CN114486551B - Hydrostatic testing machine for connecting piece and pipe of pipeline heat tracing belt - Google Patents
Hydrostatic testing machine for connecting piece and pipe of pipeline heat tracing belt Download PDFInfo
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- CN114486551B CN114486551B CN202111582891.2A CN202111582891A CN114486551B CN 114486551 B CN114486551 B CN 114486551B CN 202111582891 A CN202111582891 A CN 202111582891A CN 114486551 B CN114486551 B CN 114486551B
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 239000002184 metal Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 238000005485 electric heating Methods 0.000 claims description 26
- 238000003825 pressing Methods 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 23
- 238000004804 winding Methods 0.000 description 15
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- -1 PVC-U Polymers 0.000 description 1
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/35—Ohmic-resistance heating
- F16L53/38—Ohmic-resistance heating using elongate electric heating elements, e.g. wires or ribbons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A hydrostatic testing machine for connecting pieces and pipes of pipeline heat tracing belts relates to the technical field of pipe testing. The utility model provides a connecting piece of pipeline companion area for be convenient for carry out technical reconstruction to tubular product hydrostatic test machine, including inner ring and outer loop, the outer loop cover is established at the outer lane of inner ring, the inner ring is formed by first inner ring unit and second inner ring unit concatenation, first inner ring unit with second inner ring unit is semicircle type respectively, first inner ring unit with second inner ring unit detachable connection, the outer loop is formed by first outer ring unit and second outer ring unit concatenation, can dismantle between first outer ring unit and the second outer ring unit and be connected, first outer ring unit and/or the inboard of second outer ring is equipped with the unwrapping wire mouth, inner ring with can relative rotation between the outer loop. The pipe hydrostatic testing machine comprises the pipeline heat tracing belt connecting piece.
Description
Technical Field
The invention relates to the technical field of pipe testing, in particular to a hydrostatic testing machine for connecting pieces and pipes of a pipeline heat tracing belt.
Background
The hydrostatic test of the pipe is used for measuring the pressure-resistant breaking time or the maximum pressure value of instantaneous explosion of various pipes such as thermoplastic pipes, composite pipes (such as PP-R, PP-B, PP-A, PE-X, PVC, PVC-U, PVC-C) and aluminum-plastic composite pipes under constant internal pressure and constant temperature for a long time. Is a necessary quality inspection test in the production process of plastic pipes.
The hydrostatic testing machine is a device for carrying out the above-described test procedure. One of the hydrostatic testing machines in the prior art comprises a testing machine water tank, wherein a plurality of water inlet pipes are connected to the testing machine water tank, and the water inlet pipes are used for injecting test water into the water tank. During the experiment, pressurization was performed by injecting water into a sealed water tank. The inside of the water tank of the testing machine is provided with a heating system, and the heating system in the water tank is used for heating water in the water tank so as to achieve the target test temperature; the heating system in the water tank is used for heating the water in the water tank in real time, so that the water is maintained at a constant temperature, and the temperature variation is controlled. The above-mentioned water inlet pipes of such a net hydraulic testing machine are filled with cold water into the water tank, and when water needs to be filled into the water tank to increase the pressure, the water temperature in the water tank is easily reduced in a period of time (the time required for heating the water), which is not good for the accuracy of the test results. The technical modification mode of the hydrostatic testing machine is as follows:
The water inlet system is greatly improved by adding another container for heating, and the water is heated in the additionally added container and then is injected into the water tank of the tester through the water inlet pipe. However, this development, because of the large adjustment of the lines and the increase in the heating devices, increases the costs of the technical improvement considerably. Meanwhile, in the process of technical improvement, how to save space as much as possible is a key problem.
Disclosure of Invention
The invention aims to provide a connecting piece of a pipeline heat tracing band, which is used for conveniently winding an electric heating heat tracing band on a small-distance pipe fitting, and further is convenient for technical improvement of a hydrostatic testing machine in the prior art. Thereby facilitating the technical improvement of the hydrostatic testing machine. The hydrostatic testing machine is used for solving the problem of low temperature of the new water source.
