CN207871673U - A kind of recirculated water secondary filter - Google Patents
A kind of recirculated water secondary filter Download PDFInfo
- Publication number
- CN207871673U CN207871673U CN201820092779.8U CN201820092779U CN207871673U CN 207871673 U CN207871673 U CN 207871673U CN 201820092779 U CN201820092779 U CN 201820092779U CN 207871673 U CN207871673 U CN 207871673U
- Authority
- CN
- China
- Prior art keywords
- device cylinder
- filter screen
- shaft
- described device
- dredge pump
- 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.)
- Expired - Fee Related
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a kind of recirculated water secondary filter, including device cylinder, described device cylinder is equipped with water inlet end and water outlet；Motor is equipped in described device cylinder；Filter screen is equipped in described device cylinder；The filter screen is between water inlet end and water outlet；Shaft is connected with by bearing in described device cylinder；The bearing is set to by the support of bearing in device cylinder；One end of the shaft is connected by shaft coupling with the motor shaft of motor；It is connected with spiral brush sifter in the shaft；The spiral brush sifter is located in the guard of filter screen formation；One end of the filter screen is connected with blow-off pipe；The blow-off pipe is connected with the blowdown valve outside device cylinder.The utility model is simple in structure, and filth-discharging effect is good, removes contamination conveniently.
Description
Technical field
The utility model is related to filter device technical field more particularly to a kind of recirculated water secondary filters.
Background technology
Electric power plant circulating water secondary filter mostly uses the mode of backwash and clears up the sundries for intercepting to get off on strainer at present, still
Once sundries is hung on strainer, it will be difficult to which the strength using cycle water backwashing is automatically clean by filter gauze cleaning, before causing strainer
Differential pressure afterwards increases, and the recirculated water main-piping pressure before strainer increases, and water circulating pump running current rises, and production station service increases,
Operating cost increases；Circulating water pressure declines after secondary filter, is reduced into condenser circulating water amount, unit vacuum decay, machine
Group generating capacity declines；If not having to secondary filter, sundries directly blocks Condenser Titanium Tube or copper pipe, can equally make recirculated water
Pump operation electric current increases, and unit generation ability declines.
Utility model content
A kind of simple in structure, behaviour is provided the purpose of the utility model is to overcome above-mentioned shortcoming in the prior art
Facilitate, practical recirculated water secondary filter.
The utility model is realized in the following way：
A kind of recirculated water secondary filter, it is characterised in that：Including device cylinder, described device cylinder is equipped with water inlet
End and water outlet；Motor is equipped in described device cylinder；Filter screen is equipped in described device cylinder；The filter screen is located at water inlet
Between end and water outlet；Shaft is connected with by bearing in described device cylinder；The bearing is set to device by the support of bearing
In cylinder；One end of the shaft is connected by shaft coupling with the motor shaft of motor；It is connected with spiral brush sifter in the shaft；Institute
Spiral brush sifter is stated to be located in the guard of filter screen formation；One end of the filter screen is connected with blow-off pipe；The blow-off pipe be set to
Blowdown valve outside device cylinder is connected.
Further, described device cylinder is equipped with differential pressure transmitter.
Further, one end of the blowdown valve is connected with dredge pump；The other end of the dredge pump is connected with dredge pump
Outlet valve；Dredge pump bypass valve is parallel between the blowdown valve and dredge pump outlet valve.
Further, the filter screen is in umbrella.
The beneficial effects of the utility model are：Simple in structure, filth-discharging effect is good, removes contamination conveniently.
Description of the drawings
Fig. 1 the utility model structure diagrams.
Specific implementation mode
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically
It is bright.It should be appreciated that the embodiment of the utility model is not limited to the following examples, the utility model is done any
Formal accommodation and/or change falls within scope of protection of the utility model.
Embodiment：
A kind of recirculated water secondary filter, as shown in Figure 1, including device cylinder 20, device cylinder 20 is equipped with water inlet
End 21 and water outlet 22；Water inlet end 21 is designed as flaring and circulating water pressure can be improved and reduce recirculated water flow velocity, and then reduces and follow
Ring water by the crushing of strainer, water outlet 22 be designed as it is tapered, to meet the connection of filter screen 5 and circulating water line, simultaneously
Recirculated water flow velocity is improved, condenser heat transfer effect is increased；Motor 1 is equipped in device cylinder 20；Filtering is equipped in device cylinder 20
Net 5；Filter screen 5 is in umbrella；Filter screen 5 is between water inlet end 21 and water outlet 22；It is connected by bearing 9 in device cylinder 20
There is shaft 3；Bearing 9 is set to by the support of bearing 11 in device cylinder 20；The electricity that one end of shaft 3 passes through shaft coupling 2 and motor 1
Arbor is connected；Spiral brush sifter 4 is connected in shaft 3；Spiral brush sifter 4 is located in the guard of the formation of filter screen 5, when being attached to filter screen
Sundries on 5 is more, when the pressure difference before and after filter screen 5 is more than specified value, then starts motor 1, drive spiral brush sifter 4 by sundries brush from
Filter screen 5 keeps the cleaning of filter screen 5；One end of filter screen 5 is connected with blow-off pipe 10；Blow-off pipe 10 be set to device cylinder
Blowdown valve 12 outside 20 is connected.
In the present embodiment, device cylinder 20 is equipped with differential pressure transmitter 6, for detecting the pressure difference before and after filter screen 5.
In the present embodiment, one end of blowdown valve 12 is connected with dredge pump 14；The other end of dredge pump 14 is connected with dredge pump
Outlet valve 15；Dredge pump bypass valve 16 is parallel between blowdown valve 12 and dredge pump outlet valve 15.When normal operation, it can open
Blowdown valve 12 and dredge pump bypass valve 16 carry out contact blowdown, can also according to circumstances be turned off, when blowdown to be needed
Open blowdown.
The present embodiment can collect a part of sundries to the blow-off pipe 10 of 5 tail portion of filter screen, pass through blowdown automatically in operation
Valve 12 is immediately discharged to recirculated water water return pipeline through dredge pump bypass valve 16, achievees the purpose that auto-flushing；Before and after filter screen 5
Differential pressure transmitter 6 monitor strainer operating condition, once the sundries being attached on filter screen 5 increases, differential pressure transmitter 6 indicate
More than 5KPa, then start motor 1 automatically, spiral brush sifter 4 is driven to brush down sundries from filter screen 5, and is rotated using spiral brush sifter 4
Sundries is pooled to after blow-off pipe 10 by the axial thrust of generation and the flushing strength of flow drains into recirculated water return water through blowdown valve 12
Pipeline remains the cleaning of filter screen 5；If sundries is more, start dredge pump 14 to increase filth-discharging effect.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (4)
1. a kind of recirculated water secondary filter, it is characterised in that：Including device cylinder（20）, described device cylinder（20）On set
There is water inlet end（21）The water outlet and（22）；Described device cylinder（20）It is interior to be equipped with motor（1）；Described device cylinder（20）Inside it is equipped with
Filter screen（5）；The filter screen（5）Positioned at water inlet end（21）The water outlet and（22）Between；Described device cylinder（20）Inside pass through
Bearing（9）It is connected with shaft（3）；The bearing（9）Pass through the support of bearing（11）Set on device cylinder（20）It is interior；The shaft
（3）One end pass through shaft coupling（2）With motor（1）Motor shaft be connected；The shaft（3）On be connected with spiral brush sifter（4）；Institute
State spiral brush sifter（4）Positioned at filter screen（5）In the guard of formation；The filter screen（5）One end be connected with blow-off pipe（10）；It is described
Blow-off pipe（10）With set on device cylinder（20）Outer blowdown valve（12）It is connected.
2. a kind of recirculated water secondary filter according to claim 1, it is characterised in that：Described device cylinder（20）On
Equipped with differential pressure transmitter（6）.
3. a kind of recirculated water secondary filter according to claim 1, it is characterised in that：The blowdown valve（12）One
End is connected with dredge pump（14）；The dredge pump（14）The other end be connected with dredge pump outlet valve（15）；The blowdown valve
（12）With dredge pump outlet valve（15）Between be parallel with dredge pump bypass valve（16）.
4. a kind of recirculated water secondary filter according to claim 1, it is characterised in that：The filter screen（5）In umbrella
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820092779.8U CN207871673U (en) | 2018-01-19 | 2018-01-19 | A kind of recirculated water secondary filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820092779.8U CN207871673U (en) | 2018-01-19 | 2018-01-19 | A kind of recirculated water secondary filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207871673U true CN207871673U (en) | 2018-09-18 |
Family
ID=63508291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820092779.8U Expired - Fee Related CN207871673U (en) | 2018-01-19 | 2018-01-19 | A kind of recirculated water secondary filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207871673U (en) |
-
2018
- 2018-01-19 CN CN201820092779.8U patent/CN207871673U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20200119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |