CN207379962U - A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device - Google Patents
A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device Download PDFInfo
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- CN207379962U CN207379962U CN201721174428.3U CN201721174428U CN207379962U CN 207379962 U CN207379962 U CN 207379962U CN 201721174428 U CN201721174428 U CN 201721174428U CN 207379962 U CN207379962 U CN 207379962U
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Abstract
The utility model is related to a kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device, integrate corrosion coupon and do not stop the supple of gas or steam and pick and place the functions such as operation, corrosive pipeline on-line monitoring, etch state grading forewarning system.Lacing film fetching device is designed, by residual gas absorption plant, not stopping the supple of gas or steam for plate hanger box is completed and picks and places the purging of residual gas in operation and upper and lower chamber.Design cage modle plate hanger box, multigroup, more specification lacing films are installed, it is placed it in by lacing film fetching device and extension means in corrosive pipeline environment, lacing film corrosion failure successively according to different size, the elastic clamping structure of triggering generates different degrees of elongation, change swept resistance resistance value in observation circuit, realize average corrosion rate continuously measurement and the multistage early warning of pipeline.Using acoustooptic alarm system, grading forewarning system is carried out to pipeline difference residual thickness for corrosion-monitoring data of the present apparatus according to pipeline.
Description
Technical field
The utility model is related to a kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device, belong to oil gas field pipeline and
Equipment corrosion monitoring technical field.
Background technology
High sulfur Gas Fields refer to the hydrogen sulfide in natural gas content of output in 2%~70% gas field, and China gas field is most
Belong to high sulfur Gas Fields.In exploitation transmission process for many years, the tubing etching problem of sulfur Gas Fields is always that gas field produced
A suitable stubborn problem in journey.The corrosion of tubing can usually increase the management cost, serious of the input cost of tubing, manpower
When even can also influence the production at scene, cause serious security incident, bring huge economic loss, therefore in high sour gas
In the exploitation transmission process in field, corrosion condition of the suitable corrosion monitoring means to grasp equipment and pipeline, optimization corrosion are chosen
It is particularly important to reduce production cost for prevention technique.
The corrosion monitoring technology means that high sulfur Gas Fields use at present mainly have weight loss, linear polarization, resistance probe,
Reluctance probe, electric fingerprint technique etc..Different corrosion monitoring technology means all have unique applicability, wherein, weight loss method
It is easy to operate, general corrosion and local corrosion information can be provided, applicable corrosive environment is wide, and test result accuracy is high, is current
The live corrosion condition monitoring method generally used both at home and abroad.But its monitoring cycle is longer, and in pipeline service life scope
Interior implementation corrosion monitoring need to divide multiple batches of progress, it is impossible to which corrosion or destruction to equipment or pipeline are continuously monitored, significantly
Add the workload of production management personnel.Secondly as high sulfur-containing natural gas toxicity is larger, present in production management process
Risk repeatedly carries out exchanging lacing film for and operating easily causing intoxication accident, endangers operator's health also much larger than common gas field.This
Outside, the etch state that weight loss method cannot be different to pipeline carries out early warning, so that administrative staff take effective technique
Anti-corrosion measure reduces the possibility that security incident occurs.
Therefore, for the significant corrosion problems of high sulfur Gas Fields production equipment and pipeline, conveying gas toxicity is big and hair
The features such as raw damage sequence is serious carries out continuous corrosion monitoring and corrosion early warning using the corrosion monitoring means of economical rationality
Safety, economical operation to pipeline and equipment improve production economy benefit and have great importance.
Utility model content
The purpose of this utility model is to provide a kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device, from ensuring
The height of pipeline safety operation is set out, and comprehensive analysis influences the factor of Corrosion monitoring data reliability, carries out corrosion coupon monitoring
Prior-warning device design, for corrosive pipeline Analysis And Evaluation, Instructing manufacture, anti-corrosion measure preferably etc. reliable reference frame is provided.
The utility model mainly solves problems with：
(1) corrosion coupon fetching device is designed, upper and lower chamber handwheel is rotated, realizes that high sulfur Gas Fields corrosion coupon is not stopped the supple of gas or steam
Operation is picked and placeed, by residual gas absorption plant, purges the residual gas in corrosion monitor.
(2) corrosion monitoring circuit is designed, the corrosion coupon failure of different size triggers elastic clamping structure to generate different journeys
The elongation of degree changes swept resistance resistance value in observation circuit, realizes the monitoring of pipeline average corrosion rate.
(3) extension means, cage modle plate hanger box are designed, multigroup, the more specification corrosion coupons of installation are selected in Monitoring Pinpelines, in pipeline
The continuous monitoring of corrosive pipeline state is realized in service life, reference frame is provided for scientific evaluation Remaining Strength of Corroded Pipeline.
(4) by data transmission module transfer corrosion monitoring information, using acoustooptic alarm system to corrosive pipeline degree into
Row multistage early warning, Process cor- rosion- protection is chosen in Instructing manufacture operational process.
To achieve these goals, the technical solution of the utility model is as follows.
A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device includes device cylinder 1, lacing film fetching device 2, residual
Remaining gas absorbing device 3, extension means 4, cage modle plate hanger box 5, flange 6, mounting base 7, production flow line 8；
Described device cylinder 1 is connected by flange 6 with mounting base 7, and the mounting base 7 is welded on production flow line 8, described
Lacing film fetching device 2 is mounted in device cylinder 1, and auxiliary positioning, the residual gas absorption plant are carried out by extension means 4
3 are connected by connection flexible pipe with device cylinder 1, and the extension means 4 are connected with cage modle plate hanger box 5.
Further, the lacing film fetching device 2 includes upper and lower transmission mechanism, upper transmission mechanism and lower transmission mechanism
With identical structure；
Upper and lower transmission mechanism includes rotating handwheel 201, driving shaft 202, the first rotation axis 203, the second rotation axis 204, master
Driving wheel 205, the first driven wheel 206, the second driven wheel 207, driving belt 208, limited block 209, transmission case 210, conveyor track
211st, spacing ring 212；
The rotation handwheel 201 is connected with driving shaft 202, and the driving wheel 205 is mounted on driving shaft 202, with first
Driven wheel 206, the second driven wheel 207 engage, and first driven wheel 206, the second driven wheel 207 are separately mounted to the first rotation
On axis 203, the second rotation axis 204, first rotation axis 203, the second rotation axis 204 are equipped with driving belt 208 and /V
Block 209, the limited block 209 limit the offset of driving belt 208 on the rotating shaft, the driving belt 208 and transmission case
210 connect, and lower bottom part is equipped with venthole on the transmission case 210, and spacing ring 212, the /V are moved to through conveyor track 211
Ring 212 coordinates extension means 4 to be locked transmission case 210.
Further, the residual gas absorption plant 3 includes breather check valve 301, exhaust check valve 302, air guide
Pipe 303, lye 304 catch mist silk screen 305, activated carbon 306, silica gel 307, reversing handle 308, the first air inlet 309, second into
Gas port 310, balance cylinder 31；
The balance cylinder 31 includes balanced plug 311, weight 312, supercharging column 313, baffle ring 314；The balance of balance cylinder 31
Pressure value is changed by the weight 312 increased and decreased in balanced plug 311.
Further, the extension means bag 4 includes signal transmssion line 401, turning handle 402, down-pressed pole 403, O-ring seal
404th, fixed plug 405, push joining beam 406, hanging rod 407, connection ring 409, upper connecting rod 410, U-shaped bullet on supporting 408, first
Spring 411, lower link 412, first time connection ring 413, fixed disk 414；
The signal transmssion line 401 is encapsulated in down-pressed pole 403,405, pushing joining beam 406 is filled in fixation, in upper connecting rod 410, institute
Down-pressed pole 403 is stated equipped with turning handle 402, by 404 two way seal of upper and lower two O-ring seals, the fixed plug 405, which is located at, to be passed
In dynamic case 210, by 403 auxiliary positioning of down-pressed pole, the pushing joining beam 406 is mounted on fixed plug 405, with supporting 408
Connection, the supporting 408 are connected with connection ring on first 409, connection ring 409 and first time connection ring 413 on described first
It is connected by U-shaped spring 411, connection ring 409, first time connection ring 413 pass through upper connecting rod 410, lower company respectively on described first
Bar 412 is connected with cage modle plate hanger box 5, and first time connection ring 413 is connected with fixed disk 414, the supporting 408, first
Upper connection ring 409, first time connection ring 413, fixed disk 414 are mounted on hanging rod 407, and described 407 one end of hanging rod is fixed on biography
In dynamic case 210.
Further, DN80~DN200 pipelines, the extension means 4 include under connection ring 409 and first connecting on first
Ring 413 is connect, connection ring 409 is connected with first time connection ring 413 by 2 U-shaped springs 411 on first；More than DN200 pipelines,
The extension means 4 include connection ring 415, first time connection ring 413, second time connection in connection ring 409, second on first
Ring 416, connection ring 409 is connected with first time connection ring 413 by 4 U-shaped springs on first, connection ring 415 and on second
Two times connection rings 416 are connected by 2 U-shaped springs, and each U-shaped spring is protected using polytetrafluoroethylene material.
Further, the cage modle plate hanger box 5 includes top bottom-disc 501, low bottom-disc 502, connecting pole 503, protection cap
504th, lacing film 505, upper pillar stand 506, lower pillar stand 507, spring 508, retaining ring 509, gasket 510, connecting rod 511, nut 512, cunning
Dynamic device 513, swept resistance case 514；
The top bottom-disc 501 is connected with low bottom-disc 502 by connecting pole 503, and the top bottom-disc 501 is equipped with protection cap 504,
The low bottom-disc 502 is welded with lower pillar stand 507, and the upper pillar stand 506, lower pillar stand 507 and lacing film 505 are connected through a screw thread, institute
It states upper pillar stand 506 to be connected through a screw thread with retaining ring 509 through top bottom-disc 501, the spring 508 is placed on upper pillar stand 506, one end
Top bottom-disc 501 is fixed on, the other end compresses fixation by retaining ring 509, and the retaining ring 509 is equipped with connecting rod 511, passes through gasket
510th, nut 512 is fixed, and 511 end of connecting rod is located at 513 lower end of slider, the slider 513 and swept resistance
Case 514 connects.
Further, the cage modle plate hanger box 5 can hang the corrosion coupon of 8~12 kinds of different sizes.
Further, the lacing film 505 is the cylinder lacing film of TBE (threaded both ends), a diameter of：
Wherein：dkFor corrosion coupon diameter, mm；K numbers for corrosion coupon；Use surpluses or remaining surplus of the C for pipeline,
mm；N is the lacing film number of installation.
Further, the high sulfur Gas Fields gathering line corrosion monitoring prior-warning device method, comprises the following steps：
S1, the corrosion coupon size that 8~12 kinds of different sizes are chosen according to corrosion monitoring early warning demand；
S2, the corrosion monitoring early warning lacing film 505 of different size is connected through a screw thread mode it is installed on cage modle lacing film successively
In case 5, the spring 508 of identical quantity is chosen, natural elongation is different, increases successively according to the natural elongation of spring 508
Gradually increased order is installed on upper disk 501 and is compressed to sustained height level, device cylinder 1 big corresponding lacing film specification successively
It is mounted on by the connection of flange 6 in mounting base 7；
S3, balanced valve 72 is opened, unscrews hollow plug valve 71, rotate lower chambers handwheel 201, driving wheel 205 is respectively with the
One driven wheel 206,207 engaged transmission of the second driven wheel, the first rotation axis 203 and the second rotation axis 204 pass through driving belt 208
Transmission case 210 is driven to be moved downward along drive rail 211, cage modle plate hanger box 5 is positioned in production flow line 8；
S4, turning handle 402 is rotated, down-pressed pole 403 is moved downward at fixed plug 405, and signal transmssion line 401 is in and closes at this time
Conjunction state is rotated further handle 402, and down-pressed pole 403 promotes fixed plug 405 to move down, and the pushing being connected with fixed plug 405 joins
Bar 406 is pressed through supporting 408 being connected to the U-shaped spring 411 on first between connection ring 409 and first time connection ring 413
Contracting connects the upper connecting rod 410 of connection ring 409 on first and drives cage modle lacing film with being connected the lower link 412 of first time connection ring 413
Case 5 is stretched in production flow line；
S5, installation is complete for corrosion monitoring prior-warning device, and corrosion coupon 505 does not fail at this time, and slider does not occur
Displacement, swept resistance resistance value are maximum, and corrosion monitoring circuital current is I0；
Wherein：I0Observation circuit electric current before failing for lacing film, A；U is supply voltage, V；R0For fixed value resistance resistance value, Ω；
RiFor the maximum value of swept resistance i, Ω；N is swept resistance sum, and i numbers for swept resistance；
S6, after a period of time, corrosion failure occurs for corrosion monitoring early warning lacing film 505, is fixed on the spring of top bottom-disc 501
508 are recovered by compressive state to natural retracted position, and upper pillar stand 506 takeoffs upwards under the drive of spring 508, and commencing height is
The reduction length of spring, the connecting rod 511 being connected at this time with retaining ring 509 drive slider 513 to move up, and swept resistance resistance value subtracts
Small, observation circuit electric current increase, different size lacing film corrosion failure causes spring that different reduction lengths, corrosion monitoring electricity occurs
Road electric current is I；
Wherein：I for lacing film fail post-etching observation circuit electric current, A；xiFor the effective length of swept resistance, mm, L are cunning
Dynamic resistance total length, mm；
The effective length x of swept resistancei：
xi=L-l
Wherein, l corresponds to the reduction length of spring 508 before failing for the lacing film 505 of generation corrosion failure, and mm is different
Specification lacing film occur corrosion failure before correspond to spring 508 setting height(from bottom) it is identical, the natural elongation difference of spring 508 causes to pacify
The reduction length of each spring 508 is different during dress, and different reduction lengths causes swept resistance change in resistance value after the failure of lacing film 505
It differs, changes observation circuit electric current；
At this point, the corrosion coupon size d of corrosion failure occurs：
The average corrosion rate v of corrosion coupon：
Wherein, v be lacing film corrosion rate, mm/a；D be lacing film diameter, mm；Δ t is the time interval that lacing film fails,
a；I1Observation circuit electric current before failing for lacing film, A；kiFor conversion coefficient；
S7, analog current signal are carried out into intelligence instrument CPU processor at data after putting big, digital-to-analogue conversion before menstruation
Corrosion data is transmitted to station control system by reason by wireless-transmission network；
S8, using acoustooptic alarm system, be C/ to corrosive pipeline thickness according to use the surplus of pipeline or corrosion allowance C
4th, 4 kinds of etch states of 2C/4,3C/4, C (the lacing film diameter d to fail is equal to 4 kinds of etch states of C/2, C, 3C/2,2C)
It carries out grading forewarning system or (fails to 6 kinds of etch states that corrosive pipeline thickness is C/6,2C/6,3C/6,4C/6,5C/6, C
Lacing film diameter d is equal to 6 kinds of etch states of C/3,2C/3, C, 4C/3,5C/3,2C) carry out six grades of early warning；
S9, corrosion monitoring early warning terminate, and rotate backward turning handle 402, and down-pressed pole 403 moves up, and U-shaped spring 411 is gradual
Recover nature elongation state, connection ring 409 moves up on first be connected with U-shaped spring 411, connection ring in connection first
409 upper connecting rod 410 drives cage modle extension disk case 5 to be shunk；
S10, upper chamber's handwheel is rotated, transmission case 210 drives cage modle plate hanger box 5 to move up along conveyor track 211, successively
Close hollow plug valve 71, balanced valve 72, connection residual gas absorption plant 3；
S11, the air bleeding valve 121 for being located at device cylinder lower chambers 12 is opened, the residual gas of device cylinder 1 passes through air inlet list
To valve 301 along gas-guide tube 303 into residual gas absorption plant 3, through lye 304, mist silk screen 305, activated carbon 306, silica gel are caught
307 pairs of residual gas carry out after absorption processing from the second air inlet 310 into balance cylinder 31 and promote balanced plug 311 to moving up
It is dynamic, when the stopping of balanced plug 311 movement or 314 lower section of baffle ring is moved to, pulls out reversing handle 308, the first air inlet 309
It opens, the second air inlet 310 is closed, and pushes supercharging column 313, and gas enters device cylinder by balance cylinder 31 through exhaust check valve 302
Body 1, the residual gas of device cylinder 1 enter absorption plant 3 along gas-guide tube 303 through breather check valve 301, through lye 304, catch mist
It is discharged after silk screen 305, activated carbon 306,307 absorption of silica gel processing through the first air inlet 309, the residual gas of finishing device cylinder 1
Body purges.
