CN103574810B - Pressure-bearing is met an urgent need cooling apparatus - Google Patents

Pressure-bearing is met an urgent need cooling apparatus Download PDF

Info

Publication number
CN103574810B
CN103574810B CN201310535774.XA CN201310535774A CN103574810B CN 103574810 B CN103574810 B CN 103574810B CN 201310535774 A CN201310535774 A CN 201310535774A CN 103574810 B CN103574810 B CN 103574810B
Authority
CN
China
Prior art keywords
water
tank
distributive pipe
pressure
bearing
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.)
Active
Application number
CN201310535774.XA
Other languages
Chinese (zh)
Other versions
CN103574810A (en
Inventor
陈向阳
张新昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGZHOU TOPSUN POWER TECHNOLOGY Co Ltd
Original Assignee
GUANGZHOU TOPSUN POWER TECHNOLOGY Co Ltd
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 GUANGZHOU TOPSUN POWER TECHNOLOGY Co Ltd filed Critical GUANGZHOU TOPSUN POWER TECHNOLOGY Co Ltd
Priority to CN201310535774.XA priority Critical patent/CN103574810B/en
Publication of CN103574810A publication Critical patent/CN103574810A/en
Application granted granted Critical
Publication of CN103574810B publication Critical patent/CN103574810B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of pressure-bearing to meet an urgent need cooling apparatus, include tank body, the upper water distributor on described tank body top is provided with air diffuser and upper distributive pipe, described upper distributive pipe is connected with chilled water water return pipeline by hot water pipeline, the lower water-dispensing device of the bottom of described tank body is provided with lower air diffuser and lower distributive pipe, and described lower distributive pipe is connected with chilled water outlet conduit by cold water pipes;At cold-storage or when letting cool, chilled water or hot water on described air diffuser, on distributive pipe, lower air diffuser, lower distributive pipe water (flow) direction different.By tank body and upper water distributor, effective combination of lower water-dispensing device, i.e. by changing upper air diffuser, upper distributive pipe, lower air diffuser and the water (flow) direction of lower distributive pipe, it is achieved cold-storage or let cool.The size characteristics needing not rely on tank body realizes cold-storage and lets cool, and ratio of height to diameter example is reasonable, it is not required that use plate type heat exchanger to carry out heat exchange, and then low cost, and superfluous calamity safety is high.

