CN107817072A - A kind of high-voltage commutation valve valve tower leakage inspector - Google Patents
A kind of high-voltage commutation valve valve tower leakage inspector Download PDFInfo
- Publication number
- CN107817072A CN107817072A CN201610821174.3A CN201610821174A CN107817072A CN 107817072 A CN107817072 A CN 107817072A CN 201610821174 A CN201610821174 A CN 201610821174A CN 107817072 A CN107817072 A CN 107817072A
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- China
- Prior art keywords
- light blocking
- optical signal
- rotary shaft
- float
- leakage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Examining Or Testing Airtightness (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention provides a kind of high-voltage commutation valve valve tower leakage inspector, the leakage inspector is located at converter valve tower bottom, include collection leakage box, float, connecting rod, rotary shaft, frame, light blocking mechanism, optical signal detection mechanism, it is characterized in that, float is placed in inside collection leakage box, and by connecting rod with rotating axis connection；Light blocking mechanism, optical signal detection mechanism, rotary shaft are located in same frame, and float floats drives light blocking mechanism to be relatively rotated with optical signal detection mechanism by connecting rod and rotary shaft.Compared with the existing leak hunting technology using buoyancy, present apparatus water route and light path separation, simple in construction, cost is low, reliability is high.
Description
Technical field
The present invention relates to the leak water detdction technology of a kind of leakage inspector, more particularly to converter valve valve tower.
Background technology
Leak water detdction is auxiliary equipment important in DC converter valve system, for monitoring the leak of converter valve cooling water channel
Situation.According to the order of severity of leak, to the signal for protecting monitoring system to send the different stages such as alarm, tripping operation.In converter valve
Electromagnetic environment is complex, therefore it is preferred mode to carry out leak water detdction using jamproof optical signal.
Existing leakage inspector mainly has three classes, is utilized respectively the characteristic of the refractive index of water, buoyancy or gravity.Utilize
The method of the refractive index of water can specifically use the optical signal in straight line that both sides are horizontally or diagonally placed in collection leakage device to send out
Emitter and receiver, when leak water level rising, due to the refractive index of water, the light path of original straightline propagation will be changed, believe light
It number can not enter receiver from transmitter again, action signal be formed, such as patent publication No. CN204881995U.Light can also be believed
Number receiver and transmitter are placed on side, and light path is formed by the way of level crossing reflection.But this leakage inspector,
Because optical signal will pass through water route, cause optical signal attenuation larger, very high is required to transmission power, equipment life is not grown；The same time
The passage of signal passes through the wall of collection leakage device, dust under complicated environmental condition, it is water stain easily influence normal photo-signal channel,
Cause malfunction.Mostly at present using the method for buoyancy is to be positioned over using optical signal receiver and transmitter on the float of collection leakage device
Side, in float floating-upward process, the passage of the vertical connected light blocking means block optical signal of float, such as patent publication No.
CN102519689A.The defects of this kind of device is that for optical signal transceiver in collection leakage device, the environmental condition of optical channel is poor, long
Phase, reliable rate was low；To ensure that float can smoothly move up and down, vertical connected light blocking mechanism needs in optical signal transceiver side
There is certain scope of activities, cause the in larger distance of optical signal detecting passage, equally because light decay consumption needs larger transmitting work(
Rate, cause equipment longtime running reliability low；Because the structure of the vertical Suo Lian light blockings mechanism of float limits, in no leak or leakage
When water is seldom, float is close to collection leakage cassette bottom portion, and dirt can cause float and bottom adhesion, influence float floating.Utilize gravity
Typical method is tipping bucket method, and after leak largely enters tipping bucket of the other end equipped with counterweight block, tipping bucket, which stirs, outwells leak, makes institute
The optical channel of optical signal transceiver in rotary shaft even is blocked once, and leak feelings are calculated by the blocking frequency of optical signal
Condition, such as patent publication No. CN103033323A.The defects of device and method is that the rolling that tipping bucket is kept in the center after tumbling is visibly moved
Easily cause the erroneous judgement of water leakage degree；Rotary shaft side undertakes larger weight, after longtime running, the continuous increase meeting of rotational resistance
Leak water detdction situation is influenceed, this countershaft manufacturing process proposes strict requirements, causes installation cost high, complicated.
