CN116412308A

CN116412308A - Pipeline preheating device

Info

Publication number: CN116412308A
Application number: CN202310680471.0A
Authority: CN
Inventors: 薛仲华
Original assignee: WUXI HUALI PETROLEUM AND CHEMICAL ENGINEERING CO LTD
Current assignee: Wuxi Huali Juneng Equipment Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-07-11
Anticipated expiration: 2043-06-09
Also published as: CN116412308B

Abstract

The application discloses a pipeline preheating device relates to pipeline heating technical field. The application includes horizontal heat exchanger, horizontal heat exchanger's distribution end upper and lower both sides intercommunication respectively has inlet tube and outlet tube, fixed intercommunication has inlet pipe and discharging pipe on horizontal heat exchanger's the casing, still includes: and the external heating mechanism is communicated with the transport pipe through a flange plate at the end part of the outflow pipe and comprises a heat conduction pad which can be detachably wrapped outside the transport pipe. This application is through wrapping up heat conduction pad, heating rope and heat accumulation cover in the outside of transportation pipe, can utilize the heat accumulation cover to absorb sunshine under the flat temperature to slowly preheat the transportation pipe, protect inside three-dimensional temperature, and in cold weather, then can utilize the heating rope to heat conduction pad and heat accumulation cover, preheat the transportation pipe in advance, avoid fluid inflow transportation pipe and cooling after the heating, increase the security, ensured the normal operating of follow-up equipment.

Description

Pipeline preheating device

Technical Field

The application relates to the technical field of pipeline heating, in particular to a pipeline preheating device.

Background

The horizontal heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, also called a heat exchanger, wherein the cold fluid and the hot fluid in the horizontal heat exchanger mainly flow horizontally in a pipeline to transfer the heat, the cold fluid is discharged through a discharge pipe and is conveyed to the next working procedure after being heated by the hot fluid, but the device of the next working procedure is generally communicated with the heat exchanger through the pipeline, the pipeline does not have the function of heat preservation and heating, when the heated fluid enters a conveying pipe, the heat is absorbed by the pipeline, so that the temperature of the fluid is reduced, the normal operation of the next working procedure is influenced, particularly in winter in northern areas, the temperature of the fluid is continuously reduced when the heated fluid is conveyed through the pipeline, and the work of the subsequent device is seriously influenced.

Therefore, the invention provides the pipeline preheating device which can preheat the pipeline and ensure that the excessive temperature is not reduced during fluid transportation.

Disclosure of Invention

The purpose of the present application is: in order to solve the problems in the background art, the application provides a pipeline preheating device.

The application specifically adopts the following technical scheme for realizing the purposes:

the pipeline preheating device comprises a horizontal heat exchanger, wherein the upper side and the lower side of a distribution end of the horizontal heat exchanger are respectively communicated with a flow inlet pipe and a flow outlet pipe, a shell of the horizontal heat exchanger is fixedly communicated with a feed pipe and a discharge pipe, and the pipeline preheating device further comprises:

the outer heating mechanism comprises a heat conducting pad which is detachably wrapped outside the transportation pipe, a heating rope is spirally wrapped outside the heat conducting pad, and a heat storage sleeve for wrapping the heating rope is detachably sleeved outside the heat conducting pad;

the waste heat diversion assembly comprises a plurality of support ring networks which are connected in an array manner in the conveying pipe, the support ring networks are fixedly connected with a flow pipe which is suspended in the conveying pipe, two ends of the conveying pipe are respectively communicated with a heat inlet pipe and a heat outlet pipe, the other end of the heat inlet pipe is fixedly communicated with the upper side of the discharge pipe, and the other end of the heat outlet pipe is fixedly communicated with the lower side of the discharge pipe;

the overturning receiving piece is arranged between the heat inlet pipe and the heat outlet pipe and is used for shunting and pressing the hot fluid in the heat outlet pipe into the heat inlet pipe;

the one-way drainage piece is arranged between the heat outlet pipe and the discharge pipe and is used for draining fluid in the heat outlet pipe into the discharge pipe;

the pressurizing piece comprises a driving rotating wheel rotatably arranged in the discharging pipe, an impeller frame is communicated in the heat inlet pipe, and the impeller frame is in transmission connection with the driving rotating wheel through a linkage piece.