The technical scheme adopted for solving the technical problems is as follows:
The connecting piece of the pipeline heat tracing band comprises an inner ring and an outer ring, wherein the outer ring is sleeved on the outer ring of the inner ring, the inner ring is formed by splicing a first inner ring unit and a second inner ring unit, the first inner ring unit and the second inner ring unit are respectively semicircular, the first inner ring unit and the second inner ring unit are detachably connected, the outer ring is formed by splicing a first outer ring unit and a second outer ring unit, the first outer ring unit and the second outer ring unit are detachably connected, a paying-off opening is formed in the inner side of the first outer ring unit and/or the inner side of the second outer ring, the inner ring and the outer ring can rotate relatively, and a rotation locking piece is detachably connected between the inner ring and the outer ring.
The beneficial effects are that: the connecting piece of the pipeline heat tracing band is used for winding the electric heating heat tracing band on the pipeline and has the advantages that the connecting piece is favorable for rapidly, tightly and efficiently spirally winding the electric heating heat tracing band on the pipeline under the working condition that the distance between the pipelines is smaller and the rapid winding of the heat tracing band with larger length is unfavorable, so that the heating efficiency of the pipeline is improved.
Further, the tip of first inner loop unit is equipped with the inner ring inserted link, and the downside of inner ring inserted link is equipped with the hook piece, the tip of second inner loop unit is equipped with the inner ring jack, and the bottom of inner ring jack is equipped with and is used for with hook piece complex hook hole, and hook piece and inner ring inserted link can insert in the inner ring jack together, be equipped with the depression bar hole on the second inner loop unit, the depression bar hole is located the top in hook hole, be equipped with the depression bar in the depression bar hole, the depression bar is used for pushing down the hook piece in the hook hole.
The beneficial effects are that: the inner ring is convenient to be quickly connected to a pipeline or quickly detached from the pipeline by quick splicing or detaching of the inner ring.
Further, be provided with two at least wings on the depression bar, each wing distributes along the circumference of depression bar, the second inner ring unit is being located be equipped with two at least pressure boxes around the depression bar hole top, be equipped with the wing between two adjacent pressure boxes and get the mouth of putting.
The beneficial effects are that: the quick assembly and disassembly work of the compression rod is facilitated while the compression effect of the compression rod on the inner ring inserted rod is guaranteed, and the assembly or disassembly efficiency of the connecting piece of the pipeline heat tracing belt is improved.
Further, the hook block is in a structure with a large upper end and a small lower end.
The beneficial effects are that: the hook block can be smoothly pressed into the hook opening.
Further, the tip of first outer ring unit is equipped with outer loop inserted bar, the tip of second outer ring unit is equipped with outer loop jack, and outer loop jack is used for pegging graft outer loop inserted bar, is equipped with outer loop pinhole on the outer loop inserted bar, be equipped with the locking hole on the second outer ring unit, the locking hole is equipped with the internal thread, and the locking hole runs through the inside and outside both sides of second outer ring unit, is connected with locking screw in the locking hole, and locking screw passes outer loop pinhole.
The beneficial effects are that: the quick splicing or quick dismantling of the outer ring is facilitated.
Further, the inner ring of the inner ring is provided with rubber gasket grooves, the inner ring of the first inner ring unit and the inner ring of the second inner ring unit are respectively provided with rubber gasket groove units, the rubber gasket groove units are used for splicing the rubber gasket grooves, and a semicircular rubber gasket is respectively arranged in each rubber gasket groove.
The beneficial effects are that: the inner ring is convenient to be stably and fixedly connected to the connected pipe fitting, and meanwhile, the difficulty of splicing the inner ring is not increased.
Further, the outer ring of the outer ring is provided with a slideway groove, the outer ring of the first inner ring unit and the outer ring of the second inner ring unit are respectively provided with a slideway groove unit, the slideway groove units are used for splicing the slideway grooves, and the outer ring is sleeved in the slideway grooves.
