水泵11将吸收了热量的水体导入保温层3中，从而降低锅炉本体2内部的热量散失，同时，启动气泵9，气泵9将废气导入净化箱8中，净化箱8中的一号滤网12和二号滤网13对废气进行初步净化处理。
以上所述，仅为本实用新型较佳的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，根据本实用新型的技术方案及其实用新型构思加以等同替换或改变，都应涵盖在本实用新型的保护范围之内。

Claims (7)

  1. 一种立式锅炉节能装置，包括底板(1)、锅炉本体(2)和排气管(5)，其特征在于，所述排气管(5)的外壁固定连接有冷却水管(6)，且底板(1)的顶部外壁固定连接有水泵(11)，所述锅炉本体(2)的内壁固定连接有保温层(3)，且水泵(11)的进水端通过管道连接于冷却水管(6)的内壁，水泵(11)的出水端通过管道连接于保温层(3)的内壁。
  2. 根据权利要求1所述的一种立式锅炉节能装置，其特征在于，所述底板(1)靠近水泵(11)的顶部外壁固定连接有两个支撑柱(10)，且排气管(5)固定连接于两个支撑柱(10)的顶部外壁。
  3. 根据权利要求2所述的一种立式锅炉节能装置，其特征在于，所述冷却水管(6)的顶部外壁固定连接有进水管(4)。
  4. 根据权利要求1所述的一种立式锅炉节能装置，其特征在于，所述底板(1)的顶部外壁固定连接有净化箱(8)，且净化箱(8)的顶部外壁放置有箱盖(7)。
  5. 根据权利要求4所述的一种立式锅炉节能装置，其特征在于，所述净化箱(8)的内壁固定连接有一号滤网(12)和二号滤网(13)，且一号滤网(12)位于二号滤网(13)上方。
  6. 根据权利要求1所述的一种立式锅炉节能装置，其特征在于，所述底板(1)的顶部外壁固定连接有气泵(9)，且气泵(9)的进气端通过管道连接于排气管(5)的内壁，气泵(9)的输气端通过管道连接于净化箱(8)的内壁。
  7. 根据权利要求1-6任一所述的一种立式锅炉节能装置，其特征在于，所述冷却水管(6)的内壁等距离固定连接有固定环(14)，且每相邻的两个固定环(14)的内壁固定连接有同一个超声波振动棒(15)。
PCT/CN2020/135978 2020-05-25 2020-12-12 一种立式锅炉节能装置 WO2021238166A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202020892300.6 2020-05-25
CN202020892300 2020-05-25

Publications (1)

Publication Number Publication Date
WO2021238166A1 true WO2021238166A1 (zh) 2021-12-02

Family

ID=78745562

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/135978 WO2021238166A1 (zh) 2020-05-25 2020-12-12 一种立式锅炉节能装置

Country Status (1)

Country Link
WO (1) WO2021238166A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114278957A (zh) * 2021-12-28 2022-04-05 江西方德能源环境工程有限公司 一种用于工业燃气锅炉的烟气余热回收系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160440A (en) * 1978-02-06 1979-07-10 Andrew Barnickle Heat exchanger
JP2004085118A (ja) * 2002-08-28 2004-03-18 Yoshitsugu Sakurai 熱分解処理装置
CN207162928U (zh) * 2017-09-05 2018-03-30 浙江恒鑫电力有限公司 一种锅炉余热高效回收循环利用装置
CN108800552A (zh) * 2018-08-29 2018-11-13 湖北艾孚威环境能源科技有限公司 一种输水保温性能好的燃烧锅炉
CN108786387A (zh) * 2018-08-29 2018-11-13 湖北艾孚威环境能源科技有限公司 一种燃烧锅炉用排烟管处尾气过滤装置
CN108826336A (zh) * 2018-08-29 2018-11-16 湖北艾孚威环境能源科技有限公司 一种燃烧锅炉的热风净化装置
CN109028592A (zh) * 2018-07-18 2018-12-18 浙江萨弘科技有限公司 一种可以去水垢的全预混冷凝燃气壁挂炉
CN110068022A (zh) * 2018-01-23 2019-07-30 佛山市广雅金属橡胶制品有限公司 天然气热水锅炉余热回收装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160440A (en) * 1978-02-06 1979-07-10 Andrew Barnickle Heat exchanger
JP2004085118A (ja) * 2002-08-28 2004-03-18 Yoshitsugu Sakurai 熱分解処理装置
CN207162928U (zh) * 2017-09-05 2018-03-30 浙江恒鑫电力有限公司 一种锅炉余热高效回收循环利用装置
CN110068022A (zh) * 2018-01-23 2019-07-30 佛山市广雅金属橡胶制品有限公司 天然气热水锅炉余热回收装置
CN109028592A (zh) * 2018-07-18 2018-12-18 浙江萨弘科技有限公司 一种可以去水垢的全预混冷凝燃气壁挂炉
CN108800552A (zh) * 2018-08-29 2018-11-13 湖北艾孚威环境能源科技有限公司 一种输水保温性能好的燃烧锅炉
CN108786387A (zh) * 2018-08-29 2018-11-13 湖北艾孚威环境能源科技有限公司 一种燃烧锅炉用排烟管处尾气过滤装置
CN108826336A (zh) * 2018-08-29 2018-11-16 湖北艾孚威环境能源科技有限公司 一种燃烧锅炉的热风净化装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114278957A (zh) * 2021-12-28 2022-04-05 江西方德能源环境工程有限公司 一种用于工业燃气锅炉的烟气余热回收系统
CN114278957B (zh) * 2021-12-28 2023-09-19 江西方德能源环境工程有限公司 一种用于工业燃气锅炉的烟气余热回收系统

Similar Documents

Publication Publication Date Title
WO2021238166A1 (zh) 一种立式锅炉节能装置
CN210921791U (zh) 一种节能环保的新能源燃烧炉
CN207585373U (zh) 一种节能环保型的余热回收供汽系统
CN201476641U (zh) 热风余热回收装置
CN105090921A (zh) 一种节能环保蒸汽锅炉
CN211373317U (zh) 一种废气处理用换热结构
CN207920698U (zh) 一种新型发电机余热高效回收利用装置
CN206706223U (zh) 一种热量回收利用装置
CN212158226U (zh) 一种涂装环保机械设备用余热回收装置
CN211625286U (zh) 一种废气催化燃烧处理装置
CN207741097U (zh) 一种火化机烟气冷却装置
CN108362154B (zh) 一种能对烟气进行充分余热回收的环保型设备
CN220304295U (zh) 一种生物质热风炉烟气除尘结构
CN219318420U (zh) 一种循环流化床锅炉用冷却装置
CN216964017U (zh) 一种生产陶粒支撑剂的新型节能收尘器
CN215175173U (zh) 一种可净化烟尘的生物质颗粒燃烧炉
CN212456935U (zh) 一种可回收热能的热力发电锅炉
CN213984024U (zh) 一种高效节能型锅炉
CN221054028U (zh) 一种高炉鼓风机热风利用装置
CN216592841U (zh) 一种工业节能用蒸汽余热回收系统
CN220090923U (zh) 一种环保用废气回收处理装置
CN204986987U (zh) 一种锅壳式火管循环流化床锅炉
CN219607815U (zh) 一种旋流式烟气换热器
CN221146553U (zh) 一种具有余热回收再利用的rto废气处理装置
CN208936189U (zh) 一种锅炉尾烟余热回收装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20937878

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20937878

Country of ref document: EP

Kind code of ref document: A1