CN104020049A - Pressure testing device and method for cleaning pipeline - Google Patents
Pressure testing device and method for cleaning pipeline Download PDFInfo
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- CN104020049A CN104020049A CN201410253846.6A CN201410253846A CN104020049A CN 104020049 A CN104020049 A CN 104020049A CN 201410253846 A CN201410253846 A CN 201410253846A CN 104020049 A CN104020049 A CN 104020049A
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Abstract
The invention discloses a pressure testing device and method for cleaning a pipeline, for solving the problems of high workload, low construction efficiency and potential safety hazards caused by repeated welding of the pipeline in the pipeline cleaning and pressure testing work. The pressure testing device comprises two pressure testing heads, wherein the two pressure testing heads are respectively connected to the two ends of the pipeline; each pressure testing head comprises a drum body; one end of the drum body is used for connection with the pipeline, and the other end of the drum body is provided with a matched blind plate; the drum body is internally provided with an anti-collision air bag which is close to the blind plate; the upper part of the drum body is provided with an opening for entering and exiting of compressed and air, and the lower part of the drum body is provided with a sewage outlet; and a pipe cleaner is arranged in the drum body in a matching manner. The pressure testing device disclosed by the invention is arranged on the pipeline, then the procedures of cleaning the pipeline, measuring the diameter and testing the pressure and the like can be finished, the workload is reduced and the safety performance is improved simultaneously.
Description
Technical field
The invention belongs to oil and gas pipeline field, be specifically related to a kind of pipeline cleaning pressure testing device and method, for oil and gas pipeline being carried out to pigging, pressure testing operation.
Background technology
Oil and gas pipeline, after pipeline welding completes, need to carry out pigging (remove pipeline in residue), calibrates, pressure testing, the operation such as dry, detects pipeline whether meet technological requirement with this.
In the pipeline construction pressure testing stage, pigging operation is carried out at the two ends that first pig traps are welded on to pipeline section, after completing, the pig traps cutting at two ends is removed; By in pressure text head and pipeline welding, carry out water filling pressure testing again, sweep after water, then cut off and remove; By in pig traps welded and installed, carry out the operation such as pipeline drying, note nitrogen again.Particularly for Large Diameter Pipeline (for example DN800-DN1000) or the larger pipe engineering of Large Diameter Pipeline carry out pipeline cleaning, calibrate, when pressure testing, drying process, so Rewelding and cutting, not only bringing very hard work amount to scene, there is serious potential safety hazard with welding in the cutting repeatedly of pipeline simultaneously.
Rabbit belongs to prior art products, the patent of invention that is 201010700478.2 as application number discloses a kind of self-rotation oil and gas pipeline rabbit, comprise cylindrical shell, being located at the anti-of barrel front end rams, also comprise front leather cup and the rear leather cup of being located at respectively cylindrical shell front and back ends, front leather cup is being connected at least three bracing or strutting arrangements and at least three support wheels with rear leather cup by the shaft collar of individual word, support wheel is connected on bracing or strutting arrangement and matches with it, and the axis of support wheel and the axis of natural gas line tilt.
Application number is that 201210390139.8 patent of invention discloses a kind of reducing pipe cleaning device, comprise main casing, flange, leather cup, electronics location transmitter, the forward and backward two-end part of main casing is fixedly connected with respectively a leather cup, is provided with the diameter changing device distributing along even circumferential on each leather cup inwall.
Application number is that 201120423531.3 utility model patent discloses a kind of pipe cleaner for long distance pipeline, comprise central shaft, the straight plate of pigging, the straight sleeve-board of pigging is on central shaft, after the straight plate of pigging, arrange and tie up straight plate, tying up straight plate is made up of resilient material, tie up the outer bending of straight plate and tie up with binding piece, binding piece is through tying up straight plate top.
Application number is that 201210612501.1 patent of invention discloses a kind of pipeline pressure test head unit, comprise pressure text head body, pressure text head body in a tubular form, pressure text head body one end connects ellipse head, pressure text head body is connected end socket and strengthens version with ellipse head, be connected and installed with suspension hook, thermometer wrap, wellhead collar clamp valve and needle valve on pressure text head body, on a needle valve, tensimeter is installed, pressure text head body bottom is connected and installed with water discharging valve, passes through baffle plate support and connection baffle plate in ellipse head.
Application number be 200910136351.4 disclosure of the invention a kind of pipeline pressure test method and device, it is the O-ring seal of placing a cylindrical and have annular groove at pipe joint weld, the O-ring seal tensioner ring inner support O-ring seal splicing with point tensioner ring of inlaying rim of the mouth, insert the opening part of two points of tensioner ring splicings with a variable diameter wedge, locate with screw, then, hammer beating variable diameter wedge into shape with double direction impulse, wedging tensioner ring inner support O-ring seal, open drain tap, start water-filling, after draining gas, close drain tap, continue water-filling pressurization, reach after authorised pressure value, close inlet valve, it is that pressure measurement is qualified that the confining pressure time reaches predetermined value, detect the bearing capacity at pipe joint place, after pressure testing detects, remove pressure testing device.
Application number is that the utility model patent of 200920108825.X discloses a kind of pipeline pressure testing device, comprises the first collecting unit, the second collecting unit, the first computing unit, the second computing unit, the first judging unit and the second processing unit; The first collecting unit output connects the input of the first computing unit, the output of the first computing unit connects an input of the second computing unit, the output of the second collecting unit simultaneously also connects another input of the second computing unit, and the second computing unit output is connected in series the first judging unit and the first processing unit successively.
Existing pipeline cleaner and pressure testing device are all independent uses separately, cause the cutting of pipeline Rewelding, cause that work on the spot amount is large, operating efficiency is low, and weld exists potential safety hazard simultaneously.
The patent of invention that application number is 200810150012.7 simultaneously discloses a kind of long conveying pipeline construction method that simultaneously carries out pigging, pressure testing program, the method utilizes two cover different devices respectively as transmitting terminal and receiving end, and pigging operation and pressure testing water filling operation are incorporated in an operation and are completed, such operation merges, and do not meet the requirement of relevant pipeline construction pressure test technology code, calibrate exactly operation because missed an important step, and can not in pigging and pressure testing operation simultaneously, calibrate operation; Because calibrate the qualified pressure testing of ability afterwards operation.After pipeline welding completes, first carry out pigging (knowing the residue in pipeline), then calibrate (check caliber deformation), in process, find that there is defective must rectification, qualified rear just can carry out water filling pressure testing and follow-up work if calibrate.On the other hand, the transmitting terminal of this invention and receiving terminal must be decided in advance, can not reverse sending and receiving, when running into need to be using place, water source simultaneously as water filling end and discharge ends time (be the on-the-spot other end do not possess drainage condition time), scene must be injected water pressure testing from water filling end, water must be discharged from water filling end, but this invention just can not be suitable for.In addition, when this invention, carry out pigging and pressure testing, in the time that pigging operation can not be satisfactory, can affect the pressure testing operation of simultaneously carrying out.
