CN114894631A - Remote monitoring high-pressure pipeline water pressure experiment booster unit - Google Patents
Remote monitoring high-pressure pipeline water pressure experiment booster unit Download PDFInfo
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- CN114894631A CN114894631A CN202210703827.3A CN202210703827A CN114894631A CN 114894631 A CN114894631 A CN 114894631A CN 202210703827 A CN202210703827 A CN 202210703827A CN 114894631 A CN114894631 A CN 114894631A
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- 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
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
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- G01N2203/0019—Compressive
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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Abstract
The invention discloses a remote monitoring high-pressure pipeline water pressure experiment boosting device which comprises a water pumping assembly used for pumping water test, wherein the water pumping assembly is communicated with a test pipeline, the water inlet end of the test pipeline is connected with a pressure detection system in an assembling way, and the pressure detection system is used for acquiring and transmitting water pressure parameters of the test pipeline in real time; the pipe explosion protection mechanism comprises detachable installation parts which are respectively assembled and connected to two sides of the test pipeline, and a plurality of damping shafts which are abutted against the test pipeline are arranged on the detachable installation parts; explosion-proof sheet plates are respectively assembled and connected between the front side and the rear side of the detachable mounting part; the device part design solves the technical defect that in the traditional pipeline testing process, once the pipeline explodes, the splashed fragments generated by the explosion seriously affect the life safety of detection personnel. And real-time transmission of detection pressure data is realized.
Description
Technical Field
The invention belongs to the technical field of pipeline pressure resistance tests, and particularly relates to a pressure boosting device for a remote monitoring high-pressure pipeline water pressure experiment.
Background
After the high-pressure pipeline is installed and before the high-pressure pipeline is put into use, a hydrostatic test is carried out to verify the strength of the whole pipeline system. At present, the pressure boosting rate of a high-pressure pipeline field hydrostatic test can be monitored only by observing a pressure gauge by naked eyes, which is a common mode at present, and the methods have the technical problems of low efficiency, low accuracy, serious influence on the safety of personnel and the like.
Specifically, after the high-pressure pipeline is installed, because the pipeline with a large length is provided with a plurality of welding points, once the pipeline is compressed, the welding points become the primary explosion points of the pipeline. Specifically, once the welding position has low welding tightness or the welding position has a leak point, the pipe explosion is easily caused.
Under the condition of pipe explosion, metal fragments splashed on the pipeline have larger kinetic energy and are randomly splashed, so that the life safety of detection personnel is seriously influenced. In production and life, there are many reports of disastrous safety accidents that detection personnel are injured or die due to fragments of explosion splashed by pipelines in the pipeline testing process.
However, before the pressure pipeline is used, the pressure resistance of the pressure pipeline must be tested, otherwise, greater potential safety accidents of production are easily caused, and greater and more serious life and property losses are caused.
Based on this, many public reports about pipeline pressure resistance safety tests in the prior art are disclosed, for example, the chinese patent application publication number is: CN209783629U, a pipeline safety inspection test bench is disclosed, through the operation panel in specific this scheme, the guide rail, door type support frame A, door type support frame B, pipeline lift support frame, electric block, chain drive mechanism, the pipeline supporting wheel, the guide rail is installed on the operation panel, door type support frame A, door type support frame B cover is established on the guide rail, door type support frame A, door type support frame B's top installation pipeline supporting wheel, the pipeline supporting wheel on door type support frame B top passes through chain drive mechanism and links to each other with the hand wheel, electric block installs on pipeline lift support frame top, pipeline support frame bottom is installed on the operation panel, the realization is carried out the withstand voltage test of security to the test pipeline.
However, the technical solutions disclosed in the above patents cannot solve the problem of how to prevent the detection personnel from being damaged by the exploded metal fragments in case of explosion of the test pipeline.
Meanwhile, the technical scheme disclosed by the patent has large use limitation, and in the actual operation process, the pipeline is often installed according to the construction requirement and then the pressure resistance test is carried out.
