CN111976166A

CN111976166A - Graphene super-heat-conduction ground heating pipe and production equipment and process

Info

Publication number: CN111976166A
Application number: CN202010810761.9A
Authority: CN
Inventors: 杨刚; 阴战文
Original assignee: Beijing StLawrence Radiator Manufacturing Co ltd
Current assignee: Beijing StLawrence Radiator Manufacturing Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-24
Anticipated expiration: 2040-08-13
Also published as: CN111976166B

Abstract

The invention discloses a graphene super-heat-conduction ground heating pipe and production equipment and a process thereof, and belongs to the technical field of ground heating pipes, wherein the graphene super-heat-conduction ground heating pipe comprises a first plastic extruding machine and a second plastic extruding machine, the first plastic extruding machine carries out one-time plastic extruding operation to produce a semi-finished product of the ground heating pipe, the first plastic extruding machine is connected with a cooling machine to rapidly cool the semi-finished product of the ground heating pipe, the cooling machine is connected with a film laminating device to cover the semi-finished product of the ground heating pipe with a graphene composite film, the film laminating device is connected with a punching device, the punching device punches concave holes at intervals on the inner wall of the semi-finished product of the ground heating pipe and the; and the second plastic extruding machine carries out secondary plastic extruding operation to cover the outer wall of the semi-finished product of the floor heating pipe and process the semi-finished product of the floor heating pipe to form a finished product of the floor heating pipe. The graphene floor heating pipe is high in strength, good in flexibility and long in service life, the floor heating is guaranteed to be heated more quickly, the heat dissipation rate of the floor heating pipe is greatly improved, and a floor heating system is more energy-saving and environment-friendly.

Description

Graphene super-heat-conduction ground heating pipe and production equipment and process

Technical Field

The invention relates to the technical field of ground heating pipes, in particular to a graphene super-heat-conduction ground heating pipe and production equipment and process thereof.

Background

Since the northern areas of China are very cold in winter, the house heating in modern construction generally realizes a floor radiation heating mode, namely, the conventional floor heating is a heat storage and heat transfer technology based on the ground, and at present, newly built communities are provided with floor heating facilities in the southern areas so as to solve the warm-keeping requirement of living in winter. Compared with air-conditioning heating and the like, the floor radiant heating has multiple advantages, such as uniform indoor earth surface temperature, no influence on indoor humidity, comfortable body feeling and general acceptance of people. The ground heating pipe is an important heat dissipation component for floor radiation heating, and the heat conduction performance of the ground heating pipe influences the floor heating effect and is a very key performance parameter. At present, the floor heating pipe is mainly made of polyethylene pipes, the heat conductivity coefficient of the polyethylene pipes is within the range of 0.2-0.4W/(m.k), the heat conductivity of the polyethylene pipes is poor, the requirement of indoor rapid temperature rise cannot be met, and meanwhile, the heat efficiency is low due to large heat loss of heat conduction, and the overall heating efficiency of the floor heating is low. Accordingly, the market for ultra-high thermal conductivity floor heating pipe products is increasing.

Aiming at the phenomenon, the graphene super heat conduction material graphene which is mature in the prior art is selected as an important heat conduction material, the graphene super heat conduction ground heating pipe and related production equipment are provided, the heat conduction coefficient of the graphene is fully utilized to be up to 0.79W/(m.k), the graphene composite film with the cost and the performance is adopted to serve as the heat conduction material of the wall of the ground heating pipe, the manufactured graphene ground heating pipe is high in strength, good in flexibility, long in service life, and capable of guaranteeing the ground heating to be heated more quickly, the heat dissipation rate of the ground heating pipe is greatly improved, and the ground heating system is more energy-saving and environment-friendly.

Meanwhile, the traditional extrusion molding production equipment is optimized based on specific products, the intermediate transfer process is reduced and saved based on the integrated design concept, centralized production is carried out, the production efficiency of the equipment is greatly improved, the large-batch production of the graphene ground heating pipes is met, the economic benefit of enterprises is effectively improved, meanwhile, the living quality of people is improved through the products, and the social benefit is increased.