Summary of the invention
The present invention is in order to solve in existing pipeline cleaning, work pressure test, pipeline Rewelding cutting and the workload brought is large, operating efficiency is low, has the problem of potential safety hazard; And provide a kind of pipeline cleaning pressure testing device and method, when each operations such as ensureing pigging, pressure testing meets pipeline construction pressure test technology code, pipeline cleaning pressure testing device is welded on pipeline, realizes pigging, pressure testing operation, can also calibrate, be dried, note the operations such as nitrogen; Reduce the number of times of pipeline welding cutting, thereby reduced field personnel's workload, improved operating efficiency, reduced the potential safety hazard of pipeline because repeatedly cutting, welding.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of pipeline cleaning pressure text head, is characterized in that, comprises cylindrical shell, and one end of cylindrical shell is for being connected with pipeline, and the cylindrical shell other end is equipped with blind plate, in cylindrical shell, is equipped with anti-collision air bag near blind plate place, is equipped with rabbit in cylindrical shell; The top of cylindrical shell offers the opening of pressurized air and water turnover, and the bottom of cylindrical shell offers sewage draining exit.
A kind of pipeline cleaning pressure testing device, it is characterized in that, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline, and described pressure text head comprises cylindrical shell, and one end of cylindrical shell is for being connected with pipeline, the other end of cylindrical shell is equipped with blind plate, is equipped with anti-collision air bag near blind plate place in cylindrical shell, the top of cylindrical shell offers the opening of pressurized air and water turnover, cylindrical shell offer sewage draining exit; The cylindrical shell of pressure text head is equipped with rabbit.
In the cylindrical shell of the pressure text head in two pressure text heads, be equipped with the first rabbit and the second rabbit, the top of cylindrical shell offers the first import, the second import, the first outlet and the second outlet; The first import is on the cylindrical shell between blind plate and the first rabbit, and the first outlet is on the cylindrical shell between the first import and the first rabbit; The second import is on the cylindrical shell between the first rabbit and the second rabbit, and the second outlet is on the cylindrical shell between the second import and the second rabbit; The position that opening and the sewage draining exit of the pressurized air of offering on the cylindrical shell of two pressure text heads and water turnover are offered is identical.
On described cylindrical shell, be also provided with triple feed inlet, triple feed inlet is positioned on the cylindrical shell after the second rabbit.
The internal diameter that the cylindrical shell end that is equipped with blind plate is made as undergauge structure and cylindrical shell diminishes gradually until identical with the internal diameter of pipeline, and the first import is opened in undergauge structure place.
On described cylindrical shell, be equipped with thermometer mouth.
A kind of pipeline cleaning pressure-measuring method, is characterized in that, comprise the step that pressure text head is installed, the step of pigging operation, calibrates the step of operation and the step of pressure testing operation.One of improvement of the present invention is exactly pressure text head to be welded on pipeline, carry out pigging, calibrate and pressure testing operation, after completing, pressure text head is being cut down.Whole pigging, calibrate, pressure testing operation only need to weld once with cutting once.
Pressure testing job step is divided into two kinds of situations according to execution conditions, the first situation be water filling and draining respectively pipe ends (comprise 1, pipeline one end possesses water filling condition, the other end possesses drainage condition; 2, pipe ends all possesses water filling and drainage condition), the second situation is that one end of pipeline possesses water filling condition and drainage condition, and the other end does not possess water filling and drainage condition.
I water filling and draining be the pressure testing operation in the time of pipe ends situation respectively, carries out as follows;
A, in the pressure text head of pipeline one end, put into two rabbits as water filling end (possessing water filling condition), in the pressure text head of the pipeline other end, put into anti-collision air bag as exhaust end, also promote a wherein rabbit from the water filling of water filling end and proceed in the pressure text head of the other end, water filling is caught up with gas until the interior tested setting-out of pipeline is full of;
B, start test pump from the water filling of water filling end boost, pressure testing;
After c, pressure testing, promote another rabbit from injecting compressed air in the pressure text head of water filling end and move ahead, water is caught up with in gas injection, until rabbit arrives to the pressure text head of the pipeline other end, the compressed air of pressure testing water in pipeline is replaced;
II water filling and draining be the pressure testing operation during with the situation of one end at pipeline, carries out as follows;
A, in the pressure text head that possesses water filling and drainage condition, pack successively rabbit and anti-collision air bag into as water filling end, in the pressure text head of the pipeline other end, pack successively rabbit and anti-collision air bag into as exhaust end, promote rabbit from the water filling of water filling end and proceed in the pressure text head of the pipeline other end, water filling is caught up with gas until the interior tested setting-out of pipeline is full of;
B, start test pump from the water filling of water filling end boost, pressure testing;
C, promote from exhaust end injecting compressed air pressure text head that two rabbits proceed to water filling end in, the compressed air of pressure testing water in pipeline is replaced.
After pressure testing operation, also carry out drying operation and the operation of note nitrogen.
Drying operation is for put into foam pig water suction pigging in pressure testing, and passes into dry air or add hot-air and dehumidify.
Pipeline cleaning pressure testing device of the present invention and method, be arranged on two identical pressure text heads the two ends of pressure testing pipeline exactly, replaces the device of existing rabbit dispensing device, rabbit receiving trap and three kinds of different structures of pressure testing device, it is advantageous that:
One, reduced the kind of inking device, constructability management.
Two, ensureing that pigging pressure testing operation meets under the prerequisite of pipeline construction pressure test technology code, pressure text head and pipeline only need weld once, abandon in existing pipeline cleaning pressure testing operation, the cutting repeatedly that being repeatedly used alternatingly of pressure text head and pig traps brought and the loaded down with trivial details operation of welding, in alleviating labor strength, improving construction environment, solve pipeline and repeatedly cut and weld the potential safety hazard of bringing.
Three, realized pipeline cleaning, calibrated, the continuity of the operations such as pressure testing, dry and note nitrogen, improved work efficiency, shorten the construction period.
Four, because the pressure text head structure of pipe ends is identical, can choose at random and exchange carrying out rabbit send and receive, water filling and draining, site operation is more flexible.
Five, this method can also be using certain one end of pipeline as water filling end, also as discharge ends.After water filling pressure testing is complete, and the other end is not while possessing drainage condition, pressure testing water can also be returned to water filling end to discharge, and the present invention is suitable for and more can adapts to field condition.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention, comprises two pressure text heads that are arranged on pipe ends,
Fig. 2 is the schematic diagram of one embodiment of the invention while carrying out pigging operation;
Fig. 3 is that one embodiment of the invention is worked as water filling and draining respectively in the time of pipe ends, the schematic diagram while preparing water filling pressure testing operation;
Fig. 4 is that one embodiment of the invention is worked as water filling and draining respectively in the time of pipe ends, the schematic diagram after pressure testing completes when preparation draining;
Fig. 5 is that one embodiment of the invention is worked as water filling and the draining pressure testing operation during with one end at pipeline; Schematic diagram while preparing water filling pressure testing operation;
Fig. 6 is that one embodiment of the invention is worked as water filling and the draining pressure testing operation during with one end at pipeline; Schematic diagram after pressure testing completes when preparation draining;
Fig. 7 is that one embodiment of the invention is worked as water filling and the draining pressure testing operation during with one end at pipeline; Schematic diagram after pressure testing completes when draining;
Mark in figure: 1A, 1B are blind plate, and 2A, 2B are Exchanger with Inclined Taper Shell, and 3A, 3B are the first import, 4A, 4B are tensimeter, and 5A, 5B are the first outlet, and 6 is the first rabbit, 7A, 7B are cylindrical shell, and 8A, 8B are the second import, and 9A, 9B are the second outlet, 10 is the second rabbit, and 11A, 11B are triple feed inlet, and 12A, 12B are thermometer socket, 13A, 13B are sewage draining exit, 14A, 14B are saddle, and 15A, 15B are anti-collision air bag, and 16 is pipeline.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only the present invention's part embodiment, is not whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiment used that obtain under creative work prerequisite, belongs to protection scope of the present invention.
