A kind of energy-saving graphene production equipment

文档序号:1753450 发布日期:2019-11-29 浏览:25次 中文

阅读说明:本技术 一种节能型石墨烯生产设备 (A kind of energy-saving graphene production equipment ) 是由 平步青 于 2019-09-19 设计创作,主要内容包括:本发明涉及一种节能型石墨烯生产设备,包括主体的形状为长方体,所述载物板水平固定在主体的内壁上,所述主体内设有烘干机构和辅助机构,所述烘干机构包括底箱、连接箱、连接管、抽气泵、加热棒、排气管和摩擦组件,所述摩擦组件包括摩擦盘、传动单元和至少两个摩擦杆,所述辅助机构包括滑动板和三个移动组件,所述滑动板与载物板平行,所述滑动板设置在载物板的远离底箱的一侧,所述滑动板与载物板之间设有间隙,所述滑动板与主体的内壁滑动且密封连接,所述滑动板上设有贯穿孔,所述贯穿孔与排气管同轴设置,该节能型石墨烯生产设备通过烘干机构实现了烘干石墨烯的功能,不仅如此,还通过辅助机构提高了烘干效率。(The present invention relates to a kind of energy-saving graphene production equipments, shape including main body is cuboid, the support board is horizontally fixed on the inner wall of main body, drying mechanism and auxiliary body are equipped in the main body, the drying mechanism includes under casing, connecting box, connecting tube, aspiration pump, heating rod, exhaust pipe and friction component, the friction component includes frictional disk, gear unit and at least two friction levers, the auxiliary body includes sliding panel and three moving assemblies, the sliding panel is parallel with support board, the side of the separate under casing of support board is arranged in the sliding panel, gap is equipped between the sliding panel and support board, the sliding panel and the inner wall of main body slidingly and sealingly connect, the sliding panel is equipped with through hole, the through hole and exhaust pipe are coaxially disposed, the energy-saving graphene production equipment is realized by drying mechanism The function of drying graphene moreover also improves drying efficiency by auxiliary body.)

1. a kind of energy-saving graphene production equipment, including main body (1) and support board (2), the shape of the main body (1) is rectangular Body, the support board (2) are horizontally fixed on the inner wall of main body (1), which is characterized in that dryer is equipped in the main body (1) Structure and auxiliary body;

The drying mechanism includes under casing (3), connecting box (4), connecting tube (5), aspiration pump (6), heating rod (7), exhaust pipe (8) And friction component, the under casing (3) are fixed on the bottom of main body (1), the connecting box (4) is fixed on the top of main body (1), institute The top for stating under casing (3) is connected to the bottom of main body (1), and the side of the connecting box (4) passes through connecting tube (5) and under casing (3) Side connection, the aspiration pump (6) is arranged on tracheae, and the aspiration pump (6) is fixed on main body (1), the connecting box (4) side of separate connecting tube (5) is equipped with air inlet, and the exhaust pipe (8) is vertical with support board (2), the connecting box (4) Top and bottom be equipped with mounting hole, the mounting hole and exhaust pipe (8) are coaxially disposed, the aperture of the mounting hole and exhaust The outer diameter for managing (8) is equal, and the exhaust pipe (8) sequentially passes through two mounting holes, and the exhaust pipe (8) and the inner wall of mounting hole are close It seals and is fixedly connected, the bottom end of the exhaust pipe (8) is connected to the top of main body (1), the exhaust pipe (8) and support board (2) Face setting, heating rod (7) setting is under casing (3), and the friction component setting is in exhaust pipe (8);

The friction component includes frictional disk (9), gear unit and at least two friction levers (10), the frictional disk (9) and row Tracheae (8) coaxial arrangement, the diameter of the frictional disk (9) are less than the internal diameter of exhaust pipe (8), the axis of the friction lever (10) with The axis of exhaust pipe (8) is vertical and intersects, and the friction lever (10) is circumferentially uniformly distributed centered on the axis of exhaust pipe (8), The exhaust pipe (8) is equipped at least two through-holes, and the through-hole and friction lever (10) correspond and are coaxially disposed, described logical The aperture in hole is equal with the diameter of friction lever (10), and the friction lever (10) passes through through-hole, the friction lever (10) and through-hole Inner wall is sealed and is fixedly connected, and the side of the close main body (1) of the friction lever (10) and frictional disk (9) is against the transmission Unit and frictional disk (9) are sequentially connected;

The auxiliary body includes sliding panel (11) and three moving assemblies, and the sliding panel (11) is parallel with support board (2), institute Sliding panel (11) setting is stated in the side of the separate under casing (3) of support board (2), between the sliding panel (11) and support board (2) Equipped with gap, the sliding panel (11) slidingly and sealingly connect with the inner wall of main body (1), and the sliding panel (11), which is equipped with, runs through Hole, the through hole and exhaust pipe (8) are coaxially disposed, and the moving assembly is circumferentially uniformly arranged centered on the axis of through hole In the side of the close connecting box (4) of sliding panel (11), the moving assembly drives slide plate plate along the axial movement of through hole.

2. energy-saving graphene production equipment as described in claim 1, which is characterized in that the gear unit includes transmission shaft (12), bearing (13) and flabellum (14), the transmission shaft (12) and exhaust pipe (8) are coaxially disposed, the transmission shaft (12) it is straight Diameter is less than the internal diameter of exhaust pipe (8), and the flabellum (14) is located at the side of the separate under casing (3) of exhaust pipe (8), the flabellum (14) it is mounted on the top of transmission shaft (12), the frictional disk (9) is mounted on the bottom end of transmission shaft (12), the bearing (13) Inner ring is mounted on transmission shaft (12), and the outer ring of the bearing (13) is fixed on the inner wall of exhaust pipe (8).

3. energy-saving graphene production equipment as described in claim 1, which is characterized in that the moving assembly includes fixing pipe (15), piston (16) and spring (17), the fixing pipe (15) is parallel with exhaust pipe (8), the top of the fixing pipe (15) with It sealed bottom in main body (1) and is fixedly connected, the piston (16) matches with fixing pipe (15), and the piston (16) is mounted on In fixing pipe (15), the inner wall of the piston (16) and fixing pipe (15) is sealed and is slidably connected, and spring (17) setting exists In fixing pipe (15), the spring (17) is located between the top in piston (16) and main body (1), and the piston (16) passes through bullet Spring (17) is connect with the top in main body (1).

4. energy-saving graphene production equipment as claimed in claim 3, which is characterized in that on the inner wall of the fixing pipe (15) It is coated with stop-leak compound.

5. energy-saving graphene production equipment as claimed in claim 3, which is characterized in that there are three being set in the main body (1) Limited block (18), the limited block (18) and fixing pipe (15) correspond, and the limited block (18) is located at sliding panel (11) Side far from connecting box (4), the limited block (18) are fixed on the inner wall of main body (1), the limited block (18) and main body (1) the distance between interior bottom is less than the distance between carrying disk and main body (1) interior bottom.

6. energy-saving graphene production equipment as described in claim 1, which is characterized in that be equipped with strainer in the air inlet.

7. energy-saving graphene production equipment as described in claim 1, which is characterized in that the under casing (3) is equipped with anti-corrosion Zinc coat.

8. energy-saving graphene production equipment as described in claim 1, which is characterized in that the friction lever (10) is equipped with Angle.

9. energy-saving graphene production equipment as described in claim 1, which is characterized in that the periphery of the exhaust pipe (8) is set There is heat conductive silica gel.

10. energy-saving graphene production equipment as described in claim 1, which is characterized in that the periphery of the connecting tube (5) is set There is heat insulation foam.

Technical field

The present invention relates to field of graphene, in particular to a kind of energy-saving graphene production equipment.

Background technique

He Mofa is one of the mode of graphene preparation, is that will form graphite oxide ultrasonic disperse into the water equal Even dispersion, mass concentration are the graphene oxide solution of 0.25g/L~1g/L, then are added dropwise into the graphene oxide solution The ammonium hydroxide that mass concentration is 28%;It dissolves reduce agent in water, forms the aqueous solution that mass concentration is 0.25g/L~2g/L;It will match The graphene oxide solution and reducing agent aqueous solution of system are uniformly mixed, and gained mixed solution is placed under the conditions of oil bath and is stirred, instead After answering, graphene will be obtained after mixture filtration washing, drying.

Existing drying equipment is carrying out graphene to need a large amount of electric energy to be converted into heat in drying course, energy conservation Property is poor, and moreover, existing drying equipment drying mode is more single, and drying efficiency is lower.

Summary of the invention

The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of energy-saving graphene Production equipment.

The technical solution adopted by the present invention to solve the technical problems is: a kind of energy-saving graphene production equipment, including The shape of main body is cuboid, and the support board is horizontally fixed on the inner wall of main body, be equipped in the main body drying mechanism and Auxiliary body;

The drying mechanism includes under casing, connecting box, connecting tube, aspiration pump, heating rod, exhaust pipe and friction component, the bottom Case is fixed on the bottom of main body, and the connecting box is fixed on the top of main body, and the top of the under casing is connected to the bottom of main body, The side of the connecting box is connected to by connecting tube with the side of under casing, and the aspiration pump is arranged on tracheae, the aspiration pump It is fixed in main body, the side of the separate connecting tube of the connecting box is equipped with air inlet, and the exhaust pipe is vertical with support board, institute It states and is equipped with mounting hole at the top and bottom of connecting box, the mounting hole and exhaust pipe are coaxially disposed, the aperture of the mounting hole Equal with the outer diameter of exhaust pipe, the exhaust pipe sequentially passes through two mounting holes, the inner wall sealing of the exhaust pipe and mounting hole And be fixedly connected, the bottom end of the exhaust pipe is connected to the top of main body, and the exhaust pipe and support board face are arranged, described to add Hot pin is arranged under casing, and the friction component is arranged in exhaust pipe;

The friction component includes frictional disk, gear unit and at least two friction levers, and the frictional disk is coaxially set with exhaust pipe It sets, the diameter of the frictional disk is less than the internal diameter of exhaust pipe, and the axis of the friction lever and the axis of exhaust pipe are vertical and intersect, The friction lever is circumferentially uniformly distributed centered on the axis of exhaust pipe, and the exhaust pipe is equipped at least two through-holes, described Through-hole and friction lever are corresponded and are coaxially disposed, and the aperture of the through-hole and the diameter of friction lever are equal, and the friction lever is worn Through-hole is crossed, the friction lever is sealed and is fixedly connected, the one of the close main body of the friction lever and frictional disk with the inner wall of through-hole Side is against the gear unit is connect with frictional disc drive;

The auxiliary body includes sliding panel and three moving assemblies, and the sliding panel is parallel with support board, and the sliding panel is set It sets in the side of the separate under casing of support board, gap is equipped between the sliding panel and support board, the sliding panel and main body Inner wall slidingly and sealingly connects, and the sliding panel is equipped with through hole, and the through hole and exhaust pipe are coaxially disposed, the movement Component is circumferentially uniformly arranged on the side of the close connecting box of sliding panel centered on the axis of through hole, and the moving assembly drives Slide plate plate is moved along the axial movement of through hole.

Preferably, the gear unit includes transmission shaft, bearing and flabellum, the biography in order to drive frictional disk to rotate Moving axis and exhaust pipe are coaxially disposed, and the diameter of the transmission shaft is less than the internal diameter of exhaust pipe, and the flabellum is located at the remote of exhaust pipe Side under casing, the flabellum are mounted on the top of transmission shaft, and the frictional disk is mounted on the bottom end of transmission shaft, the bearing Inner ring be mounted on transmission shaft, the outer ring of the bearing is fixed on the inner wall of exhaust pipe.

Preferably, in order to drive sliding panel mobile, the moving assembly includes fixing pipe, piston and spring, described solid Fixed pipe is parallel with exhaust pipe, the top of the fixing pipe with lead intracorporal sealed bottom and be fixedly connected, the piston and fixation Pipe matching, the piston are mounted in fixing pipe, and the inner wall of the piston and fixing pipe is sealed and is slidably connected, and the spring is set It sets in fixing pipe, the spring is located between piston and main intracorporal top, and the piston passes through spring and main intracorporal top Portion's connection.

Preferably, being coated with stop-leak compound on the inner wall of the fixing pipe to reduce the gap between fixing pipe and piston.

Preferably, in order to avoid sliding panel and support board are against setting that there are three limited block, the limits in the main body Block and fixing pipe correspond, and the limited block is located at the side of the separate connecting box of sliding panel, and the limited block is fixed on master On the inner wall of body, the distance between bottom is less than the distance between bottom in carrying disk and main body in the limited block and main body.

Preferably, it is dust-proof in order to realize, strainer is equipped in the air inlet.

Preferably, in order to extend the service life of under casing, the under casing is equipped with anticorrosion galvanizing layer.

Preferably, the friction lever is equipped with chamfering for the ease of the installation of friction lever.

Preferably, in order to improve heat-transfer rate, the periphery of the exhaust pipe is equipped with heat conductive silica gel.

Preferably, in order to reduce the loss of heat, the periphery of the connecting tube is equipped with heat insulation foam.

The invention has the advantages that the energy-saving graphene production equipment realizes drying graphene by drying mechanism Function, compared with existing drying mechanism, which realizes energy-efficient effect by the recycling of heat, together When, utilization also is realized by frictional heat generation and to heat, is further improved energy-saving effect, moreover, is also passed through auxiliary machine Structure improves drying efficiency, and compared with existing auxiliary body, which, as driving force, is driven by heat without electric power It is dynamic, more environmentally-friendly energy conservation, meanwhile, heat is collected by drying mechanism, the raising speed of heat in main body can be improved, further Improve drying efficiency.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples.

Fig. 1 is the structural schematic diagram of energy-saving graphene production equipment of the invention;

Fig. 2 is the cross-sectional view of energy-saving graphene production equipment of the invention;

Fig. 3 is the structural schematic diagram of the friction component of energy-saving graphene production equipment of the invention;

Fig. 4 is the structural schematic diagram of the moving assembly of energy-saving graphene production equipment of the invention;

In figure: 1. main bodys, 2. support boards, 3. under casings, 4. connecting boxs, 5. connecting tubes, 6. aspiration pumps, 7. heating rods, 8. exhaust pipes, 9. frictional disk, 10. friction levers, 11. sliding panels, 12. transmission shafts, 13. bearings, 14. flabellums, 15. fixing pipes, 16. pistons, 17. Spring, 18. limited blocks.

Specific embodiment

In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.

As shown in Figure 1, a kind of energy-saving graphene production equipment, including main body 1 and support board 2, the shape of the main body 1 For cuboid, the support board 2 is horizontally fixed on the inner wall of main body 1, is equipped with drying mechanism and auxiliary machine in the main body 1 Structure;

Container equipped with graphene is placed on support board 2, here, the effect that drying mechanism is arranged is to realize drying graphene Function, be arranged auxiliary body effect be improve drying efficiency.

As Figure 2-3, the drying mechanism includes under casing 3, connecting box 4, connecting tube 5, aspiration pump 6, heating rod 7, row Tracheae 8 and friction component, the under casing 3 are fixed on the bottom of main body 1, and the connecting box 4 is fixed on the top of main body 1, described The top of under casing 3 is connected to the bottom of main body 1, and the side of the connecting box 4 is connected to by connecting tube 5 with the side of under casing 3, institute It states aspiration pump 6 to be arranged on tracheae, the aspiration pump 6 is fixed on the body 1, the side of the separate connecting tube 5 of the connecting box 4 Equipped with air inlet, the exhaust pipe 8 is vertical with support board 2, and the top and bottom of the connecting box 4 are equipped with mounting hole, described Mounting hole and exhaust pipe 8 are coaxially disposed, and the aperture of the mounting hole is equal with the outer diameter of exhaust pipe 8, and the exhaust pipe 8 is successively worn Two mounting holes are crossed, the exhaust pipe 8 is sealed and is fixedly connected with the inner wall of mounting hole, the bottom end of the exhaust pipe 8 and main body 1 Top connection, the exhaust pipe 8 is arranged with 2 face of support board, and the heating rod 7 is arranged under casing 3, the friction component It is arranged in exhaust pipe 8;

The friction component includes frictional disk 9, gear unit and at least two friction levers 10, and the frictional disk 9 and exhaust pipe 8 are same Axis setting, the diameter of the frictional disk 9 are less than the internal diameter of exhaust pipe 8, and the axis of the friction lever 10 and the axis of exhaust pipe 8 hang down Straight and intersection, the friction lever 10 are circumferentially uniformly distributed centered on the axis of exhaust pipe 8, and the exhaust pipe 8 is equipped at least Two through-holes, the through-hole and friction lever 10 are corresponded and are coaxially disposed, the aperture of the through-hole and the diameter of friction lever 10 Equal, the friction lever 10 passes through through-hole, and the friction lever 10 is sealed and is fixedly connected, the friction lever 10 with the inner wall of through-hole Side with the close main body 1 of frictional disk 9 is against the gear unit and frictional disk 9 are sequentially connected;

The auxiliary body includes sliding panel 11 and three moving assemblies, and the sliding panel 11 is parallel with support board 2, the sliding The side of the separate under casing 3 of support board 2 is arranged in plate 11, and gap, the sliding are equipped between the sliding panel 11 and support board 2 Plate 11 is slidingly and sealingly connect with the inner wall of main body 1, and the sliding panel 11 is equipped with through hole, the through hole and exhaust pipe 8 Coaxial arrangement, the moving assembly are circumferentially uniformly arranged on the close connecting box 4 of sliding panel 11 centered on the axis of through hole Side, moving assembly driving slide plate plate along through hole axial movement.

It is run by aspiration pump 6, after entering external air in connecting box 4 by air inlet, then from the conveying of connecting tube 5 To under casing 3, in the air delivery to main body 1 under casing 3 after, finally from exhaust pipe 8 be discharged, run by heating rod 7, make bottom The temperature of air increases in case 3, so that the temperature for entering air in main body 1 be made to increase, realizes the function of drying graphene, phase Between, it is discharged by the air in main body 1 from exhaust pipe 8, exhaust pipe 8 is made to absorb the heat in air again to the sky in connecting box 4 Gas is heated, and the recycling of heat is realized, and has saved the energy, meanwhile, wind-force is generated by flowing of the air in exhaust pipe 8 And gear unit driving frictional disk 9 is rotated, by between frictional disk 9 and friction lever 10, friction generates heat and the company of being transferred to It connects in case 4, the air in connecting box 4 is heated, energy conservation is furthermore achieved, also, pass through the liter of temperature in main body 1 Height makes moving assembly drive sliding panel 11 mobile towards close 2 direction of support board as driving force by heat, to make loading Gap between plate 2 and sliding panel 11 reduces, because the amount that the air in main body 1 is flowed out out of through hole be it is certain, to make Flow velocity of the air between sliding panel 11 and support board 2 is accelerated, because water evaporation rate is directly proportional to the flow velocity of air, it can The evaporation rate for accelerating moisture in graphene on support board 2, to improve drying efficiency.

Preferably, the gear unit includes transmission shaft 12, bearing 13 and flabellum 14 in order to drive frictional disk 9 to rotate, The transmission shaft 12 is coaxially disposed with exhaust pipe 8, and the diameter of the transmission shaft 12 is less than the internal diameter of exhaust pipe 8, the flabellum 14 Positioned at the side of the separate under casing 3 of exhaust pipe 8, the flabellum 14 is mounted on the top of transmission shaft 12, and the frictional disk 9 is mounted on The inner ring of the bottom end of transmission shaft 12, the bearing 13 is mounted on transmission shaft 12, and the outer ring of the bearing 13 is fixed on exhaust pipe 8 Inner wall on.

Rotate flabellum 14 by wind-force, the rotation of flabellum 14 drives transmission shaft 12 under the supporting role of bearing 13 to rub Disk 9 is wiped to rotate.

As shown in figure 4, the moving assembly includes fixing pipe 15, piston 16 and spring 17, the fixing pipe 15 and exhaust Pipe 8 is parallel, the top of the fixing pipe 15 and the sealed bottom in main body 1 and is fixedly connected, the piston 16 and fixing pipe 15 Matching, the piston 16 are mounted in fixing pipe 15, and the inner wall of the piston 16 and fixing pipe 15 is sealed and is slidably connected, described Spring 17 is arranged in fixing pipe 15, and the spring 17 is located between the top in piston 16 and main body 1, and the piston 16 passes through Spring 17 is connect with the top in main body 1.

Temperature in main body 1 drives in fixing pipe 15, thus make piston 16 in fixing pipe 15 and 1 inner top of main body it Between air heats expand and increase air pressure, piston 16 drives sliding panel 11 towards close to 2 side of support board under the influence of air pressure To movement, and spring 17 is stretched, when temperature reduces in main body 1, makes piston 16 under the elastic reaction of air pressure and spring 17 It drives sliding panel 11 to reset, avoids the distance between sliding panel 11 and support board 2 too small and be not easy to take out graphene.

Preferably, being coated on the inner wall of the fixing pipe 15 to reduce the gap between fixing pipe 15 and piston 16 Stop-leak compound.

The effect of stop-leak compound is the gap reduced between fixing pipe 15 and piston 16, improves leakproofness.

Preferably, in order to avoid sliding panel 11 and support board 2 are against setting that there are three limited block 18, institutes in the main body 1 It states limited block 18 and fixing pipe 15 corresponds, the limited block 18 is located at the side of the separate connecting box 4 of sliding panel 11, described Limited block 18 is fixed on the inner wall of main body 1, and the distance between the limited block 18 and bottom in main body 1 are less than carrying disk and master The distance between bottom in body 1.

The effect of limited block 18 is to avoid between sliding panel 11 and support board 2 distance too small and cause to squeeze to graphene, Piston 16 is also possible to prevent simultaneously excessively to separate towards close to the movement of 2 direction of support board with fixing pipe 15.

Preferably, it is dust-proof in order to realize, strainer is equipped in the air inlet.

The effect of strainer is that the dust in air is avoided to enter in connecting box 4, plays dust-proof effect.

Preferably, in order to extend the service life of under casing 3, the under casing 3 is equipped with anticorrosion galvanizing layer.

The effect of anticorrosion galvanizing layer is the antirust ability for promoting under casing 3, extends the service life of under casing 3.

Preferably, the friction lever 10 is equipped with chamfering for the ease of the installation of friction lever 10.

The effect of chamfering is the bore reduced when friction lever 10 passes through through-hole, plays the effect being easily installed.

Preferably, in order to improve heat-transfer rate, the periphery of the exhaust pipe 8 is equipped with heat conductive silica gel.

The effect of heat conductive silica gel is the speed in the air in the heat transfer to connecting box 4 improved on exhaust pipe 8, is improved Heat-transfer rate.

Preferably, in order to reduce the loss of heat, the periphery of the connecting tube 5 is equipped with heat insulation foam.

The effect of heat insulation foam is to reduce the loss of the heat in connecting tube 5, plays the effect of heat preservation.

The equipment during use, heats the air under casing 3 by heating rod 7 and is delivered in main body 1, play baking The function of graphene in dry main body 1, meanwhile, the air in main body 1 is discharged from exhaust pipe 8, also, by absorbing on exhaust pipe 8 Heat the air in connecting box 4 is heated, realize the recycling of heat, saved the energy, meanwhile, pass through exhaust pipe 8 The wind-force that interior discharge gas generates rotates frictional disk 9 as driving force, by producing between frictional disk 9 and friction lever 10 because rubbing In heat amount and the air being transferred in connecting box 4, heating further is realized to the air in connecting box 4, is realized energy-efficient During which effect is reduced by gap between sliding panel 11 and support board 2, make stream of the air between sliding panel 11 and support board 2 Speed is accelerated, because water evaporation rate is directly proportional to the flow velocity of air, it can accelerates the evaporation of moisture in graphene on support board 2 Speed, to improve drying efficiency.

Compared with prior art, which realizes the function of drying graphene by drying mechanism Can, compared with existing drying mechanism, which realizes energy-efficient effect by the recycling of heat, meanwhile, also Pass through frictional heat generation and heat is realized and utilize, further improves energy-saving effect, moreover, also improved by auxiliary body Drying efficiency, compared with existing auxiliary body, the auxiliary body by heat as driving force, without being driven by electricity, more Add environmental protection and energy saving, meanwhile, heat is collected by drying mechanism, the raising speed of heat in main body 1 can be improved, further increase Drying efficiency.

Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.

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