CN215065703U - Pipeline flow erosion corrosion test device simulates - Google Patents
Pipeline flow erosion corrosion test device simulates Download PDFInfo
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- CN215065703U CN215065703U CN202121119659.0U CN202121119659U CN215065703U CN 215065703 U CN215065703 U CN 215065703U CN 202121119659 U CN202121119659 U CN 202121119659U CN 215065703 U CN215065703 U CN 215065703U
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Abstract
The utility model provides a test device for simulating pipeline flowing scouring corrosion, wherein a test cavity is arranged in an experiment cabin; one port of the upstream pipeline is communicated with an inlet of the experiment chamber, the other port of the upstream pipeline is communicated with a fluid medium storage device, and an upstream temperature sensor and an upstream pressure sensor are respectively arranged on the upstream pipeline; one port of the downstream pipeline is communicated with an outlet of the experiment chamber, the fluid medium in the fluid medium storage device sequentially passes through the upstream pipeline, the experiment cavity and the downstream pipeline, and the downstream pipeline is respectively provided with a downstream temperature sensor and a downstream pressure sensor; the test tube sample is mounted in the test cavity. The utility model provides a simulation pipeline flow erosion corrosion test device can place experimental pipe fitting sample in experimental cavity, through making fluid medium through experimental cavity erosion test pipe fitting sample, studies the erosion corrosion law of fluid medium to the operating condition pipe wall.
Description
Technical Field
The utility model relates to a pipeline corrosion test device technical field, more specifically the pipeline flow erosion corrosion test device that says so relates to a simulation pipeline.
Background
In many fields such as petrochemical industry, pipeline operation safety, all need media such as pipeline transport gas, liquid or liquid-solid mixture, and because many fluid medium have corrosivity, can cause the corruption to the inner wall of pipeline, for the progress in pipeline transport field, consequently research fluid medium has great meaning to the erosion and corrosion law of pipeline.
However, at present, the erosion corrosion rule of the fluid medium on the pipe wall in the actual working condition is estimated only according to actual experience, and a test device for simulating the flowing erosion corrosion of the pipeline is not provided.
In addition, in actual conditions, the flowing erosion corrosion of the fluid medium in the pipe is complex, when the flowing direction of the fluid medium (the flowing direction when the fluid medium is flowing) and the wall surface of the advancing direction (the direction in which the fluid medium is going to advance, but the inner wall of the pipe to which the fluid medium has not yet flowed) have an angle, the mechanical action and the corrosion synergistic action make it difficult to predict the loss prevention.
Therefore, how to provide a test device capable of adjusting the inclination angle of a test pipe fitting and simulating multi-angle pipeline flow erosion corrosion is a problem that needs to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a simulation pipeline flow erosion corrosion test device can place experimental pipe fitting sample in experimental cavity, through making fluid medium through experimental cavity erosion test pipe fitting sample, studies the erosion corrosion law of fluid medium to the operating condition pipe wall.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a test device for simulating the flowing erosion corrosion of a pipeline comprises:
the experiment chamber is internally provided with an experiment cavity, one end of the experiment chamber is provided with an inlet communicated with the experiment cavity, and the other end of the experiment chamber is provided with an outlet communicated with the experiment cavity;
one port of the upstream pipeline is communicated with an inlet of the experiment chamber, the other port of the upstream pipeline is communicated with a fluid medium storage device, and an upstream temperature sensor and an upstream pressure sensor are respectively arranged on the upstream pipeline;
a downstream pipeline, wherein one port of the downstream pipeline is communicated with an outlet of the experiment chamber, the fluid medium in the fluid medium storage device sequentially passes through the upstream pipeline, the experiment cavity and the downstream pipeline, and the downstream pipeline is respectively provided with a downstream temperature sensor and a downstream pressure sensor;
a test tube sample mounted in the test cavity.
Preferably, the experimental chamber comprises:
the two ports of the test pipeline section are an inlet and an outlet of the test chamber in a one-to-one correspondence mode, the inner cavity of the test pipeline section is the test cavity, and the two ends of the test pipeline section are connected with the upstream pipeline and the downstream pipeline in a one-to-one correspondence mode through flanges;
the test piece fixing clamp is fixed on the wall of the inner cavity of the test pipeline section, meanwhile, the test pipe sample is fixed on the test piece fixing clamp, fluid media in the fluid medium storage device sequentially pass through the upstream pipeline, the inner cavity of the test pipeline section and the downstream pipeline, and the fluid media flowing through the inner cavity of the test pipeline section erodes the test pipe sample.
Preferably, the inner chamber wall of test pipeline section has been seted up the draw-in groove, the draw-in groove is the strip, follows the axial extension of test pipeline section, just the draw-in groove extends to the port of test pipeline section, in order to form the port of draw-in groove, test piece mounting fixture follows the port sliding clamping of draw-in groove connects to in the draw-in groove, simultaneously it has anchor clamps fixing device to connect through its port sliding clamping in the draw-in groove, just anchor clamps fixing device is close to the port of draw-in groove, the relative both ends one-to-one butt of anchor clamps fixing device test piece mounting fixture and with anchor clamps fixing device is adjacent the ring flange.
Preferably, the test piece fixing clamp is a variable-angle test piece fixing clamp, the test pipeline section is a bent pipe section, one end of the clamping groove extends to one port of the bent pipe section, one end of the variable-angle test piece fixing clamp is abutted to the clamp fixing device, and the other end of the variable-angle test piece fixing clamp is abutted to the inner wall of the bent part of the bent pipe section.
Preferably, the specimen fixing jig includes:
the bottom plate is clamped in the clamping groove, two mutually parallel strip-shaped vertical plates are fixed on one side of the bottom plate, which is far away from the clamping groove, at intervals, the length direction of each strip-shaped vertical plate is parallel to the length direction of the bottom plate, strip-shaped guide holes are formed in the two strip-shaped vertical plates along the length direction of the two strip-shaped vertical plates, and the two strip-shaped guide holes are arranged oppositely;
the test piece fixing plate is positioned on the two strip-shaped vertical plates, the test piece fixing plate is hinged with the same ends of the two strip-shaped vertical plates, a strip-shaped guide groove is formed in one surface, close to the strip-shaped vertical plates, of the test piece fixing plate along the length direction of the test piece fixing plate, and meanwhile, a test pipe sample is fixed on one surface, far away from the strip-shaped vertical plates, of the test piece fixing plate;
the two ends of the sliding rod penetrate through the two strip-shaped guide holes in a one-to-one correspondence mode, the sliding rod can move in the two strip-shaped guide holes, meanwhile, the two ends of the sliding rod are provided with threads, the two ends of the sliding rod are connected with first adjusting nuts in a threaded mode, and meanwhile the outer diameter of each first adjusting nut is larger than the hole width of each strip-shaped guide hole;
the sliding block is fixed on the sliding rod, is positioned between the two strip-shaped vertical plates and is connected with the strip-shaped guide groove in a sliding mode.
Preferably, a first magnet groove is formed in one surface, close to the base plate, of the test piece fixing plate, and a magnet is embedded and fixed in the first magnet groove.
Preferably, test piece mounting fixture is horizontal test piece mounting fixture, the test pipeline section is the straight tube section, the both ends one-to-one of draw-in groove extends to two ports of straight tube section, just be close to in the draw-in groove two ports department of straight tube section all slip anchor clamps fixing device of joint, and every anchor clamps fixing device's one end butt horizontal test piece mounting fixture, other end butt are adjacent on the ring flange.
Preferably, the fixture fixing device is adjustable in length.
Preferably, the jig fixing device includes: the adjusting device comprises a first cover plate, a second cover plate, a first adjusting rod, a second adjusting rod, a third adjusting rod, an adjusting bolt and a second adjusting nut; the first cover plate and the second cover plate are arranged in parallel at intervals, the first cover plate is abutted against the test piece fixing clamp, and the second cover plate is abutted against the adjacent flange plate; the first adjusting rod is vertically fixed on the first cover plate, the second adjusting rod and the third adjusting rod are vertically fixed on the second cover plate, the second adjusting rod and the third adjusting rod are arranged at intervals and in parallel, the first adjusting rod, the second adjusting rod and the third adjusting rod are positioned between the first cover plate and the second cover plate, the second adjusting rod and the third adjusting rod are provided with positioning through holes which are arranged oppositely at the same position, the first adjusting rod is provided with a plurality of adjusting through holes along the length direction, the first adjusting rod can slide between the second adjusting rod and the third adjusting rod, so that one of the adjusting through holes corresponds to the positioning through hole, the adjusting bolt is inserted in the positioning through hole and the adjusting through hole corresponding to the positioning through hole, and meanwhile, the adjusting bolt is in threaded connection with the second adjusting nut.
Preferably, the fluid medium storage device comprises:
the liquid storage tank is communicated with the upstream pipeline through a first pipeline, the first pipeline is respectively communicated with a pump, a first valve and a liquid flowmeter, and liquid or a solid-liquid mixture is loaded in the liquid storage tank;
the air compressor is communicated with the upstream pipeline through a second pipeline, the second pipeline is respectively communicated with a gas storage tank, a cold dryer, a second valve and a gas flowmeter, and the gas storage tank is close to the liquid storage tank.
Preferably, the upstream line and the first line have the same inner diameter, and the length of the line between the pump and the test chamber is not less than 140 times the inner diameter of the first line.
Preferably, a heater is placed in the liquid storage tank.
Preferably, the test pipeline section is a bent pipe section, one end of the clamping groove extends to one port of the test pipeline section, one end of the test piece fixing clamp abuts against the clamp fixing device, and the other end of the test piece fixing clamp abuts against the inner wall of the bent part of the bent pipe section.
Preferably, the test pipeline section is the straight tube section, the both ends one-to-one of draw-in groove extends to two ports of test pipeline section, be close to in the draw-in groove equal slip joint one of two ports department of test pipeline section anchor clamps fixing device, with will test piece mounting fixture shutoff is in the draw-in groove, and every anchor clamps fixing device's one end butt test piece mounting fixture, other end butt are adjacent on the ring flange.
Preferably, the test piece fixing clamp is a flat plate, the flat plate is clamped in the clamping groove, and the test pipe fitting sample is fixed on one surface of the flat plate, which is far away from the clamping groove.
Preferably, a second magnet groove is formed in one surface, close to the clamping groove, of the flat plate, and a magnet is embedded and fixed in the second magnet groove.
Preferably, the clamping grooves are a plurality of and are uniformly arranged at intervals along the circumferential direction of the inner cavity wall of the test pipeline section.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a simulation pipeline flows erodees corrosion test device can realize following technological effect:
1. the angle of the test pipe sample in the test cavity can be adjusted, so that the influence rule of the fluid medium flow on the erosion corrosion of the test pipe sample when the test pipe sample has different inclination angles is researched;
2. the utility model designs a steady flow section with enough length between the pump and the experiment chamber, which makes the mixed state tend to be stable before the mixed flowing medium enters the experiment pipe section, and eliminates the influence of flow field disturbance in the experiment chamber caused by factors such as the pump;
3. the utility model discloses can carry out liquid erosion corrosion analogue test, solid-liquid mixture erosion corrosion analogue test, gas erosion corrosion analogue test, solid, liquid, gas mixture erosion corrosion analogue test and liquid and gas mixture erosion corrosion analogue test.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a device for simulating erosion corrosion of pipeline flow according to the present invention;
fig. 2 is a front half-sectional view of an angle experiment chamber in embodiment 1 of the present invention;
fig. 3 is a side view of the angle experiment chamber in embodiment 1 of the present invention;
FIG. 4 is a side view of a test piece fixing jig according to embodiment 1 of the present invention;
fig. 5 is a top view of a strip-shaped vertical plate fixed on a bottom plate of a test piece fixing clamp in embodiment 1 of the present invention;
fig. 6 is a front view of a test piece fixing plate of the test piece fixing clamp in embodiment 1 of the present invention, the front view being close to one side of a bar-shaped vertical plate;
fig. 7 is an elevation view of a test piece fixing plate of the test piece fixing clamp in embodiment 1 of the present invention, the side of the test piece fixing plate being away from the bar-shaped vertical plate;
fig. 8 is a schematic structural view of the fixture fixing device of the present invention;
fig. 9 is a front half-sectional view of an angle experiment chamber in embodiment 2 of the present invention;
fig. 10 is a side view of the angle experiment chamber in embodiment 2 of the present invention;
fig. 11 is a sectional view of the horizontal specimen fixing clamp in embodiment 2 of the present invention.
Wherein, 1-experiment chamber; 10-a test cavity; 2-upstream piping; 3-a fluid medium storage means; 21-an upstream temperature sensor; 22-an upstream pressure sensor; 4-a downstream pipeline; 41-a downstream temperature sensor; 42-a downstream pressure sensor; 11-test pipe section; 101-a flange plate; 12-test piece fixing clamp; 13-horizontal test piece fixing clamp; 110-card slot; 5-a clamp fixture; 121-a bottom plate; 120-strip guide holes; 122-a strip-shaped vertical plate; 123-a specimen fixing plate; 130-strip-shaped guide grooves; 125-a first adjusting nut; 126-a slider; 102-a first magnet slot; 51-a first cover plate; 52-a second cover plate; 53-first adjustment lever; 54-a second adjustment lever; 55-a third adjusting rod; 56-adjusting bolt; 57-a second adjusting nut; 31-a liquid storage tank; 310-a first conduit; 311-a pump; 312-a first valve; 313-a liquid flow meter; 32-an air compressor; 320-a second conduit; 321-an air storage tank; 322-cool drying machine; 323-a second valve; 324-a gas flow meter; 314-a heater; 103-a second magnet slot; 9-flow rate control loop; 8-a first mounting groove; 6-a second mounting groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses simulation pipeline flows erodees corrosion test device, include:
the experiment chamber 1 is provided with a test cavity 10 inside, one end of the experiment chamber 1 is provided with an inlet communicated with the test cavity 10, and the other end of the experiment chamber 1 is provided with an outlet communicated with the test cavity 10;
an upstream pipeline 2, one port of the upstream pipeline 2 is communicated with the inlet of the experiment chamber 1, the other port is communicated with a fluid medium storage device 3, and an upstream temperature sensor 21 and an upstream pressure sensor 22 are respectively arranged on the upstream pipeline 2;
a downstream pipeline 4, wherein one port of the downstream pipeline 4 is communicated with an outlet of the experiment chamber 1, the fluid medium in the fluid medium storage device 3 sequentially passes through the upstream pipeline 2, the experiment cavity 10 and the downstream pipeline 4, and a downstream temperature sensor 41 and a downstream pressure sensor 42 are respectively installed on the downstream pipeline 4;
a test tube sample, which is mounted in the test cavity 10.
The fluid medium in the fluid medium storing device 3 of the utility model sequentially passes through the upstream pipeline 2, the test cavity 10 and the downstream pipeline 4, because the test pipe sample is arranged in the test cavity 10, the fluid medium can wash the test pipe sample, and correspondingly collects the temperature and pressure parameters of the fluid medium in the upstream of the test chamber 1 through the upstream temperature sensor 21 and the upstream pressure sensor 22, and correspondingly collects the temperature and pressure parameters of the fluid medium in the downstream of the test chamber 1 through the downstream temperature sensor 41 and the downstream pressure sensor 42, so as to research the rule of the erosion corrosion of the fluid medium to the test pipe sample, and because the angle of the test pipe sample in the test cavity 10 can be adjusted, the different inclination angles of the test pipe sample in the test cavity 10 can be adjusted, and the multi-group test can be carried out corresponding to the different inclination angles of the test pipe sample, so as to simulate the erosion and corrosion influence rule of the fluid medium flow on the pipe wall under the condition of multiple angles.
In order to further optimize the above technical solution, the experimental chamber 1 comprises:
the test pipeline section 11, two ports of the test pipeline section 11 are an inlet and an outlet of the test chamber 1, one to one correspondence, an inner cavity of the test pipeline section 11 is a test cavity 10, and two ends of the test pipeline section 11 are connected with the upstream pipeline 2 and the downstream pipeline 4 through flanges 101 in a one to one correspondence manner;
the test piece fixing clamp 12 is fixed on the wall of the inner cavity of the test pipeline section 11, the test pipe sample is fixed on the test piece fixing clamp 12, the fluid medium in the fluid medium storage device 3 sequentially passes through the upstream pipeline 2, the inner cavity of the test pipeline section 11 and the downstream pipeline 4, and the fluid medium flowing through the inner cavity of the test pipeline section 11 flushes the test pipe sample.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the two ends of the test pipeline section 11 are correspondingly connected with the upstream pipeline 2 and the downstream pipeline 4 through the flange plates 101 one by one, so that the test pipeline section 11, the upstream pipeline 2 and the downstream pipeline 4 can be conveniently and detachably connected; and simultaneously, the utility model discloses a test piece mounting fixture 12 fixes the test tube spare sample on the inner chamber wall of test pipeline section 11 to can easy to assemble, dismantle and change the test tube spare sample.
