CN207591384U - A kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment - Google Patents
A kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment Download PDFInfo
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- CN207591384U CN207591384U CN201721689284.5U CN201721689284U CN207591384U CN 207591384 U CN207591384 U CN 207591384U CN 201721689284 U CN201721689284 U CN 201721689284U CN 207591384 U CN207591384 U CN 207591384U
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- filter
- major cycle
- high voltage
- direct current
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Abstract
The utility model discloses a kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment, including main filter cylinder, filter core and differential pressure monitoring apparatus；One end of the main filter cylinder is equipped with access hole, the other end is equipped with the first communication port, end cap is equipped at the access hole, the top of the main filter cylinder lateral wall is equipped with the second communication port, lower section is equipped with sewage draining exit；The filter core is removably attached in the main filter cylinder, and the filter core includes several spaced apart steel wires and the fixed plate being fixed on the outside of the steel wire；The differential pressure monitoring apparatus is connected to by pipeline between second communication port and the first communication port.The major cycle filter of the utility model can be more conducive to clean up filter core, and reduce maintenance workload and working strength under the premise of certain filtering accuracy and filter element intensity is ensured.
Description
Technical field
The utility model is related to a kind of filter plants more particularly to a kind of high voltage direct current transmission converter valve that is used for cool down equipment
Major cycle filter.
Background technology
With the needs of transregional networking, high voltage direct current transmission project is increasing, and reliability has become the entire electricity of influence
An important factor for Force system safe operation.In recent years, a lot of stoppage in transit accidents occur for interregional grid straight-flow system, wherein because of converter valve
Single bipolar locking accident is more caused by cooling system failure.
Converter valve cooling system there are the problem of mainly have：Valve tower branch cooling water pipe blocks fever, interior cooling water screen
Blocking, cooling tower fouling etc. optimize if the major cycle filter in equipment can be cooled down to high voltage direct current transmission converter valve,
Better filter effect can be played, avoids the generation of clogging.
In the prior art, to meet larger effective filtration area requirement, high voltage direct current transmission converter valve cools down the master of equipment
Main filter cylinder size is larger in recursive filter, and the corresponding filter core dimensions selected is also larger, and maintenance personnel cleans dimension
When protecting filter core, because of the heavier inconvenient taking-up filter core of filter core and working strength is larger.Simultaneously to ensure the knot in big flow lower filter
Structure intensity, mostly using collapsible mesh grid filter core, this filter core easily causes impurity and is blocked between folded net, is unfavorable for cleaning.Cause
This is not easy to plug how filter core and is readily cleaned, and is the current technical issues that need to address.
Utility model content
The purpose of this utility model is in view of the problems of the existing technology to propose one kind for high voltage direct current transmission
Valve cools down the major cycle filter of equipment, and the major cycle filter is using several spaced apart steel wires and is fixed on the steel
The filter core that the fixed plate in silk outside is designed, can solve the problems, such as that the impurity being blocked between filter element is difficult cleaning of, together
When be designed with the structure that guide rod, handle etc. aid in main filter maintenance clean, it is possible to reduce the workload and work of maintenance personnel
Make intensity.
The technical solution of the utility model is：A kind of major cycle filtering for high voltage direct current transmission converter valve cooling equipment
Device, including main filter cylinder and filter core；One end of the main filter cylinder is equipped with access hole, the other end is equipped with the first circulation
Mouthful, end cap is equipped at the access hole, the top of the main filter cylinder lateral wall is equipped with the second communication port, lower section is equipped with blowdown
Mouthful；The filter core is removably attached in the main filter cylinder, the filter core include several spaced apart steel wires and
The fixed plate being fixed on the outside of the steel wire.
Further, the cross section of the steel wire is wedge shape, and the wedge-shaped apex angle of the steel wire is inwardly or outwardly.
Further, the steel wire is formed in round is axially spaced apart.
Further, the main filter cylinder and the end cap are connected through the hinge.
Further, guide rod is fixed in the main filter cylinder, and the guide rod is located at the underface of the filter core.
Further, it is fixed with flow distribution plate below the second communication port of the main filter inner barrel.
