CN100455931C - Method for controlling air quantity in ventilation system - Google Patents
Method for controlling air quantity in ventilation system Download PDFInfo
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- CN100455931C CN100455931C CNB2004100201435A CN200410020143A CN100455931C CN 100455931 C CN100455931 C CN 100455931C CN B2004100201435 A CNB2004100201435 A CN B2004100201435A CN 200410020143 A CN200410020143 A CN 200410020143A CN 100455931 C CN100455931 C CN 100455931C
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Abstract
The present invention relates to a method for controlling air quantity in a ventilation system, which comprises a phase for reading VOC initial value (V0) and current VOC concentration value (V< New >), a phase for working out VOC concentration relative value (V< New >-V< 0 >) and VOC concentration change quantity (V< New >-V< Old >) according to the VOC initial value (V0) and the current VOC concentration value (V< New >), a phase for comparing the VOC concentration relative value (V< New >-V< 0 >) with a reference level set according to a plurality of levels to judge the levels of VOC concentration, a phase for comparing the VOC concentration change quantity (V< New >-V< Old >) with a reference level set according to a plurality of levels to judge the levels of VOC concentration change quantity, and a phase for controlling the driving strength of an air supplying fan and an exhaust fan according to the judged levels of the VOC concentration and the VOC concentration change quantity. The present invention can judge the pollution degree of indoor air according to the change of the VOC concentration relative value (V< New >-V< 0 >) and the VOC concentration change quantity, and thus, the optimum air quantity of a ventilation system is controlled in order to increase air purifying efficiency to the utmost extent.
Description
Technical field
The present invention relates to a kind of air quantity control method of ventilating system.
Background technology
Air-conditioner normally by allowing the inner refrigerant concurrent looks that circulates change, utilizes the heat exchanging process between refrigerant and the surrounding air, to the indoor plant equipment of freezing, heating.Air-conditioner is a kind of refrigeration, heating combined equipment, can reduce indoor air themperature in summer, uses and be used as warm-air drier winter, improves indoor temperature.
The common and ventilating system linkage work of air-conditioner with above-mentioned functions.Ventilating system is arranged on being provided with in the mouth of building ceiling usually, discharges after indoor air is sucked, and after the outdoor air suction, is supplied to indoor.
Because above-mentioned ventilating system does not occupy indoor space, so its utilization rate is the trend that rises gradually with air-conditioner.
Below, with reference to accompanying drawing, existing air conditioner unit is described.
As shown in Figure 1, air conditioner unit is made up of indoor section and outdoor section usually.When air-conditioner 10 carried out refrigeration work, ventilating system drove air supply fan outdoor air is sucked, and allowed outdoor air lower the temperature by total-heat exchanger 20, allowed it to approach indoor temperature by in gas supply part 22 flowed into chamber.
When air-conditioner 10 heated operation, the opposite peripheral passage of loop direction by with refrigeration work the time allowed room air flow through exhaust portion 24 and total-heat exchanger 20, is discharged to outdoor.
With the ventilating system with air-cleaning function is the center, and the structure of above-mentioned air conditioner unit is carried out following explanation:
As shown in Figure 2, ventilating system comprises control part 31, damping position-detection sensor 36, VOC sensor 37, exhaust fan drive circuit 39, air purifying filter core (figure slightly), air supply fan drive circuit 38, damping piece drive circuit 40.Control part 31 control whole systems, and detect VOC concentration, according to the operation of above-mentioned concentration control air supply fan and the operation of suction fan, purify the air of a room.Damping position-detection sensor 36 detects the position of damping piece, and damping piece is used to regulate air quantity.VOC sensor 37 is used to detect VOC (VOC) concentration of room air.Exhaust fan drive circuit 39 drives exhaust fan in order to get rid of indoor contaminated air.Air purifying filter core is used for the foreign matter of filtered air.Air supply fan drive circuit 38 drives air supply fan, being supplied to indoor through the air purifying filter core cleaned air passes.Damping piece drive circuit 40 is according to the air quantity of control part 31 decisions, by the testing result driving damping piece of damping position-detection sensor 36.
Here, number in the figure 34 is the remote controller control part, is used for the work by user's selection control ventilating system, and is used to import the corresponding command.35 is air conditioner room unit.
Indoor contaminated air or air entrapment are comprising lot of V OC (VOC).The air of this enclosure space can cause illnesss such as respiratory tract infection, sensitive disease, headache, and is very harmful to health.
Therefore, for the enclosure space that personnel such as office or vehicle assemble, should and supply fresh clean air the air cleaning of polluting.
At this moment the function of Shi Yonging is, the air-cleaning function that utilizes ventilating system as shown in Figure 1, 2.
When the user carried out air-cleaning function, the control by above-mentioned control part 31 at first drove exhaust fan, and the air of indoor pollution is sucked by exhaust portion 24.
By exhaust portion 24 inhaled airs, the air purifying filter core of can flowing through in total-heat exchanger 20 inside (figure is slightly).At this moment, pollutant such as dust in air or organic compound is filtered by above-mentioned air purifying filter core.
Next, under the control of above-mentioned control part 31, drive air supply fan,, be supplied to indoor by gas supply part 22 the cleaned air of the above-mentioned air purifying filter core of flowing through.
Below, with reference to Fig. 3,, describe having the ventilating system air quantity control method of above-mentioned air-cleaning function.
When the user sets the air-cleaning function of ventilating system for automatic control mode, at first can carry out the stabilisation operation of VOC sensor 37, deny to surpass setting-up time (common 3 minutes) to the stabilizing take water of above-mentioned VOC sensor 37, judge (S1).
The above results (S1) if cross the stabilizing take of above-mentioned VOC sensor 37, is then read in the VOC value (S2) that has detected by VCO sensor 37.
At this moment, if above-mentioned VOC detected value be more than the 3V 1., then be judged as high concentration, allow the ventilating system of carrying out the air cleaning operation with big air quantity work (S3, S4).
If the above-mentioned VOC of stating detected value be below the above 3V of 2V 2., then be judged as middle concentration, allow the ventilating system of carrying out the air cleaning operation with medium air quantity work (S5, S6).If above-mentioned VOC detected value be below the 2V 3., then be judged as low concentration, allow the ventilating system of carrying out the air cleaning operation with little air quantity work (S7).
As shown in table 1, existing ventilating system detects the VOC concentration by VOC sensor 37, and by this concentration the air quantity of fan is controlled, and provides clean air to indoor.
[table 1]
| VOC concentration | Air quantity |
| 1. more than the 3V | Big air quantity |
| 2. below the above 3V of 2V | |
| 3. below the 2V | Little air quantity |
But there are the following problems for existing ventilating system:
Existing ventilating system is pressed the absolute value of VOC concentration, and the air quantity of air supply fan and suction fan is controlled with 3 grades (big air quantity, medium air quantity, little air quantity).Because only rely on the absolute value control air quantity of VOC concentration, the relative detected value that can not corresponding effectively VOC concentration and the rapid variation of VOC concentration.
That is, the reason because of the rapid increase of indoor smoking or indoor occupant etc. sharply rises indoor VOC concentration, under the situation that room air is polluted fast, when only relying on the absolute value control air quantity of VOC concentration, is difficult to keep indoor air cleaning degree.
Summary of the invention
In order to overcome the above-mentioned shortcoming of the air quantity control method existence that has ventilating system now, the invention provides a kind of air quantity control method of ventilating system, the relative determination value of the VOC concentration during corresponding to air cleaning and the rapid variation of VOC concentration, the air quantity of control fan improves air cleaning efficient.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of air quantity control method of ventilating system is characterized in that, this air quantity control method comprises following several stages: read in VOC initial value V
OWith current VOC concentration value V
NewStage; Utilize VOC initial value V
OWith current VOC concentration value V
New, calculate VOC concentration relative value V
New-V
OWith VOC change in concentration amount V
New-V
OldStage, V
OldValue is V
OThe previous sampled value of value; Described VOC concentration relative value V
New-V
OCompare with the benchmark rank by several grade settings, judge VOC other stage of concentration level; Described VOC change in concentration amount V
New-V
OldCompare with the benchmark rank by several grade settings, judge VOC change in concentration other stage of magnitude; VOC concentration rank and VOC change in concentration magnitude according to described judgement are other, to the driving intensity of air supply fan and exhaust fan, the stage of controlling.
The air quantity control method of aforesaid ventilating system is wherein described VOC concentration relative value V
New-V
OBe divided into A＞B＞C＞D benchmark rank, and VOC change in concentration amount V
New-V
OldBe divided into a＞b＞c＞d＞e benchmark rank.
The air quantity control method of aforesaid ventilating system, wherein this air quantity control method also comprises when being selected the air cleaning operation by the user, in order to control the driving intensity of air supply fan and exhaust fan, described VOC concentration relative value V
New-V
OWith benchmark rank A, B, the stage that C, D compare; If described comparative result is current VOC concentration relative value V
New-V
OBigger than A, then VOC change in concentration amount V
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " extra-heavy wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " extra-heavy wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than e, d is little, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, then allow air supply fan and exhaust fan form by the stage that " apoplexy " drives.
If the air quantity control method of aforesaid ventilating system is wherein current VOC concentration relative value V
New-V
OBe bigger and littler, then VOC change in concentration amount V than A than B
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " extra-heavy wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind ".
If the air quantity control method of aforesaid ventilating system is wherein by current VOC concentration relative value V
New-V
OBe bigger, littler, then VOC change in concentration amount V than B than C
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, then allow air supply fan and exhaust fan form by the stage that " weak wind " drives.
If the air quantity control method of aforesaid ventilating system is wherein by current VOC concentration relative value V
New-V
OBe bigger, littler, then VOC change in concentration amount V than C than D
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " high wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " weak wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, then allow air supply fan and the exhaust fan be the ventilating system control method of feature by the stage that " faint wind " drives.
If the air quantity control method of aforesaid ventilating system is wherein by current VOC concentration relative value V
New-V
OBe littler, then VOC change in concentration amount V than D
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " apoplexy "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " weak wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " weak wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " faint wind "; If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, the stage that then allows air supply fan and exhaust fan drive by " faint wind ".
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the common air-conditioning apparatus overall structure schematic diagram of being made up of air-conditioner and ventilating system.
Fig. 2 is the schematic diagram that concerns of ventilating system and other each parts of air conditioner unit.
Air quantity control method flow chart when Fig. 3 purifies air for existing ventilating system.
Fig. 4, Fig. 5 a are ventilating system of the present invention air quantity control method flow chart when purifying air to Fig. 5 e.
The number in the figure explanation:
31: control part 34: remote controller
35: indoor set 36: the damping position-detection sensor
37:VOC sensor 38: air supply fan drive circuit
39: exhaust fan drive circuit 40: the damping piece drive circuit
The specific embodiment
Among the present invention, VOC sensor 37 adopts the sensor of the relative value that can detect VOC concentration.
When the present invention carries out air cleaning,, use the VOC concentration relative value (V that detects by VOC sensor 37 simultaneously as the reference data of ventilating system air quantity control
New-V
O) and VOC change in concentration amount dV (V
New-V
Old).(annotate: V
OldBe the later value of VOC sensor sample several, Cai Yang value is V at last
OValue, V
OldValue is V
OThe previous sampled value of sampling before the value.)
The present invention utilizes data as shown in table 2, the VOC concentration that a variety of causes causes such as sharply increases corresponding to air entrapment and indoor occupant, adjusts air quantity.
The membership function of table 2 is represented VOC concentration relative value (V
New-V
O) and VOC change in concentration amount dV (V
New-V
Old) and air quantity between relation.
The present invention presses the fuzzy rule (fuzzy rule) of table 2, judges whether indoor pollution degree and dustiness sharply rise, and according to above-mentioned judgement, the control air quantity.
