CN207500557U - A kind of unitized filter check valve - Google Patents
A kind of unitized filter check valve Download PDFInfo
- Publication number
- CN207500557U CN207500557U CN201721643171.1U CN201721643171U CN207500557U CN 207500557 U CN207500557 U CN 207500557U CN 201721643171 U CN201721643171 U CN 201721643171U CN 207500557 U CN207500557 U CN 207500557U
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- valve
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- unitized
- lead
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Abstract
The utility model discloses a kind of unitized filter check valves.The unitized filter check valve includes valve body, valve deck, spool, filter core, is equipped in the valve body and enters channel and flow pass, extension tube attached, and the bottom end of the extension tube attached is equipped with lower cover；One end of the filter core is fixed on into channel, and the other end is fixedly connected with lower cover；It is described to be equipped with valve seat into the intersection of channel and flow pass, it is equipped with valve base channel in the valve seat；The upper end of the spool is fixedly installed axle sleeve；The valve deck is equipped with the lead for being set in and being adapted in the axle sleeve and with the axle sleeve straight skidding.The unitized filter check valve has filtering and non-return dual function, not only the solid particle polluter in fluid can be avoided to be gathered on valve seat and spool, slows down impact of the fluid to valve body and spool significantly, ensures the stability of fluid flowing；And reduce production and installation cost, and pipeline equipment, installation and repair are simplified, it is rational in infrastructure, it is easy to use.
Description
Technical field
The utility model is related to valve technology fields, and in particular to a kind of unitized filter check valve.
Background technology
Fluid piping system, particularly steam condensing recovery pipe system, condensing recycling compressor water inlet are connected to non-return
Valve, check-valves water inlet need to connect gas utilization unit by filter, to ensure condensing recycling compressor safe operation and for boiler feedwater, protect
Demonstrate,prove feed-water quality.
Existing check-valves and filter are the single equipments of separation, are installed and used through being concatenated on pipeline, this both increased
The expense of the auxiliaries such as pipeline, flange, gasket is added, and the trouble for increasing installation and maintenance is inconvenient.Use existing function list
During one check-valves, fluid delivery process can generate a degree of impact to valve body and spool, and can not ensure liquid and flow
Stability；In addition, it may build up on valve seat containing solid particle polluter in fluid so that because of spool and valve when valve is closed
There is gap between seat and fit badly, it is impossible to effectively prevent medium counter flow.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of unitized filter check valves, this is combined integrated
Formula filter check valve have filtering and non-return dual function, can not only avoid the solid particle polluter in fluid be gathered in valve seat and
On spool, slow down impact of the fluid to valve body and spool significantly, ensure the stability of fluid flowing；And can reduce production and
Installation cost simplifies pipeline equipment, installation and repair, easy to use.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of unitized filter check valve, including valve body, valve deck, spool, filter core, the valve deck connects with valve seal
It connects；It is equipped in the valve body and enters channel and flow pass；The bottom into channel is equipped with to be connected with described into channel
Extension tube attached, the bottom end of the extension tube attached is equipped with lower cover；It is described to enter in channel equipped with screens ring, one end clamping of the filter core
It is fixed in the screens ring into channel, the other end of the filter core is extended into extension tube attached and is fixedly connected with lower cover；
The intersection into channel and flow pass is provided with valve seat, is equipped in the valve seat and leads to described into channel and outflow
The valve base channel that road communicates, the spool are arranged in valve body and are matched with the valve seat；The upper end of the spool is fixed and is set
It is equipped with axle sleeve；The valve deck is equipped with lead, and one end of the lead passes through the valve deck and connects with the valve deck screw thread
It connects, the other end is set in the axle sleeve and is adapted to the axle sleeve straight skidding；Buffer spring is equipped in the axle sleeve, it is described
Lead is connect by the buffer spring with the spool.
As the preferred embodiment of the utility model, the filter core is cylindrical filter sieve, and one end of the filter core is equipped with and filter
The support ring I that core is fixedly connected, the other end are equipped with the support ring II being fixedly connected with filter core.
As the more preferable scheme of the utility model, the outside wall surface of the support ring I is logical by sealing ring and the entrance
The internal face sealing clamping of screens ring in road；The support ring II is welded with the lower cover.