Preferably, normally-closed ball valve is equipped at the sewage draining exit, draining and blowdown during backwashing filter core during for safeguarding.
Preferably, the major cycle filter further includes differential pressure monitoring apparatus, and the differential pressure monitoring apparatus is connected by pipeline
It is connected between the first communication port and the second communication port, differential pressure monitoring apparatus both ends respectively set a normally opened ball valve.
Preferably, it is fixed with handle on the outside of the end cap.
Preferably, the filter core is fixed with filter core handle close to the end of the access hole side, convenient for the extraction of filter core.
The beneficial effects of the utility model are：
（1）In the utility model, the filter core includes several spaced apart steel wires and is fixed on the outside of the steel wire
Fixed plate can enhance the structural strength of the filter core, while filter core is not easy to plug in the case where ensureing certain filtering accuracy.
（2）In the utility model, the cross section of the steel wire is wedge shape, and the wedge-shaped apex angle of the steel wire is towards the filter
In-core side can reach better backwash effect.
（3）In the utility model, guide rod is equipped with below the filter core, the guide rod is used to support filter core, can be by described in
Filter core skidding off smoothly from the end cover side, reduces the working strength for extracting filter core.
（4）In the utility model, the lower section of second communication port is equipped with flow distribution plate, can make from second communication port
The big flow medium shunt of entrance avoids medium from directly impacting the filter core, protects filter cartridge construction.
Description of the drawings
Fig. 1 is the major cycle filter described in the utility model for high voltage direct current transmission converter valve cooling equipment
The structure diagram of specific embodiment（Containing broken section）；
Fig. 2 is the major cycle filter described in the utility model for high voltage direct current transmission converter valve cooling equipment
The part-structure schematic diagram of filter core when rinsing direction from inside to outside.
In figure, 1, main filter cylinder, 2, end cap, 3, hinge, 4, filter core, 4-1, steel wire, 4-2, fixed plate, 5, differential pressure prison
Survey device, the 6, second communication port, the 7, first communication port, 8, sewage draining exit, 9, guide rod, 10, flow distribution plate, 11, normally-closed ball valve, 12, often
Opening ball valve, 13, handle, 14, filter core handle, 15, access hole.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.
As shown in Figure 1, a kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment, including main filtering
Device cylinder 1, filter core 4 and differential pressure monitoring apparatus 5, one end of main filter cylinder 1 are equipped with access hole 15, the other end equipped with first-class
Port 7 sets end cap 2 at access hole 15；The top of 1 side wall of main filter cylinder is equipped with the second communication port 6, lower section is equipped with blowdown
Mouth 8；The filter core 4 is removably attached in main filter cylinder 1, and filter core 4 is including several spaced apart steel wire 4-1 and admittedly
Fixed plate 4-2 on the outside of steel wire 4-1, compared with gauze element structure of the prior art, the filter core 4 of the utility model can
To enhance the structural strength of filter core 4 in the case where ensureing certain filtering accuracy, while filter core 4 is not easy to plug；The differential pressure monitoring apparatus 5
Be connected between the first communication port 7 and the second communication port 6 by pipeline, for monitor the first communication port 7 and the second communication port 6 it
Between pressure, it is ensured that system worked well.
Specific embodiment of the present utility model is：Filter core 4 is placed on to the top of 1 inner guide 9 of main filter cylinder, is filtered
4 one end of core is fixed with 7 side of the first communication port of main filter cylinder, and the other end is fixed with main filter cylinder access hole side, is covered
End cap 2 is bolted main filter cylinder 1 and end cap 2.Wherein, the needs assembled according to system, can be by the first circulation
Mouth 7 is used as water outlet as water inlet, the second communication port 6；It can also be using the first communication port 7 as water outlet, the second communication port
As water inlet.