Disclosure of Invention

The invention aims to solve the problems and provides a graphene super-heat-conduction ground heating pipe and production equipment and a production process thereof, and the technical scheme adopted by the invention is as follows: a production device of a graphene super-heat-conduction ground heating pipe comprises a first plastic extruding machine and a second plastic extruding machine, wherein the first plastic extruding machine carries out one-time plastic extruding operation to produce a semi-finished product of the ground heating pipe, a cooling machine is connected behind the first plastic extruding machine to rapidly cool the semi-finished product of the ground heating pipe, a film laminating device is connected behind the cooling machine to cover the semi-finished product of the ground heating pipe with a graphene composite film, the film laminating device is driven by a turntable device to rotate to wind the graphene composite film on the semi-finished product of the ground heating pipe, a punching device is connected behind the film laminating device, concave holes are punched on the inner wall of the semi-finished product of the ground heating pipe and the graphene composite film at intervals by the punching device; and the second plastic extruding machine carries out secondary plastic extruding operation to cover the outer wall of the semi-finished product of the floor heating pipe to form a finished product of the floor heating pipe.

Further, the cooling machine comprises a cooling box body, the cooling box body is of a front-back opening structure, and the semi-finished floor heating pipe penetrates through the cooling box body and is cooled by a cooling device in the cooling box body; perforating device is provided with the pressure head that the cylinder drove cylinder piston rod top and beats the shrinkage pool on ground heating coil semi-manufactured goods's inner wall and graphite alkene complex film interval.

Furthermore, the cooling device comprises cooling spray heads arranged on the wall of the two sides of the cooling box body, the cooling spray heads are communicated with the water distribution pipes, the water distribution pipes penetrate through the side wall of the cooling box body to be arranged and installed, and the water distribution pipes are all communicated with the water main; the cooling box body is provided with a plurality of limiting rollers below the cooling spray nozzle, the limiting rollers are connected to bearings on two side walls of the cooling box body through rotating shafts, and the limiting rollers are of a structure with a concave middle and two high sides so as to limit the semi-finished product of the floor heating pipe.

Further, the tectorial membrane device includes the tectorial membrane carousel, has seted up the through-hole in the middle of the tectorial membrane carousel and has supplied ground heating coil semi-manufactured goods to pass, and the tectorial membrane carousel is for putting thing box structure, and its inside puts the graphene composite membrane of putting placing bundle in the thing box space, and has seted up ejection of compact opening on the tectorial membrane carousel through-hole inner wall and has supplied the graphene composite membrane to pass, tectorial membrane carousel activity sets up in the housing.

Furthermore, first fixed teeth are arranged on the outer ring of the film coating turntable in an annular array mode, the first fixed teeth prop against the inner wall of a circular structure housing to mount the film coating turntable, and edges are arranged on two sides of the housing to limit the first fixed teeth; the bottom of the housing is provided with a notch, so that a part of first fixing teeth are exposed and connected with the turntable device, and the turntable device drives the film coating turntable to rotate.

Further, the carousel device includes the carousel, and the carousel is driven by the second motor and is rotated, and carousel outer lane ring array is provided with plectrum tooth device, thereby the plectrum tooth device cooperatees with the first fixed tooth of tectorial membrane carousel and drives the tectorial membrane carousel and rotate, thereby the variable rotational speed that drives the tectorial membrane carousel of the number of teeth of plectrum tooth device changes.

Furthermore, the plectrum tooth device includes that the annular array sets up the second fixed tooth at the carousel outer lane, all is provided with the slip tooth between the second fixed tooth, and the height that highly is less than the height of second fixed tooth when the slip tooth contracts the state in, will slip the tooth and outwards push out after the spacing dish of installation and make its height unanimous with the second fixed tooth to make the number of teeth of plectrum tooth device encrypt.

Further, the activity of slip tooth sets up in the spout of carousel, and the notch has been seted up in the spout outside and has been made the slip tooth to carry out slidable mounting, and the one end that the slip tooth is located the spout is connected with the limiting plate through the spliced pole, and the winding is provided with the spring on the spliced pole, and the spring makes the slip tooth get into the state of contracting inwards with limiting plate inwards lapse when taking off spacing dish.

Furthermore, the limiting plate is of a two-section structure, one section of the limiting plate extending into the sliding chute is of a flat plate structure, and the other section of the limiting plate is of an inclined plate structure with a certain angle, so that a buffering effect is exerted on the limiting plate to enable the installation to be smoother; and the two sides of the sliding chute are provided with a baffle plate for limiting the limiting plate and shielding the sliding teeth and the spring in the sliding chute.