Pipeline cleaning pressure text head provided by the invention, comprises cylindrical shell, and one end of cylindrical shell is for being connected with pipeline, and the cylindrical shell other end is equipped with blind plate, in cylindrical shell, is equipped with anti-collision air bag near blind plate place, is equipped with rabbit in cylindrical shell; The top of cylindrical shell offers the opening of pressurized air and water turnover, and the bottom of cylindrical shell offers sewage draining exit.
Rabbit is for clearing up, sweep water, pressure testing, the work such as dry to pipeline.And in carrying out different work, arrange different devices, for example, in carrying out pigging operation, in cylindrical shell, arrange rabbit, in calibrating operation, arrange diameter measurer, in carrying out pressure testing, arrange rabbit.The device that need to arrange when pipeline is carried out to each operation, those skilled in the art can understand and understand, and does not repeat them here.And rabbit, diameter measurer all belong to prior art products.
Pipeline cleaning pressure testing device provided by the invention, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline, described pressure text head comprises cylindrical shell 7A, 7B, one end of cylindrical shell is for being connected with pipeline 16, and the other end of cylindrical shell is equipped with blind plate 1A, 1B, in cylindrical shell, is equipped with anti-collision air bag 15A, 15B near blind plate place, the top of cylindrical shell offers the opening of pressurized air and water turnover, and the bottom of cylindrical shell offers sewage draining exit 13A, 13B; Cylindrical shell is equipped with rabbit 6,10.
Blind plate selects excellent fast opening blind, is convenient to according to different operation needs, changes different accessories (as different types of rabbit, calibre gauge, spherical pig, foam ball etc.) in cylinder; Selecting according to different operation (pigging, pressure testing, dry etc.) of rabbit 6,10 numbers and type is configured.These accessories all belong to prior art products, and those skilled in the art also knows according to different operations and selects different accessories, does not repeat them here.
In the cylindrical shell of the pressure text head in two pressure text heads, be equipped with the first rabbit 6 and the second rabbit 10, the top of cylindrical shell offers the first import 3A, 3B, the second import 8A, 8B, the first outlet 5A, 5B and the second outlet 9A, 9B; The first import 3A is on the cylindrical shell between blind plate 1A and the first rabbit 6, and the first outlet 5A is on the cylindrical shell between the first import 3A and the first rabbit 6; The second import 8A is on the cylindrical shell between the first rabbit 6 and the second rabbit 10, and the second outlet 9A is on the cylindrical shell between the second import 8A and the second rabbit 10.The position that opening and the sewage draining exit of the pressurized air of offering on the cylindrical shell of two pressure text heads and water turnover are offered is identical.
On described cylindrical shell, be also provided with triple feed inlet, triple feed inlet is positioned on the cylindrical shell after the second rabbit.The object that triple feed inlet is set is in cylindrical shell, to add water in pigging pressure testing operation, plays lubricated effect.
Pigging pressure testing device of the present invention can also respectively arrange respectively a rabbit in two pressure text heads, and import and export, the Location for Sewage of the position that wherein the first import, the second import, the first outlet, the second outlet, triple feed inlet and sewage draining exit are offered when arranging two rabbits in the pressure text head in two pressure text heads is identical.
The internal diameter that the cylindrical shell end that is equipped with blind plate is made as undergauge structure and cylindrical shell diminishes gradually until identical with the internal diameter of pipeline, the first import is opened in undergauge structure place, simultaneously in the time of an end in contact anti-collision air bag of rabbit, the other end of rabbit should be positioned at the small-caliber end of cylindrical shell, can ensure like this in the time that rabbit contacts with anti-collision air bag, the pressurized air that the first import enters or water can promote rabbit towards the direction motion away from anti-collision air bag.
Import and outlet number determine according to the rabbit number that arranges, and the setting of import and outlet will ensure that water or the pressurized air in pipeline can discharge completely, prevents air dead angle.
The present invention is provided with saddle 14A, 14B in the bottom of cylindrical shell, is convenient to installation and the placement of pressure text head.
Pipeline cleaning pressure-measuring method of the present invention, comprising:
The step of pressure text head is installed: determine that according to drainage point water filling and draining are that same one end at pipeline is (when pipeline one end neither possesses water filling condition, when not possessing drainage condition again, water filling and draining need to be carried out in same one end of pipeline so) or respectively respectively at one end; Two pressure text heads are arranged on respectively to the two ends of pipeline, import, outlet and sewage draining exit etc. on pressure text head install valve and are connected with water, air pipe.
The step of pigging operation: the step of pigging operation can according to circumstances be carried out repeatedly pigging operation, until pigging operation is qualified.
Calibrate the step of operation: pressure text head, pigging operation are installed, are calibrated operation those skilled in the art and can understand and understand, do not repeat them here;
The step of pressure testing operation;
I water filling and draining be the pressure testing operation in the time of the situation of pipe ends respectively, carries out as follows;
A puts at least two rabbits as water filling end in the pressure text head of pipeline one end, in the pressure text head of the other end, put into anti-collision air bag as exhaust end, from the water filling of water filling end, at least one rabbit is moved in the pressure text head of the pipeline other end, drain the air in pipeline;
B starts test pump from water filling end water filling pressure testing;
C drives rabbit to carry out draining from injecting compressed air in the pressure text head of water filling end, until rabbit moves in the pressure text head of the pipeline other end, drains the pressure testing water in pipeline;
II water filling and draining be the pressure testing operation during with the situation of one end at pipeline, carries out as follows;
The pressure text head that a can carry out pipeline one end water filling and draining packs rabbit and anti-collision air bag into successively as water filling end, in the pressure testing of the other end, pack successively rabbit and anti-collision air bag into as exhaust end, drive rabbit to move in the pressure text head of the pipeline other end from the water filling of water filling end, drain the air in pipeline;
B starts test pump from water filling end water filling pressure testing;
C drives rabbit to move in the pressure text head of water filling end from exhaust end injecting compressed air, drains the pressure testing water in pipeline;
Further, after pressure testing operation, also carry out drying operation and the operation of note nitrogen.Drying operation and the operation of note nitrogen, those skilled in the art can understand and understand, and does not repeat them here.
Further, described drying operation is for put into foam pig water suction pigging in pressure testing, and passes into dry air or add hot-air and dehumidify.
