CN113653884B - Hot water engineering pipeline anticorrosion insulation construction - Google Patents
Hot water engineering pipeline anticorrosion insulation construction Download PDFInfo
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- CN113653884B CN113653884B CN202111219284.XA CN202111219284A CN113653884B CN 113653884 B CN113653884 B CN 113653884B CN 202111219284 A CN202111219284 A CN 202111219284A CN 113653884 B CN113653884 B CN 113653884B
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- thermal insulation
- heat
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- thermal
- hot water
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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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- 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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/10—Sealing by using sealing rings or sleeves only
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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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
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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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
- F16L58/187—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for flanged joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Abstract
The invention discloses a hot water engineering pipeline anticorrosion and thermal insulation structure which comprises a thermal insulation shell and two sections of pipeline bodies, wherein thermal insulation sleeves are arranged on the outer sides of the two sections of pipeline bodies, sealing flanges are arranged at the joints of the two thermal insulation sleeves, two mounting grooves are symmetrically formed in the side wall of the thermal insulation shell, the two thermal insulation sleeves respectively penetrate through the corresponding mounting grooves and extend out of the thermal insulation shell, and a guide plate is fixedly mounted on the inner top wall of the thermal insulation shell. The anti-corrosion heat-preservation structure can reduce the humidity in the heat-insulation shell, and avoid the problem that the corrosion of each part is different in degree due to the electrochemical reaction between the metal structure and the nonmetal structure in the heat-insulation shell; when high-temperature steam appears revealing, signal transmitter and warning light send the warning to the staff simultaneously, make things convenient for the staff to fix a position steam leakage's position fast to signal transmitter and warning light are in two parallelly connected return circuits, and the fault-tolerant rate is high.
Description
Technical Field
The invention relates to the technical field of pipeline corrosion prevention, in particular to a hot water engineering pipeline corrosion prevention and heat insulation structure.
Background
In the prior art, the tightness of the pipeline system is judged by detecting the fluid pressure, a detection device needs to be arranged at the pipeline joint, the requirement on the installation tightness is high, the pipeline system is inconvenient to install or disassemble quickly, more detection point positions are difficult to be arranged in the pipeline system, and a worker needs to check one by one to judge the specific position of steam leakage, therefore, we propose a hot water engineering pipeline anticorrosion heat preservation structure.
Disclosure of Invention
The invention aims to solve the problems that a detection device for detecting whether steam leaks has high installation requirements, more detection point positions are difficult to set and workers need to check one by one to judge the specific position of steam leakage in the prior art, and provides an anticorrosion and thermal insulation structure for a hot water engineering pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hot water engineering pipeline anticorrosion heat preservation structure comprises a heat insulation shell and two sections of pipeline bodies, wherein two sections of outer sides of the pipeline bodies are respectively provided with a heat insulation sleeve, a sealing flange is arranged at the joint of the two heat insulation sleeves, two mounting grooves are symmetrically formed in the side wall of the heat insulation shell, the two heat insulation sleeves respectively penetrate through the corresponding mounting grooves and extend out of the heat insulation shell, a guide plate is fixedly mounted on the inner top wall of the heat insulation shell, two wedge-shaped plates are symmetrically arranged on the inner side wall of the heat insulation shell, the two wedge-shaped plates are symmetrically distributed below the guide plate in an inclined mode and form a flow channel with the guide plate, two annular grooves are symmetrically formed in the side wall of the heat insulation shell, the two annular grooves are communicated with the corresponding mounting grooves, high-temperature-resistant sealing rings are arranged at the joints of the two annular grooves and the corresponding mounting grooves, and elastic sealing rings are arranged in the two annular grooves, lie in same all be filled even pressure fluid, two between high temperature resistant sealing washer in the annular and the elastic sealing ring the annular all communicates and has communicating pipe, two the one end of keeping away from corresponding annular communicating pipe all runs through the lateral wall of thermal-insulated casing and extends to the top that corresponds the wedge.
