CN111678052A - Pipeline sealing detection mechanism for air separation device - Google Patents
Pipeline sealing detection mechanism for air separation device Download PDFInfo
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- CN111678052A CN111678052A CN202010555462.5A CN202010555462A CN111678052A CN 111678052 A CN111678052 A CN 111678052A CN 202010555462 A CN202010555462 A CN 202010555462A CN 111678052 A CN111678052 A CN 111678052A
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- shell
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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
- 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
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
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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
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a pipeline sealing detection mechanism for an air separation device, which comprises a first shell and a second shell, wherein the first shell comprises a group of bent plates, two groups of vertical plates and two groups of arc-shaped clamping plates; the two groups of vertical plates are symmetrically arranged on two sides of the bent plate, semicircular notches are formed in the edges of the vertical plates, the diameter of each semicircular notch is equal to the outer diameter of the pipeline, and the semicircular notches can be completely attached to the outer surface of the pipeline; and one sides of the two groups of vertical plates, which are far away from the bent plate, are fixedly connected with arc-shaped clamping and connecting plates. The air separation device system can detect the sealing effect of the pipeline by detecting the air pressure change in the sealing cavity, if the pipeline positioned in the sealing cavity leaks, the sealing cavity can carry out secondary sealing on the leaked air, the leaked air can be prevented from being diffused to the outside, the whole air separation device system can continue to operate in a short time by sealing the leaking part through the sealing cavity, the maintenance is carried out until the next maintenance, and the time cost is saved.
Description
Technical Field
The invention belongs to the technical field of air separation devices, and particularly relates to a pipeline sealing detection mechanism for an air separation device.
Background
The coal water slurry gasification technology comprises the following steps: adding a certain amount of water into raw coal, and preparing coal water slurry with coal content of about 65% by using a rod mill; and (3) pressurizing and conveying the coal water slurry to the gasification furnace through a high-pressure coal slurry pump, and carrying out oxidation reaction on the coal water slurry and high-pressure oxygen to obtain the synthetic coal gas. Wherein, the high-pressure oxygen required by the coal gas is produced by an air separation device. The air separation plant uses air as a raw material, and the energy consumption of the existing air separation plant accounts for 80% of the production cost; the air compressor is used as the starting point of the air separation unit and needs to be communicated with the subsequent equipment of the air separation unit through a pipeline. If the pipeline can't guarantee sealing performance, can make the efficiency step-down of the blast air of air compressor machine, increase the energy consumption.
At present, although a sealing detection device is arranged between partial important pipelines, the temporary sealing of the joint of air leakage can not be carried out, so that the whole system can continuously operate; some pipe sealing devices are inconvenient to install and disassemble, have high detection cost, and cause obstacles to maintenance.
Disclosure of Invention
Aiming at the problems, the invention provides a pipeline sealing detection mechanism for an air separation device, which comprises a first shell and a second shell, wherein the first shell comprises a group of bent plates, two groups of vertical plates and two groups of arc-shaped clamping and connecting plates;
the two groups of vertical plates are symmetrically arranged on two sides of the bent plate, semicircular notches are formed in the edges of the vertical plates, the diameter of each semicircular notch is equal to the outer diameter of the pipeline, and the semicircular notches can be completely attached to the outer surface of the pipeline;
the side, far away from the bent plate, of each of the two groups of vertical plates is fixedly connected with an arc clamping plate, the central axis of each arc clamping plate is superposed with the central axis of the corresponding semicircular notch, and the inner wall of each arc clamping plate can be completely attached to the outer surface of the pipeline;
the second shell and the first shell have the same structure and are symmetrical to each other;
the bent plate on the first shell and the bent plate on the second shell are fixedly connected through bolts; a sealed cavity can be formed among the bent plate on the first shell, the vertical plate on the first shell, the bent plate on the second shell, the vertical plate on the second shell and the outer surface of the pipeline;
an air inlet valve is arranged on the first shell and is communicated with the sealed cavity;
be provided with pressure switch and siren on the first casing, pressure switch's detecting head extends inside sealed cavity, pressure switch and siren electric connection.
Preferably, a first elastic rubber layer is attached between the arc-shaped clamping plate and the pipeline;
connecting blocks are welded on two sides of the arc-shaped clamping plate;
the connecting block on the first shell is fixedly connected with the connecting block on the second shell through a bolt; and a second elastic rubber layer is attached between the connecting block on the first shell and the connecting block on the second shell.
Preferably, the outer walls of the vertical plates are fixedly welded with arc-shaped fixing plates, the arc-shaped fixing plates are bent into a semicircle, and the central axes of the arc-shaped fixing plates are overlapped with the central axes of the arc-shaped clamping and connecting plates.
Preferably, the arc-shaped fixing plate is connected with a threaded knob in a penetrating and screwed mode, and one end of the threaded knob is tightly pressed and attached to the outer surface of the arc-shaped clamping plate.
Preferably, the outer fixed surface of the arc-shaped fixing plate is connected with an elastic rubber plate, one side of the elastic rubber plate is provided with an elastic rubber convex block, and one side of the elastic rubber convex block is attached to the lower side of the knob end of the threaded knob.