Disclosure of Invention
Based on the above background, the technical problems to be solved by the present invention are: the utility model provides a remote monitoring high-pressure pipeline hydrostatic test booster unit.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pressure boosting device for remotely monitoring a high-pressure pipeline hydraulic pressure experiment comprises a water pumping assembly for pumping water test, wherein the water pumping assembly is communicated with a test pipeline, a water inlet end of the test pipeline is connected with a pressure detection system in an assembling manner, and the pressure detection system is used for collecting and transmitting a hydraulic pressure parameter of the test pipeline in real time;
the pipe explosion protection mechanism comprises detachable installation parts which are respectively assembled and connected to two sides of the test pipeline, and a plurality of damping shafts which are abutted against the test pipeline are arranged on the detachable installation parts;
explosion-proof sheet plates are respectively assembled and connected between the front side and the rear side of the detachable mounting piece;
in the pressure measuring process, the testing pipeline is at the damaged position, the fragments splashed by explosion are separated and blocked by the explosion-proof sheet plate, and the damping shaft is abutted and rotated to form the braking force of the explosion-proof sheet plate on the testing pipeline.
Preferably, the water pumping assembly comprises a water pool and further comprises a pumping pipe, the water inlet end of the pumping pipe is located below the liquid level in the water pool, the water outlet end of the pumping pipe is communicated with a water pumping pump, the water outlet end of the water pumping pump is communicated with a water feeding pipe, the water outlet end of the water feeding pipe is communicated with an upper short pipe, and the water outlet end of the upper short pipe is communicated with the pressure detection system;
the water outlet end of the pressure detection system is communicated with a lower short pipe, and the water outlet end of the lower short pipe is communicated with a test pipeline.
Preferably, the water outlet end of the upper short pipe is connected with an upper flange in an assembling manner, and the water inlet end of the lower short pipe is connected with an adaptive lower flange in an assembling manner;
the pressure detection system is assembled and connected in a cavity between the upper flange and the lower flange;
the pressure detection system comprises a pressure transmitter, and a pressure sensor for collecting water pressure is assembled and connected on the pressure transmitter;
the pressure sensor is electrically connected with an integrating instrument; the integrating instrument is connected to the equipment terminal through wireless module communication.
Preferably, the detachable mounting parts each comprise two spaced-apart clamp parts;
the clamp piece comprises two clamp plates which are clamped between two sides of the test pipeline and are matched with each other, and the damping shaft is rotatably connected between the clamp plates on the same side;
vertical parts are integrally formed between the upper ends of the clamp plate and between the lower ends of the clamp plate, and the vertical parts are respectively assembled and connected through pin bolts.
Preferably, an elastic rubber damping sleeve is sleeved on the damping shaft.
Preferably, the explosion-proof sheet plate is provided with a concave surface part which is concavely arranged inwards, and the concave surface part faces to the test pipeline;
the hoop plates are fixedly connected to the concave parts through connecting rods respectively.
Preferably, the concave part is assembled and connected with a detonation monitoring mechanism;
the explosion-triggering monitoring mechanism comprises an explosion-triggering net fixedly connected to the end face of the concave face part;
a touch pull rope is fixedly connected to the central part of the touch explosion net, a touch pull switch is connected to the outer end of the touch pull rope, and the touch pull switch is electrically connected with a monitoring camera;
when the test pipeline explodes, the explosion fragments strike the explosion net, and the explosion net warp and the tractive of tractive touches and draws the switch, and the work of monitoring camera circular telegram is control explosion position.
Preferably, an explosion-proof net part is detachably assembled and connected between the tops of the explosion-proof sheet plates;
the explosion-proof net component is detachably assembled and connected between the bottoms of the explosion-proof sheet plates;
the explosion-proof net component is used for blocking splashed fragments.
Preferably, the explosion-proof net component comprises a net frame, and a metal explosion-proof net is fixedly connected in the net frame.
Preferably, the two ends of the explosion-proof sheet plate are respectively and fixedly connected with mounting bosses, the mounting bosses are respectively and fixedly connected with mounting bolts, the mounting bolts penetrate through the net frame, and fastening nuts are in threaded connection with the mounting bolts.