Further, the longitudinal section of deflector is for falling trapezoidal, the symmetry is provided with two layers that absorb water on the lateral wall of deflector, the collecting tank has been seted up in the deflector, many capillaries have been placed in the collecting tank, and every the upper end of capillary all runs through the deflector and extends to the corresponding in situ that absorbs water, the both ends symmetry of deflector is provided with many metal poles, every the metal pole is the back taper.
Further, two the bar groove has all been seted up in the wedge-shaped plate, two the notch department in bar groove all seals there is the gasket, and every gasket is the thermoplastic polyester material and makes, two the gasket all is located corresponding metal pole under, two equal symmetry is provided with two conducting strips on the interior diapire in bar groove.
Further, one of them install battery and signal transmitter in the wedge-shaped plate, it is a plurality of the conducting strip all with battery electric connection, seal installation has the warning light on the lateral wall of thermal-insulated casing, and warning light and battery electric connection.
Furthermore, the longitudinal sections of the two elastic sealing rings are arc-shaped, and the rising directions of the two elastic sealing rings point to the corresponding high-temperature-resistant sealing rings.
The anti-corrosion heat-preservation structure is simple to install, can reduce the humidity in the heat-insulation shell, and avoids the problem that the corrosion of each part is different in degree due to the electrochemical reaction between the metal structure and the nonmetal structure in the heat-insulation shell; when high-temperature steam leaks, the signal transmitter and the warning lamp simultaneously send warnings to workers, the workers can conveniently and quickly position the steam leakage position, and the signal transmitter and the warning lamp are located in two parallel loops, so that the fault tolerance rate is high; when steam obviously reveals, high temperature resistant sealing washer takes place deformation, and is inseparabler with heat preservation bushing connection, avoids high temperature steam to escape from the mounting groove, provides comparatively abundant time for the staff carries out emergency treatment.
Drawings
FIG. 1 is an internal schematic view of a hot water engineering pipeline corrosion-resistant heat-insulating structure provided by the invention;
FIG. 2 is a schematic view of an internal structure of a wedge-shaped plate and a guide plate in an anti-corrosion and thermal insulation structure for a hot water engineering pipeline according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a cross-sectional view of an installation groove in a hot water engineering pipeline corrosion prevention and thermal insulation structure provided by the invention;
fig. 5 is an enlarged view of fig. 4 at B.
In the figure: the heat-insulating and heat-insulating pipeline comprises a pipeline body 1, a heat-insulating sleeve 2, a sealing flange 3, a heat-insulating shell 4, a wedge-shaped plate 5, a water absorption layer 6, a guide plate 7, a sealing piece 8, a high-temperature-resistant sealing ring 9, a mounting groove 10, a liquid collecting groove 11, a capillary tube 12, a metal rod 13, a strip-shaped groove 14, a conducting strip 15, a flow channel 16, an elastic sealing ring 17, an annular groove 18, a communicating tube 19, a storage battery 20, a pressure equalizing liquid 21, a signal emitter 22 and a warning lamp 23.
Detailed Description
Referring to fig. 1, an anticorrosion and thermal insulation structure for a hot water engineering pipeline comprises a thermal insulation casing 4 and two pipeline bodies 1, wherein thermal insulation sleeves 2 are respectively arranged on the outer sides of the two pipeline bodies 1, a sealing flange 3 is arranged at the joint of the two thermal insulation sleeves 2, the sealing flange 3 is used for connecting the pipeline bodies 1 and the thermal insulation sleeves 2, two installation grooves 10 are symmetrically arranged on the side wall of the thermal insulation casing 4, the two thermal insulation sleeves 2 respectively penetrate through the corresponding installation grooves 10 and extend to the outside of the thermal insulation casing 4, the specification of the installation grooves 10 is matched with that of the thermal insulation sleeves 2, a guide plate 7 is fixedly arranged on the inner top wall of the thermal insulation casing 4, two wedge-shaped plates 5 are symmetrically arranged on the inner side wall of the thermal insulation casing 4, the two wedge-shaped plates 5 are symmetrically distributed below the guide plate 7 in an inclined manner and form a flow passage 16 with the guide plate 7, as shown in fig. 1, the two flow passages 16 are inclined upwards, is favorable for guiding the heat steam to move upwards.
