CN110270151A - Method for flushing filter element and equipment adopting same - Google Patents
Method for flushing filter element and equipment adopting same Download PDFInfo
- Publication number
- CN110270151A CN110270151A CN201910577349.4A CN201910577349A CN110270151A CN 110270151 A CN110270151 A CN 110270151A CN 201910577349 A CN201910577349 A CN 201910577349A CN 110270151 A CN110270151 A CN 110270151A
- Authority
- CN
- China
- Prior art keywords
- filter core
- negative
- positive
- purging method
- duration
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000011010 flushing procedure Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 12
- 238000010926 purge Methods 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 13
- 239000004202 carbamide Substances 0.000 claims description 13
- 239000012535 impurity Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a filter element flushing method and equipment adopting the same. The method for flushing the filter element comprises the following steps: detecting the filtering parameters of the filter element; calculating the length of forward and backward washing time according to the filtering parameters; and when the flushing time is up, flushing the filter element according to the calculated forward and backward flushing time lengths. The invention can ensure that the filter element can be fully washed and simultaneously saves water consumption.
Description
Technical field
The present invention relates to the purging methods of filter core, and using the equipment of the purging method.
Background technique
As the requirement of domestic emission regulation is increasingly stringenter, current some engine manufacturers use selective catalytic reduction
(SCR) tail gas disposal technique.The main operational principle of SCR is that urea resolves into NH at high temperature3And CO2, the NH of generation3
As reducing agent, by the NO in exhaust gasxIt is reduced into N2.Current this tail gas disposal technique is all much using urea for vehicle one
Machine is realized, solid urea particle is produced by solid particle manufacturer, when vehicle needs to fill urea liquid by urea for vehicle
Intelligent machine efficiently realizes the integration mixture of urea and aqueous solution at filling scene, passes through become can to fill again after filter element filtering
Urea liquid, to reduce the energy consumption and urea residual liquid discharge of automobile.
With the increase for using the time, often has many impurity etc. and block filter core, therefore, it is necessary to rush to filter core
It washes.But the filter core purging method of existing urea for vehicle intelligent machine is all setting opposite interval time to be timed cleaning,
Filter core is changed newly with after a period of use in this way, and washing time is just as, and causes washing water quantity to waste, and in filter core impurity
When more, it is unable to fully rinse.
Summary of the invention
In order to solve the technical issues of amount of flush water cannot be adjusted according to circumstances in the prior art, the invention proposes filter cores
Purging method, the equipment using the purging method.
The purging method of filter core proposed by the present invention, comprising steps of
Detect the filtration parameter of filter core；
Duration is washed according to filtration parameter calculating is positive and negative；
When reaching washing time, positive and negative wash duration according to calculated filter core is rinsed.
Specifically, the filtration parameter includes hydraulic pressure before filter element filtering, the water amount of filter core and the water after filter element filtering
Flow at least one of is worked as.
Specifically, the hydraulic pressure is bigger, described positive and negative to wash duration longer.
Specifically, the growth rate of the water amount is slower, described positive and negative to wash duration longer.
Specifically, the water flow is smaller, described positive and negative to wash duration longer.
Preferably, by preset filtration parameter and the positive and negative relationship correspondence database for washing duration come according to the filtering
Parameter calculating is positive and negative to wash duration.
Equipment proposed by the present invention, including filter core rinse the filter using the purging method in above-mentioned technical proposal
Core.
Specifically, the equipment includes urea for vehicle all-in-one machine.
The present invention is realized the automatic adjustment of filter core washing time, is not had in filter core by the relevant parameter of detection filter core
It is rinsed when too many impurity with a small amount of water, is rinsed in the more situation of filter core impurity with larger suitable amount of water, guaranteeing having for filter core
When effect is rinsed, while also saving water.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is flow chart of the method for the present invention.
Specific embodiment
The principle and embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Fig. 1 shows the process portion of a preferred embodiment of the invention.The present invention passes through the filtration parameter of detection filter core,
Then duration is washed to calculate the positive and negative of filter core flushing according to the case where filtration parameter, when reaching washing time, according to being calculated
Positive and negative wash duration filter core is just rinsed and be backwashed.
Specifically, the present invention is according at least one filtration parameter such as the water amount of filter core, hydraulic pressure and water flow, Lai Shixian
Washing time is automatically adjusted, i.e., when automatic collection water amount, hydraulic pressure and water flow data carry out analysis meter calculating backwash, just wash
Between, automatic realize just is being washed and backwash function.Wherein, water amount refers to total water amount of filter core, this water amount with when
Between it is incremental can be increasing, such as when just having begun to use 1 hour, water amount is 2m3, after having used one day, it may be possible to
48m3, with the increase for using the time, if if filter core is blocked by impurity, the growth rate of water amount can be smaller and smaller, institute
Will be seen that the jam situation of filter core by detecting water amount, therefore, the growth rate of water amount is slower, then the present invention is certainly
It is dynamic to lengthen the positive and negative washing time washed.Hydraulic pressure then refers to the hydraulic pressure before filter element filtering, when filter core is plugged, filter core
Hydraulic pressure before filtering will increase, therefore can also be expected and the stopping state of filter core by the hydraulic pressure before detection filtering, therefore, hydraulic pressure
Bigger, then the positive and negative duration of washing being correspondingly arranged also will be longer.Water flow refers to the water flow after filter element filtering, works as filter
When core blocks, which can be substantially reduced, to provide the foundation for judging whether filter core blocks, therefore, water flow is smaller,
Be correspondingly arranged positive and negative to wash duration longer.
