CN103157320A - Blockage detection method and blockage detection system for Y-type filter - Google Patents
Blockage detection method and blockage detection system for Y-type filter Download PDFInfo
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- CN103157320A CN103157320A CN2011104139560A CN201110413956A CN103157320A CN 103157320 A CN103157320 A CN 103157320A CN 2011104139560 A CN2011104139560 A CN 2011104139560A CN 201110413956 A CN201110413956 A CN 201110413956A CN 103157320 A CN103157320 A CN 103157320A
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Abstract
The invention relates to a method for detecting blockage of a Y -type filter and a system for detecting the blockage of the Y -type filter. The method for detecting the blockage of the Y -type filter comprises the following steps of a first detection step for detecting an inlet pressure of the Y -type filter; a second detection step for detecting an outlet pressure of the Y -type filter; and a judgment step for comparing the inlet pressure detected by the first detection step and the outlet pressure detected by the second detection step, and determining the Y -type filter is blocked if the above two pressures have a pressure difference or the pressure difference between the two pressures reach a specified threshold. According to the blockage detection method and the blockage detection system for the Y-type filter, whether various Y-type filters are blocked or not can be monitored in real time, labor cost can be reduced greatly, and at the same time, other influences to the system cannot be caused.
Description
Technical field
The present invention relates to y-type filter, relate in particular to the method that detects the y-type filter obstruction and detect the system that y-type filter stops up.
Background technology
Y-type filter is the indispensable a kind of filter of the pipe-line system of pumped (conveying) medium; y-type filter is arranged on the entrance point of pressure-reducing valve, relief valve, Valve for keeping constant water level or miscellaneous equipment usually; be used for removing the impurity in medium, with the normal use of protection valve and equipment.Such as being widely used in the various fields such as air-conditioning draught fan dish, automobile, refrigerator.The characteristics such as y-type filter has simple in structure, and resistance is little, and blowdown is convenient.The y-type filter Applicable media can be water, oil, gas.
The effect of y-type filter is the impurity in filter pipe, uses in a large number in air conditioner fan coil water inlet process field.Fig. 1 means the schematic diagram of the structure of y-type filter commonly used.
As shown in Figure 1, y-type filter 10 comprises that entrance 11, outlet 12 and internal screen 13(are also referred to as " filter core ").When the entrance 11 from y-type filter 10 such as liquid or gas enters, flow out from exporting 12, wherein pass through the filtration of internal screen 13.Self-filtering net 13 can filter liquide or gas in unwanted impurity, get rid of from exporting 13 through the liquid after filtering or gas like this.
The effect of y-type filter 10 is the impurity in filter pipe, because internal screen 13 after one section practice of y-type filter use can be stopped up, causes line clogging.For example at the such y-type filter 10 of a large amount of uses of coil pipe of air-conditioner blower water inlet process field, when line clogging, can make fan coil refrigeration or heating effect extreme difference or there is no effect.On the other hand, because y-type filter 10 is mounted on pipeline, and internal screen 13 also is arranged on filter interior, therefore is difficult to judge whether screen pack stops up.In prior art, whether stop up in order to judge the y-type filter that uses in air-conditioning system, dismantle, check, clean in all y-type filters to whole coil pipe of air-conditioner blower system after operation a period of time.
Such way is difficult to not only judge which y-type filter whether stop up, and has a large amount of manpower of waste, operation impacts to system problem, and simultaneously, cleaning performance also can't show.
Summary of the invention
The present invention aims to provide a kind of y-type filter choke detecting method and y-type filter clogging detecting system of blocked state that can the Real Time Monitoring y-type filter in view of the above problems.
The choke detecting method of y-type filter of the present invention is characterized in that, comprises the steps:
Detect the first detecting step of the inlet pressure of y-type filter;
Detect the second detecting step of the outlet pressure of y-type filter; And
The outlet pressure that the inlet pressure that more above-mentioned the first detecting step detects and above-mentioned the second detecting step detect if both exist pressure differential or both pressure differentials to reach defined threshold, is judged as the determining step that y-type filter stops up.
Preferably, in above-mentioned the first detecting step, detect the gas pressure of import department or fluid pressure as inlet pressure, in above-mentioned the second detecting step, detect the gas pressure in exit or fluid pressure as outlet pressure.
