CN102305440B - Dehumidifying and dust-removing method - Google Patents
Dehumidifying and dust-removing method Download PDFInfo
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- CN102305440B CN102305440B CN201110296043.5A CN201110296043A CN102305440B CN 102305440 B CN102305440 B CN 102305440B CN 201110296043 A CN201110296043 A CN 201110296043A CN 102305440 B CN102305440 B CN 102305440B
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Abstract
The invention provides a dehumidifying and dust-removing method which comprises the following steps: a sensor detects the humidity value and dust concentration at the air inlet of an air channel; when the humidity value is greater than or equal to the first humidity threshold value, a control device starts a dehumidifying device, so as to dehumidify the air channel, and when the humidity value is smaller than or equal to the second humidity threshold value, the control device switches off the dehumidifying device, so as to stop the dehumidifying operation; and when the dust concentration is greater than or equal to the first dust concentration threshold value, the control device starts the dust-removing device, so as to remove dust in the air channel, and when the dust concentration is smaller than or equal to the second dust concentration threshold value, the control device switches off the dust-removing device, so as to stop the dust-removing operation. According to the method provided by the invention, dehumidifying and dust removal are automatically controlled by way of setting threshold valves, thereby achieving the effect that the humidity and dust concentration in the air environment of machinery rooms are controlled within the range required by users, and thus the life service of equipment in the machinery rooms is increased and energy consumption is reduced.
Description
Technical field
The present invention relates generally to airhandling equipment, more specifically, relate to dehumidifying dust collection method.
Background technology
In today of computer technology develop rapidly, building environment faces variety of problems, and cabinet micro-environment also more and more comes into one's own, and air purity and humidity, as factor wherein, also more and more receive the concern of people.The infringement of dust to computer is larger, time as too many in the dust on disk and magnetic head, light then cause reading and writing mistake, heavy then cause and draw the problem such as dish, if and air humidity is too high, the interposer contact resistance of components and parts joint area can be made to increase, and make it faulty operation, the components and parts separately likely making sealing bad are breakdown.In addition, air purity and relative humidity sharply change, and can shorten the component lives such as transistor.Therefore the dust removing integrated machine that dehumidifies is the indispensable a kind of equipment of machine room data center.
A kind of deduster is provided in prior art, it comprises blast pipe (1), centrifugal blower (2), diffusion type deduster (3), silencer (4), water tank bathroom (5), steam-water separator (6), water level restraint device (7), anemostat (16), it is characterized in that being provided with air intake adjusting device (8) on blast pipe (1), ring baffle (13) is provided with at the mouth of pipe of anemostat (16), air intake adjusting device (8) comprises the blast pipe (1) that it has circular hole (11) and is provided with rotating annular ring (10) at blast pipe (1), annular ring (10) has hole (12), ring baffle (13) comprises Internal baffle (14) and outer baffle (15), Internal baffle (14) is in two end openings, the ring-shaped of middle indent, outer baffle (15) becomes two end openings, the ring-shaped of middle evagination.Technique scheme, can realize the object of dedusting to a certain extent, thus can obtain certain dust removing effects.
A kind of dehumidifier of adjustable dehumidifying effect is provided in prior art, comprise compressor, condenser, throttling arrangement, magnetic valve, adjustable by-pass valve, evaporimeter, wherein, described compressor connects condenser, and then be connected to choke valve, then compressor is back to through evaporator, solenoid in parallel and by-passing valve at choke valve two ends.Technique scheme can dehumidify to working environment to a certain extent and regulate dehumidifying effect.
