CN1522789A - Gas enriching apparatus and air feeding apparatus equipped therewith - Google Patents

Gas enriching apparatus and air feeding apparatus equipped therewith Download PDF

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Publication number
CN1522789A
CN1522789A CNA031570577A CN03157057A CN1522789A CN 1522789 A CN1522789 A CN 1522789A CN A031570577 A CNA031570577 A CN A031570577A CN 03157057 A CN03157057 A CN 03157057A CN 1522789 A CN1522789 A CN 1522789A
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China
Prior art keywords
gas
differential pressure
enriching
pressure generating
gas enriching
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CNA031570577A
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Chinese (zh)
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CN1248769C (en
Inventor
���dz�
浅田德哉
荒岛博
西原义和
中村康裕
后藤英二
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN1522789A publication Critical patent/CN1522789A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

An apparatus for enriching gas, and a blower using the same are provided to prevent inferior starting or operation of a differential pressure generating element when a low voltage is inputted. A gas enriching unit(2) enriches gas. A differential pressure generating element, decompression pump(3) generates a differential pressure to the gas enriching unit. A passage opening and closing element(8) reduces a working load of the differential pressure generating element when the passage opening and closing element is opened. A ventilation duct(4) passes first gas through the gas enriching unit for sending gas-enriched second gas. A voltage detector(16) detects a voltage inputted to the differential pressure generating element. The passage opening and closing element is controlled according to the inputted voltage.

Description

The air-supply arrangement of gas enriching device and this device of use
Technical field
The present invention relates to a kind of improve in the air after the concentration of setting gas and gas supplied enriching devices and use the air-supply arrangement of this device.
Background technology
All the time, the oxygen enrichment device of using gases enrichment mechanism and nitrogen enriching devices etc. improve with respect to other gases known to the device of specific gas concentration has been.Therapeutic medical oxygen enrichment device is for example arranged, provide equipment such as the air conditioner of rich oxygen containing air or air cleaner to the space of conditioned air.Wherein, open in the flat 5-113227 communique the spy and disclose air conditioner with oxygen enrichment function.
This air conditioner is made of off-premises station and indoor set.
Have in the off-premises station and can make oxygen enrichment film that oxygen sees through and a side that makes this film decompression selectively, the logical simultaneously rich oxygen containing air that will cross this oxygen enrichment film utilizes and sends pipeline, is delivered to the drawdown pump of indoor set.Utilize the oxygen enrichment operation, the oxygen enrichment film divides more than half nitrogen to separate the duty pneumatolytic and oxygen is seen through.But, when utilizing the film of present practicability, be airborne moisture at least, can see through simultaneously with oxygen.That is: with respect to the air of the primary side of oxygen enrichment film, the primary side after seeing through this film, because nitrogen is separated, humidity relatively improves.As a result, with the air ratio of primary side, dew point raises, and sends in the pipeline above-mentioned, produces dew often.So when emitting in the indoor set of dew at air conditioner, dew drips indoor, may cause a kind of rainy uncomfortable sensation to the user.In order to prevent this point, in the prior embodiment, adopt following countermeasure.That is, sending in the pipeline of the air of the oxygen content enrichment of indoor set, cooler is set, the air of cooling oxygen content enrichment makes the moisture dewfall that contains, and simultaneously, also has separator, and prevention moisture disperses indoor.Such using gases sees through the gas enriching operation of sorbing materials such as film or PSA method, is not to only limit to oxygen, and in the primary side of separator, relative humidity must improve.Its result because the dew point of air improves, has the tendency of the dewfall of being easy to generate.
In the prior embodiment, the pipeline of sending in the primary side of oxygen enrichment film (for example exposes under at low temperatures the situation, sending pipeline is exposed in the outside atmosphere, and be to wait the low situation of ambient atmos temperature in the winter time), especially, freeze at the dew of sending pipeline inside, might become the oxygen content enrichment by pipeline air pass through resistance.Like this, when drawdown pump started, the load that is added on the drawdown pump increased, and in some cases, might produce and problem such as can not successfully start.