Embodiment mono-
The pipeline cleaning pressure testing device of the present embodiment, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline 16, and pressure text head comprises cylindrical shell 7A, 7B, one end of cylindrical shell 7A, 7B is for being connected with pipeline, and the other end is undergauge structure and is equipped with blind plate 1A, 1B and anti-collision air bag 15A, 15B; In cylindrical shell, be equipped with two rabbits, be called the first rabbit 6 and the second rabbit 10, the now opening on cylindrical shell top and outlet should ensure in pipeline, water or pressurized air between rabbit can be discharged, and prevents air dead angle.
Therefore, now the top of cylindrical shell offers the first import 3A, 3B, the second import 8A, 8B, the first outlet 5A, 5B and the second outlet 9A, 9B; The first import 3A is on the cylindrical shell between blind plate 1A and the first rabbit 6, and the first outlet 5A is on the cylindrical shell between the first import 3A and the first rabbit 6; The second import 8A is on the cylindrical shell between the first rabbit 6 and the second rabbit 10, and the second outlet 9A is on the cylindrical shell between the second import 8A and the second rabbit 10.Because rabbit moves in pipeline, in the time being equipped with two rabbits in the pressure text head of pipeline one end, can carry out water filling and drainage works at the arbitrary end of pipeline in order to realize, the position that preferably import of two ends pressure text head is offered with outlet is identical.On cylindrical shell 7A, 7B, be equipped with thermometer mouth 12A, 12B and tensimeter 4A, 4B.
The bottom of cylindrical shell 7A, 7B offers sewage draining exit 13A, 13B, and for supporting saddle 14A, the 14B of cylindrical shell.
The pigging pressure-measuring method of the present embodiment, comprises the step that pressure text head is installed: (when pipeline one end neither possesses water filling condition, when not possessing drainage condition again, water filling and draining need to be carried out in same one end of pipeline so), or respectively respectively at one end; Two pressure text heads are arranged on respectively to the two ends of pipeline, import, outlet and sewage draining exit etc. on pressure text head install valve and are connected with water, air pipe.
The step of pigging operation:
An optional pressure text head is rabbit transmitting terminal, and another pressure text head is rabbit receiving end;
Transmitting terminal: open blind plate 1A, put into the first rabbit 6, close blind plate 1A, open the first import 3A, close the second import 8A, the first outlet 5A, the second outlet 9A and sewage draining exit 13A.
Receiving end: open blind plate 1B, put into anti-collision air bag 15 and close blind plate 1B afterwards, close the first import 3B, the second import 8B, the first outlet 5B, the second outlet 9B, open sewage draining exit 13B.
Start from the first import 3A injecting compressed air, pressurized air drives the first rabbit 6 to move ahead and cleans the interior booty of pipeline 16, until enter in receiving end pressure text head, stop gas injection, after pressure releasing, open receiving end blind plate 1B and take out the first rabbit 6, complete pigging No. one time, as required, can repeated multiple timesly repeat cleaning until qualified.
Calibrate the step of operation:
Pressure text head, pigging operation are installed, are calibrated operation those skilled in the art and can understand and understand, do not repeat them here.
The step of pressure testing operation:
I water filling and draining be the pressure testing operation in the time of the situation of pipe ends respectively, carries out as follows;
Step a water filling
Water filling end: put into successively two rabbits after opening blind plate 1A, be called the second rabbit 10 and the first rabbit 6, close blind plate 1A, open the first import 3A, the second import 8A, the first outlet 5A and the second outlet 9A, close sewage draining exit 13A;
Exhaust end: open after blind plate 1B puts into anti-collision air bag 15B and close blind plate 1B, open the first import 3B, close the second import 8B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
Respectively to the first import 3A and the second import 8A injected water, discharge air from the first outlet 5A and the second outlet 9A from water filling end simultaneously; In the time that air drains, close the first outlet 5A, the second outlet 9A and the first import 3A; The second import 8A continuation water filling promotes the second rabbit 10 and moves ahead, and the air in pipeline 16 is driven lower the first import 3B by discharge ends at the second rabbit 10 and discharged, until the second rabbit 10 arrives the pressure text head end of exhaust end; Confirming does not have air to stop water filling and closes the second import 8A of water filling end and the first import 3A of exhaust end in pipeline 16;
Step b pressure testing
Start test pump and boost and arrive the pressure testing value of regulation from the second import 8A water filling of water filling end, stop water filling, close the second import 8A, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness;
Step c draining
Open the first import 3A of water filling end and the sewage draining exit 13B of exhaust end, from the first import 3A injecting compressed air of water filling end, gas push the first rabbit 6 catches up with water to move ahead, the water of pipeline 16 is discharged by the sewage draining exit 13B of discharge ends, until the first rabbit 6 arrives the pressure text head end of discharge ends, draining finishes.
When according to the definite water filling of step 1 and draining when pipeline is with one end, carry out as follows;
Step a water filling
Water filling end: open blind plate 1A, close blind plate 1A after putting into the first rabbit 6, open the first import 3A and the first outlet 5A, close the second import 8A, the second outlet 9A and sewage draining exit 13A.
Exhaust end: open after putting into successively the second rabbit 10, anti-collision air bag 15B after blind plate 1B and close blind plate 1B, open the first import 3B and the second import 8B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
From the first import 3A injected water of water filling end, simultaneously discharge air until air is closed the second outlet 5A after drained from the first outlet 5A, continuing to promote the first rabbit 6 from the first import 3A injected water moves ahead, air in pipeline 16 is discharged from the first import 3B of exhaust end and the second import 8B under the impetus of the first rabbit 6, stops water filling and close the first import 3B and the second import 8B of exhaust end while confirming there is no air in pipeline 16.
Step b pressure testing
Start test pump from the water filling of water filling end boost until arrives specify pressure testing value stop water filling, close water filling import, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness.
Step c draining
Open the sewage draining exit 13A of water filling end, open the first import 3B injecting compressed air of exhaust end, gas push the first rabbit 6 and the second rabbit 10 move ahead until the first rabbit 6 arrives the pressure text head end of water filling end, and draining finishes.
Embodiment bis-
The pipeline cleaning pressure testing device of the present embodiment, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline 16, and pressure text head comprises cylindrical shell 7A, 7B, one end of cylindrical shell 7A, 7B is for being connected with pipeline, and the other end is undergauge structure and is equipped with blind plate 1A, 1B and anti-collision air bag 15A, 15B; In cylindrical shell, be equipped with two rabbits, be called the first rabbit 6 and the second rabbit 10, the now opening on cylindrical shell top and outlet should ensure in pipeline, water or pressurized air between rabbit can be discharged, and prevents air dead angle.