But above-mentioned two technical schemes, in respective dehumidifying dust removal process, are not measured the dust concentration of environment and humidity, can only feel to judge whether to need to open deduster and dehumidifier by user.In dedusting and dehumidification process, deduster and dehumidifier, once open, just carry out dust removal operation and dehumidification operation always, and need staff in person to close deduster and dehumidifier.In addition, before deduster and dehumidifier start, among deduster and dehumidifier work, and after deduster and dehumidifier shut-down operation, all cannot understand the occurrence of dust concentration in machine room air ambient and humidity, and can not by the dust concentration in machine room air ambient and humid control within the specific limits, when the dust concentration in machine room air ambient and humidity meet the demands, also carry out dedusting and dehumidifying always, dust removal machine and dehumidifier can not be closed in time, reduce the service life of dust removal machine and dehumidifier, waste energy.In addition, to the cleanliness factor of air ambient and humidity, freestanding dust removal machine and dehumidifier, can not require that higher building environment is taken into account simultaneously carry out dust removal operation and dehumidification operation.
Summary of the invention
By technique scheme, dedusting and dehumidifying are carried out to working environment in prior art, can not carry out in time, automatically controlling dust removal machine and dehumidifier startup and stopping, concrete dust concentration value in machine room air ambient and humidity value cannot be understood and the defect of carrying out dedusting and dehumidifying can not be taken into account, the present invention proposes the dehumidifying dust collection method that can address the aforementioned drawbacks.
The invention provides a kind of dehumidifying dust collection method, comprising: the humidity value of the air inlet in sensor sensing air channel and dust concentration; When humidity value is more than or equal to the first humidity threshold, control device starts dehydrating unit, and to carry out dehumidification operation to air channel, when humidity value is less than or equal to the second humidity threshold, control device cuts out dehydrating unit, to stop dehumidification operation; And when dust concentration is more than or equal to the first dust concentration threshold value, control device starts dust arrester, to carry out dust removal operation to air channel, when dust concentration is less than or equal to the second dust concentration threshold value, control device cuts out dust arrester, to stop dust removal operation.
Preferably, dust arrester comprises the dedusting fan at air inlet and/or the air outlet place being arranged on air channel.
Preferably, dehumidifying dust collection method comprises further: carrying out in dust removal operation to air channel, and when the difference of the first air pressure of air inlet and second air pressure at air outlet place is greater than threshold pressure differential, filter element replacing warning device sends filter element replacing warning to control device.
Preferably, when the difference of the first air pressure of air inlet and second air pressure at air outlet place is greater than threshold pressure differential, filter element replacing warning device sends to control device the step that filter element replacing reports to the police and comprises: the first air pressure and the second air pressure are acted on filter element replacing warning device respectively; And when the difference of the first air pressure and the second air pressure is greater than threshold pressure differential, triggers filter element replacing warning device and send filter element replacing and report to the police.
Preferably, the rotating speed of threshold pressure differential and blower fan is proportional.
Preferably, the dust collection method that dehumidifies comprises further: the information displaying that the duty of dust arrester, the rotating speed of blower fan and filter element replacing are reported to the police by control device on the display apparatus.
Preferably, humidity value, the first humidity threshold and the second humidity threshold are rh value.
Preferably, the dehydrating unit dehumidifying blower fan that comprises air inlet and/or the air outlet place being arranged on air channel and the heat exchanger that is arranged in air channel.
Preferably, control device startup dehydrating unit comprises: control device starts dehumidifying blower fan and opens the refrigerant control valve of heat exchanger; And control device closedown dehydrating unit comprises: control device cuts out dehumidifying blower fan and cuts out the refrigerant control valve of heat exchanger.
Preferably, the dust collection method that dehumidifies comprises further: the temperature value in the air channel in the scheduled time and humidity value show on the display apparatus by control device.
Preferably, when the change of humidity in the given time and/or variations in temperature abnormal time, the equipment state that control device shows in the residing machine room space in air channel is on the display apparatus abnormal.
Preferably, equipment comprises server, machine room refrigeration plant and machine room controller switching equipment, and humidity change comprises the change of humidity value and the rate of change of humidity value, and variations in temperature comprises the change of temperature value and the rate of change of temperature value.
Preferably, humidity value, the first humidity threshold and the second humidity threshold are rh value.