As the preferred embodiment of the utility model, the lower cover is tight by fixing bolt and fixing nut and the extension tube attached
It is solidly connected, the joint of the lower cover and the extension tube attached is sealed by sealing ring to be coordinated.
As the preferred embodiment of the utility model, the lower lid is equipped with mudhole, and blowdown valve is equipped in the mudhole.
As the preferred embodiment of the utility model, the valve deck passes through fixing bolt and fixing nut and institute with the valve body
It states valve body to be fastenedly connected, the joint of the valve deck and the valve body is sealed by sealing ring to be coordinated.
As the preferred embodiment of the utility model, the lead passes through one end of the valve deck to be equipped with regulation handle.
As the preferred embodiment of the utility model, the outer wall of the lead is equipped with screw thread, and valve deck is equipped with and lead phase
The threaded hole threaded sealing fit connection of matched threaded hole, lead and valve deck.
As the preferred embodiment of the utility model, the lead is cylinder, and the axle sleeve is cylindrical shape.
As the preferred embodiment of the utility model, the bottom end of the spool is equipped with the rubber seal to match with the valve seat
Layer.
Compared with prior art, the beneficial effects of the utility model are as follows：
(1) the utility model is isolated granule foreign by filter core, prevents from being gathered in valve seat and valve because of solid particle polluter
Fluid countercurrent current is caused on core, overcomes the shortcomings that check-valves is not suitable for band granule medium pipeline, expands Jie of check-valves
Matter application range.
(2) for the utility model by the fixed guide column on valve deck, the fixed hub on spool passes through lead and axle sleeve
Mutual cooperation realize that spool moves up and down, when unitized filter check valve is in operation, lead is not sent out with valve deck
Raw relative displacement, spool can be opened and closed flexibly in valve body under the action of fluid.
(3) the utility model can be prevented during the work time, spool by fixing rubber sealant in the lower face of spool
Valve seat is hit because moving up and down, valve seat is caused to damage；And opened up on valve seat with the matched ring-shaped step of spool, work as spool
During by fluid impact from flow pass, because of the presence of ring-shaped step, it is difficult to start spool, be conducive to improve combination one
The non-return effect of body formula filter check valve.
It is made as in conclusion the check-valves of existing separation with filter is improved and combined by the utility model respectively
One has filtering and non-return dual function, reduces production and installation cost, simplify pipeline equipment, installation and repair, ties
Structure is reasonable, easy to use.
Description of the drawings
Fig. 1 is the sectional side elevation of unitized filter check valve；
Fig. 2 is the partial enlarged view in A portions in Fig. 1；
Fig. 3 is the structure diagram of filter core 4.
In figure, 1- valve decks, 2- valve bodies, 3- spools, 4- filter cores, 5- fixing bolts, 6- fixing nuts, 7- sealing rings, 8- into
Enter channel, 9- flow pass, 10- extension tube attacheds, 11- lower covers, 12- screens rings, 13- valve seats, 14- valve base channels, 15- axle sleeves, 16-
Lead, 17- buffer springs, 18- support rings I, 19- support ring II, 20- regulation handle, 21- blowdown valves, 22- rubber seals
Layer.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but do not form the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
As shown in Figures 1 to 3, a kind of unitized filter check valve of the utility model, including valve deck 1, valve body 2, valve
Core 3, filter core 4, valve deck 1 are fastenedly connected with valve body 2 by fixing bolt 5 and fixing nut 6, and the joint of valve deck 1 and valve body 2
It is sealed and coordinated by sealing ring 7.It is equipped in valve body 2 and enters channel 8 and flow pass 9, be equipped with and entrance into the bottom of channel 8
The extension tube attached 10 that channel 8 connects, the bottom end of extension tube attached 10 are equipped with lower cover 11.Screens ring 12 is equipped in into channel 8；Filter core 4
One end is clamped with entering the screens ring 12 of channel 8, and the other end of filter core 4, which is extended into extension tube attached 10 and fixed with lower cover 11, to be connected
It connects.
Intersection into channel 8 and flow pass 9 is provided with valve seat 13, is equipped in valve seat 13 with entering channel 8 and stream
Go out the valve base channel 14 that channel 9 communicates, spool 3 is arranged in valve body 2 and matches with valve seat 13；The upper end of spool 3 is fixed and is set
It is equipped with longitudinal axle sleeve 15；Valve deck 1 is equipped with lead 16, and one end of lead 16 passes through valve deck 1 and connects with 1 screw thread of valve deck
It connects, the other end is set in axle sleeve 15 and is adapted to 15 straight skidding of axle sleeve；Buffer spring 17, lead 16 are equipped in axle sleeve 15
It is connect by buffer spring 17 with spool 3.
Further, filter core 4 is cylindrical filter sieve, and one end of filter core 4 is equipped with the support ring I18 being fixedly connected with filter core 4,
The other end is equipped with the support ring II19 being fixedly connected with filter core 4；The outside wall surface of support ring I18 is by sealing ring 7 with entering channel 8
The internal face sealing clamping of interior screens ring 12；Support ring II19 is welded with lower cover 11.Pass through support ring I18 and support ring II19
Clamping limiting is carried out to the both ends of filter core 4, so that when fluid is from the inside for entering valve body 2 into channel 8, filter core 4
Both ends will not come off because of the impact of fluid；Moreover, when needing to be serviced and clearing up filter core 4, lower cover 11 is removed, i.e.,
Filter core 4 can be extracted out of valve body 2, it is convenient to safeguard and clear up.
Further, lower cover 11 is equipped with mudhole, and blowdown valve 21 is equipped in mudhole.
Further, filter core 4 is made of stainless steel.
When in use, after fluid enters valve body 2, filter core 4 is isolated by the solid particle polluter in fluid, is prevented because of solid
Grain accumulation of impurities causes fluid countercurrent current on valve seat 13 and spool 3, overcomes check-valves and is not suitable for band granule medium pipeline
The shortcomings that, expand the media applications range of check-valves.
Further, the matching thread between lead 16 and valve deck 1 is sealing screw thread.Prevent fluid in valve body 2 from
It reveals in the gap of lead 16 and valve deck 1.
Further, lead 16 passes through one end of valve deck 1 to be equipped with regulation handle 20.It, can be by turning when use
Dynamic regulation handle 20, so as to drive lead 16 so that lead 16 rises or falls with respect to valve body 2 and valve deck 1, so as to adjust
The extent of elasticity of buffer spring 17, and then by the Lift of adjusting spool come the size of fluid flow in application valve body 2.
Further, lead 16 is cylinder, and axle sleeve 15 is cylindrical shape, and the gap between lead 16 and axle sleeve 15 is
0.5mm~2mm.Lead 16 is set in axle sleeve 15, opposite with axle sleeve 15 can be slided up and down, is play the guiding role.
Further, valve seat 13 is equipped with ring-shaped step (not marked in figure), and the bottom end of spool 3 is equipped with and ring-shaped step phase
Matched rubber sealant 22.It can prevent during the work time, spool 3 hits non-return valve port because moving up and down, to non-return valve port
It causes to damage.
Further, spool 3 is made of low temperature resistant iron-nickel alloy, can be up and down in valve body 2.
Operation principle：After solid particle polluter is removed by filter core 4 from the fluid for entering channel 8, generated in fluid
Pressure under, spool 4 moves up, and valve base channel 14 is opened, so that fluid passes through valve base channel 14,9 row of flow pass
Go out；When the fluid reflux from flow pass 9, it is pressed on by the own wt spool 3 of buffer spring 17 and spool 3
On valve seat 13, valve base channel 14 is closed.
The embodiment of the utility model is explained in detail, but the utility model is not limited to be retouched above in association with attached drawing
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the scope of protection of the utility model.