The content of the invention
The purpose of the present invention is：Overcome present in prior art that optical channel environmental condition is poor, light decay rate is big, device knot
The problem of structure is complicated, longtime running reliability is low, there is provided a kind of water route and light path separation, simple in construction, cost is low, reliability is high
Water leakage detection device of valve tower of converter valve.
Concrete scheme is as follows, and a kind of high-voltage commutation valve valve tower leakage inspector, the leakage inspector is located at the change of current
Valve valve tower bottom, comprising collection leakage box, float, connecting rod, rotary shaft, light blocking mechanism, optical signal detection mechanism, it is characterized in that, float
It is placed in inside collection leakage box, and by connecting rod with rotating axis connection；Light blocking mechanism, optical signal detection mechanism, rotary shaft are positioned at same
In frame；Fluctuating for float drives light blocking mechanism that relative turn occurs with optical signal detection mechanism by connecting rod and rotary shaft
It is dynamic.
Preferably, the collection leakage box is provided with the apopore of bottom and layered arrangement, and gap is provided with the top of the collection leakage box；
Apopore can manually be blocked or manually opened.
Preferably, the float is inclined in inside the collection leakage box with the connecting rod, and the collection leakage box inwall is provided with connecting rod
Take and put support.
Preferably, the optical signal detection mechanism includes one group of optical fiber interface and photo-signal channel, optical fiber interface and light letter
Number passage is on the same line；The number of optical signal detection mechanism can arbitrary disposition.
Preferably, the light blocking is in-house is provided with light hole, and the size shape and number of light hole can be arbitrarily devised.
A kind of preferable mode is that the light blocking mechanism positions float on the rotary shaft axis body or its axially-extending line
Fluctuating for son drives the light blocking mechanism to make synchronous rotation motion with rotary shaft；The number of light blocking mechanism can arbitrary disposition.
The optical signal detection mechanism is placed in the both sides of rotary shaft, the optical fiber interface and photo-signal channel of the optical signal detection mechanism with
Light hole position correspondence in the light blocking mechanism.
It is another it is preferable that, the light blocking mechanism is connected to the side of the rotary shaft, and fluctuating for float makes
The light blocking mechanism does synchronous rotary motion around the rotary shaft；The number of light blocking mechanism can arbitrary disposition.The optical signal
Testing agency is placed in light blocking mechanism homonymy, optical fiber interface and photo-signal channel and the resistance of the optical signal detection mechanism
Light hole position correspondence on ray machine structure.In light blocking mechanism and optical signal detection mechanism frame, there is seal closure by light blocking mechanism
Enter with optical signal detection mechanism cover.
Using apparatus and method of the present invention, compared with prior art, optical signal detection mechanism is isolated with collection leakage box
Improve the reliability of detection；Have benefited from the structure of uniqueness, the distance of photo-signal channel is reduced, and light decay consumption reduces, increase
Life-span of optical signal transceiver；Float is connected by connecting rod with rotary shaft, and float need not directly bear upper end light blocking mechanism
Gravity, reduce the limitation in material, shape and volume, improve the service life and reliability of mechanism；Float is not leaking
When water or seldom leak, collection leakage cassette bottom portion will not be close to, the adhesion of float caused by dirt and bottom is avoided, influence on float
It is floating；Rotary shaft is not subjected to larger stress, and mechanical loss is few, and design and processes cost is low.
Brief description of the drawings
Fig. 1 is a kind of side view of high-voltage commutation valve valve tower leakage inspector example.
Fig. 2 is a kind of top view of high-voltage commutation valve valve tower leakage inspector example.
Fig. 3 is a kind of front view of high-voltage commutation valve valve tower leakage inspector example.
Fig. 4 is a kind of close-up schematic view of the fiber laser arrays mechanism of high-voltage commutation valve valve tower leakage inspector example.
Fig. 5 is the side view of another high-voltage commutation valve valve tower leakage inspector example.
Fig. 6 is the top view (being free of seal closure) of another high-voltage commutation valve valve tower leakage inspector example.
Fig. 7 is the front view of another high-voltage commutation valve valve tower leakage inspector example.