Further, the heat conduction pad is cylindrical in shape, a strip-shaped opening is formed in the lower side of the heat conduction pad, a plurality of butt joint pieces are connected to two sides of the strip-shaped opening in an array mode along the length direction of the strip-shaped opening, and a plurality of through holes are formed in the butt joint pieces.

Further, the heating rope comprises a heating wire, a bamboo joint type insulating ceramic string is wrapped outside the heating wire, the heating wire is oppositely folded and inserted in the insulating ceramic string, glass fiber heat insulation cotton is filled between two opposite folding sections, and two ends of the heating wire are connected with connectors.

Further, the heat accumulation sleeve quantity is a plurality of and is pegged graft each other and link to each other, the heat accumulation sleeve includes two arc, two the upside of arc is articulated each other through the articulated column, two install the connecting piece that is used for the joint to link to each other between the free end of arc.

Further, the connecting piece includes the connection piece of fixed connection at arc terminal side, and two opposite sides of connection piece are constructed and are used for wrapping up the recess of butt joint piece, wherein one side the connection piece is last fixedly connected with a plurality of activity through-holes's snap, the opposite side the connection piece is last to be constructed with the card hole that inserts mutually with the snap.

Further, sealing rings connected with the inner wall of the conveying pipe are respectively arranged at two ends of the flow pipe, a preheating cavity is formed between the flow pipe and the conveying pipe, a spiral groove is arranged in the preheating cavity, and one ends of the heat inlet pipe and the heat outlet pipe are respectively communicated with two ends of the spiral groove.

Further, the three-way pipe is arranged between the heat inlet pipe and the heat outlet pipe and between the heat outlet pipe and the heat outlet pipe, the overturning receiving piece comprises a first flip hinged at the connecting port of the three-way pipe and the heat inlet pipe, the free end of the first flip is arranged towards the opposite direction of the flow of the hot fluid, steel wire ropes penetrating through the heat outlet pipe in a sliding mode are fixedly connected to the two sides of the first flip, locking columns are rotatably arranged on the outer side of the three-way pipe through torsion springs, the two steel wire ropes are wound on the locking columns, and the outer side of the steel wire ropes is wrapped with a protection sealing pipe connected to the three-way pipe.

Further, one end of the flip cover, which faces the heat inlet pipe, is fixedly connected with a rubber column, the end part of the rubber column is provided with a conical leather sheath for blocking the heat inlet pipe, and the conical surface of the conical leather sheath faces the discharge pipe.

Further, the one-way drainage piece comprises a second flip hinged at the joint of the three-way pipe and the heat outlet pipe, and the free end of the second flip is downwards arranged.

Further, the impeller frame comprises a column frame fixedly communicated in the heat inlet pipe, the fan blades are rotatably installed in the column frame, the linkage piece comprises a rotating shaft fixedly connected with one end of the fan blades, the other end of the rotating shaft rotates to penetrate through the corner of the heat inlet pipe, a shaft rod which rotates to penetrate through the discharging pipe is fixedly connected to the driving rotating wheel, and the shaft rod is connected with the rotating shaft through gear transmission.

The beneficial effects of this application are as follows:

1. this application is through the outside parcel heat conduction pad at the transportation pipe to wrap up the heat accumulation cover in the heat conduction pad outside, and still around being equipped with heating rope between heat conduction pad and the heat accumulation cover, can utilize the heat accumulation cover to absorb sunshine under ordinary temperature, thereby progressively heat the transportation pipe, the heat conduction pad can be effectively with heat transfer for the transportation pipe, and in cold weather, then can utilize the heating rope to heat conduction pad and the heat accumulation cover, because the separation of heat accumulation cover can reduce thermal loss, the guarantee heat conduction pad can preheat the transportation pipe in advance, avoid fluid inflow transportation pipe and cooling after the heating, increase the security, the normal operating of follow-up equipment has been ensured.