Preferably, the end part of the threaded knob is provided with a pressing plate, and one side of the pressing plate is tightly pressed and attached to the outer surface of the arc-shaped clamping plate.
Preferably, connecting plates are symmetrically arranged on two sides of the bent plate, the connecting plate on the first shell and the connecting plate on the second shell are symmetrical to each other, and the connecting plate on the first shell and the connecting plate on the second shell are fixedly connected through bolts;
and a third elastic rubber layer is arranged between the connecting plate on the first shell and the connecting plate on the second shell.
Preferably, the third elastic rubber layers are provided with four groups, wherein two groups of the third elastic rubber layers are respectively and fixedly connected to one side of two groups of connecting plates on the first shell, the other two groups of the third elastic rubber layers are respectively and fixedly connected to one side of two groups of connecting plates on the second shell, a groove is formed in the surface of the third elastic rubber layer on the first shell, a first rubber convex strip is arranged on the surface of the third elastic rubber layer on the second shell, and one side of the first rubber convex strip is clamped in the groove.
Preferably, the mechanism further comprises a housing seal detection mechanism; the shell sealing detection mechanism comprises a first detection mechanism;
the shell sealing detection mechanism comprises a water tank;
the water tank is provided with a notch, and the lower side of the notch can be attached to the lower surface of the pipeline;
the outer wall of the water tank is fixedly connected with two groups of fixing plates, and the two groups of fixing plates are respectively arranged on two sides of the notch.
Preferably, a baffle is arranged between the two groups of fixing plates in a sliding manner, and the lower side of the baffle can be attached to the upper surface of the pipeline; one side of the baffle is fixedly connected with a first hook;
the notch is provided with first extension spring on two sides, the lower end of the first extension spring is fixedly connected to the outer surface of the side wall of the water tank, and the upper end of the first extension spring is movably hung on the first hook.
The air separation device system comprises a first shell, a second shell and a pipeline, wherein the first shell, the second shell and the pipeline form a sealed cavity, the sealing effect of the pipeline can be detected by detecting the air pressure change in the sealed cavity, if the pipeline positioned in the sealed cavity leaks, the sealed cavity can carry out secondary sealing on the leaked air, and the leaked air can be prevented from being diffused to the outside; sealed cavity constitutes through first casing and second casing, and during the use, first casing and second casing can cup joint from relative both sides and fix on the pipeline, be convenient for installation and dismantlement.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a front view of a pipe seal detection mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the internal structure of a pipe seal detection mechanism according to an embodiment of the present invention;
FIG. 3 illustrates a schematic bottom view of the first housing portion in accordance with an embodiment of the present invention;
FIG. 4 illustrates a side view structural schematic of a riser portion according to an embodiment of the present invention;
FIG. 5 illustrates a side view structural schematic of an arcuate fixation plate portion in accordance with an embodiment of the present invention;
FIG. 6 is a partial enlarged view of portion A of FIG. 5 according to the present invention;
FIG. 7 is a schematic diagram showing a side view of a second rubber ridge portion according to an embodiment of the present invention;
FIG. 8 is a front view schematically showing the structure of a connection plate and a third elastic rubber layer portion according to an embodiment of the present invention;
FIG. 9 is a schematic side view of a portion of a groove and a first rubber rib according to an embodiment of the invention;
FIG. 10 is a schematic front view showing the internal structure of a first detecting mechanism according to an embodiment of the present invention;
FIG. 11 is a schematic side view of a notch portion and a retaining plate portion of a first sensing mechanism according to an embodiment of the present invention;
FIG. 12 is a schematic side view of a first sensing mechanism according to an embodiment of the invention;
FIG. 13 illustrates an internal schematic view of a first housing detection assembly according to an embodiment of the present invention;
FIG. 14 is an enlarged partial schematic view of portion B of FIG. 13 in accordance with the present invention;
FIG. 15 illustrates a side view schematic diagram of a second extension spring portion in accordance with an embodiment of the present invention;
FIG. 16 is a schematic diagram illustrating an internal structure of a second housing detection assembly according to an embodiment of the present invention;
fig. 17 is a partial enlarged view of a portion C of fig. 16 according to the present invention.