The invention has the following beneficial effects:
1. in the device structure disclosed by the invention, the damping protection structure designs such as the explosion-proof sheet plate and the explosion-proof sheet plate have the following advantages:
1.1 in case take place pressure too big, the pipeline explodes the pipe, and at this moment, the piece striking of explosion pipe hinders the rupture disk board, hinders the rupture disk board and adopts the arc design, and its concave surface has great surface tension, can resist the explosive force of certain intensity.
1.2 on the explosion-proof piece board of both sides received explosive force (the water that the blast produced has great power) striking to explosion-proof piece board, at this moment, the explosion-proof piece board of both sides is in case the atress is inhomogeneous, and adopt the arc design, under the explosive force effect, explosion-proof piece board takes place rotatoryly, rotatory in-process, damping axle-elasticity rubber damping cover is because of conflicting on the test tube, consequently, constantly form damping force, not only buffer the explosive force through this mode, reduce the explosion potential energy to minimum state rapidly, and protect explosion-proof piece board, avoid explosion-proof piece board to burst fast, can't exert the guard action.
The design of the device parts firstly solves the problem that once the pipeline explodes in the traditional pipeline testing process, splashed fragments generated by the explosion cause the life safety of detection personnel.
1.3 once the pipe is exploded, high-pressure water flow impacts the explosion-proof sheet plates, and once the explosion-proof sheet plates on the two sides are stressed unevenly, in the process of rapid rotation, the damping shaft-elastic rubber damping sleeve structure continuously forms larger damping force, so that larger explosion potential energy is rapidly reduced to the lowest state, and the protection effect is exerted.
2. The design of the explosion-proof plate is poured by the internal framework ribs, the water flow with larger pressure under the pipe explosion collides with the explosion-proof plate, and the explosion-proof plate can resist larger explosive force under the support of the internal framework ribs.
3. The contact explosion monitoring mechanism is assembled and connected on the concave surface part of the explosion-proof sheet plate to realize the triggering monitoring of explosion, and particularly adopts an explosion-proof net; the central part fixedly connected with of touching and exploding the net touches the stay cord, touches the outer end of stay cord and is connected with and touches the switch, touches and draws switch electric connection and has the surveillance camera head. The monitoring picture of the pipe explosion position can be timely acquired once the pipe explosion occurs, emergency measures are timely taken, and intelligent and safe pipeline testing is realized.
4. The design of the pressure detection system specifically adopts a pressure transmitter, and the pressure transmitter is assembled and connected with a pressure sensor for collecting water pressure; the electric connection is provided with an integrating instrument; the integrating instrument is connected to the equipment terminal through wireless module communication. The conversion between pressure and electric signals is realized, and the pressure signals are converted into electric signals. The electric signal is converted into a pressure parameter under the calculation of the integrating instrument, and is wirelessly transmitted to equipment terminals such as computers, mobile phones and the like in real time through the wireless module, so that monitoring personnel can conveniently monitor and detect the change condition of the pressure in the pipeline in the background in real time.
The design realizes that the change condition of the pressure in the pipeline is continuously monitored in the process of detecting the gradient of the pipeline pressure, and once the pipeline pressure is abnormal, the pipeline pressure can be controlled in real time to make emergency judgment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall working principle in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a burst pipe protection mechanism in an embodiment of the present invention;
FIG. 3 is a schematic view of a removable mount according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a test tube mounted to a removable mount according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of the explosion-triggering monitoring mechanism and the internal framework ribs in the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an operating principle of a pressure detection system according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a pressure transmitter in an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a pressure sensor in an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of the pressure transmitter electrically connected to the integrating meter according to the embodiment of the present invention;
fig. 10 is a schematic diagram of an operation structure of an integrating meter according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
As shown in fig. 1-4, the pressure boosting device for the remote monitoring of the hydraulic pressure experiment of the high-pressure pipeline comprises a water pumping assembly for water pumping test, wherein the water pumping assembly is communicated with a test pipeline 12 (the water outlet end of the test pipeline 12 is sealed by a plug 13, and a mechanical pressure gauge 14 is arranged on the plug 13). The assembly is connected with pipe explosion protection mechanism 2 on test pipeline 12, realizes at the test process through pipe explosion protection mechanism 2, in case the pipeline welding position takes place not withstand voltage explosion, and the metal fragment that the explosion splashes under pipe explosion protection mechanism 2's protection, avoids irregularly in a large number splashing, leads to measuring personnel's life safety to receive the hidden danger.
