CN206138837U - Cross -flow back flush ceramic membrane liquid ammonia deoiling filter equipment - Google Patents
Cross -flow back flush ceramic membrane liquid ammonia deoiling filter equipment Download PDFInfo
- Publication number
- CN206138837U CN206138837U CN201621157218.9U CN201621157218U CN206138837U CN 206138837 U CN206138837 U CN 206138837U CN 201621157218 U CN201621157218 U CN 201621157218U CN 206138837 U CN206138837 U CN 206138837U
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- Prior art keywords
- liquefied ammonia
- ceramic membrane
- filter
- oil removing
- tank body
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Abstract
The utility model discloses a cross -flow back flush ceramic membrane liquid ammonia deoiling filter equipment, including jar body (1), imports of liquid ammonia pipeline (3), liquid ammonia export pipeline (4) and discharge pipeline (5), its characterized in that: the jar body (1) on still be equipped with under the chimney filter baffle (8), the chimney filter on under baffle (6) and the chimney filter baffle (8) cut apart into three inclosed upper plenum (9), well cavity (10) and time cavity (11) with the jar body (1), the jar body (1) go up and is lieing in cavity chamber (10) and locate to be equipped with back flush pipeline (12), liquid ammonia export pipeline (4) also is arranged in cavity (10), filter tube (7) for ceramic membrane deoiling filter tube (7), imports of liquid ammonia pipeline (3) and liquid ammonia export pipeline (4) on be equipped with pressure measurement. The utility model discloses a filter equipment can carry out the back flush to the filter tube, has strengthened the life of filter tube and the security of work.
Description
Technical field
This utility model is related to liquefied ammonia filtration art, in particular to a kind of cross-current type backwash ceramic membrane liquefied ammonia
Oil removing defecator.
Background technology
Liquefied ammonia, is the ammonia of liquefaction, is a kind of colourless toxic gas for having a pungent odor, easily gasification volatilization.Therefore,
Ammonia is mixed with air or oxygen and can form explosive mixture, and its fire risk belongs to 2 articles of Class B.Ammonia can be attacked
Moist skin, mucosa and eyes, can cause deep coughs, bronchospasm, acute lung edema, or even can cause blind and death by suffocation
Die.
Ammonia is a kind of broad-spectrum industrial chemicals, and particularly current coal-fired power plant of China controls the technology of NOx emission
Measure, generally using SCR SCR technologies ripe in the world, before fume emission, by spraying ammonia flow meter
Control, sprays into a certain proportion of gas ammonia (NH3), there is catalytic reduction reaction in gas ammonia, NOx is reduced to harmless with NOx in flue gas
N2And H2O, reaches the purpose of NOx in removing flue gas；The raw material that at present liquefied ammonia production is generally adopted be natural gas, mink cell focus and
Coal, in liquefied ammonia production each link of accumulating is synthesized to, all inevitably residual, entrained particles impurity and oiliness pollutant,《Liquid
Anhydrous ammonia GB 536-88》It is divided into certified products, Grade A and high-class product Three Estate in national standard, allows wherein in high-class product
Containing moisture 0.1%≤, oil content 5mg/Kg≤(gravimetric method), iron content 1mg/Kg≤, these trace impurities in liquefied ammonia,
There is no any problem, but the reducing agent gas ammonia that coal-fired power plant's SCR flue gas denitrification systems are used during as general industrial chemicals,
It is to be obtained by liquefied ammonia evaporation, after liquefied ammonia evaporation, greasy dirt and ferrum will be deposited, blocking valve, instrument, and a part of particle impurity is just
Can be suspended in gas ammonia, by Pipeline transport, spray ammonia flow meter and miscellaneous equipment are together transported to gas ammonia, in spray ammonia flow meter
Cage structure is accurate, causes spray ammonia flow meter frequently to block.Therefore to meeting the liquefied ammonia of national standard, micro- to what is wherein contained
The fine filtering of amount impurity and the minimizing technology of mink cell focus are the keys for solving current predicament.
Liquefied ammonia defecator of the prior art is mainly included with lower component：Tank body, supporting leg, liquefied ammonia import, liquefied ammonia outlet,
Blowoff valve, tank interior is provided with the coarse separation filter element of filtration, and liquefied ammonia is entered in tank body through poly- from liquefied ammonia import
Knot separates filter element filtering and will filter out containing miscellaneous oil, other impurities in liquefied ammonia, and the liquefied ammonia after filtration is excluded from liquefied ammonia outlet,
Coarse separation filter element easily piles up dirt during long-term use, bad, the current coalescence of filter effect after filter element is blocked
With the material all composite fibres for separating filter element, filter element needs periodic replacement, filter element to rinse when being filled into a certain amount of, it is impossible to anti-
Use again, increase operating cost and manpower maintenance cost, it is well known that liquefied ammonia belongs to the virose dangerous materials of inflammable and explosive tool,
Transport to liquefied ammonia, storage and processing procedure will exactissima diligentia, the filter element filtered to liquefied ammonia in prior art is due to being once
Sex aids, half a year to one-year age is accomplished by changing once, in order to ensure safety, to put to carrying out nitrogen in tank body during replacing
Change, program is very loaded down with trivial details, trouble, and each replacing all has uncertain danger, so reducing the replacing of filter element
It is necessary.
After filtration and separation that liquefied ammonia of the prior art passes through coarse separation filter element, although certain taking off can be reached
The purpose of water, oil removing and remove impurity, but filter element is through the filtration of a period of time, is trapped granule and will be formed on filter element film surface and pollutes
Layer, increases filtration resistance, and in the case where operating pressure is constant, the filtration transmitance of filter element film will decline, due to filter element filter
The selection of material reason itself and filter design defect, it is impossible to carry out backwash to filter, can only change, both to filter element
Increase cost, also increase labor intensity and danger that personnel safeguard.
Utility model content
The purpose of this utility model is to provide a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator, to solve
Above-mentioned the deficiencies in the prior art, it not only can guarantee that the filtration purity of liquefied ammonia, and using the method for cross flow filter, effectively reduction
The impurity deposition of ceramic membrane face, can also carry out backwash to the ceramic membrane oil removing chimney filter inside defecator, remove ceramic membrane
Oily chimney filter has reproducibility, and complete equipment Operation and Maintenance is simple and convenient.
For achieving the above object, adopt the following technical scheme that：Dress is filtered in a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing
Put, including the liquefied ammonia inlet ductwork of tank body, the supporting leg that is arranged on below tank body and tank body connection, liquefied ammonia export pipeline and blowdown
Pipeline, described tank body is provided with nitrogen replaceable equipment, chimney filter upper spacer is provided with tank body and on chimney filter upper spacer
Filter tube, is additionally provided with the chimney filter lower clapboard being connected with the filter tube other end on described tank body, described chimney filter upper spacer and filter
Tank body is divided into three closed upper plenums, middle cavity and lower cavity by pipe lower clapboard, described upper plenum, middle cavity and lower sky
Chamber is connected by filter tube, and counter-flushing pipeline is being provided with hollow chamber on described tank body, and liquefied ammonia export pipeline also is located at
Hollow intracavity, described filter tube is ceramic membrane oil removing filter tube, is set on described liquefied ammonia inlet ductwork and liquefied ammonia export pipeline
There is pressure-detecting device.
This utility model advantage compared with prior art is：The inside of tank body is provided with the ceramic membrane that two ends communicate and removes
Oily chimney filter, ceramic membrane oil removing chimney filter is made up of many uniform countless micropores, under liquefied ammonia is acted in system pressure from top to down
Into ceramic membrane oil removing chimney filter inwall, when cross flow filter runs, liquefied ammonia produces two component on ceramic membrane oil removing chimney filter surface,
One normal force for being perpendicular to face, makes liquefied ammonia pass through face, and the fine float, impurity, oils thing in liquid is then cut
Ceramic membrane filter pipe surface is stayed in, the liquefied ammonia for being filtered out flows out from liquefied ammonia outlet, completes filter process；Another kind is parallel
In the tangential force of face, the trapped substance of face is washed away, effectively reduce the filter cake deposition of ceramic membrane face, therefore, cross-flow
The filter membrane surface of filter is not likely to produce concentration polarization phenomenon and scale problems, hence it is evident that improve membrane flux, extends the service life of film, together
When improve filter efficiency；When work to some cycles, the fine float that ceramic membrane filter tube is retained reaches certain thickness
When, pressure differential can increase, and cross flow filter transmitance will decline, and now when pressure differential reaches setting value, not affect normal
Under conditions of work, opening counter-flushing pipeline can effectively be cleaned to ceramic membrane oil removing chimney filter, complete regenerative process, make film extensive
Recovery has performance and is continuing with.
A kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model, can carry out 0.5um levels to liquefied ammonia
Oil removing, secondary filter, simple structure, flexible operation, working service be convenient, safe, while being also applied for all liquefied ammonia
Requirement carries out the industry of secondary filter.
Used as improvement, described Backwash pipeline is connected with liquefied ammonia inlet ductwork, using liquefied ammonia to ceramic membrane oil removing chimney filter
Being rinsed can remove increase equipment from, if be rinsed with other media, the circulation that must accordingly increase scouring media sets
Standby, because liquefied ammonia danger is high, storage using area is all must to be set with electric apparatus less using explosion-proof electric apparatus or as far as possible
It is standby, also eliminate and enter the dangerous of line replacement and trouble to the material in tank body, directly it is rinsed not using the liquefied ammonia in system
Only simplify equipment, and it is safe.
As improvement, described pressure-detecting device be respectively with entering that liquefied ammonia inlet ductwork and liquefied ammonia export pipeline are connected
Outlet differential pressure gauge, inlet outlet pressure differential table directly display the liquefied ammonia of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator into and out of
The pressure differential of mouth, points out operator to carry out backwash and blowdown to defecator in time, if in inlet pipeline and gone out respectively
Pressure apparatus is respectively provided with mouth pipeline, easily occurs error in reading, be also performed to calculate, used cumbersome.
Used as improvement, described tank body is provided with relief valve, and the other end of the relief valve is connected with blowoff line, safety
Valve can automatically ensure that cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator in work and off working state, apparatus system pressure
Power is in all the time within the safe pressure value of setting, so as to ensure the safety of equipment and personnel, due to the high risk of liquefied ammonia, row
The waste gas and waste liquid for going out will discharge into specific pond in processed after can just photograph municipal pipeline, and blowoff line is to lead to
Pond, the outlet of relief valve is connected with blowoff line and eliminates the step of being separately provided discharger.
Used as improvement, one end is threaded connection another between described filter tube and chimney filter upper spacer and chimney filter lower clapboard
End socket, this kind of connected mode can ensure that filter tube ensures installation strength simultaneously in the case of convenient installation.
Used as improvement, described filter tube is equipped with sealing ring with the junction of chimney filter upper spacer and chimney filter lower clapboard, close
The setting of seal can improve sealing property.
As improvement, the external diameter of described ceramic membrane oil removing filter tube be 70mm, internal diameter be 40mm, thickness of pipe wall be 15mm,
Length is 600mm.
Used as improvement, described nitrogen replaceable equipment includes the nitrogen inlet being arranged at middle cavity and is arranged on upper plenum
On floss hole, when just having begun to use in tank body or having carried out maintenance and open, due to having air or ammonia in tank body, to enter
Can just be used after line replacement or be keeped in repair, when line replacement is entered, first be opened nitrogen inlet, be poured into tank body with a level pressure
The nitrogen of power, closes nitrogen inlet after a few minutes, then open outlet and the valve on blow-off line discharges gas,
It is iteratively repeated the purpose for reaching displacement several times.
Description of the drawings
Fig. 1 is a kind of structure chart of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model.
Fig. 2 is that a kind of filtering process of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model is illustrated
Figure.
Fig. 3 is that a kind of counter-flushing process of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model is illustrated
Figure.
Fig. 4 is a kind of chimney filter upper spacer chimney filter of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model
Hole pattern is installed.
Fig. 5 is a kind of chimney filter lower clapboard chimney filter of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model
Hole pattern is installed
Fig. 6 is a kind of ceramic membrane oil removing chimney filter of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model
Outer tube figure.
Fig. 7 is a kind of ceramic membrane oil removing chimney filter of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of this utility model
Cross flow filter schematic diagram.
As shown in the figure：1st, tank body, 2, supporting leg, 3, liquefied ammonia inlet ductwork, 4, liquefied ammonia export pipeline, 5, blowoff line, 6, filter
Pipe upper spacer, 7, filter tube, 8, chimney filter lower clapboard, 9, upper plenum, 10, middle cavity, 11, lower cavity, 12, counter-flushing pipeline, 13,
Import and export differential pressure gauge, 14, relief valve, 15, nitrogen inlet, 16, floss hole.
Specific embodiment
This utility model is described in further detail below in conjunction with the accompanying drawings.