The invention further provides the graphene floor heating pipe, the pipe wall of the finished product of the floor heating pipe is of a multilayer structure, concave holes are formed at intervals, the pipe wall comprises an outer wall and an inner wall, a graphene composite film is arranged between the outer wall and the inner wall, the concave holes are formed at intervals on the inner wall and the graphene composite film, and the outer wall covers and fills the concave holes to strengthen fixation.

In addition, the invention also discloses a production process of the graphene super-heat-conduction ground heating pipe, which is carried out by adopting the production equipment provided by the invention and comprises the following steps:

A. primary extrusion molding: finishing one-time extrusion molding operation by adopting a first plastic extruding machine to produce a semi-finished product of the floor heating pipe;

B. and (3) rapid cooling: a cooling machine is connected behind the first plastic extruding machine in a closely connected mode, and the cooling machine is used for rapidly cooling the semi-finished product of the ground heating pipe formed by plastic extruding of the first plastic extruding machine in a water cooling mode;

C. film covering: the rear part of the cooler is connected with a film covering device with a hollow disc structure, the semi-finished product of the ground heating pipe continuously penetrates through the film covering device, and meanwhile, the film covering device rotates to wind and cover the graphene composite film on the semi-finished product of the ground heating pipe;

D. punching a pipe wall: a perforating device is connected behind the film covering device, and concave holes are punched on the wall of the semi-finished product of the ground heating pipe covered with the film by the perforating device at intervals;

E. secondary extrusion molding: and (4) connecting a second plastic extruding machine behind the punching device, connecting the semi-finished product of the ground heating pipe with the punched hole into the second plastic extruding machine, performing secondary plastic extruding, and covering the semi-finished product of the ground heating pipe with a layer of outer wall, thus finally obtaining a finished product of the ground heating pipe.

The invention has the beneficial effects that:

1. aiming at the problems that the traditional polyethylene floor heating pipe is poor in heat conductivity and low in heat dissipation rate, influences the efficiency of a floor heating system, cannot meet the requirements of indoor rapid heating, is short in service life and the like, the graphene super-heat conduction floor heating pipe provided by the invention adopts the graphene composite film with high cost performance as the heat conduction material of the wall of the floor heating pipe, greatly improves the heat conduction performance of the floor heating pipe by utilizing the super-heat conduction performance of graphene, greatly improves the heat dissipation rate of the floor heating pipe, effectively improves the heating efficiency of the floor heating system, and further obtains the overall efficient energy-saving effect.

2. According to the invention, the graphene floor heating pipe wall is of a multilayer structure, concave holes are formed in the inner wall and the graphene composite film by the punching device, and then a firmer integral structure is formed with the outer wall, so that the durability of the product is improved, and the service life is prolonged.

3. The graphene ground heating pipe production equipment can effectively meet the requirement of mass production, wherein the first plastic extruding machine and the second plastic extruding machine are designed in an integrated mode, so that the middle transfer steps are reduced and saved, meanwhile, the cooling machine, the film coating device and the punching device are highly integrated, centralized production is achieved, the final finished product is obtained at one time, the overall size of the equipment is reduced, the spatial arrangement of a workshop is optimized, and the production efficiency can be further improved.

4. In order to complete the film coating operation in the process of finishing one-time extrusion molding, the film coating device is designed into a hollow turntable structure for coating the film while the semi-finished product of the ground heating pipe passes through the film coating device. Wherein the tectorial membrane carousel activity sets up and to rotate in the housing, and the breach is seted up to the housing bottom makes the tectorial membrane carousel expose the first fixed tooth of partly outer lane, and first fixed tooth cooperates with the plectrum tooth device of carousel device of below to it rotates to drive the tectorial membrane carousel of top when realizing that carousel device is rotatory, further realizes the tectorial membrane operation.

5. The shifting piece tooth device of the outer ring of the turntable device comprises sliding teeth, the height of the sliding teeth when the sliding teeth retract is lower than the height of second fixed teeth beside the sliding teeth, the number of teeth of the shifting piece tooth device is sparse, and the sliding teeth are ejected outwards after a limiting plate is installed, so that the height of the sliding teeth is consistent with the height of the second fixed teeth, and the encryption of the number of teeth is realized.

6. According to the production steps of the graphene ground heating pipe, the punching device is arranged before secondary extrusion molding, and concave holes are punched in the graphene ground heating pipe in advance, so that the structural strength of the pipe wall of a finished product produced by the secondary extrusion molding is higher, the risk of falling of the outer wall is reduced, the quality of the product is further improved, and the service life of the product is further prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the production apparatus of the present invention.