The beneficial effects are that: when the outer ring needs to be rotated, the outer ring can smoothly rotate on the inner ring.
The hydrostatic testing machine for the pipe comprises a testing machine water tank, wherein a plurality of water inlet pipes are connected to the testing machine water tank, each water inlet pipe is connected with a metal pipe, each metal pipe is fixedly connected to a support, each metal pipe is wound with an electric heating heat tracing band, each metal pipe is provided with the connecting piece of the pipeline heat tracing band, the electric heating heat tracing band is spirally wound on the metal pipe, and the electric heating heat tracing band penetrates through the paying-off opening.
The beneficial effects are that: before water enters the water tank of the tester, the hydrostatic testing machine of the pipe firstly heats the metal pipe, and the hydrostatic testing machine of the pipe enters the water tank of the tester to ensure that the temperature of the water entering the water tank of the tester is consistent with the water temperature in the water tank of the tester, thereby being beneficial to controlling the test variables. The hydrostatic testing machine of the pipe is beneficial to the quick disassembly and assembly and winding of the electric heating heat tracing belt on the metal pipe through the connecting piece of the pipe heat tracing belt, can ensure the winding length, is beneficial to improving the cost of technical improvement on original equipment, improves the winding number of turns of the electric heating heat tracing belt, simultaneously is beneficial to reducing the space between the metal pipes as much as possible, and is beneficial to saving the space
Further, the metal tube is a copper tube.
The beneficial effects are that: and is beneficial to improving the heat transfer efficiency.
Further, the metal tube is coated in heat preservation cotton.
The beneficial effects are that: the heat preservation is formed during the heating process, which is beneficial to improving the heating efficiency.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of a connection for a conduit heat trace strip;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic view in section A-A of FIG. 2;
FIG. 4 is a schematic view in section B-B of FIG. 2;
fig. 5 is an enlarged view of a portion F in fig. 4;
FIG. 6 is a schematic view of section C-C of FIG. 2;
FIG. 7 is a schematic view of section D-D of FIG. 2;
FIG. 8 is a schematic cross-sectional E-E of FIG. 2;
FIG. 9 is a schematic illustration of a use of a pipe heat trace ribbon connector;
FIG. 10 is a schematic diagram of an embodiment of a hydrostatic testing machine for tubing;
In the figure: the device comprises a first inner ring unit, an inner ring inserting rod, a hook block, a slide channel unit, a second inner ring unit, an inner ring inserting hole, a hook hole, a 23 pressing rod, a 24 wing block, a 25 pressing box, a 26 wing block taking and placing opening, a first outer ring unit, a 31 paying-off opening, an outer ring inserting rod, a4 second outer ring unit, an outer ring inserting hole, a 42 locking screw, a 5 rubber pad, a6 inner ring, a 7 outer ring, an 8 metal pipe, an 81 electric heating heat tracing belt, a 82 limiting piece, a 9 test machine water tank, a 91 water inlet pipe, a 92 support and 93 heat insulation cotton.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The connection piece of the heat tracing band of the pipeline, referring to figures 1-8,
The connecting piece of the pipeline heat tracing belt comprises an inner ring and an outer ring, wherein the outer ring is sleeved on the outer ring of the inner ring. The inner ring is formed by splicing a first inner ring unit 1 and a second inner ring unit 2. The first inner ring unit 1 and the second inner ring unit 2 are respectively semicircular, and after being spliced, the two inner ring units form a circular inner ring. The first inner ring unit 1 and the second inner ring unit 2 are detachably connected, and the outer ring is formed by splicing the first outer ring unit 3 and the second outer ring unit 4. The first outer ring unit 3 and the second outer ring unit 4 are respectively semicircular, and are spliced to form a circular outer ring. The first outer ring unit 3 and the second outer ring unit 4 are detachably connected. Inside the first outer ring unit 3 and the second outer ring unit 4, a paying-off opening 31 is provided, and the paying-off opening 31 is in an open loop shape. The inner ring and the outer ring can rotate relatively, a rotation locking piece is detachably connected between the inner ring and the outer ring and used for locking the inner ring and the outer ring, and then the inner ring and the outer ring are locked in a state of being incapable of rotating relatively when needed.
Further, the end of the first inner ring unit 1 is provided with an inner ring insertion rod 11, and the cross section of the inner ring insertion rod 11 (a cross section perpendicular to the length extending direction thereof) is rectangular. The lower side of the inner ring inserting rod 11 is provided with a hook block 12, the end part of the second inner ring unit 2 is provided with an inner ring inserting hole 21, and the bottom of the inner ring inserting hole 21 is provided with a hook hole 22 for being matched with the hook block 12. The hook block 12 and the inner ring plunger 11 can be inserted together into the inner ring insertion hole 21. The hook block 12 and the inner ring inserted rod 11 are fixedly connected, and can be processed into an integrated structure during processing. The second inner ring unit 2 is provided with a pressure lever hole which is positioned above the hook hole 22, and a pressure lever 23 is arranged in the pressure lever hole. The pressing lever 23 serves to press down the hook block 12 into the hook hole 22. The first inner ring units 1 include two end portions, and the end portion of each first inner ring unit is provided with the above-mentioned inner ring inserting rod and hook block structure. The second inner ring units 2 include two end portions, and the above-described inner ring insertion hole and hook hole structures are provided on the end portions of each second inner ring unit 2. The structure of the first inner ring unit 1 and the second inner ring unit 2 is beneficial to quick detachable splicing work between the first inner ring unit 1 and the second inner ring unit 2, and is beneficial to ensuring the tightness and firmness degree of the first inner ring unit 1 and the second inner ring unit 2 after connection. The splicing process of the first inner ring unit 1 and the second inner ring unit 2 is as follows: the hook block 12 is inserted into the inner ring insertion hole 21 along with the inner ring insertion rod 11, so that the hook block 12 is inserted above the hook hole 22, the first inner ring unit 1 slides downwards relative to the second inner ring unit 2, the hook block 12 is inserted into the hook hole 22, the compression rod 23 is connected into the compression rod hole, the lower end of the compression rod 23 presses the hook block 12 into the hook hole 22, and further, the relative displacement of the first inner ring unit and the second inner ring unit in the radial direction is avoided. The lower side of the inner ring plunger 11 is also pressed against the bottom surface of the inner ring insertion hole 21, thereby preventing the first inner ring unit and the second inner ring unit from being displaced in the axial direction.
Further, as a preferred embodiment of a connection of the pressure lever 23 to the second inner ring unit 2. The compression bar 23 is provided with at least two wing blocks 24, and each wing block 24 is distributed along the circumferential direction of the compression bar 23. The second inner ring unit 2 is provided with at least two pressing boxes 25 around the periphery above the hole of the pressing rod 23, and a wing block taking and placing opening 26 is arranged between two adjacent pressing boxes 25. When the upper part of the hook block 12 needs to be pressed, the pressing rod 23 is inserted into the pressing rod hole, the wing block 24 is placed below the upper cover plate of the pressing box through the wing block taking and placing opening 26, the pressing rod 23 is rotated, the wing block 24 is screwed into the pressing box 25, and the pressing rod 23 is fixed in the axial direction, so that the pressing rod is effectively pressed above the hook block.
The detachable connection of the pressure bar 23 to the second inner ring unit may be achieved by screwing the pressure bar to the second inner ring unit, in addition to the preferred solution described above.
Further, the hook block 12 has a structure with a large upper end and a small lower end.
