CN104699147A - Device and method for managing dew point temperature of dry room - Google Patents
Device and method for managing dew point temperature of dry room Download PDFInfo
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- CN104699147A CN104699147A CN201410730216.3A CN201410730216A CN104699147A CN 104699147 A CN104699147 A CN 104699147A CN 201410730216 A CN201410730216 A CN 201410730216A CN 104699147 A CN104699147 A CN 104699147A
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- air
- dewpoint temperature
- hothouse
- heat exchange
- exchange department
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0008—Control or safety arrangements for air-humidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40086—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by using a purge gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
Abstract
The present invention relates to a device for managing the dew point temperature of a dry room and a method for managing the same. The device comprises a dew point temperature control device of the dry room with a front-end heat exchange unit, a rear-end heat exchange unit, a circulation fan, a regeneration heater unit and a discharge fan. The device comprises a temperature sensor for measuring absolute humidity of the front-end heat exchange unit, a dew point temperature sensor for measuring the dew point temperature of the dry room, a control unit for adjusting the amount of wind supplied by the circulation fan to the dehumidification rotor such that the dew point temperature measured by the dew point temperature sensor is maintained at a preset target value. When the amount of wind supplied by the circulation fan is at the lowest level, reducing operation of the front-end heat exchange unit until the measured absolute humidity becomes a preset reference humidity.
Description
Technical field
The present invention relates to control device and the control method of dew point (dew point) temperature in hothouse, particularly relate to and control be supplied to the air air quantity of hothouse from circulating fan thus the dewpoint temperature in hothouse managed into dewpoint temperature control device and the control method thereof of the hothouse of predetermined target value by dehumidifying rotor.
Background technology
Along with the use of the such as mobile electronic product of intelligent instrument increases, the importance of secondary cell also increases thereupon.The atmosphere suitably maintaining used lithium and electrolytic solution etc. is needed in the production of this secondary cell.
Such as, the manufacturing process of lithium ion battery needs having relative humidity to be carry out in the hothouse (dry room) of less than 2%.As mentioned above, the dewpoint temperature in hothouse maintained and manage into the desired value temperature meeting job behavior.
Such as, in No. 0477087th, the registered patent of the applicant, traditional hothouse control device is disclosed.As known in this earlier application patent, by circulating fan by air from suction front end, outside heat exchange department time, front end heat exchange department carries out heat interchange to air and makes it cool, and makes carrying out dehumidifying and being provided to hothouse while dehumidifying rotor through the air of cooling by circulating fan.Dehumidifying rotor is divided into multiple region, and first area is used for the dehumidifying of air, and second area is for the air process being used for carrying out heating in the regeneration heating part of rear end, and the 3rd region is for discharging the air through heating.Air through the 3rd region is discharged by extraction fan.
In addition, as another example, in No. 1064175th, Ebrean Registered Patent, regenerative heater is operated into the regeneration temperature corresponding with the absolute temperature of the air being supplied to dehumidifying rotor, wherein, by comparing the regeneration temperature adjusting regenerative heater to dew point temperature measurements value and reference value.
When these in first patent, by adjustment regenerative heater control the temperature of air to be heated to manage the dewpoint temperature in hothouse.But, this also exists following problem, namely, need with running at full capacity circulating fan so that the flow through dehumidifying rotor is maintained in maximum to maintain the amount that is supplied to the air of hothouse equably, and because can carry out controlling at as 160 ~ 180 DEG C of the zeolite of the material of dehumidifying rotor or the desirable regeneration temperature of molecular sieve so the stability of dewpoint temperature is by the impact of load change exceeding.Because when from also needing when outside leaked-in air relatively dry to maintain maximum flow, therefore result in the problem of waste energy.
In order to solve problem as above, as another example, disclose in KR published patent 2011-0040660 and the amount of moisture of the air in the middle dehumidifying of the rotor that dries (dehumidifying rotor) is measured and controlled to be provided to the technology of the flow of the extraneous air of the regeneration side of the rotor that dries according to this amount of moisture.But, in this conventional art, the flow of regeneration side instead of the flow of adjustment process side is adjusted according to the amount of moisture of the process side of the rotor that dries (dehumidifying rotor), and only adjustment regenerates the flow of side when not considering the absolute humidity from the air of front end heat exchange department supply, therefore substantially there is deviation in dewpoint temperature, faces precision thus and effectively manage the limit of dewpoint temperature.In addition, for regulating the flow of regeneration side, in the low-down situation of the absolute humidity of the air being supplied to the rotor that dries, also only control according to dewpoint temperature the flow regenerating side, and the running of front end heat exchange department of not giving chapter and verse is to reduce the function of energy consumption.
