GB2136306A - Equipment for Filtering of Cooling Water - Google Patents
Equipment for Filtering of Cooling Water Download PDFInfo
- Publication number
- GB2136306A GB2136306A GB08400974A GB8400974A GB2136306A GB 2136306 A GB2136306 A GB 2136306A GB 08400974 A GB08400974 A GB 08400974A GB 8400974 A GB8400974 A GB 8400974A GB 2136306 A GB2136306 A GB 2136306A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sieve
- sector
- equipment
- flow
- housing
- Prior art date
- 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.)
- Granted
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 title abstract 2
- 238000005192 partition Methods 0.000 claims abstract description 28
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 101001017827 Mus musculus Leucine-rich repeat flightless-interacting protein 1 Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Centrifugal Separators (AREA)
- Multiple-Way Valves (AREA)
Abstract
Equipment for filtering the cooling-water in a power-station condenser system comprises a cylindrical sieve housing (1), forming part of a duct and enclosing at least one sieve basket assembly (2) axially aligned with the housing axis (3). The basket assembly is divided into two or more sectors which act in parallel by partition (8), and a flap valve (10) enables each sector in turn to be isolated from the upstream side of the housing to suspend the forward flow therethrough. Each sector has a valve (11) which is then opened, so that water filtered through the other sector (5) backwashes the sieve in the isolated sector and carries debris out through that valve (11). Sieve baskets may be of various shapes, and a four- sector arrangement is exemplified. <IMAGE>
Description
SPECIFICATION
Equipment for Mechanical Cleaning of Cooling
Water
This invention relates to equipment for the mechanical cleaning of a cooling-water stream from a power-station condenser system and comprising a cylindrical sieve housing, at least one sieve basket having a longitudinal axis extending parallel to the housing axis, and a backflushing system, in which the sieve basket has a head and a sieve jacket and is attached by the sieve jacket to a supporting base attached to the sieve housing, deposited debris being detachable with the aid of the back-flushing system, which has an effluent discharge attachment for the discharge of the detached debris.
In known equipment of this type (Hawker
Siddeley Brackett Ltd. brochure, Ref. No. 2012, page 3) the stream passes through the sieve housing transversely to its axial direction.
Accordingly, the sieve basket has a sieve jacket open on the inflow side, into which the coolingwater stream flows to undergo cleaning. The head and the supporting base are not constructed as sieves but rather as plate-shaped components forming parts of the sieve housing. The backflushing system has a suction box extending inside the sieve basket jacket over the basket height and swivellable in the peripheral direction along the sieve basket jacket. A suction line with a suction pump is connected to the suction box. In similar equipment (DE-OS 22 37 912), the suction box is fixed in position and the closed cylindrical sieve basket can rotate about its axis, so that the sieve basket jacket is fed across the suction box.Accordingly, the cooling-water stream enters the sieve basket from below, but it enters the housing transversely to its axial direction and also leaves it again transversely to its axial direction. The known equipment of this type is in need of improvement, because the sieve housing can only accommodate a relatively small sieve area, so that as a rule the sieve housing has a substantially larger cross-section than the duct through which the cooling-water stream enters and leaves. Also, the sieve basket head and the supporting base take no part in the mechanical cleaning of the cooling-water stream, thereby increasing the flow resistance.Moreover, the provisions for back-flushing are costly, first because relative movement must be maintained between the sieve basket jacket and the suction box and secondly because adequate debris suction through the suction box can only be ensured by providing a costly suction pump. It is particularly disadvantageous that the known art form of sieve basket has a low storage capability, in the sense of collecting an increasing amount of debris within the sieve basket before the flow resistance and hence the pressure losses are seriously increased. As debris collects on the sieve jacket, the flow resistance usually increases exponentially with the amount of debris collected.
In this context, the object of the invention is to provide modified equipment of the type in question in which a substantially larger sieve area can be accommodated in the sieve housing, combined with a significant storage capability as defined above. Nevertheless, back-flushing to discharge deposited debris is to be provided by simple means without involving relative movement between the sieve area and a suction box connected to a suction pump.