In order to further optimize the technical scheme, a clamping groove 110 is formed in the inner cavity wall of the test pipeline section 11, the clamping groove 110 is strip-shaped and extends along the axial direction of the test pipeline section 11, the clamping groove 110 extends to a port of the test pipeline section 11 to form the port of the clamping groove 110, the test piece fixing clamp 12 is connected to the clamping groove 110 from the port of the clamping groove 110 in a sliding clamping mode, meanwhile, the clamping groove 110 is connected with the clamp fixing device 5 through the port of the clamping groove 110 in a sliding clamping mode, the clamp fixing device 5 is close to the port of the clamping groove 110, and two opposite ends of the clamp fixing device 5 are correspondingly abutted to the test piece fixing clamp 12 and the flange plate 101 adjacent to the clamp fixing device 5 one by one.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: be convenient for with test piece mounting fixture 12 from the dismouting on the inner chamber wall of test pipeline section 11, thereby easy to assemble, dismantle and change experimental pipe fitting sample, simultaneously through being close to the port department of test pipeline section 11 with the slip joint of anchor clamps fixing device 5 in draw-in groove 110, thereby prevent test piece mounting fixture 12 from the port department slippage of draw-in groove 110, simultaneously anchor clamps fixing device 5 relative both ends one-to-one butt test piece mounting fixture 12 and flange 101, can make test piece mounting fixture 12 and anchor clamps fixing device 5's length and the length that equals draw-in groove 110, so that alright in order to make the stable embedding of test piece mounting fixture 12 in draw-in groove 110, thereby prevent that the in-process of fluid medium scouring experimental pipe fitting sample from leading to test piece mounting fixture 12 to rock, consequently, can reduce the utility model discloses an experimental error.
In order to further optimize the technical scheme, the test piece fixing clamp is a variable-angle test piece fixing clamp 12, the test pipeline section 11 is a bent pipe section, one end of the clamping groove 110 extends to one port of the bent pipe section, one end of the variable-angle test piece fixing clamp 12 abuts against the clamp fixing device 5, and the other end of the variable-angle test piece fixing clamp abuts against the inner wall of the bent part of the bent pipe section.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the inclination angle of the test pipe sample is changed through the test piece fixing clamp 12, namely, the angle between the flowing direction of the fluid medium (the flowing direction when the fluid medium is flowing) and the wall surface of the advancing direction of the fluid medium (the direction in which the fluid medium is going to advance, but the fluid medium does not flow to the inner wall of the pipe) can be adjusted, so that the erosion and corrosion influence rule of the flowing of the fluid medium on the pipe wall under the condition of multiple angles can be simulated.
In order to further optimize the above technical solution, the specimen fixing jig 12 includes:
the bottom plate 121 is clamped in the clamping groove 110, two strip-shaped vertical plates 122 which are parallel to each other are fixed on one side of the bottom plate 121, which is far away from the clamping groove 110, at intervals, the length direction of each strip-shaped vertical plate 122 is parallel to the length direction of the bottom plate 121, strip-shaped guide holes 120 are formed in the two strip-shaped vertical plates 122 along the length direction of the two strip-shaped vertical plates, and the two strip-shaped guide holes 120 are arranged oppositely;
the test piece fixing plate 123 is positioned on the two strip-shaped vertical plates 122, the test piece fixing plate 123 is hinged with the same ends of the two strip-shaped vertical plates 122, strip-shaped guide grooves 130 are formed in one surface, close to the strip-shaped vertical plates 122, of the test piece fixing plate 123 along the length direction of the test piece fixing plate, and meanwhile, a test pipe sample is fixed on one surface, far away from the strip-shaped vertical plates 122, of the test piece fixing plate 123;
the two ends of the sliding rod penetrate through the two strip-shaped guide holes 120 in a one-to-one correspondence manner, the sliding rod can move in the two strip-shaped guide holes 120, meanwhile, the two ends of the sliding rod are both provided with threads, the two ends of the sliding rod are both in threaded connection with first adjusting nuts 125, and meanwhile, the outer diameter of each first adjusting nut 125 is larger than the hole width of each strip-shaped guide hole 120;
the sliding block 126 is fixed on the sliding rod, and the sliding block 126 is located between the two strip-shaped vertical plates 122 and is slidably connected in the strip-shaped guide groove 130.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the slide rod moves in the strip-shaped guide hole 120, so that the included angle between the strip-shaped vertical plate 122 and the test piece fixing plate 123 can be adjusted, the slide rod can be locked at a required position through the matching connection of the first adjusting nut 125 and the slide rod, and the included angle between the strip-shaped vertical plate 122 and the test piece fixing plate 123 can be locked.
In order to further optimize the above technical solution, a first mounting groove 8 is formed on one surface of the test piece fixing plate 123 away from the strip-shaped vertical plate 122, and the test tube sample is fixed (may be bonded, but is not limited to being bonded) in the first mounting groove 8.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the stability of the test tube sample mounted on the test piece fixing plate 123 is improved.
In order to further optimize the technical scheme, a first magnet slot 102 is formed in one surface of the test piece fixing plate 123, which is close to the bar-shaped vertical plate 122, and a magnet is embedded and fixed in the first magnet slot 102.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: since the test tube sample is generally a metal tube, the test tube sample is adsorbed on the test piece fixing plate 123 by the magnet, so that the test tube sample is convenient to mount, dismount and replace.
In order to further optimize the technical scheme, the test pipe sample is adhered to one surface of the test piece fixing plate 123 far away from the strip-shaped vertical plate 122.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: can improve the stability of test tube sample fixation on test piece fixed plate 123 to the in-process that prevents fluid medium scouring test tube sample leads to test tube sample to rock, consequently can reduce the utility model discloses an experimental error to easy operation.
In order to further optimize the technical scheme, the test piece fixing clamp is a horizontal test piece fixing clamp 13, the test pipeline section 11 is a straight pipe section, two ends of the clamping groove 110 correspondingly extend to two ports of the straight pipe section one to one, two ports, close to the straight pipe section, of the clamping groove 110 are connected with one clamp fixing device 5 in a sliding and clamping mode, one end of each clamp fixing device 5 abuts against the horizontal test piece fixing clamp 13, and the other end of each clamp fixing device abuts against the adjacent flange plate 101.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: simple structure, the operation of being convenient for, and can carry out the fluid medium erosion corrosion test of unchangeable angle.
In order to further optimize the technical scheme, a plurality of horizontal test piece fixing clamps 13 are simultaneously clamped in the clamping groove 110, the plurality of horizontal test piece fixing clamps 13 are arranged in the clamping groove 110 at intervals, and meanwhile, a clamp fixing device 5 is abutted between every two adjacent horizontal test piece fixing clamps 13.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: a plurality of test pipe fitting samples can be tested simultaneously in one test, and the authenticity and the accuracy of the test are improved.
In order to further optimize the above technical solution, the horizontal test piece fixing clamp 13 is clamped in the clamping groove 110, and the test tube sample is fixed (but not limited to being bonded) on a surface of the horizontal test piece fixing clamp 13 away from the clamping groove 110.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the stability of test tube sample installation is improved.
In order to further optimize the above technical solution, a second mounting groove 6 is opened on one side of the flat test piece fixing clamp 13 away from the clamping groove 110, and the test tube sample is fixed (bonded but not limited to be bonded) in the second mounting groove 6.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: further improve the stability of experimental pipe fitting sample installation.
In order to further optimize the technical scheme, a second magnet groove 103 is formed in one surface, close to the clamping groove 110, of the horizontal test piece fixing clamp 13, and a magnet is embedded and fixed in the second magnet groove 103.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the test tube sample is convenient to disassemble, assemble and replace.
In order to further optimize the above technical solution, the fixture fixing device 5 is length-adjustable.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: through the length of adjusting fixture fixing device 5 to can guarantee the length of fixture fixing device 5 and angle test piece mounting fixture 12 and the length that equals draw-in groove 110, consequently the utility model discloses can select to set up draw-in groove 110 as required and get length, and can select the length of angle test piece mounting fixture 12 according to the length of experimental pipe fitting sample.
In order to further optimize the above technical solution, the jig fixing device 5 includes: a first cover plate 51, a second cover plate 52, a first adjusting rod 53, a second adjusting rod 54, a third adjusting rod 55, an adjusting bolt 56 and a second adjusting nut 57; the first cover plate 51 and the second cover plate 52 are arranged in parallel at intervals, the first cover plate 51 abuts against the test piece fixing clamp 12, and the second cover plate 52 abuts against the adjacent flange plate 101; the first adjusting rod 53 is vertically fixed on the first cover plate 51, the second adjusting rod 54 and the third adjusting rod 55 are vertically fixed on the second cover plate 52, the second adjusting rod 54 and the third adjusting rod 55 are arranged in parallel at intervals, meanwhile, the first adjusting rod 53, the second adjusting rod 54 and the third adjusting rod 55 are positioned between the first cover plate 51 and the second cover plate 52, the same position of the second adjusting rod 54 and the third adjusting rod 55 is provided with positioning through holes which are arranged oppositely, the first adjusting rod 53 is provided with a plurality of adjusting through holes along the length direction thereof, the first adjusting rod 53 can slide between the second adjusting rod 54 and the third adjusting rod 55, so that one of the adjusting through holes corresponds to the positioning through hole, the adjusting bolt 56 is inserted into the positioning through hole and the adjusting through hole corresponding to the positioning through hole, and the adjusting bolt 56 is in threaded connection with the second adjusting nut 57.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: first regulation pole 53 can be adjusted at the second and slide between pole 54 and the third regulation pole 55 to make one of them adjusting hole corresponding with positioning hole, adjusting bolt 56 pegs graft in positioning hole and the adjusting hole that corresponds with positioning hole, and connect second adjusting nut 57 through the cooperation, then can adjust the length of anchor clamps fixing device 5, and the utility model discloses a first apron 51 and second apron 52 can correspond the effect of realizing butt test piece mounting fixture 12 and flange 101, and first apron 51 and second apron 52 have great butt area, consequently can further improve the stability of test piece mounting fixture 12 in draw-in groove 110, thereby reduce experimental error.
In order to further optimize the solution described above, the fluid medium storage device 3 comprises:
a liquid storage tank 31, wherein the liquid storage tank 31 is communicated with the upstream pipeline 2 through a first pipeline 310, the first pipeline 310 is respectively communicated with a pump 311, a first valve 312 and a liquid flowmeter 313, and liquid or a solid-liquid mixture is loaded in the liquid storage tank 31;
the air compressor 32 is connected to the upstream pipeline 2 through a second pipeline 320, and an air storage tank 321, a cold dryer 322, a second valve 323 and a gas flow meter 324 are respectively connected to the second pipeline 320, and the air storage tank 321 is close to the liquid storage tank 31.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the utility model can carry out liquid erosion corrosion simulation test, solid-liquid mixture erosion corrosion simulation test, gas erosion corrosion simulation test, solid, liquid and gas mixture erosion corrosion simulation test and liquid and gas mixture erosion corrosion simulation test;
in addition, the present invention uses the pump 311 to pump the fluid medium in the liquid storage tank 31 to the first pipeline 310 and the upstream pipeline 2, controls the flow rate and the switch of the fluid medium in the first pipeline 310 through the first valve 312, and measures the flow rate of the fluid medium in the first pipeline 310 through the liquid flow meter 313;
the utility model discloses an air compressor 32 produces gaseous fluid medium, and gaseous fluid medium stores earlier in gas holder 321, can play the effect of steady voltage, and cold dry machine 322 guarantees gaseous fluid medium's aridity, and gaseous fluid medium's velocity of flow and switch in second valve 323 control second pipeline 320, and gas flowmeter 324 measures gaseous fluid medium's flow in second pipeline 320.