Further, the end of the first outer ring unit 3 is provided with an outer ring insert rod 32, and the end of the second outer ring unit 4 is provided with an outer ring insertion hole 41. The outer ring insertion hole 41 is used for inserting the outer ring insertion rod 32, and an outer ring pin hole (a portion of the locking screw 42 passing through the outer ring insertion rod) is formed in the outer ring insertion rod 32. The second outer ring unit 4 is provided with locking holes which penetrate through the inner side and the outer side of the second outer ring unit 4. The locking hole is provided with an internal thread which may be provided in only one of the sections of the locking hole. A locking screw rod 42 is connected in the locking hole, and the locking screw rod 42 penetrates through the outer ring pin hole. As a technical solution for a preferably detachable connection between the first outer ring unit 3 and the second outer ring unit, when the first outer ring unit 3 and the second outer ring unit 4 are spliced, the outer ring insert rod 32 is inserted into the outer ring insertion hole 41 first, and then a locking screw rod is inserted between the second outer ring unit and the outer ring insert rod 32, so as to fix the first outer ring unit and the second outer ring unit in place. Meanwhile, the locking screw rod 42 can be used as a rotation locking piece as described above, namely, the locking screw rod 42 is connected in the pin hole of the outer ring through threads, and the inner end of the locking screw rod is pressed towards the inner ring, so that detachable locking work can be carried out between the inner ring and the outer ring.
Further, the inner ring of the inner ring is provided with rubber gasket grooves, the inner ring of the first inner ring unit 1 and the inner ring of the second inner ring unit 2 are respectively provided with rubber gasket groove units, the rubber gasket groove units are used for splicing the rubber gasket grooves, and a semicircular rubber gasket 5 is respectively arranged in each rubber gasket groove. The elastic characteristic of the rubber pad 5 is used for tightly holding the inner ring on the connected pipeline, and meanwhile, excessive resistance is not caused to the splicing of the first inner ring unit and the second inner ring unit.
Further, the outer ring of the outer ring is provided with a slideway groove, the outer ring of the first inner ring unit 1 and the outer ring of the second inner ring unit 2 are respectively provided with a slideway groove unit 13, the slideway groove units 13 are used for splicing the slideway grooves, and the outer ring is sleeved in the slideway grooves. The sliding way groove is arranged, so that the inner diameter of the inner ring is set to be slightly larger than the outer diameter of the sliding way groove unit, and smooth sliding between the inner ring and the outer ring is facilitated under the condition that the outer ring rotates relative to the inner ring.
The connecting piece of the pipeline heat tracing band is used for winding the electric heating heat tracing band on the pipeline and has the advantages that the connecting piece is favorable for rapidly, tightly and efficiently spirally winding the electric heating heat tracing band on the pipeline under the working condition that the distance between the pipelines is smaller and the rapid winding of the heat tracing band with larger length is unfavorable, so that the heating efficiency of the pipeline is improved.
As shown in fig. 9, the use of the connection piece of the heat tracing band of the pipeline and its technical effects are specifically described by taking two metal pipes 8 with relatively large distance as an example: two connecting pieces for the heat tracing band of the pipeline are respectively arranged on each metal pipe 8. For convenience of description, the connection piece of the pipe heat tracing band will be simply referred to as a connection piece, and the winding process of the electric heating heat tracing band 81 on the metal pipe 8 is as follows: the inner rings of the two connecting pieces are respectively spliced on the metal tube 8, the two inner rings are respectively clamped on the metal tube 8, a limiting piece 82 is fixedly connected to the free end (the end far away from the power supply) of the electric heating heat tracing band 81 (a rubber block can be pasted to be used as the limiting piece), an outer ring is respectively spliced on each inner ring correspondingly, before the outer rings are spliced, the electric heating heat tracing band 81 is firstly put in the paying-off opening 31, the outer ring far away from the free end of the electric heating heat tracing band is locked on the corresponding inner ring, the outer ring of the other connecting piece is rotated, the electric heating heat tracing band is wound on the metal tube, after winding is completed, the outer ring close to the free end of the electric heating heat tracing band is fixed on the inner ring, and meanwhile, the other limiting piece can be connected to the outer side part of the electric heating heat tracing band, which is positioned on the outer side part of the other outer ring.