When the first communication port 7 is as water outlet, and the second communication port 6 is as water inlet, during normal work, by sewage draining exit 8
It blocks, medium flows into main filter cylinder 1 from the second communication port 6, is filtered inwardly by 4 outside of filter core, the impurity of larger particles
It is separated, reaches filter effect, suction of the medium after filtering through system suction pump is flowed out from the first communication port 7；When need
It, can be directly in filter on the one hand when system is more complicated is not easy to that filter core 4 often is taken out cleaning when cleaning filter core 4
Interior backwashing filter core 4, embodiments thereof are to block the second communication port 6, and sewage draining exit 8 is opened, and is aspirated clearly from the first communication port 7
Water, by the Inside To Outside filter cartridge flushing 4 of filter core 4, last sewage is discharged from sewage draining exit 8；The opposing party can remove end cap 2,
Filter core 4 is cleaned from the extraction of access hole 15.When the first communication port 7 is as water inlet, the second communication port 6 is used as water outlet
When, filtering direction and cleaning direction and aforementioned direction are exactly the opposite.
The folding of first communication port 7, the second communication port 6 and sewage draining exit 8 can be by circulating in the first communication port 7, second
The controlled valve of the corresponding pipeline break-make of control is set to realize at mouth 6 and sewage draining exit 8 respectively, for example, can be equipped at sewage draining exit 8
Normally-closed ball valve 11, during normal work, normally-closed ball valve 11 is closed, and when safeguarding or after backwashing filter core, normally-closed ball valve 11 is beaten
It opens, the sewage in discharge main filter cylinder 1.
Specific embodiment of the utility model 1, based on the above technical solution, the cross section of steel wire 4-1 is wedge shape,
And the wedge-shaped apex angle of the steel wire is inwardly or outwardly, when the first communication port 7 is as water outlet, the second communication port 6 is as water inlet
Mouthful when, for ejected wash water by 4 Inside To Outside filter cartridge flushing of filter core, the wedge-shaped apex angle of steel wire then should be towards inside, as described in Figure 2；When
First communication port 7 is used as water inlet, and when the second communication port 6 is as water outlet, ejected wash water by 4 outside of filter core is rinsed and filtered inwardly
Core, the wedge-shaped apex angle of steel wire then should be towards outside, compared with circular steel wire is in cross section in the prior art, wedge-shaped section knot
Structure can reach better backwash effect.
Specific embodiment of the utility model 2, on the basis of embodiment 1, steel wire 4-1 is axially spaced apart in round
It forms, fixed plate 4-2 is then set on the outside of steel wire 4-1, and for fixing steel wire, the simple in structure and structural strength is high.
Since the process working strength for moving and covering end cap 2 is larger, the utility model can preferred main filter cylinder 1
It is connected with end cap 2 by hinge 3, carrying end cap is may not need when safeguarding, directly opened, after covering end cap 2, pass through bolt
It is fixed.
Specific embodiment of the utility model 3, it is also fixed in main filter cylinder 1 on the basis of embodiment 1 or 2
There is guide rod 9, the guide rod 9 is located at the underface of filter core 4, and when filter core 4 is removed, guide rod 9 can play filter core 4 support and make
With, filter core 4 is allow to be extracted out by level, helps from access hole 15 smoothly to skid off filter core 4, the work of reduction extraction filter core 4
Make intensity.
Specific embodiment of the utility model 4, on the basis of embodiment 1 or 2 or 3, inside main filter cylinder 1
Two communication ports, 6 lower section is fixed with flow distribution plate 10, medium can be avoided directly to impact filter core 4 the big flow medium shunt of entrance,
Protect the structure of filter core 4.
Specific embodiment of the utility model 5, on the basis of embodiment 1 or 2 or 3 or 4, the major cycle filter is also
Including differential pressure monitoring apparatus 5, for monitoring main filter inlet outlet pressure differential, when pressure difference is higher than normal value, represent that filter core 4 blocks
It is more serious, it needs to clean filter core 4.The differential pressure monitoring apparatus 5 is connected to the first communication port 7 and second by pipeline
Between communication port 6, when the systems are operating normally, medium flows to differential pressure by the second communication port 6 and the first communication port 7 respectively and monitors
5 both ends of device, differential pressure monitoring apparatus 5 monitor the hydraulic pressure at both ends, so as to calculate the second communication port 6 and the first communication port 7 it
Between pressure differential.5 both ends of differential pressure monitoring apparatus respectively set a normally opened ball valve 12, when system is in running order, normally opened ball valve 12
It opens, when being overhauled to differential pressure measuring device 5, normally opened ball valve 12 is closed, and so as to cut off the branch, does not influence main line Jie
Mass flow is led to.