Fig. 8 is the close-up schematic view of the light blocking mechanism of another high-voltage commutation valve valve tower leakage inspector example.
Label 1 is collection leakage box in figure, and label 2 is bottom apopore, and label 3 is side apopore, and label 4 is side spilling water
Baffle plate, label 5 are float, and label 6 is connecting rod, and label 7 is taken for connecting rod puts support, and label 8 is rotary shaft, and label 9 connects for optical fiber
Mouthful, label 10 is the frame with optical signal detection mechanism, and label 11 is light blocking mechanism, and label 12 is light hole, and label 13 is
The frame with optical signal detection mechanism of another example, label 14 are the light blocking mechanism of another example, and label 15 is another reality
The light hole of example, label 16 are the seal closure of another example.
Embodiment
With reference to a kind of specific embodiments and the drawings to the technical scheme carry out intactly, be explicitly described, but we
The embodiment not limited to this of case.
The embodiment is arranged on the side-lower of cylinder manifold one on converter valve tower bottom radome, and cylinder manifold passes through certain inclination angle
Drainage design, it is ensured that the leakage of converter valve cooling water can all flow into the embodiment collection leakage box in.As shown in Figures 1 to 4, collect
Installation pedestal is arranged at the top of leakage box 1, and bottom and rear side are arcuate structure, and front side is vertical stratification, are taken provided with connecting rod and put support 7, left
The right height of both sides spilling water baffle plate 4 is less than installation pedestal, forms spilling water outlet, generally an arc container moulding.Collection leakage box 1 bottom
Portion is provided with an apopore 2, and another apopore 3 is opened above cambered surface.Float 5 and its connecting rod 6 are inclined in collection leakage box 1；Connecting rod 6 is another
One end is rigidly connected on one end of the collection leakage rotary-top axle 8 of box 1.The other end of rotary shaft 8, which is put in, closed carries optical signal
In the frame 10 of testing agency, the body of rotary shaft 8 is equipped with light blocking mechanism 11, and it can be one of rotary shaft body construction
Point or other axially extending mechanisms.Two light holes 12 not of uniform size are provided with inside the light blocking mechanism 11, it is corresponding
The photo-signal channel of two road optical fiber interfaces 9 composition, the inclined design of light hole 12, has improved rotational angle utilization rate.Box 1 is leaked in collection
Under anhydrous condition, float 6 is placed in bottom, and the center line and two road optical fiber interfaces 9 of two light holes 12 in rotary shaft 8 are one
On bar straight line, and light can be from optical fiber interface 9, the straight-line pass of light hole 12.
The course of work of the example is as follows, and no leak is entered fashionable, and connecting rod 6 and float 5 take the connecting rod for putting collection leakage box inwall
To take and put on support 7, float 5 does not contact with collection leakage box 1 bottom, in case long-term place viscous glutinous bottom.Now, the angle of rotary shaft makes
The light of optical signal detection mechanism forms path by light hole 12.In the case where collection leakage box 1 apopore 2,3 manually opens,
When leak flows into, if water leakage is less than flow corresponding to bottom apopore 2, leak will be discharged all from bottom apopore 2, will not
Float 5 is set to float.When water leakage is more than flow corresponding to bottom apopore 2, the collection leakage water level of box 1 is gradually increasing, and drives float 5
Float, the rotary shaft 8 that connecting rod 6 connects starts to produce the anglec of rotation, in this process, the less thang-kng of the inner opening of light blocking mechanism 11
Hole blocks a photo-signal channel first, produces alarm signal；If leak flow is constant, the now collection leakage water level of box 1 continues to rise,
Reach the apopore 3 on alarm water level；If leak flow will stop no more than the water flow sum of two apopores 2,3, water level
Stay in this；If flow is more than the water flow sum of two apopores 2,3, water level will continue to rise, the anglec of rotation of rotary shaft 8
Continue to increase, until light blocking mechanism 11 blocks the photo-signal channel that larger light hole is formed that is open, produce trip signal.This
When such as water level continue to rise, then flowed out by spilling water baffle plate.Possibly it can not be kept off in time from spilling water in view of excessive leak flow
Discharged at plate 4, flood the optical signal detection mechanism of the place height of rotary shaft 8, equipment safety is impacted, can be by rotary shaft
8 installation it is higher.
This is the method that level of signal is determined using leak flow, and another way is will all to be reserved in collection leakage box 1
Water hole 2 and 3 is manually blocked, and cooling water leakage is completely collected in collection leakage box 1, and the water level of now leakage is that leak total amount is directly determined
Determine the angle of the rotation of rotary shaft 8, alarm, the break-make of tripping operation optical signal are related to leak total amount.The third mode is only to block collection
The leakage bottom apopore 2 of box 1 or the apopore 3 for only blocking alarm water level top, it is alarm and leak respectively now to detect logic
Total amount is related, tripping operation is related to leak flow；Alarm is related to leak flow, tripping operation is related with leak total amount.
In another example, as shown in Fig. 5 to 8, light blocking mechanism 14 and frame 13 with optical signal detection mechanism can
To make the light blocking mechanism 14 do rotation in opposite direction installed in the opposite side of connecting rod 6 and rotary shaft 8, fluctuating for float 5
Motion.Light blocking mechanism 14 is light laminated using one, is provided with the light hole 15 that two arc length differ, two road optical fiber interfaces 9 above
Respectively two photo-signal channels are formed with the light hole 15.Whole light blocking mechanism, optical signal detection mechanism quilt cover enter a sealing
In cover 16, water proof and dust proof effect is played.Float 5 floats because leakage flows into, and light blocking mechanism 14 rotates with rotary shaft 8, rotates to
During ad-hoc location, light blocking mechanism 14 starts to block the photo-signal channel of short light hole, at this moment produces alarm signal；When float 5 connects
When floating to higher ad-hoc location, light blocking mechanism 14 starts to block the photo-signal channel of long light hole, at this moment produces tripping operation
Signal, so as to realize the detection of water leakage situation.
In other instances, the shape of collection leakage box is not limited to the shape of examples detailed above.
In other instances, light blocking mechanism and its light hole are not limited to the shape of examples detailed above.
In other instances, optical signal detection mechanism is not limited with the light hole of corresponding light blocking mechanism by quantity.
In other instances, the flexible connection that float can have one section with connecting rod carries out transition.
Believed it should be noted that the core of this programme is float by connecting rod with rotating axis connection, light blocking mechanism, light
Number testing agency, rotary shaft are located in same frame；Float fluctuate by connecting rod and rotary shaft drive light blocking mechanism with
Relative motion occurs for optical signal detection mechanism, any not created based on this structure so as to produce the opening of light, interrupt signal
Property work under the premise of the other embodiment that is obtained, all in the application protection domain of this programme.
Claims (10)
1. a kind of high-voltage commutation valve valve tower leakage inspector, the leakage inspector are located at converter valve tower bottom, it is special
Sign is：Include collection leakage box, float, connecting rod, rotary shaft, light blocking mechanism, optical signal detection mechanism；Float is placed in collection leakage box
Portion, and by connecting rod with rotating axis connection；Light blocking mechanism, optical signal detection mechanism, rotary shaft are located in same frame；Float
Fluctuate and drive light blocking mechanism to be relatively rotated with optical signal detection mechanism by connecting rod and rotary shaft.
2. a kind of high-voltage commutation valve valve tower leakage inspector as claimed in claim 1, it is characterised in that the collection leakage box is set
There is the apopore of bottom and layered arrangement, gap is provided with the top of the collection leakage box；Apopore can manually be blocked or manually opened
Put.
3. a kind of high-voltage commutation valve valve tower leakage inspector as claimed in claim 1, it is characterised in that the float and institute
State connecting rod to be inclined in inside the collection leakage box, the collection leakage box inwall is taken provided with connecting rod puts support.
A kind of 4. high-voltage commutation valve valve tower leakage inspector as claimed in claim 1, it is characterised in that the optical signal inspection
Surveying mechanism includes at least one set of optical fiber interface and photo-signal channel, and optical fiber interface and photo-signal channel are on the same line.
A kind of 5. high-voltage commutation valve valve tower leakage inspector as claimed in claim 1, it is characterised in that the light blocking mechanism
Inside is provided with least one light hole.
