CN206886891U - boiler water circulating pump with external magnetic filter - Google Patents
boiler water circulating pump with external magnetic filter Download PDFInfo
- Publication number
- CN206886891U CN206886891U CN201720441163.2U CN201720441163U CN206886891U CN 206886891 U CN206886891 U CN 206886891U CN 201720441163 U CN201720441163 U CN 201720441163U CN 206886891 U CN206886891 U CN 206886891U
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- Prior art keywords
- filter
- plate
- magnetic
- external magnetic
- sponge
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Abstract
Boiler water circulating pump with external magnetic filter, including the pump housing and external magnetic filter, external magnetic filter includes filter vat, bung, more Magnetic filtration device rods, and the bucket bottom of filter vat is provided with magnetic sheet, iron plate is provided with above magnetic sheet, sponge plate is provided with above iron plate；Magnetic filtration device rod includes cylindrical bar magnet, and the outer cover of bar magnet is provided with the cylindrically coiled spring being engaged with bar magnet, and the outside of cylindrically coiled spring is provided with positive six prismsby shape sponge stick.The utility model has the beneficial effect that：（1）External magnetic filtration device structure in the boiler water circulating pump is simple, installation, maintenance, overhaul it is easy to operate；（2）After high-pressure cooling water in water under high pressure pipeline is tentatively filtered by filter pipe, Magnetic filtration device rod, the sponge plate secondary filter coordinated with magnetic sheet are recycled, iron rust impurity is difficult for drop-off, and filter efficiency significantly improves, and winding, bearing are significantly reduced by the probability that iron rust wears.
Description
Technical field
It the utility model is related to boiler water circulating pump technical field, and in particular to the stove water circulation with external magnetic filter
Pump.
Background technology
In the operation of thermal power unit boiler, the water density in down-comer is more than the density of steam water interface in water-cooling wall,
The density contrast forms the flow head of boiler.When water is close to during critical point, density contrast reduces, and is not enough to maintain flow head, in
It is to have installed boiler water circulating pump additional in steam/water circulating down-comer to maintain enough flow heads, can with ensure boiler water cycle
By property.
Boiler water circulating pump is made up of a centrifugal pump of single stage type and a wet stator-induced electromagnetic machine, and above-mentioned part is installed in one
In individual public pressure vessel.The container is made up of three pump case, motor casing and motor cover parts, and motor suspension is under pump case, in system
Cold demineralized water is filled with pressure, without sealing between centrifugal pump of single stage type and induction machine.
Because the gap of winding and bearing is extremely close, therefore granule foreign must not be contained in high-pressure cooling water, in high pressure
Filter is must be provided with water lines.Currently used filter is that filter press system casing, lamina tecti and bar magnet form,
By bolt connection, filter is located in the inlet manifold of high pressure cooling system, and three pumps share.When high-pressure feed water pipeline has iron
During rust impurity, although iron rust can be filtered by bar magnet, with increasing for rust content, the iron rust impurity that bar magnet shows is easily de-
Fall, cause the filter efficiency of filter to decline, easily winding, bearing are caused to damage.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, there is provided the stove with external magnetic filter
Water-circulating pump, concrete technical scheme are：
Boiler water circulating pump with external magnetic filter, including the pump housing and external magnetic filter, the external
Magnetic filter includes filter vat, bung, more Magnetic filtration device rods, is bolted between the filter vat and bung；Institute
The bucket bottom for stating filter vat is provided with magnetic sheet, and iron plate is provided with above magnetic sheet, is provided with sponge plate above iron plate, sponge plate with
Iron plate is fixedly connected；The upper end of the Magnetic filtration device rod is fixedly connected with bung, the lower end of the Magnetic filtration device rod and sponge plate
Contact；The Magnetic filtration device rod includes cylindrical bar magnet, and the outer cover of bar magnet is provided with the cylindrically coiled spring being engaged with bar magnet,
The outside of cylindrically coiled spring is provided with positive six prismsby shape sponge stick, and the center of sponge stick is provided with mutually fits with cylindrically coiled spring
The cylindrical hole matched somebody with somebody, sponge stick are fixedly connected with cylindrically coiled spring；The side wall of the filter vat is provided with drainpipe and entered
Water pipe, the drainpipe are arranged on the top of sponge plate and the inner chamber of drainpipe and connected with the inner chamber of filter vat, the water inlet pipe
The top of drainpipe and the inner chamber of water inlet pipe is arranged on to connect with the inner chamber of filter vat.