Fig. 2 is a schematic view of a tube wall structure of the graphene ground heating tube.

Fig. 3 is a schematic view of the external structure of the cooler of the present invention.

Fig. 4 is a schematic diagram of the internal structure of the cooling machine of the present invention.

Fig. 5 is a schematic view showing the installation of the limiting drum of the cooling machine of the present invention.

FIG. 6 is a schematic view of the mounting of the film covering device and the turntable device of the present invention.

Fig. 7 is a schematic view of a second motor mounting portion of the back of the turntable device of the present invention.

Fig. 8 is a schematic structural diagram of the back of the turntable device of the present invention.

Fig. 9 is a schematic structural diagram of a limiting plate of the invention.

Fig. 10 is a schematic cross-sectional view of a carousel apparatus of the present invention.

Fig. 11 is a schematic structural view of the punching apparatus of the present invention.

The text labels in the figures are represented as: 1. a first motor; 2. a first extruder; 3. a first bracket; 4. a cooling machine; 5. a second bracket; 6. semi-finished products of the floor heating pipes; 7. a film covering device; 8. a turntable device; 9. a second motor; 10. a punching device; 11. a third support; 12. a third motor; 13. a second extruder; 14. finishing the floor heating pipe; 15. a middle support column; 401. cooling the box body; 402. a water main; 403. a water diversion pipe; 404. cooling the spray head; 405. a limiting roller; 406. a rotating shaft; 407. a bearing; 701. a film covering rotary table; 702. a housing; 703. first stationary teeth; 704. a support pillar; 705. an end cap; 706. a discharging opening; 801. a turntable; 802. a limiting disc; 803. second fixed teeth; 804. a sliding tooth; 805. a baffle plate; 806. a chute; 807. connecting columns; 808. a spring; 809. a limiting plate; 810. a notch; 901. a support plate; 902. a pillar; 1001. punching a box body; 1002. a pressure head; 1003. a cylinder; 1401. an outer wall; 1402. a graphene composite membrane; 1403. an inner wall; 1404. a concave hole.

Detailed Description

The invention is further illustrated by the following examples.

A graphite alkene super heat conduction ground heating coil and production facility and technology thereof, including the first extruding machine 2 and the second extruding machine 13, the first extruding machine 2 carries on the operation of a plastic extrusion to produce the semi-finished product 6 of ground heating coil, the first extruding machine 2 connects the cooler 4 to carry on the rapid cooling to the semi-finished product 6 of ground heating coil after the cooler 4, connect the tectorial membrane device 7 to cover the semi-finished product 6 of ground heating coil with the graphene complex film 1402, the tectorial membrane device 7 is driven by the rotary table device 8 to rotate and twine the graphene complex film 1402 on the semi-finished product 6 of ground heating coil, connect the perforating device 10 after the tectorial membrane device 7, the perforating device 10 punches the concave hole 1404 on the inner wall 1403 of the semi-finished product 6 of ground heating coil and the graphene complex film 1402 at intervals, connect the second extruding machine 13 after the perforating device; the second extruder 13 performs a secondary extrusion operation to coat the semi-finished floor heating pipe 6 with the outer wall 1401 to form a finished floor heating pipe 14.

Preferably, as shown in fig. 3 and fig. 5, the cooler 4 includes a cooling box 401, the cooling box 401 is of a front-back opening structure, and the semi-finished floor heating pipe 6 passes through the cooling box 401 and is cooled by a cooling device inside the cooling box 401; the punching device 10 is provided with a cylinder 1003 driving a pressure head 1002 at the top end of a piston rod of the cylinder 1003 to punch concave holes 1404 on the inner wall 1403 of the semi-finished floor heating pipe 6 and the graphene composite film 1402 at intervals.

Preferably, as shown in fig. 5, the cooling device includes cooling nozzles 404 arranged on two side walls of the cooling box 401, the cooling nozzles 404 are connected to water distribution pipes 403, the water distribution pipes 403 are arranged through the side walls of the cooling box 401, and the water distribution pipes 403 are all communicated with the water main 402; the cooling box body 401 is provided with a plurality of limiting rollers 405 below the cooling spray head 404, the limiting rollers 405 are connected to bearings 407 on two side walls of the cooling box body 401 through rotating shafts 406, and the limiting rollers 405 are of a structure with a concave middle and two high sides to limit the semi-finished product 6 of the floor heating pipe.