As shown in fig. 10, the hydrostatic testing machine for the pipe comprises a testing machine water tank 9, wherein a plurality of water inlet pipes 91 are connected to the testing machine water tank, and each water inlet pipe is connected with a metal pipe 8. Each metal tube 8 is fixedly connected to the support 92, the electric heating heat tracing band 81 is wound on each metal tube, at least two connecting pieces of the pipeline heat tracing band are arranged on each metal tube, the electric heating heat tracing band is spirally wound on the metal tube, and the electric heating heat tracing band passes through the paying-off opening 31. The metal tube is preferably a copper tube. The metal tube is wrapped in insulation wool 93. According to the hydrostatic testing machine for the pipe provided by the invention, before water enters the testing machine water tank 9, heating work is performed in the metal pipe 8, and the water enters the testing machine water tank 9 to ensure that the temperature of the water entering the testing machine water tank 9 is consistent with the water temperature in the testing machine water tank 9, so that the control of the testing variable is facilitated. The hydrostatic testing machine of the pipe is beneficial to the quick disassembly and assembly and winding of the electric heating heat tracing belt on the metal pipe through the connecting piece of the pipe heat tracing belt, can ensure the winding length, is beneficial to improving the cost of technical improvement on original equipment, improves the winding number of turns of the electric heating heat tracing belt, simultaneously is beneficial to reducing the space between the metal pipes as much as possible, and is beneficial to saving the space.
Claims (9)
1. The connecting piece for the pipeline heat tracing band is characterized by comprising an inner ring and an outer ring, wherein the outer ring is sleeved on the outer ring of the inner ring, the inner ring is formed by splicing a first inner ring unit and a second inner ring unit, the first inner ring unit and the second inner ring unit are respectively in a semicircle shape, the first inner ring unit and the second inner ring unit are detachably connected, the outer ring is formed by splicing a first outer ring unit and a second outer ring unit, the first outer ring unit and the second outer ring unit are detachably connected, a paying-off opening is formed in the inner side of the first outer ring unit and/or the inner side of the second outer ring, the inner ring and the outer ring can rotate relatively, and a rotation locking piece is detachably connected between the inner ring and the outer ring;
The end of the first inner ring unit is provided with an inner ring inserted link, the lower side of the inner ring inserted link is provided with a hook block, the end of the second inner ring unit is provided with an inner ring jack, the bottom of the inner ring jack is provided with a hook hole matched with the hook block, the hook block and the inner ring inserted link can be inserted into the inner ring jack together, the second inner ring unit is provided with a pressure lever hole, the pressure lever hole is positioned above the hook hole, the pressure lever hole is provided with a pressure lever, and the pressure lever is used for pressing the hook block down in the hook hole.
2. The connecting piece for a pipeline heat tracing band according to claim 1, wherein at least two wing blocks are arranged on the pressure rod, each wing block is distributed along the circumferential direction of the pressure rod, at least two pressing boxes are arranged on the periphery of the second inner ring unit above the pressure rod hole, and a wing block taking and placing opening is arranged between every two adjacent pressing boxes.
3. The connector for a heat trace of a pipeline according to claim 1, wherein the hooking block has a structure with a large upper end and a small lower end.
4. The connecting piece for a pipeline heat tracing band according to claim 1, wherein an outer ring inserting rod is arranged at the end part of the first outer ring unit, an outer ring inserting hole is arranged at the end part of the second outer ring unit, the outer ring inserting hole is used for inserting the outer ring inserting rod, an outer ring pin hole is arranged on the outer ring inserting rod, a locking hole is arranged on the second outer ring unit, the locking hole penetrates through the inner side and the outer side of the second outer ring unit, internal threads are arranged on the locking hole, a locking screw rod is connected in the locking hole, and the locking screw rod penetrates through the outer ring pin hole.
5. The connecting piece for a pipeline heat tracing band according to claim 1, wherein the inner ring of the inner ring is provided with rubber gasket grooves, the inner ring of the first inner ring unit and the inner ring of the second inner ring unit are respectively provided with rubber gasket groove units, the rubber gasket groove units are used for splicing the rubber gasket grooves, and each rubber gasket groove is internally provided with a semicircular rubber gasket.