Therefore, now the top of cylindrical shell offers the first import 3A, 3B, the second import 8A, 8B, triple feed inlet 11A, 11B, the first outlet 5A, 5B and the second outlet 9A, 9B; The first import 3A is on the cylindrical shell between blind plate 1A and the first rabbit 6, and the first outlet 5A is on the cylindrical shell between the first import 3A and the first rabbit 6; The second import 8A is on the cylindrical shell between the first rabbit 6 and the second rabbit 10, and the second outlet 9A is on the cylindrical shell between the second import 8A and the second rabbit 10.Triple feed inlet 11A is opened on the cylindrical shell after the second rabbit 10.Because rabbit moves in pipeline, in the time being equipped with two rabbits in the pressure text head of pipeline one end, can carry out water filling and drainage works at the arbitrary end of pipeline in order to realize, the position that preferably import of two ends pressure text head is offered with outlet is identical.Certainly the position that the import of pipe ends pressure text head and outlet are offered also can be different.On cylindrical shell 7A, 7B, be equipped with thermometer mouth 12A, 12B and tensimeter 4A, 4B.
The bottom of cylindrical shell 7A, 7B offers sewage draining exit 13A, 13B, and for supporting saddle 14A, the 14B of cylindrical shell.
The pigging pressure-measuring method of the present embodiment, comprises the step that pressure text head is installed: (when pipeline one end neither possesses water filling condition, when not possessing drainage condition again, water filling and draining need to be carried out in same one end of pipeline so), or respectively respectively at one end; Two pressure text heads are arranged on respectively to the two ends of pipeline, import, outlet and sewage draining exit etc. on pressure text head install valve and are connected with water, air pipe.
The step of pigging operation:
An optional pressure text head is rabbit transmitting terminal, and another pressure text head is rabbit receiving end;
Transmitting terminal: open blind plate 1A, put into the first rabbit 6, close blind plate 1A, open the first import 3A, close the second import 8A, triple feed inlet 11A, the first outlet 5A, the second outlet 9A and sewage draining exit 13A.
Receiving end: open blind plate 1B, put into anti-collision air bag 15 and close blind plate 1B afterwards, close the first import 3B, the second import 8B, triple feed inlet 11B, the first outlet 5B, the second outlet 9B, open sewage draining exit 13B.
Start from the first import 3A injecting compressed air, pressurized air drives the first rabbit 6 to move ahead and cleans the interior booty of pipeline 16, until enter in receiving end pressure text head, stop gas injection, after pressure releasing, open receiving end blind plate 1B and take out the first rabbit 6, complete pigging No. one time, as required, can repeated multiple timesly repeat cleaning until qualified.
Calibrate the step of operation:
Pressure text head, pigging operation are installed, are calibrated operation those skilled in the art and can understand and understand, do not repeat them here;
The step of pressure testing operation:
I water filling and draining be the pressure testing operation in the time of the situation of pipe ends respectively, carries out as follows;
Step a water filling
Water filling end: put into successively two rabbits after opening blind plate 1A, be called the second rabbit 10 and the first rabbit 6, close blind plate 1A, open the first import 3A, the second import 8A, the first outlet 5A and the second outlet 9A, close sewage draining exit 13A and triple feed inlet 11A;
Exhaust end: open after blind plate 1B puts into anti-collision air bag 15B and close blind plate 1B, open the first import 3B, close the second import 8B, triple feed inlet 11B, the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
Respectively to the first import 3A and the second import 8A injected water, discharge air from the first outlet 5A and the second outlet 9A from water filling end simultaneously; In the time that air drains, close the first outlet 5A, the second outlet 9A and the first import 3A; The second import 8A continuation water filling promotes the second rabbit 10 and moves ahead, and the air in pipeline 16 is driven lower the first import 3B by discharge ends at the second rabbit 10 and discharged, until the second rabbit 10 arrives in the pressure text head of exhaust end; Confirming does not have air to stop water filling and closes the second import 8A of water filling end and the first import 3A of exhaust end in pipeline 16;
Step b pressure testing
Start test pump and boost and arrive the pressure testing value of regulation from the second import 8A water filling of water filling end, stop water filling, close the second import 8A, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness;
Step c draining
Open the first import 3A of water filling end and the sewage draining exit 13B of exhaust end, from the first import 3A injecting compressed air of water filling end, gas push the first rabbit 6 catches up with water to move ahead, the water of pipeline 16 is discharged by the sewage draining exit 13B of discharge ends, until the first rabbit 6 arrives the pressure text head end of discharge ends, draining finishes.
When according to the definite water filling of step 1 and draining when pipeline is with one end, carry out as follows;
Step a water filling
Water filling end: open blind plate 1A, close blind plate 1A after putting into the first rabbit 6, open the first import 3A and the first outlet 5A, close the second import 8A, triple feed inlet 11A, the second outlet 9A and sewage draining exit 13A.
Exhaust end: open after putting into successively the second rabbit 10, anti-collision air bag 15B after blind plate 1B and close blind plate 1B, open the first import 3B, the second import 8B and triple feed inlet 11B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
From the first import 3A injected water of water filling end, simultaneously discharge air until air is closed the second outlet 5A after drained from the first outlet 5A, continuing to promote the first rabbit 6 from the first import 3A injected water moves ahead, air in pipeline 16 is discharged from the first import 3B of exhaust end, the second import 8B, triple feed inlet 11B under the impetus of the first rabbit 6, stops water filling and close the first import 3B, second import 8B and the triple feed inlet 11B of exhaust end while confirming there is no air in pipeline 16.
Step b pressure testing
Start test pump from the water filling of water filling end boost until arrives specify pressure testing value stop water filling, close water filling import, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness.
Step c draining
Open the sewage draining exit 13A of water filling end, open the first import 3B injecting compressed air of exhaust end, gas push the first rabbit 6 and the second rabbit 10 move ahead until the first rabbit 6 arrives in the pressure text head of water filling end, and draining finishes.Due to the whole process of having passed by before the first rabbit 6, the wearing and tearing of stripper rubber, to there will be leakage gas blowby, to such an extent as to can not form pressure reduction, there is no thrust, carry out pushing tow and realize and catch up with water so just enable the second rabbit 10 that is placed in advance exhaust end, the water of pipeline 16 is discharged by the sewage draining exit 13 of water filling end, until the first rabbit 6 arrives water filling end pressure text head end, draining finishes.
Embodiment tri-
The pipeline cleaning pressure testing device of the present embodiment, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline 16, and pressure text head comprises cylindrical shell 7A, 7B, one end of cylindrical shell 7A, 7B is for being connected with pipeline, and the other end is undergauge structure and is equipped with blind plate 1A, 1B and anti-collision air bag 15A, 15B; In cylindrical shell, be equipped with two rabbits, be called the first rabbit 6 and the second rabbit 10, the now opening on cylindrical shell top and outlet should ensure in pipeline, water or pressurized air between rabbit can be discharged, and prevents air dead angle.
Therefore, now the top of cylindrical shell offers the first import 3A, 3B, the second import 8A, 8B, the first outlet 5A, 5B and the second outlet 9A, 9B; The first import 3A is on the cylindrical shell between blind plate 1A and the first rabbit 6, and the first outlet 5A is on the cylindrical shell between the first import 3A and the first rabbit 6; The second import 8A is on the cylindrical shell between the first rabbit 6 and the second rabbit 10, and the second outlet 9A is on the cylindrical shell between the second import 8A and the second rabbit 10.Because rabbit moves in pipeline, in the time being equipped with two rabbits in the pressure text head of pipeline one end, can carry out water filling and drainage works at the arbitrary end of pipeline in order to realize, the import of two ends pressure text head is identical with the position that outlet is offered.Certainly the position that the import of pipe ends pressure text head and outlet are offered also can be different.On cylindrical shell 7A, 7B, be equipped with thermometer mouth 12A, 12B and tensimeter 4A, 4B.