Preferably, referring to fig. 6, the film covering device 7 includes a film covering turntable 701, a through hole is formed in the middle of the film covering turntable 701 for the ground heating pipe semi-finished product 6 to pass through, the film covering turntable 701 is a storage box structure, a bundle of graphene composite films 1402 is placed in a storage box space inside the film covering turntable 701, a discharge opening 706 is formed in an inner wall surface of the through hole of the film covering turntable 701 for the graphene composite films 1402 to pass through, and the film covering turntable 701 is movably disposed in the housing 702.

Preferably, as shown in fig. 6, first fixed teeth 703 are arranged in an annular array on an outer ring of the film coating turntable 701, the first fixed teeth 703 prop against an inner wall surface of a circular structure housing 702 to mount the film coating turntable 701, and edges are arranged on two sides of the housing 702 to limit the first fixed teeth 703; the bottom of the housing 702 is provided with a notch, so that a part of the first fixing teeth 703 is exposed and connected with the turntable device 8, and the turntable device 8 drives the film coating turntable 701 to rotate.

Preferably, as shown in fig. 6 and 7, the turntable device 8 includes a turntable 801, the turntable 801 is driven by a second motor 9 to rotate, an annular array of the outer ring of the turntable 801 is provided with a blade-shifting tooth device, the blade-shifting tooth device is matched with the first fixed teeth 703 of the film coating turntable 701 to drive the film coating turntable 701 to rotate, and the number of teeth of the blade-shifting tooth device is variable to drive the rotation speed of the film coating turntable 701 to change.

Preferably, as shown in fig. 6 and fig. 10, the piece-shifting tooth device includes second fixed teeth 803 arranged on an outer ring of the turntable 801 in an annular array, sliding teeth 804 are arranged between the second fixed teeth 803, the height of the sliding teeth 804 in the retracted state is lower than the height of the second fixed teeth 803, and the sliding teeth 804 are ejected outwards after the limiting disc 802 is installed so that the height of the sliding teeth 804 is consistent with the height of the second fixed teeth 803, so that the number of teeth of the piece-shifting tooth device is encrypted.

Preferably, as shown in fig. 10, the sliding tooth 804 is movably disposed in a sliding slot 806 of the turntable 801, a notch 810 is formed on an outer side of the sliding slot 806 to enable the sliding tooth 804 to be slidably mounted, one end of the sliding tooth 804 located on the sliding slot 806 is connected with a limiting plate 809 through a connecting column 807, a spring 808 is wound on the connecting column 807, and when the limiting plate 809 is pushed inwards by the spring 808 when the limiting plate 802 is removed, the sliding tooth 804 enters a retracted state.

Preferably, as shown in fig. 9, the limiting plate 809 has a two-section structure, a section of the limiting plate that extends into the sliding slot 806 is a flat plate structure, and another section of the limiting plate is an inclined plate structure with a certain angle, so as to provide a buffering effect for the limiting plate 802 and make the installation smoother; the two sides of the sliding chute 806 are provided with blocking pieces 805 to limit the position of the limit plate 809 and block the sliding teeth 804 and the spring 808 in the sliding chute 806.

Referring to fig. 11, the wall of the finished product 14 of the graphene floor heating pipe is of a multilayer structure, concave holes 1404 are arranged at intervals, the wall includes an outer wall 1401 and an inner wall 1403, a graphene composite film 1402 is arranged between the outer wall 1401 and the inner wall 1403, concave holes 1404 are arranged at intervals between the inner wall 1403 and the graphene composite film 1402, and the concave holes 1404 are covered and filled with the outer wall 1401 to strengthen fixation.

A. primary extrusion molding: finishing one-time extrusion molding operation by using a first plastic extruding machine 2 to produce a semi-finished product 6 of the ground heating pipe;

B. and (3) rapid cooling: the cooling machine 4 is connected to the back of the first plastic extruding machine 2, and the cooling machine 4 is used for rapidly cooling the ground heating pipe semi-finished product 6 formed by plastic extruding through the first plastic extruding machine 2 in a water cooling mode;

C. film covering: the cooling machine 4 is connected with a film covering device 7 of a hollow disc structure, the ground heating pipe semi-finished product 6 continuously penetrates through the film covering device 7, and meanwhile, the film covering device 7 rotates to cover the graphene composite film 1402 on the ground heating pipe semi-finished product 6 in a winding mode;

D. punching a pipe wall: the film covering device 7 is connected with a punching device 10, and concave holes 1404 are punched on the pipe wall of the semi-finished product 6 of the ground heating pipe covered with the film by the punching device 10 at intervals;

E. secondary extrusion molding: and the second plastic extruding machine 13 is connected behind the punching device 10, the perforated semi-finished floor heating pipe 6 is connected into the second plastic extruding machine 13 for secondary plastic extruding, and the outer wall 1401 is covered outside the semi-finished floor heating pipe 6, so that the finished floor heating pipe 14 can be finally obtained.