The advantageous effect of the utility model is：
(1) the utility model is mainly for high sulfur Gas Fields gathering system, by designing corrosion coupon fetching device, remnants
Gas absorbing device realizes that high sulfur Gas Fields corrosion coupon is not stopped the supple of gas or steam and picks and places residual gas in operation and corrosion monitor and blow
It sweeps, residual gas is avoided to be detrimental to health.
(2) cage modle plate hanger box corrosive pipeline monitoring point supporting various specifications corrosion coupon, by lacing film fetching device,
Extension means are placed in production flow line, are failed successively according to various sizes of corrosion coupon in the corrosion monitoring cycle, are passed through corrosion
Observation circuit and data transmission module are realized the average corrosion rate continuous monitoring of different production status underground pipelines, are commented for science
Valency Remaining Strength of Corroded Pipeline provides reference frame.
(3) according to corrosion-monitoring data, by acoustooptic alarm system, early warning is carried out to the etch state of pipeline, with
Just suitable Process cor- rosion- protection is chosen, extends production equipment or the service life of pipeline, reduces production cost, improves economic effect
Benefit.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram stretched in the utility model embodiment without three points of cage modle plate hanger boxes of protective shell.
Fig. 2 is the structural representation of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device in the utility model embodiment
Figure.
Fig. 3 is that high sulfur Gas Fields gathering line corrosion monitoring prior-warning device progress lacing film picks and places in the utility model embodiment
Schematic diagram.
Fig. 4 is corrosion monitoring prior-warning device " A-A " view in the utility model embodiment.
Fig. 5 is the left view of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device in the utility model embodiment.
Fig. 6 is the stretching, extension schematic diagram of cage modle plate hanger box in the utility model embodiment.
Fig. 7 is the stretching, extension schematic diagram for installing a cage modle plate hanger box in the utility model embodiment in pipeline.
Fig. 8 is the stretching, extension schematic diagram for installing two cage modle plate hanger boxes in the utility model embodiment in pipeline.
Fig. 9 is the partial structurtes signal of corrosion monitoring prior-warning device before corrosion coupon failure in the utility model embodiment
Figure.
Figure 10 is the partial structurtes signal of corrosion coupon failure post-etching monitoring warning device in the utility model embodiment
Figure.
Figure 11 is the principle schematic of corrosion monitoring circuit in the utility model embodiment.
Figure 12 is the schematic diagram of on-line corrosion monitoring module in the utility model embodiment.
Figure 13 is the structure diagram of residual gas absorption plant in the utility model embodiment.
Figure 14 is the top view that two points of cage modle plate hanger boxes are closed in the utility model embodiment.
Figure 15 is the top view of two points of cage modle plate hanger box stretching, extensions in the utility model embodiment.
Figure 16 is the top view that three points of cage modle plate hanger boxes are closed in the utility model embodiment.
Figure 17 is the top view of three points of cage modle plate hanger box stretching, extensions in the utility model embodiment.
In figure：1st, device cylinder；11st, upper chamber；12nd, lower chambers；111st, intake valve；121st, air bleeding valve；2nd, lacing film picks and places
Mechanism；201st, handwheel is rotated；202nd, driving shaft；203rd, the first rotation axis；204th, the second rotation axis；205th, driving wheel；206th,
One driven wheel；207th, the second driven wheel；208th, driving belt；209th, limited block；210th, transmission case；211st, conveyor track；212、
Spacing ring；3rd, residual gas absorption plant；301st, breather check valve；302nd, exhaust check valve；303rd, gas-guide tube；304th, lye；
305th, mist silk screen is caught；306th, activated carbon；307th, silica gel；308th, reversing handle；309th, the first air inlet；310th, the second air inlet；
31st, balance cylinder；311st, balanced plug；312nd, weight；313rd, it is pressurized column；314th, baffle ring；4th, extension means；401st, signal transmission
Line；402nd, turning handle；403rd, down-pressed pole；404th, O-ring seal；405th, fixed plug；406th, joining beam is pushed；407th, hanging rod；408th, hold
Fitting；409th, connection ring on first；410th, upper connecting rod；411st, U-shaped spring；412nd, lower link；413rd, first time connection ring；
414th, fixed disk；415th, connection ring on second；416th, second time connection ring；5th, cage modle plate hanger box；501st, top bottom-disc；502nd, go to the bottom
Disk；503rd, connecting pole；504th, protection cap；505th, lacing film；506th, upper pillar stand；507th, lower pillar stand；508th, spring；509th, retaining ring；
510th, gasket；511st, connecting rod；512nd, nut；513rd, slider；514th, swept resistance case；6th, flange；7th, mounting base；71st, unscrew
Hollow plug valve；72nd, balanced valve；8th, production flow line.
Specific embodiment
Specific embodiment of the present utility model is described below in conjunction with the accompanying drawings, it is new to be better understood from this practicality
Type.
Embodiment
In the present embodiment, as shown in Figure 1, corrosion monitoring early warning lacing film is the cylinder lacing film of TBE (threaded both ends), each cage
Type plate hanger box chooses the corrosion monitoring early warning lacing film size of 8~12 kinds of different sizes, and calculation formula is：
Wherein：dkFor corrosion coupon diameter, mm；K numbers for corrosion coupon；Use surpluses or remaining surplus of the C for pipeline,
mm；N is the lacing film number of installation.
Corrosion coupon installation method：The corrosion monitoring early warning lacing film 505 of different size is connected through a screw thread mode successively
It is installed in cage modle plate hanger box 5, chooses the spring 508 of identical quantity, natural elongation is different, according to spring 508 certainly
Right elongation is sequentially increased corresponding lacing film specification, and gradually increased order is installed on upper disk 501 and is compressed to sustained height successively
It is horizontal.
Fig. 2 be high sulfur Gas Fields gathering line corrosion monitoring prior-warning device structure diagram, corrosion monitoring prior-warning device
Including device cylinder 1, lacing film fetching device 2, residual gas absorption plant 3, extension means 4, cage modle plate hanger box 5, flange 6, peace
Fill seat 7, production flow line 8.
Described device cylinder 1 is connected by flange 6 with mounting base 7, and the mounting base 7 is welded on production flow line 8, described
Lacing film fetching device 2 is mounted in device cylinder 1, and by 4 auxiliary positioning of extension means, the residual gas absorption plant 3 is logical
It crosses connection flexible pipe to be connected with device cylinder 1, the extension means 4 are connected with cage modle plate hanger box 5.
Launch lacing film：First mounting base 7 is installed on production flow line 8, then the device cylinder that corrosion coupon has been installed
Body 1 is installed on by flange 6 in mounting base 7, is opened balanced valve 72, is unscrewed hollow plug valve 71, rotates lacing film pick-and-place machine successively
Structure 2, extension means 4, cage modle plate hanger box 5 is placed in production flow line 8.
As shown in figure 3, it is that high sulfur Gas Fields gathering line corrosion monitoring prior-warning device carries out in the utility model embodiment
The schematic diagram that lacing film picks and places, Fig. 4 are device " A-A " views, and Fig. 5 is the left view of the device, rotate lower chambers handwheel
201, driving wheel 205 respectively with the first driven wheel 206, the engaged transmission of the second driven wheel 207, the first rotation axis 203 and second turn
Moving axis 204 drives transmission case 210 to be moved downward along drive rail 211 by driving belt 208, and cage modle plate hanger box 5 is positioned over
In production flow line 8.As shown in the figure, lacing film fetching device 2 includes upper transmission mechanism and lower transmission mechanism, upper and lower transmission mechanism tool
There is identical structure.
Upper transmission mechanism includes handwheel 201, driving shaft 202, the first rotation axis 203, the second rotation axis 204, driving wheel
205th, the first driven wheel 206, the second driven wheel 207, driving belt 208, limited block 209, transmission case 210, conveyor track 211,
Spacing ring 212；
The rotation handwheel 201 is connected with driving shaft 202, and the driving wheel 205 is installed on driving shaft 202, with first
Driven wheel 206, the second driven wheel 207 engage, and first driven wheel 206, the second driven wheel 207 are separately mounted to the first rotation
On axis 203, the second rotation axis 204, first rotation axis 203, the second rotation axis 204 are equipped with driving belt 208 and /V
Block 209, the driving belt 208 are connected with transmission case 210, and lower bottom part is equipped with venthole on the transmission case, and 210 through being driven rail
Road 211 moves to spacing ring 212, and joint extension means 4 carry out locking positioning.