It, can also be in 2 outside setting handle 13 of end cap for the ease of opening end cap 2.
It, can also be in filter core 4 close to the end set filter core handle 14 of 15 side of access hole in order to facilitate filter core 4 is extracted.
Several specific embodiments of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, can be readily occurred in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with
Subject to the scope of the claims.
Claims (10)
1. a kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment, it is characterised in that：Including main filtering
Device cylinder（1）And filter core（4）；
The main filter cylinder（1）One end be equipped with access hole（15）, the other end is equipped with the first communication port（7）；Access hole
（15）Place is equipped with end cap（2）；Main filter cylinder（1）The top of side wall is equipped with the second communication port（6）, lower section is equipped with sewage draining exit
（8）；
The filter core（4）It is removably attached to main filter cylinder（1）It is interior, filter core（4）Including several spaced apart steel wires
（4-1）Be fixed on steel wire（4-1）The fixed plate in outside（4-2）.
2. the major cycle filter according to claim 1 for high voltage direct current transmission converter valve cooling equipment, feature
It is：The steel wire（4-1）Cross section be wedge shape, and steel wire（4-1）Wedge-shaped apex angle inwardly or outwardly.
3. the major cycle filter according to claim 1 for high voltage direct current transmission converter valve cooling equipment, feature
It is：The steel wire（4-1）It is formed in round is axially spaced apart.
4. the major cycle filter according to claim 1 for high voltage direct current transmission converter valve cooling equipment, feature
It is：The main filter cylinder（1）And end cap（2）Pass through hinge（3）Connection.
5. the major cycle filter according to claim 1 for high voltage direct current transmission converter valve cooling equipment, feature
It is：The main filter cylinder（1）Inside it is fixed with guide rod（9）, and guide rod（9）Positioned at filter core（4）Underface.
6. the major cycle filter according to claim 1 for high voltage direct current transmission converter valve cooling equipment, feature
It is：The main filter cylinder（1）The second internal communication port（6）Lower section is fixed with flow distribution plate（10）.
7. the major cycle filtering according to any one of claims 1 to 6 for high voltage direct current transmission converter valve cooling equipment
Device, it is characterised in that：The sewage draining exit（8）Place is equipped with normally-closed ball valve（11）.
8. the major cycle filtering according to any one of claims 1 to 6 for high voltage direct current transmission converter valve cooling equipment
Device, it is characterised in that：The major cycle filter further includes differential pressure monitoring apparatus（5）, the differential pressure monitoring apparatus（5）Pass through pipe
Road is connected to the first communication port（7）With the second communication port（6）Between, differential pressure monitoring apparatus（5）Both ends respectively set a normally opened ball valve
（12）.
9. the major cycle filtering according to any one of claims 1 to 6 for high voltage direct current transmission converter valve cooling equipment
Device, it is characterised in that：The end cap（2）Outside is fixed with handle（13）.
10. the major cycle filtering according to any one of claims 1 to 6 for high voltage direct current transmission converter valve cooling equipment
Device, it is characterised in that：The filter core（4）Close to access hole（15）The end of side is fixed with filter core handle（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721689284.5U CN207591384U (en) | 2017-12-07 | 2017-12-07 | A kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721689284.5U CN207591384U (en) | 2017-12-07 | 2017-12-07 | A kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207591384U true CN207591384U (en) | 2018-07-10 |
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ID=62763447
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721689284.5U Active CN207591384U (en) | 2017-12-07 | 2017-12-07 | A kind of major cycle filter for high voltage direct current transmission converter valve cooling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207591384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552934A (en) * | 2019-09-11 | 2019-12-10 | 周鹏 | Hydraulic oil filter element |
-
2017
- 2017-12-07 CN CN201721689284.5U patent/CN207591384U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552934A (en) * | 2019-09-11 | 2019-12-10 | 周鹏 | Hydraulic oil filter element |
| CN110552934B (en) * | 2019-09-11 | 2020-12-11 | 日照亿铭科技服务有限公司 | Hydraulic oil filter element |
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