In conclusion, the invention provides the graphene floor heating pipe aiming at the traditional polyethylene floor heating pipe to improve the heat dissipation rate of the floor heating pipe and meet the requirement of indoor rapid heating and energy saving of a floor heating system, and the graphene floor heating pipe is matched with corresponding production equipment.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. Production equipment of a graphene super-heat-conduction ground heating pipe comprises a first extruding machine (2) and a second extruding machine (13), the production method is characterized in that a first plastic extruding machine (2) carries out one-time plastic extruding operation to produce a semi-finished product (6) of the floor heating pipe, a cooling machine (4) is connected behind the first plastic extruding machine (2) to rapidly cool the semi-finished product (6) of the floor heating pipe, a film coating device (7) is connected behind the cooling machine (4) to coat the semi-finished product (6) of the floor heating pipe with a graphene composite film (1402), the film coating device (7) is driven by a turntable device (8) to rotate to wind the graphene composite film (1402) on the semi-finished product (6) of the floor heating pipe, a punching device (10) is connected behind the film coating device (7), concave holes (1404) are punched on the inner wall (1403) of the semi-finished product (6) of the floor heating pipe and the graphene composite film (1402) at intervals by the punching device (10), and a second plastic extruding machine (13; and the second extruding machine (13) carries out secondary extruding operation to coat the semi-finished product (6) of the floor heating pipe with the outer wall (1401) to form a finished product (14) of the floor heating pipe.

2. The production equipment of the graphene super-heat-conduction ground heating pipe according to claim 1, wherein the cooler (4) comprises a cooling box body (401), the cooling box body (401) is of a front-back opening structure, and the semi-finished product (6) of the ground heating pipe passes through the cooling box body (401) and is cooled by a cooling device inside the cooling box body (401); the punching device (10) is provided with a cylinder (1003) to drive a pressure head (1002) at the top end of a piston rod of the cylinder (1003) to punch concave holes (1404) on the inner wall (1403) of the semi-finished product (6) of the floor heating pipe and the graphene composite film (1402) at intervals.

3. The production equipment of the graphene super-heat-conduction ground heating pipe according to claim 2, wherein the cooling device comprises cooling spray heads (404) which are arranged on two side walls of a cooling box body (401), the cooling spray heads (404) are communicated with water distribution pipes (403), the water distribution pipes (403) are arranged and installed through the side walls of the cooling box body (401), and the water distribution pipes (403) are communicated with a water main (402); the cooling box body (401) is provided with a plurality of limiting rollers (405) below the cooling spray head (404), the limiting rollers (405) are connected to bearings (407) on two side walls of the cooling box body (401) through rotating shafts (406), and the limiting rollers (405) are of a structure with a concave middle and two high sides to limit the semi-finished product (6) of the floor heating pipe.

4. The production equipment of the graphene super-heat-conduction ground heating pipe according to claim 1, wherein the film covering device (7) comprises a film covering rotary table (701), a through hole is formed in the middle of the film covering rotary table (701) for the ground heating pipe semi-finished product (6) to pass through, the film covering rotary table (701) is of a storage box structure, a bundle of graphene composite films (1402) are placed in the storage box space, a discharge opening (706) is formed in the inner wall surface of the through hole of the film covering rotary table (701) for the graphene composite films (1402) to pass through, and the film covering rotary table (701) is movably arranged in the housing (702).

5. The production equipment of the graphene super-heat-conducting ground heating pipe as claimed in any one of claims 1 or 4, wherein the film coating turntable (701) is provided with first fixed teeth (703) in a foreign annular array, the first fixed teeth (703) are abutted against the inner wall surface of a circular structure housing (702) to mount the film coating turntable (701), and edges are arranged on two sides of the housing (702) to limit the first fixed teeth (703); the bottom of the housing (702) is provided with a notch, so that a part of first fixed teeth (703) are exposed and connected with the turntable device (8), and the turntable device (8) drives the film coating turntable (701) to rotate.

6. The production equipment of the graphene super-heat-conducting ground heating pipe as claimed in claim 1, wherein the turntable device (8) comprises a turntable (801), the turntable (801) is driven by a second motor (9) to rotate, the annular array on the outer ring of the turntable (801) is provided with a shifting piece tooth device, the shifting piece tooth device is matched with the first fixed teeth (703) of the film coating turntable (701) to drive the film coating turntable (701) to rotate, and the number of teeth of the shifting piece tooth device is variable to drive the rotation speed of the film coating turntable (701) to change.

7. The production equipment of the graphene super-heat-conducting ground heating pipe as claimed in claim 6, wherein the shifting piece tooth devices comprise second fixed teeth (803) which are arranged on the outer ring of a rotary table (801) in an annular array mode, sliding teeth (804) are arranged between the second fixed teeth (803), the height of the sliding teeth (804) in the retraction state is lower than that of the second fixed teeth (803), and after a limiting disc (802) is installed, the sliding teeth (804) are ejected outwards to enable the height to be consistent with that of the second fixed teeth (803), so that the number of teeth of the shifting piece tooth devices is encrypted.

8. The production equipment of the graphene super-heat-conduction ground heating pipe according to claim 7, wherein the sliding teeth (804) are movably arranged in a sliding groove (806) of a rotating disc (801), a notch (810) is formed in the outer side of the sliding groove (806) to enable the sliding teeth (804) to be installed in a sliding mode, one end, located on the sliding groove (806), of the sliding teeth (804) is connected with a limiting plate (809) through a connecting column (807), a spring (808) is wound on the connecting column (807), and when the limiting disc (802) is removed, the limiting plate (809) is pushed inwards by the spring (808) to enable the sliding teeth (804) to enter a retracted state; the limiting plate (809) is of a two-section structure, one section of the limiting plate extending into the sliding chute (806) is of a flat plate structure, and the other section of the limiting plate is of an inclined plate structure with a certain angle, so that the limiting plate (802) is buffered to ensure that the installation is smoother; and blocking pieces (805) are arranged on two sides of the sliding chute (806) to limit the limiting plate (809) and simultaneously shield the sliding teeth (804) and the spring (808) in the sliding chute (806).

9. The graphene superconducting heat ground heating pipe is characterized in that the graphene superconducting heat ground heating pipe is produced by adopting the production equipment of any one of claims 1 to 8, the pipe wall of a finished product (14) of the ground heating pipe is of a multilayer structure and comprises an outer wall (1401) and an inner wall (1403), a graphene composite film (1402) is arranged between the outer wall (1401) and the inner wall (1403), concave holes (1404) are formed in the inner wall (1403) and the graphene composite film (1402) at intervals, and the concave holes (1404) are covered and filled in the outer wall (1404) so as to be reinforced and fixed.

10. A production process of graphene superconducting ground heating pipe production equipment is characterized in that the graphene superconducting ground heating pipe production equipment of any one of claims 1 to 8 is adopted, and the production process comprises the following steps:

A. primary extrusion molding: finishing one-time extrusion molding operation by adopting a first extruder (2) to produce a semi-finished product (6) of the floor heating pipe;

B. and (3) rapid cooling: the cooling machine (4) is connected to the back of the first plastic extruding machine (2), and the cooling machine (4) is used for rapidly cooling the ground heating pipe semi-finished product (6) extruded and molded by the first plastic extruding machine (2) in a water cooling mode;

C. film covering: the cooling machine (4) is connected with a film covering device (7) with a hollow disc structure, the ground heating pipe semi-finished product (6) continuously penetrates through the film covering device (7), and meanwhile, the film covering device (7) rotates to wind and cover the graphene composite film (1402) on the ground heating pipe semi-finished product (6);

D. punching a pipe wall: the film covering device (7) is connected with a punching device (10) in back, and concave holes (1404) are punched on the pipe wall of the semi-finished product (6) of the ground heating pipe coated with the film by the punching device (10) at intervals;

E. secondary extrusion molding: and a second plastic extruding machine (13) is connected behind the punching device (10), the punched semi-finished floor heating pipe (6) is connected into the second plastic extruding machine (13) for secondary plastic extruding, and a layer of outer wall (1401) is covered outside the semi-finished floor heating pipe (6), so that a finished floor heating pipe (14) can be finally obtained.