In one embodiment, the present invention passes through preset filtration parameter and the positive and negative relationship correspondence database for washing duration
To wash duration according to filtration parameter calculating is positive and negative.
After the present invention is by automatic running, according to parameters such as the water amount of the filter core of filter tank, hydraulic pressure and water flows, automatic point
The time is just washed in backwash needed for analysis calculates worry tank.Judge filter core with the presence or absence of impurity and substantially miscellaneous according to these data
Quality, to be rinsed when filter core does not have too many impurity with a small amount of water, with larger suitable amount of water in the more situation of filter core impurity
It rinses, to guarantee effective flushing of filter core, while also having saved water early period in filter core.
Method of the invention can be applied in the various equipment with filter core, such as urea for vehicle all-in-one machine etc., this makes
Urea for vehicle all-in-one machine is obtained when new clothes, it is possible to reduce water consumption, and when stopping state is more serious, it is available
It adequately rinses, to keep the unobstructed of strainer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of purging method of filter core, which is characterized in that comprising steps of
Detect the filtration parameter of filter core；
Duration is washed according to filtration parameter calculating is positive and negative；
When reaching washing time, positive and negative wash duration according to calculated filter core is rinsed.
2. the purging method of filter core as described in claim 1, which is characterized in that before the filtration parameter includes filter element filtering
Hydraulic pressure, the water amount of filter core and the water flow after filter element filtering at least one of are worked as.
3. the purging method of filter core as claimed in claim 2, which is characterized in that the hydraulic pressure is bigger, described positive and negative to wash duration
It is longer.
4. the purging method of filter core as claimed in claim 2, which is characterized in that the growth rate of the water amount is slower, institute
State that positive and negative to wash duration longer.
5. the purging method of filter core as claimed in claim 2, which is characterized in that the water flow is smaller, described positive and negative when washing
It is longer.
6. the purging method of filter core as described in claim 1, which is characterized in that washed by preset filtration parameter with positive and negative
The relationship correspondence database of duration positive and negative washes duration to calculate according to the filtration parameter.
7. a kind of equipment, including filter core, which is characterized in that using the purging method as described in claim 1 to 6 any one come
Rinse the filter core.
8. equipment as claimed in claim 7, which is characterized in that the equipment includes urea for vehicle all-in-one machine.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910577349.4A CN110270151A (en) | 2019-06-28 | 2019-06-28 | Method for flushing filter element and equipment adopting same |
| PCT/CN2019/127616 WO2020258783A1 (en) | 2019-06-28 | 2019-12-23 | Rinsing method for filter element and apparatus using rinsing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910577349.4A CN110270151A (en) | 2019-06-28 | 2019-06-28 | Method for flushing filter element and equipment adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110270151A true CN110270151A (en) | 2019-09-24 |
Family
ID=67962622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910577349.4A Pending CN110270151A (en) | 2019-06-28 | 2019-06-28 | Method for flushing filter element and equipment adopting same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110270151A (en) |
| WO (1) | WO2020258783A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020258783A1 (en) * | 2019-06-28 | 2020-12-30 | 珠海格力智能装备有限公司 | Rinsing method for filter element and apparatus using rinsing method |
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|---|---|---|---|---|
| US5484536A (en) * | 1991-09-17 | 1996-01-16 | Kabushiki Kaisha Toshiba | Filter backwash control method and apparatus |
| CN2892243Y (en) * | 2006-04-21 | 2007-04-25 | 浙江德安新技术发展有限公司 | Filter with positive and negative dual washing function |
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-
2019
- 2019-06-28 CN CN201910577349.4A patent/CN110270151A/en active Pending
- 2019-12-23 WO PCT/CN2019/127616 patent/WO2020258783A1/en active Application Filing
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| CN101664613A (en) * | 2009-09-09 | 2010-03-10 | 无锡市创恒机械有限公司 | Emulsion high-pressure automatic back-flushing filtering device |
| CN101857316A (en) * | 2010-05-17 | 2010-10-13 | 北京勤诚创业科技有限公司 | Constant temperature purifier of boiler condensed water |
| CN202214238U (en) * | 2011-08-17 | 2012-05-09 | 联宇环保科技（上海）有限公司 | Internal pressure type double ultra-filtration water purifying device capable of realizing positive and reverse flushing |
| CN102929165A (en) * | 2012-10-29 | 2013-02-13 | 深圳市汇清科技有限公司 | Control system for direct drinking water equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020258783A1 (en) * | 2019-06-28 | 2020-12-30 | 珠海格力智能装备有限公司 | Rinsing method for filter element and apparatus using rinsing method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020258783A1 (en) | 2020-12-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190924 |