CN106994266A - A kind of central air-conditioning filtration system and its filter method - Google Patents
A kind of central air-conditioning filtration system and its filter method Download PDFInfo
- Publication number
- CN106994266A CN106994266A CN201610053644.6A CN201610053644A CN106994266A CN 106994266 A CN106994266 A CN 106994266A CN 201610053644 A CN201610053644 A CN 201610053644A CN 106994266 A CN106994266 A CN 106994266A
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- driven valve
- chip microcomputer
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- 238000001914 filtration Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 89
- 230000008859 change Effects 0.000 claims description 17
- 239000012535 impurity Substances 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000295146 Gallionellaceae Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005791 algae growth Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- 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
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
- B01D35/1435—Filter condition indicators with alarm means
-
- 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
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/147—Bypass or safety valves
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention relates to cleaning device technical field.The present invention provides a kind of central air-conditioning filtration system, the electric cabinet run including circulating water line and control circulating water line according to setting order, the drain water circuit controlled between water inlet pipe and return pipe provided with least one set of filter connected side by side above and by the 4th motor-driven valve, filter described in every group includes being arranged on the first motor-driven valve of filter water inlet end and is arranged on the second motor-driven valve of filter water side, filter is provided with pressure gauge and pressure sensor, water flow sensor is provided between filter and the second motor-driven valve, drainpipe is provided between filter and the first motor-driven valve, drainpipe is provided with the 3rd motor-driven valve, screen pack is provided with filter.Central air-conditioning filtration system and filter method that the present invention is provided, carry out multiple circulating filtration and backwash, had both reduced central air-conditioning operating cost, also act energy-conservation and environment protecting, both have an economic benefit, and also had social benefit.
Description
Technical field
The present invention relates to central cleaning device technical field, and in particular to a kind of central air-conditioning filtering
System and its filter method.
Background technology
At present, in the circulation of central air-conditioning, cause because water quality is unstable and easily and be
The adverse consequences such as system fouling, burn into biological clay and bacterium algae growth.Central air-conditioning recirculated water exists
Run in cyclic process, the concentration of various salts accordingly increases, when Cl and SO4 ion concentrations
When higher, can make the antiseptic property of metal surface protection film reduces.Especially Cl ion half
Footpath is small, penetrability is strong, and being easily destroyed the diaphragm of metal surface increases the anode of its corrosion reaction
Process speed, causes the local corrosion of metal.The growth of microorganism can also produce bacterium in water
Property corrosion, such as sulfatereducting bacteria, iron bacteria.
In central air-conditioning recirculating cooling water system, the heavy carbonate concentration dissolved is with evaporation
Concentration and increase, make when its concentration reaches saturation state, or on process heat exchanger heat transfer surface
When water temperature is raised, salt dissolution equilibrium is destroyed in water, it may occur that following reaction is incrustation scale
Generation, heat conductivility is very poor, has a strong impact on heat exchange efficiency.Central air conditioning water system equipment, pipe
The main material in road is carbon steel, and its corrosion product is mainly the hydration of the oxide of hydroxide and iron
Thing, in colloidal state, stably suspends in water, but easily heated when by heat exchanger
The mutual coagulation sedimentation of face colloid.The Fe2O3 of precipitation is due to its discontinuity and leakiness
And metal unprotect is acted on, and due to its magnetic, adhesion strength is strong, and than great, disappear
Except difficulty, dirt is formed.Microorganism can be divided into bacterium, fungi and algae, because it is dispersed in
Each corner of nature, and the temperature of central air-conditioning recirculated water, salt, pH value, dissolved oxygen
Deng relatively more suitable microbial reproduction.If failing to be effectively controlled, microorganism constantly grows, and
A large amount of mucus are secreted out of, insoluble impurities in water is bonded together, generation foundry loam, which is attached to, to be set
The inner surface of standby and pipeline, hinders the flowing and system heat exchange of water, and in Stickydeposit place
Often cause underdeposit corrosion.This three such as above-mentioned incrustation scale, corrosion and microbial growth
Isolated, be interknit with it is interactional, such as incrustation scale and dirt are often combined one
Rise, fouling and biological clay can cause or aggravate corrosion again.These incrustation scales, erosion and biology
Foundry loam brings serious harm to the safe operation of central air-conditioning.Equipment pipe incrustation scale adheres to：
The thermal conductivity factor of incrustation scale is extremely low, reduction heat transfer efficiency or irregular, the system of influence central air-conditioning of conducting heat
Cold effect, raises condenser pressure, and the increase positive backside pressure of compressor is poor, causes motor to be born
Lotus increases, and causes high-voltage operation, increases power consumption, main frame high pressure can be directly contributed when serious
Accidental shutdown.Reduce system water circulation amount：Deposit, such as incrustation scale, microorganism viscosity mud covering
In central air conditioning water system equipment pipe or heat exchanger water passage surface, serious will block pipeline,
Water flowing is hindered, chilled water internal circulating load is reduced, heat exchanger effectiveness is further reduced.System pipes
Often the anvil cinder caused by corrosion comes off for road and equipment inner wall, and the anvil cinder come off can block coil pipe, make sky
Exchange thermal effect to decline, the significant outages accidents such as perforation leakage are caused when serious；Corrosion simultaneously
Shortened dramatically in the presence of the service life of equipment is also made.In order to prevent the formation of incrustation scale, control device
And the corrosion of pipeline, raising heat exchanger effectiveness, the saving energy, the service life of extension device,
Central air-conditioner circulating water system must just be handled and daily Handling of Stabilizing Water Quality, to drop
The corrosion of low equipment and pipeline, control fouling generation, suppresses microbial proliferation, it is ensured that system is just
Normal safe operation.
The content of the invention
It is an object of the invention to overcome defect of the prior art, the present invention is in central air-conditioning mistake
The inside of filter system and its filter method is provided with Circulated water filter, not only can be effectively to sky
The soft water of interior circulation is adjusted to be filtered, moreover it is possible to which recycling reaches the purpose of energy-conservation, it is also effective
Operating efficiency is improved, is not influenceing normally to use with the state of safe operation, filtering is filled
Put and changed and maintenance and repair.
To achieve the above object, the technical solution adopted in the present invention is a kind of central air-conditioning filtering
System, including the circulating water line being connected to each other by water inlet pipe and return pipe and the control circulation
The electric cabinet that water lines are run according to setting order, provided with extremely between the water inlet pipe and return pipe
Lack more than the one group filter connected side by side and the drain water circuit controlled by the 4th motor-driven valve,
Filter described in every group includes being arranged on the first motor-driven valve of filter water inlet end and is arranged on
Second motor-driven valve of filter water side, the filter is provided with pressure gauge and pressure sensing
Device, between the filter and the second motor-driven valve be provided with water flow sensor, the filter and
Drainpipe is provided between first motor-driven valve, the drainpipe is provided with the 3rd motor-driven valve, the mistake
Screen pack is provided with filter.
Further, the electric cabinet includes being arranged on the single-chip microcomputer of inside and is arranged on outside and single
Piece machine carries out the display screen, switch and several warning lamps of signal transmission, the single-chip microcomputer difference
Sensed with the first motor-driven valve, the second motor-driven valve, the 3rd motor-driven valve, pressure sensor and water-carrying capacity
Device is connected.
Further, the direction that the screen pack is set is provided with angle with filtered water stream direction, described
The angle of angle is more than 0 ° and less than 90 °.
Further, the angle of the angle is 30 °, 45 ° or 90 °.
Further, the specification of the screen pack is 70~100 mesh.
Further, the filter is 4 groups.
Present invention also offers a kind of filter method of use central air-conditioning filtration system, including with
Lower step：
Step 1, the diameter of water inlet pipe is divided into n parts, the pipeline for obtaining every group of filter is straight
Footpath numerical value and setting filter are the group number of n groups and are arranged in parallel connection；
Single-chip microcomputer in step 2, the switch for opening control cabinet, control cabinet opens every group of mistake simultaneously
The first motor-driven valve and the second motor-driven valve of device are filtered, the 3rd motor-driven valve is closed and central air-conditioning is supplied water
The recirculated water that system is provided carries out direct circulation filtering, and single-chip microcomputer passes water-carrying capacity inductor, pressure
Sensor and pressure gauge start；
Step 3, when circulate impurities in water blocked by the screen pack in filter when, filter goes out
The water-carrying capacity inductor and pressure sensor of water end (W.E.) are respectively by water-carrying capacity and water pressure numerical value change
Single-chip microcomputer is transferred to, single-chip microcomputer logarithm value changes are analyzed, when reaching numerical value set in advance
During the peak of change, single-chip microcomputer starts warning lamp and display screen is shown and warned；
After step 4, operating personnel are examined the numerical value of warning lamp and display screen, start anti-
Flush command, carries out backwash step；
Step 5, single-chip microcomputer are ordered according to backwash, close the first motor-driven valve, then open the
Three motor-driven valves, the recirculated water with pressure is rinsed to the impurity on screen pack, under being rinsed
Impurity is discharged from drainpipe；
Step 6, the water-carrying capacity inductor and pressure sensor are again respectively by water-carrying capacity and water
Pressure value change is transferred to single-chip microcomputer, and single-chip microcomputer logarithm value changes are analyzed, pre- when reaching
During the minimum of the numerical value change first set, single-chip microcomputer opens the first motor-driven valve, is then shut off the
Three motor-driven valves, continue to filter；
Step 7, water-carrying capacity inductor and the water-carrying capacity and water of pressure sensor when every group of setting
When pressure value change is abnormal, single chip microcomputer machine logarithm value changes are analyzed, pre- when reaching
During the dangerous numerical value change first set, single-chip microcomputer starts warning lamp and display screen is shown and warned
Show, while the 4th motor-driven valve is opened in single-chip microcomputer control carries out safeguard protection backflow；
Step 8, repeat the above steps 2 to step 7 several times, carry out it is continual to central hollow
Adjust the filtering of recirculated water.
The advantages of the present invention are：The central air-conditioning filtration system that the present invention is provided
And filter method, multiple circulating filtration and backwash can be carried out, central air-conditioning operation had both been reduced
Cost, also acts energy-conservation and environment protecting, both had an economic benefit, and also had social benefit.
Brief description of the drawings
Fig. 1 is the structural representation of central air-conditioning filtration system of the present invention.
In figure：1st, water inlet pipe；2nd, filter；3rd, the first motor-driven valve；4th, display screen；5、
Electric cabinet；6th, switch；7th, warning lamp；8th, the 4th motor-driven valve；9th, drainpipe；10th,
Two motor-driven valves；11st, return pipe；12nd, water-carrying capacity inductor；13rd, the 3rd motor-driven valve；14、
Pressure gauge；15th, pressure sensor；16th, delivery port.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is further retouched
State.The following examples are only intended to illustrate the technical solution of the present invention more clearly, and can not be with
This is limited the scope of the invention.
Embodiment 1
As shown in figure 1, the invention provides a kind of central air-conditioning filtration system, including by intaking
Circulating water line that pipe 1 and return pipe 11 are connected to each other and the circulating water line is controlled according to setting
The electric cabinet 5 of fixed order operation, water inlet pipe 1 and delivery port 16 connect with central air-conditioning circulating water line
Connect.Provided with least one set of filtering connected side by side above between the water inlet pipe 1 and return pipe 11
Device and the drain water circuit controlled by the 4th motor-driven valve 8, filter described in every group include setting
Put the first motor-driven valve 3 and the second electricity for being arranged on the water side of filter 2 in the water inlet end of filter 2
Dynamic valve 10, the filter 2 is provided with pressure gauge 14 and pressure sensor 15, the filter 2
And second be provided with water flow sensor 12 between motor-driven valve 10, the filter 2 and first is electronic
Drainpipe 9 is provided between valve 3, the drainpipe 9 is provided with the 3rd motor-driven valve 13, the filtering
Screen pack is provided with device 2.The electric cabinet 5 includes the single-chip microcomputer for being arranged on inside and set outside
Portion carries out the display screen 4, switch 6 and several warning lamps 7 of signal transmission with single-chip microcomputer, described
Single-chip microcomputer is passed with the first motor-driven valve 3, the second motor-driven valve 10, the 3rd motor-driven valve 13, pressure respectively
Sensor 15 and water flow sensor 12 are connected.Wherein, the screen pack is set direction and filtering
Water (flow) direction is provided with angle, and the angle of the angle is more than 0 ° and less than 90 °, it is preferred that
The angle of the angle is 30 °, 45 ° or 90 °.In the present embodiment, the rule of the screen pack
Lattice are 70~100 mesh.
Present invention also offers the filter method of the central air-conditioning filtration system used, the filtering
Method comprises the following steps：
Step 1, the diameter of water inlet pipe 1 is divided into n parts, obtains the pipeline of every group of filter
Diameters and setting filter are the group number of n groups and are arranged in parallel connection；In the present embodiment,
A diameter of 200mm of water inlet pipe 1 and return pipe 11, the pipe diameter of every group of filter is
50mm, the filter of setting is that 4 groups, i.e. n are 4.In the present embodiment, what screen pack was set
Direction is 90 ° or 45 ° provided with angle with filtered water stream direction；
Single-chip microcomputer in step 2, the switch 6 for opening control cabinet 5, control cabinet 5 opens every group simultaneously
The first motor-driven valve 3 and the second motor-driven valve 10 of filter, close 13 pairs of centers of the 3rd motor-driven valve
The recirculated water that air-conditioning water system is provided carries out direct circulation filtering, and single-chip microcomputer is by water-carrying capacity inductor
12nd, pressure sensor 15 and pressure gauge 14 start；
Step 3, when circulate impurities in water blocked by the screen pack in filter 2 when, central air-conditioning
The impurity of recirculated water is mainly iron oxide, wherein a Fe 3 O is main component.Filter 2
The water-carrying capacity inductor 12 and pressure sensor 15 of water side are respectively by water-carrying capacity and water pressure number
Value changes are transferred to single-chip microcomputer, and single-chip microcomputer logarithm value changes are analyzed, preset when reaching
Numerical value change peak when, single-chip microcomputer starts warning lamp 7 and display screen 4 and is shown and warned
Show；
After step 4, operating personnel are examined the numerical value of warning lamp 7 and display screen 4, start
Backwash order, carries out backwash step；
Step 5, single-chip microcomputer are ordered according to backwash, close the first motor-driven valve 3, then open the
Three motor-driven valves 13, the recirculated water with pressure is rinsed to the impurity on screen pack, is rinsed down
Impurity discharged from drainpipe 9；
Step 6, the water-carrying capacity inductor 12 and pressure sensor 15 are again respectively by water-carrying capacity
Be transferred to single-chip microcomputer with water pressure numerical value change, single-chip microcomputer logarithm value changes are analyzed, when up to
To numerical value change set in advance minimum when, single-chip microcomputer open the first motor-driven valve 3, then
The 3rd motor-driven valve 13 is closed, continues to filter；
Step 7, water-carrying capacity inductor 12 and the water-carrying capacity of pressure sensor 15 when every group of setting
With water pressure numerical value change it is abnormal when, single chip microcomputer machine logarithm value changes are analyzed, when up to
During to dangerous numerical value change set in advance, single-chip microcomputer starts warning lamp 7 and display screen 4 is shown
Show and warn, while the 4th motor-driven valve 8 is opened in single-chip microcomputer control carries out safeguard protection backflow；
Step 8, repeat the above steps 2 to step 6 several times, carry out it is continual to central hollow
Adjust the filtering of recirculated water.
Central air-conditioning filtration system and filter method that the present invention is provided, can repeatedly be circulated
Filtering and backwash, had both reduced central air-conditioning operating cost, also acted energy-conservation and environmental protection effect
Really, both have an economic benefit, also there is social benefit.
Described above is only the preferred embodiment of the present invention, it is noted that led for this technology
, without departing from the technical principles of the invention, can be with for the those of ordinary skill in domain
Some improvements and modifications are made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of central air-conditioning filtration system, including by water inlet pipe (1) and return pipe (11)
What the circulating water line and the control circulating water line being connected to each other were run according to setting order
Electric cabinet (5), it is characterised in that set between the water inlet pipe (1) and return pipe (11)
There is the filter that more than at least one set connects side by side and controlled by the 4th motor-driven valve (8)
Drain water circuit, filter described in every group includes being arranged on the first of filter (2) water inlet end
Motor-driven valve (3) and the second motor-driven valve (10) for being arranged on filter (2) water side, it is described
Filter (2) is provided with pressure gauge (14) and pressure sensor (15), the filter (2)
And second be provided with water flow sensor (12), the filter (2) between motor-driven valve (10)
And first be provided with drainpipe (9) between motor-driven valve (3), the drainpipe (9) is provided with the
Screen pack is provided with three motor-driven valves (13), the filter (2).
2. central air-conditioning filtration system as claimed in claim 1, it is characterised in that the electricity
Control case (5) includes being arranged on the single-chip microcomputer of inside and being arranged on outside and single-chip microcomputer carrying out signal
Display screen (4), switch (6) and several warning lamps (7) of transmission, the single-chip microcomputer point
Do not passed with the first motor-driven valve (3), the second motor-driven valve (10), the 3rd motor-driven valve (13), pressure
Sensor (15) and water flow sensor (12) connection.
3. central air-conditioning filtration system as claimed in claim 1, it is characterised in that the mistake
Direction and the filtered water stream direction that filter screen is set are provided with angle, the angle of the angle be more than
0 ° and less than 90 °.
4. central air-conditioning filtration system as claimed in claim 3, it is characterised in that described
The angle of angle is 30 °, 45 ° or 90 °.
5. central air-conditioning filtration system as claimed in claim 1, it is characterised in that described
The specification of screen pack is 70~100 mesh.
6. central air-conditioning filtration system as claimed in claim 1, it is characterised in that described
Filter is 4 groups.
7. a kind of usage right requires the filtering of any described central air-conditioning filtration systems of 1-6
Method, it is characterised in that the filter method comprises the following steps：
Step 1, the diameter of water inlet pipe (1) is divided into n parts, obtains every group of filter
Pipe diameter numerical value and set filter for n groups group number and be arranged in parallel connection；
Single-chip microcomputer in step 2, the switch (6) for opening control cabinet (5), control cabinet (5)
The first motor-driven valve (3) and the second motor-driven valve (10) of every group of filter are opened simultaneously, are closed
The recirculated water that 3rd motor-driven valve (13) is provided central air-conditioning water system carries out direct circulation filtering,
Single-chip microcomputer opens water-carrying capacity inductor (12), pressure sensor (15) and pressure gauge (14)
It is dynamic；
Step 3, when circulate impurities in water blocked by the screen pack in filter (2) when, mistake
The water-carrying capacity inductor (12) and pressure sensor (15) of filter (2) water side respectively will
Water-carrying capacity and water pressure numerical value change are transferred to single-chip microcomputer, and single-chip microcomputer logarithm value changes are divided
Analysis, when reaching the peak of numerical value change set in advance, single-chip microcomputer starts warning lamp (7)
Shown and warned with display screen (4)；
Step 4, operating personnel are examined the numerical value of warning lamp (7) and display screen (4)
Afterwards, start backwash order, carry out backwash step；
Step 5, single-chip microcomputer are ordered according to backwash, are closed the first motor-driven valve (3), are then beaten
The 3rd motor-driven valve (13) is driven, the recirculated water with pressure is rinsed to the impurity on screen pack,
Impurity under being rinsed is discharged from drainpipe (9)；
Step 6, the water-carrying capacity inductor (12) and pressure sensor (15) are distinguished again
Water-carrying capacity and water pressure numerical value change are transferred to single-chip microcomputer, single-chip microcomputer logarithm value changes are divided
Analysis, when reaching the minimum of numerical value change set in advance, single-chip microcomputer opens the first motor-driven valve
(3) the 3rd motor-driven valve (13), is then shut off, continues to filter；
Step 7, water-carrying capacity inductor (12) and pressure sensor (15) when every group of setting
Water-carrying capacity and abnormal water pressure numerical value change when, single chip microcomputer machine logarithm value changes are divided
Analysis, when reaching dangerous numerical value change set in advance, single-chip microcomputer start warning lamp (7) and
Display screen (4) is shown and warned, while the 4th motor-driven valve (8) is opened in single-chip microcomputer control
Carry out safeguard protection backflow；
Step 8, repeat the above steps 2 to step 7 several times, carry out it is continual to center
The filtering of air-conditioner circulating water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053644.6A CN106994266B (en) | 2016-01-26 | 2016-01-26 | Central air conditioner filtering system and filtering method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053644.6A CN106994266B (en) | 2016-01-26 | 2016-01-26 | Central air conditioner filtering system and filtering method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106994266A true CN106994266A (en) | 2017-08-01 |
| CN106994266B CN106994266B (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610053644.6A Active CN106994266B (en) | 2016-01-26 | 2016-01-26 | Central air conditioner filtering system and filtering method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN106994266B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704369A (en) * | 2018-06-13 | 2018-10-26 | 广州发展集团股份有限公司 | Recirculated water water filter, system and drainage method |
| CN113028290A (en) * | 2021-04-28 | 2021-06-25 | 中建五局安装工程有限公司 | Pipeline system with flushing function and flushing method |
| CN113617096A (en) * | 2021-09-03 | 2021-11-09 | 南通普菲特涂装有限公司 | High-efficient electrophoresis lacquer filter equipment |
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| EP0361217A1 (en) * | 1988-09-27 | 1990-04-04 | Boll & Kirch Filterbau GmbH | Brack-wash filter |
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| CN108704369A (en) * | 2018-06-13 | 2018-10-26 | 广州发展集团股份有限公司 | Recirculated water water filter, system and drainage method |
| CN108704369B (en) * | 2018-06-13 | 2020-11-24 | 广州发展集团股份有限公司 | Circulating water filter device, system and water filtering method |
| CN113028290A (en) * | 2021-04-28 | 2021-06-25 | 中建五局安装工程有限公司 | Pipeline system with flushing function and flushing method |
| CN113617096A (en) * | 2021-09-03 | 2021-11-09 | 南通普菲特涂装有限公司 | High-efficient electrophoresis lacquer filter equipment |
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| Publication number | Publication date |
|---|---|
| CN106994266B (en) | 2024-04-19 |
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