The bottom of cylindrical shell 7A, 7B offers sewage draining exit 13A, 13B, and for supporting saddle 14A, the 14B of cylindrical shell.
The pigging pressure-measuring method of the present embodiment, comprises the step that pressure text head is installed: (when pipeline one end neither possesses water filling condition, when not possessing drainage condition again, water filling and draining need to be carried out in same one end of pipeline so), or respectively respectively at one end; Two pressure text heads are arranged on respectively to the two ends of pipeline, import, outlet and sewage draining exit etc. on pressure text head install valve and are connected with water, air pipe.
The step of pigging operation:
An optional pressure text head is rabbit transmitting terminal, and another pressure text head is rabbit receiving end;
Transmitting terminal: open blind plate 1A, put into the first rabbit 6, close blind plate 1A, open the first import 3A, close the second import 8A, the first outlet 5A, the second outlet 9A and sewage draining exit 13A.
Receiving end: open blind plate 1B, put into anti-collision air bag 15 and close blind plate 1B afterwards, close the first import 3B, the second import 8B, the first outlet 5B, the second outlet 9B, open sewage draining exit 13B.
Start from the first import 3A injecting compressed air, pressurized air drives the first rabbit 6 to move ahead and cleans the interior booty of pipeline 16, until enter in receiving end pressure text head, stop gas injection, after pressure releasing, open receiving end blind plate 1B and take out the first rabbit 6, complete pigging No. one time, as required, can repeated multiple timesly repeat cleaning until qualified.
Calibrate the step of operation:
Pressure text head, pigging operation are installed, are calibrated operation those skilled in the art and can understand and understand, do not repeat them here;
The step of pressure testing operation:
I water filling and draining be the pressure testing operation in the time of the situation of pipe ends respectively, carries out as follows;
Step a water filling
Water filling end: put into successively two rabbits after opening blind plate 1A, be called the second rabbit 10 and the first rabbit 6, close blind plate 1A, open the first import 3A, the second import 8A, the first outlet 5A and the second outlet 9A, close sewage draining exit 13A;
Exhaust end: open after blind plate 1B puts into anti-collision air bag 15B and close blind plate 1B, open the first import 3B, close the second import 8B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
Respectively to the first import 3A and the second import 8A injected water, discharge air from the first outlet 5A and the second outlet 9A from water filling end simultaneously; In the time that air drains, close the first outlet 5A, the second outlet 9A and the first import 3A; The second import 8A continuation water filling promotes the second rabbit 10 and moves ahead, and the air in pipeline 16 is driven lower the first import 3B by discharge ends at the second rabbit 10 and discharged, until the second rabbit 10 arrives the pressure text head end of exhaust end; Confirming does not have air to stop water filling and closes the second import 8A of water filling end and the first import 3A of exhaust end in pipeline 16;
Step b pressure testing
Start test pump and boost and arrive the pressure testing value of regulation from the second import 8A water filling of water filling end, stop water filling, close the second import 8A, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness;
Step c draining
Open the first import 3A of water filling end and the sewage draining exit 13B of exhaust end, from the first import 3A injecting compressed air of water filling end, gas push the first rabbit 6 catches up with water to move ahead, the water of pipeline 16 is discharged by the sewage draining exit 13B of discharge ends, until the first rabbit 6 arrives the pressure text head end of discharge ends, draining finishes.
When according to the definite water filling of step 1 and draining when pipeline is with one end, carry out as follows;
Step a water filling
Water filling end: open blind plate 1A, close blind plate 1A after putting into the first rabbit 6, open the first import 3A and the first outlet 5A, close the second import 8A, the second outlet 9A and sewage draining exit 13A.
Exhaust end: open after putting into successively the second rabbit 10, anti-collision air bag 15B after blind plate 1B and close blind plate 1B, open the first import 3B and the second import 8B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
From the first import 3A injected water of water filling end, simultaneously discharge air until air is closed the second outlet 5A after drained from the first outlet 5A, continuing to promote the first rabbit 6 from the first import 3A injected water moves ahead, air in pipeline 16 is discharged from the first import 3B of exhaust end and the second import 8B under the impetus of the first rabbit 6, stops water filling and close the first import 3B and the second import 8B of exhaust end while confirming there is no air in pipeline 16.
Step b pressure testing
Start test pump from the water filling of water filling end boost until arrives specify pressure testing value stop water filling, close water filling import, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness.
Step c draining
Open the sewage draining exit 13A of water filling end, open the first import 3B injecting compressed air of exhaust end, gas push the first rabbit 6 and the second rabbit 10 move ahead until the first rabbit 6 arrives the pressure text head end of water filling end, and draining finishes.
After the pressure testing end of job, carry out again drying operation, drying operation is in pressure text head, to put into foam pig water suction pigging, passes into dry air or adds hot-air and dehumidify, and dry job step and pigging operation are similar, those skilled in the art can understand and understand, and does not repeat them here.
Embodiment tetra-
The pipeline cleaning pressure testing device of the present embodiment, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline 16, and pressure text head comprises cylindrical shell 7A, 7B, one end of cylindrical shell 7A, 7B is for being connected with pipeline, and the other end is undergauge structure and is equipped with blind plate 1A, 1B and anti-collision air bag 15A, 15B; In cylindrical shell, be equipped with two rabbits, be called the first rabbit 6 and the second rabbit 10, the now opening on cylindrical shell top and outlet should ensure in pipeline, water or pressurized air between rabbit can be discharged, and prevents air dead angle.
Therefore, now the top of cylindrical shell offers the first import 3A, 3B, the second import 8A, 8B, the first outlet 5A, 5B and the second outlet 9A, 9B; The first import 3A is on the cylindrical shell between blind plate 1A and the first rabbit 6, and the first outlet 5A is on the cylindrical shell between the first import 3A and the first rabbit 6; The second import 8A is on the cylindrical shell between the first rabbit 6 and the second rabbit 10, and the second outlet 9A is on the cylindrical shell between the second import 8A and the second rabbit 10.Because rabbit moves in pipeline, in the time being equipped with two rabbits in the pressure text head of pipeline one end, can carry out water filling and drainage works at the arbitrary end of pipeline in order to realize, the position that preferably import of two ends pressure text head is offered with outlet is identical.Certainly the position that the import of pipe ends pressure text head and outlet are offered also can be different.On cylindrical shell 7A, 7B, be equipped with thermometer mouth 12A, 12B and tensimeter 4A, 4B.
The bottom of cylindrical shell 7A, 7B offers sewage draining exit 13A, 13B, and for supporting saddle 14A, the 14B of cylindrical shell.