According to the present invention the stream flows through the sieve housing in the axial direction and the sieve housing has at least one sector-forming partition which starts upstream of the sieve basket in the flow direction and extends at least over the basket length, at least one of the components forming the sieve basket head and the supporting base is constructed as a sieve, and the back-flushing system has a discharge union in each sector upstream of the sieve basket and the supporting base, and also at least one reverseflow flap whereby the sectors can be successively closed on the upstream side for back-flushing, at which times the discharge union associated with the respective sector is obviously open.
Preferably, the supporting base and the sieve basket head, both of which are, disposed transversely to the flow direction, are both constructed as sieves. Back-flushing is carried out periodically as and when the debris accumulates.
The term "sieve basket head" in the context of the invention denotes the closure on the sieve basket jacket, irrespective of whether the outer face of the sieve basket head or the inner face of the sieve basket head surrounded by the sieve basket jacket is directed towards the stream. The term "supporting base" in the context of the invention denotes a base built into the sieve housing and supporting the sieve basket jacket. Depending on construction requirements, the partition can extend as far as the reverse-flow flaps or further upstream of them.
The invention arises from the realisation that the sieve basket head and/or the supporting base in this type of device can be adapted as a sieve or sieves, thereby significantly increasing the sieve area that can be accommodated in a sieve housing of given size. The invention makes use of the fact that the sieve jacket, the sieve basket head and the supporting base can nevertheless be
cleaned by the back-flushing procedure by simple means involving neither relative movement nor the provision of a suction box connected to a suction pump, because certain hydrodynamic conditions are set up by the combination first of the sector-forming partition (or partitions) disposed as specified and secondly of a
correspondingly actuated reverse-flow flap (or set
of reverse-flow flaps), which conditions directly
and as it were spontaneously bring about the
back-flushing action.These conditions
(particularly the fact that it is no longer necessary
to maintain relative movement between the sieve
area in need of back-flushing and a suction box),
make it possible to increase the sieve area that
can be accommodated in a sieve housing of given size by a considerable factor compared with the known embodiments. As the same time, there is no restriction on the shape of the sieve basket or its jacket. In this connection, in one embodiment of the invention a plurality of concentrically disposed sieve baskets have their jackets spaced apart from each other and joined together by annular sieve basket head plates and supporting base plates, the sieve basket axis being coincident with the axis of the sieve housing, and the sieve basket jackets being divided into similar sectors by the sector-forming partition or partitions.
Alternatively, the supporting base is constructed as a sieve and is separated into supporting-base sectors by the sector-forming partition or partitions, each supporting-base sector having at least one (usually circular) hole allowing entry of the cooling-water stream into the corresponding sieve basket.
The sieve basket jacket or jackets may be cylindrical in shape and disposed with the axis of axes on or parallel to the axis of the sieve housing.
However, with appropriate modifications the sieve basket jacket or jackets may be frustoconical in shape.
It is self-evident that the reverse-flow flaps in the device of the invention must be actuated as described, and that the discharge unions must be adapted to open and close as required, by the provision of valves, flaps or shutters. This can be automatically coordinated by providing the or each reverse-flow flap with a closure flap, so that when the reverse-flow flap is in position to open a sector the discharge union is closed and when the reverse-flow flap is in position to close a sector and back-flushing is taking place the discharge union is open.
The subdivision of the sieve housing by one or more sector-forming partitions can be adapted to specific requirements. The arrangements will usually be such that the sector-forming partition or partitions divide the sieve housing into sectors of equal cross-section. This is preferably for hydrodynamic reasons and minimises the disturbance of the cooling-water stream One possibility is that the sieve housing is subdivided diametrically by a single sector-forming partition into two sectors, both of which are serviced by a single reverse-flow flap. Another possibility is that the sieve housing is subdivided by a cruciform pair of sector-forming partitions into four sectors, respectively serviced by four quadrant-shaped reverse-flow flaps.In this case, a pair of quadrantshaped reverse-flow flaps may be mounted on a single actuating shaft, one of the pair being set at goo to the other. Alternatively, two pairs of quadrant-shaped reverse-flow flaps may be arranged on pairs of shafts, the axis of one pair of shafts being set at 900 to the axis of the other
pair of shafts. The actuation of the reverse-flow flaps in conformity with the periodic sector-by
sector back-flushing sequence can easily be
controlled in other respects, with the aid of
modern driving and control technology, and no
detailed description is required.
A number of embodiments of the invention will now be described, by way of example only, with reference to the accompanying diagrammatic drawings, in which:~
Figure 1 is an axial section through equipment in accordance with the invention, with different sieve basket arrangements in the left and right hand halves respectively;
Figure 2 is a plan view of the equipment of
Figure 1;
Figure 3 corresponds to Figure 1 but shows another embodiment of the invention;
Figure 4 also corresponds to Figure 1 but shows yet another embodiment of the invention;
Figure 5 is a plan view of equipment in accordance with the invention having a plurality of individual sieve baskets;
Figure 6 is a section taken on the line A-A of
Figure 5;
Figure 7 is a perspective view of reverse-flow flaps for incorporation in the equipment of Figures 5 and 6;;
Figure 8 is a fragmentary axial section through the lower part of further equipment in accordance with the invention, having four sectors and specially adapted reverse-flow flaps;
Figure 9 is a plan view of the equipment of
Figure 8;
Figure 10 is an axial section through the last embodiment of the invention, parallel to the axis of rotation of the flap system;
Figure 11 is a section taken on the line B-B of
Figure 10;
Figure 12 corresponds to Figure 1 1 but shows a different operating position;
Figure 13 also corresponds to Figure 11 but shows another different operating position; and
Figure 14 is a section taken on the line C-C of
Figure 10.
Each embodiment shown in the drawings is intended for the mechanical cleaning of a coolingwater stream from a power-station condenser system and comprises a cylindrical sieve housing
1, at least one sieve basket 2 having a longitudinal axis 3, and a back-flushing system 4.
The or each sieve basket 2 has a head 5 and a jacket 6, which is attached to a supporting base 7 attached to the sieve housing 1. Deposited debris can be detached with the aid of the back-flushing system 4, which has attachments for effluent discharge, to be described later.
On the right in Figures 1 and 2 is shown a
single sieve basket 2, which can be visualised as
extending into the left hand half, while in the
alternative on the left in Figures 1 and 2 are
shwon two concentrically disposed sieve baskets
2 which can be likewise visualised as extending
into the right hand half.
Figures 3 and 4 show alternatives of disposition and shape of single sieve baskets, while an alternative arrangement of a plurality of sieve baskets is shown in Figures 5 and 6.
In each of the embodiments the cooling-water
stream passes throughout the sieve housing 1 in the axial direction, entering it axially at one end and leaving it axially at the other end.
In the embodiments shown in Figures 1 and 2,
Figure 3 and Figure 4, the sieve housing 1 has a single sector-forming partition 8, which starts upstream of the sieve basket or baskets 2 in the flow direction and extends at least over the sieve basket length, to divide the sieve basket or baskets in two sectors S. The back-flushing system 4 has a discharge union 9 in each sector S and upstream of the sieve basket or baskets 2, and a single reverse-flow flap 10 on a shaft 17 whereby the upstream sides of the sectors S can be periodically and alternately closed for backflushing.
As indicated by Figure 1, when the right-hand sector S is closed the corresponding discharge union 9 is opened by opening a valve 11, whereas the other discharge union 9 is kept closed, and the resulting flow pattern is indicated by the arrows 12. It will be seen that the cooling-water stream passes through the left-hand sector S in the normal direction and is thereby cleaned, but part of the cleaned stream is diverted in the direction indicated by the arrows 12, to being about back-flushing whereby deposited debris is removed not only from the sieve basket jacket 6 in the right hand sector S but also from the corresponding sieve basket head 5 and supporting base 7, which are likewise constructed as a sieve, the debris being discharged through the discharge union 9.
In the embodiment shown in Figure 3 the sieve basket 2 is disposed with its head 5 towards the flow direction, while in the embodiment of Figure 4 the sieve basket 2 is shown housing a frustoconical sieve basket jacket 6 and a domed sieve basket head 5.
