CN114738586A - Pipeline heating device - Google Patents
Pipeline heating device Download PDFInfo
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- CN114738586A CN114738586A CN202110017426.8A CN202110017426A CN114738586A CN 114738586 A CN114738586 A CN 114738586A CN 202110017426 A CN202110017426 A CN 202110017426A CN 114738586 A CN114738586 A CN 114738586A
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- baffle plates
- sealing
- tubular shell
- wall
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 117
- 238000007789 sealing Methods 0.000 claims abstract description 44
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- 238000012856 packing Methods 0.000 claims description 21
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
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- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
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Images
Classifications
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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
- F16L53/32—Heating of pipes or pipe systems using hot fluids
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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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The application discloses pipeline heating device belongs to the pipeline field. The pipe heating device includes: the sealing device comprises a tubular shell and two sealing plates, wherein the two sealing plates cover openings at two ends of the tubular shell; the sealing plate is provided with a pipeline through hole and a sealing assembly positioned at the pipeline through hole, and the sealing assembly is used for forming sealing with a pipeline; the shell wall of the tubular shell is provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet are respectively positioned at two ends of the shell wall in the length direction of the tubular shell; the inner wall of the tubular shell is provided with a plurality of baffle plates, and the tubular shell is composed of at least two sub-shells formed by dividing an axial plane. The problem of in the correlation technique construction completion back just difficult change heating position is solved, reached the beneficial effect that can nimble dismouting pipeline heating device.
Description
Technical Field
The application relates to the field of pipelines, in particular to a pipeline heating device.
Background
The shale gas is an energy resource which exists in the organic-rich shale and the interlayer thereof again, takes an adsorption state and a free state as main existing modes and takes methane as a main component, when the shale gas is extracted from a shale gas well, the shale gas has higher pressure, the pressure of the shale gas is usually reduced through pipeline throttling, the pipeline throttling refers to that a plurality of throttling valves are sequentially arranged in a pipeline for transporting the shale gas connected with the mouth of the shale gas well, and the diameter of a valve passage through which the shale gas passes is reduced by adjusting the opening of the throttling valves, so that the pressure of the shale gas is reduced. However, in the throttling process, the diameter of the valve passage is reduced to form pressure difference, and the flow velocity of the shale gas is increased, so that water molecules in the shale gas are separated out and crystallized at low temperature, and the ice blockage phenomenon is caused in the valve and the pipeline. The ice blockage problem is currently typically addressed by heating the gas in the pipe during throttling.
A pipeline heating device in the related art comprises a heating barrel, a central pipeline and two flanges, wherein the central pipeline is positioned in the heating barrel, and the two flanges are respectively arranged at two ends of the heating barrel and are used for being connected with a gas transmission pipeline in series; the heating barrel comprises an air inlet and a water outlet, hot steam is injected into the heating barrel through the air inlet, and cooled saturated water flows out through the water outlet. After entering the central pipeline from the gas transmission pipeline, the shale gas is heated by hot steam in the annular space between the central pipeline and the heating barrel in the process of flowing through the central pipeline, and then flows out of the other end of the central pipeline to the gas transmission pipeline.
However, the pipe heating apparatus of the related art is connected in series with the pipe and installed in series with the gas pipe during the construction of the gas pipe network, and thus it is difficult to replace the heating position after the construction is completed.
Disclosure of Invention
The embodiment of the application provides a pipeline heating device. The technical scheme is as follows:
in a first aspect, there is provided a pipe heating apparatus comprising:
the sealing device comprises a tubular shell and two sealing plates, wherein the two sealing plates cover openings at two ends of the tubular shell;
the sealing plate is provided with a pipeline through hole and a sealing assembly positioned at the pipeline through hole, and the sealing assembly is used for forming sealing with a pipeline;
the shell wall of the tubular shell is provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet are respectively positioned at two ends of the shell wall in the length direction of the tubular shell;
the inner wall of the tubular shell is provided with a plurality of baffle plates, and the tubular shell is composed of at least two sub-shells formed by dividing an axial plane.
Optionally, the plurality of baffles includes at least one set of first baffles and at least one set of second baffles;
each group of the first baffle plates comprises two first baffle plates which are oppositely arranged on two sides of the axis of the tubular shell;
each set of the second baffle plates comprises two second baffle plates which are oppositely arranged on two sides of the axis of the tubular shell.
Optionally, a connection line between each group of the first baffle plates is perpendicular to a connection line between each group of the second baffle plates.
Optionally, each group of the first baffle plates and each group of the second baffle plates are arranged in a staggered manner.
Optionally, two first baffle plates in each group of first baffle plates are arranged in a staggered manner;
two second baffle plates in each group of second baffle plates are arranged in a staggered mode.
Optionally, each baffle is in a fan-shaped ring shape, and the central angle of the fan-shaped ring is 45 degrees;
the distance between the side of the baffle close to the axis of the tubular shell and the outer wall of the pipeline is greater than or equal to 1 mm.
Optionally, an included angle between the baffle plate and the inner wall of the tubular housing is 63 degrees.
Optionally, the seal assembly comprises a packing box.
Optionally, the tubular housing has an insulating layer in the wall.
Optionally, the tubular housing further has a water outlet.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the utility model provides a pipeline heating device, with at least two subshells of tubular shell around the pipeline butt joint, and with the closing plate formation heating space, hot steam gets into the heating space that tubular shell and two closing plate covers enclose from steam inlet, seal assembly can avoid the hot steam in the heating space to leak, make the hot steam that is located in the heating space can heat the fluid in the pipeline, hot steam passes through a plurality of baffling boards that set up on tubular shell inner wall when flowing in the heating space, the contact area and the flow duration of hot steam in the heating space have been increased, thereby increased the heating capacity to the fluid in the pipeline. After the heating function is realized, the lower pipeline heating device can be detached from the pipeline by detaching the at least two buckled sub-shells. The problem of in the correlation technique construction completion back just difficult change heating position is solved, reached the beneficial effect that can nimble dismouting pipeline heating device.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural view of a pipe heating apparatus in the related art;
fig. 2 is a schematic structural diagram of a pipeline heating device according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another pipeline heating device provided in an embodiment of the present application;
FIG. 4 is a schematic view of the structure of the outer surface of the pipe heating apparatus shown in FIG. 3;
fig. 5 is a partial structural view of the pipe heating apparatus of fig. 3.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Shale gas is typically produced using hydraulic fracturing techniques by flooding a shale formation with a large amount of water doped with chemicals to hydraulically fracture, thereby releasing shale gas, which typically carries water molecules with it. Because pressure is too high when shale gas is exported from the well head, can reduce shale gas pressure through the mode of throttle when the pipeline is carried to the process, the throttle is multistage throttle, also reduces shale circulation of gas diameter step by step, sets up the choke valve in the junction between each section pipeline, makes the gas flow passage reduce step by step through control valve's opening degree. The pipeline connected with the wellhead is a first-level throttling pipeline, and sequentially reduces to a second-level throttling pipeline, a third-level throttling pipeline and the like along with the reduction of the gas circulation channel.
Fig. 1 is a schematic structural view of a pipeline heating apparatus in the related art. Two ends of the central pipeline 12 are respectively connected with the primary throttling pipeline 13 and the secondary throttling pipeline 14 in series through flanges, hot steam enters an annular space 121 between the heater 11 and the central pipeline 12 from the air inlet 111 to heat shale gas passing through the central pipeline 12, and saturated water formed by the hot steam after cooling in the annular space 121 is discharged through the water outlet 112. Because the pipeline heating device in the related art is connected in series with the primary throttling pipeline 13 and the secondary throttling pipeline 14, when a gas pipeline of the shale gas well is constructed, the pipeline heating device is connected with the primary throttling pipeline 13 and the secondary throttling pipeline 14, so that the pipeline heating device, the primary throttling pipeline 13 and the secondary throttling pipeline 14 form an integrated structure.
However, when the shale gas pressure of the well is not high in the later exploitation stage, and the output shale gas does not need to be heated, the pipeline heating device which is connected in series cannot be disassembled, so that the pipeline heating device cannot be disassembled to heat other well mouth throttling pipelines. That is, the pipeline heating device in the related art can not be flexibly reused, and the cost of shale gas heating is increased.
Embodiments of the present application provide a pipeline heating device, which can solve the problems in the related art described above.
Fig. 2 is a schematic structural diagram of a pipeline heating device according to an embodiment of the present application. The pipe heating apparatus may include:
a tubular casing 10 and two sealing plates 20, the two sealing plates 20 covering openings at both ends of the tubular casing 10.
The sealing plate 20 has a pipe through hole 21 and a sealing assembly 22 at the pipe through hole 21, the sealing assembly 22 being used to form a seal with the pipe.
The tubular housing 10 has a steam inlet 11 and a steam outlet 12 in the wall thereof, the steam inlet 11 and the steam outlet 12 being located at opposite ends of the wall of the tubular housing 10 in the longitudinal direction thereof.
The tubular housing 10 is provided with a plurality of baffles 30 on the inner wall thereof, and the tubular housing 10 is formed by at least two sub-housings divided by an axial plane.
To sum up, the embodiment of the present application provides a pipeline heating device, at least two sub-housings of a tubular housing are buckled around a pipeline, and form a heating space with a sealing plate, hot steam enters the heating space enclosed by the tubular housing and the two sealing plate covers from a steam inlet, a sealing assembly can avoid the hot steam in the heating space from leaking, so that the hot steam in the heating space can heat fluid in the pipeline, the hot steam flows in the heating space through a plurality of baffle plates arranged on the inner wall of the tubular housing, the contact area and the flowing time of the hot steam in the heating space are increased, and the heating capacity of the fluid in the pipeline is increased. After the heating function is realized, the lower pipeline heating device can be detached from the pipeline by detaching the at least two buckled sub-shells. The problem of in the correlation technique construction completion back just difficult change heating position is solved, reached the beneficial effect that can nimble dismouting pipeline heating device.
Optionally, the plurality of baffles includes at least one set of first baffles and at least one set of second baffles;
each group of first baffle plates comprises two first baffle plates which are oppositely arranged on two sides of the axis of the tubular shell;
each set of second baffle plates comprises two second baffle plates which are oppositely arranged on two sides of the axis of the tubular shell.
Optionally, a connecting line between each group of the first baffle plates is perpendicular to a connecting line between each group of the second baffle plates.
Optionally, each group of first baffle plates and each group of second baffle plates are arranged in a staggered manner.
Optionally, two first baffle plates in each group of first baffle plates are arranged in a staggered manner;
two second bafflers in every group second baffler are crisscross to be set up.
Optionally, each baffle plate is in a fan-shaped ring shape, and the central angle is 45 degrees;
the distance between the side of the baffle close to the axis of the tubular casing and the outer wall of the duct is greater than or equal to 1 mm.
Optionally, the angle between the baffle and the inner wall of the tubular housing is 63 degrees.
Optionally, the seal assembly comprises a packing box.
Optionally, the tubular housing has an insulating layer in the wall.
Optionally, the tubular housing further has a water outlet.
Please refer to fig. 3, which illustrates a schematic structural diagram of another pipeline heating apparatus provided in the embodiment of the present application.
Optionally, the plurality of baffles 30 includes at least one set of first baffles 31 and at least one set of second baffles 32; each set of first baffle plates 31 includes two first baffle plates 311 and 312 oppositely disposed on both sides of the axis of the tubular housing; each set of the second baffle plates 32 includes two second baffle plates 321 and 322 disposed on opposite sides of the axis of the tubular housing. When the pipeline heating device is buckled on the gathering and transportation pipeline 50, the baffle plates 30 are sequentially arranged in a staggered mode along the axial direction of the gathering and transportation pipeline 50, when hot steam enters from the steam inlet 11, the hot steam flows through each baffle plate, the flowing area of the hot steam is increased, the staying time of the hot steam in the pipeline heating device is prolonged, and fluid in the gathering and transportation pipeline is heated.
Optionally, a line between each group of the first baffle plates 31 is perpendicular to a line between each group of the second baffle plates 32. The connecting line between each group of the first baffle plates 31 and the connecting line between each group of the second baffle plates 32 are not perpendicular to the axis of the tubular housing.
Optionally, each set of first baffle plates 31 is staggered with each set of second baffle plates 32. The two first baffle plates 311 and 312 of each set of first baffle plates 31 are staggered from the two second baffle plates 321 and 322 of each set of second baffle plates 32.
Optionally, the two first baffle plates 321 and 322 in each set of first baffle plates 31 are disposed alternately; the two second baffle plates 321 and 322 of each set of second baffle plates 32 are disposed alternately. Wherein two baffling boards in each group of baffling board also are crisscross setting, and when pipeline heating device was buckled on gathering pipeline 50, a plurality of baffling boards can form the spiral along gathering pipeline 50 axis direction, and hot steam all can be sheltered from by the baffling board when 360 degrees flow around gathering pipeline 50 axis direction heat gathering pipeline fluid, the effect that the baffling board increased hot steam dwell duration that can be very big.
Optionally, each baffle plate is in a fan-shaped ring shape, and the central angle is 45 degrees; the distance between the side of the baffle close to the axis of the tubular casing and the outer wall of the duct is greater than or equal to 1 mm. One end of each baffle plate is connected with the inner wall of the tubular shell 10, and as the tubular shell 10 is a cylindrical shell and the connection part of the baffle plate and the inner wall of the tubular shell 10 is also in the shape of an arc, when the baffle plate is in the shape of a sector ring, the connection end of the baffle plate and the inner wall of the tubular shell 10 is also in the shape of an arc, which is convenient for connection. If the baffle is square or rectangular, the baffle cannot be completely in contact with the inner wall of the tubular housing 10, and therefore, the connection between the baffle and the inner wall of the tubular housing 10 may not be firm enough, and when the pipeline heating device is buckled or disassembled, the tubular housing 10 rotates along the axis direction of the gathering and transportation pipeline 50, and one end of the square baffle, which is close to the gathering and transportation pipeline 50, collides with the outer wall of the gathering and transportation pipeline 50 in the process of rotating along with the tubular housing, thereby causing damage to the gathering and transportation pipeline 50 and the baffle. Therefore, the baffle plate in the shape of a sector ring is used in the embodiment of the present application, and other shapes of baffle plates can also be used, and the embodiment of the present application is not limited herein.
The baffle plate is far away from one end of the inner wall of the tubular shell 10, namely the side of the baffle plate close to the axis of the tubular shell is close to the gathering and transportation pipeline 50, and the arc-shaped side of the fan-shaped baffle plate is the same as the radian of the outer wall of the gathering and transportation pipeline 50, so that when the pipeline is buckled and the pipeline heating device is taken down, the baffle plate cannot collide with the outer wall of the gathering and transportation pipeline 50, and the service life of the baffle plate is prolonged. The distance between the edge of the baffle close to the axis of the tubular housing 10 and the outer wall of the gathering and transportation duct 50 may be 1mm, so as to avoid friction between the baffle and the outer wall of the gathering and transportation duct 50 during the snapping-in and removal of the tubular housing 10. The baffle may have other distances between the side of the baffle close to the axis of the tubular housing 10 and the outer wall of the gathering and transporting pipe 50, and the embodiment of the present application is not limited thereto. The baffle plate may be a stainless steel plate, or may be made of other materials, and the embodiment of the present application is not limited herein.
Optionally, the angle between the baffle and the inner wall of the tubular housing 10 is 63 degrees. The inclined direction of the baffle plate is inclined from the steam inlet 11 to the steam outlet 12 of the tubular shell 10, hot steam enters the pipeline heating device from the steam inlet 11, if the included angle between the baffle plate and the inner wall of the tubular shell 10 is 90 degrees, and when the amount of the hot steam is large, the hot steam rushes into the pipeline heating device and collides with the baffle plate, so that the baffle plate generates vibration, and noise is generated. The inclined baffle plate can better avoid collision between the hot steam and the baffle plate, thereby reducing vibration of the baffle plate and reducing noise. The angle of the included angle between the baffle plate and the inner wall of the tubular housing 10 can be obtained by a calculation model in the related art, so as to select an angle that can increase the circulation time of the hot steam and simultaneously avoid the noise generated by the baffle plate, and the specific angle value is related to the total number of the baffle plate in the pipeline heating device, the temperature of the hot steam and the like, and the embodiment of the application is not limited herein.
In addition, each baffle may be detachably connected to the inner wall of the tubular housing 10. The inner wall of the tubular housing 10 may include a plurality of notches, each of which may engage one side of one of the baffles. The total number of the baffle plates in the pipeline heating device influences the duration that the hot steam is located in the pipeline heating device, so that the total length of the temperature of crude oil in the current pipeline, the temperature of the hot steam and the total length of the pipeline heating device in the axial direction influence the number of the baffle plates, the total number of the baffle plates in the pipeline heating device can be calculated through a model of the related art, and the number of the baffle plates is 11 in the embodiment of the application. Because the number of the baffle plates is large, and the number of the baffle plates in the pipeline heating device can be different under different conditions, when the baffle plates are detachably connected with the inner wall of the tubular shell 10, the configuration of the pipeline heating device can be flexibly changed by detaching and installing the baffle plates with different numbers, so that one pipeline heating device is repeatedly used on gathering and transportation pipelines with different working conditions for many times, and the flexibility of the pipeline heating device is greatly increased. The baffle plate and the inner wall of the tubular housing 10 may also be other detachable connections, and may also be fixed connections such as welded connections, etc. to increase the stability of the baffle plate, and the specific connection mode is not limited in this embodiment of the present application.
Optionally, the tubular housing 10 has an insulating layer in the wall. The tubular casing 10 may include a first casing 14 and a second casing 15, wherein an inner wall of the first casing 14 is connected to the baffle plate, and an annular space between the second casing 15 and the first casing 14 is filled with a thermal insulation material 13 to form a thermal insulation layer of the pipe heating apparatus, and the thermal insulation layer may reduce a cooling rate of hot steam in the pipe heating apparatus, so that an injection amount of the hot steam may be saved, thereby saving energy. The second casing 15 may be made of stainless steel, and the second casing 15 is an outermost layer of the pipe heating apparatus, so that the pipe heating apparatus may be better protected by the second casing 15 having certain strength and corrosion resistance, and the service life of the pipe heating apparatus may be prolonged. The material of the first casing 14 is carbon steel, and the second casing 15 may be the same as the first casing 14, and the specific material is not limited herein. The heat insulating material 13 in the embodiment of the present application is a rubber plastic material, and may also be other heat insulating materials such as heat insulating cotton, and the embodiment of the present application is not limited herein.
Fig. 4 is a schematic view of the structure of the outer surface of the pipe heating apparatus in fig. 3.
The second housing further includes a handle 151, a butt seal 152, a butterfly bolt 153, a butt seal plate 154, and a connection bolt 155 between the first and second housings. Set up handle 151 at the second shell and can be more convenient for operate when tubulose shell is detained or is opened, because the tubulose shell includes two at least sub-shells, carry out the detain with two sub-shells during the detain promptly and connect, annular space department between first shell and the second shell is provided with insulation material, for avoiding opening back insulation material at two sub-shells and revealing, can set up the butt seal board 154 with two relative faces between first shell and the second shell, butt seal board 154 one end and first shell welded connection, one end passes through butterfly bolt 153 with the second shell and is connected, when changing insulation material, can pull down butterfly bolt 153. A space between the first housing and the second housing is exposed. The butt seal 154 may increase the sealing performance of the tubular housing after being butted.
Optionally, the tubular housing also has a water outlet 16. When the hot steam heats the fluid in the gathering and transportation pipeline 50 in the pipeline heating device, because the temperature of the fluid in the gathering and transportation pipeline 50 is lower, part of the hot steam can be cooled into saturated water, the cooled saturated water can flow out from the water outlet 16 on the tubular shell, the water outlet 16 can be connected with a steam vehicle (not shown in the figure) for producing the hot steam, the cooled saturated water directly flows into a water storage tank in the steam vehicle from the water outlet 16 to be used as the water to be heated for recycling, the water for the hot steam can be greatly saved, and therefore the water resource is saved.
Optionally, the tubular housing also has overflow apertures 17. The hot steam is injected into the pipeline heating device at a certain injection pressure, so that a certain pressure exists in the pipeline heating device, the flow of the steam can be influenced when the pressure value is overlarge, an overflow hole 17 can be arranged, and the overflow valve 171 on the overflow hole 17 is opened when the medium pressure of the pipeline heating device is overlarge to release the pressure in the pipeline heating device. The overflow hole 17 is provided with a valve seat 172, and the overflow valve 171 can be a threaded plug-in type overflow valve, and is convenient to connect with the valve seat 172.
Alternatively, the number of steam inlets on the tubular housing 10 is two. The two steam inlets are arranged oppositely, so that hot steam can be input from different directions simultaneously, the hot steam flows more uniformly, and the fluid is heated comprehensively along the circumferential direction of the gathering and transportation pipeline 50. The two steam inlets comprise a quick release joint 1111 and a support 1112, the support 1112 penetrates through the tubular casing 10 and is connected with the tubular casing 10 in a welding mode, and the quick release joint 1111 is installed on the support 1112 and is used for being detachably connected with a steam conveying pipeline of a steam vehicle.
Fig. 5 is a partial structural view of the pipe heating apparatus of fig. 3.
Optionally, the seal assembly includes a packing box 221. The packing box 221 is a sealing box that seals the arc-shaped connection between the gathering pipe 50 and the sealing plate 20. Including packing 2211 in the packing box 221, packing 2211 is the sealing material that a linear article were woven, and packing box 221 in this application embodiment is half-section packing box, and packing box and gathering pipeline 50 laminating compress tightly packing 2211 and gathering pipeline 50 through packing in the packing box 221 and compress tightly gasket 2212, seal the binding face.
The seal assembly further comprises a seal ring 222 and a packing box connecting bolt 223, the seal ring 222 used in the embodiment of the present application is an end face O-shaped seal ring, the end face O-shaped seal ring is located between the packing box 221 and the sealing plate 20, and the end faces of the packing box 221 and the sealing plate 20 can be sealed, so that the hot steam is prevented from leaking from the connection position of the packing box 221 and the sealing plate 20. The packing box coupling bolt 223 passes through the packing box 221 to couple the packing box 221 to the sealing plate 20.
The sealing plate 20 may include first and second sub-sealing plates 23 and 24, and an insulation material 25 between the first and second sub-sealing plates 23 and 24. The first sub sealing plate 23 is connected to the second casing of the tubular casing, the second sub sealing plate 24 is connected to the first casing of the tubular casing, and the thermal insulation material 25 and the thermal insulation material in the tubular casing may be the same thermal insulation material. The seal plate and the tubular housing may be welded.
To sum up, the embodiment of the present application provides a pipeline heating device, at least two sub-housings of a tubular housing are buckled around a pipeline, and form a heating space with a sealing plate, hot steam enters the heating space enclosed by the tubular housing and the two sealing plate covers from a steam inlet, a sealing assembly can avoid the hot steam in the heating space from leaking, so that the hot steam in the heating space can heat fluid in the pipeline, the hot steam flows in the heating space through a plurality of baffle plates arranged on the inner wall of the tubular housing, the contact area and the flowing time of the hot steam in the heating space are increased, and the heating capacity of the fluid in the pipeline is increased. After the heating function is realized, the lower pipeline heating device can be detached from the pipeline by detaching the at least two buckled sub-shells. The problem of in the correlation technique construction completion back just difficult heating position of changing is solved, the beneficial effect that can nimble dismouting pipeline heating device has been reached.
The specific steps when using the pipeline heating device in any of the above embodiments of the present application are as follows:
1. and connecting the two sub-shells of the tubular shell in a buckling manner around the gathering and transportation pipeline.
After the gathering and transportation pipeline needing to be heated is determined, the two sub-shells are connected in a buckling mode, and the pipeline heating device is installed on the gathering and transportation pipeline.
2. Hot steam is injected from the steam inlet and is discharged from the steam outlet after passing through the plurality of baffle plates.
The plurality of baffles increases the length of time that the hot steam stays in the pipe heating apparatus, thereby allowing heat exchange efficiency to be improved. Saturated water cooled by the hot steam is discharged into the steam vehicle from the water outlet, and the saturated water is recycled, so that water resources are greatly saved.
3. And opening the two sub-shells connected in the buckling manner, and detaching the pipeline heating device.
When the current gathering and transportation pipeline does not need to be heated, the two sub-shells connected in a buckling mode can be opened, and the pipeline heating device is installed on another section of gathering and transportation pipeline to be heated again.
The pipeline heating device in this application can be installed and dismantled at any time, can not damage the defeated pipe network of collection, can utilize in a flexible way, and through setting up a plurality of baffling boards and heat preservation, it is long when having increased hot steam's heat transfer rate and cooling, has reduced hot steam's input to the energy consumption of heating hot steam has been reduced.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is intended to be exemplary only, and not to limit the present application, and any modifications, equivalents, improvements, etc. made within the spirit and scope of the present application are intended to be included therein.
Claims (10)
1. A pipe heating apparatus, comprising:
the sealing device comprises a tubular shell and two sealing plates, wherein the two sealing plates cover openings at two ends of the tubular shell;
the sealing plate is provided with a pipeline through hole and a sealing assembly positioned at the pipeline through hole, and the sealing assembly is used for forming sealing with a pipeline;
the shell wall of the tubular shell is provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet are respectively positioned at two ends of the shell wall in the length direction of the tubular shell;
the inner wall of the tubular shell is provided with a plurality of baffle plates, and the tubular shell is composed of at least two sub-shells formed by dividing an axial plane.
2. The pipe heating apparatus of claim 1, wherein the plurality of baffles comprises at least one set of first baffles and at least one set of second baffles;
each group of the first baffle plates comprises two first baffle plates which are oppositely arranged on two sides of the axis of the tubular shell;
each set of the second baffle plates comprises two second baffle plates which are oppositely arranged on two sides of the axis of the tubular shell.
3. The pipe heating apparatus of claim 2, wherein a line between each set of the first baffle plates is perpendicular to a line between each set of the second baffle plates.
4. The pipe heating apparatus of claim 2, wherein each set of the first baffle plates is staggered from each set of the second baffle plates.
5. The pipe heating apparatus of claim 4, wherein two first baffle plates of each set of the first baffle plates are staggered;
two second baffle plates in each group of second baffle plates are arranged in a staggered mode.
6. The pipe heating apparatus according to any one of claims 1 to 5, wherein each of the baffles has a fan-shaped ring shape with a central angle of 45 degrees;
the distance between the side of the baffle close to the axis of the tubular shell and the outer wall of the pipeline is greater than or equal to 1 mm.
7. The pipe heating apparatus according to any one of claims 1 to 5, wherein the angle between the baffle plate and the inner wall of the tubular housing is 63 degrees.
8. The pipe heating apparatus of any one of claims 1-5 wherein the seal assembly comprises a packing box.
9. A pipe heating apparatus as claimed in any of claims 1 to 5, wherein the walls of the tubular housing have insulation therein.
10. The line heating apparatus of any one of claims 1-5, wherein the tubular housing further comprises a water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017426.8A CN114738586B (en) | 2021-01-07 | 2021-01-07 | Pipeline heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017426.8A CN114738586B (en) | 2021-01-07 | 2021-01-07 | Pipeline heating device |
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| CN114738586A true CN114738586A (en) | 2022-07-12 |
| CN114738586B CN114738586B (en) | 2024-07-26 |
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| CN202110017426.8A Active CN114738586B (en) | 2021-01-07 | 2021-01-07 | Pipeline heating device |
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| Publication number | Publication date |
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| CN114738586B (en) | 2024-07-26 |
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