Description

Pressure-bearing is met an urgent need cooling apparatus
Technical field
The present invention relates to a kind of cold-storage device, refer in particular to a kind of pressure-bearing and meet an urgent need cooling apparatus.
Background technology
Being currently used for data center's superfluous calamity cold-storage device mainly has open type normal pressure water pot to carry out cold-storage and water storage pool Deng two kinds.Cold-storage is carried out, for preventing chilled water backwater from flowing backwards must be requested that open according to open type normal pressure water pot Formula water at atmospheric pressure tank height is the highest more than machine building for cold spot height.Existing for cold spot height of general data center Between 20-30 rice, and the volume of the cold-storage device used by the superfluous calamity of each data center is not over 600m3, therefore The ratio of height to diameter of open type normal pressure water pot, close to 4:1, considerably increases difficulty of construction and construction risk, and due to The problem such as crustal movement, typhoon, the risk of such water pot longtime running is the highest.Carry out according to water storage pool Cold-storage, in order to prevent freezing backwater from flowing backwards, it is necessary to use heat exchanger to carry out heat exchange, put because instantaneous during superfluous calamity Cold is very big, and the requirement of heat exchanger is higher, causes cost investment bigger;On the other hand, from superfluous calamity efficiency From the point of view of, use heat exchanger to carry out heat exchange and can there is thermograde loss, and corresponding disaster tolerant system is more Complexity, failure risk rate is high.Further, built data center's above two cold-storage device construction is received Site influence is bigger.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, it is provided that a kind of safety is high, and low cost Pressure-bearing meet an urgent need cooling apparatus.
Its technical scheme is as follows:
A kind of pressure-bearing is met an urgent need cooling apparatus, includes tank body, be fixed on described tank body top upper water distributor, The lower water-dispensing device of bottom, described upper water distributor includes air diffuser and upper distributive pipe, and described upper distributive pipe leads to Superheated water pipeline connects with chilled water water return pipeline, and described lower water-dispensing device includes lower air diffuser and lower distributive pipe, Described lower distributive pipe is connected with chilled water outlet conduit by cold water pipes;At cold-storage or when letting cool, chilled water Or hot water on described air diffuser, on distributive pipe, lower air diffuser, lower distributive pipe water (flow) direction different.
Below further technical scheme is illustrated:
Preferably, described upper distributive pipe is connected by Hollow Pillar with described lower distributive pipe, described hollow Post is divided into two sections connected respectively with hot water pipeline, cold water pipes by division board.
Preferably, being axially arranged with cable for measuring temperature along described tank body, the upper end of described cable for measuring temperature is by sealing Pedestal is fixing with the upper end of described tank body to be connected, and cable for measuring temperature is provided with multiple temperature probe.
Preferably, described sealing base includes with externally threaded conical head, is fixed on described tank body Set female valve seat, described conical head is connected with the socket of described valve seat, cable for measuring temperature and described taper Head is fixed by socket.
Preferably, be provided with between described conical head and described cable for measuring temperature that waterproof type is different first Waterproof layer, the second waterproof layer and the 3rd waterproof layer.
Preferably, described first waterproof layer is interference rubber ring, and described second waterproof layer is strong sealing cream, Described 3rd waterproof layer is hydro-expansive rubber non-return ring.
Preferably, described upper distributive pipe and described lower distributive pipe are arranged ringwise.
Preferably, the bottom of described tank body is provided with manhole, is equipped with maintenance cat ladder, is located at tank inside and outside tank body The two ends of the maintenance cat ladder in internal portion are respectively close to described upper water distributor and described lower water-dispensing device.
Preferably, it is additionally provided with heat-insulation layer outside described tank body.
Preferably, the top of described tank body is provided with air bleeding valve, and bottom is provided with sewage draining exit.
Below the principle of preceding solution, effect etc. are illustrated:
1, when cold-storage, the hot water at tank body top is through the upper distributive pipe of upper water distributor, then through hot water pipeline Enter chilled water water return pipeline;Chilled water through refrigeration host computer refrigeration passes through cold water pipes, enters back into down The lower distributive pipe of water-locator, finally by lower air diffuser even into tank base.In process of cool, Chilled water presents piston type shifting from the bottom up in tank base, it is possible to reduce the mixing of hot and cold water to greatest extent Degree.