A kind of 6. high-voltage commutation valve valve tower leakage inspector as claimed in claims 4 and 5, it is characterised in that the light blocking machine
Structure is placed on the rotary shaft axis body or its axially-extending line, and fluctuating for float drives the light blocking mechanism and rotary shaft
Make synchronous rotation motion.
A kind of 7. high-voltage commutation valve valve tower leakage inspector as claimed in claim 6, it is characterised in that the optical signal inspection
Survey the both sides that mechanism is placed in rotary shaft, the optical fiber interface and photo-signal channel of the optical signal detection mechanism and the light blocking mechanism
On light hole position correspondence.
A kind of 8. high-voltage commutation valve valve tower leakage inspector as claimed in claims 4 and 5, it is characterised in that the light blocking machine
Structure is connected to the side of the rotary shaft, and fluctuating for float makes the light blocking mechanism do synchronous rotation around the rotary shaft
Motion.
A kind of 9. high-voltage commutation valve valve tower leakage inspector as claimed in claim 8, it is characterised in that the optical signal inspection
Survey mechanism and be placed in light blocking mechanism homonymy, optical fiber interface and photo-signal channel and the light blocking of the optical signal detection mechanism
Light hole position correspondence in mechanism.
A kind of 10. high-voltage commutation valve valve tower leakage inspector as claimed in claim 9, it is characterised in that in light blocking mechanism and
In optical signal detection mechanism frame, there is seal closure to enter light blocking mechanism and optical signal detection mechanism cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821174.3A CN107817072A (en) | 2016-09-13 | 2016-09-13 | A kind of high-voltage commutation valve valve tower leakage inspector |
| PCT/CN2017/101481 WO2018050057A1 (en) | 2016-09-13 | 2017-09-13 | Device for detecting water leakage of valve tower of high-pressure converter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821174.3A CN107817072A (en) | 2016-09-13 | 2016-09-13 | A kind of high-voltage commutation valve valve tower leakage inspector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107817072A true CN107817072A (en) | 2018-03-20 |
Family
ID=61601457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610821174.3A Pending CN107817072A (en) | 2016-09-13 | 2016-09-13 | A kind of high-voltage commutation valve valve tower leakage inspector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107817072A (en) |
| WO (1) | WO2018050057A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801562A (en) * | 2018-03-31 | 2018-11-13 | 特变电工新疆新能源股份有限公司 | A kind of flexible direct current transmission converter valve valve tower leakage inspector and method |
| CN112054654A (en) * | 2020-08-18 | 2020-12-08 | 许继电气股份有限公司 | Water leakage prevention device for marine flexible straight converter valve tower |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519065A (en) * | 2018-04-18 | 2018-09-11 | 红云红河烟草(集团)有限责任公司 | A kind of differential optical fiber Bragg gratings obliquity sensor and its application method |
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| CN105466650A (en) * | 2014-09-28 | 2016-04-06 | 国家电网公司 | System for monitoring DC converter valve water leakage |
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| CN206095529U (en) * | 2016-09-13 | 2017-04-12 | 南京南瑞继保电气有限公司 | High pressure change of current valve tower water leakage detection device |
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- 2016-09-13 CN CN201610821174.3A patent/CN107817072A/en active Pending
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| JPH0943089A (en) * | 1995-07-27 | 1997-02-14 | Mitsubishi Electric Corp | Water leak detector |
| CN201569553U (en) * | 2009-11-27 | 2010-09-01 | 中国电力科学研究院 | Water leakage monitoring device of direct current converter valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801562A (en) * | 2018-03-31 | 2018-11-13 | 特变电工新疆新能源股份有限公司 | A kind of flexible direct current transmission converter valve valve tower leakage inspector and method |
| CN108801562B (en) * | 2018-03-31 | 2024-05-17 | 特变电工新疆新能源股份有限公司 | Flexible direct-current transmission converter valve tower water leakage detection device and method |
| CN112054654A (en) * | 2020-08-18 | 2020-12-08 | 许继电气股份有限公司 | Water leakage prevention device for marine flexible straight converter valve tower |
| CN112054654B (en) * | 2020-08-18 | 2022-02-18 | 许继电气股份有限公司 | Water leakage prevention device for marine flexible straight converter valve tower |
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| Publication number | Publication date |
|---|---|
| WO2018050057A1 (en) | 2018-03-22 |
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