Referring to fig. 2-3, the longitudinal section of the guide plate 7 is inverted trapezoid, two water absorbing layers 6 are symmetrically arranged on the side wall of the guide plate 7, a liquid collecting tank 11 is arranged in the guide plate 7, a plurality of capillary tubes 12 are arranged in the liquid collecting tank 11, the upper end of each capillary tube 12 penetrates through the guide plate 7 and extends into the corresponding water absorbing layer 6, clear water is filled in the liquid collecting tank 11, the clear water immerses the bottom ends of the capillary tubes 12, when more water is trapped on the water absorbing layer 6, the capillary tubes 12 can transfer the water on the water absorbing layer 6 into the liquid collecting tank 11, so as to prevent the water vapor from penetrating into the strip-shaped groove 14 due to the overhigh internal humidity of the heat insulation shell 4 when the heat insulation shell is sealed, illustratively, an opening is arranged on the guide plate 7, the water can be added into the liquid collecting tank 11 through the opening, or the water in the liquid collecting tank 11 can be discharged, because the structure of the opening is easy to imagine and simple and convenient to arrange, so that the structure is not shown in the drawings, so that the drawing is more succinct, the both ends symmetry of deflector 7 is provided with many metal poles 13, and every metal pole 13 is the back taper, and the back taper is favorable to condensing the water droplet on metal pole 13 and assembles the drippage.
All seted up strip groove 14 in two wedge-shaped plates 5, the notch department of two strip grooves 14 all seals has gasket 8, and every gasket 8 is the thermoplastic polyester material and makes, above-mentioned thermoplastic polyester material indicates polybutylene terephthalate, commonly known as PBT plastic, good insulating nature and heat resistance have, and the water absorption rate is lower, but the PBT plastic is easily hydrolysised under high temperature, two gasket 8 all are located corresponding metal pole 13 under, after gasket 8 hydrolysises, the water droplet of coacervation can directly drip to strip groove 14 on the metal pole 13 in, equal symmetry is provided with two conducting strips 15 on the interior diapire of two strip grooves 14.
Referring to fig. 4, a storage battery 20 and a signal transmitter 22 are installed in one of the wedge-shaped plates 5, the plurality of conductive sheets 15 are electrically connected to the storage battery 20, particularly, the two conductive sheets 15 located in the same strip-shaped groove 14 are electrically connected to the positive electrode and the negative electrode of the storage battery 20, respectively, when the two conductive sheets 15 are in an insulating state, a circuit is in a disconnected state, which can reduce the consumption of electric energy to the storage battery 20, a warning lamp 23 is installed on the outer side wall of the heat-insulating casing 4 in a sealing manner, and the warning lamp 23 is electrically connected to the storage battery 20, a small amount of water-soluble crystals, such as sodium chloride crystals, are also placed between the two conductive sheets 15 corresponding to the position, and when high-temperature steam enters the strip-shaped groove 14, the crystals are dissolved, so that the solution has conductivity;
the circuit that warning light 23 was located and the circuit that signal transmitter 22 was located are in parallel relation, and when the circuit switched on, signal transmitter 22 can send the signal to external computer, reminds the staff, and warning light 23 twinkles simultaneously, helps the staff to confirm the position, and warning light 23 and signal transmitter 22 back of connecting in parallel, even one of them part breaks down, the staff also can discover the problem of pipeline leakage through the warning of another part.
Referring to fig. 5, two annular 18 have been seted up to thermal-insulated casing 4's lateral wall internal symmetry, and two annular 18 all are linked together with the mounting groove 10 that corresponds, two annular 18 all are equipped with high temperature resistant sealing washer 9 with corresponding mounting groove 10 junction, high temperature resistant sealing washer 9 offsets with insulation support 2, guarantee thermal-insulated casing 4's sealed, all be equipped with elastic sealing washer 17 in two annular 18, it has even pressure liquid 21 all to be filled between high temperature resistant sealing washer 9 that is located same annular 18 and the elastic sealing washer 17, two annular 18 all communicate communicating pipe 19, the one end that corresponding annular 18 was kept away from to two communicating pipes 19 all runs through thermal-insulated casing 4's lateral wall and extends to the top that corresponds wedge 5.
The longitudinal section of two elastic sealing ring 17 is the arc, the directional high temperature resistant sealing ring 9 that corresponds of uplift direction of two elastic sealing ring 17, back in high-temperature gas gets into annular 18 through communicating pipe 19, elastic sealing ring 17 can be extruded to deformation, can know the pressure quadrature analysis that elastic sealing ring 17 receives, elastic sealing ring 17's arc structure can receive the power towards the left and right sides, thereby make elastic sealing ring 17's radian have the trend that reduces, and then make the pressure increase between elastic sealing ring 17 and the 18 cell walls of annular, avoid even pressure liquid 21 to reveal or high temperature steam gets into even pressure liquid 21.
Under the condition of good sealing state, the pipeline body 1 cannot leak when conveying high-pressure high-temperature steam, the heat-insulating sleeve 2 and the sealing flange 3 can play a good heat-insulating effect on the pipeline body 1, reduce the heat exchange between the pipeline body 1 and the outside, also can prevent each part from contacting the high-temperature steam, reduce the corrosion of each part and further achieve the purposes of corrosion prevention and heat insulation;
however, after the pipeline system is used for a long time, the tightness between the two sections of pipeline bodies 1 can be reduced under the influence of factors such as vibration, temperature difference and mutual traction between pipelines, when the fluid pressure is small, only a small part of high-temperature steam escapes and the normal use of the pipeline system is hardly influenced, the high-temperature steam enters the flow channel 16 under the guidance of the wedge-shaped plate 5 and the guide plate 7 and is then absorbed by the water absorption layer 6, the capillary tube 12 is in contact with the water absorption layer 6, and under the action of capillary effect, the water in the water absorption layer 6 is transferred into the liquid collecting tank 11, so that the humidity in the heat insulation shell 4 is reduced, and the problem of corrosion of various parts due to the fact that the electrochemical reaction occurs between a metal structure and a non-metal structure in the heat insulation shell 4 to cause different degrees is solved;
if the fluid pressure is high, the leakage amount of high-temperature steam is remarkably increased, at the moment, more high-temperature steam moves above the wedge-shaped plate 5 through the runner 16 and contacts with the metal rod 13, part of steam can be condensed on the metal rod 13 and form water drops, the other part of high-temperature steam can directly contact with the sealing sheet 8, the sealing sheet 8 is made of PBT plastic material and is very easy to hydrolyze at high temperature, so that when the leakage amount of the high-temperature steam is high, the sealing sheet 8 cannot seal the strip-shaped groove 14, and the water drops outside the metal rod 13 can directly fall into the strip-shaped groove 14;
when the water in the strip-shaped groove 14 contacts with the two conducting strips 15, the two conducting strips 15 can be regarded as being electrically connected (a crystal with good conductivity after being dissolved, such as sodium chloride, is placed between the two conducting strips 15), at this time, the circuit where the signal emitter 22 and the warning lamp 23 are located is conducted, the signal emitter 22 can send a signal to an external computer to remind a worker that steam leaks, and meanwhile, the warning lamp 23 flickers to help the worker to determine the specific position of the steam leakage;
meanwhile, part steam can get into in the annular 18 through communicating pipe 19, thereby extrude elasticity sealing washer 17, because elasticity sealing washer 17 is the arc structure, and the direction of uplift is towards high temperature resistant sealing washer 9, so under the promotion of high temperature steam, elasticity sealing washer 17 is more inseparable with the inside wall connection of annular 18, avoid high temperature steam to reveal or even pressure liquid 21 gets into in communicating pipe 19, when elasticity sealing washer 17 extrudes even pressure liquid 21, even pressure liquid 21 can evenly transmit effort to high temperature resistant sealing washer 9 department, make high temperature resistant sealing washer 9 take place the deformation, thereby it is inseparabler to be connected with insulation support 2, avoid high temperature steam to escape from mounting groove 10, provide comparatively abundant time for the staff carries out emergency treatment.
Claims (5)
1. The utility model provides a hot water engineering pipeline anticorrosion insulation construction, includes thermal-insulated casing (4) and two sections pipeline bodies (1), its characterized in that, two sections the outside of pipeline body (1) all is equipped with insulation support pipe (2), and two insulation support pipe (2) link to each other and install sealing flange (3), two mounting grooves (10) have been seted up to the symmetry on the lateral wall of thermal-insulated casing (4), and two insulation support pipe (2) run through corresponding mounting groove (10) respectively and extend to outside thermal-insulated casing (4), fixed mounting has deflector (7) on the interior roof of thermal-insulated casing (4), the symmetry is provided with two wedges (5) on the inside wall of thermal-insulated casing (4), and two wedges (5) symmetric distribution form runner (16) in the oblique below of deflector (7) and between deflector (7), two annular (18) have been seted up to the symmetry in the lateral wall of thermal-insulated casing (4), and two annular (18) all are linked together, two with mounting groove (10) that correspond annular (18) all are equipped with high temperature resistant sealing washer (9), two with corresponding mounting groove (10) junction all be equipped with elastic sealing washer (17) in annular (18), are located same even pressure liquid (21) have all been filled between high temperature resistant sealing washer (9) in annular (18) and elastic sealing washer (17), two annular (18) all communicate and have communicating pipe (19), two the one end of keeping away from corresponding annular (18) communicating pipe (19) all runs through the lateral wall of thermal-insulated casing (4) and extends to the top that corresponds wedge (5).
2. The hot water engineering pipeline corrosion-prevention and heat-insulation structure according to claim 1, wherein the longitudinal section of the guide plate (7) is inverted trapezoid, two water absorption layers (6) are symmetrically arranged on the side wall of the guide plate (7), a liquid collection tank (11) is arranged in the guide plate (7), a plurality of capillary tubes (12) are placed in the liquid collection tank (11), the upper end of each capillary tube (12) penetrates through the guide plate (7) and extends into the corresponding water absorption layer (6), a plurality of metal rods (13) are symmetrically arranged at two ends of the guide plate (7), and each metal rod (13) is inverted cone-shaped.
3. The hot water engineering pipeline corrosion-resistant heat-insulation structure according to claim 2, wherein a strip-shaped groove (14) is formed in each of the two wedge-shaped plates (5), sealing pieces (8) are sealed at the notches of the two strip-shaped grooves (14), each sealing piece (8) is made of thermoplastic polyester material, the two sealing pieces (8) are located under the corresponding metal rod (13), and two conducting pieces (15) are symmetrically arranged on the inner bottom wall of each of the two strip-shaped grooves (14).
4. The hot water engineering pipeline corrosion-prevention and heat-preservation structure according to claim 3, wherein a storage battery (20) and a signal transmitter (22) are installed in one of the wedge-shaped plates (5), the plurality of conducting strips (15) are electrically connected with the storage battery (20), a warning lamp (23) is installed on the outer side wall of the heat-insulation shell (4) in a sealing mode, and the warning lamp (23) is electrically connected with the storage battery (20).
5. The hot water engineering pipeline corrosion-prevention and heat-insulation structure as claimed in claim 1, wherein the longitudinal sections of the two elastic sealing rings (17) are both arc-shaped, and the rising directions of the two elastic sealing rings (17) point to the corresponding high-temperature-resistant sealing rings (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219284.XA CN113653884B (en) | 2021-10-20 | 2021-10-20 | Hot water engineering pipeline anticorrosion insulation construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219284.XA CN113653884B (en) | 2021-10-20 | 2021-10-20 | Hot water engineering pipeline anticorrosion insulation construction |
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| CN113653884A CN113653884A (en) | 2021-11-16 |
| CN113653884B true CN113653884B (en) | 2021-12-21 |
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| CN117685510B (en) * | 2024-02-04 | 2024-04-12 | 烟台明炬新能源有限公司 | Industrial gas leakage real-time on-line monitoring equipment |
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