In the figure: 1. a pipeline; 3. a first housing; 4. a second housing; 5. a pressure switch; 6. sealing the cavity; 8. an intake valve; 9. bending a plate; 10. a vertical plate; 11. a semicircular notch; 12. an arc-shaped clamping and connecting plate; 13. a first elastic rubber layer; 14. connecting blocks; 15. a second elastic rubber layer; 16. an arc-shaped fixing plate; 17. a threaded knob; 19. pressing a plate; 20. an elastic rubber plate; 21. an elastic rubber bump; 22. a connecting plate; 24. a third elastic rubber layer; 26. a groove; 27. a first rubber rib; 28. a second rubber rib; 29. a first detection mechanism; 30. an alarm; 2901. a water tank; 2902. a notch; 2903. a fixing plate; 2904. a baffle plate; 2909. a first extension spring; 2910. a first hook; 31. a first housing detection assembly; 32. a second housing detection assembly; 3101. a third housing; 3102. a fourth housing; 3103. a first water chamber; 3104. a first water inlet valve; 3105. a first water outlet valve; 3109. a first clamping block; 3107. a first card slot; 3106. a first chamfer; 3108. a first rubber ring; 3110. a second extension spring; 3111. a second hook; 3201. a fifth housing; 3202. a second water chamber; 3203. a second water inlet valve; 3204. a second water outlet valve; 3205. a second card slot; 3206. a second chamfer; 3207. a second rubber ring; 3208. and a second clamping block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The embodiment of the invention provides a pipeline sealing detection mechanism for an air separation device, which comprises the following steps:
as shown in fig. 1, the pipe sealing detection mechanism includes a first housing 3 and a second housing 4; the first shell 3 and the second shell 4 are fixedly connected through bolts, one side of each of the first shell 3 and the second shell 4 can be sleeved on the surface of the pipeline 1, and a sealed cavity (not marked in the figure) is formed between the inner surface of the first shell 3, the inner surface of the second shell 4 and the outer surface of the pipeline 1. The sealed cavity is used for sealing the detection gas.
Further, as shown in fig. 2, an air inlet valve 8 is disposed on the first housing 3, and the air inlet valve 8 is communicated with the sealed cavity 6; the air inlet valve 8 is used for air to enter and exit the sealed cavity 6, and here, the air inlet valve 8 is only installed on the first housing 3 for illustration, but the air inlet valve 8 is not limited to be installed on the first housing 3, and may be installed on the second housing 4.
Further, be provided with pressure switch 5 and siren 30 on the first casing 3, pressure switch 5's detecting head extends inside sealed cavity 6, is used for survey the inside real-time atmospheric pressure of sealed cavity 6, pressure switch 5 and siren 30 electric connection, work as when the inside real-time atmospheric pressure of sealed cavity 6 exceeds the default, pressure switch 5 steerable siren 30 reports to the police. Here, the pressure switch 5 and the alarm 30 are only illustrated as being mounted on the first housing 3, but the pressure switch 5 and the alarm 30 are not limited to being mounted on the first housing 3, and may be mounted on the second housing 4, and are not limited thereto.
Illustratively, the sealed cavity 6 may be filled with a high-pressure gas; the air pressure of the high-pressure gas is greater than that of the gas in the pipeline 1, when the pressure switch 5 detects that the real-time air pressure of the high-pressure gas in the sealed cavity 6 is lower than a preset value, it indicates that the high-pressure gas enters the pipeline 1 along the air leakage position of the pipeline 1, the sealing of the pipeline 1 is in a problem, and then the pressure switch 5 controls the alarm 30 to give an alarm. The high-pressure gas and the gas in the pipeline 1 can form a gas pressure difference, and when the pressure of the gas pressure difference to the pipeline 1 is smaller than the pressure of the gas in the pipeline 1 to the pipeline 1, the impact of the gas in the pipeline 1 to the pipeline 1 can be reduced, and the leakage degree of the pipeline 1 is reduced.
The gas pressure in the sealed cavity 6 can also be lower than that of the gas in the pipeline 1, including standard atmospheric pressure, that is, no gas is filled into the sealed cavity 6, and only the air in the sealed cavity 6 is used as detection gas, which is convenient for operation; when the pressure switch 5 detects that the real-time air pressure inside the sealed cavity 6 is higher than the preset value, it indicates that the air in the pipeline 1 enters the sealed cavity 6 along the air leakage part of the pipeline 1, and the sealing of the pipeline 1 is in problem, and then the pressure switch 5 controls the alarm 30 to give an alarm.
Further, as shown in fig. 3, the first housing 3 includes a set of bent plate 9 and two sets of vertical plates 10, the two sets of vertical plates 10 are symmetrical to each other on one side of the bent plate 9, a semicircular notch 11 is formed on one side of each of the two sets of vertical plates 10, and the diameter of the semicircular notch 11 is equal to the outer diameter of the pipeline 1.
Further, as shown in fig. 4, the first housing 3 further includes two sets of arc-shaped snap-in plates 12, the two sets of arc-shaped snap-in plates 12 are respectively and fixedly connected to the outer walls of the two sets of vertical plates 10, the central axes of the arc-shaped snap-in plates 12 are overlapped with the central axes of the semicircular notches 11, and the inner walls of the arc-shaped snap-in plates 12 can be completely attached to the outer surface of the pipeline 1; the arc-shaped clamping and connecting plate 12 can increase the contact area between the two groups of shells and the pipeline 1, and enhance the sealing effect between the two groups of shells and the pipeline 1;
further, the second shell 4 and the first shell 3 have the same structure and are symmetrical to each other;
a first elastic rubber layer 13 is arranged between the arc-shaped clamping plate 12 and the pipeline 1; the sealing effect between the two groups of shells and the pipeline 1 can be further improved;
connecting blocks 14 are welded on two sides of the arc-shaped clamping and connecting plate 12;
the connecting block 14 on the first shell 3 is fixedly connected with the connecting block 14 on the second shell 4 through bolts; a second elastic rubber layer 15 is arranged between the connecting block 14 on the first shell 3 and the connecting block 14 on the second shell 4;
the joint block 14 and the second elastic rubber layer 15 can increase the sealing effect at the contact position of the two sets of shells and the pipeline 1.