In order to further optimize the above technical solution, the first pipeline 310 is connected with the flow rate control circuit 9, and a plurality of first valves 312 are installed on the first pipeline 310 and the flow rate control circuit 9, so that the flow rate control effect of the fluid medium can be improved through the flow rate control circuit 9 and the plurality of first valves 312.
In order to further optimize the solution described above, the other port of the downstream line 4 is connected to the reservoir 31.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the experimental device adopts a circulating flow pipeline to simulate the medium flow in the pipe, thereby avoiding resource waste.
In order to further optimize the above solution, the inner diameters of the upstream line 2 and the first line 310 are the same, and the length of the line between the pump 311 and the laboratory 1 is 150 times the inner diameter of the first line 310.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: a steady flow section with enough length is designed between the pump 311 and the experiment chamber 1, so that the mixed state tends to be stable before the mixed flowing medium enters the experiment tube section, and the influence of flow field disturbance in the experiment chamber 1 caused by factors such as the pump 311 is eliminated.
Due to the effect of the viscosity of the fluid, the flow velocity of the fluid flowing into the pipeline has a gradual process from the position close to the wall surface of the pipeline to the position at the center of the pipeline, and the fully developed length of the turbulent flow in the test depends on the flow state of the fluid and the Reynolds number.
Laminar flow:
when in turbulent flow:
under the critical condition of laminar-to-turbulent transition, that is, at a reynolds number Re of 2300, the length of the straight pipe section of the test platform in which turbulent flow sufficiently develops is the longest, that is, 138D, so the length of the straight pipe section of the test platform in which turbulent flow sufficiently develops is 150D, for example: the pipeline is a PVC pipeline with the inner diameter of 100mm, so that the length of the straight pipe section with fully developed turbulent flow exceeds 14 m.
In order to further optimize the above technical solution, a heater 314 is placed in the reservoir 31.
The utility model adopts the above technical scheme, the beneficial effect that can realize does: the liquid in the reservoir 31 is heated by the heater 314 so that the temperature of the fluid medium in the reservoir 31 can be controlled.
In order to further optimize the above technical solution, a plurality of slots 110 are provided along the circumferential direction of the inner cavity wall of the test pipe segment 11 at regular intervals.
Example 1:
the utility model provides a simulation pipeline flows erodees corrosion test device, the simulation test theory of operation that experimental pipe fitting sample becomes the angle as follows:
a small piece of pipe is cut from a pipeline for transporting fluid media in an actual working condition to serve as a test pipe sample, the test pipe sample is fixed on a test piece fixing plate 123 of a test piece fixing clamp 12, then a bottom plate 121 of the test piece fixing clamp 12 is clamped in a clamping groove 110 formed in the inner wall of a test pipeline section 11 (the test pipeline section 11 is a bent pipe section), the length of a clamp fixing device 5 is adjusted according to the length of the clamping groove 110, and a plurality of clamp fixing devices 5 can be inserted into the clamping groove 110 according to needs so as to ensure the lengths of all the clamp fixing devices 5 in the test piece fixing clamp 12 and the clamping groove 110 and the length of the clamping groove 110, and meanwhile, a first cover plate 51 of the clamp fixing device 5 abuts against the test piece fixing clamp 12, and a second cover plate 52 abuts against an adjacent flange plate 101;
then, the inlet of the experiment chamber 1 is communicated with the upstream pipeline 2, the upstream pipeline 2 is communicated with the first pipeline 310 and the second pipeline 320 respectively, the first pipeline 310 is communicated with the liquid storage tank 31, the first pipeline 310 is communicated with the pump 311, the first valve 312 and the liquid flow meter 313 respectively, liquid or solid-liquid mixture is loaded in the liquid storage tank 31, the heater 314 is placed in the liquid storage tank 31, the second pipeline 320 is communicated with the air compressor 32, the second pipeline 320 is communicated with the air storage tank 321, the cold dryer 322, the second valve 323 and the gas flow meter 324 respectively, the air storage tank 321 is close to the liquid storage tank 31, the inner diameters of the upstream pipeline 2 and the first pipeline 310 are ensured to be the same, and the length of the pipeline between the pump 311 and the experiment chamber 1 is 150 times of the inner diameter of the first pipeline 310.
After the device is connected, a test can be carried out, namely when a liquid erosion corrosion simulation test is carried out, the first valve 312 is opened, the second valve 323 is closed, and liquid is loaded in the liquid tank 31; when a solid-liquid mixture erosion corrosion simulation test is carried out, the first valve 312 is opened, the second valve 323 is closed, and the liquid tank 31 is filled with the solid-liquid mixture; when the gas erosion corrosion simulation test is performed, the first valve 312 is closed, the second valve 323 is opened, and the air compressor 32 is operated; when a solid-liquid-gas mixture erosion corrosion simulation test is carried out, the first valve 312 is opened, the second valve 323 is opened, the solid-liquid mixture is loaded in the liquid tank 31, and the air compressor 32 works at the same time; when the liquid-gas mixture erosion corrosion simulation test is performed, the first valve 312 is opened, the second valve 323 is opened, and the liquid is loaded in the liquid tank 31 while the air compressor 32 is operated.
When the inclination angle of the test pipe sample in the test cavity 10 needs to be adjusted, the test pipeline section 11 is detached from the pipeline system, then the fixture fixing device 5 and the test piece fixing fixture 12 are sequentially detached from the clamping groove 110, the included angle between the bar-shaped vertical plate 122 and the test piece fixing plate 123 can be adjusted by moving the slide bar in the bar-shaped guide hole 120, and the slide bar is connected with the slide bar in a matching manner through the first adjusting nut 125, so that the slide bar can be locked at a required position, the included angle between the bar-shaped vertical plate 122 and the test piece fixing plate 123 can be locked, a new test pipe sample (which can not be replaced and is determined according to test requirements) identical to the original test pipe sample can be replaced, and then the test pipe sample is re-installed, so that the fluid medium erosion corrosion tests of the test pipe sample at different angles can be carried out.