In this application, described filter tube 7 is ceramic membrane oil removing filter tube, so ceramic membrane oil removing filter tube and filtration
Pipe 7 is a part, and ceramic membrane oil removing filter tube is also represented with label 7.
With reference to accompanying drawing, cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator of the present utility model, including cylindric tank
Body 1, supporting leg 2, blowoff line 5, chimney filter lower clapboard 8, relief valve 14, nitrogen inlet 15, floss hole 16, chimney filter upper spacer 6, recoil
Wash pipeline 12, liquefied ammonia inlet ductwork 3 imports and exports differential pressure gauge 13, liquefied ammonia export pipeline 4, ceramic membrane oil removing filter tube 7, and supporting leg 2 is welded
Be connected on the lower end of cylinder tank body 1, for support whole cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator and with basis
Fixed, blowoff line 5 is arranged in the bottom of cylinder tank body 1, cylinder tank body 1 and is provided with chimney filter upper spacer 6 and chimney filter lower clapboard
8, ceramic membrane oil removing filter tube 7 is installed in the middle of it, to greasy dirt, ferrum and other particulate contamination for remaining in liquefied ammonia of going out,
Chimney filter upper spacer 6 and chimney filter lower clapboard 8 will be divided into the cavity of upper, middle and lower three in cylinder tank body 1, described cylinder tank body 1
Upper plenum side is provided with liquefied ammonia inlet ductwork 3, and the side of the angle in 90 ° of liquefied ammonia inlet ductwork 3 is provided with floss hole 16, when
When cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator system pressure exceedes setting value, manual pressure release discharge, as equipment
One of overpressure protection measure, the middle cavity side of the middle part of cylinder tank body 1 is provided with counter-flushing pipeline 12, when import and export differential pressure
When the pressure differential of table reaches setting value, under conditions of normal work is not affected, opening counter-flushing pipeline just can be to ceramic membrane
Oil removing chimney filter is effectively cleaned, and completes regenerative process, film is recovered original performance and is continuing with, in counter-flushing pipeline 12
Bottom is provided with liquefied ammonia export pipeline 4, flows out for the liquefied ammonia after filtration, the nitrogen inlet that the offside of counter-flushing pipeline 12 is arranged
15, the air in cylinder tank body 1 can be replaced, it is to avoid in the inclusion of air liquefied ammonia in cylinder tank body 1, cause to liquid ammonia storage tank
Stress corrosion, the same side-lower of nitrogen inlet 15 is provided with relief valve 14, and relief valve 14 can automatically ensure that cross-current type backwash is made pottery
In work and off working state, apparatus system pressure is in all the time the safe pressure value of setting to porcelain film liquid ammonia oil removing defecator
Within, so as to ensure the safety of equipment and personnel, import and export are provided between liquefied ammonia inlet ductwork 3 and liquefied ammonia export pipeline 4 poor
Pressure table 13, inlet outlet pressure differential table 13 directly display the liquefied ammonia device of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator into and out of
The pressure differential of mouth, when pressure differential reaches setting, points out operator to carry out backwash and blowdown to defecator.
In a particular embodiment, a diameter of Φ 400mm of described cylinder tank body, thickness is 10mm, is highly 1500mm, on
End is provided with flange, and described flange is connected with ring flange bolt, nut seal, and described ring flange is detachable, and material is
SS304 rustless steels.
Described counter-flushing pipeline 12 is connected with liquefied ammonia inlet ductwork 3.
Described pressure-detecting device is poor with the import and export that liquefied ammonia inlet ductwork 3 and liquefied ammonia export pipeline 4 are connected respectively
Pressure table 13.
Described tank body 1 is provided with relief valve 14, and the other end of the relief valve 14 is connected with blowoff line 5.
One end is threaded connection other end set between described filter tube 7 and chimney filter upper spacer 6 and chimney filter lower clapboard 8
Connect, described filter tube two ends, one end is provided with rustless steel convex surface external pipe thread, one end is provided with rustless steel convex surface, outer tube spiral shell
Stricture of vagina end is connected with chimney filter lower clapboard concave surface Internal Pipe Thread, and centre is lined with O-shaped PTFE seal circle, ceramic membrane oil removing filter tube convex surface
End, inserts chimney filter upper spacer concave surface, and centre is lined with O-shaped PTFE seal circle.