The specific structure of the pipe explosion protection mechanism 2 is as follows:
the pipe explosion protection mechanism 2 comprises detachable mounting parts 23 respectively assembled and connected on two sides of the test pipeline 12, and particularly, the detachable mounting parts 23 respectively comprise two clamp parts arranged at intervals.
The clamp member includes two clamp plates 231 which are clamped between both sides of the test pipe 12 and engaged with each other, vertical portions are integrally formed between upper ends of the clamp plates 231 and between lower ends of the clamp plates 231, and the vertical portions are assembled and connected by pin bolts 2311, respectively.
During installation, the two clamp plates 231 are aligned to the sides of the test pipe 12 and assembled using the pin bolts 2311.
The detachable installation part 23 is provided with a plurality of damping shafts 232 which abut against the test pipe 12, and specifically, the damping shafts 232 are rotatably connected between the clamp plates 231 on the same side. The size of the detachable mounting part 23 is adjusted in real time according to the thickness of the pipeline.
Meanwhile, in order to increase the friction force, an elastic rubber damping sleeve is sleeved on the damping shaft 232.
Under the effect of the damping shaft 232-elastic rubber damping sleeve, specifically, the damping shaft 232-elastic rubber damping sleeve protrudes out of the inner side surface of the clamp plate 231, so that after the test pipeline 12 is installed on the clamp plate 231, the damping shaft 232-elastic rubber damping sleeve plays a role in clamping force (abutting against the test pipeline 12), and a gap is formed between the inner side wall of the clamp plate 231 and the test pipeline 12, so that the clamp plate 231 is prevented from locking the test pipeline 12, and the explosion-proof sheet plate 21 cannot rotate to buffer the explosion force when the explosion-proof sheet plate 21 is acted by the explosion force.
Explosion-proof plates 21 are respectively assembled and connected between the front side and the rear side of the detachable mounting part 23; specifically, the explosion-proof sheet 21 has a concave portion recessed inward, and the concave portion faces the test pipe 12. The clamp plates 231 are fixedly coupled to the concave portions by the links 211, respectively.
The explosion-proof sheet plate 21 is formed by pouring polyurethane material.
In the pressure measuring process, the test pipeline 12 is damaged, fragments splashed by explosion are blocked by the explosion-proof sheet plate 21, and the damping shaft 232 is in interference rotation with the test pipeline 12 to form the braking force of the explosion-proof sheet plate 21.
Specifically, in the installation process, the detachable installation parts 23 on both sides are installed on both sides of the pipeline welding point (in actual work, the number of the whole device is flexibly designed according to the number of the welding points on the test pipeline, and the welding points are main explosion points of pipeline explosion), and at this time, the explosion-proof sheet plates 21 are separated and blocked on both sides of the welding position and have a covering surface with a certain length. The length and thickness of the explosion-proof sheet plate 21 are set according to the pressure resistance requirement of the pipeline.
Once the pressure is too high, the pipeline explodes, at the moment, fragments of the pipe explode impact the explosion-proof sheet plate 21, the explosion-proof sheet plate 21 adopts an arc design, and the concave surface of the explosion-proof sheet plate has large surface tension and can resist explosive force with certain strength.
Moreover, when the explosion-proof sheet plates 21 on the two sides are impacted on the explosion-proof sheet plates 21 by the explosive force (the water generated by the explosion tube has larger power), at this time, once the explosion-proof sheet plates 21 on the two sides are stressed unevenly, and the arc design is adopted, the explosion-proof sheet plates 21 rotate under the action of the explosive force, and in the rotating process, the damping shafts 232-the elastic rubber damping sleeves are abutted on the test pipeline 12, so that the damping force is continuously formed, the explosive force is buffered through the mode, the explosion potential energy is rapidly reduced to the lowest state, the explosion-proof sheet plates 21 are protected, and the explosion-proof sheet plates 21 are prevented from being rapidly cracked and cannot play a protection role. And, the damping shaft 232-elastic rubber damping sleeve structure forms the explosion-proof sheet plate 21 brake.
By adopting the design of the device parts, the problem that once the pipeline explodes in the traditional pipeline testing process, splashed fragments generated by the explosion cause the life safety of detection personnel is solved.
Meanwhile, in the design process, once the pipe is exploded, high-pressure water flow impacts the explosion-proof sheet plates 21, and once the explosion-proof sheet plates 21 on the two sides are stressed unevenly, in the process of rapid rotation and rotation, the damping shaft 232-elastic rubber damping sleeve structure continuously forms larger damping force, so that larger explosion potential energy is rapidly reduced to the lowest state, and the protection effect is exerted.
Example 2
As shown in fig. 1 to 5, in this embodiment, on the basis of the structure of embodiment 1, in order to improve the anti-explosion capability of the explosion-proof sheet plate 21, a framework rib 24 is provided in the explosion-proof sheet plate 21 made of polyurethane, specifically, as in the existing product made of polyurethane, the framework rib 24 is placed in a mold during the production process, and is poured to form an internal supporting structure. The framework ribs 24 comprise a plurality of arc ribs 241 matched with the radian of the explosion-proof sheet plate 21, and a plurality of penetrating rib rods 242 are fixedly connected between the arc ribs 241. Forming an arc-shaped supporting structure. The framework ribs 24 are processed by steel bars, and the radius of the steel bars is 0.1-0.3 cm.
After pouring, the water flow with larger pressure under the pipe explosion collides with the explosion-proof sheet plate 21, and the explosion-proof sheet plate 21 can resist larger explosive force under the support of the internal framework ribs 24.
Example 3
As shown in fig. 5, in this embodiment, based on the structure of embodiment 2, once a pipe explosion occurs, the situation of the pipe explosion point position is quickly known, so as to realize timely and accurate monitoring of the life safety situation of the personnel at the pipe explosion point position, and to realize timely adoption of feasible measures (the pipeline in industrial production is often very long and often passes through a secret position, and is difficult to completely grasp).
Specifically, the explosion monitoring mechanism 26 is assembled and connected to the concave part; the explosion monitoring mechanism 26 comprises an explosion net 25 fixedly connected to the end face of the concave part; the explosion-contact net 25 is made of elastic polyurethane material and is in a net shape.
A touch pull rope 263 is fixedly connected to the central part of the touch explosion net 25, a touch pull switch 261 is connected to the outer end of the touch pull rope 263, and the touch pull switch 261 is electrically connected to a monitoring camera 262. Specifically, the monitoring camera 262 is installed around the detection explosion point and connected to an external power source, and when the tact switch 261 is closed, the monitoring camera 262 operates.
After the whole pipe explosion protection mechanism 2 is installed, the pulling rope is fixed at the central part of the explosion-contacting net 25, once pipe explosion occurs, under the action of splashed water flow, the explosion-contacting net 25 is rapidly pulled and the pull-contacting switch 261 is closed (after installation, the pulling rope keeps a tensioning state, but the pull-contacting switch 261 is not pulled to be closed), and at the moment, the monitoring camera 262 works. The monitoring camera 262 preferably employs a camera having an alarm function.
The monitoring system is the same as the existing camera, and can transmit the collected monitoring pictures to the monitoring background in real time.
By adopting the design, the monitoring picture of the pipe explosion position can be timely acquired once the pipe explosion occurs, emergency measures can be timely taken, and the intelligent and safe test pipeline 12 is realized.
Example 4
As shown in fig. 5, in this embodiment, based on the structure of embodiment 3, in order to improve the explosion-proof effect, an explosion-proof net member 22 is detachably assembled and connected between the tops of the explosion-proof sheet plates 21; an explosion-proof net part 22 is detachably assembled and connected between the bottoms of the explosion-proof sheet plates 21; the explosion-proof mesh member 22 serves to shield against splashed fragments.