In addition, cut down output under the situation of input voltage low low-voltage of life structure feeding drawdown pump equal difference, during starting or the driving torque deficiency of the drawdown pump in the running than setting voltage.As a result, differential pressure generating mechanism might be able to not run well.
But,, electrical equipment is destroyed if the input voltage excess load of input drawdown pump then has excessive electric current to flow through drawdown pump.For fear of this point, might must be useful on the electrical equipment design of the superfluous super-high-current of antagonism.
Summary of the invention
The present invention is a purpose to address the above problem, and also can use simple structure even provide a kind of under the low situation of the input voltage that feeds differential pressure generating mechanism, makes differential pressure generating mechanism when starting or the gas enriching device of the stable operation in turning round.
The invention provides a kind of gas enriching device, it is characterized in that having at least: gas enriching mechanism; In above-mentioned gas enrichment mechanism, produce the differential pressure generating mechanism of differential pressure; When opening, reduce the passage opening/closing mechanism of the live load of above-mentioned differential pressure generating mechanism; Make first gas by above-mentioned gas enrichment mechanism and send the path of supplying gas of second gas behind gas enriching; And the voltage detection mechanism that detects the input voltage of above-mentioned differential pressure generating mechanism; According to above-mentioned input voltage, above-mentioned passage opening/closing mechanism is controlled.
Moreover, a kind of air-supply arrangement is provided, it is characterized in that having the delivery outlet that wind pushing mechanism and output are responsible for, the delivery outlet that this output is responsible for is configured to the gas behind gas enriching is supplied to the flow air by above-mentioned wind pushing mechanism driving.
Description of drawings
Fig. 1 is the structural representation of the aircondition of embodiments of the present invention 1;
Fig. 2 is the key diagram of the control method example of embodiments of the present invention 1;
Fig. 3 is the sequential chart of explanation embodiments of the present invention 1;
Fig. 4 is the enlarged drawing of major part of air conditioner of other examples of embodiments of the present invention 1;
Fig. 5 is the key diagram of the control method example of embodiments of the present invention 2;
Fig. 6 is the sequential chart of explanation embodiments of the present invention 2;
Fig. 7 is the schematic diagram of other control methods of embodiments of the present invention 2;
Fig. 8 is the structural representation of the diaphragm type decompressor of embodiments of the present invention 3;
Fig. 9 is the schematic diagram of the control method example of embodiments of the present invention 4;
Figure 10 is the sequential chart of explanation embodiments of the present invention 4;
Figure 11 is the schematic diagram of the control method example of embodiments of the present invention 5;
Figure 12 is the sequential chart of explanation embodiments of the present invention 5.
The specific embodiment
Gas enriching device of the present invention has at least: gas enriching mechanism; In gas enriching mechanism, produce the differential pressure generating mechanism of differential pressure; When opening, reduce the passage opening/closing mechanism of the live load in above-mentioned differential pressure generating mechanism; Make the path of supplying gas of first gas, second gas after enrichment by gas enriching device and conveying; And the voltage detection mechanism that detects the input voltage of differential pressure generating mechanism; According to input voltage, control passage opening/closing mechanism
In addition, above-mentioned voltage detection mechanism can detect the input voltage of gas enriching device, to replace detecting the input voltage of differential pressure generating mechanism.That is: can carry out above-mentioned control according to the supply voltage of the primary side that is supplied to this device.
The differential pressure generating mechanism that uses in the gas enriching device can be compression type, also can be the device of decompression type.Under the situation of the differential pressure generating mechanism that uses compression type, can use hollow line or the filling as the PSA method the gas separating mechanism of zeolite as gas enriching mechanism.On the other hand, under the situation of using decompression type differential pressure generating mechanism, can use gas separation membranes such as silicon system.