According to the choke detecting method of above-mentioned y-type filter of the present invention, by the difference between y-type filter inlet pressure and outlet pressure is monitored, can monitor in real time the situation whether y-type filter exists obstruction.And, no matter be for the y-type filter of filter liquid or the y-type filter of filter liquid can both adopt the present invention.
The choke detecting method of y-type filter of the present invention for detection of a plurality of y-type filters, is characterized in that, comprises the steps:
Each y-type filter is detected respectively the first detecting step of inlet pressure;
Each y-type filter is detected respectively the second detecting step of mouth pressure; And
To each y-type filter outlet pressure of detecting of the inlet pressure that detects of more above-mentioned the first detecting step and above-mentioned the second detecting step respectively, if both exist pressure differential or both pressure differentials to reach defined threshold, be judged as the determining step that y-type filter stops up.
Preferably, the choke detecting method of y-type filter of the present invention also possesses: be the alarm step of which y-type filter in the situation that be judged as the y-type filter of y-type filter obstruction prompting existence obstruction in above-mentioned determining step.
The clogging detecting system of y-type filter of the present invention is characterized in that, comprising:
N y-type filter, each y-type filter have respectively import, outlet and self-filtering net;
N pressure detector is used for detecting respectively each inlet pressure and outlet pressure of described the 1st～a N y-type filter, and inlet pressure and outlet pressure exported as pressure signal, and wherein N is natural number;
CCU, possesses judging unit, described judging unit is used for acceptance from the pressure signal of a described N pressure detector, the inlet pressure and the outlet pressure that comprise in more described pressure signal respectively for each y-type filter, in the situation that inlet pressure and outlet pressure exist the pressure differential of pressure differential or inlet pressure and outlet pressure to reach defined threshold, be judged as this y-type filter and have obstruction.
Preferably, described CCU also possesses Tip element, and described Tip element is in the situation which y-type filter the y-type filter that described judgment unit judges is y-type filter exists obstruction prompting existence to stop up is.
Preferably, described pressure detector is gas pressure detector or fluid pressure detector.
Preferably, a described N pressure detector by wire be connected CCU and connect.
Preferably, each pressure detector of a described N pressure detector has respectively 2 probes, and described 2 probes are separately positioned on import and the outlet of y-type filter.
Like this, clogging detecting system according to the y-type filter of the choke detecting method of the y-type filter of the invention described above and the invention described above, by the difference between y-type filter inlet pressure and outlet pressure is monitored, can monitor in real time the situation whether y-type filter exists obstruction, and in the situation that there are a plurality of y-type filters, stopping state that can each y-type filter of Real Time Monitoring, and in the situation that occur stopping up, can point out which y-type filter to occur stopping up.Like this, in the situation that a plurality of y-type filters of use just do not need each y-type filter is dismantled to come to check whether internal screen is stopped up, but just can learn that by pressure differential there is obstruction in which or which y-type filter, thus, greatly saved manpower.
Description of drawings
Fig. 1 means the schematic diagram of the structure of y-type filter commonly used.
Fig. 2 means the block diagram of an embodiment of the present invention y-type filter clogging detecting system.
The specific embodiment
The below introduces is a plurality of some in may embodiment of the present invention, aims to provide basic understanding of the present invention.Be not intended to confirm key of the present invention or conclusive key element or limit claimed scope.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
First-selection describes for basic principle of the present invention.
When liquid or gas flow are crossed y-type filter 10, at first flow into from import 11, then filter by internal screen 13 and stay impurity, flow out from exporting 12 through liquid or the gas that filters.If internal screen 13 is not stopped up fully, the pressure that measures in import 11 and just substantially equate there is no pressure differential at outlet 12 pressure that measure, if or internal screen 13 there is no obstruction, although the pressure that measures in import 11 and have to a certain degree pressure differentials at the pressure that outlet 12 measures, this pressure differential surpasses a certain defined threshold.Thus, by measuring the pressure differential of import 11 and outlet 12, just can judge whether to exist according to pressure differential the situation of internal screen 13 obstructions.
Then, the choke detecting method for the y-type filter of an embodiment of the present invention describes.
The choke detecting method of y-type filter of the present invention can detect the stopping state of y-type filter shown in Figure 1 10.The concrete steps of this choke detecting method are as follows:
First-selection utilizes pressure detector to detect the inlet pressure of the import 11 of y-type filter 10.Then, utilize pressure detector to detect the outlet pressure of the outlet 12 of y-type filter 10.Then, the inlet pressure that relatively detects and the outlet pressure that detects, if there are pressure differential in inlet pressure and outlet pressure, perhaps inlet pressure and outlet pressure are poor greater than certain predefined threshold value, and the self-filtering net 13 that is judged as y-type filter 10 exists and stops up.