The pigging pressure-measuring method of the present embodiment, comprises the step that pressure text head is installed: (when pipeline one end neither possesses water filling condition, when not possessing drainage condition again, water filling and draining need to be carried out in same one end of pipeline so), or respectively respectively at one end; Two pressure text heads are arranged on respectively to the two ends of pipeline, import, outlet and sewage draining exit etc. on pressure text head install valve and are connected with water, air pipe.
The step of pigging operation:
An optional pressure text head is rabbit transmitting terminal, and another pressure text head is rabbit receiving end;
Transmitting terminal: open blind plate 1A, put into the first rabbit 6, close blind plate 1A, open the first import 3A, close the second import 8A, the first outlet 5A, the second outlet 9A and sewage draining exit 13A.
Receiving end: open blind plate 1B, put into anti-collision air bag 15 and close blind plate 1B afterwards, close the first import 3B, the second import 8B, the first outlet 5B, the second outlet 9B, open sewage draining exit 13B.
Start from the first import 3A injecting compressed air, pressurized air drives the first rabbit 6 to move ahead and cleans the interior booty of pipeline 16, until enter in receiving end pressure text head, stop gas injection, after pressure releasing, open receiving end blind plate 1B and take out the first rabbit 6, complete pigging No. one time, as required, can repeated multiple timesly repeat cleaning until qualified.
Calibrate the step of operation:
Pressure text head, pigging operation are installed, are calibrated operation those skilled in the art and can understand and understand, do not repeat them here;
The step of pressure testing operation:
I water filling and draining be the pressure testing operation in the time of the situation of pipe ends respectively, carries out as follows;
Step a water filling
Water filling end: put into successively two rabbits after opening blind plate 1A, be called the second rabbit 10 and the first rabbit 6, close blind plate 1A, open the first import 3A, the second import 8A, the first outlet 5A and the second outlet 9A, close sewage draining exit 13A;
Exhaust end: open after blind plate 1B puts into anti-collision air bag 15B and close blind plate 1B, open the first import 3B, close the second import 8B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
Respectively to the first import 3A and the second import 8A injected water, discharge air from the first outlet 5A and the second outlet 9A from water filling end simultaneously; In the time that air drains, close the first outlet 5A, the second outlet 9A and the first import 3A; The second import 8A continuation water filling promotes the second rabbit 10 and moves ahead, and the air in pipeline 16 is driven lower the first import 3B by discharge ends at the second rabbit 10 and discharged, until the second rabbit 10 arrives the pressure text head end of exhaust end; Confirming does not have air to stop water filling and closes the second import 8A of water filling end and the first import 3A of exhaust end in pipeline 16;
Step b pressure testing
Start test pump and boost and arrive the pressure testing value of regulation from the second import 8A water filling of water filling end, stop water filling, close the second import 8A, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness;
Step c draining
Open the first import 3A of water filling end and the sewage draining exit 13B of exhaust end, from the first import 3A injecting compressed air of water filling end, gas push the first rabbit 6 catches up with water to move ahead, the water of pipeline 16 is discharged by the sewage draining exit 13B of discharge ends, until the first rabbit 6 arrives the pressure text head end of discharge ends, draining finishes.
When according to the definite water filling of step 1 and draining when pipeline is with one end, carry out as follows;
Step a water filling
Water filling end: open blind plate 1A, close blind plate 1A after putting into the first rabbit 6, open the first import 3A and the first outlet 5A, close the second import 8A, the second outlet 9A and sewage draining exit 13A.
Exhaust end: open after putting into successively the second rabbit 10, anti-collision air bag 15B after blind plate 1B and close blind plate 1B, open the first import 3B and the second import 8B, close the first outlet 5B, the second outlet 9B and sewage draining exit 13B.
From the first import 3A injected water of water filling end, simultaneously discharge air until air is closed the second outlet 5A after drained from the first outlet 5A, continuing to promote the first rabbit 6 from the first import 3A injected water moves ahead, air in pipeline 16 is discharged from the first import 3B of exhaust end and the second import 8B under the impetus of the first rabbit 6, stops water filling and close the first import 3B and the second import 8B of exhaust end while confirming there is no air in pipeline 16.
Step b pressure testing
Start test pump from the water filling of water filling end boost until arrives specify pressure testing value stop water filling, close water filling import, voltage stabilizing 4 hours; Slowly be depressurized to tightness pressure testing value, voltage stabilizing 24 hours, checks pipeline tightness.
Step c draining
Open the sewage draining exit 13A of water filling end, open the first import 3B injecting compressed air of exhaust end, gas push the first rabbit 6 and the second rabbit 10 move ahead until the first rabbit 6 arrives the pressure text head end of water filling end, and draining finishes.
After the pressure testing end of job, carry out again drying operation, drying operation is in pressure text head, to put into foam pig water suction pigging, passes into dry air or adds hot-air and dehumidify, and dry job step and pigging operation are similar, those skilled in the art can understand and understand, and does not repeat them here.
After drying operation completes, noting nitrogen operation, note nitrogen operation and pigging operation are similar, and those skilled in the art understands and understand, at this without repeating.
Claims (8)
1. a pipeline cleaning pressure text head, is characterized in that, comprises cylindrical shell, and one end of cylindrical shell is for being connected with pipeline, and the cylindrical shell other end is equipped with blind plate, in cylindrical shell, is equipped with anti-collision air bag near blind plate place, is equipped with rabbit in cylindrical shell; The top of cylindrical shell offers the opening of pressurized air and water turnover, and the bottom of cylindrical shell offers sewage draining exit.
2. a pipeline cleaning pressure testing device, it is characterized in that, comprise two pressure text heads, two pressure text heads are connected to the two ends of pipeline, and described pressure text head comprises cylindrical shell, and one end of cylindrical shell is for being connected with pipeline, the other end of cylindrical shell is equipped with blind plate, in cylindrical shell, be equipped with anti-collision air bag near blind plate place, the top of cylindrical shell offers the opening of pressurized air and water turnover, and the bottom of cylindrical shell offers sewage draining exit; In cylindrical shell, be equipped with rabbit.
3. pipeline cleaning pressure testing device according to claim 2, it is characterized in that, in the cylindrical shell of the pressure text head in two pressure text heads, be equipped with the first rabbit and the second rabbit, the top of cylindrical shell offers the first import, the second import, the first outlet and the second outlet; The first import is on the cylindrical shell between blind plate and the first rabbit, and the first outlet is on the cylindrical shell between the first import and the first rabbit; The second import is on the cylindrical shell between the first rabbit and the second rabbit, and the second outlet is on the cylindrical shell between the second import and the second rabbit; The position that opening and the sewage draining exit of the pressurized air of offering on the cylindrical shell of two pressure text heads and water turnover are offered is identical.
4. pipeline cleaning pressure testing device according to claim 3, is characterized in that, is also provided with triple feed inlet on described cylindrical shell, and triple feed inlet is positioned on the cylindrical shell after the second rabbit.
5. pipeline cleaning pressure testing device according to claim 4, is characterized in that, is equipped with thermometer mouth on described cylindrical shell.