In either case, in when starting, and on-streamly also can carry out gas enriching for not only, all act in the differential pressure generating mechanism be useful on make first gas in gas enriching mechanism by and obtain the load of second gas behind gas enriching.As a result, under the situation that reduces input voltages such as supply voltage, the moment of torsion of differential pressure generating mechanism reduces, thereby running is stopped.In order to reduce to be added in the load in the differential pressure generating mechanism, according to input voltage, open passage opening/closing mechanism, and avoid stopping of useless differential pressure generating mechanism.Like this, can prevent in the electric loop of the driving power of supplying with differential pressure generating mechanism, to produce problem such as super-high-current.In addition, passage opening/closing mechanism can carry out the switching of stream as the electromagnetism two way selected valve, also can change flow continuously as the electric flow vario valve.Two way selected valve can also be made up, switch stream with three-way diverter valve.In a word, gas communication makes the duty ratio that acts in the differential pressure generating mechanism pass through little the getting final product of wanting of gas enriching mechanism.Like this, can reduce to act on live load in the differential pressure generating mechanism.And then, can also make when the differential pressure generating mechanism opening, the suction side stream of above-mentioned differential pressure generating mechanism and the stream of outlet side are communicated with.Load in the time of like this, also can reducing the differential pressure generating mechanical operation.Moreover the 3rd gas also can be identical with first gas.For example, in the differential pressure generating mechanism that uses the decompression type, in gas enriching mechanism, under the situation of using gases diffusion barrier, see through first gas of gas separation membrane, be atmosphere by gas separation membrane.So the suction side in decompression type differential pressure generating mechanism can be provided with the passage opening/closing mechanism arranged side by side with this gas separation membrane.If suck atmosphere from the opposition side with the decompression type differential pressure generating mechanism connection of this passage opening/closing mechanism, then the 3rd gas is the atmosphere identical with first gas.
Moreover the suction inlet of the 3rd gas that sucks when the passage opening/closing mechanism opening can be arranged on outside or inner any one of the framework of gas enriching device.Under gas enriching device configuration situation without, be preferably to be configured in and do not head on wind and rain, can not directly form the position of water droplet.In addition, be preferably and also should avoid and to import a large amount of unsuitable gas (NO for example that suck when indoor x, SO x, carbon dioxide etc.) place etc.In addition, in gas enriching device of the present invention, the switching time of passage opening/closing mechanism, can change according to the voltage that voltage detection mechanism detects.
When starting, if input voltage is low, then starting torque diminishes, and therefore, owing to can make the differential pressure generating mechanical operation to a certain extent, so close passage opening/closing mechanism, carries out the gas enriching running.Input voltage is opened passage opening/closing mechanism till input voltage is replied than under the low situation of setting value in the differential pressure generating mechanical operation.And then, do not reply in setting-up time if be preferably input voltage, then can not carry out the gas enriching running.In addition, as passage opening/closing mechanism, can use traffic changeable type switching mechanism, according to the degree that input voltage reduces, adjust the degree of opening of passage opening/closing mechanism.Like this, can do one's utmost not hinder the gas enriching running, and useless the stopping that can preventing differential pressure generating mechanism.