Utilize dehumidifying dedusting of the present invention, according to the actual needs of machine room air ambient, automatic control dust removing and dehydrating unit start and stop, thus improve the utilization rate of dust pelletizing system and dehumidification system, improve the service life of dust pelletizing system and dehumidification system, effectively to control energy consumption, be conducive to economize energy.In addition, in dehumidifying dust removal operation, the concrete dust concentration value in machine room air ambient and humidity value can be understood in time.Thus while realization efficient dehumidifying dedusting, by the dust concentration of machine room air ambient and humid control in the scope that user requires, for industrial equipment provides stable running environment, improve the service life of equipment.In addition, freestanding dust arrester and dehydrating unit are carried out integrated, not only can take into account and carry out dehumidifying dust removal operation, and decrease and take up room, in order to machine room provides the useful space to greatest extent.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from description, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write description, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the overall flow figure of dust collection method of dehumidifying according to an embodiment of the invention;
Fig. 2 is the flow chart of dust collection method of dehumidifying according to an embodiment of the invention;
Fig. 3 is the duty of display unit displays temperature, humidity, dehydrating unit on screen according to an embodiment of the invention and the diagram of dehumidifying rotation speed of fan; And
Fig. 4 is the curve map of the relation between the rotating speed of dedusting fan according to an embodiment of the invention and threshold pressure differential.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the overall flow figure of dust collection method according to an embodiment of the invention.
Step S100: the humidity value of the air inlet in sensor sensing air channel and dust concentration.
Humidity value is rh value, is the absolute humidity of humid air and the ratio of the maximum absolute humidity that may reach at identical temperature, also can be the ratio of steam partial pressure and water saturation pressure at identical temperature in humid air.Sensor is relative humidity sensor, and this sensor is arranged on the air inlet in air channel, and the rh value of the air of sensing air inlet, that is, sense the rh value of the air in machine room.In the present embodiment, relative humidity sensor senses the rh value in the air ambient of server room usually.Sensor is dust concentration sensor, by the air inlet of this sensor setting in air channel, monitors the dust concentration in air ambient.Dust concentration also claims dust content or air purity, and such as, the particle diameter of dust is more than or equal to the dust number of 0.5 μm.In the present embodiment, dust concentration sensor senses the dust concentration in the air ambient of server room usually.
Step S102: when humidity value is more than or equal to the first humidity threshold, control device starts dehydrating unit, to carry out dehumidification operation to air channel.
In this step, the rh value that relative humidity sensor senses by control device and the first humidity threshold (for first-phase is to humidity threshold) compare, such as, in this embodiment, first humidity threshold is 65%, and user before start, can arrange the first humidity threshold by control device, if do not pre-set, then the default value that control device is arranged according to supplier operates.In addition, the demand according to user can change the first humidity threshold, such as, the first humidity threshold can be set to be less than 65%, also the first humidity threshold can be set to be greater than 65%.When relative humidity is more than or equal to the first humidity threshold, control device starts dehydrating unit, wet gas is sent into air channel by air inlet by the dehumidifying blower fan in dehydrating unit, in air channel, humid air is dehumidified, then dehumidifying blower fan is passed through by outside the air discharge machine of drying, air in machine room circulates again and again, thus reduces indoor humidity.
Step S104: when humidity value is less than or equal to the second humidity threshold, control device cuts out dehydrating unit, to stop dehumidification operation.
In dehumidification operation process, the rh value that relative humidity sensor senses by control device and the second humidity threshold (for second-phase is to humidity threshold) compare, such as, in this embodiment, second-phase is 50% to humidity threshold, as mentioned above, user can before start, arrange the second humidity threshold by control device, if do not pre-set, then the default value that control device is arranged according to supplier operates.In addition, the demand according to user can change the second humidity threshold, such as, the second humidity threshold can be set to be less than 50%, also the second humidity threshold can be set to be greater than 50%.And, during dehumidification operation, according to the requirement of user to machine room air ambient, the second humidity threshold can be reset.When the relative humidity of machine room air is less than or equal to the second humidity threshold, control device cuts out dehydrating unit, stops dehumidification operation.
Step S106: when dust concentration is more than or equal to the first dust concentration threshold value, control device starts dust arrester, to carry out dust removal operation to air channel.
In this step, the dust concentration that dust concentration sensor senses by control device and the first dust concentration threshold value compare, such as, in this embodiment, first dust concentration threshold value is the dust number that dust particle diameter is more than or equal to 0.5 μm is 1,8000/cm
3.When dust concentration is more than or equal to this first dust concentration threshold value, control device starts dust arrester, dusty gas is sent into air channel by air inlet by the dedusting fan in dust arrester, by slightly imitating, (low efficient filter filters the larger dust of particle diameter to inferior high efficiency filter, inferior high efficiency filter filters the less dust of particle diameter) filter, dust is delayed at filter surfaces, after purification, gas is taken out by force by high pressure positive blower, be expelled to outside air channel through air outlet, directly enter indoor (also can air duct drain into outdoor), wherein, efficiently, inferior high efficiency filter has filter core respectively.In the present embodiment, filter core adopts filter screen, and high efficiency particulate air filter has coarse strainer, and inferior high efficiency filter has fie screen.Filter owing to having two kinds of filters, thus good dust removing effects can be realized.In other embodiments, other filter cores can also be adopted, such as, Wire-wound filter core, foldable filter element, activated carbon cartridge, resin filter element etc.
Step S108: when dust concentration is less than or equal to the second dust concentration threshold value, control device cuts out dust arrester, to stop dust removal operation.In this step, the dust concentration that dust concentration sensor senses by control device and the second dust concentration threshold value compare, such as, in this embodiment, second dust concentration threshold value is the dust number that dust particle diameter is more than or equal to 0.5 μm is 15,000/cm
3.When dust concentration is less than or equal to this second dust concentration threshold value, control device cuts out dust arrester, thus stops dust removal operation.
Adopt above-mentioned dehumidifying dust collection method, can according to the humidity of user to machine room working environment and the requirement of dust concentration, first humidity threshold, the first dust concentration threshold value, the second humidity threshold and the second dust concentration threshold value are set flexibly, thus the humidity of machine room working environment and dust concentration are controlled in the scope of user's requirement.Dehumidification control device can to control to dehumidify the startup of dust removal operation and stopping based on the first humidity threshold and the second humidity threshold and the first dust concentration threshold value and the second dust concentration threshold value respectively automatically, wherein, when the relative humidity of air in machine room and dust concentration are greater than the first humidity threshold and the first dust concentration threshold value respectively, carry out respectively dehumidifying and dust removal operation, in dehumidifying and dust removal operation process, if when the relative humidity of the air in machine room and dust concentration are less than the second humidity threshold and the second dust concentration threshold value respectively, timely stopping dehumidifying and dust removal operation.Thus the automatic control achieved dehumidifying dust removal operation, be conducive to economize energy, and improve the service life of dehumidifying dust pelletizing system.
In addition, become one freestanding dust arrester and dehydrating unit machine, can meet and higher demand is required to the humidity of machine room air ambient and dust concentration simultaneously, and can according to the needs of machine room air ambient, dehydrating unit and dust arrester can be started simultaneously, or start one of dehydrating unit and dust arrester, the energy can be utilized to greatest extent, thus avoid unnecessary energy energy expense.In addition, dehumidifying dust removing integrated machine is compact, and the space taking machine room reduces, and can save the useful space for machine room.
Fig. 2 is the flow chart of dust collection method of dehumidifying according to an embodiment of the invention.
Step S200: the humidity value of the air inlet in sensor sensing air channel and dust concentration.
Step S202: when humidity value is more than or equal to the first humidity threshold, control device starts dehydrating unit, to carry out dehumidification operation to air channel.
Dehydrating unit comprises: the dehumidifying blower fan being arranged on the air inlet in air channel and/or air outlet place and the heat exchanger be arranged in air channel.Heat exchanger is the equipment partial heat of hot fluid being passed to cold fluid, also known as heat exchanger.Heat exchanger is the common apparatus of chemical industry, oil, power, food and other many industrial department, occupies critical role aborning.In Chemical Manufacture, heat exchanger can be used as heater, cooler, condenser, evaporimeter and reboiler etc., applies more extensive.
In the present embodiment, heat exchanger is used as condenser.In the present embodiment, control device starts dehydrating unit, while namely starting dehumidifying blower fan, opens the refrigerant control valve of heat exchanger.In dehumidification operation, the humid air in air channel is entered by dehumidifying blower fan, pass through heat exchanger, steam in humid air condenses into water through heat exchanger, separate from air, therefore humid air becomes dry air, by dehumidifying blower fan, dry air is entered indoor, realizes dehumidifying by the continuous circulation of air.
Before dehumidification operation or in dehumidification operation, dehumidifying rotation speed of fan can being set, when comprising two dehumidifying blower fans, start simultaneously and stop two dehumidifying blower fans, and the speed of the blower fan that dehumidifies being identical with other parameters.Carry out speed governing by pulse width modulation (PWM) to dehumidifying blower fan, the rotating speed of dehumidifying blower fan is divided into n grade (that is, 0 grade, 1 grade, 2 grades, 3 grades ... (n-1) level).Such as, when the rotation speed of fan that dehumidifies is divided into 16 grades and the rotation speed of fan that dehumidifies is the 15th grade, the maximum air-filtering ability of dehydrating unit is 15 cubic metres/min.In order to effectively process the dust in air, the ratio of machine room space size can be approximated according to dehydrating unit process air total amount in a hour, configuring the quantity of dehumidifying blower fan and the rotating speed of dehumidifying blower fan is set.Such as, when machine room space is 800 cubic metres, the maximum processing capability of dehydrating unit is 900 cubic metres/per hour, then rotation speed of fan should be set to 14 grades or 15 grades.
Step 204: the temperature value in the air channel in the scheduled time and humidity value show on the display apparatus by control device.
In dehumidification operation, in order to allow user simply, understand the variation tendency of air themperature and humidity intuitively, according to the instruction of control device, the screen of display unit with display data and record statistical function shows the temperature value in the scheduled time and humidity value.Fig. 3 is the diagram according to the duty of embodiments of the invention display unit displays temperature, humidity, dehydrating unit on screen and dehumidifying rotation speed of fan.Such as, in the present embodiment, display unit is the color LCD display unit of 4.3 cun.In addition, according to user's needs, other sizes and type can be selected.The length of the scheduled time can be selected arbitrarily, in the present embodiment, select 1 hour, that is, show the change curve in the temperature value of air in machine room and humidity value 1 hour on the display screen.As shown in Figure 3, duty and the dehumidifying rotation speed of fan of dehydrating unit is also shown on the display screen.
In addition, when the change of humidity in the given time and/or variations in temperature abnormal time, the equipment state that control device shows in the residing machine room space in air channel is on the display apparatus abnormal.When temperature remains unchanged and the lasting increase of humidity or reduction in the given time, or the humidity constant temperature that remains unchanged changes rapidly, namely, rapid increase or reduction, and dehumidification operation is normally carried out and constant temperature rising, or humiture rate of change is abnormal, then apparatus of load variation abnormality in environment is described, and this dehydrating unit is used in machine room working environment, so control device is on the screen of the display apparatus by ejecting the form display device abnormal state of dialog box, thus prompting user checks server, machine room refrigeration plant, machine room controller switching equipment etc.Such as, the operating temperature of machine room is 20 DEG C ~ 25 DEG C, rate of temperature change < 5 DEG C/h, when server runs operation irregularity and releases a large amount of heats, cause computer room temperature to rise fast and exceed rate of temperature change or more than 30 degree time, temperature sensor just can sense this abnormal temperature value, and according to the instruction of control device, to eject the form display device abnormal state of dialog box, thus prompting user checks server, machine room refrigeration plant, machine room controller switching equipment etc., ensures these calculator room equipment security of operation.