6. The connecting piece for a pipeline heat tracing band according to claim 1, wherein the outer ring of the outer ring is provided with a slideway groove, the outer ring of the first inner ring unit and the outer ring of the second inner ring unit are respectively provided with a slideway groove unit, the slideway groove units are used for splicing the slideway grooves, and the outer ring is sleeved in the slideway grooves.
7. The hydrostatic testing machine for the pipe comprises a testing machine water tank, wherein a plurality of water inlet pipes are connected to the testing machine water tank, and the hydrostatic testing machine is characterized in that each water inlet pipe is connected with a metal pipe, each metal pipe is fixedly connected to a support, an electric heating heat tracing band is wound on each metal pipe, at least two connecting pieces of the pipeline heat tracing band according to any one of claims 1-6 are arranged on each metal pipe, the electric heating heat tracing band is spirally wound on the metal pipe, and the electric heating heat tracing band penetrates through the paying-off opening.
8. The hydrostatic testing machine of claim 7, wherein said metal tube is a copper tube.
9. The hydrostatic testing machine of claim 7, wherein said metal tube is encased in insulation wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582891.2A CN114486551B (en) | 2021-12-22 | 2021-12-22 | Hydrostatic testing machine for connecting piece and pipe of pipeline heat tracing belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582891.2A CN114486551B (en) | 2021-12-22 | 2021-12-22 | Hydrostatic testing machine for connecting piece and pipe of pipeline heat tracing belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114486551A CN114486551A (en) | 2022-05-13 |
| CN114486551B true CN114486551B (en) | 2024-05-03 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2492069Y (en) * | 2001-07-18 | 2002-05-22 | 国贸(香港)有限公司 | One-way clutch for rotary reel |
| CN201583295U (en) * | 2009-12-18 | 2010-09-15 | 铁岭市光明仪器仪表厂 | Heat-tracing PitotBar flow sensor |
| WO2016189480A1 (en) * | 2015-05-26 | 2016-12-01 | Cogne Macchine Tessili S.P.A. | Twisting and winding device for twisting and winding a thread on a spindle |
| CN108575661A (en) * | 2018-01-22 | 2018-09-28 | 国网福建省电力有限公司福州供电公司 | A kind of rope winder |
| CN210293917U (en) * | 2019-06-26 | 2020-04-10 | 南京乐洁新型材料有限公司 | Hydrostatic test machine for detecting pressure resistance of hollow wall winding pipe |
| CN213186615U (en) * | 2020-09-23 | 2021-05-11 | 芜湖科阳新材料股份有限公司 | Self-limiting temperature tracing band fixing device |
| CN113800340A (en) * | 2021-09-03 | 2021-12-17 | 哈尔滨工程大学 | Electric tracing band winding device |
-
2021
- 2021-12-22 CN CN202111582891.2A patent/CN114486551B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2492069Y (en) * | 2001-07-18 | 2002-05-22 | 国贸(香港)有限公司 | One-way clutch for rotary reel |
| CN201583295U (en) * | 2009-12-18 | 2010-09-15 | 铁岭市光明仪器仪表厂 | Heat-tracing PitotBar flow sensor |
| WO2016189480A1 (en) * | 2015-05-26 | 2016-12-01 | Cogne Macchine Tessili S.P.A. | Twisting and winding device for twisting and winding a thread on a spindle |
| CN108575661A (en) * | 2018-01-22 | 2018-09-28 | 国网福建省电力有限公司福州供电公司 | A kind of rope winder |
| CN210293917U (en) * | 2019-06-26 | 2020-04-10 | 南京乐洁新型材料有限公司 | Hydrostatic test machine for detecting pressure resistance of hollow wall winding pipe |
| CN213186615U (en) * | 2020-09-23 | 2021-05-11 | 芜湖科阳新材料股份有限公司 | Self-limiting temperature tracing band fixing device |
| CN113800340A (en) * | 2021-09-03 | 2021-12-17 | 哈尔滨工程大学 | Electric tracing band winding device |
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| CN114486551A (en) | 2022-05-13 |
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