6. a pipeline cleaning pressure-measuring method, comprises the step that pressure text head is installed, and the step of pigging operation is calibrated the step of operation and the step of pressure testing operation, it is characterized in that, the step of pressure testing operation is carried out in accordance with the following steps:
I water filling and draining be the pressure testing operation in the time of pipe ends situation respectively, carries out as follows;
A, in the pressure text head of pipeline one end, put into two rabbits as water filling end, in the pressure text head of the pipeline other end, put into anti-collision air bag as exhaust end, also promote a wherein rabbit from the water filling of water filling end and proceed in the pressure text head of the other end, water filling is caught up with gas until the interior tested setting-out of pipeline is full of;
B, start test pump from the water filling of water filling end boost, pressure testing;
After c, pressure testing, promote another rabbit from injecting compressed air in the pressure text head of water filling end and move ahead, water is caught up with in gas injection, until rabbit arrives to the pressure text head of the pipeline other end, the compressed air of pressure testing water in pipeline is replaced;
II water filling and draining be the pressure testing operation during with the situation of one end at pipeline, carries out as follows;
A, in the pressure text head that possesses water filling and drainage condition, pack successively rabbit and anti-collision air bag into as water filling end, in the pressure text head of the pipeline other end, pack successively rabbit and anti-collision air bag into as exhaust end, promote rabbit from the water filling of water filling end and proceed in the pressure text head of the pipeline other end, water filling is caught up with gas until the interior tested setting-out of pipeline is full of;
B, start test pump from the water filling of water filling end boost, pressure testing;
C, promote from exhaust end injecting compressed air pressure text head that two rabbits proceed to water filling end in, the compressed air of pressure testing water in pipeline is replaced.
7. pipeline cleaning pressure-measuring method according to claim 6, is characterized in that, also carries out drying operation and the operation of note nitrogen after pressure testing operation.
8. pipeline cleaning pressure-measuring method according to claim 7, is characterized in that, described drying operation is for put into foam pig water suction pigging in pressure testing, and passes into dry air or add hot-air and dehumidify.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307819A (en) * | 2014-10-14 | 2015-01-28 | 中国石油天然气股份有限公司 | Combined cleaning method for waste oil and gas pipeline residues |
| CN104807701A (en) * | 2015-04-01 | 2015-07-29 | 中石化工建设有限公司 | Pipeline pressure testing process |
| CN109406186A (en) * | 2018-12-07 | 2019-03-01 | 中国石油大学(北京) | Deep Water Steel catenary riser pigging simulation test device |
| CN110595899A (en) * | 2019-09-12 | 2019-12-20 | 中国化学工程第六建设有限公司 | Pressure testing device and pressure testing method for long-distance pipeline |
| CN111318531A (en) * | 2020-02-28 | 2020-06-23 | 温氏食品集团股份有限公司 | Cage cleaning system |
| CN113319078A (en) * | 2020-06-28 | 2021-08-31 | 中国海洋石油集团有限公司 | Automatic spherical pig launcher and automatic pig method |
| CN113532770A (en) * | 2021-07-26 | 2021-10-22 | 重庆工商大学 | Device and method for measuring micropore leakage amount of injection glass container |
| CN114608510A (en) * | 2022-03-29 | 2022-06-10 | 无锡连强智能装备有限公司 | Automatic outer diameter measuring device of lathe with accurate measuring effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290075A (en) * | 2008-06-06 | 2008-10-22 | 陕西化建工程有限责任公司 | Long conveying pipeline construction method capable of simultaneously clearing pipe and testing pressure |
| CN201413278Y (en) * | 2009-06-02 | 2010-02-24 | 中国石油天然气股份有限公司 | Pipeline pressure testing device |
| CN202028590U (en) * | 2010-12-31 | 2011-11-09 | 中国石油天然气集团公司 | Pigging device for self-rotating type petroleum and natural gas pipeline |
| CN202316437U (en) * | 2011-11-01 | 2012-07-11 | 河南中拓石油工程技术股份有限公司 | Pipe cleaner for long distance pipeline |
| CN202916142U (en) * | 2012-11-19 | 2013-05-01 | 中国石油天然气集团公司 | Pipeline pressure test head device |
-
2014
- 2014-06-10 CN CN201410253846.6A patent/CN104020049B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101290075A (en) * | 2008-06-06 | 2008-10-22 | 陕西化建工程有限责任公司 | Long conveying pipeline construction method capable of simultaneously clearing pipe and testing pressure |
| CN201413278Y (en) * | 2009-06-02 | 2010-02-24 | 中国石油天然气股份有限公司 | Pipeline pressure testing device |
| CN202028590U (en) * | 2010-12-31 | 2011-11-09 | 中国石油天然气集团公司 | Pigging device for self-rotating type petroleum and natural gas pipeline |
| CN202316437U (en) * | 2011-11-01 | 2012-07-11 | 河南中拓石油工程技术股份有限公司 | Pipe cleaner for long distance pipeline |
| CN202916142U (en) * | 2012-11-19 | 2013-05-01 | 中国石油天然气集团公司 | Pipeline pressure test head device |
Non-Patent Citations (1)
| Title |
|---|
| 周玲: "长输管道的清管、测径、试压技术", 《化工建设工程》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307819A (en) * | 2014-10-14 | 2015-01-28 | 中国石油天然气股份有限公司 | Combined cleaning method for waste oil and gas pipeline residues |
| CN104807701A (en) * | 2015-04-01 | 2015-07-29 | 中石化工建设有限公司 | Pipeline pressure testing process |
| CN104807701B (en) * | 2015-04-01 | 2017-10-24 | 中石化工建设有限公司 | Pipeline pressure test technique |
| CN109406186A (en) * | 2018-12-07 | 2019-03-01 | 中国石油大学(北京) | Deep Water Steel catenary riser pigging simulation test device |
| CN109406186B (en) * | 2018-12-07 | 2019-10-18 | 中国石油大学(北京) | Deep Water Steel catenary riser pigging simulation test device |
| CN110595899B (en) * | 2019-09-12 | 2022-04-15 | 中国化学工程第六建设有限公司 | Pressure testing device and pressure testing method for long-distance pipeline |
| CN110595899A (en) * | 2019-09-12 | 2019-12-20 | 中国化学工程第六建设有限公司 | Pressure testing device and pressure testing method for long-distance pipeline |
| CN111318531A (en) * | 2020-02-28 | 2020-06-23 | 温氏食品集团股份有限公司 | Cage cleaning system |
| CN113319078A (en) * | 2020-06-28 | 2021-08-31 | 中国海洋石油集团有限公司 | Automatic spherical pig launcher and automatic pig method |
| CN113532770A (en) * | 2021-07-26 | 2021-10-22 | 重庆工商大学 | Device and method for measuring micropore leakage amount of injection glass container |
| CN113532770B (en) * | 2021-07-26 | 2023-05-12 | 重庆工商大学 | Device and method for measuring micropore leakage of injection glass container |
| CN114608510A (en) * | 2022-03-29 | 2022-06-10 | 无锡连强智能装备有限公司 | Automatic outer diameter measuring device of lathe with accurate measuring effect |
| CN114608510B (en) * | 2022-03-29 | 2023-11-24 | 无锡连强智能装备有限公司 | Automatic external diameter measuring device of lathe with accurate measurement effect |
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