Described filter tube 7 is equipped with sealing ring 15 with the junction of chimney filter upper spacer 6 and chimney filter lower clapboard 8.
Described ceramic membrane oil removing filter tube 7, is blue or green with the aluminium oxide of acid and alkali-resistance, quartz sand, emergy, carborundum, violet
Stone is primary raw material, and addition inorganic binder and Zirconium oxide plasticizing agent carry out scientific matching, Jing material mixing, moldings, masking, burn till,
The micropore asymmetrical tubular film that cold working is processed, the external diameter of described ceramic membrane oil removing filter tube 7 is that 70mm, internal diameter are
40mm, thickness of pipe wall be 15mm, length be 600mm, filter 0.1 μm of precision, filter efficiency ＞ 99%, ceramic membrane oil removing filter tube plus
Work technology does not add narration for prior art.
Described nitrogen replaceable equipment includes the nitrogen inlet 15 being arranged at middle cavity 10 and is arranged on upper plenum 9
Floss hole 16.
Operation principle is filtered in oil removing of the present utility model：When liquefied ammonia enters cylinder under system pressure effect from liquefied ammonia import
Tank body upper plenum, is entered in the hollow intracavity of cylinder tank body, the ceramic membrane oil removing chimney filter of vertical installation, in cross-flow by upper plenum
When filtering operation, liquefied ammonia is retained down all particle diameters more than the solid particle and oil droplet of membrane aperture in film Bottomhole pressure, pure
Liquefied ammonia penetrating fluid outwards passes through film along direction normal thereto, can only hesitate in filter tube inner periphery than larger or relatively lighter material
Wander motion, oil, the ferrum heavier with respect to liquefied ammonia etc. and solid particulate matter make unhindered settling, and deposit can be made to decline in cylinder tank body
Bottom, periodically discharged by being arranged on the blowoff line of cylinder tank body bottom, so as to reach the effect of oil-water separation, place to go is miscellaneous
The mesh of matter.
Oil removing filtering process of the present utility model：Liquefied ammonia import opens → and liquefied ammonia outlet opens → nitrogen inlet passs → floss hole pass
→ blowoff line is closed.
This utility model backwash operation principle：After some cycles are filtered, ceramic membrane except chimney filter retained it is fine outstanding
When float reaches certain thickness, pressure differential can increase, and cross flow filter transmitance will decline, now when liquefied ammonia import and export is installed
When importing and exporting the pressure differential that shows of differential pressure gauge and reaching setting value, under conditions of normal work is not affected, unlatching backwash tube
Road just can carry out reverse pressure recoil to ceramic membrane oil removing chimney filter, and now liquefied ammonia is entered by liquefied ammonia import by counter-flushing pipeline
The hollow chamber of cylinder tank body, by ceramic membrane oil removing chimney filter outer wall under pressure-driven endosmosis, in this role, chimney filter inwall is attached
The impurity comes off rapidly, significantly removes the greasy dirt and impurity cake layer for being deposited on chimney filter film surface, and washing away in flows of liquid ammonia
Discharged by being arranged on the blowoff line of cylinder tank body bottom under effect, recover membrane flux, maintain stablizing for membrane filtration characteristic, it is real
The long-term operation of existing system.
This utility model counter-flushing process：Liquefied ammonia import and export pressure reduction reaches setting value → opening counter-flushing pipeline → closing
Liquefied ammonia outlet valve → opening blowoff line (now nitrogen inlet, floss hole are in closed mode) → backwash carry out 3min～
After 10min → observation recoil cleaning performance → stopping backwash → recovery filtration working condition.
As described above, it is this utility model simple structure, easy to use, safe, with very strong specific aim and practicality
Property
Certainly, examples detailed above is a part of example of this utility model, rather than the example of whole, and example is only to illustrate this reality
With new technology design and feature, the component of this utility model example for being generally described in the drawings and illustrating can be with various
Different configurations is arranging and design.Therefore, to the detailed description of example of the present utility model that provides in the accompanying drawings not purport
In the claimed scope of the present utility model of restriction, but selected example of the present utility model is merely representative of, based on this practicality
Example in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of this utility model protection.