Claims (10)
1. a kind of unitized filter check valve, it is characterised in that：Including valve body, valve deck, spool, filter core, the valve deck with
Valve seal connects；It is equipped in the valve body and enters channel and flow pass；The bottom into channel be equipped with it is described into
Enter the extension tube attached of channel connection, the bottom end of the extension tube attached is equipped with lower cover；It is described to enter in channel equipped with screens ring, the filter core
One end be fixedly clamped in the screens ring into channel, the other end of the filter core extends into extension tube attached and and lower cover
It is fixedly connected；The intersection into channel and flow pass is provided with valve seat, is equipped in the valve seat with described into logical
The valve base channel that road and flow pass communicate, the spool are arranged in valve body and are matched with the valve seat；The spool
Upper end is fixedly installed axle sleeve；The valve deck is equipped with lead, one end of the lead pass through the valve deck and with it is described
Valve deck is threadedly coupled, and the other end is set in the axle sleeve and is adapted to the axle sleeve straight skidding；It is equipped in the axle sleeve slow
Spring is rushed, the lead is connect by the buffer spring with the spool.
2. unitized filter check valve according to claim 1, it is characterised in that：The filter core is cartridge filtration
Net, one end of filter core are equipped with the support ring I being fixedly connected with filter core, and the other end is equipped with the support ring II being fixedly connected with filter core.
3. unitized filter check valve according to claim 2, it is characterised in that：The outside wall surface of the support ring I
It is sealed and is clamped by the internal face of sealing ring and the screens ring into channel；The support ring II is welded with the lower cover
It connects.
4. unitized filter check valve according to claim 1, it is characterised in that：The lower cover passes through fixing bolt
It is fastenedly connected with fixing nut and the extension tube attached, the lower cover and the joint of the extension tube attached are matched by sealing ring sealing
It closes.
5. unitized filter check valve according to claim 1, it is characterised in that：The lower lid is equipped with blowdown
Hole, the mudhole is interior to be equipped with blowdown valve.
6. unitized filter check valve according to claim 1, it is characterised in that：The valve deck leads to the valve body
It crosses fixing bolt and fixing nut to be fastenedly connected with the valve body, the joint of the valve deck and the valve body is close by sealing ring
Envelope cooperation.
7. unitized filter check valve according to claim 1, it is characterised in that：The lead passes through the valve
One end of lid is equipped with regulation handle.
8. unitized filter check valve according to claim 1, it is characterised in that：The outer wall of the lead is equipped with
Screw thread, valve deck are equipped with the threaded hole to match with lead, the threaded hole threaded sealing fit connection of lead and valve deck.
9. unitized filter check valve according to claim 1, it is characterised in that：The lead is cylinder,
The axle sleeve is cylindrical shape.
10. unitized filter check valve according to claim 1, it is characterised in that：The bottom end of the spool is equipped with
The rubber sealant to match with the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643171.1U CN207500557U (en) | 2017-11-30 | 2017-11-30 | A kind of unitized filter check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721643171.1U CN207500557U (en) | 2017-11-30 | 2017-11-30 | A kind of unitized filter check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500557U true CN207500557U (en) | 2018-06-15 |
Family
ID=62507772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721643171.1U Active CN207500557U (en) | 2017-11-30 | 2017-11-30 | A kind of unitized filter check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500557U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506535A (en) * | 2018-07-04 | 2018-09-07 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve |
| CN108547980A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
| CN111173943A (en) * | 2019-11-29 | 2020-05-19 | 江苏亿阀股份有限公司 | Dual-control efficient check valve |
| CN113847746A (en) * | 2021-09-24 | 2021-12-28 | 浙江沃克制冷设备有限公司 | High-power two-stage screw refrigerating unit |
-
2017
- 2017-11-30 CN CN201721643171.1U patent/CN207500557U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506535A (en) * | 2018-07-04 | 2018-09-07 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve |
| CN108547980A (en) * | 2018-07-04 | 2018-09-18 | 德阳市迪信佳阀门制造有限公司 | A kind of check valve with operating device |
| CN111173943A (en) * | 2019-11-29 | 2020-05-19 | 江苏亿阀股份有限公司 | Dual-control efficient check valve |
| CN111173943B (en) * | 2019-11-29 | 2023-08-08 | 江苏亿阀股份有限公司 | Dual-control efficient check valve |
| CN113847746A (en) * | 2021-09-24 | 2021-12-28 | 浙江沃克制冷设备有限公司 | High-power two-stage screw refrigerating unit |
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