As the improvement of above-mentioned technical proposal, the head end of the water inlet pipe is additionally provided with filter pipe, filter pipe include body,
Adapter, the threads connection of head end and body of the water inlet pipe and the head end of water inlet pipe are arranged on the inside of body, described
The outside of water inlet pipe is provided with the first locking screwed pipe, the first packing ring, and the first locking screwed pipe is threadedly coupled with water inlet pipe, described
First packing ring is arranged between the first locking screwed pipe and body；The tail end of the adapter is threadedly coupled and taken over the head end of body
Tail end be arranged on the inside of body, the outside of the adapter is provided with the second locking screwed pipe, second packing ring, second locking
Screwed pipe is threadedly coupled with adapter, and the second packing ring is arranged between the second locking screwed pipe and body；The inside of the body is consolidated
Provided with the first filter plate, the second filter plate, filter core, filter core is arranged between the first filter plate and the second filter plate.
As the improvement of above-mentioned technical proposal, handle is installed with above the bung.
As the improvement of above-mentioned technical proposal, matching somebody with somebody between the cylindrically coiled spring and bar magnet is combined into interference fit.
The beneficial effects of the utility model are：（1）The external magnetic filtration device structure is simple, installation, maintenance, overhauls behaviour
Make convenient and swift；（2）After high-pressure cooling water in water under high pressure pipeline is tentatively filtered by filter pipe, recycling Magnetic filtration device rod,
The sponge plate secondary filter coordinated with magnetic sheet, iron rust impurity is difficult for drop-off, and filter efficiency significantly improves, and winding, bearing are by iron rust
The probability of abrasion significantly reduces.
Brief description of the drawings
Accompanying drawing 1 is the boiler water circulating pump structural representation described in the utility model with external magnetic filter；
Accompanying drawing 2 is external magnetic filter structure schematic representation described in the utility model；
Accompanying drawing 3 is Magnetic filtration device rod structural representation described in the utility model.
Embodiment
The effect of to make to architectural feature of the present utility model and being reached, has a better understanding and awareness, to compared with
Good embodiment and accompanying drawing coordinate detailed description, are described as follows：
As shown in Fig. 1 ~ 3, the boiler water circulating pump with external magnetic filter, including the pump housing 1 and external magnetic
Filter 2, the external magnetic filter 2 include filter vat 21, bung 22, more Magnetic filtration device rods 23, filter vat 21 by
High-carbon steel is made and is showing Nickel Plating Treatment；It is bolted between the filter vat 21 and bung 22；The filter vat
21 bucket bottom is provided with magnetic sheet 24, and magnetic sheet 24 is the plate body made of magnet, and the top of magnetic sheet 24 is provided with iron plate 25, iron plate 25
Top be provided with sponge plate 26, sponge plate 26 is fixedly connected with iron plate 25；The upper end of the Magnetic filtration device rod 23 and bung 22
It is fixedly connected, the lower end of the Magnetic filtration device rod 23 contacts with sponge plate 26；The Magnetic filtration device rod 23 includes cylindrical bar magnet
231, bar magnet 231 is bar-shaped magnet, and the outer cover of bar magnet 231 is provided with the cylindrically coiled spring 232 being engaged with bar magnet 231, circle
Post helical spring 232 is made up of spring steel, and matching somebody with somebody between the cylindrically coiled spring 232 and bar magnet 231 is combined into interference fit, circle
The outside of post helical spring 232 is provided with positive six prismsby shape sponge stick 233, and the center of sponge stick 233 is provided with and cylindrical screw
The cylindrical hole that spring 232 is adapted, sponge stick 233 are fixedly connected with cylindrically coiled spring 232；The side of the filter vat 21
Wall is provided with drainpipe 211 and water inlet pipe 212, and the drainpipe 211 is arranged on the interior of the top of sponge plate 26 and drainpipe 211
Chamber connects with the inner chamber of filter vat 21, the water inlet pipe 212 be arranged on the top of drainpipe 211 and the inner chamber of water inlet pipe 212 with
The inner chamber connection of filter vat 21.Further, the head end of the water inlet pipe 212 is additionally provided with filter pipe, and filter pipe includes body
31st, adapter 32, the head end of the water inlet pipe 212 is connected with the threads of body 31 and the head end of water inlet pipe 212 is arranged on pipe
The inside of body 31, the outside of the water inlet pipe 212 are provided with the first locking screwed pipe 33, the first packing ring 34, first locking screw
Pipe 33 is threadedly coupled with water inlet pipe 212, and first packing ring 34 is arranged between the first locking screwed pipe 33 and body 31；It is described to connect
The tail end of pipe 32 is threadedly coupled with the head end of body 31 and the tail end of adapter 32 is arranged on the inside of body 31, the adapter 32
Outside is provided with the second locking screwed pipe 35, second packing ring 36, and the second locking screwed pipe 35 is threadedly coupled with adapter 32, and described the
Two packing rings 36 are arranged between the second locking screwed pipe 35 and body 31；The body 31 is fixedly provided with the first filter plate 37,
Two filter plates 38, filter core 39, filter core 39 are PP filter cores, and filter core 39 is arranged between the first filter plate 37 and the second filter plate 38.
When high-pressure feed water pipeline has iron rust impurity, the larger iron rust impurity of volume is first filtered by the first filter plate 37, second
Plate 38, filter core 39 tentatively filter, and the iron rust impurity of the smaller size smaller of residual, can be by magnetic mistake during by filter vat 21
Filter stick 23 adsorbs, and after double filtration, can significantly dispose the iron rust impurity in high-pressure cooling water.Wherein, bar magnet 231 has
Be magnetic, cylindrically coiled spring 232 is not only able to significantly improve the adsorption area of bar magnet 231, and cylindrically coiled spring 232 with
Matching somebody with somebody between bar magnet 231 is combined into interference fit, is also convenient for subsequently changing cylindrically coiled spring 232 and sponge stick 233；Residual compared with
The iron rust impurity of small size is adsorbed under by the attraction of bar magnet 231 and cylindrically coiled spring 232 by sponge stick 233, sponge stick 233
For loose and porous structure, even if the content of the iron rust of the adsorption of sponge stick 233 increases, the iron rust impurity of smaller size smaller is by sponge
Aperture retention in rod 233 is attracted by the magnetic force on bar magnet 231 and cylindrically coiled spring 232, can effectively alleviate iron rust impurity
Caducous problem, improve filter efficiency；Meanwhile sponge stick 233 is positive six prismsby shape, not only surface area is big, and its surface
It is not curved surface, is easy to iron rust impurity to enter in the aperture in sponge stick 233；The cost of sponge stick 233 is low, when need change sponge stick
When 233, it is only necessary to open bung 22, cylindrically coiled spring 232 and sponge stick 233, new cylindrical screw are taken off from bar magnet 231
It is integral that spring 232 and sponge stick 233 can utilize glue to be bonded, and be conveniently replaceable, repair.
Because the drainpipe 211 is arranged on the top of sponge plate 26, the water inlet pipe 212 is arranged on drainpipe 211
Top, the time of contact of the fluid and Magnetic filtration device rod 23 in filter vat 21 is improved, further improves filter efficiency；Even if magnetic
Some the micro iron rust impurity adsorbed on filter stick 23 flow to drainpipe 211 by fluid impact, in this process also can be by magnetic sheet
24 adsorb and are trapped on sponge plate 26, and the short texture of sponge plate 26 is porous, and iron rust impurity is retained by sponge plate 26, is not easy to send out
It is raw to depart from.When needing to change sponge plate 26, it is only necessary to open bung 22, remove old sponge plate 26 and iron plate 25, new sea
Nian Jie integral using glue between continuous plate 26 and iron plate 25, iron plate 25 adsorbs fixation by magnetic sheet 24, is convenient for changing, repairs.
Overall structure can be made in first filter plate 37, the second filter plate 38, filter core 39 and body 31, when need more to renew
When one filter plate 37, the second filter plate 38, filter core 39, the first locking screwed pipe 33, second locking screwed pipe 35 is turned on, then turn on body 31 to make
Body 31, adapter 32, water inlet pipe 212 disengage, change a new body 31, then tighten the locking of body 31, first screwed pipe 33,
Second locking screwed pipe 35, the first packing ring 34, second packing ring 36 have after the first locking locking screwed pipe 35 of screwed pipe 33, second is tightened
The effect of anti-leak；The filter pipe of said structure, it is not only able to tentatively filter the iron rust impurity in high-pressure cooling water, and
And installation, to overhaul maintenance operation simple and convenient.
Further, for convenience of changing, repairing, the top of the bung 22 is installed with handle 221.
The beneficial effects of the utility model are：（1）The external magnetic filtration device structure is simple, installation, maintenance, overhauls behaviour
Make convenient and swift；（2）After high-pressure cooling water in water under high pressure pipeline is tentatively filtered by filter pipe, recycling Magnetic filtration device rod,
The sponge plate secondary filter coordinated with magnetic sheet, iron rust impurity is difficult for drop-off, and filter efficiency significantly improves, and winding, bearing are by iron rust
The probability of abrasion significantly reduces.