Moreover the temperature testing organization that can also have the temperature that detects first gas according to the temperature that detects, can change the switching time or the degree of opening of passage opening/closing mechanism.In addition, gas enriching device of the present invention has at least: gas enriching mechanism; In gas enriching mechanism, produce the diaphragm type differential pressure generating mechanism of differential pressure; Heating has the heating arrangements of the diaphragm of differential pressure generating mechanism; Make the path of supplying gas of first gas, second gas behind gas enriching by gas enriching mechanism and conveying; And the voltage detection mechanism that detects the input voltage that feeds differential pressure generating mechanism; According to input voltage, particularly when starting, heating arrangements is controlled.And diaphragm itself can be made by the exothermic material of electric conductivity, makes its heating can for diaphragm energising itself.Usually, diaphragm is made by metal or elastomer, resin with flexibility.Therefore, when placing differential pressure generating mechanism at low temperatures for a long time, the flexibility of diaphragm reduces.When under this situation, during starting differential pressure generating mechanism, the load during starting increases, and may produce poor starting.Therefore, be preferably when starting, heat to diaphragm in advance and improve its flexibility.Moreover, time of heating and add heat, with above-mentioned same, can be according to the temperature of first gas, or the framework temperature of differential pressure generating mechanism, more correctly, change according to the temperature of diaphragm.Certainly, when temperature is low, warm-up time and add heat and should increase.Below, with reference to accompanying drawing embodiments of the present invention are described.Moreover accompanying drawing is a schematic diagram, and each position is not with correct size Expressing.In the present embodiment, describe having the situation that selectively the gas enriching device of the functions of physical supply of the concentration of raising oxygen is equipped on the aircondition from atmosphere.In addition, air-supply arrangement of the present invention has fan etc., is blown in the space of setting.Wherein, comprise home-use air conditioner, also be useful on situations such as air conditioner for vehicles, enbloc air conditioner, air cleaner, and therapeutic medical oxygen enrichment device, the oxygen enrichment device that portable oxygen enriching devices and burning machine are used etc.In any machine, the present invention has same effect.
(embodiment 1)
At first, utilize Fig. 1 that embodiment 1 is described.
As shown in Figure 1, aircondition is made of indoor set 11 and off-premises station 1.They connect with connecting line (not illustrating among the figure), make the cold media gas circulation.In off-premises station 1, have compressor 20, heat exchanger 22 and fan 21, simultaneously, also be provided with oxygen enrichment device 30.Oxygen enrichment device 30 has: oxygen enrichment membrane element 2 (gas enriching mechanism), drawdown pump 3 (differential pressure generating mechanism), the path 4 of supplying gas that can connect oxygen enrichment membrane element 2 and drawdown pump 3 with ventilating, be arranged to the atmosphere ingress pipe 5 that comes out from path 4 branches of supplying gas, and the output that the air exported from the drawdown pump that the oxygen containing air of richness is fed indoor set 11 is passed through is responsible for 6.
Have, be preferably the primary side (atmospheric side) at oxygen enrichment membrane element 2, configuration fan (not illustrating among the figure) is used to remove the air that is rich in nitrogen that is accompanied by the oxygen enrichment running and is detained.So fan can carry out work with the running interlock of oxygen enrichment device.In addition, also oxygen enrichment membrane element 2 can be configured in the air-supply loop of off-premises station, utilize fan 21 that the air of the nitrogen of the primary side that is rich in oxygen enrichment membrane element 2 is flowed.In addition, atmosphere ingress pipe 5 has passage opening/closing mechanisms 8 such as electromagnetism two way selected valve.Pressure reducers such as capillary 9 in series are arranged in the atmosphere ingress pipe 5 with passage opening/closing mechanism 8.This pressure reducer 9 is carrying out adjusting the effect by the air mass flow of passage opening/closing mechanism 8.The switching of passage opening/closing mechanism 8 is controlled by controlling organization 12.In addition, controlling organization 12 has the ambient atmos temperature sensor 10 of environment temperature (the so-called ambient atmos temperature) T that detects off-premises station and detects the input voltage testing agency 16 of the input voltage V of drawdown pump.
In addition, indoor set 11 has by output is responsible for 6, in the framework of indoor set 11 inner or its near, the delivery outlet 7 that the oxygen containing air of richness is blown out.Under the situation of the air-supply loop configuration in delivery outlet 7 faced chamber in the machine frame body, rich oxygen containing air mixes with the wind that work blew out by fan 13, and being delivered to from blow-off outlet 14 will be by the space of air conditioning.Here, the formation of the freeze cycle of aircondition and work thereof, since irrelevant with the present invention, its detailed description omitted.
Secondly, utilize Fig. 1-Fig. 3 that control of the present invention in the aircondition of said structure is described.
As shown in Figure 1, when the running of indication oxygen enrichment, drawdown pump 3 runnings produce differential pressure before and after the film of oxygen enrichment membrane element 2.So gas flows towards oxygen enrichment membrane element 2.At this moment, shown in arrow 15A, the atmosphere of the film primary side of oxygen enrichment membrane element 2 (first gas) sees through oxygen enrichment membrane element 2, becomes rich oxygen containing air (second gas).Then, rich oxygen containing air by the path 4 of supplying gas, is sucked in the drawdown pump 3, is responsible for 6 by output again, imports indoor set, sends from delivery outlet 7.
Fig. 2 is in drawdown pump 3 running, for the schematic diagram of the control method of the passage opening/closing mechanism of input voltage.Fig. 3 is in the drawdown pump running, is carried out the sequential chart of passage opening/closing mechanism controls by input voltage.
Under the state that drawdown pump 3 stops, passage opening/closing mechanism 8 is in closed condition.When 3 startings of indication oxygen enrichment device running drawdown pump, controlling organization 12 detects drawdown pump input voltage V by input voltage testing agency 16.Under the input voltage V that at first the detects situation higher than setting voltage V4, passage opening/closing mechanism 8 is in closed condition, carries out the running (A dotted state) of common oxygen enrichment.On the other hand, reducing input voltage V, reaching under the situation of the B dotted state lower, estimating the starting torque deficiency of drawdown pump 3, opening passage opening/closing mechanism 8 than setting voltage V4.
Like this, shown in the arrow 15B of Fig. 1, ambient atmos directly imports by atmosphere ingress pipe 5, and the running of drawdown pump 3 becomes the state of light load (state of decompression within reason).At this moment, by the situation of atmosphere ingress pipe 5, than atmosphere is little by the situation circulating resistance of oxygen enrichment membrane element 2.As a result, if make passage opening/closing mechanism 8 be in the state of opening, then ambient atmos is from oxygen enrichment membrane element 2 one sides, but preferentially imports from atmosphere ingress pipe one side 5, and the load of drawdown pump reduces.
So V raises once more when input voltage, when becoming, make passage opening/closing mechanism be in closing state than the high D dotted state of V5, carry out the running of common oxygen enrichment., be under the state of ordering herein, do not close the operation of passage opening/closing mechanism as the C of the value between V4 and the V5 at input voltage V.Like this, when input voltage V changes near the V4 value, can prevent to control passage opening/closing mechanism continually and make control itself unstable.The time passage opening/closing mechanism is under the state of opening in input voltage height, running, as benchmark, when the A point is reduced to the B point, utilizes V4 as threshold value at input voltage with the input voltage V4 that do not need to reduce the drawdown pump operating load.On the contrary, rise to from the C point under the situation that D orders at input voltage, with than the high a little V5 of V4 as threshold value.
As above like this, even cause under the unusual low situation of input voltage, can proceed not cause the running of driving torque deficiency by opening passage opening/closing mechanism at power supply etc.Therefore, can prevent the fault that raises and caused because of the bad abnormal temperature that causes that turns round.
Certainly, if input voltage V is lower than predefined minimum input voltage V0, air pump inoperative then reduces pressure.So, owing to be in low-voltage state, can be expressed as the mistake that can not turn round and so on.
Have again, the variation of input voltage in the drawdown pump running has been described.And then according to the input voltage that the drawdown pump prestart is detected, the usefulness when threshold value of variable V4, V5, V0 supplies starting is carried out control same as described above.And for example shown in Figure 4, be situated between and insert bypass with opening and closing device 17, the depressurised side 3A and the pressure side 3B bypass pipe 18 along separate routes that make drawdown pump 3 are set, also can obtain and above-mentioned same effect.
Have, use in aircondition etc. under the situation of said structure, the temperature sensor that its body itself can sharedly have originally detects the temperature of ambient atmos.In addition, controlling organization 12 also can assembled configuration in the controlling organization of the off-premises station of aircondition.
(embodiment 2)
Below, according to Fig. 5～7 embodiment 2 is described.When beginning the running of oxygen enrichment, the input voltage V when controlling organization 12 detects starting, according to input voltage V, the passage opening/closing mechanism 8 when setting the drawdown pump starting opens the control time.
In Fig. 5, mold shaft is represented the input voltage of drawdown pump, and more to the right, the input voltage of detection is high more.In addition, the longitudinal axis is represented the opening operation time of passage opening/closing mechanism, and more upwards, the operating time is long more.
Transverse axis is represented the time among Fig. 6, and the input voltage when being set at the drawdown pump starting is low more, and the time of opening of passage opening/closing mechanism is long more.
In two figure, for example at input voltage V bigger than V2, under the situation in the zone below the V1, the time of opening of passage opening/closing mechanism is t1 again.
Input voltage is low more, and then opening passage opening/closing mechanism, to carry out time of light load running long more, and this can impel the temperature of drawdown pump to raise, and reduces the resistance to sliding of the lubriation material of drawdown pump rotating part and slipper, and drawdown pump is started reposefully.
And then, according to the environment temperature and the framework temperature of drawdown pump, the opening operation time t in the time of can revising the starting of above-mentioned passage opening/closing mechanism.Fig. 7 represents opening operation time t (=t1, t2, the t3 for above-mentioned such decision ...), the notion of the correction that the ambient temperature T that carries out being detected by ambient atmos temperature sensor 10 carries out.
For example, V is bigger than V2 at input voltage, and t4 when the ambient atmos temperature T is bigger than T2, when T1 is following, is appended again in the zone below V1 on t1 again, and the time of opening of flow path switching mechanism is revised.
(embodiment 3)
Secondly, embodiment 3 is described.At first, utilize Fig. 8 that the diaphragm type decompression pump structure of present embodiment is described.Diaphragm type drawdown pump 31 has discharge chambe 48A in its framework, suction chamber 48B and output chamber 48C.Discharge chambe 48A is roughly cylindrical shape, by remain on the diaphragm 42 made with the elastomer of deflection around form.Fixing piston 46 at the central portion of diaphragm 42.Move up and down by piston 46, diaphragm 42 is out of shape up and down.Like this, make the volume-variation of discharge chambe 48A.Discharge chambe 48A and suction chamber 48B separate by the inlet valve 44 that is arranged among the discharge chambe 48A, make Compressed Gas not flow backward to suction chamber 48B from discharge chambe 48A.In addition, discharge chambe 48A and output chamber 48C are separated by the air bleeding valve 41 that is installed among the output chamber 48C, make Compressed Gas not flow backward to discharge chambe 48A from output chamber 48C.
Next illustrates the decompression and the bleeding of diaphragm type drawdown pump.By the work of the driving mechanism (not illustrating among the figure) that is connected with piston 46, make piston 46 when upper dead center position X moves to lower dead point position Y, gas, is sucked among the discharge chambe 48A via suction chamber 48B from suction inlet 43.Secondly, rise to upper dead center position X by making diaphragm 42 from lower dead point position Y, the volume of discharge chambe 48A is reduced, the pressure in the volume raises.At this moment, air bleeding valve 41 is upwards opened under its pressure differential effect, and gases at high pressure are discharged from exhaust outlet 40 through output chamber 48C.
In this structure, elastomer that flexibility is low when adopting low temperature mostly or metallic plate are as diaphragm 42, inlet valve 44, air bleeding valve 41.In addition, be subjected to the influence of environment temperature, be coated in rotating part and the sliding part lubricant viscosity on grading and increase, starting reactance is significantly increased.That is: when after the long-time exposure at low temperatures of drawdown pump, starting, be necessary that enough operation torques overcome working resistance.As a result, under the situation that the input voltage of drawdown pump is low when starting, may cause poor starting.