Example 2: the utility model provides a simulation pipeline flows erodees corrosion test device, the simulation test theory of operation of the unchangeable angle of test pipe fitting sample as follows:
cutting a plurality of small pieces of a pipeline for transporting fluid media from an actual working condition to serve as a plurality of test pipe fitting samples, fixing the plurality of test pipe fitting samples on a plurality of horizontal test piece fixing clamps 13 in a one-to-one correspondence manner, clamping the horizontal test piece fixing clamps 13 in clamping grooves 110 formed in the inner wall of a test pipeline section 11 (the test pipeline section 11 is a straight pipe section), and adjusting the lengths of a plurality of clamp fixing devices 5 according to the length of the clamping grooves 110 so as to ensure the lengths of all clamp fixing devices 5 in the test pipe fixing clamps 12 and the clamping grooves 110 and the length of the clamping grooves 110, so that after the plurality of clamp fixing devices 5 and the horizontal test piece fixing clamps 13 are inserted into the clamping grooves 110 in sequence, a first cover plate 51 of each clamp fixing device 5 abuts against the corresponding horizontal test piece fixing clamp 13, and a second cover plate 52 abuts against the adjacent flange plate 101;
then, the inlet of the experiment chamber 1 is communicated with the upstream pipeline 2, the upstream pipeline 2 is communicated with the first pipeline 310 and the second pipeline 320 respectively, the first pipeline 310 is communicated with the liquid storage tank 31, the first pipeline 310 is communicated with the pump 311, the first valve 312 and the liquid flow meter 313 respectively, liquid or solid-liquid mixture is loaded in the liquid storage tank 31, the heater 314 is placed in the liquid storage tank 31, the second pipeline 320 is communicated with the air compressor 32, the second pipeline 320 is communicated with the air storage tank 321, the cold dryer 322, the second valve 323 and the gas flow meter 324 respectively, the air storage tank 321 is close to the liquid storage tank 31, the inner diameters of the upstream pipeline 2 and the first pipeline 310 are ensured to be the same, and the length of the pipeline between the pump 311 and the experiment chamber 1 is 150 times of the inner diameter of the first pipeline 310.
After the device is connected, a test can be carried out, namely when a liquid erosion corrosion simulation test is carried out, the first valve 312 is opened, the second valve 323 is closed, and liquid is loaded in the liquid tank 31; when a solid-liquid mixture erosion corrosion simulation test is carried out, the first valve 312 is opened, the second valve 323 is closed, and the liquid tank 31 is filled with the solid-liquid mixture; when the gas erosion corrosion simulation test is performed, the first valve 312 is closed, the second valve 323 is opened, and the air compressor 32 is operated; when a solid-liquid-gas mixture erosion corrosion simulation test is carried out, the first valve 312 is opened, the second valve 323 is opened, the solid-liquid mixture is loaded in the liquid tank 31, and the air compressor 32 works at the same time; when the liquid-gas mixture erosion corrosion simulation test is performed, the first valve 312 is opened, the second valve 323 is opened, and the liquid is loaded in the liquid tank 31 while the air compressor 32 is operated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a simulation pipeline flow erodees corrosion test device which characterized in that includes:
the experiment chamber (1), the inside of the experiment chamber (1) is provided with an experiment cavity (10), one end of the experiment chamber (1) is provided with an inlet communicated with the experiment cavity (10), and the other end of the experiment chamber is provided with an outlet communicated with the experiment cavity (10);
an upstream pipeline (2), one port of the upstream pipeline (2) is communicated with the inlet of the experiment chamber (1), the other port is communicated with a fluid medium storage device (3), and an upstream temperature sensor (21) and an upstream pressure sensor (22) are respectively installed on the upstream pipeline (2);
a downstream pipeline (4), one port of the downstream pipeline (4) is communicated with an outlet of the experiment chamber (1), the fluid medium in the fluid medium storage device (3) sequentially passes through the upstream pipeline (2), the experiment cavity (10) and the downstream pipeline (4), and a downstream temperature sensor (41) and a downstream pressure sensor (42) are respectively installed on the downstream pipeline (4);
a test tube sample mounted in the test cavity (10).
2. The test device for simulating the erosion corrosion of pipeline flow according to claim 1, wherein the test chamber (1) comprises:
the test pipeline section (11), two ports of the test pipeline section (11) are an inlet and an outlet of the test chamber (1) in a one-to-one correspondence manner, an inner cavity of the test pipeline section (11) is the test cavity (10), and two ends of the test pipeline section (11) are connected with the upstream pipeline (2) and the downstream pipeline (4) in a one-to-one correspondence manner through flanges (101);
the test piece fixing clamp is fixed on the wall of the inner cavity of the test pipeline section (11), meanwhile, the test pipe sample is fixed on the test piece fixing clamp, fluid media in the fluid medium storage device (3) sequentially pass through the upstream pipeline (2), the inner cavity of the test pipeline section (11) and the downstream pipeline (4), and the fluid media flowing through the inner cavity of the test pipeline section (11) erodes the test pipe sample.
3. The device for simulating the erosion corrosion of pipeline flow according to claim 2, a clamping groove (110) is formed in the wall of the inner cavity of the test pipeline section (11), the clamping groove (110) is strip-shaped and extends along the axial direction of the test pipeline section (11), the clamping groove (110) extends to the port of the test pipeline section (11), to form a port of the card slot (110), the specimen holding jig being slidingly snapped into the card slot (110) from the port of the card slot (110), meanwhile, the clamp groove (110) is slidably clamped with a clamp fixing device (5) through the port thereof, and the clamp fixing device (5) is close to the port of the clamping groove (110), and the two opposite ends of the clamp fixing device (5) are correspondingly abutted against the test piece fixing clamp and the flange plate (101) adjacent to the clamp fixing device (5) one by one.