Preferably, as shown in fig. 5, in order to enhance the sealing property between the first housing 3 and the second housing 4, so that the application range of the mechanism can be expanded to the pipeline detection of other gases, arc-shaped fixing plates 16 are fixedly welded on both sides of the vertical plate 10 of the first housing 3 and the vertical plate 10 of the second housing 4, the arc-shaped fixing plates 16 are bent into a semicircular shape, and the central axes of the arc-shaped fixing plates 16 and the central axes of the arc-shaped snap plates 12 are overlapped. It is possible to ensure that the distances between the arc fixing plate 16 and the arc catching plate 12 are equal.
Further, it has screw knob 17 to run through the spiro union on the arc fixed plate 16, screw knob 17 one end compresses tightly and laminates in arc joint board 12 surface, screw knob 17 can compress tightly arc joint board 12, make arc joint board 12 have to the pressure of pipeline 1 direction to make the casing with the difficult gas leakage of junction of pipeline 1. Specifically, the screw thread knob 17 needs to be periodically overhauled, and needs to be timely screwed down when finding looseness so as to ensure the extrusion effect on the arc-shaped clamping plate 12, thereby ensuring that the air is not easily leaked between the shell and the pipeline 1.
For example, in a specific implementation, the arc-shaped fixing plate 16 may be replaced by fixing blocks connected to the surface of the first casing 3 or the second casing 4, the fixing blocks are distributed in an annular array relative to the central axis of the first casing 3 and the second casing 4, and each fixing block is rotatably connected to one or more sets of threaded knobs through threaded holes, which is not limited herein.
Further, 16 outer fixed surface of arc fixed plate is connected with elastic rubber board 20, elastic rubber board 20 is the arc, elastic rubber board 20 one side is provided with elasticity rubber bump 21, elasticity rubber bump 21 with elasticity rubber board 20 formula structure as an organic whole, elasticity rubber bump 21 one side with the laminating of the knob end downside of screw knob 17. The screw thread knob 17 comprises the threaded rod of downside and the knob end that is located the threaded rod upper end, the 21 tip of elasticity rubber lug can withstand the knob end of screw thread knob 17 plays fixed action to screw thread knob 17, makes screw thread knob 17 be difficult for rotating by oneself to guarantee screw thread knob 17 to the extrusion effect of arc joint board 12, be difficult for leaking gas between casing and the pipeline.
Illustratively, the elastic rubber bump 21 may be of a cylindrical type or a cubic type.
Further, as shown in fig. 6, a pressing plate 19 is disposed at an end portion of the threaded knob 17, a surface area of a lower surface of the pressing plate 19 is larger than a surface area of a lower end of the threaded knob 17, and one side of the pressing plate 19 is tightly attached to the outer surface of the arc-shaped clamping plate 12. The pressing plate 19 can increase the contact area with the outer surface of the arc-shaped clamping plate 12, and the extrusion effect is increased.
Preferably, as shown in fig. 7, a plurality of sets of second rubber ribs 28 are provided on the first elastic rubber layer 13 on the side close to the pipe 1, and one side of the second rubber ribs 28 is attached to the surface of the pipe 1.
Specifically, when the second rubber rib 28 is pressed against the surface of the pipe 1, the first elastic rubber layer 13 is also pressed against the surface of the pipe 1, and the second rubber rib 28 is in a state of being deformed by being pressed. When the outer surface of the pipeline 1 is uneven, if small gaps exist, the second rubber convex strips 28 which are extruded and deformed can supplement the uneven part of the outer surface of the pipeline 1, so that the sealing performance is enhanced.
Moreover, when the first elastic rubber layer 13 is squeezed to form wrinkles during installation, the air leakage problem is easy to occur, and the second rubber convex strips 28 can still be in sealing fit with the pipeline 1, so that the sealing performance of the connection part is enhanced.
Preferably, as shown in fig. 8, connection plates 22 are symmetrically arranged on both sides of the bent plate 9, the connection plate 22 on the first housing 3 and the connection plate 22 on the second housing 4 are symmetrical to each other, and the connection plate 22 on the first housing 3 and the connection plate 22 on the second housing 4 are fixedly connected by bolts;
a third elastic rubber layer 24 is arranged between the connecting plate 22 on the first shell 3 and the connecting plate 22 on the second shell 4, the connecting plate 22 can increase the contact area of the first shell 3 and the second shell 4, the stability and the convenience of installation are enhanced, and the sealing effect between the first shell 3 and the second shell 4 can be enhanced by the connecting plate 22.
Further, as shown in fig. 9, four sets of the third elastic rubber layers 24 are provided, wherein two sets of the third elastic rubber layers 24 are fixedly connected to one side of the connecting plate 22 on the first housing 3, the other two sets of the third elastic rubber layers 24 are fixedly connected to one side of the connecting plate 22 on the second housing 4, a groove 26 is formed on the surface of the third elastic rubber layer 24 on the first housing 3, a first rubber protrusion 27 is formed on the surface of the third elastic rubber layer 24 on the second housing 4, and one side of the first rubber protrusion 27 is clamped inside the groove 26. For example, the cross-sectional shapes of the grooves 26 and the first rubber ribs 27 are illustrated as rectangles, and are not limited herein.
The first rubber convex strips 27 can be connected in the grooves 26, so that the sealing effect can be increased, and air leakage caused by the unevenness of the contact surface between the third elastic rubber layers 24 can be prevented; and set up first rubber convex strip 27 with it matched with recess 26, be convenient for first casing 3 with location between the second casing 4, when the installation, will first rubber convex strip 27 joint in inside the recess 26, can be to first casing 3 with the preliminary location of second casing 4.
The contact positions of the two groups of third elastic rubber layers 24 are coated with sealant, the joint of the first shell 3 and the pipeline 1 is coated with sealant, and the joint of the second shell 4 and the pipeline 1 is coated with sealant, so that the leakage of high-pressure gas in the sealed cavity 6 to the outside of the first shell 3 and the second shell 4 can be further enhanced.
When the device is used, the first shell 3 is placed on the upper side of the pipeline 1, the second shell 4 is placed on the lower side of the pipeline 1, the first elastic rubber layer 13 is attached to the outer surface of the pipeline 1, the first rubber convex strip 27 is clamped in the groove 26 when the device is installed, namely, the first shell 3 and the second shell 4 can be preliminarily positioned, then two groups of the connecting plates 22 are fixedly connected by bolts, so that two groups of the third elastic rubber layers 24 are tightly pressed and attached, then fixedly connecting the upper and lower groups of connecting blocks 14 by using bolts to tightly press and attach the second elastic rubber layers 15, coating sealant on the joint of the first shell 3 and the second shell 4, coating a sealant on the joint of the first shell 3 and the pipeline 1, and coating a sealant on the joint of the second shell 4 and the pipeline 1; the parameters of the pressure switch 5 are set, when the pressure detected by the pressure switch 5 exceeds a preset value, the alarm 30 is informed to give an alarm, and a worker can record the alarm, so that the maintenance is convenient during the regular maintenance.
Preferably, as shown in fig. 10, in order to ensure the sealing performance of the sealed cavity 6 and increase the installation accuracy, the present invention further includes a housing seal detection mechanism, which includes a first detection mechanism 29. The first shell 3 and the second shell 4 are arranged inside the first detection mechanism 29, and the side wall of the first detection mechanism 29 is sleeved on the outer surface of the pipeline 1.
The first detection mechanism 29 can detect the sealing performance of the sealed cavity 6, and the normal operation of the pipeline sealing detection mechanism is guaranteed, so that the sealing detection accuracy is improved, and the influence on the pipeline sealing detection accuracy due to the damage of the pipeline sealing detection mechanism is prevented.
Specifically, as shown in fig. 11, the first detection mechanism 29 includes a water tank 2901;
a notch 2902 is arranged on the water tank 2901, the upper side of the notch 2902 is rectangular, the lower side of the notch 2902 is semicircular, and the lower side of the notch 2902 can be attached to the lower surface of the pipeline 1;
two sets of fixing plates 2903 are fixedly connected to the outer wall of the water tank 2901, the fixing plates 2903 are L-shaped fixing plates, and the fixing plates 2903 at two sides are respectively arranged at two sides of the notch 2902;
further, as shown in fig. 12, a baffle 2904 is slidably disposed between the two sets of fixing plates 2903, the lower side of the baffle 2904 is semicircular, and the lower side of the baffle 2904 can be attached to the upper surface of the pipe 1; a first hook 2910 is fixedly connected to one side of the baffle 2904;
a first extension spring 2909 is disposed at both sides of the notch 2902, the lower end of the first extension spring 2909 is fixedly connected to the outer surface of the sidewall of the water tank 2901, and the upper end of the first extension spring 2909 is movably hung on a first hook 2910.
The first extension spring 2909 may pull the stop 2904 downward, so that the underside of the stop 2904 is closely attached to the upper surface of the pipe 1.
Preferably, in order to seal the connection between the baffle 2904 and the fixing plate 2903, a fourth elastic rubber layer is fixedly bonded to the baffle 2904, and one side of the fourth elastic rubber layer is pressed against the side wall of the water tank 2901.
Preferably, in order to prevent the water leakage from the joint between the baffle 2904 and the pipeline 1, an elastic rubber strip is disposed between the baffle 2904 and the pipeline 1, and in order to prevent the water leakage from the joint between the notch 2902 and the pipeline 1, an elastic rubber strip is disposed between the notch 2902 and the pipeline 1.
