CN205578269U - Antifouling liquid flow reversal device of roots's fan - Google Patents
Antifouling liquid flow reversal device of roots's fan Download PDFInfo
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- CN205578269U CN205578269U CN201620243539.4U CN201620243539U CN205578269U CN 205578269 U CN205578269 U CN 205578269U CN 201620243539 U CN201620243539 U CN 201620243539U CN 205578269 U CN205578269 U CN 205578269U
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- roots
- fan
- roots blower
- bend pipe
- medium filter
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Abstract
The utility model relates to an antifouling liquid flow reversal device of roots's fan, a serial communication port, antifouling liquid flow reversal device includes filter medium filtration ware, controller, water drainage tank, return bend and roots's fan, the controller includes PLC controller and pneumatic discharge valve, set up check valve and the soft joint of rubber between return bend and the roots's fan. This technical scheme sets up " intersection of " type return bend on roots's fan gas transmission pipeline, it mainly acts on and blocks and delay the interior foul solution refluence of filter to go into roots's fan, prevents the problem of filter medium filtration ware internal pressure liquid refluence income roots fan effectively.
Description
Technical field
This utility model relates to a kind of anti-guiding device, is specifically related to a kind of roots blower anti-dirtying liquid counterflow unit, belongs to
Filter apparatus technical field.
Background technology
In Treatment of Industrial Water, medium (such as quartz sand, anthracite etc.), if the simple water of filter carries out backwash, needs
Consuming substantial amounts of water resource, it not only reduces the cyclic utilization rate of water system, and requires supplementation with a large amount of industrial fresh water and increasing
Add water treatment agent cost.It was verified that the backwash mode of " first air purge-rear aqueous vapor is shuffled-washed " is the most effective, and
And water consumption is few.Therefore, the most constantly used, such as prunus mume (sieb.) sieb.et zucc. by industry (especially metallurgy, sewage disposal etc.) water treatment system
Steel one, two steel-making continuous casting circulation, a hot-rolling laminar water processes and two hot rolling turbid circulating water systems, cold rolling and two steel-making are de-
Salt water station filter.The gas backwash of medium filter requires that air demand is big, pressure is low, and therefore, air feed equipment is substantially all selection
Roots blower.Roots blower is a kind of positive displacement two-spool compressor tool, and its operating characteristic is stable, and mechanical efficiency is high, but rotor
Gap and rotor are the least with the gap of side plate, and rotor and casing typically use cast iron to be fabricated by.In filter backwash,
If occur that filter backwash intake valve close is dead, because certain reason is interrupted, air intake valve is closed not in time or sieve in automatic back-washing
The situations such as the abrasion of thatch blower fan driving belt comes off, the driving electrical fault of roots blower (such as winding scaling loss, winding over the ground etc.), are situated between
The pressure sewage (liquid) that has in mass filter blows back in roots blower readily along air delivering pipeline, is brought into the dirt of roots blower by water
Self corrosion of mud, foreign material and rotor all will cause roots blower rotor blade to kill.Roots blower water inlet not only affects after killing
The normal backwash of medium filter, and its intractability is relatively big, and the cycle is longer, wastes time and energy costly.Therefore, exigence
A kind of device solves above-mentioned technical problem.
Summary of the invention
This utility model is just for technical problem present in prior art, it is provided that a kind of roots blower anti-dirtying liquid flows backwards
Device, this technical scheme is effectively prevented the problem that pressure liquid in medium filter blows back into roots blower.
To achieve these goals, the technical solution of the utility model is as follows, a kind of roots blower anti-dirtying liquid counterflow unit,
It is characterized in that, described anti-dirtying liquid counterflow unit includes medium filter, controller, rhone, bend pipe and roots blower, institute
State controller and include PLC and pneumatic air bleeding valve, check-valves and rubber soft-jointing are set between described bend pipe and roots blower
Head.
A kind of improving as of the present utility model, described bend pipe is set to " ∩ " type bend pipe, its Main Function be stop and
In delaying filter, soiling solution blows back into roots blower, and in being effectively prevented medium filter, pressure liquid blows back into asking of roots blower
Topic.
As a kind of improvement of the present utility model, described rhone arranges tank cover plate.