Malfunction in order to prevent to start is preferably heating arrangements 45 is set near diaphragm 42.So, heat during by starting, can improve the flexibility of diaphragm 42 or inlet valve 44, air bleeding valve 41.And being preferably grades to sliding part heats.
In addition, as the material of diaphragm 42, can adopt the electric conductivity exothermic material, for example copper compound or aluminium compound etc. also can utilize the environment temperature of diaphragm 42, make diaphragm 42 energisings.Like this, can improve the flexibility of diaphragm 42.
(embodiment 4)
Below, utilize Fig. 9 and Figure 10 that embodiments of the present invention 4 are described.Fig. 9 and Figure 10 are the control method of expression according to the control heating arrangements 45 of the input voltage V in the drawdown pump running, and sequential chart.For the operation of the heating arrangements of input voltage, identical with the operation shown in the above-mentioned embodiment 1 for the passage opening/closing mechanism of input voltage.Getting threshold value respectively is V9, V10, the on/off of control heating arrangements.
Like this, even the input voltage when starting because of power issue can make heating arrangements work than under the low situation of setting value before starting.As a result, the starting load of drawdown pump can be reduced, the running of driving torque deficiency can be do not made.
(embodiment 5)
Utilize Figure 11 and Figure 12 that embodiments of the present invention 5 are described.
Figure 11 is the schematic diagram of the control method example of present embodiment 5, the sequential chart of the situation when Figure 12 carries out work for expression with the control method of embodiment 5.When the running of oxygen enrichment began, the input voltage V when controlling organization 12 detects starting according to input voltage V, used S heat time heating time of heating arrangements 45 during the starting of decision drawdown pump.
Control itself is that S heat time heating time that is replaced as with heating arrangements 45 carries out with the opening operation time t of the passage opening/closing mechanism of embodiment 2.At this moment, can suitably set V6, V7 ..., and S1, S2 ... parameter, describe in detail to omit.
In the present embodiment, can make the heating amount for certain, as parameter change S heat time heating time.Certainly, change that to add heat also passable, and, identical with embodiment 2, can be with the framework temperature of the temperature of ambient atmos or the mechanism of decompressor as parameter, utilize temperature to revise above-mentioned heat time heating time of S.In addition, this control is not to carry out when only limiting to the drawdown pump starting.For example, when drawdown pump stops, also can detect and be applied to the roughly the same voltage (supply voltage etc.) of voltage on the drawdown pump, make heating arrangements work thus.
In addition, also can allow the control object be conduction time, replace the working time of heating arrangements diaphragm.And the control object can be not only an element of time, also can be the heat that adds that feeds heating arrangements.
In addition, can be without the input voltage of drawdown pump, and be used as temperature around the drawdown pump of the main cause that the drawdown pump working resistance increases, the temperature (for example temperature T of ambient atmos) that maybe can calculate it replaces and controls.
Have, use in aircondition etc. under the situation of said structure, its body itself can shared original temperature sensor, detects the temperature of ambient atmos.
In addition, controlling organization 12 also can assembled configuration in the controlling organization of the off-premises station of aircondition.
Utilize the field on the industry
The invention provides a kind of input voltage drop of causing of variation that can prevent by input voltage When low, the gas enriching device that the starting in the starting of differential pressure generating mechanism and the running is bad etc. and sending Wind apparatus.

Claims (12)

1. a gas enriching device is characterized in that having at least: gas enriching mechanism; In described gas enriching mechanism, produce the differential pressure generating mechanism of differential pressure; When opening, reduce the passage opening/closing mechanism of the live load of described differential pressure generating mechanism; Make first gas by described gas enriching mechanism and send the path of supplying gas of second gas behind gas enriching; And the voltage detection mechanism that detects the input voltage of described differential pressure generating mechanism; According to described input voltage, described passage opening/closing mechanism is controlled.
2. a gas enriching device is characterized in that having at least: gas enriching mechanism; In described gas enriching mechanism, produce the differential pressure generating mechanism of differential pressure; When opening, reduce the passage opening/closing mechanism of the live load of described differential pressure generating mechanism; Make first gas by described gas enriching mechanism and send the path of supplying gas of second gas behind gas enriching; And the voltage detection mechanism that detects the input voltage of gas enriching device; According to described input voltage, described passage opening/closing mechanism is controlled.
3. as each described gas enriching device in claim 1 or 2, it is characterized in that, described differential pressure generating mechanism is the mechanism of decompressor that makes the side decompression of described gas enriching mechanism and suck described first gas, by described passage opening/closing mechanism, the 3rd gas is supplied to the suction side stream of the described mechanism of decompressor.
4. as each described gas enriching device in claim 1 or 2, it is characterized in that, described differential pressure generating mechanism pressurizes for a side of giving described gas enriching mechanism and pushes the pressing mechanism of first gas, and described passage opening/closing mechanism and described gas enriching mechanism dispose side by side.
5. as each described gas enriching device in claim 1 or 2, it is characterized in that described passage opening/closing mechanism makes the suction side stream and the outlet side stream of described differential pressure generating mechanism be communicated with when opening.
6. as each described gas enriching device in claim 1 or 2, it is characterized in that,, the time of opening passage opening/closing mechanism is controlled according to described input voltage.
7. gas enriching device as claimed in claim 6 is characterized in that, has the temperature testing organization of the temperature that detects described first gas, according to the temperature of described first gas, controls thereby revise the time of opening passage opening/closing mechanism.
8. a gas enriching device is characterized in that having at least: gas enriching mechanism; In described gas enriching mechanism, produce the diaphragm type differential pressure generating mechanism of differential pressure; Heat the heating arrangements of the diaphragm that described differential pressure generating mechanism had; Make first gas by described gas enriching mechanism and send the path of sending of second gas behind gas enriching; And the voltage detection mechanism that detects the input voltage of described differential pressure generating mechanism; According to described input voltage, described heating arrangements is controlled.
9. a gas enriching device is characterized in that having at least: gas enriching mechanism; In described gas enriching mechanism, produce the diaphragm type differential pressure generating mechanism of differential pressure; Heat the heating arrangements of the diaphragm that described differential pressure generating mechanism had; Make first gas by described gas enriching mechanism and send the path of sending of second gas behind gas enriching; And the voltage detection mechanism that detects the input voltage of described gas enriching device; According to described input voltage, described heating arrangements is controlled.
10. as each described gas enriching device in claim 8 or 9, it is characterized in that,, the heat that adds of described heating arrangements is controlled according to described input voltage.
11. gas enriching device as claimed in claim 10 is characterized in that, has the temperature testing organization of the temperature that detects described first gas, according to the temperature of described first gas, thereby the heat that adds of revising described heating arrangements is controlled.
12. an air-supply arrangement is characterized in that, has the delivery outlet that wind pushing mechanism and output are responsible for, the delivery outlet that this output is responsible for is configured to the gas behind gas enriching is supplied to the flow air by described wind pushing mechanism driving.
CNB031570577A 2003-02-17 2003-09-12 Gas enriching apparatus and air feeding apparatus equipped therewith Expired - Fee Related CN1248769C (en)

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JP2003037884 2003-02-17
JP2003037884 2003-02-17

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0829215B2 (en) * 1987-03-04 1996-03-27 鈴木総業株式会社 Air conditioner
KR100253124B1 (en) * 1993-04-13 2000-04-15 마쓰바 구니유키 Air cleaning apparatus and air cleaning method
JPH07124434A (en) * 1993-11-05 1995-05-16 Nippondenso Co Ltd Device for forming air rich in oxygen
JP2002039569A (en) * 2000-07-24 2002-02-06 Matsushita Electric Ind Co Ltd Air conditioner

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KR100922672B1 (en) 2009-10-19
CN1248769C (en) 2006-04-05

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