When letting cool, the cold water of tank base is through the lower distributive pipe of lower water-dispensing device, then enters through cold water pipes Enter chilled water water return pipeline;Hot water after end heat exchange processes is assigned to upper water distributor by hot water pipeline Upper distributive pipe, finally by upper air diffuser even into the top of tank body.In discharging cold course, chilled water exists Piston type shifting from top to bottom is presented, it is possible to reduce the mixing of hot and cold water to greatest extent in tank body.
By tank body and upper water distributor, effective combination of lower water-dispensing device, i.e. by changing upper air diffuser, Shang Fenshui Pipe, lower air diffuser and the water (flow) direction of lower distributive pipe, it is achieved cold-storage or let cool.Need not rely on the chi of tank body Very little feature realizes cold-storage and lets cool, and ratio of height to diameter example is reasonable, it is not required that use plate type heat exchanger to carry out heat exchange, And then low cost, and superfluous calamity safety is high.
Described pressure-bearing meet an urgent need cooling apparatus can batch micro operations as off-the-shelf hardware, after producer is completed transport Install, not by site influence toward project place.And can be according to the different Demand Design not consubstantiality of user Long-pending pressure-bearing cold accumulator and quantity, use wide, strong modularity.
2, the two ends up and down of the Hollow Pillar in tank body connect with upper water distributor, lower water distributor, and pass through respectively Division board is divided into two sections, and two sections connect with hot water pipeline, cold water pipes respectively;Hollow Pillar is not only As the transfer passage of hot and cold water, and tank body can be played a supporting role.
3, detect in real time along tank body height vertical direction each layer chilled water temperature by arranging cable for measuring temperature, and then Effective cold storage capacity in real-time monitoring of tank body and the effectively amount of letting cool.
4, by the way of conical head with valve seat threaded engagement, cable for measuring temperature is installed with tank body, it is simple to maintenance Change cable for measuring temperature.The cone-shaped top surface of conical head can play fastening effect with cable for measuring temperature, uses conical head energy Enough effectively alleviations and the pressure of cable for measuring temperature junction.
5, by three sealing waterproof layer sealed shell of tank of different waterproof forms, make cable for measuring temperature with tank body even The pressure of 2.0Mpa can bear in the place of connecing.
6, upper air diffuser, lower air diffuser all use the mode of annular same journey isostatic pressed to arrange, and effectively guarantee Chilled water can uniformly pass in and out air diffuser, lower air diffuser, and water distribution is uniform.
Accompanying drawing explanation
Fig. 1 is that the pressure-bearing described in the embodiment of the present invention is met an urgent need the structural representation of cooling apparatus;
Fig. 2 is that the pressure-bearing described in the embodiment of the present invention is met an urgent need the top view of cooling apparatus cross section;
Fig. 3 is that the pressure-bearing described in the embodiment of the present invention is met an urgent need the upward view of cooling apparatus;
Fig. 4 be described in the embodiment of the present invention seal conical head and cable for measuring temperature coordinate figure.
Description of reference numerals:
100, tank body, 110, upper water distributor, 112, upper air diffuser, 114, upper distributive pipe, 120, lower cloth Hydrophone, 122, lower air diffuser, 124, lower distributive pipe, 130, Hollow Pillar, 132, division board, 140, Hot water pipeline, 142, cold water pipes, 150, cable for measuring temperature, 152, conical head, the 153, first waterproof layer, 154, the second waterproof layer, the 155, the 3rd waterproof layer, 160, manhole, 161, interior maintenance cat ladder, 162, outer Maintenance cat ladder, 164, sewage draining exit, 166, air bleeding valve.
Detailed description of the invention
Below embodiments of the invention are described in detail:
The cooling apparatus as it is shown in figure 1, a kind of pressure-bearing is met an urgent need, includes tank body 100, is fixed on described tank body The upper water distributor 110 on 100 tops, the lower water-dispensing device 120 of bottom;Described upper water distributor 110 includes and dissipates Stream device 112 and upper distributive pipe 114, described lower water-dispensing device 120 includes lower air diffuser 122 and lower distributive pipe 124, described upper distributive pipe 114 is connected by Hollow Pillar 130 with described lower distributive pipe 124, and described sky Heart pillar 130 is divided into two sections by division board 132, and the bottom of Hollow Pillar 130 epimere is by heat Waterpipe 140 connects with chilled water water return pipeline, and cold water pipes is passed through at the top of Hollow Pillar 130 hypomere 142 connect with chilled water outlet conduit.The epimere of Hollow Pillar 130 and hypomere can be respectively as hot water, cold water Conveyance conduit, control simultaneously water upper air diffuser 112, on distributive pipe 114, lower air diffuser 122 and lower point The direction of water pipe 124 realizes cold-storage and lets cool.
When cold-storage, the hot water at tank body 100 top enters through the upper air diffuser 112 of upper water distributor 110 Distributive pipe 114, enters back into the epimere of Hollow Pillar 130, eventually passes hot water pipeline 140 and enters chilled water Water return pipeline;Chilled water after external refrigeration main frame freezes, by cold water pipes 142, enters back into lower cloth The lower distributive pipe 124 of hydrophone 120, finally by lower air diffuser 122 even into bottom tank body 100.? In process of cool, chilled water presents piston type shifting from the bottom up bottom tank body 100, it is possible to greatest extent Reduce the mixability of hot and cold water.
When letting cool, the cold water bottom tank body 100 is under the lower air diffuser 122 of lower water-dispensing device 120 enters Distributive pipe 124, enters back into the hypomere of Hollow Pillar 130, eventually passes cold water pipes 142 and enters chilled water Outlet conduit;Hot water after end heat exchange processes is assigned to upper water distributor 110 by hot water pipeline 140 Upper distributive pipe 114, finally by upper air diffuser 112 even into the top of tank body 100.In discharging cold course, Chilled water presents piston type shifting from top to bottom in tank body 100, it is possible to reduce hot and cold water to greatest extent Mixing.
Upper distributive pipe 114 and lower distributive pipe 124 are preferably supported by the present embodiment by Hollow Pillar 130, By increasing suspension rod or support bar, upper distributive pipe 114 and lower distributive pipe 124 can also be supported, strengthen Fixed effect.
As in figure 2 it is shown, upper water distributor 110 is identical with the structure of lower water-dispensing device 120, it is symmetrical arranged, this reality Execute example as a example by upper water distributor 110.Described upper distributive pipe 114 is arranged ringwise, and upper air diffuser 112 is from upper The center of distributive pipe 114 dissipates setting, and the upper distributive pipe 114 of end outermost end connects, and makes distributive pipe 114 is that same journey isostatic pressed is arranged in tank body 100, it is ensured that water distribution is uniform.The two ends up and down of Hollow Pillar 130 Connect with upper distributive pipe 114, the center of lower distributive pipe 124 respectively.Upper distributive pipe 114 and lower distributive pipe 124 Material be preferably steel.
Being axially arranged with cable for measuring temperature 150 along described tank body 100, the upper end of described cable for measuring temperature 150 is by sealing Pedestal is fixing with the upper end of tank body 100 to be connected, and cable for measuring temperature 150 is provided with multiple temperature probe, supervises in real time Survey the water temperature in tank body 100.
Described sealing base includes that setting of being fixed on tank body is female with externally threaded conical head 152 Valve seat, cable for measuring temperature 150 is fixed by socket with described conical head 152, the external screw thread of described conical head 152 with Cable for measuring temperature 150 is fixed on tank body 100 by the screw-internal thread fit of valve seat, it is simple to maintenance is changed.Such as Fig. 4 Shown in, it is provided with the first waterproof layer 153, second between described conical head 152 and cable for measuring temperature 150 waterproof Layer 154 and the 3rd waterproof layer 155, the first waterproof layer the 153, second waterproof layer 154 and the 3rd waterproof layer 155 Waterproof type different.It is preferably provided with four layer of first waterproof layer 153, uses the mode of interference rubber ring Carry out sealing waterproof;It is provided with two-layer the second waterproof layer 154, uses the mode of strong sealing cream to carry out sealing anti- Water;3rd waterproof layer 155 is hydro-expansive rubber non-return ring.First waterproof layer the 153, second waterproof layer 154 And the 3rd waterproof layer 155 use interval mode arrange, head and the afterbody of conical head 152 were respectively equipped with It is full of rubber ring 153, is strong sealing cream 154 or hydro-expansive rubber non-return between two interference rubber rings 153 Ring 155, and hydro-expansive rubber non-return ring 155 be located at middle part.The design of conical head 152, decreases interference Rubber ring contacts the area of water, and inverted cone curved surface can play the most slow pressure effect, further, since survey Temperature cable 150 is flexible, and the front end of taper can coordinate with cable for measuring temperature plays good fastening effect.
As shown in Figures 1 and 3, the bottom of described tank body 100 is provided with manhole 160, in being provided with in tank body 100 Maintenance cat ladder 161, tank body 100 is externally provided with outer maintenance cat ladder 162, and described interior maintenance cat ladder 161 two ends are respectively Near described upper water distributor 110 and described lower water-dispensing device 120.Interior maintenance cat ladder 161 is mainly used in overhauling tank body Used by 100 inner parts, when upper air diffuser 112 is overhauled with lower air diffuser 122, available upper distributive pipe 114 build inspection platform with lower distributive pipe 124.
It is additionally provided with heat-insulation layer outside described tank body 100.Heat-insulation layer uses rubber and plastic collodion or polyurethane foam, energy Enough effectively guarantee that pressure-bearing meets an urgent need 24 hours refrigerating loss amounts of cooling apparatus less than the 3% of cold storage capacity.Described tank body The lower end of 100 is provided with sewage draining exit 164.
Embodiment described above only have expressed the detailed description of the invention of the present invention, and it describes more concrete and detailed, But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and Improving, these broadly fall into protection scope of the present invention.