Fig. 6 is the schematic diagram that cage modle plate hanger box is stretched in the utility model embodiment.Extension means 4 are passed including signal
Defeated line 401, turning handle 402, down-pressed pole 403, O-ring seal 404, fixed plug 405, pushing joining beam 406, hanging rod 407, supporting
408th, connection ring 409, upper connecting rod 410,411 lower link 412 of U-shaped spring, first time connection ring 413, fixed disk 414 on first；
Signal transmssion line 401 is encapsulated in down-pressed pole 403, fixed plug 405, pushes joining beam 406, in upper connecting rod 410, rotates and turns
Handle 402, down-pressed pole 403 are moved downward at fixed plug 405, and signal transmssion line 401 is in closure state at this time, is rotated further hand
Handle 402, down-pressed pole 403 promote fixed plug 405 to move down, and the pushing joining beam 406 being connected with fixed plug 405 passes through supporting
408 pairs of U-shaped springs 411 being connected on first between connection ring 409 and first time connection ring 413 are compressed, in connection first
The upper connecting rod 410 of connection ring 409 drives cage modle plate hanger box 5 in production pipe with being connected the lower link 412 of first time connection ring 413
It is stretched in line.Corrosion monitoring early warning terminates, and rotates backward turning handle 402, and down-pressed pole 403 moves up, U types spring 411 by
Gradually recover nature elongation state, connection ring 409 moves up on first be connected with U-shaped spring 411, connection ring in connection first
409 upper connecting rod 410 drives cage modle extension disk case 5 to be shunk.
Fig. 7 is the schematic diagram that DN80~DN200 pipelines install 1 cage modle plate hanger box in the utility model embodiment, described
Extension means 4 each 1 of symmetrical U-shaped spring is set；Fig. 8 is 2 cage modle plate hanger boxes of installation in more than DN200 pipelines
Schematic diagram, extension means 4 include connection ring on first, connection ring, first time connection ring, second time connection ring on second, and first
Upper connection ring 409 is connected with first time connection ring 413 by 4 U-shaped springs, connection ring 415 and second time connection ring on second
416 are connected by 2 U-shaped springs.
Fig. 9,10 are the partial structural diagram with failure post-etching monitoring warning device, cage before corrosion coupon fails respectively
Type plate hanger box 5 includes top bottom-disc 501, low bottom-disc 502, connecting pole 503, protection cap 504, lacing film 505, upper pillar stand 506, lower pillar stand
507th, spring 508, retaining ring 509, gasket 510, connecting rod 511, nut 512, slider 513, swept resistance case 514.Figure 11 is
The schematic diagram of corrosion monitoring circuit theory in the utility model embodiment before lacing film failure, accesses the slip of corrosion monitoring circuit
Resistance is in maximum, and after failing, slider position changes, and swept resistance resistance value reduces, and observation circuit electric current increases
Greatly, changed by circuital current before and after failure and carry out the continuous monitoring of lacing film average corrosion rate.
Fig. 9, corrosion coupon 505 do not fail, and slider is not subjected to displacement, and swept resistance resistance value is maximum, rotten
It is I to lose observation circuit electric current0；
Wherein：I0Observation circuit electric current before failing for lacing film, A；U is supply voltage, V；R0For fixed value resistance resistance value, Ω；
RiFor the maximum value of swept resistance i, Ω；N is swept resistance sum, and i numbers for swept resistance；
For a period of time post-etching monitoring and warning lacing film 505 corrosion failure occurs for Figure 10, is fixed on the spring of top bottom-disc 501
508 are recovered by compressive state to natural retracted position, and upper pillar stand 506 takeoffs upwards under the drive of spring 508, and commencing height is
The reduction length of spring, the connecting rod 511 being connected at this time with retaining ring 509 drive slider 513 to move up, and swept resistance resistance value subtracts
Small, observation circuit electric current increase, different size lacing film corrosion failure causes spring that different reduction lengths, corrosion monitoring electricity occurs
Road electric current is I；
Wherein：I for lacing film fail post-etching observation circuit electric current, A；L be swept resistance total length, mm；xiTo slide electricity
The effective length of resistance, mm,
xi=L-l
Wherein, l corresponds to the reduction length of spring 508 before failing for the lacing film 505 of generation corrosion failure, and mm is different
Specification lacing film occur corrosion failure before correspond to spring 508 setting height(from bottom) it is identical, the natural elongation difference of spring 508 causes to pacify
The reduction length of each spring 508 is different during dress, and different reduction lengths causes swept resistance change in resistance value after the failure of lacing film 505
It differs, changes observation circuit electric current；
At this point, the corrosion coupon size d of corrosion failure occurs：
The average corrosion rate v of corrosion coupon：
Wherein, v be lacing film corrosion rate, mm/a；D be lacing film diameter, mm；Δ t is the time interval that lacing film fails,
a；I1Observation circuit electric current before failing for lacing film, A；kiFor conversion coefficient；
Figure 12 is on-line corrosion monitoring module diagram in the utility model embodiment, and corrosion monitoring circuit is by corrosion coupon
Corrosion signal is converted to circuit current signal, and premenstrual storing is big, carries out data into intelligence instrument CPU processor after digital-to-analogue conversion
Processing and analysis, yard control system is transmitted to by wireless-transmission network by corrosion data.Using acoustooptic alarm system, foundation
The use surplus of pipeline or corrosion allowance C (fail to 4 kinds of etch states that corrosive pipeline thickness is C/4,2C/4,3C/4, C
Lacing film diameter d be equal to C/2, C, 3C/2,2C 4 kinds of etch states) carry out level Four early warning or to corrosive pipeline thickness for C/6,
(the lacing film diameter d to fail is equal to C/3,2C/3, C, 4C/3,5C/ to 6 kinds of etch states of 2C/6,3C/6,4C/6,5C/6, C
3rd, 6 kinds of etch states of 2C) carry out six grades of early warning.