When detecting, the upper end of the first tension spring 2909 is taken down from the first hook 2910, the baffle 2904 is pulled upwards, the baffle 2904 is taken down from the fixing plate 2903, the water tank 2901 is placed right below the pipeline 1, the water tank 2901 is pushed upwards, the pipeline 1 is placed in the notch 2902, finally the lower surface of the pipeline 1 is attached to the lower side of the notch 2902, then the baffle 2904 is slidingly clamped between the fixing plates 2903, the first tension spring 2909 is hung on the first hook 2910, the lower surface of the baffle 2904 is attached to the upper surface of the pipeline 1, water is filled into the water tank 2901, the water level exceeds the upper surface of the pipeline 1, whether bubbles are generated on the water level or not can be observed, and if no bubbles are generated, the sealing performance of the first shell 3 and the second shell 4 is good; if bubbles are generated, the sealing performance of the first shell 3 and the second shell 4 is poor, the first shell needs to be installed again, and after the detection is finished, the first detection mechanism 29 can be taken down through reverse operation.
The baffle 2904 is used for realizing the installation of the first detection mechanism 29, the box 2901 is provided with a first extension spring 2909, and the first extension spring 2909 can pull the baffle 2904 downwards, so that the lower side of the baffle 2904 is tightly attached to the upper surface of the pipeline 1, and the sealing effect is enhanced.
The first detection mechanism 29 can detect the sealing performance of the sealed cavity 6, and the normal operation of the pipeline sealing detection mechanism is guaranteed, so that the accuracy of the pipeline sealing detection is improved, and the influence on the accuracy of the pipeline sealing detection due to the damage of the pipeline sealing detection mechanism is prevented.
The housing seal detection mechanism for detecting the tightness of the sealed cavity 6 may also take other forms, and the above description is only given by way of example of the first detection mechanism 29, but is not limited to this structure, and for example, the following structure may also be adopted:
the shell sealing detection mechanism also comprises a second detection mechanism; the second detection mechanism comprises a first shell detection assembly 31 and a second shell detection assembly 32;
further, as shown in fig. 13, the first housing detection assembly 31 includes a third housing 3101 and a fourth housing 3102, the third housing 3101 and the fourth housing 3102 are symmetrical to each other, one side of each of the third housing 3101 and the fourth housing 3102 can be clamped on the surface of the pipe 1, and the other side of each of the third housing 3101 and the fourth housing 3102 can be sleeved on the outer surface of the arc-shaped clamping plate 12. The inner wall of the third housing 3101, the inner wall of the fourth housing 3102, the outer wall of the pipe 1 and the surface of the arc-shaped clamping plate 12 can form a first water cavity 3103. The junction of the arcuate snap plate 12 and the pipe 1 is located inside the first water chamber 3103. When the water in the first water chamber 3103 bubbles, it is explained that the air leaks from the arc-shaped chucking plate 12. In order to make it clear that the water bubbles in the first water chamber 3103, the third and fourth housings 3101 and 3102 are made of transparent material.
Further, a first water inlet valve 3104 is arranged outside the third housing 3101, the first water inlet valve 3104 is communicated with the first water cavity 3103, and the first water inlet valve 3104 is used for injecting water into the first water cavity 3103; a first outlet valve 3105 is arranged outside the fourth housing 3102, the first outlet valve 3105 is communicated with the first water chamber 3103, and the first outlet valve 3105 is used for discharging water in the first water chamber 3103.
Further, the inner wall edges of the third shell 3101 and the fourth shell 3102 are both provided with a first chamfer 3106; the first locking block 3109 can be locked inside the first locking groove 3107 by the first chamfer 3106, so that the third housing 3101 and the fourth housing 3102 can be locked with the arc-shaped locking plate 12.
Specifically, as shown in fig. 14, two sets of first fastening blocks 3109 are fixedly connected to the outer surface of the arc-shaped fastening plate 12, first fastening grooves 3107 matched with the first fastening blocks 3109 are respectively formed on the inner walls of the third housing 3101 and the fourth housing 3102, the first fastening blocks 3109 are fastened inside the first fastening grooves 3107, and the third housing 3101 and the fourth housing 3102 are fastened to the outer surface of the arc-shaped fastening plate 12. Specifically, the bottom side of the first locking groove 3107 is provided with a sealing strip, which can seal the first locking block 3109 and the first locking groove 3107.
Further, a first rubber ring 3108 is fixedly connected inside the third housing 3101 and the fourth housing 3102, the cross section of the first rubber ring 3108 is triangular or wedge-shaped, compared with the rectangular cross section, the triangular or wedge-shaped first rubber ring 3108 can prevent the first rubber ring 3108 from being damaged by the arc-shaped clamping plate 12 when the first rubber ring 3108 is clamped with the arc-shaped clamping plate 12, thereby affecting the sealing.
Further, as shown in fig. 15, a second tension spring 3110 is provided outside the third housing 3101, a second hook 3111 is fixedly connected outside the fourth housing 3102, and one end of the second tension spring 3110 is hooked on the second hook 3111. The third housing 3101 and the fourth housing 3102 are closely fitted to each other by the tensile force of the second tension spring 3110, and water leakage at the joint between the third housing 3101 and the fourth housing 3102 is prevented. It should be noted here that even if water leaks between the third housing 3101 and the fourth housing 3102, the first housing detection assembly 31 is not affected because the first housing detection assembly 31 detects only for a short time, not for a continuous time.