4. The device for simulating the erosion corrosion of the flowing pipeline according to claim 3, wherein the test piece fixing clamp is a variable-angle test piece fixing clamp (12), the test pipeline section (11) is a bent pipe section, one end of the clamping groove (110) extends to one port of the bent pipe section, one end of the variable-angle test piece fixing clamp (12) abuts against the clamp fixing device (5), and the other end abuts against the inner wall of the bent part of the bent pipe section.
5. The simulated pipeline flow erosion corrosion test device of claim 4, wherein the variable-angle test piece fixing clamp (12) comprises:
the bottom plate (121) is clamped in the clamping groove (110), two parallel bar-shaped vertical plates (122) are fixed on one side, far away from the clamping groove (110), of the bottom plate (121) at intervals, the length direction of each bar-shaped vertical plate (122) is parallel to the length direction of the bottom plate (121), meanwhile, strip-shaped guide holes (120) are formed in the two bar-shaped vertical plates (122) along the length direction of the two bar-shaped vertical plates, and the two bar-shaped guide holes (120) are arranged oppositely;
the test piece fixing plate (123) is positioned on the two strip-shaped vertical plates (122), the test piece fixing plate (123) is hinged to the same ends of the two strip-shaped vertical plates (122), a strip-shaped guide groove (130) is formed in one surface, close to the strip-shaped vertical plates (122), of the test piece fixing plate (123) along the length direction of the test piece fixing plate, and meanwhile, a test pipe sample is fixed on one surface, far away from the strip-shaped vertical plates (122), of the test piece fixing plate (123);
the two ends of the sliding rod penetrate through the two strip-shaped guide holes (120) in a one-to-one correspondence mode, the sliding rod can move in the two strip-shaped guide holes (120), meanwhile, the two ends of the sliding rod are provided with threads, the two ends of the sliding rod are connected with first adjusting nuts (125) in a threaded mode, and meanwhile the outer diameter of each first adjusting nut (125) is larger than the hole width of each strip-shaped guide hole (120);
the sliding block (126) is fixed on the sliding rod, and meanwhile, the sliding block (126) is located between the two strip-shaped vertical plates (122) and is connected in the strip-shaped guide groove (130) in a sliding mode.
6. The device for simulating the erosion corrosion test of the pipeline flow according to claim 3, wherein the test piece fixing clamp is a horizontal test piece fixing clamp (13), the test pipeline section (11) is a straight pipe section, two ends of the clamping groove (110) correspondingly extend to two ports of the straight pipe section one to one, two ports, close to the straight pipe section, in the clamping groove (110) are slidably clamped with one clamp fixing device (5), one end of each clamp fixing device (5) abuts against the horizontal test piece fixing clamp (13), and the other end abuts against the adjacent flange (101).
7. The device for simulating the pipeline flow erosion corrosion test according to any one of claims 3-6, wherein the clamp fixing device (5) is adjustable in length.
8. The simulated pipeline flow erosion corrosion test device of claim 7, wherein the clamp fixture (5) comprises: the device comprises a first cover plate (51), a second cover plate (52), a first adjusting rod (53), a second adjusting rod (54), a third adjusting rod (55), an adjusting bolt (56) and a second adjusting nut (57); the first cover plate (51) and the second cover plate (52) are arranged in parallel at intervals, the first cover plate (51) abuts against the test piece fixing clamp, and the second cover plate (52) abuts against the adjacent flange (101); the first adjusting rod (53) is vertically fixed on the first cover plate (51), the second adjusting rod (54) and the third adjusting rod (55) are vertically fixed on the second cover plate (52), the second adjusting rod (54) and the third adjusting rod (55) are arranged in parallel at intervals, meanwhile, the first adjusting rod (53), the second adjusting rod (54) and the third adjusting rod (55) are all positioned between the first cover plate (51) and the second cover plate (52), the second adjusting rod (54) and the third adjusting rod (55) are all provided with positioning through holes which are arranged oppositely at the same position, the first adjusting rod (53) is provided with a plurality of adjusting through holes along the length direction thereof, and the first adjusting rod (53) can slide between the second adjusting rod (54) and the third adjusting rod (55), so that one of the adjusting through holes corresponds to the positioning through hole, the adjusting bolt (56) is inserted into the positioning through hole and the adjusting through hole corresponding to the positioning through hole, and meanwhile, the adjusting bolt (56) is in threaded connection with the second adjusting nut (57).
9. A simulated pipeline flow erosion corrosion test device according to claim 1, wherein said fluid medium storage means (3) comprises:
the liquid storage tank (31) is communicated with the upstream pipeline (2) through a first pipeline (310), the first pipeline (310) is respectively communicated with a pump (311), a first valve (312) and a liquid flowmeter (313), and liquid or a solid-liquid mixture is loaded in the liquid storage tank (31);
the air compressor (32) is communicated with the upstream pipeline (2) through a second pipeline (320), the second pipeline (320) is respectively communicated with an air storage tank (321), a cold dryer (322), a second valve (323) and a gas flow meter (324), and meanwhile, the air storage tank (321) is close to the liquid storage tank (31).
10. A simulated pipeline flow erosion corrosion test device according to claim 9, wherein the inner diameters of the upstream pipeline (2) and the first pipeline (310) are the same, and the length of the pipeline between the pump (311) and the test chamber (1) is not less than 140 times the inner diameter of the first pipeline (310).
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| CN202121119659.0U CN215065703U (en) | 2021-05-24 | 2021-05-24 | Pipeline flow erosion corrosion test device simulates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114659770A (en) * | 2022-03-18 | 2022-06-24 | 淄博市产品质量检验研究院 | Abrasion detection device and method for solid-liquid two-phase fluid conveying pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659770A (en) * | 2022-03-18 | 2022-06-24 | 淄博市产品质量检验研究院 | Abrasion detection device and method for solid-liquid two-phase fluid conveying pipeline |
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