Claims (8)
1. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator, including tank body (1), it is arranged on below tank body (1)
Supporting leg (2) and the liquefied ammonia inlet ductwork (3) of tank body (1) connection, liquefied ammonia export pipeline (4) and blowoff line (5), described tank
Body (1) is provided with nitrogen replaceable equipment, tank body (1) and is provided with chimney filter upper spacer (6) and the mistake on chimney filter upper spacer (6)
Chimney filter (7), it is characterised in that：The chimney filter lower clapboard (8) being connected with filter tube (7) other end is additionally provided with described tank body (1),
Tank body (1) is divided into three closed upper plenum (9), middle cavitys by described chimney filter upper spacer (6) and chimney filter lower clapboard (8)
(10) and lower cavity (11), described upper plenum (9), middle cavity (10) are connected with lower cavity (11) by filter tube (7), described
Tank body (1) on be provided with counter-flushing pipeline (12) positioned at hollow chamber (10) place, liquefied ammonia export pipeline (4) also is located at middle cavity
(10) in, described filter tube (7) is ceramic membrane oil removing filter tube (7), described liquefied ammonia inlet ductwork (3) and liquefied ammonia outlet
Road (4) is provided with pressure-detecting device.
2. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1, it is characterised in that：Institute
The counter-flushing pipeline (12) stated is connected with liquefied ammonia inlet ductwork (3).
3. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1, it is characterised in that：Institute
The pressure-detecting device stated is the import and export differential pressure gauge being connected with liquefied ammonia inlet ductwork (3) and liquefied ammonia export pipeline (4) respectively
(13)。
4. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1, it is characterised in that：Institute
The tank body (1) stated is provided with relief valve (14), and the other end of the relief valve (14) is connected with blowoff line (5).
5. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1, it is characterised in that：Institute
One end is threaded connection other end socket between the filter tube (7) stated and chimney filter upper spacer (6) and chimney filter lower clapboard (8).
6. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1, it is characterised in that：Institute
The filter tube (7) stated is equipped with sealing ring with the junction of chimney filter upper spacer (6) and chimney filter lower clapboard (8).
7. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1-6 any one, its
It is characterised by：The external diameter of described ceramic membrane oil removing filter tube (7) is 70mm, internal diameter is 40mm, thickness of pipe wall is 15mm, length is
600mm。
8. a kind of cross-current type backwash ceramic membrane liquefied ammonia oil removing defecator according to claim 1-6 any one, its
It is characterised by：Described nitrogen replaceable equipment includes being arranged on the nitrogen inlet (15) at middle cavity (10) place and is arranged on upper plenum
(9) floss hole (16) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157218.9U CN206138837U (en) | 2016-10-31 | 2016-10-31 | Cross -flow back flush ceramic membrane liquid ammonia deoiling filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157218.9U CN206138837U (en) | 2016-10-31 | 2016-10-31 | Cross -flow back flush ceramic membrane liquid ammonia deoiling filter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206138837U true CN206138837U (en) | 2017-05-03 |
Family
ID=58623620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621157218.9U Expired - Fee Related CN206138837U (en) | 2016-10-31 | 2016-10-31 | Cross -flow back flush ceramic membrane liquid ammonia deoiling filter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206138837U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422468A (en) * | 2016-10-31 | 2017-02-22 | 刘国敏 | Cross-flow backflushing ceramic membrane liquid ammonia deoiling filtering device |
| CN112125481A (en) * | 2020-09-29 | 2020-12-25 | 中建水务环保有限公司 | Multistage ceramic membrane rural sewage treatment plant |
| WO2022242049A1 (en) * | 2021-05-21 | 2022-11-24 | 上海城市水资源开发利用国家工程中心有限公司 | Novel light silicon carbide ceramic backwashing precision filtering device and method therefor |
-
2016
- 2016-10-31 CN CN201621157218.9U patent/CN206138837U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422468A (en) * | 2016-10-31 | 2017-02-22 | 刘国敏 | Cross-flow backflushing ceramic membrane liquid ammonia deoiling filtering device |
| CN112125481A (en) * | 2020-09-29 | 2020-12-25 | 中建水务环保有限公司 | Multistage ceramic membrane rural sewage treatment plant |
| CN112125481B (en) * | 2020-09-29 | 2021-04-27 | 中建水务环保有限公司 | Multistage ceramic membrane rural sewage treatment plant |
| WO2022242049A1 (en) * | 2021-05-21 | 2022-11-24 | 上海城市水资源开发利用国家工程中心有限公司 | Novel light silicon carbide ceramic backwashing precision filtering device and method therefor |
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