Claims (7)

1. a pressure-bearing is met an urgent need cooling apparatus, it is characterised in that includes tank body, is fixed on described tank body The upper water distributor in portion, the lower water-dispensing device of bottom, described upper water distributor includes air diffuser and upper distributive pipe, Described upper distributive pipe is connected with chilled water water return pipeline by hot water pipeline, and described lower water-dispensing device includes lower dissipating Stream device and lower distributive pipe, described lower distributive pipe is connected with chilled water outlet conduit by cold water pipes;At cold-storage Or when letting cool, chilled water or hot water on described air diffuser, on distributive pipe, lower air diffuser, lower distributive pipe Water (flow) direction is different;Being axially arranged with cable for measuring temperature along described tank body, the upper end of described cable for measuring temperature is by sealing Pedestal is fixing with the upper end of described tank body to be connected, and cable for measuring temperature is provided with multiple temperature probe, described sealing base Seat includes with externally threaded conical head, and be fixed on described tank body sets female valve seat, described The socket of conical head and described valve seat is connected, and cable for measuring temperature is fixed by socket with described conical head, described conical head and The first different waterproof layer of waterproof type, the second waterproof layer and the 3rd it is provided with anti-between described cable for measuring temperature Water layer.
Pressure-bearing the most according to claim 1 is met an urgent need cooling apparatus, it is characterised in that described upper distributive pipe Connected by Hollow Pillar with described lower distributive pipe, described Hollow Pillar by division board be divided into respectively with heat Two sections of waterpipe, cold water pipes connection.
Pressure-bearing the most according to claim 1 is met an urgent need cooling apparatus, it is characterised in that described first waterproof Layer is interference rubber ring, and described second waterproof layer is strong sealing cream, and described 3rd waterproof layer is water-swellable Rubber non-return ring.
Pressure-bearing the most according to claim 1 is met an urgent need cooling apparatus, it is characterised in that described upper distributive pipe And described lower distributive pipe is arranged ringwise.
Pressure-bearing the most according to claim 1 is met an urgent need cooling apparatus, it is characterised in that under described tank body Portion is provided with manhole, is equipped with maintenance cat ladder inside and outside tank body, is located at the two ends of maintenance cat ladder of tank interior respectively Near described upper water distributor and described lower water-dispensing device.
Pressure-bearing the most according to claim 5 is met an urgent need cooling apparatus, it is characterised in that outside described tank body also It is provided with heat-insulation layer.
Pressure-bearing the most according to claim 6 is met an urgent need cooling apparatus, it is characterised in that the top of described tank body End is provided with air bleeding valve, and bottom is provided with sewage draining exit.
CN201310535774.XA 2013-11-01 2013-11-01 Pressure-bearing is met an urgent need cooling apparatus Active CN103574810B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310535774.XA CN103574810B (en) 2013-11-01 2013-11-01 Pressure-bearing is met an urgent need cooling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310535774.XA CN103574810B (en) 2013-11-01 2013-11-01 Pressure-bearing is met an urgent need cooling apparatus

Publications (2)

Publication Number Publication Date
CN103574810A CN103574810A (en) 2014-02-12
CN103574810B true CN103574810B (en) 2016-11-02

Family

ID=50047154

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310535774.XA Active CN103574810B (en) 2013-11-01 2013-11-01 Pressure-bearing is met an urgent need cooling apparatus

Country Status (1)