At first technical literature
Patent documentation
No. 0477087th, Ebrean Registered Patent (2005.03.17.)
No. 1064175th, Ebrean Registered Patent (2011.09.15.)
No. 2011-0040660th, Ebrean Registered Patent (2011.04.20.)
Summary of the invention
Therefore, the present invention proposes to solve the problem of above-mentioned conventional art, and its object is to provide can by considering the absolute humidity of the air flowing into dehumidifying rotor and coming accurate from the absolute humidity of the air of dehumidifying rotor supply and effectively manage dewpoint temperature control device and the control method thereof of the hothouse of the dewpoint temperature of hothouse.
In addition, another object of the present invention is to provide by regulating the dewpoint temperature control device and the control method thereof that are supplied to the hothouse of the air quantity (and the air quantity of the air regenerated non-regulated dehumidifying rotor) of the air of dehumidifying rotor from circulating fan.
In addition, dewpoint temperature control device and the control method thereof of the hothouse of energy consumption is reduced another object of the present invention is to be provided in the drying from the amount of moisture (absolute humidity) of the air of outside suction is low by the air quantity of decreasing amount adjustment circulating fan and the running of front end heat exchange department.
The dewpoint temperature control method in the dewpoint temperature control device of hothouse is related to according to the dewpoint temperature control method of hothouse of the present invention, wherein, the dewpoint temperature control device of described hothouse comprises and carries out heat interchange with the front end heat exchange department making it cool to the air sucked from outside, to the dehumidifying rotor that the air cooled in the heat exchange department of described front end dehumidifies in its first area, heat interchange is carried out with the rear end heat exchange department making it cool to the air through described dehumidifying rotor, extraneous air is sucked described front end heat exchange department and the described air through cooling is provided to described dehumidifying rotor and makes the air dehumidified by described dehumidifying rotor be supplied to the circulating fan of hothouse via described rear end heat exchange department, to as the air branch being provided to described dehumidifying rotor by described circulating fan, air through the second area of described dehumidifying rotor carries out heating the regeneration heating part for regeneration, and the extraction fan of the air of discharge by the regeneration of described regeneration heating part and through the 3rd region of described dehumidifying rotor, wherein, the dewpoint temperature control method of described hothouse comprises: the first step measuring the dewpoint temperature of described hothouse in dewpoint temperature sensor, the second step of the absolute humidity of the air sucking described front end heat exchange department is measured in temperature-sensitive sticker, in control part, regulate the supply air quantity being provided to the described circulating fan of described dehumidifying rotor the described dewpoint temperature measured to be maintained in the third step of predetermined target value, and when the supply air quantity of described circulating fan is in minimum state, in described control part, reduce the running rate of described front end heat exchange department until the described absolute humidity measured reaches the 4th step of predetermined reference humidity.
In the present invention, also comprise: after described third step, in described control part, adjust capacity for wind in described extraction fan so that the described dewpoint temperature measured is maintained in described desired value.
In the present invention, in described third step, when the described absolute humidity measured is less than the lower limit of predetermined reference humidity, stop the running of described front end heat exchange department under the supply air quantity of described circulating fan is in minimum state.
In the present invention, in described third step, when the described absolute humidity measured is less than the lower limit of predetermined reference humidity, in described control part, reduce the supply air quantity of described circulating fan.
In addition, relate to comprising according to the dewpoint temperature control device of hothouse of the present invention and heat interchange is carried out with the front end heat exchange department making it cool to the air sucked from outside, to the dehumidifying rotor that the air cooled in the heat exchange department of described front end dehumidifies in its first area, heat interchange is carried out with the rear end heat exchange department making it cool to the air through described dehumidifying rotor, extraneous air is sucked described front end heat exchange department and the described air through cooling is provided to described dehumidifying rotor and makes the air dehumidified by described dehumidifying rotor be supplied to the circulating fan of hothouse via described rear end heat exchange department, to as the air branch being provided to described dehumidifying rotor by described circulating fan, air through the second area of described dehumidifying rotor carries out heating the regeneration heating part for regeneration, and the dewpoint temperature control device of the hothouse of the extraction fan of the air of discharge by the regeneration of described regeneration heating part and through the 3rd region of described dehumidifying rotor, wherein, the dewpoint temperature control device of described hothouse comprises the temperature-sensitive sticker measuring the absolute humidity sucking described front end heat exchange department, measure the dewpoint temperature sensor of the dewpoint temperature in described hothouse, and adjustment is supplied to the supply air quantity of the described circulating fan of described dehumidifying rotor the dewpoint temperature measured in described dewpoint temperature sensor to be maintained in the control part of predetermined target value, wherein, when the supply air quantity of described circulating fan is in minimum state, reduce the running rate of described front end heat exchange department, until the described absolute humidity measured reaches predetermined reference humidity.
In the present invention, also comprise the extraction fan of externally discharging from described regeneration heating part through the air in the 3rd region of described dehumidifying rotor, and described control part regulates the capacity for wind of described extraction fan so that the described dewpoint temperature measured is maintained in predetermined target value.
In the present invention, described control part and the supply air quantity of set described circulating fan regulate the capacity for wind of described extraction fan accordingly.
In the present invention, the described absolute humidity that described control part measures under the supply air quantity of described circulating fan is in minimum state stops the running of described front end heat exchange department when being less than the lower limit of predetermined reference humidity.
In the present invention, described control part reduces the supply air quantity of described circulating fan while described dewpoint temperature is maintained in described desired value in described control part when the described absolute humidity measured is less than the lower limit of predetermined reference humidity.
According to the present invention, in order to the dewpoint temperature of hothouse manages, not only regulate in dehumidifying rotor the air quantity of the air regenerated but also consider that the temperature of the air in the temperature of the air before and after dehumidifying rotor and regeneration heating part regulates the air quantity of the air being supplied to dehumidifying rotor, the deviation of dewpoint temperature can not occur thus and reliably can manage the dewpoint temperature of hothouse.
In addition, be different from the conventional art regulating the air regenerated by dehumidifying rotor, according to the present invention, regulate dehumidifying in dehumidifying rotor by regulating the supply air quantity of circulating fan and be directly provided to the air quantity of the air of hothouse, therefore, it is possible to more critically carry out dewpoint temperature management.
In addition, according to the present invention, when the drying that the absolute humidity of the air sucked from outside is low, the consumption of operating cost can be reduced by the running of down-regulation front end heat exchange department.As mentioned above, controlled by the running of the decrement of front end heat exchange department and the energy consumption brought reduces, the reduction for the energy consumption needed for the running of circulating fan and rear end heat exchange department can be brought, thus can integrally minimum energy losses.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the dewpoint temperature control device of hothouse according to the embodiment of the present invention.
Fig. 2 is the process flow diagram of the dewpoint temperature control method of the hothouse illustrated according to the embodiment of the present invention.
Fig. 3 is the process flow diagram of the dewpoint temperature control method by the hothouse that regulates the supply air quantity of circulating fan to carry out illustrated according to the embodiment of the present invention.
Fig. 4 is the process flow diagram of the dewpoint temperature control method of the hothouse undertaken by the running of adjustment front end heat exchange department illustrated according to the embodiment of the present invention.
Embodiment
Below, with reference to the accompanying drawings the preferred embodiment of the present invention is described.In addition, when present invention is described, if be judged as that the specific descriptions for related known function or structure unnecessarily obscure main idea of the present invention, then omit it and describe in detail.
Fig. 1 is the structural drawing of the dewpoint temperature control device according to hothouse of the present invention.
With reference to Fig. 1, comprise humidity sensor 110, dewpoint temperature sensor 120 and control part 130 according to the dewpoint temperature control device 100 of hothouse of the present invention.The dewpoint temperature control device 100 of this hothouse is preferably applied in hothouse control system.
Usually, hothouse control system is made up of multiple parts described later and device in certain housing, and through being supplied to hothouse 70 by various stream cool, remove the technique of foreign matter, dehumidifying, heating etc. to the air sucked from outside after.The object of the invention is to precision and effectively manage the dewpoint temperature of this hothouse 70.
Extraneous air is inhaled into by the running of circulating fan 20 and is sent to front end heat exchange department 10.Front end heat exchange department 10 uses internal ramp to purify to remove foreign matter to air, and uses internal cooling coil pipe that the air sucked is carried out to heat interchange and cools to make it.Circulating fan 20 is arranged on the outlet side of front end heat exchange department 10.As mentioned above, circulating fan 20 is configured to sucked by extraneous air and be sent to front end heat exchange department 10, and the air through cooling exported from front end heat exchange department 10 is supplied to the dehumidifying rotor 30 of rear end.The supply of this air is undertaken by certain stream.This also will be applicable to stream described later.
Air through cooling is fed into dehumidifying rotor 30 by the running of circulating fan 20, now, the air through cooling is provided to the first area of dehumidifying rotor 30 to dehumidify.Dehumidifying rotor 30 is divided into multiple region, and regional has different functions.Such as, first area, second area and the 3rd region can be divided into, wherein, carry out the dehumidifying of air in the first region, in the second area the efficiency increasing first area is cooled to dehumidifying rotor 30, make behind regeneration heating part 50, to carry out heat interchange with dehumidifying rotor 30 to be adjusted to the temperature being applicable to dehumidifying through the air of second area in the 3rd region.Now, be substantially provided to first area to dehumidify from circulating fan 20 air out, but the part in this air can be supplied to by branch the regeneration heating part 50 being arranged at rear end via second area.That is, second area is communicated with regeneration heating part 50.This circulating fan 20 operates with the running rate of preset range.Such as, circulating fan 20 is to operate from minimum running rate to transport maximum rate.Thus, the supply air quantity in circulating fan 20 is also set to be low to moderate most maximum.
Carried out the dehumidifying of air by the rotary-type dehumidification mode of dry type in dehumidifying rotor 30.These multiple regions are communicated to corresponding stream in the rotation of dehumidifying rotor.Air through the first area of dehumidifying rotor 30 is sent to rear end heat exchange department 40 along corresponding stream.The temperature of rear end heat exchange department 40 to the air through dehumidifying adjusts.Air through rear end heat exchange department 40 is supplied to hothouse 70 via corresponding stream.
Hothouse 70 relative humidity is maintained meet corresponding technique predetermined target value within the scope of.Such as, when the lithium for the treatment of of battery, relative humidity is maintained less than 2%.As mentioned above, for being maintained in target range by the internal relative humidity of hothouse 70, the management of dewpoint temperature is very important.The object of the present invention is to provide the device and method that the dewpoint temperature for hothouse 70 manages.A part in the inner air of hothouse 70 can also be discharged to outside.
In addition, when air is provided to the first area of dehumidifying rotor 30 from circulating fan 20, branch from this air the air being provided to second area will be provided to the regeneration heating part 50 of rear end.Regeneration heating part 50 is configured to be provided to the 3rd region of dehumidifying rotor 30 after provided air heat to specified temp.Sucked the air of heating in regeneration heating part 50 by the running of the extraction fan 60 of rear end, thus the air through heating is flowed through the 3rd region.Thus, in regeneration heating part 50, the air of heating is adjusted temperature while the 3rd region through dehumidifying rotor 30.That is, in regeneration heating part 50, the air of heating is captured and is removed the moisture that dehumidified rotor 30 absorbs.By this process, actual temperature of carrying out the first area of dehumidifying in dehumidifying rotor 30 is raised.
Reference comprises the operation process of the hothouse management system of this structure, drive circulating fan 20 and extraction fan 60, and extraneous air is inhaled into and is sent to front end heat exchange department 10 when driving first in the early stage by the driving of circulating fan 20.In front end heat exchange department 10, remove the foreign matter in air and cool.A part for air from front end heat exchange department 20 discharge like this is provided to the first area of dehumidifying rotor 30 by circulating fan 20, and another part is provided to the second area of dehumidifying rotor 30.Air is dehumidified while first area.Air through dehumidifying is sent to rear end heat exchange department 40 through corresponding stream.Hold the heat interchange carrying out air in heat exchange department 40 in this post.This rear end heat exchange department 40 carries out cooling or heating according to the condition of air.Thus, finally the temperature of air is regulated, and the air of upon mediation is supplied to hothouse 70.The humidity of hothouse 70 is maintained in desired value by this process.
In addition, the air being provided to the second area of dehumidifying rotor 30 is sent to regeneration heating part 50 by the suction of extraction fan 60 through second area, wherein, air relatively improves its temperature thus at the part reception heat of the dehumidifying rotor 30 of temperature rising from the 3rd region while second area.Regeneration heating part 50 admission of air also heats to make it reach relatively-high temperature to it with uniform temperature, and the air of this high temperature is improving the temperature in the 3rd region and removing the moisture of dehumidifying rotor 30 while the 3rd region.Externally discharged by extraction fan 60 by the air in the 3rd region of dehumidifying rotor 30.
In the dewpoint temperature control device 100 of the hothouse applied in the hothouse management system of structure described above, in the temperature-sensitive sticker 110 of rear end being arranged at front end heat exchange department 10, measure the absolute humidity of the air sucking front end heat exchange department 10.As an example, temperature-sensitive sticker 110 can also measure the absolute humidity of the air completing heat interchange in front end heat exchange department 10.In addition, dewpoint temperature sensor 120 is arranged in hothouse 70 to measure the dewpoint temperature in hothouse 70.
The absolute humidity values of the air measured in humidity sensor 110 and dewpoint temperature sensor 120 respectively by mode as above and dew point temperature value are input to control part 130 in real time.Control part 130 adjusts based on the supply air quantity of these measured values to circulating fan 20 dewpoint temperature controlling hothouse 70.Particularly, to the supply air quantity being provided to dehumidifying rotor 30 from circulating fan 20, first control part 130 regulates that the dewpoint temperature of the hothouse measured in dewpoint temperature sensor 120 70 is maintained in predetermined target value.This can be realized by the rotating speed of the fan wing adjusting circulating fan 20.For this reason, the electric current that the fan wing that controller 130 is configured to be applied for adjusting circulating fan 20 rotates.
Now, if the supply air quantity of circulating fan 20 is adjusted to predetermined minimum state, then in control part 130, reduce the running of front end heat exchange department 10, until the absolute humidity measured in temperature-sensitive sticker 110 reaches predetermined reference humidity.In the present embodiment, the dewpoint temperature of hothouse 70 is subject to the impact of the absolute humidity (amount of moisture) of the air sucking front end heat exchange department 10.Therefore, when the supply air quantity by adjusting circulating fan 20 manages dewpoint temperature, when also dewpoint temperature can be maintained in desired value when the supply air quantity of circulating fan 20 is adjusted to minimum state, then the absolute humidity for the extraneous air flowing into front end heat exchange department 10 can be reduced to reference value.For this reason, running rate can be reduced reduce the absolute humidity for the air flowing into front end heat exchange department 10, until it reaches predetermined reference humidity.In addition, in other embodiments, under the supply air quantity of circulating fan 20 is minimum state, if the absolute humidity measured in temperature-sensitive sticker 110 is less than the lower limit of predetermined reference humidity, then can stop the running of front end heat exchange department 10 in controller 130.If dewpoint temperature is also managed into desired value between circulating fan 20 is with minimum state on-stream period, the absolute humidity of the air then in front end heat exchange department 10 is lower than the lower limit of reference value, even if stop the running of front end heat exchange department 10 also dewpoint temperature can be continued manage into this desired value.That is, under the minimum running rate of circulating fan 20, the absolute humidity flowing into the air of front end heat exchange department 10 be also to a certain degree below, therefore still dewpoint temperature can be maintained in desired value.
In addition, as another embodiment, even the supply air quantity of circulating fan 20 also can be reduced the absolute humidity measured in temperature-sensitive sticker 110 is less than the lower limit of predetermined reference humidity in limit dewpoint temperature being managed into desired value.Now, according to different situations, can according to dewpoint temperature with minimum air quantity operation cycle fan 20.Even this is equivalent to the situation that also dewpoint temperature can be managed into desired value when the absolute humidity of the air sucked from outside is low with minimum state operation cycle fan 20 (that is, maintaining minimum air quantity).
In addition, in another embodiment of the invention, when adjusting the supply air quantity of circulating fan 20 in control part 130, the capacity for wind of extraction fan 60 can also be adjusted.That is, the air quantity adjustment of circulating fan 20 and extraction fan 60 can be implemented simultaneously, or only implement the air quantity adjustment of one of them.Alternatively, both air quantity adjustment can be implemented successively, or the air quantity adjustment both implementing overlappingly at least partially.When the supply air quantity by means of only adjustment circulating fan 20 is difficult to dewpoint temperature be managed in target range rapidly, can by also coming more fast the air quantity adjustment of extraction fan 60 and easily implementing the management of dewpoint temperature.The air quantity adjustment of circulating fan 20 and extraction fan 60 can be implemented by the rotating speed of the fan wing in adjustment circulating fan 20 and extraction fan 60.
Fig. 2 is the process flow diagram of the dewpoint temperature control method of the hothouse illustrated according to the embodiment of the present invention.
With reference to Fig. 2, at front end heat exchange department 10, dehumidifying rotor 30, rear end heat exchange department 40, circulating fan 20, in the hothouse management system of regeneration heating part 50 and extraction fan 60, the dewpoint temperature control method of hothouse according to the embodiment of the present invention measures the dewpoint temperature (S101) in hothouse 70 in the dewpoint temperature sensor 120 being arranged at hothouse 70, and in the humidity sensor 110 of rearward end being arranged at front end heat exchange department 10, measure the absolute humidity (S103) of the air sucking this front end heat exchange department 10, wherein, front end heat exchange department 10 carries out heat interchange to the air sucked from outside and cools to make it, dehumidifying rotor 30 dehumidifies to the air of cooling in front end heat exchange department 10 in the first region, rear end heat exchange department 40 carries out heat interchange to the air through dehumidifying rotor 30 and cools to make it, extraneous air is sucked front end heat exchange department 10 and the air through cooling is provided to dehumidifying rotor 30 and makes the air dehumidified by dehumidifying rotor 30 be supplied to hothouse 70 via rear end heat exchange department 40 by circulating fan 20, regeneration heating part 50 is to from being provided to the air branch of dehumidifying rotor 30 by this circulating fan and the air through the second area of dehumidifying rotor 30 heats for regeneration, the air in three region of extraction fan 60 discharge through regeneration in heating part 50 and through dehumidifying rotor 30.This S101, S103 step can perform simultaneously or can perform successively.These steps perform independently of one another.The absolute humidity measured in this way and dewpoint temperature are sent to control part 130 in real time.
In control part 130, regulate the supply air quantity of circulating fan 20 so that the above-mentioned dewpoint temperature measured is maintained in predetermined target value (S105).That is, in order to regulate the supply air quantity of air that supplies from circulating fan 20 dewpoint temperature of hothouse 70 to be maintained and manage into desired value, according to the supply air quantity in the dewpoint temperature controlled circulation fan 20 measured in real time in dewpoint temperature sensor 120.The control of this supply air quantity is realized by the rotating speed of the fan wing regulating circulating fan 20.
Subsequently, along with the adjustment of the supply air quantity of this circulating fan 20, when the supply air quantity of circulating fan 20 reaches minimum (minimum) state (S107), reduce the running rate of front end heat exchange department 10 until the absolute humidity measured in real time in humidity sensor 110 reaches predetermined reference humidity (S109).This is as the one in feature of the present invention, manage for dewpoint temperature for the supply air quantity by adjustment circulating fan 20, even if the supply air quantity of circulating fan 20 be in minimum state dewpoint temperature be also managed within desired value time, as long as dewpoint temperature can be managed within desired value, so can reduce the running rate of front end heat exchange department 10 further because the absolute humidity sucking the air of front end heat exchange department 10 is less than reference value.The running of front end heat exchange department 10, for reducing the absolute humidity of leaked-in air, when therefore dewpoint temperature is also managed into desired value when without the need to reducing absolute humidity further, can reduce the running rate of front end heat exchange department 10.Thus, regulated by the supply air quantity of circulating fan 20 and reduce the running rate of front end heat exchange department 10, energy consumption can be reduced fully.Herein, S107 step and S109 step are carried out under dewpoint temperature is managed into the prerequisite of desired value.Namely, final purpose of the present invention dewpoint temperature is maintained and manages into desired value, therefore as S105 step, regulating the supply air quantity of circulating fan 20 to be maintained in the process of desired value by dewpoint temperature, as S107 step, judge whether the supply air quantity of circulating fan 20 reaches minimum state, and as S109, adjust the running rate of front end heat exchange department 10.In the implementation of S107 step and S109 step, if preferably stop these processes during dewpoint temperature breakaway value.
In addition, if determine the supply air quantity of circulating fan 20 according to dewpoint temperature, then the capacity for wind of extraction fan 60 is set accordingly with the supply air quantity of this circulating fan 20.Such as, decide according to the supply air quantity increased or reduce how many circulating fans 20 capacity for wind reducing or increase how many extraction fans 60.Thereby, it is possible to the air quantity organically arranged each other between circulating fan 20 and extraction fan 60 is to manage dewpoint temperature.
Fig. 3 is the process flow diagram of the dewpoint temperature control method of the hothouse illustrated according to another embodiment of the present invention.
With reference to Fig. 3, for the supply air quantity of controlled circulation fan 20 the dewpoint temperature measured in dewpoint temperature sensor 120 is maintained in for predetermined target value, if the absolute humidity measured in humidity sensor 110 is less than the lower limit (S201) of predetermined reference humidity, then determine whether dewpoint temperature is managed into predetermined target value (S203), then reduce the supply air quantity (S205) of circulating fan 20 when dewpoint temperature is managed into desired value.That is, dewpoint temperature can be reduced further when the absolute humidity of the air sucking front end heat exchange department 10 is less than the lower limit of reference humidity, thus carry out desired value management more simply.Such as, in situation air dried as winter, because the amount of moisture (that is, absolute humidity) in the air sucked is little, so the humidity amount be provided in the air of hothouse 70 also can decrease.Therefore, even if reduce the air quantity of the air provided from circulating fan 20, the management of certain dewpoint temperature can also be carried out because absolute humidity is low.
Fig. 4 shows the process flow diagram of the dewpoint temperature control method of the hothouse according to another embodiment again of the present invention.
With reference to Fig. 4, in the present invention for regulate the supply air quantity of circulating fan 20 according to dewpoint temperature for, when the supply air quantity of circulating fan 20 operates with minimum state (S301), if the absolute humidity measured in real time from humidity sensor 110 is less than the lower limit (S303) of predetermined reference humidity, then stop the running (S305) of front end heat exchange department.Namely, when the supply air quantity of circulating fan 20 is in minimum state, if the absolute humidity flowing into the air of front end heat exchange department 10 is less than the lower limit of reference humidity, dewpoint temperature will inevitably be managed into desired value, so without the need to the front end heat exchange department 10 that operates.Now, even the lower limit of reference humidity should be configured under the minimum operating condition of circulating fan 20 also by the value of dewpoint temperature management within desired value.Thus, by not driving front end heat exchange department 10 to reduce energy consumption.
As mentioned above, the present invention in hothouse management system by considering that the absolute humidity of the air sucking front end heat exchange department comes accurate and effectively manages the dewpoint temperature of hothouse.Thus, control the dewpoint temperature of hothouse compared to the temperature by controlling regeneration heating part or control to be provided to via the 3rd region of dehumidifying rotor from outside the conventional art of the air air quantity regenerating heating part according to the dewpoint temperature of hothouse, the precision of dewpoint temperature management can be improved and can prevent the deviation of dewpoint temperature from occurring when managing.
In addition, compared to conventional art, the energy dissipation caused because of the driving of circulating fan can be reduced by the air quantity reducing the air being directly provided to hothouse, and be there is the advantage being reduced energy consumption by the running rate of reduction front end heat exchange department.
As mentioned above, although pass through preferred embodiment to invention has been detailed description, should be clear and definite, the present invention is not limited to the content of this embodiment.Those skilled in the art should be clear and definite, although do not point out in embodiments, but can imitate the present invention or improve within the scope of the record of the claim of enclosing, and these imitate or improvement also should fall within the technical scope of the present invention.Therefore, the technical protection scope that the present invention is real should be defined by the technological thought of the claims of enclosing.
Symbol description
10: front end heat exchange department 20: circulating fan
30: dehumidifying rotor 40: rear end heat exchange department
50: regeneration heating part 60: extraction fan
70: hothouse 110: humidity sensor
120: dewpoint temperature sensor 130: control part
Claims (9)
1. a dewpoint temperature control method for hothouse, relates to the dewpoint temperature control method in the dewpoint temperature control device of hothouse, and wherein, the dewpoint temperature control device of described hothouse comprises:
Front end heat exchange department, carries out heat interchange to the air sucked from outside and cools to make it;
Dehumidifying rotor, dehumidifies to the air cooled in the heat exchange department of described front end in its first area;
Rear end heat exchange department, carries out heat interchange to the air through described dehumidifying rotor and cools to make it;
Circulating fan, sucks described front end heat exchange department by extraneous air and the air through cooling is provided to described dehumidifying rotor and makes the air dehumidified by described dehumidifying rotor be supplied to hothouse via described rear end heat exchange department;
Regeneration heating part, heat for regeneration to the air of the second area through described dehumidifying rotor, the air wherein through the second area of described dehumidifying rotor is the air branch being provided to described dehumidifying rotor by described circulating fan; And
Extraction fan, discharges by the regeneration of described regeneration heating part and the air in the 3rd region through described dehumidifying rotor,
Wherein, the dewpoint temperature control method of described hothouse comprises:
The first step of the dewpoint temperature of described hothouse is measured in dewpoint temperature sensor;
The second step of the absolute humidity of the air sucking described front end heat exchange department is measured in temperature-sensitive sticker;
In control part, regulate the supply air quantity being provided to the described circulating fan of described dehumidifying rotor the described dewpoint temperature measured to be maintained in the third step of predetermined target value; And
When the supply air quantity of described circulating fan is in minimum state, in described control part, reduce the running rate of described front end heat exchange department until the described absolute humidity measured reaches the 4th step of predetermined reference humidity.
2. the dewpoint temperature control method of hothouse as claimed in claim 1, also comprises:
After described third step, in described control part, adjust capacity for wind in described extraction fan so that the described dewpoint temperature measured is maintained in described desired value.
3. the dewpoint temperature control method of hothouse as claimed in claim 1, wherein, in described third step, when the described absolute humidity measured under the supply air quantity of described circulating fan is in minimum state is less than the lower limit of predetermined reference humidity, stop the running of described front end heat exchange department.
4. the dewpoint temperature control method of hothouse as claimed in claim 1, wherein, in described third step, when the described absolute humidity measured is less than the lower limit of predetermined reference humidity, in described control part, reduce the supply air quantity of described circulating fan.
5. a dewpoint temperature control device for hothouse, relates to the dewpoint temperature control device of hothouse, and wherein, the dewpoint temperature control device of described hothouse comprises:
Front end heat exchange department, carries out heat interchange to the air sucked from outside and cools to make it;
Dehumidifying rotor, dehumidifies to the air cooled in the heat exchange department of described front end in its first area;
Rear end heat exchange department, carries out heat interchange to the air through described dehumidifying rotor and cools to make it;
Circulating fan, sucks described front end heat exchange department by extraneous air and the air through cooling is provided to described dehumidifying rotor and makes the air dehumidified by described dehumidifying rotor be supplied to hothouse via described rear end heat exchange department;
Regeneration heating part, heat for regeneration to the air of the second area through described dehumidifying rotor, the air wherein through the second area of described dehumidifying rotor is the air branch being provided to described dehumidifying rotor by described circulating fan; And
Extraction fan, discharges by the regeneration of described regeneration heating part and the air in the 3rd region through described dehumidifying rotor,
Wherein, the dewpoint temperature control device of described hothouse comprises:
Temperature-sensitive sticker, measures the absolute humidity sucking described front end heat exchange department;
Dewpoint temperature sensor, measures the dewpoint temperature in described hothouse; And
Control part, adjustment is supplied to the supply air quantity of the described circulating fan of described dehumidifying rotor so that the dewpoint temperature measured in described dewpoint temperature sensor is maintained in predetermined target value, wherein, when the supply air quantity of described circulating fan is in minimum state, reduce the running rate of described front end heat exchange department until the described absolute humidity measured reaches predetermined reference humidity.
6. the dewpoint temperature control device of hothouse as claimed in claim 5, wherein,
Described control part regulates the capacity for wind of described extraction fan so that the described dewpoint temperature measured is maintained in predetermined target value.
7. the dewpoint temperature control device of hothouse as claimed in claim 6, wherein, described control part regulates the capacity for wind of described extraction fan accordingly with the supply air quantity of set described circulating fan.
8. the dewpoint temperature control device of hothouse as claimed in claim 5, wherein, the described absolute humidity that described control part measures under the supply air quantity of described circulating fan is in minimum state stops the running of described front end heat exchange department when being less than the lower limit of predetermined reference humidity.
9. the dewpoint temperature control device of hothouse as claimed in claim 5, wherein, described control part reduces the supply air quantity of described circulating fan while described dewpoint temperature is maintained in described desired value in described control part when the described absolute humidity measured is less than the lower limit of predetermined reference humidity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130150255A KR101357858B1 (en) | 2013-12-04 | 2013-12-04 | Dew point temperature management device and method of dry room |
| KR10-2013-0150255 | 2013-12-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104699147A true CN104699147A (en) | 2015-06-10 |
| CN104699147B CN104699147B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410730216.3A Expired - Fee Related CN104699147B (en) | 2013-12-04 | 2014-12-04 | Device and method for managing dew point temperature of dry room |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101357858B1 (en) |
| CN (1) | CN104699147B (en) |
| WO (1) | WO2015084049A1 (en) |
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| CN107062884A (en) * | 2017-04-28 | 2017-08-18 | 浙江慧升热能科技有限公司 | A kind of heat pump drying dehumidifying integrated machine |
| CN109358662A (en) * | 2018-10-29 | 2019-02-19 | 北京航空航天大学 | A kind of low dew-point control system in high/low temperature cabin and method |
| CN111727496A (en) * | 2018-02-26 | 2020-09-29 | 东京毅力科创株式会社 | Inspection apparatus and method for operating inspection apparatus |
| JP2020165630A (en) * | 2019-03-29 | 2020-10-08 | 日本スピンドル製造株式会社 | Dew-point temperature adjusting dehumidifying device |
| TWI733354B (en) * | 2019-03-29 | 2021-07-11 | 日商日本紡錘製造股份有限公司 | Drying room and its control method |
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| CN106290801B (en) * | 2016-10-27 | 2018-06-19 | 中南大学 | The device and method of soil body saturation degree control |
| US11215371B2 (en) * | 2018-07-17 | 2022-01-04 | Hussmann Corporation | Variable refrigerant flow (VRF) dehumidification system |
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| CN109668252B (en) * | 2018-12-29 | 2023-07-07 | 广州远正智能科技股份有限公司 | Low dew point double-rotating-wheel dehumidifier complex multivariable parameter online monitoring system and method |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101357858B1 (en) | 2014-02-05 |
| WO2015084049A1 (en) | 2015-06-11 |
| CN104699147B (en) | 2017-01-18 |
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