After monitoring, extension means 4, lacing film fetching device 2 are rotated, cage modle plate hanger box 5 is taken out into production flow line 8, according to
Secondary to close hollow plug valve 71 and balanced valve 72, connection residual gas absorption plant 3 is opened positioned at device cylinder lower chambers 12
Air bleeding valve 121 purges the residual gas in device cylinder 1.
Figure 13 be the utility model embodiment in residual gas absorption plant structure diagram, residual gas absorption plant 3
Including breather check valve 301, exhaust check valve 302, gas-guide tube 303, lye 304, catch mist silk screen 305, activated carbon 306, silica gel
307th, reversing handle 308, the first air inlet 309, the second air inlet 310, balance cylinder 31；Balance cylinder 31 include balanced plug 311,
Weight 312, supercharging column 313, baffle ring 314；The balance pressure value of balance cylinder 31 is by increasing and decreasing the weight in balanced plug 311
312 are changed.The residual gas of device cylinder 1 absorbs dress by breather check valve 301 along gas-guide tube 303 into residual gas
3 are put, through lye 304, is caught after mist silk screen 305, activated carbon 306, silica gel 307 carry out absorption processing to residual gas by the second air inlet
Mouth 310 is into balance cylinder 31 and balanced plug 311 is promoted to move up, when balanced plug 311 stops mobile or is moved under baffle ring 314
Side, pulls out reversing handle 308, and the first air inlet 309 is opened, and the second air inlet 310 is closed, and pushes supercharging column 313, gas
By balance cylinder 31 through exhaust check valve 302 into device cylinder 1, the residual gas of device cylinder 1 is through breather check valve 301 along leading
Tracheae 303 enter absorption plant 3, through lye 304, catch mist silk screen 305, activated carbon 306,307 absorption of silica gel processing after through first
Air inlet 309 is discharged, the residual gas purging of finishing device cylinder 1.
Figure 14,15 are that two points of cage modle plate hanger boxes are in closure state and extended configuration in the utility model embodiment respectively
Top plan view, Figure 16,17 are the top plan view that three points of cage modle plate hanger boxes are in closure state and extended configuration respectively, two points
Cage modle plate hanger box installs 8 kinds of different size lacing films, and 4 grades for high sulfur Gas Fields pipeline corrode early warning, three points of cage modle plate hanger boxes
12 kinds of different size lacing films are installed, 6 grades for high sulfur Gas Fields pipeline corrode early warning.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (8)
1. a kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device, it is characterised in that：Including device cylinder (1), lacing film
Fetching device (2), residual gas absorption plant (3), extension means (4), cage modle plate hanger box (5), flange (6), mounting base (7),
Production flow line (8)；
Described device cylinder (1) is connected by flange (6) with mounting base (7), and the mounting base (7) is welded on production flow line (8)
On, the lacing film fetching device (2) is mounted in device cylinder (1), and auxiliary positioning is carried out by extension means (4), described residual
Remaining gas absorbing device (3) is connected by connection flexible pipe with device cylinder (1), the extension means (4) and cage modle plate hanger box (5)
Connection.
2. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 1, it is characterised in that：Lacing film takes
Laying mechanism (2) includes upper and lower transmission mechanism, and upper transmission mechanism has identical structure with lower transmission mechanism；
Upper and lower transmission mechanism includes rotating handwheel (201), driving shaft (202), the first rotation axis (203), the second rotation axis
(204), driving wheel (205), the first driven wheel (206), the second driven wheel (207), driving belt (208), limited block (209),
Transmission case (210), conveyor track (211), spacing ring (212)；
The rotation handwheel (201) is connected with driving shaft (202), and the driving wheel (205) is mounted on driving shaft (202), with
First driven wheel (206), the second driven wheel (207) engagement, first driven wheel (206), the second driven wheel (207) are pacified respectively
In the first rotation axis (203), the second rotation axis (204), first rotation axis (203), the second rotation axis are set on (204)
There are driving belt (208) and limited block (209), the limited block (209) limits the offset of driving belt (208) on the rotating shaft
Amount, the driving belt (208) are connected with transmission case (210), and lower bottom part is equipped with venthole on the transmission case (210), through passing
Dynamic rail road (211) moves to spacing ring (212), and spacing ring (212) the cooperation extension means (4) carry out transmission case (210)
It is locked.
3. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 1, it is characterised in that：Residual gas
Body absorption plant (3) includes breather check valve (301), exhaust check valve (302), gas-guide tube (303), lye (304), catches mist silk
Net (305), activated carbon (306), silica gel (307), reversing handle (308), the first air inlet (309), the second air inlet (310),
Balance cylinder (31)；
The balance cylinder (31) includes balanced plug (311), weight (312), supercharging column (313), baffle ring (314)；Balance cylinder
(31) balance pressure value is changed by the weight (312) increased and decreased in balanced plug (311).
4. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 1, it is characterised in that：Stretching machine
Structure (4) include signal transmssion line (401), turning handle (402), down-pressed pole (403), O-ring seal (404), fixed plug (405), under
Press joining beam (406), hanging rod (407), supporting (408), connection ring (409) on first, upper connecting rod (410), U-shaped spring (411),
Lower link (412), first time connection ring (413), fixed disk (414)；
The signal transmssion line (401) is encapsulated in down-pressed pole (403), fixed plug (405), pushes joining beam (406), upper connecting rod
(410) in, the down-pressed pole (403) is equipped with turning handle (402), passes through upper and lower two O-ring seals (404) two way seal, institute
It states fixed plug (405) to be located in transmission case (210), by down-pressed pole (403) auxiliary positioning, the pushing joining beam (406) is installed
On fixed plug (405), it is connected with supporting (408), the supporting (408) is connected with connection ring on first (409), described
Connection ring (409) is connected with first time connection ring (413) by U-shaped spring (411) on first, connection ring on described first
(409), first time connection ring (413) is connected respectively by upper connecting rod (410), lower link (412) with cage modle plate hanger box (5), institute
It states first time connection ring (413) to be connected with fixed disk (414), the supporting (408), on first under connection ring (409), first
Connection ring (413), fixed disk (414) are mounted on hanging rod (407), and described hanging rod (407) one end is fixed on transmission case (210)
It is interior.
5. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 4, it is characterised in that：DN80~
DN200 pipelines, extension means (4) include connection ring (409) and first time connection ring (413) on first, connection ring on first
(409) it is connected with first time connection ring (413) by 2 U-shaped springs (411)；More than DN200 pipelines, extension means (4) include
Connection ring (409) on first, connection ring (415), first time connection ring (413), second time connection ring (416) on second, first
Upper connection ring (409) is connected with first time connection ring (413) by 4 U-shaped springs, on second under connection ring (415) and second
Connection ring (416) is connected by 2 U-shaped springs, and each U-shaped spring is protected using polytetrafluoroethylene material.
6. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 1, it is characterised in that：Cage modle is hung
Piece case (5) includes top bottom-disc (501), low bottom-disc (502), connecting pole (503), protection cap (504), lacing film (505), upper pillar stand
(506), lower pillar stand (507), spring (508), retaining ring (509), gasket (510), connecting rod (511), nut (512), slider
(513), swept resistance case (514)；
The top bottom-disc (501) is connected with low bottom-disc (502) by connecting pole (503), and the top bottom-disc (501) is equipped with protection cap
(504), the low bottom-disc (502) is welded with lower pillar stand (507), the upper pillar stand (506), lower pillar stand (507) and lacing film (505)
It is connected through a screw thread, the upper pillar stand (506) is connected through a screw thread through top bottom-disc (501) with retaining ring (509), the spring
(508) upper pillar stand (506) is placed on, top bottom-disc (501) is fixed in one end, and the other end is compressed by retaining ring (509) to be fixed, the lock
Tight ring (509) is equipped with connecting rod (511), is fixed by gasket (510), nut (512), connecting rod (511) end is located at
Slider (513) lower end, the slider (513) are connected with swept resistance case (514).
7. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 6, it is characterised in that：Cage modle is hung
Piece case (5) can hang the corrosion coupon of 8~12 kinds of different sizes.
8. high sulfur Gas Fields gathering line corrosion monitoring prior-warning device according to claim 7, it is characterised in that：The extension
Piece (505) is the cylinder lacing film of TBE (threaded both ends), a diameter of：
Wherein：dkFor corrosion coupon diameter, mm；K numbers for corrosion coupon；Use surpluses or remaining surplus of the C for pipeline, mm；n
For the lacing film number of installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721174428.3U CN207379962U (en) | 2017-09-14 | 2017-09-14 | A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721174428.3U CN207379962U (en) | 2017-09-14 | 2017-09-14 | A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207379962U true CN207379962U (en) | 2018-05-18 |
Family
ID=62340901
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|---|---|---|---|
| CN201721174428.3U Expired - Fee Related CN207379962U (en) | 2017-09-14 | 2017-09-14 | A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449800A (en) * | 2017-09-14 | 2017-12-08 | 西南石油大学 | A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device and method |
| CN109269969A (en) * | 2018-10-08 | 2019-01-25 | 烟台大学 | Portable coastal engineering facility on-line corrosion monitoring and prior-warning device |
-
2017
- 2017-09-14 CN CN201721174428.3U patent/CN207379962U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449800A (en) * | 2017-09-14 | 2017-12-08 | 西南石油大学 | A kind of high sulfur Gas Fields gathering line corrosion monitoring prior-warning device and method |
| CN109269969A (en) * | 2018-10-08 | 2019-01-25 | 烟台大学 | Portable coastal engineering facility on-line corrosion monitoring and prior-warning device |
| CN109269969B (en) * | 2018-10-08 | 2023-12-15 | 烟台大学 | Portable coast engineering facility corrosion on-line monitoring and early warning device |
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