As will be readily seen from Figures 1 to 4 the sieve basket 2 (or the plurality of concentrically disposed sieve baskets with jackets 6 spaced apart from each other and joined together by annular sieve basket plates 5 and supporting base plates 7) has the sieve basket axis 3 coincident with the axis of the sieve housing. Alternatively, however, one can adopt the arrangement illustrated in
Figures 5 and 6. In this case the supporting base 7, which is again constructed as a sieve, is separated by sector-forming partitions 8 into four supporting-base sectors S', each supporting-base sector S' having one or more holes 14 allowing entry of the cooling-water stream into the corresponding sieve baskets 2, the jackets 6 of which can be cylindrical (as shown) or conical in shape.
The embodiment shown in Figures 8 and 9 is outstandingly simple in relation to the operation of the reverse-flow flaps 10. It will be seen that the four reverse-flow flaps 10 each carry a closure flap 1 so that when a sector S' is open an armature 15 in the discharge union 9 is closed and when a reverse-flow flap 10 closes a section
S' and back-flushing is taking place the aperture 15 in the discharge union 9 is open. The discharge union 9 is accordingly disposed centrally in the sieve housing 1 and has an elbow bend 1 6 extending through to the outside of the housing.
Figures 1 to 4 depict embodiments of the invention in which the sieve housing 1 is subdivided diametrically into two equal semicylindrical sectors S by one sector-forming partition 8. Figures 5 to 9 show embodiments in which the sieve housing 1 is subdivided diametrically by a cruciform pair of sector-forming partitions 8 into four equal quadrant-shaped sectors S' serviced by quadrant-shaped reverseflow flaps 10, which may, as shown in Figure 7, be set at 900 to each other on a common actuating shaft 17. By successive movements through 90C on the shaft, the sectors S' can be back-flushed as described. It is obviously within the scope of the invention to provide more than four sectors S.Although not shown, it is also possible in the embodiment shown in Figures 5 and 6 to provide additional partitions running in the flow direction between the sieve baskets 2 in the sector on the left, so as to distribute the cleaning water over all the sieve baskets 2 during back-flushing. Furthermore, a sieve basket 2 can even be adapted as a set of folds having a plurality of straight sieve walls, disposed parallel to each other for example and constituting the sieve basket jacket 6; in this case, the sieve walls and intermediate folds can extend parallel to a diameter.
The embodiments shown in Figures 1 to 4 can be further modified and simplified, as illustrated in
Figures 10 to 14.
The back-flushing system in this embodiment had an effluent discharge channel 18 disposed upstream of the sieve basket 2, running radially at right angles to the sieve housing axis 13 and having a central outlet 19 for effluent from the housing. The back-flushing system 4 also incorporates a valve arrangement comprising sector-shaped reverse-flow flaps 10 for the cooling-water stream and closure flaps 1 1 for the central outlet 19. The valve arrangement is swivellable about an actuating shaft 17 disposed orthogonally to the sieve housing axis 13 and orthogonally to the axis 20 of the effluent discharge channel 18, between a normal operating setting (Figure 11) and either of two back-flushing settings (Figures 12 and 13 respectively).The arrangement is such that when the reverse-flow flaps 10 are set for normal operation the closure flaps 1 1 completely close the discharge outlet 19, while when the reverseflow flaps 10 are set for back-flushing the closure flaps 1 1 expose one side of the other of the discharge outlet 19. The closure half-flaps 11 are set in V formation with an intermediate angle of about 90 , and the general arrangement is such that, as viewed in a direction parallel to the swivelling axis 17, the reverse-flow flaps 10 and the closure half-flaps form a Y-shaped assembly.
The effluent discharge channel 18 has an outlet cowl 21 with the discharge outlet 19 oriented in the same direction as the flow of the cooling water under normal operating conditions. The two reverse-flow flaps 10 operate one on either side of the effluent discharge channel 18, while the two closure half-flaps 11 operate within the outlet cowl 21. The effluent discharge channel 18 is connected at one side to a discharge union 9.