The explosion-proof net part 22 comprises a net frame 222, and a metal explosion-proof net 221 is fixedly connected in the net frame 222. The two ends of the explosion-proof sheet plate 21 are respectively and fixedly connected with mounting raised heads A, the mounting raised heads A are respectively and fixedly connected with mounting bolts, the mounting bolts penetrate through the net frame 222, and fastening nuts are in threaded connection with the mounting bolts.
After the pipe is exploded, under the baffle of the metal explosion-proof net 221, the metal fragments are prevented from splashing at the upper and lower positions.
Example 5
As shown in fig. 1 and fig. 6 to 8, in this embodiment, on the basis of the structure of embodiment 4, in order to realize remote monitoring of the water pressure, the water inlet end of the test pipe 12 is connected with a pressure detection system in an assembling manner, and the pressure detection system is used for acquiring and transmitting the water pressure parameter of the test pipe 12 in real time.
The water pumping assembly comprises a water pool 1 and a pumping pipe 11, wherein the water inlet end of the pumping pipe 11 is positioned below the liquid level in the water pool 1, the water outlet end of the pumping pipe is communicated with a water pumping pump 3, the water outlet end of the water pumping pump 3 is communicated with a water feeding pipe 4, the water outlet end of the water feeding pipe 4 is communicated with an upper short pipe 6 (a first valve 5 is assembled between the water feeding pipe 4 and the upper short pipe 6), and the water outlet end of the upper short pipe 6 is communicated with a pressure detection system; the water outlet end of the pressure detection system is communicated with a lower short pipe 10, and the water outlet end of the lower short pipe 10 is communicated with a test pipeline 12 (a second valve 11 is assembled between the lower short pipe 10 and the test pipeline 12).
The water outlet end of the upper short pipe is connected with an upper flange 7 in an assembling way, and the water inlet end of the lower short pipe 10 is connected with a lower flange 10 in an assembling way; specifically, a thickened flange 8 is arranged between an upper flange 7 and a lower flange 10, and a pressure detection system is assembled and connected in a cavity of the thickened flange 8.
The pressure detection system comprises a pressure transmitter 15, and in the same way as the existing method, a pressure sensor 152 for collecting water pressure is assembled and connected on the pressure transmitter 15; pressure sensor 152 installs the installation intracavity of adaptation on pressure transmitter 15, and the bottom adopts screwed joint 152 to seal, and the upper end adopts sensor gland nut 1521 location, realizes fixing a position pressure sensor 152 in pressure transmitter 15.
Specifically, a circuit board 155 is installed on the pressure transmitter 15, the pressure sensor 152 is installed on the circuit board 155, and a pin 154 on the circuit board 155 is electrically connected to the integrating instrument 16 through a wire; the integrating meter 16 is communicatively connected to a device terminal 162 via a wireless module 161.
The pressure transmitter 15 is a conventional pressure transmitter 15 disclosed in the prior art, and the interior of the pressure transmitter 15 is composed of a diffused silicon pressure sensitive chip and a signal processing circuit. When external pressure acts on a sensing element of the transmitter, the output voltage of the Wheatstone bridge on the sensing chip is firstly caused to change, and then the output voltage is amplified and converted into a standard current signal by a signal processing circuit in the transmitter to be output. The change in current signal is proportional to the applied pressure. Therefore, the conversion between the pressure and the electric signal is realized, and the pressure signal is converted into the electric signal.
The electric signal is converted into a pressure parameter by the calculation of the integrating instrument 16, and is wirelessly transmitted to the equipment terminal 162 such as a computer, a mobile phone and the like in real time through the wireless module 161, so that monitoring personnel can conveniently monitor and detect the change condition of the pressure in the pipeline in the background in real time.
By adopting the device part design, the change condition of the pressure in the pipeline is continuously monitored in the pipeline pressure gradient detection process, and once the pipeline pressure is abnormal, the pipeline pressure can be mastered in real time to make emergency judgment.
Example 6
The embodiment discloses a specific algorithm for converting the electric signal into the pressure by the integrator 16:
as shown in fig. 9-10, the totalizer 16 calculates that the pressure control limit per minute (0.07MPa/min) of the system can be met.
The integrator 16 performs a mathematical optimization technique on the signal using a least squares method. It performs curve fitting by minimizing the sum of the squares of the errors and finding the best functional match of the data.
The specific algorithm principle process is as follows:
by studying the interrelationship between two variables (x, y), a series of pairs of data (x, y) can generally be obtained 1 ,y 1 .x 2 ,y 2 ...x m ,y m ) (ii) a These data are plotted in an x-y rectangular coordinate system, and if these points are found to be near a straight line, the straight line equation can be expressed as (equation 1-1). y is i ＝a 0 +a 1 x (formula 1-1).
Wherein: a is 0 、a 1 Is any real number. To establish the linear equation, a0 and a1 are determined, and the measured value Y is measured by applying the least square method principle i And using the calculated value Y j (Y j ＝a 0 +a 1 X i ) Dispersion (Y) of (formula 1-1) i -Y j ) Sum of squares sigma (Y) i -Y j ) 2 The minimum is the "optimization criterion".
Order: phi ═ sigma (Y) i -Y j ) 2 (formula 1-2); substituting (formula 1-1) into (formula 1-2) to obtain: phi ═ sigma (Y) i -a 0 -a 1 X i ) 2 (formula 1-3);
when ∑ (Y) i -Y j ) 2 At minimum, the available function φ to a 0 、a 1 The partial derivatives are calculated so that both partial derivatives are equal to zero. Sigma 2 (a) 0 +a 1 *X i -Y i ) 0 (formula 1-4); sigma 2Xi (a) 0 +a 1 *X i -Y i ) That is, 0 (formula 1-5):
na 0 +(∑X i )a 1 ＝∑Y i (formulae 1 to 6) (. Sigma.X) i )a 0 +(∑Xi 2 )a 1 ＝∑(X i *Y i ) (formulae 1 to 7).
Two obtained about a 0 、a 1 Solving two systems of equations for unknowns yields:
a 0 ＝(∑Y i )/n-a 1 (∑X i ) N (formula 1-8);
a 1 ＝[n∑(X i Y i )-(∑X i ∑Y i )]/(n∑X i 2 -∑X i ∑X i ) (formula 1-9);
a is a 0 、a 1 When the equation (1-1) is substituted into the equation (1-1), the equation (1-1) is a linear equation with one element in our regression: a mathematical model.
In the regression process, the regression correlation may not pass through all of each regression data point (x) 1 ,y 1 .x 2 ,y 2 ...x m ,y m ) In order to judge whether the correlation is good or not, the correlation coefficient R, the statistic F and the residual standard deviation S can be used for judging; the closer "R" approaches 1, the better; the larger the absolute value of "F" is, the better; the closer "S" is to 0, the better.
R＝[∑X i Y i -m(∑X i /m)(∑Y i /m)]/SQR{[∑X i 2 -m(∑X i /m) 2 ][∑Y i 2 -m(∑Y i /m) 2 ]And (formulas 1 to 10).
In (formulae 1 to 10), m is the sample volume, i.e., the number of experiments; xi, Yi are the values of any set of experimental data X, Y, respectively.
The integrator 16 adopts reliable power-on reset and power-off data protection functions to ensure that data is not lost after power failure. The device can collect pulses and current signals, output 4-20Ma current signals, support RS485 remote communication and print RS232C serial ports. The built-in real-time clock can independently run for more than 6 months after power failure, and time synchronization is guaranteed.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. A pressure boosting device for remotely monitoring a water pressure experiment of a high-pressure pipeline comprises a water pumping assembly for water pumping test, wherein the water pumping assembly is communicated with a test pipeline;
the pipe explosion protection mechanism comprises detachable installation parts which are respectively assembled and connected to two sides of the test pipeline, and a plurality of damping shafts which are abutted against the test pipeline are arranged on the detachable installation parts;
explosion-proof sheet plates are respectively assembled and connected between the front side and the rear side of the detachable mounting piece;
in the pressure measuring process, the testing pipeline is at the damaged position, the fragments splashed by explosion are separated and blocked by the explosion-proof sheet plate, and the damping shaft is abutted and rotated to form the braking force of the explosion-proof sheet plate on the testing pipeline.
2. The device for remotely monitoring the water pressure experiment boosting device of the high-pressure pipeline according to claim 1, wherein the water pumping assembly comprises a water pool, the water pumping assembly further comprises a pumping pipe, the water inlet end of the pumping pipe is positioned below the liquid level in the water pool, the water outlet end of the pumping pipe is communicated with a water pumping pump, the water outlet end of the water pumping pump is communicated with a water feeding pipe, the water outlet end of the water feeding pipe is communicated with an upper short pipe, and the water outlet end of the upper short pipe is communicated with a pressure detection system;
the water outlet end of the pressure detection system is communicated with a lower short pipe, and the water outlet end of the lower short pipe is communicated with a test pipeline.
3. The device for remotely monitoring the hydraulic pressure experiment boosting device of the high-pressure pipeline according to claim 2, wherein the water outlet end of the upper short pipe is assembled and connected with an upper flange, and the water inlet end of the lower short pipe is assembled and connected with an adaptive lower flange;
the pressure detection system is assembled and connected in a cavity between the upper flange and the lower flange;
the pressure detection system comprises a pressure transmitter, and a pressure sensor for collecting a water pressure value is assembled and connected to the pressure transmitter;
the pressure sensor is electrically connected with an integrating instrument; and the integrating instrument is in communication connection with an equipment terminal through a wireless module.
4. The device for remotely monitoring the hydraulic pressure experiment boosting device of the high-pressure pipeline according to claim 1, wherein the detachable mounting pieces each comprise two clamping hoop pieces which are arranged at intervals;
the clamp piece comprises two clamp plates which are clamped between two sides of the test pipeline and are matched with each other, and the damping shaft is rotatably connected between the clamp plates on the same side;
vertical parts are integrally formed between the upper ends of the clamp plate and between the lower ends of the clamp plate, and the vertical parts are respectively assembled and connected through pin bolts.
5. The remote monitoring high-pressure pipeline hydraulic pressure experiment boosting device according to claim 4, wherein an elastic rubber damping sleeve is sleeved on the damping shaft.
6. The device for remotely monitoring the hydraulic pressure experiment boosting device of the high-pressure pipeline according to claim 4, wherein the explosion-proof sheet plate is provided with a concave surface part which is concavely arranged inwards, and the concave surface part faces to the test pipeline;
the hoop plates are fixedly connected to the concave parts through connecting rods respectively.
7. The device for remotely monitoring the hydraulic pressure experiment of the high-pressure pipeline according to claim 6, wherein an explosion-triggering monitoring mechanism is assembled and connected on the concave part;
the explosion-triggering monitoring mechanism comprises an explosion-triggering net fixedly connected to the end face of the concave face part;
a touch pull rope is fixedly connected to the central part of the touch explosion net, a touch pull switch is connected to the outer end of the touch pull rope, and the touch pull switch is electrically connected with a monitoring camera;
when the test pipeline explodes, the explosion fragments strike the explosion net, and the explosion net warp and the tractive of tractive touches and draws the switch, and the work of monitoring camera circular telegram is control explosion position.
8. The remote monitoring high-pressure pipeline hydraulic pressure experiment boosting device according to claim 1, wherein an explosion-proof net component is detachably assembled and connected between the tops of the explosion-proof sheet plates;
an explosion-proof net component is detachably assembled and connected between the bottoms of the explosion-proof sheet plates;
the explosion-proof net component is used for blocking splashed fragments.
9. The remote monitoring high-pressure pipeline hydraulic pressure experiment boosting device according to claim 8, wherein the explosion-proof net component comprises a net frame, and a metal explosion-proof net is fixedly connected in the net frame.
10. The remote monitoring high-pressure pipeline hydraulic pressure experiment boosting device according to claim 9, wherein mounting bosses are fixedly connected to both ends of the explosion-proof sheet plate respectively, mounting bolts are fixedly connected to the mounting bosses respectively, the mounting bolts penetrate through the net frame, and fastening nuts are in threaded connection with the mounting bolts.
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