A kind of improving as of the present utility model, described medium filter is provided above feed liquor horn mouth, and described bend pipe is
High point level height exceeds feed liquor horn mouth level height 200 300mm.When roots blower breaks down shutdown (as motor burns
Ruin, the fault such as motor tripping operation over the ground) time, owing to the pneumatic cut-off valve of medium filter also has little time to close, therefore in filter
Sewage (liquid) quickly will backwash air inlet pipe along blower fan and flow backwards, and at this moment " ∩ " type bend pipe will be to blowing back into appendix with its elevation
The soiling solution on road plays the effect stopping and delaying, for beating of the startup of standby fan, the closedown of air intake valve and pneumatic drain valve
Open and provide action time.
Relative to prior art, this utility model has the advantage that, 1) and technical scheme global design is ingenious, structure is tight for this
Gather；2) this technical scheme arranges " ∩ " type bend pipe on roots blower gas pipeline, and its Main Function is to stop and delay to filter
In device, soiling solution blows back into roots blower, is effectively prevented the problem that pressure liquid in medium filter blows back into roots blower；3) should
The caliber of technical side " ∩ " type bend pipe is identical with roots blower gas transmission main caliber and " ∩ " type bend pipe top peak level
Height should exceed medium filter water-inlet horn mouth level height 200～300mm.When roots blower breaks down shutdown (such as electricity
The faults such as machine burning is ruined, motor tripping operation over the ground) time, owing to the pneumatic cut-off valve of medium filter also has little time to close, therefore filter
Interior sewage (liquid) quickly will backwash air inlet pipe along blower fan and flow backwards, and at this moment " ∩ " type bend pipe will be defeated to blowing back into its elevation
The soiling solution of air pipe plays the effect stopping and delaying, for the startup of standby fan, the closedown of air intake valve and pneumatic drain valve
Open and provide action time.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram；
In figure: 1-roots blower, 2-rubber soft joint, 3-check-valves, 4-tank cover plate, 5-" ∩ " type bend pipe, 6-is pneumatic
Drain valve, 7-rhone, 8-PLC controller, 9-medium filter, 10-feed liquor horn mouth.
Detailed description of the invention:
In order to deepen understanding of the present utility model, below in conjunction with the accompanying drawings the present embodiment is described in detail.
Embodiment 1: seeing Fig. 1, a kind of roots blower anti-dirtying liquid counterflow unit, described anti-dirtying liquid counterflow unit includes medium
Filter 9, controller, rhone 7, bend pipe and roots blower 1, described controller includes PLC 8 and pneumatic air bleeding valve
6, check-valves 3 and rubber soft joint 2 are set between described bend pipe and roots blower 1.
Embodiment 2: see Fig. 1, as a kind of improvement of the present utility model, described bend pipe is set to " ∩ " type bend pipe 5, its
Main Function is that in stopping and delaying filter, soiling solution blows back into roots blower, and in being effectively prevented medium filter, pressure liquid falls
The problem flowing into roots blower, described rhone arranges tank cover plate 4.Remaining structure is identical with embodiment 1 with advantage.
Embodiment 3: see Fig. 1, as a kind of improvement of the present utility model, described medium filter is provided above feed liquor loudspeaker
Mouth 10, described bend pipe peak level height exceeds feed liquor horn mouth level height 200 300mm.When roots blower occurs
During disorderly closedown (such as faults such as burn-down of electric motor, motor tripping operations over the ground), owing to the pneumatic cut-off valve of medium filter also has little time
Closing, therefore the sewage (liquid) in filter quickly will backwash air inlet pipe along blower fan and flow backwards, at this moment " ∩ " type bend pipe is high with it
Journey by playing the effect stopping and delaying to the soiling solution blowing back into air delivering pipeline, for startup, the pass of air intake valve of standby fan
Close and provide action time with opening of pneumatic drain valve.