Further, a rubber layer is arranged at the joint of the third shell 3101 and the fourth shell 3102, so that the sealing property between the third shell 3101 and the fourth shell 3102 can be enhanced;
further, a rubber layer is provided between the third housing 3101 and the pipe 1 to enhance the sealing property between the third housing 3101 and the pipe 1, and a rubber layer is provided between the fourth housing 3102 and the pipe 1 to enhance the sealing property between the fourth housing 3102 and the pipe 1.
Further, as shown in fig. 16 and 17, the second housing detection assembly 32 includes a fifth housing 3201, and the fifth housing 3201 may be snapped on one side of the connection plate 12. The two sets of connecting plates 22 and the inner wall of the fifth casing 3201 form a second water chamber 3202, the second water chamber 3202 can be used for storing liquid for detection, and the connecting position of the two sets of connecting plates 22 is positioned in the second water chamber 3202. When the water in the second water chamber 3202 bubbles, it is explained that the connection of the connection plate 22 leaks air. In order to clearly see the bubbling of water in the second water chamber 3202, the fifth housing 3201 is made of a transparent material.
Further, a second water inlet valve 3203 is disposed outside the fifth housing 3201, the second water inlet valve 3203 is communicated with the second water cavity 3202, and the second water inlet valve 3203 is used for injecting water into the second water cavity 3202; a second water outlet valve 3204 is disposed outside the fifth casing 3201, the second water outlet valve 3204 is communicated with the second water chamber 3202, and the second water outlet valve 3204 can discharge water in the second water chamber 3202.
A second fixture block 3208 is fixedly connected to one side of the two groups of connecting plates 22 away from each other; the inner wall of the fifth housing 3201 is provided with a second slot 3205 matched with the inner wall of the second block 3208, so that the fifth housing 3201 can be clamped on one side of the connecting plate 22. Specifically, the bottom side of the second card slot 3205 is provided with a sealing strip, which can seal the second clamping block 3208 and the second card slot 3205.
Further, a second chamfer 3206 is formed on an edge of an inner wall of the fifth housing 3201, and when the fifth housing 3201 and the connecting plate 22 are clamped, the second clamping block 3208 can be clamped into the second clamping groove 3205 along the second chamfer 3206, so that clamping is facilitated.
Further, the inner wall of the fifth casing 3201 is fixedly connected with a second rubber ring 3207, the cross section of the second rubber ring 3207 is triangular or wedge-shaped, and compared with the rectangular cross section, the triangular or wedge-shaped second rubber ring 3207 can prevent the second rubber ring 3207 from being damaged by the connecting plate 22 when the second rubber ring 3207 is clamped with the connecting plate 22, so that sealing is affected.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a pipeline seal detection mechanism for air separation plant, includes first casing (3) and second casing (4), its characterized in that: the first shell (3) comprises a group of bent plates (9), two groups of vertical plates (10) and two groups of arc-shaped clamping and connecting plates (12);
the two groups of vertical plates (10) are symmetrically arranged on two sides of the bent plate (9), semicircular notches (11) are formed in the edges of the vertical plates (10), the diameter of each semicircular notch (11) is equal to the outer diameter of the pipeline (1), and the semicircular notches (11) can be completely attached to the outer surface of the pipeline (1);
arc-shaped clamping plates (12) are fixedly connected to one sides, far away from the bent plates (9), of the two groups of vertical plates (10), the central axes of the arc-shaped clamping plates (12) are overlapped with the central axes of the semicircular notches (11), and the inner walls of the arc-shaped clamping plates (12) can be completely attached to the outer surface of the pipeline (1);
the second shell (4) and the first shell (3) have the same structure and are symmetrical to each other;
the bent plate (9) on the first shell (3) is fixedly connected with the bent plate (9) on the second shell (4) through bolts; a sealed cavity (6) can be formed between the bent plate (9) on the first shell (3), the vertical plate (10) on the first shell (3), the bent plate (9) on the second shell (4), the vertical plate (10) on the second shell (4) and the outer surface of the pipeline (1);
an air inlet valve (8) is arranged on the first shell (3), and the air inlet valve (8) is communicated with the sealed cavity (6);
be provided with pressure switch (5) and siren (30) on first casing (3), pressure switch (5)'s detecting head extends inside sealed cavity (6), pressure switch (5) and siren (30) electric connection.
2. The pipe seal detection mechanism for an air separation plant according to claim 1, characterized in that: a first elastic rubber layer (13) is attached between the arc-shaped clamping plate (12) and the pipeline (1);
connecting blocks (14) are welded on two sides of the arc-shaped clamping plate (12);
the connecting block (14) on the first shell (3) is fixedly connected with the connecting block (14) on the second shell (4) through bolts; and a second elastic rubber layer (15) is attached between the connecting block (14) on the first shell (3) and the connecting block (14) on the second shell (4).
3. The pipe seal detection mechanism for an air separation plant according to claim 2, characterized in that: the outer wall of the vertical plate (10) is fixedly welded with an arc-shaped fixing plate (16), the arc-shaped fixing plate (16) is bent into a semicircle, and the central axis of the arc-shaped fixing plate (16) is superposed with the central axis of the arc-shaped clamping plate (12).
4. The pipe seal detection mechanism for an air separation plant according to claim 3, characterized in that: the arc-shaped fixing plate (16) is connected with a threaded knob (17) in a penetrating and screwed mode, and one end of the threaded knob (17) is tightly pressed and attached to the outer surface of the arc-shaped clamping plate (12).
5. The pipe seal detection mechanism for an air separation plant according to claim 4, characterized in that: the outer fixed surface of arc fixed plate (16) is connected with elasticity rubber slab (20), elasticity rubber slab (20) one side is provided with elasticity rubber lug (21), elasticity rubber lug (21) one side with the laminating of the knob end downside of screw knob (17).
6. The pipe seal detection mechanism for an air separation plant according to claim 4 or 5, characterized in that: the end part of the threaded knob (17) is provided with a pressing plate (19), and one side of the pressing plate (19) is tightly pressed and attached to the outer surface of the arc-shaped clamping plate (12).
7. The pipe seal detection mechanism for an air separation plant according to claim 1, characterized in that: connecting plates (22) are symmetrically arranged on two sides of the bent plate (9), the connecting plate (22) on the first shell (3) and the connecting plate (22) on the second shell (4) are symmetrical, and the connecting plate (22) on the first shell (3) and the connecting plate (22) on the second shell (4) are fixedly connected through bolts;
and a third elastic rubber layer (24) is arranged between the connecting plate (22) on the first shell (3) and the connecting plate (22) on the second shell (4).
8. The pipe seal detection mechanism for an air separation plant according to claim 7, characterized in that: the third elastic rubber layers (24) are provided with four groups, wherein two groups of the third elastic rubber layers (24) are respectively and fixedly connected to one sides of two groups of connecting plates (22) on the first shell (3), the other two groups of the third elastic rubber layers (24) are respectively and fixedly connected to one sides of two groups of connecting plates (22) on the second shell (4), a groove (26) is formed in the surface of the third elastic rubber layer (24) on the first shell (3), a first rubber convex strip (27) is arranged on the surface of the third elastic rubber layer (24) on the second shell (4), and one side of the first rubber convex strip (27) is clamped inside the groove (26).
9. The pipe seal detection mechanism for an air separation plant according to claim 1, characterized in that: the mechanism further comprises a housing seal detection mechanism; the housing seal detection mechanism comprises a first detection mechanism (29);
the first detection mechanism (29) comprises a water tank (2901);
a notch (2902) is formed in the water tank (2901), and the lower side of the notch (2902) can be attached to the lower surface of the pipeline (1);
two sets of fixed plates (2903) are fixedly connected to the outer wall of the water tank (2901), and the two sets of fixed plates (2903) are respectively arranged on two sides of the notch (2902).
10. The pipe seal detection mechanism for an air separation plant according to claim 9, characterized in that: a baffle plate (2904) is arranged between the two groups of fixing plates (2903) in a sliding way, and the lower side of the baffle plate (2904) can be attached to the upper surface of the pipeline (1); one side of the baffle plate (2904) is fixedly connected with a first hook (2910);
first extension springs (2909) are arranged on two sides of the notch (2902), the lower ends of the first extension springs (2909) are fixedly connected to the outer surface of the side wall of the water tank (2901), and the upper ends of the first extension springs (2909) are movably hung on first hooks (2910).
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| CN202010555462.5A CN111678052B (en) | 2020-06-17 | 2020-06-17 | Pipeline sealing detection mechanism for air separation device |
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| CN202010555462.5A CN111678052B (en) | 2020-06-17 | 2020-06-17 | Pipeline sealing detection mechanism for air separation device |
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| CN112984238A (en) * | 2021-03-25 | 2021-06-18 | 南通市扬子橡塑有限公司 | Rubber corrugated pipe for marine equipment engineering |
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| CN113866346A (en) * | 2021-07-20 | 2021-12-31 | 海洋石油工程股份有限公司 | Monitoring devices is revealed to umbilical cable upper portion methyl alcohol |
| CN114435411A (en) * | 2022-02-21 | 2022-05-06 | 重庆交通职业学院 | Rectangular traffic vacuum tunnel |
| CN115013627A (en) * | 2022-06-08 | 2022-09-06 | 合肥海博工程设计集团有限公司 | A old pipeline junction leak protection equipment for district transformation |
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| CN115013627A (en) * | 2022-06-08 | 2022-09-06 | 合肥海博工程设计集团有限公司 | A old pipeline junction leak protection equipment for district transformation |
| CN115013627B (en) * | 2022-06-08 | 2023-08-08 | 合肥海博工程设计集团有限公司 | Old pipeline joint leakage-proof equipment for community transformation |
| CN115199955A (en) * | 2022-07-14 | 2022-10-18 | 重庆大学 | Long-distance underground pipeline leakage monitoring device |
| CN115199955B (en) * | 2022-07-14 | 2024-04-16 | 重庆大学 | Long-distance underground pipeline leakage monitoring device |
| CN115356436A (en) * | 2022-07-26 | 2022-11-18 | 福州大学 | High leakproofness toxic gas analysis appearance |
| CN115356436B (en) * | 2022-07-26 | 2024-06-04 | 福州大学 | High leakproofness poisonous gas analysis appearance |
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