It should be understood by those skilled in the art that the utility model is not restricted to the described embodiments, above-described embodiment and
Simply principle of the present utility model described in specification, this practicality on the premise of the spirit and scope of the utility model is not departed from
New also to have various changes and modifications, these changes and improvements are both fallen within claimed the scope of the utility model.This
The protection domain of utility model requirement is defined by appended claims and its equivalent.
Claims (4)
1. the boiler water circulating pump with external magnetic filter, including the pump housing（1）With external magnetic filter（2）, its feature
It is：The external magnetic filter（2）Including filter vat（21）, bung（22）, more Magnetic filtration device rods（23）, the mistake
Lauter tub（21）And bung（22）Between be bolted；The filter vat（21）Bucket bottom be provided with magnetic sheet（24）, magnetic sheet
（24）Top be provided with iron plate（25）, iron plate（25）Top be provided with sponge plate（26）, sponge plate（26）With iron plate（25）
It is fixedly connected；The Magnetic filtration device rod（23）Upper end and bung（22）It is fixedly connected, the Magnetic filtration device rod（23）Lower end
With sponge plate（26）Contact；The Magnetic filtration device rod（23）Including cylindrical bar magnet（231）, bar magnet（231）Outer cover be provided with
With bar magnet（231）The cylindrically coiled spring being engaged（232）, cylindrically coiled spring（232）Outside be provided with positive six prismsby shape
Sponge stick（233）, sponge stick（233）Center be provided with and cylindrically coiled spring（232）The cylindrical hole being adapted, sponge
Rod（233）With cylindrically coiled spring（232）It is fixedly connected；The filter vat（21）Side wall be provided with drainpipe（211）With enter
Water pipe（212）, the drainpipe（211）It is arranged on sponge plate（26）Top and drainpipe（211）Inner chamber and filter vat
（21）Inner chamber connection, the water inlet pipe（212）It is arranged on drainpipe（211）Top and water inlet pipe（212）Inner chamber and mistake
Lauter tub（21）Inner chamber connection.
2. the boiler water circulating pump according to claim 1 with external magnetic filter, it is characterised in that：The water inlet pipe
（212）Head end be additionally provided with filter pipe, filter pipe includes body（31）, adapter（32）, the water inlet pipe（212）Head end with
Body（31）Threads connection and water inlet pipe（212）Head end be arranged on body（31）Inside, the water inlet pipe（212）
Outside be provided with the first locking screwed pipe（33）, the first packing ring（34）, the first locking screwed pipe（33）With water inlet pipe（212）Spiral shell
Line connects, first packing ring（34）It is arranged on the first locking screwed pipe（33）And body（31）Between；The adapter（32）Tail
End and body（31）Head end threaded connection and take over（32）Tail end be arranged on body（31）Inside, the adapter（32）'s
Outside is provided with the second locking screwed pipe（35）, second packing ring（36）, the second locking screwed pipe（35）With adapter（32）Screw thread connects
Connect, the second packing ring（36）It is arranged on the second locking screwed pipe（35）And body（31）Between；The body（31）Inside consolidate
Provided with the first filter plate（37）, the second filter plate（38）, filter core（39）, filter core（39）It is arranged on the first filter plate（37）With the second filter plate
（38）Between.
3. the boiler water circulating pump according to claim 1 with external magnetic filter, it is characterised in that：The bung
（22）Top be installed with handle（221）.
4. the boiler water circulating pump according to claim 1 with external magnetic filter, it is characterised in that：The cylinder spiral shell
Revolve spring（232）With bar magnet（231）Between with being combined into interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441163.2U CN206886891U (en) | 2017-04-25 | 2017-04-25 | boiler water circulating pump with external magnetic filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441163.2U CN206886891U (en) | 2017-04-25 | 2017-04-25 | boiler water circulating pump with external magnetic filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206886891U true CN206886891U (en) | 2018-01-16 |
Family
ID=61324828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720441163.2U Expired - Fee Related CN206886891U (en) | 2017-04-25 | 2017-04-25 | boiler water circulating pump with external magnetic filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206886891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630685A (en) * | 2018-11-13 | 2019-04-16 | 扬州弘跃机械有限公司 | A kind of axial-flow pump double mechanical seal |
-
2017
- 2017-04-25 CN CN201720441163.2U patent/CN206886891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630685A (en) * | 2018-11-13 | 2019-04-16 | 扬州弘跃机械有限公司 | A kind of axial-flow pump double mechanical seal |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200425 |