Operation principle: detailed description of the invention is as follows,
(1) seeing Fig. 1, " ∩ " type bend pipe is arranged on roots blower outlet air delivering pipeline, and its caliber is defeated with roots blower
Gas house steward's caliber is identical, stop that effectively its top peak level height should exceed media filtration in order to ensure " ∩ " type bend pipe
The level height 200～300mm of device water-inlet horn mouth；
(2) air delivering pipeline between " ∩ " type bend pipe and medium filter and the lowest part installation of next-door neighbour's " ∩ " type bend pipe
One pneumatic drain valve 6, this valve is by PLC control (can remote auto/manually, the other manual operation of machine), and participates in medium filter
Automatic back-washing program.Why it is however emphasized that next-door neighbour's " ∩ " type bend pipe, it is because sewage (liquid) in there is medium filter and falls
During stream, open this pneumatic operated valve and can reduce water (liquid) stream climbed along " ∩ " type bend pipe rapidly.Valve is arranged on pipeline minimum point
It is to ensure that pipeline emptying can be thoroughly.The size of this operated pneumatic valve is the most identical with supply air line caliber, so can be relatively
Completing pipeline emptying in short time, if the filtration yield of medium filter is few, pressure is low, in order to reduce investment, it is possible to suitably drop
This valve aperture low.This valve export need to run in tank or gutter, and arranges cover plate, in order to avoid water (liquid) flies when valve is opened
Spatter, pollute surrounding enviroment；
(3) pneumatic drain valve need to reasonable setting in medium filter automatic back-washing PLC sequential, gas is reasonably set
Dynamic drain valve position in medium filter automatic back-washing sequential, is also the crucial ring avoiding sewage (liquid) refluence roots blower
Joint.Pneumatic drain valve action situation in roots blower backwash process is: 1. close pneumatic sewage drain valve, starts roots blower,
Open medium filter air purge intake valve, the gas after roots blower supercharging is sent in medium filter, loosen filtrate；2. close
Close medium filter backwash intake valve, open pneumatic drain valve, stop roots blower.Before so can ensure that roots blower stops
Its outlet conduit is filled with gas to pneumatic sewage drain valve section, and sewage can be avoided to flow backwards.After roots blower stops, if medium
Filter backwash air inlet valve internal leakage, at this moment, being inverted " ∩ " bend pipe can have resistance, slow effect, due to pneumatic to leakage sewage
Drain valve is in minimum point, sewage so can be made to be discharged by low spot, it is to avoid sewage refluence.
At least one in technical characteristic described in embodiment 2,3,4 and embodiment 1 can also be combined shape by this utility model
The embodiment of Cheng Xin.
It should be noted that above-described embodiment, be not used for limiting protection domain of the present utility model, above-mentioned technical side
Equivalents done on the basis of case or replacement each fall within this utility model scope of the claimed protection.
Claims (4)
1. a roots blower anti-dirtying liquid counterflow unit, it is characterised in that described anti-dirtying liquid counterflow unit include medium filter,
Controller, rhone, bend pipe and roots blower, described controller includes PLC and pneumatic air bleeding valve, described bend pipe and
Check-valves and rubber soft joint are set between roots blower.
Roots blower anti-dirtying liquid counterflow unit the most according to claim 1, it is characterised in that described bend pipe is set to " ∩ "
Type bend pipe.
Roots blower anti-dirtying liquid counterflow unit the most according to claim 2, it is characterised in that on described rhone, water is set
Tank cover plate.
Roots blower anti-dirtying liquid counterflow unit the most according to claim 3, it is characterised in that above described medium filter
Arranging feed liquor horn mouth, described bend pipe peak level height exceeds feed liquor horn mouth level height 200 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620243539.4U CN205578269U (en) | 2016-03-28 | 2016-03-28 | Antifouling liquid flow reversal device of roots's fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620243539.4U CN205578269U (en) | 2016-03-28 | 2016-03-28 | Antifouling liquid flow reversal device of roots's fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578269U true CN205578269U (en) | 2016-09-14 |
Family
ID=56866800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620243539.4U Active CN205578269U (en) | 2016-03-28 | 2016-03-28 | Antifouling liquid flow reversal device of roots's fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108654194A (en) * | 2018-06-06 | 2018-10-16 | 苏州耀水源环境科技有限公司 | A kind of sewage purification filter |
| CN113318506A (en) * | 2021-05-31 | 2021-08-31 | 浙江伟鸿水处理设备有限公司 | Water and gas distribution system of flap filter |
-
2016
- 2016-03-28 CN CN201620243539.4U patent/CN205578269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108654194A (en) * | 2018-06-06 | 2018-10-16 | 苏州耀水源环境科技有限公司 | A kind of sewage purification filter |
| CN108654194B (en) * | 2018-06-06 | 2020-06-30 | 深圳市恒大兴业环保科技有限公司 | Sewage purification filter |
| CN113318506A (en) * | 2021-05-31 | 2021-08-31 | 浙江伟鸿水处理设备有限公司 | Water and gas distribution system of flap filter |
| CN113318506B (en) * | 2021-05-31 | 2022-02-01 | 浙江伟鸿水处理设备有限公司 | Water and gas distribution system of flap filter |
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