[table 2]
Utilize fuzzy membership functions, according to the indoor VOC concentration relative value (V that detects
New-V
O) and VOC change in concentration amount (V
New-V
Old), the method that the air quantity of ventilating system is controlled is as follows.
As shown in Figure 4, the user when selecting the automatic job of air-cleaning function, at first, to whether surpassing the stabilizing take (normally 3 minutes) of VOC sensor 37, judges (S10) in ventilating system.
Above-mentioned judged result (S11) if surpass the stabilizing take of VOC sensor 37, is then read in the initial value V of VOC sensor 37 simultaneously
O(S11).
Read in current indoor VOC concentration V through behind the certain hour again
New(S12 S13), utilizes the VOC concentration initial value V that reads in
OWith current VOC concentration V
New, calculate VOC concentration relative value (V
New-V
O) and VOC change in concentration amount (V
New-V
Old) (S14).
Obtain VOC concentration relative value (V by the way
New-V
O) and VOC change in concentration amount (V
New-V
Old) after, carry out the air quantity of ventilating system and control the stage.
Among the present invention, for the ease of relatively, above-mentioned VOC concentration relative value (V
New-V
O) be divided into A＞B＞benchmark ranks such as C＞D, and VOC change in concentration amount (V
New-V
Old) be divided into a＞b＞c＞d＞benchmark ranks such as e.
Such as VOC concentration relative value (V
New-V
O) be divided into+0.5,0 ,-0.5 ,-1.0 V such as rank such as benchmark such as grade, and VOC change in concentration amount (V
New-V
Old) be divided into+0.2 ,+0.1,0 ,-0.1 ,-0.2 V such as rank such as benchmark such as grade.Certainly, also can segment above-mentioned other size of each reference level more, and control, ventilate rapidly and accurately with this.
At first, above-mentioned (S14) is in the stage, the current VOC concentration relative value (V that draws
New-V
O) and benchmark rank+0.5V, 0V ,-0.5V ,-1.0V compares.
If above-mentioned comparative result is current VOC concentration relative value (V
New-V
O) be+0.5V above (S15), then VOC change in concentration amount (V
New-V
Old) and benchmark rank+0.2V ,+0.1V, 0V ,-0.1V ,-0.2V compares, and controls the air quantity of ventilating system with this.
Current VOC concentration relative value (V
New-V
O) be+when 0.5V is above, shown in Fig. 5 A, if VOC change in concentration amount (V
New-V
Old) be more than benchmark rank+0.2V, then allow air supply fan and exhaust fan drive by " extra-heavy wind " (S20, S21).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank+0.1V above ,+below the 0.2V, then allow air supply fan and exhaust fan drive by " extra-heavy wind " (S22, S23).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank 0V above ,+below the 0.1V, then allow air supply fan and exhaust fan drive by " high wind " (S24, S25).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.1V above, below the 0V, then allow air supply fan and exhaust fan drive by " high wind " (S26, S27).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.2V above ,-below the 0.1V, then allow air supply fan and exhaust fan drive by " apoplexy " (S28, S29).
If VOC change in concentration amount (V
New-V
Old) be below benchmark rank-0.2V, then allow air supply fan and exhaust fan drive (S30) by " apoplexy ".
In addition, if above-mentioned comparative result is current VOC concentration relative value (V
New-V
O) be 0V above ,+0.5V following (S31), then VOC change in concentration amount (V
New-V
Old) and benchmark rank+0.2V ,+0.1V, 0V ,-0.1V ,-0.2V compares, and controls the air quantity of ventilating system with this.
Current VOC concentration relative value (V
New-V
O) be 0V above ,+when 0.5V is following, shown in Fig. 5 B, if VOC change in concentration amount (V
New-V
Old) be more than benchmark rank+0.2V, then allow air supply fan and exhaust fan drive by " extra-heavy wind " (S40, S41).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank+0.1V above ,+below the 0.2V, then allow air supply fan and exhaust fan drive by " high wind " (S42, S43).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank 0V above ,+below the 0.1V, then allow air supply fan and exhaust fan drive by " high wind " (S44, S45).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.1V above, below the 0V, then allow air supply fan and exhaust fan drive by " apoplexy " (S46, S47).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.2V above ,-below the 0.1V, then allow air supply fan and exhaust fan drive by " apoplexy " (S48, S49).
If VOC change in concentration amount (V
New-V
Old) be below benchmark rank-0.2V, then allow air supply fan and exhaust fan drive (S50) by " weak wind ".
In addition, if above-mentioned comparative result is current VOC concentration relative value (V
New-V
O) be-0.5V is above, 0V following (S51), then VOC change in concentration amount (V
New-V
Old) and benchmark rank+0.2V ,+0.1V, 0V ,-0.1V ,-0.2V compares, and controls the air quantity of ventilating system with this.
Current VOC concentration relative value (V
New-V
O) be-more than the 0.5V, when 0V is following, shown in Fig. 5 C, if VOC change in concentration amount (V
New-V
Old) be more than benchmark rank+0.2V, then allow air supply fan and exhaust fan drive by " high wind " (S60, S61).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank+0.1V above ,+below the 0.2V, then allow air supply fan and exhaust fan drive by " high wind " (S62, S63).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank 0V above ,+below the 0.1V, then allow air supply fan and exhaust fan drive by " apoplexy " (S64, S65).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.1V above, below the 0V, then allow air supply fan and exhaust fan drive by " apoplexy " (S66, S67).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.2V above ,-below the 0.1V, then allow air supply fan and exhaust fan drive by " weak wind " (S68, S69).
If VOC change in concentration amount (V
New-V
Old) be below benchmark rank-0.2V, then allow air supply fan and exhaust fan drive (S70) by " weak wind ".
In addition, if above-mentioned comparative result is current VOC concentration relative value (V
New-V
O) be-more than the 1.0V ,-0.5V following (S71), then VOC change in concentration amount (V
New-V
Old) and benchmark rank+0.2V ,+0.1V, 0V ,-0.1V ,-0.2V compares, and controls the air quantity of ventilating system with this.
Current VOC concentration relative value (V
New-V
O) be-more than the 1.0V ,-when 0.5V is following, shown in Fig. 5 D, if VOC change in concentration amount (V
New-V
Old) be more than benchmark rank+0.2V, then allow air supply fan and exhaust fan drive by " high wind " (S80, S81).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank+0.1V above ,+below the 0.2V, then allow air supply fan and exhaust fan drive by " apoplexy " (S82, S83).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank 0V above ,+below the 0.1V, then allow air supply fan and exhaust fan drive by " apoplexy " (S84, S85).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.1V above, below the 0V, then allow air supply fan and exhaust fan drive by " weak wind " (S86, S87).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.2V above ,-below the 0.1V, then allow air supply fan and exhaust fan drive by " weak wind " (S88, S89).
If VOC change in concentration amount (V
New-V
Old) be below benchmark rank-0.2V, then allow air supply fan and exhaust fan drive (S90) by " faint wind ".
In addition, if above-mentioned comparative result is current VOC concentration relative value (V
New-V
O) be below-1.0 (S71), then VOC change in concentration amount (V
New-V
Old) and benchmark rank+0.2V ,+0.1V, 0V ,-0.1V ,-0.2V compares, and controls the air quantity of ventilating system with this.
Current VOC concentration relative value (V
New-V
O) be-when 1.0V is following, shown in Fig. 5 E, if VOC change in concentration amount (V
New-V
Old) be more than benchmark rank+0.2V, then allow air supply fan and exhaust fan drive by " apoplexy " (S91, S92).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank+0.1V above ,+below the 0.2V, then allow air supply fan and exhaust fan drive by " apoplexy " (S93, S94).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank 0V above ,+below the 0.1V, then allow air supply fan and exhaust fan drive by " weak wind " (S95, S96).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.1V above, below the 0V, then allow air supply fan and exhaust fan drive by " weak wind " (S97, S98).
If VOC change in concentration amount (V
New-V
Old) be benchmark rank-0.2V above ,-below the 0.1V, then allow air supply fan and exhaust fan drive by " faint wind " (S99, S100).
If VOC change in concentration amount (V
New-V
Old) be below benchmark rank-0.2V, then allow air supply fan and exhaust fan drive (S101) by " faint wind ".
Thereby the present invention is VOC concentration relative value (V
New-V
OWith VOC change in concentration amount (V
New-V
Old) use as the key element of control air quantity, can the rapid situation about descending of corresponding effectively IAQ.
That is, when indoor VOC change in concentration amount sharply increases, also can keep the quality of room air effectively.
The invention effect
In sum, ventilating system air quantity control method of the present invention has following effect:
The 1st, VOC concentration relative value (V
New-V
O) and VOC change in concentration amount use as the key element of control air quantity, can tackle the situation that IAQ sharply descends effectively.
The 2nd, utilize VOC concentration relative value (V
New-V
O) and a plurality of reference values such as VOC change in concentration amount, judge the pollution level of room air, by the pollution level of judging, the air quantity of control ventilating system can improve the efficient of air cleaning to greatest extent with best air quantity.
If the practitioner of one's own profession can know by above-mentioned description, in the scope that does not break away from the technology of the present invention thought, might there be numerous variations and modification.
Therefore, technical scope of the present invention can not be limited the record content of embodiment again, but should stipulate according to the claim scope.
Claims (7)
1, a kind of air quantity control method of ventilating system is characterized in that, this air quantity control method comprises following several stages:
Read in VOC initial value V
0With current VOC concentration value V
NewStage;
Utilize VOC initial value V
0With current VOC concentration value V
New, calculate VOC concentration relative value V
New-V
0With VOC change in concentration amount V
New-V
OldStage, V
OldValue is V
0The previous sampled value of value;
Described VOC concentration relative value V
New-V
0Compare with the benchmark rank by several grade settings, judge VOC other stage of concentration level;
Described VOC change in concentration amount V
New-V
OldCompare with the benchmark rank by several grade settings, judge VOC change in concentration other stage of magnitude;
VOC concentration rank and VOC change in concentration magnitude according to described judgement are other, to the driving intensity of air supply fan and exhaust fan, the stage of controlling.
2, the air quantity control method of ventilating system according to claim 1 is characterized in that,
Described VOC concentration relative value V
New-V
0Be divided into A＞B＞C＞D benchmark rank, and VOC change in concentration amount V
New-V
OldBeing divided into a＞b＞c＞d＞e benchmark rank is the ventilating system control method of feature.
3, the air quantity control method of ventilating system according to claim 2 is characterized in that, this air quantity control method also comprises:
When being selected the air cleaning operation, in order to control the driving intensity of air supply fan and exhaust fan, described VOC concentration relative value V by the user
New-V
0With benchmark rank A, B, the stage that C, D compare;
If described comparative result is current VOC concentration relative value V
New-V
0Bigger than A, then VOC change in concentration amount V
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare;
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " extra-heavy wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " extra-heavy wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than e, d is little, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, the stage that then allows air supply fan and exhaust fan drive by " apoplexy " consists of the ventilating system control method of feature.
4, the air quantity control method of ventilating system according to claim 3 is characterized in that,
If current VOC concentration relative value V
New-V
0Be bigger and littler, then VOC change in concentration amount V than A than B
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare;
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " extra-heavy wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind ".
5, the air quantity control method of ventilating system according to claim 3 is characterized in that,
If current VOC concentration relative value V
New-V
0Be bigger, littler, then VOC change in concentration amount V than B than C
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare;
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind " consists of the ventilating system control method of feature.
6, the air quantity control method of ventilating system according to claim 3 is characterized in that,
If current VOC concentration relative value V
New-V
0Be bigger, littler, then VOC change in concentration amount V than C than D
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare;
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " high wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " weak wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " weak wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, then allow air supply fan and the exhaust fan be the ventilating system control method of feature by the stage that " faint wind " drives.