Step S206: when humidity value is less than or equal to the second humidity threshold, control device cuts out dehydrating unit, to stop dehumidification operation.In addition, control device cuts out dehydrating unit, while namely closing dehumidifying blower fan, closes the refrigerant control valve of heat exchanger.
In this embodiment, dehumidification operation being carried out to machine room working environment, by arranging the first humidity threshold and the second humidity threshold, automatically controlling dehumidification operation, ambient humidity is controlled in the humidity range of user's requirement.And the change curve of the temperature value that can show on the screen of the display apparatus in the scheduled time and humidity value, understand the variation tendency of the temperature and humidity of the air of machine room with enabling user's simple, intuitive.In addition, can server working environment state in monitoring room, thus provide good working environment for equipment such as the servers in machine room.
Step S208: when dust concentration is more than or equal to the first dust concentration threshold value, control device starts dust arrester, to carry out dust removal operation to air channel.
In the present embodiment, dust arrester comprises: the dedusting fan at the dedusting fan being arranged on the air inlet in air channel and/or the air outlet place that is arranged on air channel.Before dust removal operation or in dust removal operation, dedusting fan rotating speed can being set, when comprising two dedusting fans, start simultaneously and stop two dedusting fans, and the speed of dedusting fan being identical with other parameters.Carry out speed governing by pulse width modulation (PWM) to dedusting fan, the rotating speed of dedusting fan is divided into n grade (that is, 0 grade, 1 grade, 2 grades, 3 grades ... (n-1) level).Such as, when dedusting fan rotating speed is divided into 16 grades and dedusting fan rotating speed is the 15th grade, the maximum air-filtering ability of dust arrester is 15 cubic metres/min.In order to effectively process the dust in air, the ratio of machine room space size can be approximated according to dust arrester process air total amount in a hour, configure the quantity of dedusting fan and the rotating speed of dedusting fan is set.Such as, when machine room space is 800 cubic metres, the maximum processing capability of dust arrester is 900 cubic metres/per hour, then rotation speed of fan should be set to 14 grades or 15 grades.
Carrying out in dust removal operation to air channel, such as, the identical ventilation duct of two diameters can drawn from the air inlet in air channel with air outlet respectively, there is in these two ventilation ducts the air carried out after dust removal process of the surrounding air of air inlet and air outlet respectively.The air pressure of these two kinds of air is applied on filter element replacing warning device.Those skilled in the art it is expected in other way by gas pressure in filter element replacing warning device.When filter open type is good, in air inlet in surrounding air and air outlet carry out dust removal process after air draught head be less than threshold pressure differential (also can be described as the air pressure difference overload alarm threshold value of air inlet and air outlet), when on filter surfaces, dust is too much, during blocking filter screen, filter permeability reduces, thus the air after the surrounding air in air inlet and the dust removal process in air outlet exists larger pressure differential.
Step S210: when the difference of the first air pressure of air inlet and second air pressure at air outlet place is greater than threshold pressure differential, filter element replacing warning device sends filter element replacing to control device and reports to the police.
When the difference of the first air pressure of air inlet and second air pressure at air outlet place is greater than threshold pressure differential, filter element replacing warning device sends to control device the step that filter element replacing reports to the police and comprises: the first air pressure and the second air pressure are acted on filter element replacing warning device respectively; And when the difference of the first air pressure and the second air pressure is greater than threshold pressure differential, triggers filter element replacing warning device and send filter element replacing and report to the police.In this step, article two, ventilation air in tube has air inlet air pressure and air outlet air pressure respectively, be connected with filter element replacing warning device respectively and act on filter element replacing warning device, if the difference of air inlet pressure and air outlet pressure is greater than threshold pressure differential, then trigger filter element replacing warning device and send filter element replacing alarm signal, and this alarm signal is sent to control device.Filter element replacing warning device can be provided with spring, reed etc. to bear air pressure, but is not limited to this.
Before dust removal operation or in dust removal operation, after setting up speed, threshold pressure differential can be arranged by control device.Fig. 4 is the curve map of relation between the rotating speed of dedusting fan according to an embodiment of the invention and threshold pressure differential.In the diagram, the rotating speed of dedusting fan and threshold pressure differential are approximated to ratio.Rotating speed according to dedusting fan arranges threshold pressure differential.Such as, according to the rotating speed of 0 to 15 grade, threshold pressure differential can be arranged between 100Pa to 400Pa.Such as, when rotating speed grade is 1 grade, threshold pressure differential is set to 100Pa, when speed class is 13, threshold pressure differential is set to 340Pa.In addition, can, according to the requirement of user to dust removing effects, threshold pressure differential be set to less.
In this embodiment, by pre-setting the speed class of dedusting fan, realizing intake and regulating.By pre-setting the alarm threshold value of filter element replacing warning device, monitor filter screen permeability state, the timely more renew cartridge of prompting user.When user requires higher to air purity, alarm threshold value can be set to lower, realize when filter screen permeability reduces, can report to the police in time, prompting user more renew cartridge.Thus the present embodiment according to the different requirements of user, can realize the comparatively ideal dust removing effects that user requires.
In addition, can be under control of the control means, by the rotating speed of change curve, blower fan in the humiture parameter one hour of the duty (open and close) of dust arrester, gas (such as, 12 grades, 13 grades, or 15 grades) and the filter element replacing information displaying of reporting to the police is on the display apparatus.Such as, when threshold pressure differential is set to 200Pa, if when the pressure reduction of air inlet and air outlet is greater than 200Pa, filter element replacing warning device is triggered to control device and sends filter element replacing warning, and display unit is according to the instruction of control device, screen shows filter core fault.
Step 212: when dust concentration is less than or equal to the second dust concentration threshold value, control device cuts out dust arrester, to stop dust removal operation.
In this embodiment, dust removal operation being carried out to machine room working environment, by arranging the first dust concentration threshold value and the second dust concentration threshold value, automatically controlling dust removal operation, the dust concentration of environment is controlled within the scope of the dust concentration of user's requirement.
Following technique effect can be obtained: (1) is by arranging the first humidity threshold by utilizing dehumidifying dust collection method of the present invention, second humidity threshold, first dust concentration threshold value, with the second dust concentration threshold value, when dust concentration is more than or equal to the first dust concentration threshold value, when dust removal operation being carried out to air channel and is less than or equal to the second dust concentration threshold value when dust concentration, stop dust removal operation, thus achieve the dust density domination in machine room air ambient in the scope that user requires, achieve the automatic control to effective dedusting, and when humidity value is more than or equal to the first humidity threshold, control device starts dehydrating unit, to carry out dehumidification operation to air channel, when humidity value is less than or equal to the second humidity threshold, control device cuts out dehydrating unit, to stop dehumidification operation, thus achieve the humid control in machine room air ambient in the scope that user requires, achieve the automatic control to effectively dehumidifying, improve the service life of dedusting dehydrating unit, effectively to control energy consumption, reduce energy consumption.By Sensor monitoring ambient dust concentration, in dust removal operation, the concrete dust concentration value in machine room air ambient can be understood in time, effectively purifies machine room air ambient; (2) by the filter screen permeability of filter element replacing warning device monitor filter, when filter screen permeability difference, prompting user changes filter screen in time, and can need to arrange alarm threshold value flexibly according to user, thus can reach the comparatively ideal dust removing effects meeting user and require; (3) information that filter element replacing is reported to the police can be shown over the display, thus point out user's more renew cartridge in time, to maintain the good running status of dust arrester.When humidity and temperature variation abnormality within the predetermined time, display equipment abnormal state, prompting user checks, processes in time, the safe operation of Deterministic service device, machine room refrigeration plant, machine room controller switching equipment etc.The temperature value in the air channel in the scheduled time and humidity value can be shown, thus understand the variation tendency of the temperature and humidity of the air of machine room with enabling user's simple, intuitive.In addition, show the rotating speed of the duty of dust arrester, the duty of dehydrating unit and blower fan over the display, thus user can be allowed to grasp the running status of dehydrating unit like a cork.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. dehumidify a dust collection method, comprising:
The humidity value of the air inlet in sensor sensing air channel and dust concentration;
When described humidity value is more than or equal to the first humidity threshold, control device starts dehydrating unit, to carry out dehumidification operation to described air channel, when described humidity value is less than or equal to the second humidity threshold, described control device cuts out described dehydrating unit, to stop described dehumidification operation; And
When described dust concentration is more than or equal to the first dust concentration threshold value, control device starts described dust arrester, to carry out dust removal operation to described air channel, when described dust concentration is less than or equal to the second dust concentration threshold value, described control device cuts out described dust arrester, to stop described dust removal operation, wherein, carrying out in described dust removal operation to described air channel, when the difference of the first air pressure of described air inlet and second air pressure at described air outlet place is greater than threshold pressure differential, filter element replacing warning device sends filter element replacing to described control device and reports to the police.
2. dehumidifying dust collection method according to claim 1, is characterized in that, described dust arrester comprises and is arranged on the described air inlet in described air channel and/or the dedusting fan at air outlet place.
3. dehumidifying dust collection method according to claim 1, it is characterized in that, when the difference of the first air pressure of described air inlet and second air pressure at described air outlet place is greater than threshold pressure differential, filter element replacing warning device sends to described control device the step that filter element replacing reports to the police and comprises:
Described first air pressure and described second air pressure are acted on filter element replacing warning device respectively; And
When the difference of described first air pressure and described second air pressure is greater than threshold pressure differential, triggers filter element replacing warning device and send filter element replacing and report to the police.
4. dehumidifying dust collection method according to claim 3, is characterized in that, the rotating speed of described threshold pressure differential and described blower fan is proportional.
5. dehumidifying dust collection method according to claim 1, comprises further:
The information displaying that the rotating speed of the duty of described dust arrester, described blower fan and described filter element replacing are reported to the police by control device on the display apparatus.
6. the dehumidifying dust collection method according to any one of the claims, described humidity value, described first humidity threshold and described second humidity threshold are rh value.
7. dehumidifying dust collection method according to claim 1, is characterized in that, the dehumidifying blower fan that described dehydrating unit comprises air inlet and/or the air outlet place being arranged on described air channel and the heat exchanger be arranged in described air channel.
8. dehumidifying dust collection method according to claim 7, is characterized in that, control device starts dehydrating unit and comprises: described control device starts described dehumidifying blower fan and opens the refrigerant control valve of described heat exchanger; And
Control device cuts out dehydrating unit and comprises: described control device cuts out described dehumidifying blower fan and cuts out the refrigerant control valve of described heat exchanger.
9. dehumidifying dust collection method according to claim 1, comprises further:
Temperature value in air channel in the scheduled time and described humidity value show on the display apparatus by described control device.
10. dehumidifying dust collection method according to claim 9, it is characterized in that, when when described scheduled time humidity change and/or variations in temperature exception, the equipment state that described control device shows in the residing machine room space in described air channel is on said display means abnormal.
11. dehumidifying dust collection methods according to claim 10, it is characterized in that, described equipment comprises server, machine room refrigeration plant and machine room controller switching equipment, described humidity change comprises the change of described humidity value and the rate of change of described humidity value, and described variations in temperature comprises the change of described temperature value and the rate of change of described temperature value.
12. dehumidifying dust collection methods according to any one of claim 7 to 11, it is characterized in that, described humidity value, described first humidity threshold and described second humidity threshold are rh value.
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| CN201110296043.5A CN102305440B (en) | 2011-09-28 | 2011-09-28 | Dehumidifying and dust-removing method |
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