2. This application is through setting up waste heat water conservancy diversion subassembly, can introduce the intermediate layer in the middle of transportation pipe and the runner pipe with the hot fluid through advancing the heat pipe to in the middle of discharging pipe is re-arranged with the hot fluid through going out the heat pipe, and cyclic reciprocation can get up the waste heat utilization of hot fluid, and carries out internal heating to transportation pipe and runner pipe, so as to ensure the temperature of pipeline, the fluid after avoiding the heating reduces when entering.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective view of a further perspective view of the present application;

FIG. 3 is an exploded view of a portion of the heating cord of the present application;

FIG. 4 is an exploded view of the external heating mechanism of the present application;

FIG. 5 is an enlarged view of FIG. 4A of the present application;

FIG. 6 is an exploded view of the three-dimensional structure of the waste heat diversion assembly of the present application;

FIG. 7 is a perspective view in half section of the inverted receiver of the present application;

FIG. 8 is a semi-sectional view of yet another perspective configuration of the inverted receiver of the present application;

FIG. 9 is an exploded view of the three-dimensional structure of the unidirectional fluid discharge member of the present application;

FIG. 10 is a perspective view of the pressure member and linkage of the present application;

reference numerals: 1. a horizontal heat exchanger; 101. a flow inlet pipe; 102. a outflow pipe; 103. a feed pipe; 104. a discharge pipe; 2. an external heating mechanism; 201. a thermal pad; 2011. a strip-shaped opening; 2012. butt joint pieces; 2013. a through hole; 202. a heating cord; 2021. a heating wire; 2022. an insulating ceramic string; 2023. a plug; 203. a heat storage jacket; 2031. an arc-shaped plate; 2032. a hinge post; 2033. a connecting piece; 20331. a connecting sheet; 20332. a groove; 20333. the button is pressed; 20334. a clamping hole; 3. a transport tube; 4. a waste heat diversion assembly; 401. supporting the ring network; 402. a flow pipe; 4021. a seal ring; 4022. preheating the cavity; 4023. a spiral groove; 403. a heat pipe; 404. a heat pipe; 5. turning over the receiving member; 501. a first flip cover; 5011. a rubber column; 5012. a conical leather sheath; 502. a wire rope; 503. a torsion spring; 504. locking the column; 505. a protective seal tube; 6. a unidirectional drainage member; 601. a second flip cover; 7. a pressurizing member; 701. driving a rotating wheel; 702. an impeller frame; 7021. a column frame; 7022. a fan blade; 8. a linkage member; 801. a rotating shaft; 802. a shaft lever; 9. a three-way pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

As shown in fig. 1, fig. 2, fig. 4 and fig. 10, the pipeline preheating device provided in an embodiment of the present application includes a horizontal heat exchanger 1, an inlet pipe 101 and an outlet pipe 102 are respectively connected to the upper and lower sides of a distribution end of the horizontal heat exchanger 1, a feeding pipe 103 and a discharging pipe 104 are fixedly connected to a housing of the horizontal heat exchanger 1, wherein the inlet pipe 101 and the outlet pipe 102 are used for conveying cold fluid, the feeding pipe 103 and the discharging pipe 104 are used for conveying hot fluid, the cold fluid and the hot fluid exchange heat in the housing of the horizontal heat exchanger 1, so as to heat the cold fluid, and the cold fluid is discharged out of the horizontal heat exchanger 1 through the outlet pipe 102 after being heated, and further includes:

the external heating mechanism 2, the end of the outflow pipe 102 is communicated with the transportation pipe 3 through a flange, the external heating mechanism 2 comprises a heat conducting pad 201 which is detachably wrapped outside the transportation pipe 3, a heating rope 202 is spirally wrapped outside the heat conducting pad 201, a heat storage sleeve 203 which is used for wrapping the heating rope 202 is detachably sleeved outside the heat conducting pad 201, when the heated cold fluid is discharged and directly enters the transportation pipe 3, in the north of cold weather, if the transportation pipe 3 is not preheated, the fluid directly enters the transportation pipe, the heat can be rapidly dissipated, thus influencing the subsequent working procedure, while the device can absorb the radiant heat in the sunlight and slowly dissipate the heat outwards by wrapping the heat conducting pad 201 outside the transportation pipe 3 and wrapping the heat storage sleeve 203 outside the heat conducting pad 201, the solar heat-insulating device has a certain heat-insulating effect, the heat-conducting pad 201 is directly contacted with the transport pipe 3 and the heat-insulating sleeve 203, the heat-insulating sleeve 203 can accelerate the speed of transmitting heat to the transport pipe 3, so that the heat in sunlight can be utilized, the transport pipe 3 can be continuously heated and insulated in sunny weather under normal state, the effect of continuous preheating is achieved, the heated circulation is ensured not to lose excessive temperature, the functionality and the safety of the device are improved, the heat-conducting pad 201 can be directly heated in cold weather or overcast and rainy weather by arranging the heating rope 202, the outer side of the transport pipe 3 is heated, the inside of the transport pipe is gradually preheated, the fact that the heating rope 202 is controlled electric operation is needed, the continuous operation is not needed before the device is operated, and the preheating effect can be achieved;

the waste heat diversion assembly 4 comprises a plurality of support ring networks 401 which are connected in the transport pipe 3 in an array manner, a flow pipe 402 which is suspended in the transport pipe 3 is fixedly connected to the support ring networks 401, two ends of the transport pipe 3 are respectively communicated with a heat inlet pipe 403 and a heat outlet pipe 404, the other end of the heat inlet pipe 403 is fixedly communicated with the upper side of the discharge pipe 104, the other end of the heat outlet pipe 404 is fixedly communicated with the lower side of the discharge pipe 104, and the flow pipe 402 is arranged in the transport pipe 3 to convey fluid by utilizing the flow pipe 402, and the transport pipe 3 serves as a layer of heat insulation protection layer to further ensure the transportation temperature of the fluid;

a flip receiver 5 mounted between the heat pipe 403 and the discharge pipe 104 for diverting the hot fluid in the discharge pipe 104 into the heat pipe 403;

the unidirectional drainage piece 6 is arranged between the heat outlet pipe 404 and the heat outlet pipe 104 and is used for discharging fluid in the heat outlet pipe 404 into the heat outlet pipe 104, the turnover receiving piece 5 is used for guiding the hot fluid flowing out of the heat outlet pipe 104 into the heat inlet pipe 403, the hot fluid is discharged into the heat outlet pipe 104 again through the heat outlet pipe 404 after passing through an interlayer between the transportation pipe 3 and the flow pipe 402, a part of heat still remains after the hot fluid heats and circulates, the device can utilize the waste heat of the hot fluid, the internal part of the transportation pipe 3 is heated, and the external heating mechanism 2 is matched for double heating, so that the preheating efficiency can be improved, the heat energy utilization rate can be improved, the heat energy waste is reduced, and the heat inlet pipe 403 and the heat outlet pipe 404 are arranged on the side surface of the heat outlet pipe 104, the turnover receiving piece 5 is used for shunting the hot fluid into the heat inlet pipe 403, the discharge pipe 104 is not excessively influenced, the displacement of the hot fluid is ensured, the normal heat storage phenomenon of the equipment is prevented from being generated in the horizontal heat exchanger 1, and the safety of the equipment is ensured;

the pressurizing piece 7 comprises a driving rotating wheel 701 rotatably arranged in the discharging pipe 104, an impeller frame 702 is communicated in the heat inlet pipe 403, the impeller frame 702 is in transmission connection with the driving rotating wheel 701 through a linkage piece 8, the pressurizing piece 7 is mainly used for increasing the flowing speed of hot fluid towards the inside of the conveying pipe 3, accelerating the preheating efficiency and improving the heat energy utilization rate, and the driving rotating wheel 701 is driven to rotate mainly through the flowing power of the hot fluid in the discharging pipe 104, so that the kinetic energy is transmitted to the impeller frame 702 through the linkage piece 8, the flowing speed of the internal fluid is accelerated by utilizing the rotation of the impeller frame 702, the preheating efficiency is improved, the structure utilizes the power energy of the hot fluid, no additional driving equipment is needed, and the resource is saved.

As shown in fig. 4, in some embodiments, the heat conducting pad 201 is cylindrical and has a strip-shaped opening 2011 configured at the lower side, the heat conducting pad 201 is made of silica gel, and has flexibility and good heat conducting effect, so that heat of the heating rope 202 and the heat storage sleeve 203 can be effectively transferred, two sides of the strip-shaped opening 2011 are connected with a plurality of butt pieces 2012 along the length direction of the strip-shaped opening, a plurality of through holes 2013 are configured on the butt pieces 2012, the strip-shaped opening 2011 is opened along the length direction of the heat conducting pad 201, the outer surface of the transport pipe 3 can be conveniently wrapped, the transport pipe 3 with different bending forms can be adapted, the adaptability of the device is improved, and after the wrapping is completed, the butt pieces 2012 which are mutually attached in pairs can be connected and fixed by bolts, so that the disassembly and replacement operations are facilitated, and the flexibility of the device is improved.

As shown in fig. 3, in some embodiments, the heating rope 202 includes a heating wire 2021, the outer side of the heating wire 2021 is wrapped with a bamboo joint type insulating ceramic string 2022, the heating wire 2021 is folded and inserted in the insulating ceramic string 2022, and glass fiber heat insulation cotton is filled between two folded sections, two ends of the heating wire 2021 are connected with plug connectors 2023, the conventional heating rope 202 adopts monofilament heating, that is, only one heating wire 2021 is inserted in the insulating ceramic string 2022, in the device, double wires can be formed by folding the heating wire 2021 and arranged in the insulating ceramic string 2022, and glass fiber heat insulation cotton is arranged between the two folded sections, so that not only can an insulating layer be formed, but also heat can be prevented from being transferred mutually, the situation that the heat stored in the heating wire 2021 is too much and damaged is avoided, and safety is improved.

As shown in fig. 4, in some embodiments, the heat storage sleeves 203 are made of heat storage brick materials, the number of the heat storage sleeves 203 is multiple and are mutually spliced and connected, the heat storage sleeves 203 comprise two arc plates 2031, the upper sides of the two arc plates 2031 are mutually hinged through a hinge post 2032, a connecting piece 2033 for clamping connection is installed between the free ends of the two arc plates 2031, the heat storage bricks are generally made of materials with high specific heat and high heat conductivity coefficient, such as magnesium oxide, expanded perlite, expanded vermiculite, ceramsite, kiln slag and the like, the materials can absorb heat energy of sunlight in the daytime and store the heat energy in the brick body, and then the heat storage sleeves 203 are slowly released to keep warm, the heat storage sleeves 203 in the device are made of the materials but are different in form, in order to be capable of being attached to wrap the transportation pipes 3, the two mutually hinged arc plates 2031 are arranged, the plurality of heat storage sleeves 203 are arranged for convenient transportation and installation, the shape of the heat storage sleeves 203 is various, the bending forms of the heat storage sleeves are used for adapting to the transportation pipes 3 with different forms, the flexibility of the heat storage sleeves 203 is increased, the heat storage sleeves 203 are arranged, and the free ends of the heat storage sleeves 203 are conveniently and are prevented from being fixedly connected, and the heat storage sleeves 3 are prevented from being separated.

As shown in fig. 4-5, in some embodiments, the connecting piece 2033 includes a connecting piece 20331 fixedly connected to an end side of the arc plate 2031, opposite sides of the two connecting pieces 20331 are configured with a groove 20332 for wrapping the butt joint piece 2012, wherein a plurality of snaps 20333 movably penetrating through the through holes 2013 are fixedly connected to the connecting piece 20331 on one side, a clamping hole 20334 inserted into the snaps 20333 is configured on the connecting piece 20331 on the other side, the ends of the snaps 20333 are configured with round protrusions, the connection with the clamping hole 20334 can be formed by interference fit, the butt joint piece 2012 can be wrapped in the middle by the groove 20332, the heat conducting pad 201 can be synchronously fixed in a limiting mode, and resources are saved while the structure is ensured to be stable.

As shown in fig. 6, in some embodiments, sealing rings 4021 connected with the inner wall of the conveying pipe 3 are configured at two ends of the flow pipe 402, a preheating cavity 4022 is formed between the flow pipe 402 and the conveying pipe 3, a spiral groove 4023 is configured in the preheating cavity 4022, one ends of the heat inlet pipe 403 and the heat outlet pipe 404 are respectively communicated with two ends of the spiral groove 4023, and the spiral groove 4023 is arranged in the preheating cavity 4022, so that the circulation time of the hot fluid in the preheating cavity 4022 can be increased, the area of the flow pipe 402 can be ensured to be more comprehensive, and the phenomenon of uneven heating can be avoided.

As shown in fig. 1, 2, 7 and 8, in some embodiments, a tee pipe 9 is installed between a heat inlet pipe 403 and a heat outlet pipe 104 and between a heat outlet pipe 404 and the heat outlet pipe 104, a turnover receiving member 5 includes a first flip cover 501 hinged at a connection port of the tee pipe 9 and the heat inlet pipe 403, a steel wire rope 502 fixedly connected to two sides of the first flip cover 501 and penetrating the heat outlet pipe 104 in a sliding manner is arranged at a free end of the first flip cover facing a direction opposite to a hot fluid flow direction, a locking column 504 is rotatably installed at an outer side of the tee pipe 9 through a torsion spring 503, two steel wire ropes 502 are wound on the locking column 504, a protection sealing pipe 505 connected to the tee pipe 9 is wrapped at an outer side of the steel wire rope 502, it is to be noted that the tee pipe 9 connected to the heat inlet pipe 403 by the heat outlet pipe 104 is installed on a horizontal section, the tee pipe 9 connected to the heat outlet pipe 404 is installed on a vertical section, a bevel surface is configured at a free end of the first flip cover 501, i.e. an upper end faces one side of the heat inlet pipe 403, when the discharging pipe 104 discharges the hot fluid, the hot fluid flows downwards through pressure and gravity, and in the flowing process, the oblique angle surface of the first turning cover 501 is impacted to turn over the first turning cover 501, at this time, the torsion spring 503 generates rotation compression, and makes the steel wire rope 502 extend a part into the discharging pipe 104, and then makes a part of the hot fluid enter into the heat inlet pipe 403, and then the hot fluid is continuously pumped towards the preheating cavity 4022 due to the continuous pumping pressure of the pressurizing piece 7, the first turning cover 501 is reset and turned over under the influence of the negative pressure, and the torsion spring 503 on the locking column 504 also drives the steel wire rope 502 through torsion force, so as to assist the free end of the first turning cover 501 to turn over and reset upwards, then the fluid in the discharging pipe 104 continues to wash the first turning cover 501, and the circulating reciprocating can form continuous back and forth flapping, the hot fluid is gradually extruded into the heat inlet pipe 403, no additional diversion driving equipment is needed, the diversion effect is generated by utilizing fluid power, and the innovation of the device is improved.

As shown in fig. 7, in some embodiments, a rubber column 5011 is fixedly connected to one end of the first flip cover 501 facing the heat inlet pipe 403, a conical leather sheath 5012 for blocking the heat inlet pipe 403 is configured at the end of the rubber column 5011, the conical surface of the conical leather sheath 5012 is arranged facing the discharge pipe 104, the conical leather sheath 5012 is arranged to block the flow of the heat inlet pipe 403 facing the discharge pipe 104 in a state that the first flip cover 501 is closed, and the first flip cover 501 can deform by driving the conical leather sheath 5012 through the rubber column 5011 when being turned down, so that the sealing is opened, the heat fluid can conveniently enter the heat inlet pipe 403, a unidirectional circulation function is formed, and the gradual pressing operation of the fluid is ensured to be smoothly carried out.

As shown in fig. 9, in some embodiments, the unidirectional drainage member 6 includes a second flip 601 hinged at the connection position between the tee 9 and the heat outlet pipe 404, the free end of the second flip 601 is downward, when the fluid flowing through the preheating cavity 4022 flows into the heat outlet pipe 404, the second flip 601 is pushed to turn upwards by pressure, so that the opening processing fluid is conveniently opened to be re-discharged into the discharge pipe 104, and the fluid flow in the discharge pipe 104 can impact the second flip 601 again to cooperate with the gravity of the second flip 601 to generate downward turning reset operation, so that the circulation in the discharge pipe 104 is prevented from being flushed into the heat outlet pipe 404, the influence on the heat of the fluid flowing into the heat inlet pipe 403 is avoided, the unidirectional circulation effect is formed, and the safety is increased.

As shown in fig. 2 and 10, in some embodiments, the impeller frame 702 includes a column frame 7021 fixedly connected in the heat inlet pipe 403, the column frame 7021 is rotatably provided with a fan blade 7022, the linkage member 8 includes a rotating shaft 801 fixedly connected with one end of the fan blade 7022, the other end of the rotating shaft 801 rotates and penetrates through a corner of the heat inlet pipe 403, a shaft lever 802 which rotates and penetrates through the discharge pipe 104 is fixedly connected to the driving wheel 701, the shaft lever 802 is connected with the rotating shaft 801 through gear transmission, it is to be noted that the blades of the driving wheel 701 are tangent to the inner wall of the discharge pipe 104 by adopting arc blades, the downward impact pressure of fluid can be utilized more effectively, the transfer effect of kinetic energy is guaranteed, the driving wheel 701 can be driven to rotate continuously by using the power of the circulating flow in the discharge pipe 104, and then the shaft lever 802 is driven to rotate synchronously, gears meshed with each other are sleeved on the rotating shaft 801 and the shaft lever 802, and the gears are sequentially increased, so that the gears can form large gears drive the small gears to rotate, and therefore the rotating speed of the rotating shaft 801 can be increased compared with the rotating shaft 802, the rotating speed of the rotating shaft lever 403 can be guaranteed, and the fluid can be heated continuously and the fluid can flow through the heat pipe 4023, and the heat the inside the hollow cavity 3 can be guaranteed, and the fluid can flow continuously and can flow through the hollow cavity through the heat pipe 7022.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Pipeline preheating device, including horizontal heat exchanger (1), both sides are linked together respectively about the distribution end of horizontal heat exchanger (1) have inflow pipe (101) and outlet pipe (102), fixed intercommunication has inlet pipe (103) and discharging pipe (104) on the casing of horizontal heat exchanger (1), its characterized in that still includes:

the external heating mechanism (2), the end part of the outflow pipe (102) is communicated with the transportation pipe (3) through a flange, the external heating mechanism (2) comprises a heat conduction pad (201) which is detachably wrapped outside the transportation pipe (3), a heating rope (202) is spirally wrapped outside the heat conduction pad (201), and a heat storage sleeve (203) for wrapping the heating rope (202) is detachably sleeved outside the heat conduction pad (201);

the waste heat diversion assembly (4) comprises a plurality of support ring networks (401) which are connected in the conveying pipe (3) in an array manner, wherein the support ring networks (401) are fixedly connected with a flow pipe (402) which is suspended in the conveying pipe (3), two ends of the conveying pipe (3) are respectively communicated with a heat inlet pipe (403) and a heat outlet pipe (404), the other end of the heat inlet pipe (403) is fixedly communicated with the upper side of the discharge pipe (104), and the other end of the heat outlet pipe (404) is fixedly communicated with the lower side of the discharge pipe (104);

a turnover receiving piece (5) which is arranged between the heat inlet pipe (403) and the discharge pipe (104) and is used for pressing the hot fluid in the discharge pipe (104) into the heat inlet pipe (403) in a split way;

a one-way drainage piece (6) which is arranged between the heat outlet pipe (404) and the discharge pipe (104) and is used for draining the fluid in the heat outlet pipe (404) into the discharge pipe (104);

the pressurizing piece (7) comprises a driving rotating wheel (701) rotatably arranged in the discharging pipe (104), an impeller frame (702) is connected in the heat inlet pipe (403), and the impeller frame (702) is in transmission connection with the driving rotating wheel (701) through a linkage piece (8);

sealing rings (4021) connected with the inner wall of the conveying pipe (3) are respectively constructed at two ends of the circulating pipe (402), a preheating cavity (4022) is formed between the circulating pipe (402) and the conveying pipe (3), spiral grooves (4023) are formed in the preheating cavity (4022), one ends of the heat inlet pipe (403) and the heat outlet pipe (404) are respectively communicated with two ends of the spiral grooves (4023), three-way pipes (9) are respectively mounted between the heat inlet pipe (403) and the heat outlet pipe (104) and between the heat outlet pipe (404) and the heat outlet pipe (104), a flip cover (501) hinged at the connecting port of the three-way pipe (9) and the heat inlet pipe (403) is included, steel wire ropes (502) penetrating through the heat outlet pipe (104) in a sliding mode are fixedly connected to two sides of the flip cover (501) in the opposite direction of the hot fluid flow, locking columns (504) are rotatably mounted on the outer sides of the three-way pipe (9) through torsion springs (503), two steel wire ropes (502) are respectively wound on the steel wire ropes (403) and are connected with one end (501) of the flip cover (501) which is fixedly connected with one end (501) of the heat inlet pipe (501), the end of the rubber column (5011) is provided with a conical leather sheath (5012) for blocking the heat inlet pipe (403), the conical surface of the conical leather sheath (5012) is arranged towards the discharge pipe (104), the one-way drainage piece (6) comprises a flip cover II (601) hinged at the joint of the three-way pipe (9) and the heat outlet pipe (404), and the free end of the flip cover II (601) is downwards arranged.

2. The pipe preheating device according to claim 1, wherein the heat conducting pad (201) is cylindrical in shape and is provided with a strip-shaped opening (2011) on the lower side, a plurality of butt joint pieces (2012) are connected to two sides of the strip-shaped opening (2011) in an array manner along the length direction of the strip-shaped opening, and a plurality of through holes (2013) are formed in the butt joint pieces (2012).

3. The pipeline preheating device according to claim 1, wherein the heating rope (202) comprises a heating wire (2021), a bamboo joint type insulating ceramic string (2022) is wrapped on the outer side of the heating wire (2021), the heating wire (2021) is oppositely folded and inserted in the insulating ceramic string (2022), glass fiber heat insulation cotton is filled between the two opposite folding sections, and two ends of the heating wire (2021) are connected with plug connectors (2023).

4. The pipeline preheating device according to claim 1, wherein the number of the heat storage sleeves (203) is multiple, the heat storage sleeves (203) are connected in an inserted manner, the heat storage sleeves (203) comprise two arc-shaped plates (2031), the upper sides of the two arc-shaped plates (2031) are mutually hinged through a hinge post (2032), and a connecting piece (2033) for being connected in a clamped manner is arranged between the free ends of the two arc-shaped plates (2031).

5. The pipe preheating device according to claim 4, wherein the connecting member (2033) includes a connecting piece (20331) fixedly connected to an end side of the arc-shaped plate (2031), opposite sides of the two connecting pieces (20331) are configured with a groove (20332) for wrapping the opposite pieces (2012), wherein a plurality of snaps (20333) movably penetrating through holes (2013) are fixedly connected to the connecting piece (20331) on one side, and a snap hole (20334) for inserting the snaps (20333) is configured on the connecting piece (20331) on the other side.

6. The pipeline preheating device according to claim 1, wherein the impeller frame (702) comprises a column frame (7021) fixedly communicated in the heat inlet pipe (403), the fan blades (7022) are rotatably mounted in the column frame (7021), the linkage piece (8) comprises a rotating shaft (801) fixedly connected with one end of the fan blades (7022), the other end of the rotating shaft (801) rotates to penetrate through a corner of the heat inlet pipe (403), a shaft lever (802) rotatably penetrating through the discharge pipe (104) is fixedly connected to the driving rotating wheel (701), and the shaft lever (802) is connected with the rotating shaft (801) through a gear transmission.