7, the air quantity control method of ventilating system according to claim 3 is characterized in that,
If current VOC concentration relative value V
New-V
0Be littler, then VOC change in concentration amount V than D
New-V
OldWith benchmark rank a, b, c, the stage that d, e compare;
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger than a, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than a than b, the stage that then allows air supply fan and exhaust fan drive by " apoplexy ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than b than c, the stage that then allows air supply fan and exhaust fan drive by " weak wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than c than d, the stage that then allows air supply fan and exhaust fan drive by " weak wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is bigger, littler than d than e, the stage that then allows air supply fan and exhaust fan drive by " faint wind ";
If VOC change in concentration amount V
New-V
OldFor the benchmark rank is littler than e, the stage that then allows air supply fan and exhaust fan drive by " faint wind ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100201435A CN100455931C (en) | 2004-07-26 | 2004-07-26 | Method for controlling air quantity in ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100201435A CN100455931C (en) | 2004-07-26 | 2004-07-26 | Method for controlling air quantity in ventilation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727790A CN1727790A (en) | 2006-02-01 |
| CN100455931C true CN100455931C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100201435A Expired - Fee Related CN100455931C (en) | 2004-07-26 | 2004-07-26 | Method for controlling air quantity in ventilation system |
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| CN (1) | CN100455931C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6318364B2 (en) * | 2014-07-23 | 2018-05-09 | パナソニックＩｐマネジメント株式会社 | Air conditioner and its operation method |
| CN106149835B (en) * | 2015-03-31 | 2020-01-21 | 广东松下环境***有限公司 | Ventilator and method for removing odor of ventilator |
| CN109751734B (en) * | 2019-01-28 | 2020-11-06 | 重庆大学 | Demand control ventilation system and method based on indoor VOCs emission prediction |
| CN112998447B (en) * | 2021-03-10 | 2022-08-16 | 深圳市博盛科电子有限公司 | VCO (voltage controlled oscillator) -based ventilation control system for chemical storage cabinet |
Citations (6)
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|---|---|---|---|---|
| US5254035A (en) * | 1991-10-18 | 1993-10-19 | Matsushita Seiko Co., Ltd. | Automatic operation apparatus for ventilating fan |
| US5261596A (en) * | 1991-06-14 | 1993-11-16 | Matsushita Electric Industrial Co., Ltd. | Air quality conditioning system |
| US5332151A (en) * | 1991-11-12 | 1994-07-26 | Gold Star Co., Ltd. | Cooling/heating apparatus having automatic ventilating function and its control method |
| US5791983A (en) * | 1995-10-20 | 1998-08-11 | Healthy Buildings International | Demand ventilation system |
| US5976010A (en) * | 1997-06-27 | 1999-11-02 | York International Corporation | Energy efficient air quality maintenance system and method |
| JP2001201141A (en) * | 2000-01-20 | 2001-07-27 | Fujitsu General Ltd | Controller for air cleaner |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5261596A (en) * | 1991-06-14 | 1993-11-16 | Matsushita Electric Industrial Co., Ltd. | Air quality conditioning system |
| US5254035A (en) * | 1991-10-18 | 1993-10-19 | Matsushita Seiko Co., Ltd. | Automatic operation apparatus for ventilating fan |
| US5332151A (en) * | 1991-11-12 | 1994-07-26 | Gold Star Co., Ltd. | Cooling/heating apparatus having automatic ventilating function and its control method |
| US5791983A (en) * | 1995-10-20 | 1998-08-11 | Healthy Buildings International | Demand ventilation system |
| US5976010A (en) * | 1997-06-27 | 1999-11-02 | York International Corporation | Energy efficient air quality maintenance system and method |
| JP2001201141A (en) * | 2000-01-20 | 2001-07-27 | Fujitsu General Ltd | Controller for air cleaner |
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|---|---|
| CN1727790A (en) | 2006-02-01 |
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