The outlet cowl 21 has arcuate walls 22, along which the outer edges of the closure half-flaps travel as they are swivelled. The sieving device has a substantially cylindrical sieve basket jacket 6 capped by a sieve basket head 5, and disposed coaxially with the sieve housing 1. Downstream of the common actuating shaft 17 for the valve arrangement, in the flow direction of the cooling water under normal operating conditions, there is provided a common sector-forming partition 8, which also passes through the sieve basket 2 of the device. It has a cap 23 for the closure halfflaps 11, with one or other of which it is contiguous when the valve arrangement is in one position or the other for back-flushing operation.
Claims (12)
1. Equipment for the mechanical cleaning of a cooling-water stream from a power-station condenser system and comprising a cylindrical sieve housing, at least one sieve basket having a longitudinal axis extending parallel to the housing axis, and a back-flushing system in which the sieve basket has a head and a seive jacket and is attached by the sieve jacket to a supporting base attached to the sieve housing, deposited debris being detachable with the aid of the back-flushing system, which has an effluent discharge attachment for the discharge of the detached debris, the stream flowing through the sieve
housing in the axial direction, the sieve housing
having at least one sector-forming partition which
starts upstream of the sieve basket in the flow
direction and extends at least over the basket
length, at least one of the components forming the sieve basket head and the supporting base
being constructed as a sieve, and the backflushing system having a discharge union in each
sector upstream of the sieve basket and the
supporting base and also at least one reverseflow flap whereby the sectors can be successively
closed on the upstream side for the back-flushing.
2. Equipment as in Claim 1, having a plurality
of concentrically disposed sieve baskets and
having jackets spaced apart from each other and joined together by annular head plates and supporting base plates, the sieve basket axis
being coincident with the axis of the sieve
housing, and the sieve basket jackets being divided into similar sectors by the sector-forming
partition or partitions.
3. Equipment as in Claim 1, wherein the supporting base is constructed as a sieve and is separated into supporting-base sectors by the
sector-forming partition or partitions, each supporting-base sector having at least one hole
allowing entry of the cooling-water stream into the corresponding sieve basket.
4. Equipment as in any one of Claims 1 to 3, wherein the or each reverse-flow flap is provided with a closure flap, so that when the reverse-flow flap is in position to open a sector the discharge union is closed, while the reverse-flow flap is in position to close a sector and back-flushing is taking place the discharge union is open.
5. Equipment as in any one of Claims 1 to 4, wherein the sieve housing is subdivided diametrically by a single sector-forming partition into two sectors both of which are serviced by a single reverse-flow flap.
6. Equipment as in any one of Claims 1 mto 4, wherein the sieve housing is subdivided diametrically by a cruciform pair of sector-forming partitions into four sectors respectively serviced by four quadrant-shaped reverse-flow flaps.
7. Equipment as in Claim 6, wherein a pair of quadrant-shaped reverse-flow flaps are mounted on a single actuating shaft, one of the pair being set at 900 to the other.
8. Equipment as in Claim 6, wherein two pairs of quadrant-shaped reverse-flow flaps are arranged on pairs of shafts, the axis of one pair of shafts being set at 900 to the axis of the other pair of shafts.
9. Equipment as in Claim 1, wherein a valve arrangement is swivellable about an actuating shaft disposed orthogonally to the sieve housing axis and orthogonally to the axis of an effluent discharge channel, between a normal operating setting and a back-flushing setting, the valve arrangement consisting of two reverse-flow flaps spaced apart on a common actuating shaft and two closure half-flaps also spaced on the same actuating shaft, the closure half-flaps being set in
V formation with an intermediate angle of about 900 and together with the reverse-flow flaps forming a Y-shaped assembly as viewed in a direction parallel to the swivelling axis, while the effluent discharge channel passes diametrically through the cylindrical sieve housing and has an outlet cowl with a discharge outlet oriented in the same direction as the flow of the cooling water under normal operating conditions, the two reverse-flow flaps operating on either side of the effluent discharge channel, the two closure halfflaps operating within the outlet cowl, and the common actuating shaft passing through the outlet cowl.
10. Equipment as in Claim 8, wherein the outlet cowl has arcuate walls disposed along the path of the outer edges of the closure half-flaps.
11. Equipment as in either of Claims 8 and 9, wherein downstream of the actuating shaft for the valve arrangement, in the flow direction of the cooling water under normal operating conditions, there is provided a diametrical sector-forming partition having a gap for the closure half-flaps, with one or other of which it is contiguous when the valve arrangement is in one position or the other for back-flushing operation.
12. Equipment for the mechanical cleaning of a
cooling-water stream from a power-station
condenser system and substantially as herein before described with reference to Figures 1 and and 9, or Figures 10 to 14 of the accompanying 2, Figure 3, Figure 4, Figures 5 and 6, Figures 8 drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3306003A DE3306003C2 (en) | 1983-02-22 | 1983-02-22 | Filter device for the mechanical cleaning of a cooling water flow from power station condenser systems |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8400974D0 GB8400974D0 (en) | 1984-02-15 |
| GB2136306A true GB2136306A (en) | 1984-09-19 |
| GB2136306B GB2136306B (en) | 1987-02-25 |
Family
ID=6191431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08400974A Expired GB2136306B (en) | 1983-02-22 | 1984-01-13 | Equipment for filtering of cooling water |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS59154112A (en) |
| KR (1) | KR870001153B1 (en) |
| AU (1) | AU564052B2 (en) |
| BR (1) | BR8400472A (en) |
| DE (1) | DE3306003C2 (en) |
| FR (1) | FR2541134B1 (en) |
| GB (1) | GB2136306B (en) |
| IN (1) | IN160322B (en) |
| IT (1) | IT1173076B (en) |
| SU (1) | SU1530081A3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3310711A1 (en) * | 1983-03-24 | 1984-09-27 | Josef Dipl.-Ing. 4006 Erkrath Koller | Apparatus for separating solids from a liquid stream |
| DE3344703C1 (en) * | 1983-12-10 | 1985-04-11 | Taprogge GmbH, 4000 Düsseldorf | Device for mechanically cleaning a cooling water stream |
| FR2594044A1 (en) * | 1986-02-11 | 1987-08-14 | Beaudrey & Cie | SELF-CLEANING FILTER. |
| DE4013487C2 (en) * | 1990-04-27 | 1994-06-30 | Hoelter Heinz | Device for protecting the nozzles in large washers from clogging |
| DE9309126U1 (en) * | 1993-06-18 | 1994-10-27 | Taprogge GmbH, 58300 Wetter | Device for filtering a flowing medium |
| ES2458100T3 (en) * | 2010-02-26 | 2014-04-29 | Georg Fischer Jrg Ag | Backwash filtering arrangement |
| CN111888836B (en) * | 2020-09-10 | 2023-08-15 | 台嘉成都玻纤有限公司 | Side filtering system for filtering impurities in water |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1202314A (en) * | 1967-08-23 | 1970-08-12 | Carrier Corp | Apparatus capable of simultaneous filtration and back flushing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR495772A (en) * | 1918-02-19 | 1919-10-17 | Auguste Timmermans | Filter for breweries and similar industries |
| US2068468A (en) * | 1934-03-31 | 1937-01-19 | Pratt Co Henry | Filter |
| US2237964A (en) * | 1938-11-01 | 1941-04-08 | Thomas E Haught | Screen cleaning means |
| US2332188A (en) * | 1941-10-21 | 1943-10-19 | John H-P Andrews | Filter |
| FR1384885A (en) * | 1963-11-25 | 1965-01-08 | Bag filter refinements | |
| DE2237912A1 (en) * | 1972-08-02 | 1974-02-14 | Perlwitz Ohg | Cylindrical back-wash filter energised by fluid stream - filter casing rotated by fluid stream hitting impact plates with cam disc controlling back-wash |
| DE2928093C3 (en) * | 1979-07-12 | 1982-07-29 | Taprogge Gesellschaft mbH, 4000 Düsseldorf | Device for separating solids from a liquid stream |
| JPS5880493A (en) * | 1981-11-06 | 1983-05-14 | Mitsubishi Heavy Ind Ltd | Strainer |
-
1983
- 1983-02-22 DE DE3306003A patent/DE3306003C2/en not_active Expired
- 1983-03-18 JP JP58044578A patent/JPS59154112A/en active Granted
- 1983-03-21 FR FR8304572A patent/FR2541134B1/en not_active Expired
-
1984
- 1984-01-13 GB GB08400974A patent/GB2136306B/en not_active Expired
- 1984-01-19 IT IT19231/84A patent/IT1173076B/en active
- 1984-01-21 IN IN43/CAL/84A patent/IN160322B/en unknown
- 1984-02-03 BR BR8400472A patent/BR8400472A/en unknown
- 1984-02-09 AU AU24403/84A patent/AU564052B2/en not_active Ceased
- 1984-02-17 SU SU843703571A patent/SU1530081A3/en active
- 1984-02-22 KR KR1019840000867A patent/KR870001153B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1202314A (en) * | 1967-08-23 | 1970-08-12 | Carrier Corp | Apparatus capable of simultaneous filtration and back flushing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59154112A (en) | 1984-09-03 |
| IT1173076B (en) | 1987-06-18 |
| KR840007528A (en) | 1984-12-08 |
| IT8419231A0 (en) | 1984-01-19 |
| BR8400472A (en) | 1984-10-02 |
| DE3306003C2 (en) | 1985-02-28 |
| DE3306003A1 (en) | 1984-08-23 |
| FR2541134A1 (en) | 1984-08-24 |
| FR2541134B1 (en) | 1986-12-05 |
| IN160322B (en) | 1987-07-04 |
| AU2440384A (en) | 1984-08-30 |
| GB2136306B (en) | 1987-02-25 |
| GB8400974D0 (en) | 1984-02-15 |
| JPS61125B2 (en) | 1986-01-06 |
| SU1530081A3 (en) | 1989-12-15 |
| KR870001153B1 (en) | 1987-06-13 |
| AU564052B2 (en) | 1987-07-30 |
| IT8419231A1 (en) | 1985-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4935136A (en) | Disk filter | |
| JP2588230B2 (en) | Self-cleaning filter to be installed in conduit under pressure | |
| EP0340471B1 (en) | Radial fan with integral dirt separator | |
| US4565631A (en) | Backflow-type self-cleaning filter | |
| EP0019057A1 (en) | Multistage vortex dust removing system | |
| JPS5926240B2 (en) | Device for separating the cleaning body from the fluid flowing out of the tubular heat exchanger | |
| US4311591A (en) | Filter for separating solid bodies from a fluid stream | |
| GB2136306A (en) | Equipment for Filtering of Cooling Water | |
| US4636311A (en) | Multiple filters with flow-reversing rotary valve set | |
| DE69016674T2 (en) | HEAT RECOVERY FAN. | |
| JPH0262290B2 (en) | ||
| DE3727672C1 (en) | Ventilation device, in particular heating or air-conditioning system for the interior of a vehicle | |
| SE464277B (en) | DEVICE FOR FILTERING OF A SUPPLY FLOW, STEPING FOR A MOTOR VEHICLE | |
| GB2093982A (en) | Air conditioning apparatus | |
| JPH0253114B2 (en) | ||
| GB2131712A (en) | Equipment for filtering cooling water | |
| JPS5880493A (en) | Strainer | |
| SE467891B (en) | FILTER UNIT FOR CLEANING AIR AIR CONTAINING AIR CONDITIONING | |
| JP3402418B2 (en) | Centrifugal concentrator | |
| US20040065200A1 (en) | Method and apparatus for the removal of particulate from a fluid stream | |
| JPS642404B2 (en) | ||
| DE19834131C2 (en) | Vehicle body | |
| JPS5855017A (en) | Apparatus for separating solid from liquid stream, especially, cooling water stream of power plant contaminated with solid | |
| DE102016004496B4 (en) | Separating device and method for the separation of particles from an intake air of an internal combustion engine | |
| DE2322990B2 (en) | Filters for exhaust gas recirculation systems of internal combustion engines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19970113 |