Country Link
CN (1) CN103574810B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235983A (en) * 2014-09-17 2014-12-24 中山市蓝水能源科技发展有限公司 Current stabilizer in chilled water storage system
CN104296338B (en) * 2014-10-28 2017-10-27 北京百度网讯科技有限公司 Water charging system and method
CN105444315B (en) * 2016-01-12 2018-12-14 上海瀚显空调节能技术有限公司 A kind of reticular structure water distributor for cylindric cold-storage tank
CN106767075B (en) * 2016-12-28 2018-10-19 中建安装工程有限公司 The modular construction method of water distribution system in a kind of cold-storage tank
CN107144164A (en) * 2017-05-02 2017-09-08 哈尔滨汽轮机厂辅机工程有限公司 A kind of mesolimnion water tank water-distributing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201093654Y (en) * 2007-08-06 2008-07-30 唐东风 Water cold-storage apparatus for air conditioner
CN203147950U (en) * 2013-02-26 2013-08-21 上海华电源牌环境工程有限公司 Cold energy accumulation type emergent cooling device
CN203162410U (en) * 2013-01-28 2013-08-28 广州泰阳能源科技有限公司 Reversed return isostatic pressing multi-ring current distributing device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2850811B2 (en) * 1995-05-31 1999-01-27 ダイキン工業株式会社 Water heater
EP2196580B1 (en) * 2008-12-10 2014-03-05 Vossloh-Werke GmbH Screw-plug with conical shape for rail fastening systems
CN201697250U (en) * 2010-03-25 2011-01-05 同方节能工程技术有限公司 Naturally stratified open-type chilled water storage device
CN203797839U (en) * 2013-11-01 2014-08-27 广州泰阳能源科技有限公司 Pressure-bearing emergency cooling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201093654Y (en) * 2007-08-06 2008-07-30 唐东风 Water cold-storage apparatus for air conditioner
CN203162410U (en) * 2013-01-28 2013-08-28 广州泰阳能源科技有限公司 Reversed return isostatic pressing multi-ring current distributing device
CN203147950U (en) * 2013-02-26 2013-08-21 上海华电源牌环境工程有限公司 Cold energy accumulation type emergent cooling device

Also Published As

Publication number Publication date
CN103574810A (en) 2014-02-12

Similar Documents

Publication Publication Date Title
CN103574810B (en) Pressure-bearing is met an urgent need cooling apparatus
CN201697250U (en) Naturally stratified open-type chilled water storage device
CN201787682U (en) Water energy storage pressure-stabilized type fine water distributing system
CN203797839U (en) Pressure-bearing emergency cooling device
CN206014415U (en) A kind of anthraquinone fixed bed reactors for producing hydrogen peroxide
CN202582267U (en) Compressed air cooling device
CN209622459U (en) A kind of air accumulator
CN104633805A (en) Spiral naturally-layered water cold accumulation device
CN202309479U (en) Wind-power converter water cooling device
CN207478601U (en) A kind of slight drag high flow rate mixed bed is into water dispenser
CN201855585U (en) Liquid level controlling system for rectifying column
CN204950588U (en) Go out log raft pneumatic valve and pipeline machine
CN201133779Y (en) Multi-pool cold-storage system
CN210369149U (en) Safe automatic drainage system
CN206269664U (en) A kind of air cooling compressor middle part backwater collecting device
CN102008833B (en) Liquid level control system for rectification column
CN208678667U (en) Tail gas elution device
CN208170791U (en) Air-conditioning allocation unit between a kind of chilled water column
CN205461768U (en) Thick liquid sprays structure for desulfurizing tower is special
CN212109608U (en) Circulation system of cyclone well
CN205536307U (en) Water cold -storage air conditioning system's doublestage H type water -locator and catch basin
CN209076222U (en) Energy-efficient silt separating and filtering system
CN106567696A (en) Liquid feeding apparatus
CN105948470B (en) A kind of on-line cooling device suitable for glass container class product line
CN210425267U (en) Anti-freezing vertical coil pipe structure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant