CN215260043U - Heating system heated by solar energy and air energy - Google Patents

Heating system heated by solar energy and air energy Download PDF

Info

Publication number
CN215260043U
CN215260043U CN202120851155.1U CN202120851155U CN215260043U CN 215260043 U CN215260043 U CN 215260043U CN 202120851155 U CN202120851155 U CN 202120851155U CN 215260043 U CN215260043 U CN 215260043U
Authority
CN
China
Prior art keywords
hot water
heating
solar
energy
pipe
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
CN202120851155.1U
Other languages
Chinese (zh)
Inventor
方文朝
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.)
Nanjing Kezhifeng Energy Saving Technology Co ltd
Original Assignee
Nanjing Kezhifeng Energy Saving 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 Nanjing Kezhifeng Energy Saving Technology Co ltd filed Critical Nanjing Kezhifeng Energy Saving Technology Co ltd
Priority to CN202120851155.1U priority Critical patent/CN215260043U/en
Application granted granted Critical
Publication of CN215260043U publication Critical patent/CN215260043U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The utility model discloses a heating system utilizing solar energy and air energy for heating, which comprises a solar heat collecting pipe, a solar heat accumulator, a hot water circulating pipe and an air energy heat pump, wherein the air energy heat pump is connected with the solar heat accumulator, and the solar heat accumulator is provided with a temperature sensor and a water level sensor; the hot water circulating pipe comprises a first hot water circulating pipe arranged between the solar heat collecting pipe and the solar heat accumulator and a second hot water circulating pipe arranged between the solar heat accumulator and the solar heat collecting pipe. The utility model adopts the complementary heating of the double heat sources of the air energy heat pump and the solar heat accumulator, fully utilizes the solar energy and the air energy, and avoids the dependence of the traditional single solar water heater on the weather; the condition that the weather is rainy or the water temperature cannot meet the requirement is realized, the water in the solar heat accumulator is heated by the heat source in the air through the air-source heat pump, and hot water meeting the requirement for heating is provided.

Description

Heating system heated by solar energy and air energy
Technical Field
The utility model relates to a solar energy field especially relates to an utilize heating system of solar energy and air energy heating.
Background
With the development of social economy and the improvement of the living standard of people, the total energy consumption for heating and air conditioning is larger and larger, and the proportion of the total energy consumption in China is higher and higher. A large amount of energy (coal, electricity, natural gas and the like) is consumed, so that the situation of energy supply shortage is aggravated and an increasingly serious environmental problem is brought. Therefore, renewable energy sources such as geothermal energy and solar energy are vigorously developed and utilized as cold and heat sources of building heating and air conditioning, energy structure is optimized, conventional energy consumption and pollutant emission are reduced, and the method has long-term strategic significance and real urgent need for improving environmental quality and promoting social sustainable development and becomes a research hotspot of countries in the world in recent years.
The solar floor radiation heating system converts solar energy into heat energy, heats water from low temperature to high temperature, and meets the requirement of hot water in life and production. The traditional solar floor radiant heating system has certain problems, and whether any place exists, cloudy rain and snow weather and weather with insufficient sunshine in winter are available every year. In the climate, hot water is mainly heated by electricity, some products are heated by gas, more than 25% -50% of hot water needs to be heated completely by electricity every year, the areas are different, and the actual power consumption of the areas with much cloudy days is large. The air energy heat pump water heater can absorb low-temperature heat energy in air, the low-temperature heat energy is converted into high-temperature heat energy after being compressed, the high-temperature heat energy exchanges heat with cold water, and the water is heated from low temperature to high temperature so as to supply heat for use. The water heater has the characteristics of high efficiency and energy conservation, and water and electricity are thoroughly separated, multiple protections are arranged, and potential safety hazards are greatly reduced. In view of the above, there is a need to develop a heating system using solar energy and air energy for heating.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above problem that prior art exists, provide an utilize heating system of solar energy and air energy heating, the utility model discloses an air energy heat pump and the complementary heating of solar heat accumulator biheat source have fully utilized solar energy and air energy, have avoided the dependence of traditional single solar water heater to weather, realize overcast and rainy weather or the condition that the temperature can not reach the requirement, heat the water in the solar heat accumulator through the heat source in the air of air energy heat pump utilization, provide the hot water that satisfies the heating.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a heating system utilizing solar energy and air energy for heating comprises a solar heat collecting pipe, a solar heat accumulator, a hot water circulating pipe and an air energy heat pump, wherein the air energy heat pump is connected with the solar heat accumulator, and a temperature sensor and a water level sensor are arranged on the solar heat accumulator; the hot water circulating pipe is including setting up the first hot water circulating pipe between solar energy collection pipe and solar energy heat accumulator and setting up the second hot water circulating pipe between solar energy heat accumulator and solar energy collection pipe, be connected with ground heating coil and hot-water heating radiator on the second hot water circulating pipe, hot-water heating radiator includes the frame and sets up the radiating block of being connected with second hot water circulating pipe in the frame, be provided with a plurality of fin on the radiating block. By adopting the technical scheme, the first hot water circulating pipe is used for conveying hot water heated in the solar heat collecting pipe to the solar heat accumulator; the second hot water circulating pipe is used for conveying hot water in the solar heat accumulator to a ground heating pipe or a water heating radiator for heat dissipation and heating, and the hot water after heat dissipation and heating is conveyed to the solar heat collecting pipe through the second hot water circulating pipe after being cooled to be continuously heated, so that circulation is formed. Wherein, temperature sensor, level sensor and air can the heat pump be connected with the PLC controller.
Preferably, the second hot water circulating pipe is provided with a flow divider and a flow combiner, the flow divider is respectively connected with water inlets on the ground heating pipe and the water heating radiator through a hot water inlet pipeline, and the flow combiner is respectively connected with water outlets on the ground heating pipe and the water heating radiator through a hot water outlet pipeline. Adopt this technical scheme to in the hot water reposition of redundant personnel, make ground heating coil and hot-water heating radiator can heat or independent heating together.
Preferably, the hot water inlet pipe is further provided with a switch valve for controlling the hot water to flow into the floor heating pipe or the water heating radiator. By adopting the technical scheme, the heating device is used for controlling the heating of the ground heating pipe or the water heating radiator.
Preferably, the second hot water circulation pipe is further provided with a hot water circulation pump. By adopting the technical scheme, the hot water is driven to flow so as to heat.
Preferably, the radiating fin and the radiating block are integrally formed, and a circulating channel connected with a hot water inlet pipeline is arranged on the radiating block. By adopting the technical scheme, hot water can pass through the water heater conveniently.
Preferably, the heat radiating fin and the heat radiating block are made of copper or aluminum materials, and a heat radiating coating is arranged on the heat radiating fin and the heat radiating block. By adopting the technical scheme, the heat dissipation is facilitated, and the indoor temperature is improved.
Preferably, the solar heat accumulator comprises an inner container, an outer container and an outer shell, and heat-preservation phenolic foam is filled between the outer shell and the outer container. By adopting the technical scheme, the heat-preservation phenolic foam is used for preserving heat of the solar heat accumulator; the water in the outer container is used for heating; the water in the inner container is used for life; wherein, the inner container is made of heat-conducting stainless steel materials so as to facilitate the water temperature in the outer container to be transferred to the inner container.
Preferably, the solar heat accumulator is further provided with an exhaust pipe, and the exhaust pipe is respectively connected with the inner container and the outer container. By adopting the technical scheme, the inflatable air bag is used for exhausting air of the inner container and the outer container so as to prevent flatulence.
Preferably, the solar heat accumulator is provided with a water inlet and outlet pipeline, and the water inlet and outlet pipeline comprises a first water inlet and outlet pipe connected with the outer liner and a second water inlet and outlet pipe connected with the inner liner. By adopting the technical scheme, the first water inlet and outlet pipe is used for injecting water into the outer container or discharging the water in the outer container so as to be convenient for replacing a water source; the second water inlet and outlet pipe is used for injecting water into the inner container and introducing the water in the inner container into domestic water for bathing, washing face and the like.
The utility model has the advantages that:
1. the utility model adopts the complementary heating of the double heat sources of the air energy heat pump and the solar heat accumulator, fully utilizes the solar energy and the air energy, and avoids the dependence of the traditional single solar water heater on the weather; the condition that the weather is rainy or the water temperature cannot meet the requirement is realized, the water in the solar heat accumulator is heated by the heat source in the air through the air-source heat pump, and hot water meeting the requirement for heating is provided.
2. The utility model discloses inner bag life water tank and outer courage heating water tank have hot contact for respectively relatively independent water tank each other, and the hydrothermal quality of water of life does not receive the pollution of heat supply heating circulation quality of water, has guaranteed the hydrothermal supply of life.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented according to the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural diagram related to the present invention;
fig. 2 is a schematic view of the water heating radiator of the present invention.
The reference numbers in the figures illustrate: the solar heat collecting pipe 1, the solar heat accumulator 2, the hot water circulating pipe 3, the air energy heat pump 4, the temperature sensor 5, the water level sensor 6, the first hot water circulating pipe 7, the second hot water circulating pipe 8, the ground heating pipe 9, the water heating radiator 10, the flow divider 11, the flow combiner 12, the hot water inlet pipeline 13, the hot water outlet pipeline 14, the switch valve 15, the hot water circulating pump 16, the exhaust pipe 17, the first water inlet and outlet pipe 18, the second water inlet and outlet pipe 19, the frame 101, the radiating block 102, the radiating fins 103, the inner container 201, the outer container 202, the shell 203 and the foam 204.
Detailed Description
The invention is further described with reference to the accompanying drawings:
referring to fig. 1 to 2, a heating system using solar energy and air energy for heating comprises a solar heat collecting pipe 1, a solar heat accumulator 2, a hot water circulating pipe 3 and an air energy heat pump 4, wherein the air energy heat pump 4 is connected with the solar heat accumulator 2, and a temperature sensor 5 and a water level sensor 6 are arranged on the solar heat accumulator 2; the hot water circulating pipe 3 is including setting up the first hot water circulating pipe 7 between solar heat collection pipe 1 and solar heat accumulator 2 and setting up the second hot water circulating pipe 8 between solar heat accumulator 2 and solar heat collection pipe 1, be connected with ground heating coil 9 and hot-water heating radiator 10 on the second hot water circulating pipe 8, hot-water heating radiator 10 includes frame 101 and sets up the radiating block 102 of being connected with second hot water circulating pipe 8 in frame 101, be provided with a plurality of fin 103 on the radiating block 102. By adopting the technical scheme, the first hot water circulating pipe 7 is used for conveying hot water heated in the solar heat collecting pipe 1 to the solar heat accumulator 2; the second hot water circulation pipe 8 is used for sending hot water in the solar heat accumulator to a ground heating pipe 9 or a water heating radiator 10 for heat dissipation and heating, and the hot water after heat dissipation and heating is sent to the solar heat collection pipe 1 through the second hot water circulation pipe 8 for continuous heating after being cooled, so that circulation is formed. Wherein, temperature sensor 5, water level sensor 6 and air-source heat pump 4 are connected with the PLC controller.
Preferably, the second hot water circulation pipe 8 is provided with a flow divider 11 and a flow combiner 12, the flow divider 11 is connected with water inlets of the ground heating pipe 9 and the water heating radiator 10 through a hot water inlet pipe 13, and the flow combiner 12 is connected with water outlets of the ground heating pipe 9 and the water heating radiator 10 through a hot water outlet pipe 14. By adopting the technical scheme, hot water can be conveniently split, and the floor heating pipe 9 and the water heating radiator 10 can heat together or independently.
Preferably, the hot water inlet pipe 13 is further provided with an on-off valve 15 for controlling the inflow of hot water to the floor heating pipe 9 or the water heating radiator 10. By adopting the technical scheme, the heating control device is used for controlling the heating of the floor heating pipe 9 or the water heating radiator 10. The switch valve 15 may be an electromagnetic switch valve connected to the PLC controller.
Preferably, a hot water circulation pump 16 is further provided to the second hot water circulation pipe 8. By adopting the technical scheme, the hot water is driven to flow so as to heat. Wherein, the hot water circulating pump 16 is connected with the PLC controller.
Preferably, the heat sink 103 is integrally formed with the heat sink 102, and the heat sink 102 is provided with a circulation passage connected to the hot water inlet pipe 13. By adopting the technical scheme, hot water can pass through the water heater conveniently.
Preferably, the heat sink 103 and the heat sink 102 are made of copper or aluminum, and a heat dissipation coating is disposed on the heat sink 103 and the heat sink 102. By adopting the technical scheme, the heat dissipation is facilitated, and the indoor temperature is improved.
Preferably, the solar heat accumulator 2 comprises an inner container 201, an outer container 202 and a shell 203, and heat preservation phenolic foam 204 is filled between the shell 203 and the outer container 202. By adopting the technical scheme, the heat-preservation phenolic foam 204 is used for preserving heat of the solar heat accumulator 2; the water in the outer bladder 202 is used for heating; the water in the inner container is used for life; wherein, the inner container is made of heat-conducting stainless steel materials so as to facilitate the water temperature in the outer container to be transferred to the inner container.
Preferably, the solar heat accumulator 2 is further provided with an exhaust pipe 17, and the exhaust pipe 17 is connected with the inner container 201 and the outer container 202 respectively. By adopting the technical scheme, the air exhaust device is used for exhausting air of the inner container 201 and the outer container 202 to prevent flatulence.
Preferably, the solar heat accumulator 2 is provided with a water inlet and outlet pipeline, and the water inlet and outlet pipeline comprises a second water inlet and outlet pipe 19 connected with the outer container 202. By adopting the technical scheme, the first water inlet and outlet pipe is used for injecting water into the outer container or discharging the water in the outer container so as to be convenient for replacing a water source; the second water inlet and outlet pipe is used for injecting water into the inner container and introducing the water in the inner container into domestic water for bathing, washing face and the like.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
During the in-service use, when the sunlight shines at solar energy collection pipe, solar energy collection pipe turns into heat energy with light energy, the water that the heating runs through in solar energy collection pipe, the water after being heated in the solar energy collection pipe gets into the solar energy heat accumulator through first hot water circulating pipe, keep warm by the solar energy heat accumulator, hot water in the solar energy heat accumulator gets into ground heating coil or hot-water heating radiator through the shunt on the second hot water circulating pipe, make ground heating coil or hot-water heating radiator heat and heat up and give indoor heating, hot water becomes the warm water after the temperature reduction of heating, converge to second hot water circulating pipe through the cylinder manifold, send into solar energy collection pipe with the warm water by the second hot water circulating pipe and continue to heat, circulation heating according to this, the utilization ratio of the energy improves. In addition, the water level sensor who sets up is arranged in detecting the water level in outer courage and the inner bag to water injection in toward outer courage or the inner bag is opened to the solenoid valve on the PLC controller control inlet tube, and temperature sensor is arranged in detecting the temperature of the temperature in the outer courage, so that control the start-up or close of air energy heat pump through the PLC controller.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides an utilize heating system of solar energy and air energy heating, includes solar energy collection pipe (1), solar heat accumulator (2), hot water circulating pipe (3) and air energy heat pump (4), its characterized in that: the air energy heat pump (4) is connected with the solar heat accumulator (2), and a temperature sensor (5) and a water level sensor (6) are arranged on the solar heat accumulator (2); hot water circulating pipe (3) are including setting up first hot water circulating pipe (7) between solar energy collection pipe (1) and solar energy heat accumulator (2) and setting up second hot water circulating pipe (8) between solar energy heat accumulator (2) and solar energy collection pipe (1), be connected with ground heating coil (9) and radiator (10) on second hot water circulating pipe (8), hot-water radiator (10) include frame (101) and set up radiating block (102) of being connected with second hot water circulating pipe (8) in frame (101), be provided with a plurality of fin (103) on radiating block (102).
2. The heating system using solar energy and air energy for heating according to claim 1, wherein: be provided with shunt (11) and converge ware (12) on second hot water circulating pipe (8), shunt (11) are connected with the water inlet on ground heating coil (9) and hot-water heating radiator (10) respectively through hot water inlet channel (13), converge ware (12) pass through hot water outlet conduit (14) respectively with the delivery port on ground heating coil (9) and hot-water heating radiator (10).
3. The heating system using solar energy and air energy for heating according to claim 2, wherein: the hot water inlet pipeline (13) is also provided with a switch valve (15) for controlling the hot water to flow into the ground heating pipe (9) or the water heating radiator (10).
4. The heating system using solar energy and air energy for heating according to claim 1, wherein: and a hot water circulating pump (16) is also arranged on the second hot water circulating pipe (8).
5. The heating system using solar energy and air energy for heating according to claim 1, wherein: the radiating fin (103) and the radiating block (102) are integrally formed, and a circulating channel connected with the hot water inlet pipeline (13) is arranged on the radiating block (102).
6. The heating system using solar energy and air energy for heating according to claim 1, wherein: the radiating fins (103) and the radiating block (102) are made of copper or aluminum materials, and a layer of radiating coating is arranged on the radiating fins (103) and the radiating block (102).
7. The heating system using solar energy and air energy for heating according to claim 1, wherein: the solar heat accumulator (2) comprises an inner container (201), an outer container (202) and an outer container (203), wherein heat-insulating phenolic foam (204) is filled between the outer container (203) and the outer container (202).
8. The heating system using solar energy and air energy for heating according to claim 1, wherein: the solar heat accumulator (2) is further provided with an exhaust pipe (17), and the exhaust pipe (17) is connected with the inner container (201) and the outer container (202) respectively.
9. The heating system using solar energy and air energy for heating according to claim 1, wherein: the solar heat accumulator (2) is provided with a water inlet and outlet pipeline, and the water inlet and outlet pipeline comprises a first water inlet and outlet pipe (18) connected with the outer container (202) and a second water inlet and outlet pipe (19) connected with the inner container (201).
CN202120851155.1U 2021-04-25 2021-04-25 Heating system heated by solar energy and air energy Active CN215260043U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120851155.1U CN215260043U (en) 2021-04-25 2021-04-25 Heating system heated by solar energy and air energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120851155.1U CN215260043U (en) 2021-04-25 2021-04-25 Heating system heated by solar energy and air energy

Publications (1)

Publication Number Publication Date
CN215260043U true CN215260043U (en) 2021-12-21

Family

ID=79510687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120851155.1U Active CN215260043U (en) 2021-04-25 2021-04-25 Heating system heated by solar energy and air energy

Country Status (1)

Country Link
CN (1) CN215260043U (en)

Similar Documents

Publication Publication Date Title
CN203823873U (en) Solar heat pump heat accumulating and heating system
CN108029403A (en) Temp auto-controlled solar energy greenhouse system based on phase-change heat storage technology
CN201748636U (en) Solar compound heat pump unit
CN106439993A (en) Multi-energy-complementary heating and heat supply system of nearly zero energy consumption building in alpine region
CN203771537U (en) Wall heating system
CN204084946U (en) A kind of single evaporator type solar air source combined heat-pump
CN104764081B (en) Solar thermal electric combined supply ground heating system
CN106016825A (en) Solar and air source heat pump dual heat source tri-generation system
CN101865541B (en) Solar system
CN207990753U (en) A kind of novel integrated heating system
CN204404560U (en) A kind of separated type solar and air source heat pump hybrid system
CN206817589U (en) A kind of intelligent integrated heat utilization device using a variety of natural eco-friendly power sources
CN209744494U (en) Floor radiant heating system
CN205174537U (en) Novel solar thermal energy wind -heat water allies oneself with confession system
CN215260043U (en) Heating system heated by solar energy and air energy
CN214148126U (en) Solar composite heat pump heating system
CN203848366U (en) Solar air combination heat supply system for village and small town houses
CN210292432U (en) Distributed energy supply system based on heat pump technology
CN209782813U (en) Solar energy and electromagnetism boiler heating system with heat accumulation function
CN201569097U (en) Solar warming, cooling and hot water utilization system
CN112815550A (en) Anti-freezing and anti-overheating solar heat pump coupling heat supply system
CN202141192U (en) A water source heat pump water heating device combined with a solar water heater
CN101446437A (en) Wind energy-geothermal energy bilateral switching air conditioner
CN207184421U (en) A kind of BIPV system
CN202485092U (en) Air energy heat pump and solar energy complementary hot-water heating device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant