CN112984272A - Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry - Google Patents
Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry Download PDFInfo
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- CN112984272A CN112984272A CN202110191076.7A CN202110191076A CN112984272A CN 112984272 A CN112984272 A CN 112984272A CN 202110191076 A CN202110191076 A CN 202110191076A CN 112984272 A CN112984272 A CN 112984272A
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- crude oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/12—Cleaning
Abstract
The invention relates to the technical field of petrochemical industry, in particular to an auxiliary starting device for a thermal wax-containing crude oil pipeline for petrochemical industry, which comprises a conveying pipeline and a walking dredging vehicle, wherein the inner wall of the conveying pipeline is uniformly provided with at least two guide rails along the circumferential direction, a heating cable is arranged in each guide rail in a penetrating manner, the middle part of the outer side of each guide rail is provided with a guide tooth groove, and the outer wall of the conveying pipeline, close to two ends, is provided with binding posts electrically connected with the heating cable; the walking dredging vehicle comprises two vehicle frames which are arranged side by side, each vehicle frame comprises an annular seat, a guide lug seat and a gear shaft, tooth parts of the gear shafts are meshed with guide tooth grooves in corresponding guide rails, and the vehicle frames are fixed with a solid storage box and a liquid storage box. According to the invention, the guide rail is additionally arranged in the conveying pipeline, and the guide rail can heat the edge part of the internal gelled crude oil while providing walking guide for the walking dredging vehicle, and can improve the success rate of pipeline restart by matching with the gas pressure generated by the gas generation system.
Description
Technical Field
The invention relates to the technical field of petrochemical industry, in particular to an auxiliary starting device for a hot wax-containing crude oil pipeline for petrochemical industry.
Background
Planned and accident shut-down are inevitable production processes in the operation of hot waxy crude oil pipelines. If the pipeline rush-repair time is too long after the pipeline is stopped, the temperature of the oil product in the pipeline is greatly reduced, the accident of 'pipe condensation' can be caused, and the great economic loss is caused. Therefore, it is necessary to design a pipeline starting aid to improve the success rate of pipeline starting, ensure the safety of pipeline operation, and reduce the economic loss caused by accidents. The temperature distribution rule of the hot oil pipeline is as follows: from the head end (out) to the tail end (in), the temperature in the pipe is gradually reduced, and under the normal condition, when hot oil enters the next heat pump station, the temperature is generally 2-3 ℃ higher than the condensation point of the conveyed oil. Therefore, once the transportation is stopped, the temperature of the oil near the tail end of the pipeline is easy to drop below the condensation point, a strong gel structure is formed, and the temperature of the oil near the head end of the pipeline is generally higher than the condensation point of the oil. Therefore, the length of the pipe requiring the auxiliary start is short.
The traditional mode of using mechanical type to arrange stifled, the spiral sword glues the crude oil that gelatinizes easily, not only can not make crude oil pipeline restart, still becomes new obstacle. Although gelled crude oil has greater structural strength, it has more pronounced thixotropic properties. Once a critical pressure gradient is reached, the structure rapidly yields and cracks. In the starting process of the oil pipeline, a starting pump is adopted to apply work to the crude oil pipeline, so that the crude oil pipeline has the starting pressure, gelled crude oil is cracked, and the starting is realized. However, the pressure provided by the prior art start-up pumps is often insufficient to crack the gelled crude after a long distance has been passed, and the pipeline restart success rate is low.
Therefore, patent specification with publication number CN105736896B discloses an auxiliary starting device for a petrochemical hot wax-containing crude oil pipeline, which comprises: the device comprises a frame, a liquid storage tank, a reaction tank, a control system and a propulsion system, wherein the propulsion system is arranged on the frame and used for pushing the frame to move; the liquid storage tank and the reaction tank are respectively arranged on the frame, the liquid storage tank is higher than the reaction tank, and the liquid storage tank is communicated with the reaction tank through a guide pipe; a cut-off valve is arranged on the conduit; the liquid storage box and the reaction box are respectively provided with reactants for reacting to generate gas; the reaction box is provided with an air outlet for air to flow out; the control system is respectively connected with the propulsion system and the cut-off valve.
The auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering still has the defects in use, and firstly, the gelled crude oil is cracked only by gas expansion pressure, so that the pipeline is easy to crack, and the potential safety hazard is high; secondly, a walking guide mechanism is not arranged, so that the walking vehicle is easy to turn over, and the gas reaction is influenced; thirdly, when the reaction substance is solid, the flowing feeding can not be realized, and the function of the stop valve is lost. Therefore, optimization improvements are needed.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide an auxiliary starting device for a hot wax-containing crude oil pipeline for petrochemical engineering.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the auxiliary starting device for the thermal wax-containing crude oil pipeline for the petrochemical industry comprises a conveying pipeline and a walking dredging vehicle, wherein at least two guide rails are uniformly arranged on the inner wall of the conveying pipeline along the circumferential direction, heating cables penetrate through the inner parts of the guide rails, a guide tooth groove is formed in the middle of the outer side of each guide rail, and binding posts electrically connected with the heating cables are arranged on the outer wall of the conveying pipeline close to two ends;
the walking dredging vehicle comprises two vehicle frames which are arranged side by side, each vehicle frame comprises an annular seat, a guide lug seat and a gear shaft, the guide lug seats are uniformly arranged on the outer side of each annular seat along the circumferential direction, the guide lug seats are clamped on the outer sides of the corresponding guide rails, the gear shafts are rotatably supported in the guide lug seats, and tooth parts of the gear shafts are meshed with guide tooth grooves in the corresponding guide rails;
two the inboard that the frame is located annular seat is fixed with the solid that is located the top through the inner mounting panel and deposits the case and the liquid that is located the below deposits the case, the bottom that the case was deposited to the solid is equipped with the inlet pipe of depositing the case intercommunication with liquid, the solid is deposited case, liquid and is deposited incasement portion storage respectively and is equipped with powder reactant and the liquid reactant that is used for reacting to generate gas.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, two ends of the conveying pipeline are provided with flanges which are convenient for sealing connection.
Further, in the auxiliary starting device for the petroleum pipeline containing wax for petrochemical industry, the heating cable is a silica gel carbon fiber electric heating wire.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, a ratchet mechanism for preventing the frame from rotating is arranged at the gear shaft and comprises a ratchet wheel and a non-return pawl, wherein the ratchet wheel is fixed on the gear shaft, a movable cavity is formed in the frame around the ratchet wheel, and the inner wall of the movable cavity is rotatably connected with the non-return pawl matched with the ratchet wheel.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, a feeding motor is fixed on the outer wall of a top plate of the solid storage box, an output shaft of the feeding motor is connected with a feeding shaft through a coupling, a screw blade is arranged on the outer side of a shaft body of the feeding shaft, which is positioned at the feeding pipe, the outer diameter of the screw blade is equal to the inner diameter of the feeding pipe, and a feeding pipe with a plugging cover is connected to the top plate of the solid storage box; the top plate of the liquid storage box is connected with a liquid feeding pipe with a blocking cover and an exhaust pipe, and a one-way air valve is arranged in the exhaust pipe.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, the bottom end of the feeding shaft extends into the liquid storage box, and stirring blades are uniformly distributed on the outer side of a shaft body of the feeding shaft, which is positioned in the liquid storage box; the feed shaft is made of a plastic material that does not chemically react with the liquid reactant.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, a conical head is fixed on the front side of the frame at the front end.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, a propeller is mounted on the rear side of the frame at the rear end through an outer mounting plate, and a driver and a storage battery are fixed on the frame; at least one gear shaft is a driving shaft, the driving shaft is fixedly connected with an output shaft of a driving motor fixed on the frame through a coupler, and the driver is respectively connected with the propeller, the storage battery and the driving motor.
Further, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, the conveying pipeline and the guide rail inside the conveying pipeline are of a split structure.
Furthermore, in the auxiliary starting device for the hot wax-containing crude oil pipeline for petrochemical engineering, the conveying pipeline and the guide rail inside the conveying pipeline are of an integrated structure.
The invention has the beneficial effects that:
the guide rail is additionally arranged in the conveying pipeline, the guide rail provides walking guide for the walking dredging vehicle by using the guide tooth grooves on the outer side, meanwhile, the edge of the internal gelled crude oil is heated by using the internal heating cable, and the success rate of restarting the pipeline can be improved by matching with the gas pressure generated by the gas generation system; on the other hand, the feeding speed of the powder reactant in the gas generation system is controllable, and the gas generation speed can be controlled by controlling the rotating speed of the feeding motor.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a conveying pipeline according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a guide rail according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a walking evacuation vehicle according to a first embodiment of the present invention;
FIG. 5 is a side view of the frame of the first embodiment of the present invention;
FIG. 6 is a schematic front view of the frame according to the first embodiment of the present invention;
FIG. 7 is a schematic overall structure diagram of a second embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a conveying pipeline according to a third embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a conveying pipeline according to a fourth embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a fifth embodiment of a guide rail according to the present invention;
in the figure: 1-conveying pipeline, 2-guide rail, 3-heating cable, 4-guide tooth groove, 5-binding post, 6-annular seat, 7-guide ear seat, 8-gear shaft, 9-inner mounting plate, 10-solid storage box, 101-feeding motor, 102-feeding shaft, 103-screw blade, 104-liquid feeding pipe, 11-liquid storage box, 111-liquid feeding pipe, 112-exhaust pipe, 12-cone head, 13-outer mounting plate and 14-propeller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 to 6, the present embodiment is an auxiliary starting device for a thermal wax-containing crude oil pipeline for petrochemical industry, and the auxiliary starting device comprises a conveying pipeline 1 and a walking dredging vehicle. Evenly be equipped with two guided way 2 along circumference in pipeline 1's inner wall, heating cable 3 is worn to be equipped with in guided way 2's inside, and direction tooth's socket 4 has been seted up at the outside middle part of guided way 2, and pipeline 1's outer wall is close to both ends and is equipped with terminal 5 with 3 electric connection of heating cable.
In this embodiment, the conveying pipelines 1 are straight pipes, and two adjacent conveying pipelines 1 are hermetically connected through a sealing sleeve pipe covering the outer sides of the conveying pipelines.
In this embodiment, heating cable 3 is silica gel carbon fiber electric heat line, and silica gel carbon fiber electric heat line adopts senior carbon fiber as the heat-generating body for the heating cable that the electric floor heating field was used commonly, has very high mechanical strength and extremely long life, and electric heat line light in weight, softness can bend into various shapes.
In this embodiment, walking dredging vehicle includes the frame of two settings side by side. The frame contains annular seat 6, direction ear seat 7 and gear shaft 8, and annular seat 6's the outside evenly is equipped with two direction ear seats 7 along circumference, and 7 joints of direction ear seat are in the outside that corresponds guided way 2, and rotate in the direction ear seat 7 and support gear shaft 8, the tooth portion of gear shaft 8 with correspond 4 intermeshing of direction tooth's socket in the guided way 2. The frame is located gear shaft 8 department and is equipped with the ratchet mechanism that prevents its gyration, and ratchet mechanism comprises ratchet, non return pawl, and wherein the ratchet is fixed on gear shaft 8, and the frame has seted up the activity chamber around the ratchet, and the inner wall rotation in activity chamber is connected with the non return pawl with ratchet complex.
In this embodiment, a solid storage tank 10 located above and a liquid storage tank 11 located below are fixed to the two frames on the inner side of the annular seat 6 by an inner mounting plate 9. The bottom of the solids storage tank 10 is provided with a feed pipe which communicates with the liquid storage tank 11. The solid storage box 10 and the liquid storage box 11 are respectively filled with a powder reactant and a liquid reactant for reacting to generate gas, wherein the powder reactant is aluminum sulfate powder, and the liquid reactant is sodium bicarbonate solution.
In this embodiment, a feeding motor 101 is fixed on the outer wall of the top plate of the solid storage box 10, an output shaft of the feeding motor 101 is connected with a feeding shaft 102 extending into the box body through a coupling, a spiral blade 103 is arranged on the outer side of the shaft body of the feeding shaft 102 located at the feeding pipe, and the outer diameter of the spiral blade 103 is equal to the inner diameter of the feeding pipe 102. When the spiral blade 103 does not rotate along with the feeding shaft 102, the spiral blade 103 can prevent the powder reactant from entering the liquid storage box 11, when the spiral blade 103 rotates along with the feeding shaft 102, the spiral blade can force the powder reactant to enter the liquid storage box 11, and the control of the gas generation speed can be realized by controlling the rotating speed of the feeding motor 101.
In this embodiment, the bottom end of the feeding shaft 102 extends into the liquid storage box 11, and stirring blades are uniformly distributed on the outer side of the shaft body of the feeding shaft 102 in the liquid storage box 11; the feed shaft 102 is made of a plastic material that does not chemically react with the liquid reactant.
In this embodiment, the top plate of the solid storage box 10 is connected to a feed pipe 104 with a cap, the top plate of the liquid storage box 11 is connected to a liquid feed pipe 111 with a cap and an exhaust pipe 112, and a one-way air valve is disposed in the exhaust pipe 112.
In this embodiment, a conical head 12 is fixed to the front side of the frame at the front end.
In this embodiment, the conveying pipeline 1 and the guide rail 2 inside the conveying pipeline are of a split structure, the conveying pipeline 1 is a circular pipeline, and the guide rail 2 is fixed on the inner wall of the conveying pipeline 1 in a welding mode.
One specific application of this embodiment is: the structure of the embodiment is reasonable in design, on one hand, the guide rail 2 is additionally arranged in the conveying pipeline 1, the guide rail 2 provides walking guide for the walking dredging vehicle by using the guide tooth grooves 4 on the outer side, and on the other hand, the edge of the internal gelled crude oil is heated by using the heating cable 3 in the guide rail, and the success rate of pipeline restart can be improved by matching with the gas pressure generated by the gas generation system; on the other hand, the feeding speed of the powder reactant in the gas generation system is controllable, and the gas generation speed can be controlled by controlling the rotating speed of the feeding motor 101.
Example two
The embodiment is a petrochemical is with supplementary starting drive of hot wax crude oil pipeline, including pipeline 1 and walking dredging vehicle. Evenly be equipped with two guided way 2 along circumference in pipeline 1's inner wall, heating cable 3 is worn to be equipped with in guided way 2's inside, and direction tooth's socket 4 has been seted up at the outside middle part of guided way 2, and pipeline 1's outer wall is close to both ends and is equipped with terminal 5 with 3 electric connection of heating cable.
In this embodiment, two ends of the conveying pipeline 1 are provided with flanges convenient for sealing connection.
In this embodiment, heating cable 3 is silica gel carbon fiber electric heat line, and silica gel carbon fiber electric heat line adopts senior carbon fiber as the heat-generating body for the heating cable that the electric floor heating field was used commonly, has very high mechanical strength and extremely long life, and electric heat line light in weight, softness can bend into various shapes.
In this embodiment, walking dredging vehicle includes the frame of two settings side by side. The frame contains annular seat 6, direction ear seat 7 and gear shaft 8, and annular seat 6's the outside evenly is equipped with two direction ear seats 7 along circumference, and 7 joints of direction ear seat are in the outside that corresponds guided way 2, and rotate in the direction ear seat 7 and support gear shaft 8, the tooth portion of gear shaft 8 with correspond 4 intermeshing of direction tooth's socket in the guided way 2. The frame is located gear shaft 8 department and is equipped with the ratchet mechanism that prevents its gyration, and ratchet mechanism comprises ratchet, non return pawl, and wherein the ratchet is fixed on gear shaft 8, and the frame has seted up the activity chamber around the ratchet, and the inner wall rotation in activity chamber is connected with the non return pawl with ratchet complex.
In this embodiment, a solid storage tank 10 located above and a liquid storage tank 11 located below are fixed to the two frames on the inner side of the annular seat 6 by an inner mounting plate 9. The bottom of the solids storage tank 10 is provided with a feed pipe which communicates with the liquid storage tank 11. The solid storage box 10 and the liquid storage box 11 are respectively filled with a powder reactant and a liquid reactant for reacting to generate gas, wherein the powder reactant is aluminum sulfate powder, and the liquid reactant is sodium bicarbonate solution.
In this embodiment, a feeding motor 101 is fixed on the outer wall of the top plate of the solid storage box 10, an output shaft of the feeding motor 101 is connected with a feeding shaft 102 extending into the box body through a coupling, a spiral blade 103 is arranged on the outer side of the shaft body of the feeding shaft 102 located at the feeding pipe, and the outer diameter of the spiral blade 103 is equal to the inner diameter of the feeding pipe 102. When the spiral blade 103 does not rotate along with the feeding shaft 102, the spiral blade 103 can prevent the powder reactant from entering the liquid storage box 11, when the spiral blade 103 rotates along with the feeding shaft 102, the spiral blade can force the powder reactant to enter the liquid storage box 11, and the control of the gas generation speed can be realized by controlling the rotating speed of the feeding motor 101.
In this embodiment, the bottom end of the feeding shaft 102 extends into the liquid storage box 11, and stirring blades are uniformly distributed on the outer side of the shaft body of the feeding shaft 102 in the liquid storage box 11; the feed shaft 102 is made of a plastic material that does not chemically react with the liquid reactant.
In this embodiment, the top plate of the solid storage box 10 is connected to a feed pipe 104 with a cap, the top plate of the liquid storage box 11 is connected to a liquid feed pipe 111 with a cap and an exhaust pipe 112, and a one-way air valve is disposed in the exhaust pipe 112.
In this embodiment, a conical head 12 is fixed to the front side of the frame at the front end.
In this embodiment, the conveying pipeline 1 and the guide rail 2 inside the conveying pipeline are of a split structure, the conveying pipeline 1 is a circular pipeline, and the guide rail 2 is fixed on the inner wall of the conveying pipeline 1 in a welding mode.
As shown in fig. 7, a propeller 14 is mounted on the rear side of the frame at the rear end through an outer mounting plate 13, and a driver and a storage battery are fixed on the frame; at least one gear shaft 6 is a driving shaft, the driving shaft 6 is fixedly connected with an output shaft of a driving motor fixed on the frame through a coupler, and a driver is respectively connected with the propeller 14, the storage battery and the driving motor.
EXAMPLE III
The structure and application of the embodiment are basically the same as those of the first embodiment, and the difference is shown in fig. 8, and the embodiment is an auxiliary starting device for a petrochemical hot wax-containing crude oil pipeline, and comprises a conveying pipeline 1 and a walking dredging vehicle. Evenly be equipped with three guided way 2 along circumference in pipeline 1's inner wall, heating cable 3 is worn to be equipped with in guided way 2's inside, and direction tooth's socket 4 has been seted up at the outside middle part of guided way 2, and pipeline 1's outer wall is close to both ends and is equipped with terminal 5 with 3 electric connection of heating cable.
In this embodiment, heating cable 3 is silica gel carbon fiber electric heat line, and silica gel carbon fiber electric heat line adopts senior carbon fiber as the heat-generating body for the heating cable that the electric floor heating field was used commonly, has very high mechanical strength and extremely long life, and electric heat line light in weight, softness can bend into various shapes.
In this embodiment, two ends of the conveying pipeline 1 are provided with flanges convenient for sealing connection.
Example four
The structure and application of the embodiment are basically the same as those of the first embodiment, and the difference is shown in fig. 9, and the embodiment is an auxiliary starting device for a petrochemical hot wax-containing crude oil pipeline, and comprises a conveying pipeline 1 and a walking dredging vehicle. Evenly be equipped with four guided way 2 along circumference in pipeline 1's inner wall, heating cable 3 is worn to be equipped with in guided way 2's inside, and direction tooth's socket 4 has been seted up at the outside middle part of guided way 2, and pipeline 1's outer wall is close to both ends and is equipped with terminal 5 with 3 electric connection of heating cable.
In this embodiment, heating cable 3 is silica gel carbon fiber electric heat line, and silica gel carbon fiber electric heat line adopts senior carbon fiber as the heat-generating body for the heating cable that the electric floor heating field was used commonly, has very high mechanical strength and extremely long life, and electric heat line light in weight, softness can bend into various shapes.
In this embodiment, the conveying pipelines 1 are straight pipes, and two adjacent conveying pipelines 1 are hermetically connected through a sealing sleeve pipe covering the outer sides of the conveying pipelines.
EXAMPLE five
The structure and application of this embodiment are basically the same as those of embodiment one, and the difference is that this embodiment is a petrochemical uses hot wax-containing crude oil pipeline auxiliary starting device, including pipeline 1 and walking dredging vehicle. Evenly be equipped with two guided way 2 along circumference in pipeline 1's inner wall, heating cable 3 is worn to be equipped with in guided way 2's inside, and direction tooth's socket 4 has been seted up at the outside middle part of guided way 2, and pipeline 1's outer wall is close to both ends and is equipped with terminal 5 with 3 electric connection of heating cable.
In this embodiment, two ends of the conveying pipeline 1 are provided with flanges convenient for sealing connection.
In this embodiment, heating cable 3 is silica gel carbon fiber electric heat line, and silica gel carbon fiber electric heat line adopts senior carbon fiber as the heat-generating body for the heating cable that the electric floor heating field was used commonly, has very high mechanical strength and extremely long life, and electric heat line light in weight, softness can bend into various shapes.
As shown in fig. 10, in the present embodiment, the conveying pipe 1 and the guide rail 2 inside the conveying pipe are integrated, the guide rail 2 is formed by inward protrusion of the conveying pipe 1, the guide rail 2 is formed and simultaneously generates a mounting area for mounting the heating cable 3 therein, and an opening of the mounting area is filled with a heat insulation strip.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a petrochemical is with supplementary starting drive of hot wax-bearing crude oil pipeline, includes pipeline and walking dredging vehicle, its characterized in that: the inner wall of the conveying pipeline is uniformly provided with at least two guide rails along the circumferential direction, heating cables penetrate through the inner parts of the guide rails, a guide tooth groove is formed in the middle of the outer side of each guide rail, and binding posts electrically connected with the heating cables are arranged on the outer wall of the conveying pipeline close to the two ends;
the walking dredging vehicle comprises two vehicle frames which are arranged side by side, each vehicle frame comprises an annular seat, a guide lug seat and a gear shaft, the guide lug seats are uniformly arranged on the outer side of each annular seat along the circumferential direction, the guide lug seats are clamped on the outer sides of the corresponding guide rails, the gear shafts are rotatably supported in the guide lug seats, and tooth parts of the gear shafts are meshed with guide tooth grooves in the corresponding guide rails;
two the inboard that the frame is located annular seat is fixed with the solid that is located the top through the inner mounting panel and deposits the case and the liquid that is located the below deposits the case, the bottom that the case was deposited to the solid is equipped with the inlet pipe of depositing the case intercommunication with liquid, the solid is deposited case, liquid and is deposited incasement portion storage respectively and is equipped with powder reactant and the liquid reactant that is used for reacting to generate gas.
2. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 1, characterized in that: and two ends of the conveying pipeline are provided with flanges which are convenient for sealing connection.
3. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 1, characterized in that: the heating cable is a silica gel carbon fiber electric heating wire.
4. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 1, characterized in that: the frame is located gear shaft department and is equipped with the ratchet mechanism that prevents its gyration, ratchet mechanism comprises ratchet, non return pawl, and wherein the ratchet is fixed on the gear shaft, the frame has seted up the activity chamber around the ratchet, and the inner wall rotation in activity chamber is connected with the non return pawl with ratchet complex.
5. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 1, characterized in that: a feeding motor is fixed on the outer wall of a top plate of the solid storage box, an output shaft of the feeding motor is connected with a feeding shaft through a coupling, a screw blade is arranged on the outer side of a shaft body of the feeding shaft, which is positioned at the position of the feeding pipe, the outer diameter of the screw blade is equal to the inner diameter of the feeding pipe, and the top plate of the solid storage box is connected with a feeding pipe with a plugging cover; the top plate of the liquid storage box is connected with a liquid feeding pipe with a blocking cover and an exhaust pipe, and a one-way air valve is arranged in the exhaust pipe.
6. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 5, characterized in that: the bottom end of the feeding shaft extends into the liquid storage box, and stirring blades are uniformly distributed on the outer side of a shaft body of the feeding shaft in the liquid storage box; the feed shaft is made of a plastic material that does not chemically react with the liquid reactant.
7. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 1, characterized in that: a cross-shaped conical head is fixed on the front side of the frame at the front end.
8. The petrochemical industry hot waxy crude oil pipeline auxiliary starting device according to claim 1, characterized in that: the rear side of the frame at the rear end is provided with a propeller through an outer mounting plate, and a driver and a storage battery are fixed on the frame; at least one gear shaft is a driving shaft, the driving shaft is fixedly connected with an output shaft of a driving motor fixed on the frame through a coupler, and the driver is respectively connected with the propeller, the storage battery and the driving motor.
9. The auxiliary starting device for the thermal wax-containing crude oil pipeline for petrochemical engineering according to any one of claims 1 to 8, wherein: the conveying pipeline and the guide rail inside the conveying pipeline are of a split structure.
10. The auxiliary starting device for the thermal wax-containing crude oil pipeline for petrochemical engineering according to any one of claims 1 to 8, wherein: the conveying pipeline and the guide rail inside the conveying pipeline are of an integrated structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110191076.7A CN112984272A (en) | 2021-02-19 | 2021-02-19 | Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110191076.7A CN112984272A (en) | 2021-02-19 | 2021-02-19 | Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry |
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| CN112984272A true CN112984272A (en) | 2021-06-18 |
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| CN202110191076.7A Withdrawn CN112984272A (en) | 2021-02-19 | 2021-02-19 | Auxiliary starting device for hot wax-containing crude oil pipeline for petrochemical industry |
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| CN (1) | CN112984272A (en) |
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