CN102441320A

CN102441320A - Dehumidification device and control method thereof

Info

Publication number: CN102441320A
Application number: CN2010105106470A
Authority: CN
Inventors: 秋山贵洋; 河冈将行
Original assignee: Takasago Thermal Engineering Co Ltd
Current assignee: Takasago Thermal Engineering Co Ltd
Priority date: 2010-10-13
Filing date: 2010-10-13
Publication date: 2012-05-09
Anticipated expiration: 2030-10-13
Also published as: HK1167840A1; CN102441320B

Abstract

The invention provides a dehumidification device and a control method therefore, which can simply realize the variable control operation with higher stability. A dehumidification device (1) is repeatedly dehumidified, regenerated and purged, which can regenerate the dehumidification capacity of a dehumidification rotor (11) and can also humidify the to-be-humidified target. Then the air temperature for the humidification object and the humidified air temperature can be obtained. The inferred humidity of humidified air target can be obtained according to the corresponding relationship between the prepared air temperature of the humidified target and the humidified air temperature and the air humidity of the humidified target. An appropriate operation condition corresponding to the obtained inferred humidity is obtained according to the relationship between the prepared appropriate operation condition and the air humidity of the humidified target. And the dehumidification device (1) can be controlled according to the appropriate obtained operation condition.

Description

The control method of dehydrating unit and dehydrating unit

Technical field

The present invention relates to the running control of dehydrating unit.

Background technology

In the past; As according to the change that removes humidity load etc. to the rotor speed of the dehumidifier of adsorber rotor mode or the technology that regeneration temperature is controlled; It is to detect air fed dew-point temperature that a kind of technology is arranged, and regulates rotor speed and regeneration temperature, makes the detected dew-point temperature condition (with reference to patent documentation 1) that meets the demands; In addition; Also having a kind of technology is to utilize hygrometer to detect air fed humidity, controls rotor speed changeably, makes detected humidity and set humidity consistent (with reference to patent documentation 2).

In addition, also having a kind of technology is under the low situation of the humidity of the air before dehumidifying, makes the rotating speed of rotor slack-off, under the high situation of the humidity of dehumidifying area entry air, the rotating speed of rotor is accelerated (with reference to patent documentation 3).Also having a kind of technology is to judge that according to the detected value that is located near the temperature sensor the regeneration zone terminal part regeneration whether near state completely, regulates regeneration air quantity (with reference to patent documentation 4).

Patent documentation 1: Japan Patent open communique spy open flat 6-63344 number.

Patent documentation 2: Japan Patent open communique spy open 2003-21378 number.

Patent documentation 3: Japan Patent open communique spy open flat 5-200231 number.

Patent documentation 4: Japan Patent open communique spy open 2002-331221 number.

In the past; Energy-saving operation method as the dry type dehydrating unit of the adsorber rotor mode of use under the low dew point environment such as manufacturing environment of for example lithium ion battery; It is to utilize hygrometer (comprising dew point instrument) to measure the humidity of dehumidifying area entry air and outlet air that a kind of method is arranged, according to the variation of the measured value control of turning round., hygrometer is because test section receives the influence of dirt etc., and certainty of measurement reduces easily.Specifically, for example the hygrometer of condenser type or resistance-type (dew point instrument) is owing to adhere to solvent vapour and dirt etc., and measured value is affected easily, and has measure error prolongation and the character that increases in time.In addition, minute surface cooled dew point instrument too because the dirt of the empty minute surface that causes in airborne polluter (gas and dust) can produce bad influence to measured value.

If the measure error of hygrometer (dew point instrument) increases, then carry out inappropriate running control based on this wrong measured value, there is the significantly problem of infringement wet-out property.Therefore, under the situation of using hygrometer and dew point instrument that dehydrating unit is controlled,, must regularly safeguard (for example cleaning minute surface etc.) and correction, maintain cumbersome dew point instrument and hygrometer in order to prevent to damage the stability of wet-out property.

Summary of the invention

In view of the above problems, problem to be solved by this invention is: the method for a kind of dehydrating unit and the running of control dehydrating unit is provided, can realizes the variable control running that stability is higher simply.

The present invention is through the air themperature of the object that dehumidifies according to conduct and the air themperature after the dehumidifying; Infer air humidity as the dehumidifying object; And, can realize the variable control running that stability is higher simply according to the operating condition of the humidity decision dehydrating unit of inferring.

In more detail, the present invention provides a kind of dehydrating unit, comprising: Dehumidifying element; Be used for the air that passes through is dehumidified; Partition member is divided into said Dehumidifying element: remove wet zone, be used to make the air as the dehumidifying object to pass through; Air to passing through dehumidifies, and make through after air dew point the regulation scope in; Regeneration zone is used for through making the air of regulating after the temperature through making the dehumidifying effect regeneration of said Dehumidifying element; And purge (パ one ジ) zone, be used to utilize the air that passes through to make said Dehumidifying element heat radiation; Change parts in zone distribute said Dehumidifying element according to the said reiteration that removes wet zone, said regeneration zone and said purging zone; Temperature obtains parts, obtains the temperature of the air of said conduct dehumidifying object; And utilize through said temperature except that the air after the wet zone dehumidifying; Infer that humidity obtains parts; According to the temperature of temperature and the air after the said dehumidifying of pre-prepd, said air as the dehumidifying object corresponding relation, obtain and obtain the dehumidify deduction humidity of air of object of the corresponding said conduct of said temperature that parts obtain by said temperature with the humidity of said air as the dehumidifying object; And suitable operating condition obtains parts; According to pre-prepd, the suitable operating condition of expression suitable running condition information with the relation of the humidity of said air as the object that dehumidifies; Acquisition and the corresponding said suitable operating condition of said deduction humidity that obtains by said deduction humidity acquisition parts; Said suitable operating condition is under the state in the scope of dew point in said regulation of the air after the said dehumidifying of maintenance; It is minimum making the said Dehumidifying element needed heat of regenerating, and controls said dehydrating unit according to said suitable operating condition.

The present invention is applicable to that in Dehumidifying element the limit makes the dehumidifying effect regeneration of Dehumidifying element, the dehydrating unit that dehumidifies to the air as the dehumidifying object in the limit through dehumidifying repeatedly, regenerate and purging.In addition, utilize zone change parts to distribute Dehumidifying element, make in Dehumidifying element, to form and remove wet zone, regeneration zone and purge three zones, zone, make Dehumidifying element be converted to these zones continuously or intermittently.Removing in the wet zone of such dehydrating unit,, high by the temperature of the air of the temperature of the air after dehumidifying before than dehumidifying through removing wet zone because of the influence of the heat of adsorption of steam.Air humidity before the dehumidifying is low more, and this temperature ascensional range is more little, and the air humidity before the dehumidifying is high more, and this temperature ascensional range is big more.Temperature that the present invention waits the air before and after this dehumidifying of research through experiment and simulation (simulation) in advance and relation as the air humidity of dehumidifying object are inferred the humidity as the air of the object that dehumidifies based on the temperature of the air before and after the dehumidifying.

The material that the humidity of inferring can be used as the operating condition of decision dehydrating unit uses.For example, based on inferring humidity, can determine to distribute the adjusting desired value of the air themperature of the change speed of Dehumidifying element, the use of regenerating by zone change parts.Promptly; Controlled according to the humidity and the dew point that utilize hygrometer (dew point instrument) to obtain in the past; But in the present invention; Measure and maintain problems such as trouble through control, can not produce the mistake that causes because of hygrometer (dew point instrument) according to deduction humidity, can realize the variable control running that stability is high simply.

The so-called operating condition that in the control of dehydrating unit, uses for example is the rotor speed of dehumidifying rotor formula dehydrating unit, as regeneration temperature by the adjustment desired value of regenerative heater thermal regeneration air.Usually, because rotor speed (or regeneration temperature) is more little, the needed heat of thermal regeneration is few more, can be energy-conservation, but the dew point of air supply (air after the dehumidifying) rises.In addition, compare, exist the absolute humidity of dehumidifying area entry low more, the tendency that air fed dew point is low more with identical rotor speed (or regeneration temperature).So-called in the present invention " suitable " operating condition is meant at air fed dew point and satisfies under the state of prescribed limit (scope of setting value or desired value); Can make the minimum operating condition of the needed heat of regeneration of Dehumidifying element; Particularly wait in the winter time when removing the little sub-load running of humidity load, can produce big effect.

In addition; In the present invention; Said Dehumidifying element is a dehumidifying rotor; Through making the rotational speed of said dehumidifying rotor with the time per unit of setting; Distribute said dehumidifying rotor according to the said reiteration that removes wet zone, said regeneration zone and said purging zone, said suitable operating condition obtains the said suitable running condition information of parts according to the relation of the humidity of the air of rotor speed said dehydrating unit, that expression is suitable and said conduct dehumidifying object, obtains the said suitable rotor speed corresponding with said deduction humidity; Said suitable rotor speed is under the state in the scope of dew point in said regulation of the air after the said dehumidifying of maintenance; It is minimum making the said dehumidifying rotor needed heat of regenerating, and said zone change parts distribute said dehumidifying rotor through according to the said suitable rotor speed that obtains said dehumidifying rotor being rotated according to the said reiteration that removes wet zone, said regeneration zone and said purging zone.

More particularly, under the situation low, because just enough with smaller dehumidifying effect as the air humidity of dehumidifying object; Institute so that rotor speed reduce, under the high situation of humidity, owing to need bigger dehumidifying effect; So increase rotor speed adopts said method to tackle.And satisfying the needed heat of regeneration that makes dehumidifying rotor under the state of scope (scope of setting value or desired value) of regulation at the dew point of the air after the dehumidifying and be minimum suitable rotor speed has certain relation with humidity as the air of dehumidifying object.Therefore, in the present invention, in advance through simulation and experiment etc., to the humidity of the air of the conduct dehumidifying object of dehydrating unit with study in the relation of rotor speed suitable aspect the consumed energy, according to this relation, based on inferring humidity decision rotor speed.In addition, the present invention for example can be used for the dry type dehydrating unit of so-called adsorber rotor mode.In addition, can utilize rotating speed itself (for example the rotating speed of per minute etc.) to set the rotating speed of time per unit, also can utilize velocity of rotation (the for example rotational angle of each second, rotation distance etc.) to set the rotating speed of time per unit.

In addition, in the present invention, be controlled so as to said rotor speed as the purge air quantity of the air quantity that imports the said air that purges the zone and change pro rata.

Particularly under the situation of the air air quantity (regeneration air quantity) that in based on the outlet temperature control regeneration that purges the zone, uses, preferably: under the situation that changes rotor speed, also keep certain even purge the Temperature Distribution of the outlet in zone.Therefore must make total purge air quantity (purge air quantity * purge time) certain.In addition, because purge time and rotor speed is inversely proportional to, so for total purge air quantity is kept necessarily, preferably purge air quantity is directly proportional with rotor speed.

For example, under the situation that reduces rotor speed, because dehumidifying rotor is elongated in the holdup time that purges the zone, so can use purge air quantity cooling and dehumidifying rotor still less.Particularly to be sent to the supply air quantity of load be under certain common design condition to the air after making dehumidifying; The dehydrating unit of the mode that the part of air after will dehumidifying is used for purging; If owing to reduced purge air quantity then the air quantity that dehumidifies also must reduce, so preferably: be controlled to purge air quantity with rotor speed proportional.

In addition; In the present invention; Said suitable operating condition obtain parts according to the said suitable operating condition of pre-prepd, expression, said as the dehumidifying object air humidity and as the suitable running condition information of the relation of the dehumidifying air quantity that imports the said air quantity that removes the air in the wet zone, obtain and the said deduction humidity and the corresponding said suitable operating condition of said dehumidifying air quantity that obtain the parts acquisition by said deduction humidity.

Promptly; In the present invention; In advance through simulation and experiment etc., to as the humidity of the air of dehumidifying object and dehumidifying air quantity with study in the relation of the suitable operating condition aspect the consumed energy (for example rotor speed), can be according to the suitable operating condition of this relation decision.As the information that is used to obtain suitable operating condition, except inferring humidity, can obtain the higher suitable operating condition of precision through using the dehumidifying air quantity.

In addition, dehydrating unit of the present invention also comprises: pressure reduction obtains parts, and the acquisition importing is said to remove wet zone air before and pass through said pressure reduction except that the air behind the wet zone; And infer that air quantity obtains parts; Corresponding relation according to pre-prepd said pressure reduction and said dehumidifying air quantity; Obtain and obtained the corresponding said deduction dehumidifying air quantity that removes the air of wet zone of importing of said pressure reduction that parts obtain by said pressure reduction, said suitable operating condition obtains parts and obtains and obtained said deduction humidity that parts obtain by said deduction humidity and by the said deduction of the said deduction air quantity acquisition parts acquisition corresponding said suitable operating condition of air quantity that dehumidifies.

Dehydrating unit of the present invention also comprises: pressure reduction obtains parts, obtains to import the said air and the pressure reduction that purges the air behind zone through this that purges before the zone; Infer that air quantity obtains parts; Corresponding relation according to pre-prepd said pressure reduction and said purge air quantity; Obtain the deduction purge air quantity of the regional air of the importing said purging corresponding, be controlled to said deduction purge air quantity with said rotor speed and change pro rata with obtain said pressure reduction that parts obtain by said pressure reduction.

In order to obtain air quantity, can the actual air volume meter, but that kind as described above can be inferred air quantity according to pressure reduction.For air volume meter, also identical with hygrometer etc., often there be wrong the measurement and the problem of maintenance trouble, so, can carry out correct control simply through obtaining air quantity with inferring.

In addition; In the present invention; Utilize regenerative heater to regulate the temperature of the air that imports said regeneration zone; The temperature that make to import the air of said regeneration zone becomes the regeneration temperature of setting, and said suitable operating condition obtains parts according to the said suitable running condition information of regeneration temperature said dehydrating unit, that expression is suitable with the relation of the humidity of said air as the object that dehumidifies, and obtains the said suitable regeneration temperature corresponding with said deduction humidity; Said suitable regeneration temperature is under the state in the scope of dew point in said regulation of the air after the said dehumidifying of maintenance; It is minimum making the said Dehumidifying element needed heat of regenerating, and said regenerative heater is regulated the temperature of the air that imports said regeneration zone, makes that the temperature of the air that imports said regeneration zone is said suitable regeneration temperature.

More particularly; Under the situation low as the air humidity of dehumidifying object; Since just enough with less dehumidifying effect, thus carry out correspondence through reducing regeneration temperature, under the situation high as the air humidity of dehumidifying object; Owing to need bigger dehumidifying effect, tackle through improving regeneration temperature.And the dew point of the air after dehumidifying satisfies the needed heat of adjustment that makes the air that uses in the regeneration under the state of scope (scope of setting value or desired value) of regulation has certain relation as the suitable regeneration temperature of minimum and air humidity as the dehumidifying object.Therefore, in the present invention, the relation of the humidity of the air of the conduct dehumidifying object through simulation and research such as experiment dehydrating units and suitable regeneration temperature aspect consumed energy in advance is according to this relation, based on inferring humidity decision regeneration temperature.

In addition, in the present invention, said temperature obtains the temperature that parts obtain the air of said conduct dehumidifying object; And in the air after said dehumidifying, in temperature except that the air after the said dehumidifying in the wet zone near said regeneration zone.

If stably or transition ground carry out the running under the few state of purge air quantity, sometimes under the inadequate state of cooling of Dehumidifying element in purging the zone to moving except that wet zone.Under the sufficient situation of cooling in purging the zone; The Temperature Distribution of removing discharge air one side of wet zone produces temperature difference hardly; But under the inadequate situation of cooling in purging the zone; Because of the thermal capacity of Dehumidifying element causes heat from purging the zone to the dehumidifying zone-transfer, it is high relatively near the temperature of the air that purges the zone that the air that removes wet zone is discharged a side.Therefore; In the present invention; Through using in temperature near the temperature of removing the air after the dehumidifying in the wet zone of the regeneration zone air after as dehumidifying, can prevent since heat from the dehumidify deterioration of deduction precision of air humidity of object of the conduct that purges the zone and cause to the influence of dehumidifying zone-transfer.

In addition; The present invention provides a kind of control method of dehydrating unit; Said dehydrating unit comprises: partition member is divided into the dehumidifying rotor that is used for the air that passes through dehumidifies: remove wet zone, be used to make the air as the dehumidifying object to pass through; Air to passing through dehumidifies, and make through after air dew point the regulation scope in; Regeneration zone is used for through making the air of regulating after the temperature through making the dehumidifying effect regeneration of said dehumidifying rotor; And purge the zone, be used to utilize the air that passes through to make said dehumidifying rotor heat radiation; And zone change parts; Rotating speed through with the time per unit set rotates said dehumidifying rotor; Distribute said dehumidifying rotor according to the said reiteration that removes wet zone, said regeneration zone and said purging zone; The control method of said dehydrating unit is carried out following steps: temperature obtains step, obtains the temperature of the air of said conduct dehumidifying object; And utilize through said temperature except that the air after the wet zone dehumidifying; Infer that humidity obtains step; According to the corresponding relation of pre-prepd, said air themperature and the air themperature after the said dehumidifying as the dehumidifying object, obtain the dehumidify deduction humidity of air of object of the said conduct corresponding with the said temperature that obtains in said temperature to obtain in the step with the humidity of said air as the dehumidifying object; Suitable operating condition obtains step; According to pre-prepd, the suitable operating condition of expression suitable running condition information with the relation of the humidity of said air as the object that dehumidifies; Obtain and the corresponding said suitable operating condition of said deduction humidity that obtains in said deduction humidity to obtain in the step; Under the state in the scope of dew point in said regulation of the air of said suitable operating condition after keeping said dehumidifying, it is minimum making the said dehumidifying rotor needed heat of regenerating; And the control step, according to said suitable operating condition, at least in the temperature of the rotating speed of the dehumidifying rotor of said dehydrating unit and said regeneration air any controlled.

According to the present invention, a kind of method that the rotor speed and the regeneration temperature of dehydrating unit are carried out variable control can be provided, this method can realize the variable control running that stability is higher simply.

Description of drawings

Fig. 1 is the dry type dehydrating unit of representing to have embodiment, the figure that is used to provide system's formation of hanging down the dew point air.

Fig. 2 is the dehumidifying rotor of expression embodiment and the stereogram that section is cut apart box.

Fig. 3 is the figure that is illustrated in the position that is used for detecting the temperature sensor that is provided with near the outlet temperature of the position of regeneration zone that purges the zone in the embodiment.

Fig. 4 A is the rotor of the dehydrating unit position angle on rotation direction and the regeneration zone of expression embodiment and the figure that purges the relation of regional outlet temperature.

Fig. 4 B is illustrated in each regeneration air quantity ratio, the figure of the outlet air temperature of regeneration zone and the purging zone coordinate (position angle) on rotation direction.

Fig. 4 C be the regeneration air quantity shown in the presentation graphs 4B than and do not have Temperature Distribution, become the figure of the dependency relation between the air themperature behind the purging of homogenising.

Fig. 5 is the figure of dehumidifying area entry air absolute humidity and the relation of the difference in air temperature of removing the wet zone gateway in the dry type dehydrating unit of expression embodiment.

Fig. 6 is the figure of suitable rotor speed with the relation of the absolute humidity of dehumidifying area entry air of expression embodiment.

Fig. 7 is the figure of suitable regeneration temperature with the relation of the absolute humidity of dehumidifying area entry air of expression embodiment.

Fig. 8 is when being illustrated in face wind speed through removing wet zone=2.0 meter per seconds for example, the figure of the dew-point temperature of dehumidifying regional export air and the relation of rotor speed.

When Fig. 9 is for example expression through the face wind speed that removes wet zone=2.0 meter per seconds, the figure of the dew-point temperature of dehumidifying regional export air and the relation of regeneration temperature.

Figure 10 A is the figure A that expression utilizes the energy-saving effect that the control of embodiment obtains.

Figure 10 B is the figure B that expression utilizes the energy-saving effect that the control of embodiment obtains.

Figure 11 is the figure that the air themperature of dehumidifying regional export one side of expression embodiment distributes.

Figure 12 is the figure of the example that the position is set (1) of the expression temperature sensor that is used to detect the air themperature after the dehumidifying.

Figure 13 is the figure of the example that the position is set (2) of the expression temperature sensor that is used to detect the air themperature after the dehumidifying.

Figure 14 is illustrated in according to pressure reduction and temperature utilization to infer under the situation of coming zoning ventilation air quantity the figure of the example of the detection position of pressure reduction and temperature.

Figure 15 is illustrated in to use under the situation of the present invention the figure of the example of temperature measuring positions in the two phase process systems.

Figure 16 is the figure of the variation of the expression handling process of using dehumidification system of the present invention.

Figure 17 is the figure that representes the discharged air temperature variation of dehydrating unit in the past.

Description of reference numerals

1 dry type dehydrating unit

11 dehumidifying rotors

11a removes wet zone

The 11b regeneration zone

11c purges the zone

12,13 sections are cut apart box

42,43,44 temperature sensors

23,46 air volume meters

The specific embodiment

Embodiment to dehydrating unit of the present invention describes with reference to the accompanying drawings.In this external embodiment; To in the dry type dehydrating unit of adsorber rotor mode, using situation of the present invention to describe; But the invention is not restricted to the dry type dehydrating unit of adsorber rotor mode, so long as the dehydrating unit that utilizes the circulation of dehumidifying, regeneration and purging to carry out the regeneration of dehumidifying effect can use the present invention.For example; The present invention also goes for the reciprocating motion type dehydrating unit; The type of this reciprocating motion type dehydrating unit is: to the inner Dehumidifying element of being furnished with the rectangle of hygroscopic agent; The regeneration air pipeline that configuration is inserted from the open end of this Dehumidifying element, this regeneration air pipeline moves back and forth (what utilize in fact that driving such as motor moves can be the regeneration air pipeline, also can be Dehumidifying element) with respect to Dehumidifying element.In addition, the present invention has nothing to do with the Region Segmentation ratio of dehumidifying rotor and the size of dehumidifying rotor, can be suitable for.In addition, the present invention also goes for having the dehydrating unit of the dehumidifying rotor of multistage.

Fig. 1 is the figure dry type dehydrating unit, that be used for providing to low dew point spaces such as low dew point chambers system's formation of low dew point air that expression has this embodiment.Fig. 2 is dehumidifying rotor of this embodiment of expression and the stereogram that section is cut apart box.Dry type dehydrating unit 1 has dehumidifying rotor 11, through contain the matrix material of hygroscopic agents such as synthetic zeolite, silica gel and lithium chloride in dehumidifying rotor 11 internal configurations, to dehumidifying through dehumidifying rotor 11 inner air.On two end faces of dehumidifying rotor 11, dispose section and cut apart

box

12,13, cut apart

box

12,13 through section and make air importing dehumidifying rotor 11 and air is discharged from dehumidifying rotor 11.Wherein, dehumidifying rotor 11 is equivalent to Dehumidifying element of the present invention, and section is cut apart

box

12,13 and is equivalent to partition member of the present invention.

Section is cut apart

box

12,13 inside separately cut apart, be used for being divided into dehumidifying rotor 11 except that wet zone 11a, regeneration zone 11b and purging regional 11c.Section is cut apart box 12 and is provided with: dehumidifying area entry 12a is used for importing the air as the dehumidifying object to removing wet zone 11a; Regeneration zone outlet 12b is used for making the used air of dehumidifying effect regeneration from regeneration zone 11b discharge; And purge regional export 12c, be used for discharging scavenging air from purging regional 11c.Section is cut apart box 13 and is provided with: dehumidifying regional export 13a is used for from removing the air after wet zone 11a discharges dehumidifying; Regeneration zone inlet 13b is used for importing the air that uses in regeneration to regeneration zone 11b; Purge zone realm entry 13c is used for importing scavenging air to purging regional 11c.

Dehumidifying rotor 11 is equipped with above-mentioned section at two ends to be cut apart under the state of

box

12,13, utilizes gear motor 72 to drive and rotates.Wherein, as stated, the inside of section being cut apart

box

12,13 is cut apart, and is used for the rotation direction of dehumidifying rotor 11 at dehumidifying rotor 11, is divided into except that wet zone 11a, regeneration zone 11b in order and purges regional 11c.Therefore; The air of dehumidifying rotor 11 is divided into three parts (on the rotation direction of dehumidifying rotor 11 through the zone; Order is for removing wet zone 11a, regeneration zone 11b and purging regional 11c); Follow the rotation of dehumidifying rotor 11, the each several part of dehumidifying rotor 11 order with remove wet zone 11a, regeneration zone 11b and purge regional 11c corresponding.Therefore, utilize repeatedly dehumidifying rotor 11 dehumidifying, dehumidifying rotor 11 dehumidifying effect regeneration and to the purging of the dehumidifying rotor 11 that becomes high temperature because of regeneration, keep the wet-out property of dry type dehydrating unit.In addition, gear motor 72 is controlled by control arithmetic unit CU.That is, gear motor 72 is equivalent to change parts in zone of the present invention with its control arithmetic unit CU of control.

Removing wet zone 11a, regeneration zone 11b and purging regional 11c is respectively that to be divided into the turning cylinder of dehumidifying rotor 11 be the radiation zone (with reference to Fig. 2) at center.If in order to the turning cylinder of dehumidifying rotor 11 is that the angle at center representes that each zone cuts apart the size in shared zone in the box at whole section; Then in this embodiment; Removing wet zone 11a is 270 degree, and regeneration zone 11b is 60 degree, and purging regional 11c is 30 degree (with reference to Fig. 3).In addition, cut apart on each gateway on the

box

12,13 and be connected with pipeline respectively being arranged on section.

Be used to obtain be connected the dehumidifying area entry 12a that section is cut apart box 12 as the dehumidifying pipeline 22 of the air of dehumidifying object.In dehumidifying pipeline 22, be provided with fan 21, utilize the running of fan 21 to obtain air as the dehumidifying object.

Be used for offering the service 24 that hangs down the dew point space to the low dew point air after the dehumidifying and be connected the dehumidifying regional export 13a that section is cut apart box 13.Utilize the effect of hygroscopic agent in the dehumidifying rotor 11 etc. that the air that obtains from dehumidifying pipeline 22 is dehumidified, from the dry type dehydrating unit, discharge through service 24.In addition; In the dry type dehydrating unit, be set with setting dew point as desired value; Under the situation that the dry type dehydrating unit moves as desirable, the air of the conduct dehumidifying object that obtains from dehumidifying pipeline 22 is dehumidified this below settings dew point, then to service 24 discharges.

Being used to import the purging that is used to reduce through the air of the temperature of the hygroscopic agent after the regeneration zone 11b regeneration etc. imports pipeline 25 and is connected the purge zone realm entry 13c that section is cut apart box 13.Service 24 is except with low dew point space is connected; Also be connected with the purging importing pipeline 25 that is used for to purging regional 11c importing air; The part of air of discharging to service 24 is provided for low dew point space, and a part is directed to through purging importing pipeline 25 and purges regional 11c.In addition, through controlling being located at the supply damper in the service 24 and being located at the purging importing damper that purges in the importing pipeline 25, adjustment is to the quantity delivered of hanging down the dew point space with to the import volume that purges regional 11c.

Be used for being connected the purging regional export 12c that section is cut apart box 12 to the purging discharge duct 26 that purges used air discharge.In addition, be used for being connected the regeneration zone outlet 12b that section is cut apart box 12 at the regeneration discharge duct 27 of discharging the used air of hygroscopic agent regeneration of dehumidifying usefulness.Purging discharge duct 26 converges with regeneration discharge duct 27 near the upper reaches of regeneration fan 31.Therefore, purge used air and be reproduced fan 31 sucking-offs with the used air of regeneration, a part is discharged outside system.

The regeneration that is used for importing the air that uses in the hygroscopic agent regeneration of dehumidifying usefulness imports pipeline 32 and is connected the regeneration zone inlet 13b that section is cut apart box 13.In addition, regeneration imports pipeline 32 and is connected with regeneration discharge duct 27, and is equipped with regenerative heater 33 midway at the importing pipeline 32 of regenerating.Therefore, after purging used air used air being reproduced fan 31 sucking-offs with regeneration, a part is discharged outside system, and a part is sent to regeneration and imports pipeline 32.Through to being located at the exhaust damper of regeneration on the discharge duct 27 and being located at the circulation damper that regeneration imports on the pipeline 32 and controlling, adjust to system outside capacity and to the import volume of regeneration importing pipeline 32.

The air that is sent to regeneration importing pipeline 32 imports regeneration zone 11b after being heated by regenerative heater 33.Thermoregulator 45 obtains to be located at the testing result of the temperature sensor 44 between regenerative heater 33 and the regeneration zone inlet 13b; Through utilizing 45 pairs of regenerative heaters 33 of thermoregulator to control, the regeneration temperature of the adjustment of the regeneration air that imports regeneration zone 11b to setting.The dehumidifying effect of the part that is positioned at the position corresponding with regeneration zone 11b of dehumidifying rotor 11 utilizes regeneration air and obtains regeneration, and after this this part is reused for dehumidifying through moving to and removing the corresponding position of wet zone 11a.

The control of regeneration air quantity

In the dehydrating unit of this embodiment, at the absolute humidity of deduction of the present invention dehumidifying area entry air, before the processing that rotor speed and/or regeneration temperature are controlled (or simultaneously), the control of the air quantity of regenerating.In addition, so-called regeneration air quantity is meant through importing regeneration zone 11b, is used to make the air quantity of air (is the air that is heated to high temperature at this) of the dehumidifying effect regeneration of dehumidifying rotor 11.Regeneration fan 31 to being located in the regeneration importing pipeline 32 is controlled; Make the air quantity that detects in the air volume meter 46 be located at regeneration fan 31 downstream become the object regeneration air quantity (in this embodiment, the suitable regeneration air quantity that determines the method with following explanation is set at the object regeneration air quantity) of setting.But, also can adopt other method that the regeneration air quantity is controlled based on embodiment.In addition, based on the difference of embodiment, also can omit the control of the regeneration air quantity of back narration.

Figure 17 is that the discharged air temperature of representing dehydrating unit in the past changes.Based on variations in temperature shown in Figure 17, can confirm: at regeneration zone 11b regeneration was finished fully, regional 11c only carries out the cooling of rotor at purging in the past.The temperature of rotor that at first makes the heat of regeneration air rises, and (a among the figure～d), after this heat of desorption as moisture uses the (d among the figure～e).Then, the simultaneous temperature that finishes in the moisture desorb (e among the figure～f) that rises again.Be arranged on the position among the regeneration zone 11b to temperature sensor in the past, controlled the regeneration air quantity with the mode that detects the regeneration ending temperature with this temperature sensor near the regional 11c of purging.Therefore, in the past, the heat of after the moisture desorb finishes, giving rotor reduced the treatment effeciency of regeneration and purging.Wherein, so-called regeneration ending temperature is for example to be redefined for 100 as being used for according to judging the temperature whether regeneration of rotor finishes through the air themperature of rotor.

Different therewith; In this embodiment, in the control of regeneration air quantity, do not finish fully in regeneration zone 11b regeneration even be conceived to; In purging regional 11c, utilize the accumulation of heat heating and blowing air of rotor to make dehumidifying effect regeneration, regeneration is finished in purging regional 11c.Promptly; The regeneration air quantity is controlled; Make the highest near the outlet temperature of the position that purges regional 11c in than regeneration zone 11b in purging regional 11c, and to make the outlet temperature near regeneration zone 11b position in purging regional 11c be more than the regeneration ending temperature near the outlet temperature of regeneration zone 11b position.

Fig. 3 is illustrated in the figure that is used for detecting the position that purges the temperature sensor 41 that regional 11c is provided with near the outlet temperature of regeneration zone 11b position in this embodiment.Detect the mode of regeneration ending temperature through the temperature sensor 41 that is arranged on position shown in the figure with utilization; Control the regeneration air quantity; Make the regeneration air quantity be: in regeneration zone 11b, not exclusively to finish regeneration, in purging regional 11c, utilize the regeneration air quantity of accomplishing regeneration by the warmed-up purging air of the accumulation of heat of rotor, thereby improve the efficient of device.Near the position of regeneration zone 11b, the center that is meant than purges regional 11c is more near the position of regeneration zone 11b one side in the regional 11c of this said purging.

Fig. 4 A be the dehydrating unit rotor of this embodiment of expression on rotation direction angular position theta and regeneration zone 11b and purge the figure of relation of the outlet temperature of regional 11c.The temperature of rotor that at first is used for A～E in the drawings, the heat of regeneration air making rises, and (A of figure～D) after this uses (the D among the figure～E) as the heat of desorption that is adsorbed moisture.Wherein, in the present embodiment, owing to control the regeneration air quantity with the mode that detects the regeneration ending temperature with temperature sensor shown in Figure 3 41, under the state before rotor regeneration will finish, rotor shifts to purging regional 11c.Wherein, near most of zone of removing the outlet of the rotor under the E state has reached about 140 degree Celsius in the drawings.In addition because the thermal capacity of the unit volume of rotor is far longer than the thermal capacity of air, so the rotor under the E state is the accumulation of heat state of high temperature.If in this rotor, flow through the purging air of low temperature, then the temperature of this purging air is elevated to rapidly about 140 degree Celsius, to the hygroscopic agent that does not the finish regeneration (F～G) that regenerates.According to above-mentioned processing, the dehydrating unit of this embodiment can be practiced thrift the regeneration energy needed with comparing in the past.

In addition; Research according to inventor etc. is clear and definite: make under the certain state of purge air quantity; Through after purging regional 11c, (air behind the purging is mixed not have the state of Temperature Distribution; The temperature that purges the back air becomes uniform state) purging after the temperature (also can be described as the mean temperature that purges regional 11c outlet air) of air follow of the variation of regeneration air quantity than (=regeneration air quantity/dehumidifying air quantity), have dependency relation with the distribution of regeneration zone 11b and each outlet temperature of the regional 11c of purging.Wherein, so-called regeneration air quantity is than being meant that the regeneration air quantity is with respect to the ratio that passes through except that the air quantity (the processing air quantity of dehydrating unit) of wet zone.

Fig. 4 B is illustrated in each regeneration air quantity ratio, the figure of regeneration zone 11b and the outlet air temperature that purges the coordinate (position angle) of regional 11c on rotation direction.In the example shown in Fig. 4 B, can confirm: if the air quantity that reduces to regenerate (value of air quantity than α reduces to regenerate); Then the distribution curve of outlet air temperature is right-hand mobile to figure; And there is following regeneration air quantity ratio; Promptly; The highest near the outlet temperature of the position that purges regional 11c in all than regeneration zone 11b near the outlet temperature of any position of regeneration zone in purging regional 11c, and the outlet temperature near any position of regeneration zone is more than the regeneration ending temperature in purging regional 11c.

Fig. 4 C be the regeneration air quantity shown in the presentation graphs 4B than and do not have Temperature Distribution, become the figure of the dependency relation between the temperature of air behind the purging of homogenising.Can confirm according to Fig. 4 C: the regeneration air quantity than and do not have Temperature Distribution, become between the temperature of air behind the purging of homogenising and have dependency relation.Therefore, in the control of the regeneration air quantity of above-mentioned explanation, as shown in Figure 3; The method that adopts is: utilize temperature sensor 41 directly to measure to purge among the regional 11c outlet temperature near regeneration zone 11b position; According to this temperature decision regeneration air quantity, replace this method, also can adopt following method; That is: use is located at the temperature sensor (having omitted diagram) that purges in the discharge duct 26; Measure the temperature there is not Temperature Distribution, becomes air behind the purging of homogenising, according to this temperature, decision regeneration air quantity.Also can control the regeneration air quantity even utilize such method; Make to purge among the regional 11c outlet temperature near regeneration zone 11b position than the highest among the regeneration zone 11b, and purge that the outlet temperature near regeneration zone 11b position is more than the regeneration ending temperature among the regional 11c near the outlet temperature that purges regional 11c position.

Utilize and remove wet zone gateway temperature controlling

The dry type dehydrating unit of present embodiment is controlled rotor speed and regeneration temperature by utilizing control arithmetic unit CU, realizes running efficiently.In this embodiment, infer suitable rotor speed or suitable regeneration temperature according to the air themperature of dehumidifying area entry 12a, dehumidifying regional export 13a.

Near the dehumidifying area entry 12a of dehumidifying pipeline 22; Be provided with the temperature sensor 42 that is used to detect as the temperature of the air of dehumidifying object; Near the dehumidifying regional export 13a of service 24, be provided with the temperature sensor 43 that is used to detect the air supply temperature after the

dehumidifying.Temperature sensor

42,43 detects temperature (the intake air temperature T that gets into the air in the dry type dehydrating unit through dehumidifying pipeline 22 _A) and be sent to low dew point space or purge air themperature (the outlet air temperature T that imports pipeline 25 through service 24 _B), and send detected temperature T to control arithmetic unit CU _AAnd temperature T _BIn addition, in dehumidifying pipeline 22, be provided with air volume meter 23.Air volume meter 23 detects the air quantity that gets into dry type dehydrating unit air through dehumidifying pipeline 22, and sends air volume signal to control arithmetic unit CU.Control arithmetic unit CU calculates the face wind speed v that removes wet zone according to the air volume signal of input _Pro

Fig. 5 is the dehumidifying area entry air absolute humidity x of the dry type dehydrating unit of this embodiment of expression _ADifference in air temperature Δ T with dehumidifying area entry 12a, dehumidifying regional export 13a _Pro=T _B-T _AThe figure of relation.Removing wet zone 11a, because of the influence of water vapor adsorption heat, outlet air temperature T _BThan intake air temperature T _AHigh.The absolute humidity x of dehumidifying area entry air _ALow more this temperature ascensional range Δ T _ProMore little, the absolute humidity x of dehumidifying area entry air _AHigh more this temperature ascensional range Δ T _ProBig more.Study the difference in air temperature Δ T of this dehumidifying area entry 12a, dehumidifying regional export 13a in advance through experiment and simulation etc. _ProAbsolute humidity x with dehumidifying area entry air _ARelation, with relational expression (for example below shown in formula (1)) or humidity inference process form, as inferring that humidity information stores in the storage device of control arithmetic unit CU with figure etc.Control arithmetic unit CU receives the air themperature T of dehumidifying area entry 12a, dehumidifying regional export 13a _A, T _BMeasured value after, through use this relational expression carry out computing or with reference to the humidity inference process with figure, infer the absolute humidity x of dehumidifying area entry air _ACool off fully purging regional 11c, and at heat not from purging regional 11c to removing under the condition that wet zone 11a shifts the absolute humidity x of dehumidifying area entry air _AAccording to the intake air temperature T _AWith outlet air temperature T _BFormula (1) below utilizing confirms that control arithmetic unit CU passes through the air themperature T of dehumidifying area entry 12a, dehumidifying regional export 13a _A, T _BThe substitution formula carries out computing in (1), can irrespectively infer the absolute humidity x of dehumidifying area entry air with rotor speed, regeneration temperature, dehumidifying air quantity etc. _A

x _A=f (T _A, T _B) ... formula (1)

Control arithmetic unit CU uses the absolute humidity x of this dehumidifying area entry air _ACarry out variable control, make and when humidity is low, reduce rotor speed (or reducing regeneration temperature), when humidity is high, increase rotor speed (or improving regeneration temperature).

Fig. 6 is the suitable rotor speed ω of this embodiment of expression _OptAbsolute humidity x with dehumidifying area entry air _AThe figure of relation.Fig. 7 is the suitable regeneration temperature T of this embodiment of expression _{Reg, opt}Absolute humidity x with dehumidifying area entry air _AThe figure of relation.Study through experiment and simulation etc. in advance for this relation; Use figure forms such as (with reference to Fig. 7) with relational expression (formula (2) and formula (3) shown in reference is following), rotor speed control with figure (with reference to Fig. 6) or regeneration temperature control, be stored in as suitable running condition information in the storage device of control arithmetic unit CU.

ω _Opt=f (v _Pro, x _A, T _Reg, T _A) ... formula (2)

T _{Reg, opt}=f (v _Pro, x _A, ω, T _A) ... formula (3)

The whole flow process of facing the processing of the air themperature decision operating condition that utilizes dehumidifying area entry 12a, dehumidifying regional export 13a down describes.At first, control arithmetic unit CU with figure, calculates dehumidifying area entry air absolute humidity x with reference to the humidity inference process according to the temperature signal from

temperature sensor

42,43 inputs _A(utilizing formula (1)).In addition, control arithmetic unit CU calculates the face wind speed v that removes wet zone according to the air volume signal from air volume meter 23 inputs _ProBut, as through except that each regional air air quantity such as wet zones, also can detect, but obtain through formula (4) inference process with the back narration without air volume meter.Then, control " control of rotating speed ", any control in " control of regeneration temperature " and " control of rotating speed and regeneration temperature " that arithmetic unit CU determines in advance.

Under the situation of control rotating speed, control arithmetic unit CU is the face wind speed v that removes wet zone _Pro, dehumidifying area entry air absolute humidity x _A, regeneration temperature T _Reg, the intake air temperature T _AIn the substitution formula (2), perhaps figure is used in control with reference to rotor speed, calculates suitable rotational speed omega _OptAs desired value, regulate the rotating speed of the motor that drives dehumidifying rotor 11 to this suitable rotating speed.

Under the situation of control regeneration temperature, control arithmetic unit CU is the face wind speed v that removes wet zone _Pro, dehumidifying area entry air absolute humidity x _A, rotor speed ω, intake air temperature T _ASubstitution formula (3), perhaps figure is used in control with reference to regeneration temperature, calculates suitable regeneration temperature T _{Reg, opt}As desired value, regulate the output of regenerative heater to this suitable regeneration temperature.

Under control rotating speed and regeneration temperature both sides' situation, control arithmetic unit CU removes basis the face wind speed v of wet zone _Pro, dehumidifying area entry air absolute humidity x _AAnd intake air temperature T _AThe arithmetic expression of the suitable rotating speed that in advance makes, the combination of regeneration temperature; Perhaps the control of rotor speed, regeneration temperature is stored in the storage device with scheming etc.; Through using this arithmetic expression to carry out computing or using figure, calculate the suitable combination of rotor speed and regeneration temperature with reference to said rotor speed, regeneration temperature control.As desired value, regulate the rotating speed of the motor that drives dehumidifying rotor 11 and the output of regenerative heater to this suitable rotating speed and suitable regeneration temperature.

Effect

Fig. 8 is that expression is through removing the face wind speed v of wet zone _ProDuring=2.0 meter per seconds, dehumidifying regional export air dew point temperature T _{D, B}Figure with the example of the relation of rotor speed ω.Make under the certain situation of rotor speed, because the absolute humidity x of dehumidifying area entry air _A[g/kg (DA)] is low more, dehumidifying regional export air dew point temperature T _{D, B}Low more, so become the dehumidifying that surpasses needs.According to the control of the rotor speed of this embodiment, at the absolute humidity x of dehumidifying area entry air _AUnder the low situation; Owing to be controlled to: reduce rotor speed ω in that the air supply dew point is satisfied in the scope of design specification; So the holdup time of dehumidifying rotor 11 in regeneration zone 11b is elongated, can use reactivation heat (with regeneration air quantity still less) still less to regenerate.

Fig. 9 is illustrated in through removing the face wind speed v of wet zone _ProDuring=2.0 meter per seconds, dehumidifying regional export air dew point temperature T _{D, B}With regeneration temperature T _RegThe figure of example of relation.Make regeneration temperature T _RegUnder certain situation, because the absolute humidity x of dehumidifying area entry air _ALow more, dehumidifying regional export air dew point temperature T _{D, B}Low more, so become the dehumidifying that surpasses needs.According to the control of the regeneration temperature of this embodiment, at the absolute humidity x of dehumidifying area entry air _AUnder the low situation, owing to be controlled to: reduce regeneration temperature T in that the air supply dew point is satisfied in the scope of design specification _RegSo the temperature ascensional range of the dehumidifying rotor 11 among the regeneration zone 11b diminishes, reduced the needed heat of thermal regeneration.

Figure 10 A and Figure 10 B be the energy-saving effect that obtains of the control of expression through this embodiment (reactivation heat when establishing specified running be 100% o'clock reactivation heat than) figure.If the face wind speed through removing wet zone is v _Pro=2.0 meter per seconds (specified) and v _ProTwo kinds of situation of=1.0 meter per seconds.Utilize formula (4) to confirm purging face wind speed, utilize above-mentioned processing that the regeneration air quantity is controlled.

Result according to shown in Figure 10 A and Figure 10 B can confirm: at x _ADuring the sub-load of=0.5g/kg (DA), when carrying out " control of rotating speed ", when turning round with rated speed; When the v=2.0 meter per second, can reduce about 27% reactivation heat; When the v=1.0 meter per second, can reduce about 58% reactivation heat, when carrying out " control of regeneration temperature ", when turning round with the rated regenerative temperature; When the v=2.0 meter per second, can reduce about 10% reactivation heat, when the v=1.0 meter per second, can reduce about 22% reactivation heat.In order to obtain such energy-saving effect, must use hygrometer and dew point instrument in the technology in the past, but according to the dry type dehydrating unit of this embodiment, even do not use hygrometer also can obtain the energy-saving effect identical with using hygrometer and dew point instrument with dew point instrument.With compared with techniques in the past, the present invention can improve the stability of wet-out property, and does not need regularly hygrometer and dew point instrument to be carried out correction operation, and maintenance becomes easy.

Variation: the measuring position of dehumidifying regional export air themperature

Figure 11 is the figure that the air themperature of dehumidifying regional export one side of this embodiment of expression distributes.If stably or transition ground under the few state of purge air quantity, turn round, then sometimes under the inadequate state of cooling of dehumidifying rotor 11 in purging regional 11c, move to removing wet zone 11a.Shown in figure 11; When the cooling in purging regional 11c is abundant; Dehumidifying regional export one side produces Temperature Distribution hardly; But when the cooling in purging regional 11c was insufficient, because of the thermal capacity of dehumidifying rotor 11 makes heat shift to removing wet zone 11a from purging regional 11c, dehumidifying regional export one side was high relatively near the temperature of the air that purges regional 11c.Under these circumstances, owing to the difference in air temperature Δ T that causes dehumidifying area entry 12a, dehumidifying regional export 13a because of the reason beyond the heat of adsorption _ProBecome big, so if infer the absolute humidity x of dehumidifying area entry air according to the air themperature in the pipeline of dehumidifying regional export one side _A, will be the absolute humidity x of dehumidifying area entry air _AInfer too much.Therefore, the temperature sensor being used to detect the air themperature after the dehumidifying is located at section and cuts apart the position (omitted diagram) of dehumidifying regional export one side of box 13 near regeneration zone 11b, and the temperature that can be used in this position probing is inferred humidity.

Figure 12 is the figure of the example that the position is set (1) of the expression temperature sensor that is used to detect the air themperature after the dehumidifying.If as the difference in air temperature Δ T that calculates dehumidifying area entry 12a, dehumidifying regional export 13a _ProThe time dehumidifying regional export temperature; Do not use the indicated value of temperature sensor of the pipe section of dehumidifying regional export 13a; And use insertion dehumidifying regional export one side shown in figure 12 indicated value near the temperature sensor of the box portion of regeneration zone 11b, then can eliminate the influence of shifting from the heat that purges regional 11c.In addition, in Figure 11, be owing to receive from the photothermal influence that removes the zoning demarcation strip between wet zone 11a and the regeneration zone 11b near the temperature height of regeneration zone 11b.Distance (for example the air line distance of temperature sensor and zoning demarcation strip is greatly more than 20cm) to a certain degree preferably is set between zoning demarcation strip and temperature sensor.

Figure 13 is the figure of the example that the position is set (2) of the expression temperature sensor that is used to detect the air themperature after the dehumidifying.Shown in figure 13; Be divided into two removing wet zone 11a; Through detecting temperature away from the outlet one duct portion that removes wet zone 11a2 of a side that purges regional 11c; Even under the inadequate situation of cooling in purging regional 11c, also can eliminate the influence of shifting from the heat that purges regional 11c, can prevent the absolute humidity x of dehumidifying area entry air _AInfer too much.

Variation: the measuring method of air quantity

Figure 14 is under the situation of expression through the air quantity of ventilating according to the deduction zoning of pressure reduction and temperature, the figure of the example of the position of detection pressure reduction and temperature.Shown in figure 14, measure if be arranged on each zone to temperature sensor and differential manometer dP, even then without air volume meter, also can obtain each regional ventilation air quantity with following formula.Because air volume meter is also the same with hygrometer etc., there be wrong the measurement and the problem of maintenance trouble, so from the viewpoint of the stability of wet-out property, the method with deduction can obtain better result sometimes.In addition, inferring under the situation of air quantity, can use following formula (4) according to pressure reduction and temperature.

Area * regional gateway pressure reduction/(coefficient a * regional gateway mean temperature+coefficient b) before ventilation air quantity=zone, zone

... formula (4)

Measurement for the air themperature of needed regional export in the calculating of formula (4); In regional export, need to measure the air themperature that does not have Temperature Distribution; But because particularly in purging regional 11c and regeneration zone 11b; Temperature Distribution in dehumidifying rotor export department is big, thus be difficult to mix, sometimes can not the correct measurement outlet temperature.Pipe passage is long more, this Temperature Distribution meeting Lock-out, if but the pipe passage lengthening, then the thermal loss because of causing from the pipeline heat release can not correctly be measured the outlet temperature that will measure originally sometimes.Therefore, for example can stir, as the regional export air, measure its temperature to the air after stirring to the regional export air.Such stirring can utilize damper, screw, cowling panel or the elbow etc. that are located in the regional export one side air flow circuit to carry out.Perhaps do not stir, can be in the box portion of regional export one side at certain intervals (on the angular direction, position) insert a plurality of temperature sensors, the temperature-averaging value that records as the regional export air themperature.

Variation: the temperature measuring positions of two phase process systems

Figure 15 is the figure that expression is used for the present invention the example of the temperature measuring positions under the situation of two phase process systems.In example shown in Figure 15, remove wet zone and be divided into first and remove wet zone 11a1 and second and remove wet zone 11a2, as the air of dehumidifying object in a single day passed through first remove wet zone 11a1 after, remove wet zone 11a2 through second again.That is, in example shown in Figure 15, as twice of the air of dehumidifying object through removing wet zone.Be used for method one under the situation of two phase process systems shown in Figure 15; Can remove the inlet humidity of the gateway temperature difference deduction first of wet zone 11a1 from first except that wet zone 11a1; Infer that from second except that the gateway temperature difference of wet zone 1,1a2 second removes the inlet humidity of wet zone 11a2, control.Remove under the equal substantially situation of wet zone 11a2 intake air temperature at first the outlet air temperature and second, can omit arbitrary side's temperature sensor except that wet zone 11a1.

Variation: the control of purge air quantity

Under the situation of the rotating speed that reduces dehumidifying rotor 11, because dehumidifying rotor 11 is elongated in the time that purges regional 11c delay, so can make dehumidifying rotor 11 coolings with purge air quantity still less.Particularly in the system that is used for a part dehumidifying air quantity form of purge air quantity; If owing to reduce purge air quantity then the air quantity that dehumidifies also must reduce; So preferably: regulate regeneration fan rotating speed (convertor controls (イ Application バ one タ system is driven)) and the aperture that is located at the damper in the purging stream etc., be controlled to and make purge air quantity and rotor speed proportional.The suitable purging face wind speed corresponding with suitable rotor speed calculates with the formula (5) shown in following.

Suitable purging face wind speed=specified purging face wind speed * suitable rotor speed/specified rotor speed

... formula (5)

Figure 16 is the figure of the variation of the expression handling process of using dehumidification system of the present invention.In table shown in Figure 16; The dehydrating unit represented of row A is that the flow direction of the dehumidified air in flow direction and the dehumidifying rotor 11 of purging air is identical; Different therewith; The flow direction of regeneration air is opposite with above-mentioned flow direction, and the dehydrating unit that row B representes is the flow direction with respect to the dehumidified air in the dehumidifying rotor 11, and the flow direction of regeneration air and purging air is opposite with the flow direction of above-mentioned dehumidified air.The dehydrating unit of row 1 expression is that used air converges at regeneration fan 31 upper reaches with used air in regeneration in purging, is used for regeneration.The dehydrating unit of row 2 expression is that used air and used air in regeneration are used for regeneration in the merge downstream of regeneration fan 31 in purging.The dehydrating unit of row 3 expressions is no longer to utilize after used air uses in regeneration in purging.The dehydrating unit of row 4 expressions is that used air uses regeneration after converging with the air that obtains from the outside in purging.But the control method of dehydrating unit of the present invention and dehydrating unit also can be used for having the dehydrating unit that does not have the handling process of expression at Figure 16.

Claims

1. dehydrating unit is characterized in that comprising:

Dehumidifying element is used for the air that passes through is dehumidified,

Partition member is divided into said Dehumidifying element: remove wet zone, be used to make air to pass through, the air that passes through is dehumidified as the dehumidifying object, and make through after the dew point of air in the scope of regulation; Regeneration zone is used for through making the air of regulating after the temperature through making the dehumidifying effect regeneration of said Dehumidifying element; And purge the zone, be used to utilize the air that passes through to make said Dehumidifying element heat radiation;

Change parts in zone distribute said Dehumidifying element according to the said reiteration that removes wet zone, said regeneration zone and said purging zone;

Temperature obtains parts, obtains the temperature of the air of said conduct dehumidifying object; And utilize through said temperature except that the air after the wet zone dehumidifying;

Infer that humidity obtains parts; According to the temperature of temperature and the air after the said dehumidifying of pre-prepd, said air as the dehumidifying object corresponding relation, obtain and obtain the dehumidify deduction humidity of air of object of the corresponding said conduct of said temperature that parts obtain by said temperature with the humidity of said air as the dehumidifying object; And

Suitable operating condition obtains parts; According to pre-prepd, the suitable operating condition of expression suitable running condition information with the relation of the humidity of said air as the object that dehumidifies; Acquisition and the corresponding said suitable operating condition of said deduction humidity that obtains by said deduction humidity acquisition parts; Under the state in the scope of dew point in said regulation of the air of said suitable operating condition after keeping said dehumidifying, it is minimum making the said Dehumidifying element needed heat of regenerating

Control said dehydrating unit according to said suitable operating condition.

2. dehydrating unit according to claim 1 is characterized in that,

Said Dehumidifying element is a dehumidifying rotor, through making the rotational speed of said dehumidifying rotor with the time per unit of setting, distributes said dehumidifying rotor according to the said reiteration that removes wet zone, said regeneration zone and said purging zone,

Said suitable operating condition obtains the said suitable running condition information of parts according to the relation of the humidity of the air of rotor speed said dehydrating unit, that expression is suitable and said conduct dehumidifying object; Obtain the said suitable rotor speed corresponding with said deduction humidity; Said suitable rotor speed is under the state in the scope of dew point in said regulation of the air after the said dehumidifying of maintenance; It is minimum making the said dehumidifying rotor needed heat of regenerating

Said zone change parts distribute said dehumidifying rotor through according to the said suitable rotor speed that obtains said dehumidifying rotor being rotated according to the said reiteration that removes wet zone, said regeneration zone and said purging zone.

3. dehydrating unit according to claim 2 is characterized in that, is controlled so as to said rotor speed as the said purge air quantity that purges the air quantity of regional air of importing to change pro rata.

4. according to each described dehydrating unit in the claim 1 to 3; It is characterized in that; Said suitable operating condition obtains parts according to the humidity of the said suitable operating condition of pre-prepd, expression, said air as the dehumidifying object and as the suitable running condition information of the relation of the dehumidifying air quantity that imports the said air quantity that removes the air in the wet zone, obtains and the said deduction humidity and the corresponding said suitable operating condition of said dehumidifying air quantity that are obtained the parts acquisition by said deduction humidity.

5. dehydrating unit according to claim 4 is characterized in that also comprising:

Pressure reduction obtains parts, and the acquisition importing is said to remove wet zone air before and pass through said pressure reduction except that the air behind the wet zone; And

Infer that air quantity obtains parts, according to the corresponding relation of pre-prepd said pressure reduction and said dehumidifying air quantity, the said deduction dehumidifying air quantity that removes the air of wet zone of the importing that the said pressure reduction that obtains and obtained by said pressure reduction acquisition parts is corresponding,

Said suitable operating condition obtains parts and obtains to obtain the corresponding said suitable operating condition of said deduction dehumidifying air quantity that parts obtain with the said deduction humidity that is obtained the parts acquisition by said deduction humidity and by said deduction air quantity.

6. according to each described dehydrating unit in the claim 1 to 3, it is characterized in that,

Utilize regenerative heater to regulate the temperature of the air that imports said regeneration zone, the feasible temperature that imports the air of said regeneration zone becomes the regeneration temperature of setting,

Said suitable operating condition obtains the said suitable running condition information of parts according to the relation of the humidity of the air of regeneration temperature said dehydrating unit, that expression is suitable and said conduct dehumidifying object; Obtain the said suitable regeneration temperature corresponding with said deduction humidity; Said suitable regeneration temperature is under the state in the scope of dew point in said regulation of the air after the said dehumidifying of maintenance; It is minimum making the said Dehumidifying element needed heat of regenerating

Said regenerative heater is regulated the temperature of the air that imports said regeneration zone, and the feasible temperature that imports the air of said regeneration zone is said suitable regeneration temperature.

7. according to each described dehydrating unit in the claim 1 to 3, it is characterized in that said temperature obtains the temperature that parts obtain the air of said conduct dehumidifying object; And in the air after said dehumidifying, in temperature except that the air after the said dehumidifying in the wet zone near said regeneration zone.

8. the control method of a dehydrating unit is characterized in that,

Said dehydrating unit comprises: partition member; Be divided into the dehumidifying rotor that is used for the air that passes through dehumidifies: remove wet zone; Be used to make air to pass through, the air that passes through dehumidified as the dehumidifying object, and make through after the dew point of air in the scope of regulation; Regeneration zone is used for through making the air of regulating after the temperature through making the dehumidifying effect regeneration of said dehumidifying rotor; And purge the zone, be used to utilize the air that passes through to make said dehumidifying rotor heat radiation; And zone change parts, through rotating speed said dehumidifying rotor is rotated with the time per unit set, distribute said dehumidifying rotor according to the said reiteration that removes wet zone, said regeneration zone and said purging zone,

The control method of said dehydrating unit is carried out following steps:

Temperature obtains step, obtains the temperature of the air of said conduct dehumidifying object; And utilize through said temperature except that the air after the wet zone dehumidifying;

Infer that humidity obtains step; Based on the corresponding relation of pre-prepd, said air themperature and the air themperature after the said dehumidifying as the dehumidifying object, obtain the dehumidify deduction humidity of air of object of the said conduct corresponding with the said temperature that obtains in said temperature to obtain in the step with the humidity of said air as the dehumidifying object;

Suitable operating condition obtains step; According to pre-prepd, the suitable operating condition of expression suitable running condition information with the relation of the humidity of said air as the object that dehumidifies; Obtain and the corresponding said suitable operating condition of said deduction humidity that obtains in said deduction humidity to obtain in the step; Under the state in the scope of dew point in said regulation of the air of said suitable operating condition after keeping said dehumidifying, it is minimum making the said dehumidifying rotor needed heat of regenerating; And

The control step according to said suitable operating condition, is controlled in the temperature of the rotating speed of the dehumidifying rotor of said dehydrating unit and said regeneration air any at least.