At above-mentioned detection inlet pressure, detect the step of mouth pressure, can be the inlet and outlet pressure that detects by the liquid of y-type filter 10, can be also the inlet and outlet pressure that detects by the gas of y-type filter 10.That is to say, when being used for liquid is filtered from y-type filter 10, detect the pressure differential of the liquid of importing and exporting, when being used for gas is filtered from y-type filter 10, detect the pressure differential of the gas of importing and exporting,
Here, in deterministic process, namely can be set as long as the self-filtering net 13 that inlet pressure and outlet pressure exist pressure differential just to be judged as y-type filter 10 exists to be stopped up, also can set the pressure differential of only having between inlet pressure and outlet pressure and have obstruction greater than the self-filtering net 13 that certain predefined threshold value just is judged as y-type filter 10.Here, the character of field, the gas that passes through or liquid that the setting of this threshold value can be used according to y-type filter 10 is carried out, and therefore, in the present invention for this threshold value, does not limit concrete number range.
Above, be illustrated for the choke detecting method for a y-type filter, below, describing for the choke detecting method for a plurality of y-type filters, the concrete steps of this choke detecting method are as follows:
At first, each y-type filter 10 is detected respectively the first detecting step of the inlet pressure of import 11.Then, each y-type filter 10 is detected respectively the outlet pressure of outlet 12.Then, to each y-type filter 10 inlet pressure that relatively detects respectively and the outlet pressure that detects, if inlet pressure and outlet pressure exist the pressure differential of pressure differential or inlet pressure and outlet pressure to reach defined threshold, the internal screen 13 that is judged as y-type filter 10 exists to be stopped up.
Here for the detection of each y-type filter 10, with the top content that has illustrated.On this basis, in the situation that comprise also in the detection method of present embodiment that when the internal screen 13 that is judged as y-type filter 10 exists the obstruction prompting to have the y-type filter that stops up be the step of which y-type filter.
Like this, not only can detect in the situation that y-type filter exist to stop up, and in the situation that there are a plurality of y-type filters, can detect which y-type filter and exist and stop up and point out out which y-type filter to have situation about stopping up.
As mentioned above, utilize the detection method of y-type filter of the present invention, can not remove the self-filtering net and just can whether have obstruction by direct-detection, and in the situation that there are a plurality of y-type filters, can learn easily it is which or which y-type filter exists stopping state.Therefore, have advantages of the manpower of saving, Real Time Monitoring, easy to use.
Under regard to the y-type filter of another embodiment of the present invention clogging detecting system describe.
Fig. 2 means the block diagram of the y-type filter clogging detecting system of an embodiment of the present invention.
As shown in Figure 2, y-type filter clogging detecting system of the present invention comprises: the N of the 1st～a N y-type filter 100
1～100
n, the 1st～the N N pressure detector 500
1～500
n, CCU 800.
Wherein, each y-type filter 100
1～100
nComprise respectively import 200
1～200
n, the outlet 300
1～300
n, and self-filtering net 400
1～400
nHere N is natural number.
The N of the 1st～a N pressure detector 500
1～500
nCorrespond respectively to N the y-type filter 100 of the 1st～the N
1～100
n, pressure detector 500
1～500
nBe used for detecting respectively a described N y-type filter 100
1～100
nEach import 200
1～200
nInlet pressure and the outlet 300
1～300
nOutlet pressure, and inlet pressure and outlet pressure are outputed to described CCU 800 as pressure signal.
Pressure detector 500
1～500
nEach comprise respectively 2 probes 700
1～700
nFor each y-type filter 100
1～100
n, 2 probes 700
1～700
nBe separately positioned on import 200
1～200
nWith outlet 300
1～300
nLike this by 2 probes 700
1～700
n, can measure respectively import 200
1～200
nWith outlet 300
1～300
nPressure.
When y-type filter 100
1～100
nWhen being the filter for filter liquide, by 2 probes 700
1～700
n, can measure respectively import 200
1～200
nThe import fluid pressure and the outlet 300
1～300
nThe outlet fluid pressure.。When y-type filter 100
1～100
nWhen being the filter for filtering gas, by 2 probes 700
1～700
n, can measure respectively import 200
1～200
nInlet gas pressure and the outlet 300
1～300
nExit gas pressure.
CCU 800 is the central processing units that are made of software or hardware, and it possesses judging unit 801 and Tip element 802.
Wherein, judging unit 801 is respectively by wire 900
1～900
nAcceptance is from a described N pressure detector 500
1～500
nPressure signal, for each y-type filter 100
1～100
nThe inlet pressure and the outlet pressure that comprise in more described pressure signal respectively, in the situation that inlet pressure and outlet pressure exist the pressure differential of pressure differential or inlet pressure and outlet pressure to reach defined threshold, be judged as this y-type filter and have situation about stopping up.
Here, in judging unit 801, namely can be set as long as inlet pressure and outlet pressure exist pressure differential just to be judged as y-type filter 100
1～100
nSelf-filtering net self-filtering net 400
1～400
nExist and stop up, also can set the pressure differential of only having between inlet pressure and outlet pressure and just be judged as the self-filtering net self-filtering net 400 of y-type filter 10 greater than certain predefined threshold value
1～400
nExist and stop up.Here, the character of field, the gas that passes through or liquid that the setting of this threshold value can be used according to y-type filter 10 is carried out, and therefore, in the present invention for this threshold value, does not limit concrete number range.
Simultaneously, Tip element 802 is judged as y-type filter 100 at judging unit 801
1～100
nWhich y-type filter has the y-type filter that in situation about stopping up, the prompting existence is stopped up is.
In actual use, can be with the 1st～a N y-type filter 100
1～100
nNumbering respectively in the situation that the judging unit 801 of central processing unit 800 judges and exist to stop up, utilizes Tip element 802 to show by word or the mode such as audio alert points out which or which y-type filter to have stopping state.Like this, prompting according to word demonstration or audio alert etc., just can learn directly that there is obstruction in which or which y-type filter, when repairing cleaning, as long as just will have the y-type filter dismounting of stopping up, clear up, and need not other not existed that the y-type filter of obstruction is dismantled, cleaning etc.Thus, greatly saved the manpower work, simplified the cleaning of y-type filter.
On the other hand, after the qualified y-type filter of cleaning re-assemblied, Tip element just can not send prompting.Like this, just be conducive to the staff and promptly learn wash result, can carry out Real Time Monitoring to the stopping state of y-type filter.
Above example has mainly illustrated clogging detecting system and the detection method of y-type filter of the present invention.Although only the some of them embodiments of the present invention are described, those of ordinary skills should understand, and the present invention can be within not departing from its purport and scope implements with many other forms.Therefore, the example of showing and embodiment are regarded as illustrative and not restrictive, in the situation that do not break away from spirit of the present invention as defined in appended each claim and scope, the present invention may be contained various modifications and replacement.
Claims (9)
1. the choke detecting method of a y-type filter, is characterized in that, comprises the steps:
The first detecting step of the inlet pressure of the import department of detection y-type filter;
The second detecting step of the outlet pressure in the exit of detection y-type filter; And
The outlet pressure that the inlet pressure that more above-mentioned the first detecting step detects and above-mentioned the second detecting step detect if both exist pressure differential or both pressure differentials to reach defined threshold, is judged as the determining step that y-type filter stops up.
2. the choke detecting method of y-type filter as claimed in claim 1, is characterized in that,
In above-mentioned the first detecting step, detect the gas pressure of import department or fluid pressure as inlet pressure,
In above-mentioned the second detecting step, detect the gas pressure in exit or fluid pressure as outlet pressure.
3. the choke detecting method of a y-type filter, for detection of a plurality of y-type filters, is characterized in that, comprises the steps:
Each y-type filter is detected respectively the first detecting step of the inlet pressure of import department;
Each y-type filter is detected respectively the second detecting step of the outlet pressure in exit; And
To each y-type filter outlet pressure of detecting of the inlet pressure that detects of more above-mentioned the first detecting step and above-mentioned the second detecting step respectively, if both exist pressure differential or both pressure differentials to reach defined threshold, be judged as the determining step that y-type filter stops up.
4. the choke detecting method of y-type filter as claimed in claim 3, is characterized in that, also possesses:
The alarm step of which y-type filter in the situation that be judged as the y-type filter of y-type filter obstruction prompting existence obstruction in above-mentioned determining step.
5. the clogging detecting system of a y-type filter, is characterized in that, comprising:
N y-type filter, each y-type filter have respectively import, outlet and self-filtering net;
N pressure detector, be used for detecting respectively a described N y-type filter each the inlet pressure of import department and the outlet pressure in exit, and inlet pressure and outlet pressure are exported as pressure signal, wherein N is natural number;
CCU, possesses judging unit, described judging unit is used for acceptance from the pressure signal of a described N pressure detector, the inlet pressure and the outlet pressure that comprise in more described pressure signal respectively for each y-type filter, in the situation that inlet pressure and outlet pressure exist the pressure differential of pressure differential or inlet pressure and outlet pressure to reach defined threshold, be judged as this y-type filter and have obstruction.
6. the clogging detecting system of y-type filter as claimed in claim 5, is characterized in that,
Described CCU also possesses Tip element,
Described Tip element is in the situation which y-type filter the y-type filter that described judgment unit judges is y-type filter exists obstruction prompting existence to stop up is.
7. the clogging detecting system of y-type filter as claimed in claim 6, is characterized in that,
Described pressure detector is gas pressure detector or fluid pressure detector.
8. the clogging detecting system of y-type filter as claimed in claim 6, is characterized in that,
A described N pressure detector by wire be connected CCU and connect.
9. the clogging detecting system of y-type filter as claimed in claim 8, is characterized in that,
Each pressure detector of a described N pressure detector has respectively 2 probes,
Described 2 probes are separately positioned on import department and the exit of y-type filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104139560A CN103157320A (en) | 2011-12-13 | 2011-12-13 | Blockage detection method and blockage detection system for Y-type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104139560A CN103157320A (en) | 2011-12-13 | 2011-12-13 | Blockage detection method and blockage detection system for Y-type filter |
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| Publication Number | Publication Date |
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| CN103157320A true CN103157320A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104139560A Pending CN103157320A (en) | 2011-12-13 | 2011-12-13 | Blockage detection method and blockage detection system for Y-type filter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642584A (en) * | 2016-04-07 | 2016-06-08 | 博艳萍 | Thoroughly clearing machine for air blowing port of air drying machine in textile mill |
| CN106999808A (en) * | 2014-10-30 | 2017-08-01 | 新信心股份有限公司 | Clogging estimation method and filter monitoring system |
| CN107648940A (en) * | 2017-10-27 | 2018-02-02 | 无锡市永兴金属软管有限公司 | A kind of method filtered using pneumatic filter |
| CN111101357A (en) * | 2018-10-09 | 2020-05-05 | 青岛海尔滚筒洗衣机有限公司 | Air path blockage detection method of clothes dryer and clothes dryer |
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| JPH06170126A (en) * | 1992-12-01 | 1994-06-21 | Mitsubishi Electric Corp | Constant pressure filter |
| JP2001038114A (en) * | 1999-08-02 | 2001-02-13 | Saginomiya Seisakusho Inc | Hydraulic filter monitoring system and hydraulic filter monitoring method |
| CN2737450Y (en) * | 2004-08-17 | 2005-11-02 | 王惠生 | Mechanical filter blockage state monitor |
| CN201052440Y (en) * | 2007-04-29 | 2008-04-30 | 曹青林 | Y type filter |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01225847A (en) * | 1988-03-04 | 1989-09-08 | Matsushita Refrig Co Ltd | Air conditioner |
| JPH06170126A (en) * | 1992-12-01 | 1994-06-21 | Mitsubishi Electric Corp | Constant pressure filter |
| JP2001038114A (en) * | 1999-08-02 | 2001-02-13 | Saginomiya Seisakusho Inc | Hydraulic filter monitoring system and hydraulic filter monitoring method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106999808A (en) * | 2014-10-30 | 2017-08-01 | 新信心股份有限公司 | Clogging estimation method and filter monitoring system |
| CN106999808B (en) * | 2014-10-30 | 2019-12-20 | 新信心股份有限公司 | Clogging estimation method and filter monitoring system |
| CN105642584A (en) * | 2016-04-07 | 2016-06-08 | 博艳萍 | Thoroughly clearing machine for air blowing port of air drying machine in textile mill |
| CN107648940A (en) * | 2017-10-27 | 2018-02-02 | 无锡市永兴金属软管有限公司 | A kind of method filtered using pneumatic filter |
| CN111101357A (en) * | 2018-10-09 | 2020-05-05 | 青岛海尔滚筒洗衣机有限公司 | Air path blockage detection method of clothes dryer and clothes dryer |
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Application publication date: 20130619 |