JP2014100639A - Dehumidification drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidification drier capable of performing dehumidification more efficiently by correcting temperature influence to a moisture absorption body by considering not only temperature of a heat radiation part but also temperature of outside air and air flow in a dehumidification drier using refrigeration cycle and zeolite.SOLUTION: In a dehumidification drier body 3 using a moisture absorption body 10, which are refrigeration cycle 4 and zeolite and so on, temperature detection means 23 is provided on a heat radiation part 6. Based on air flow and operating time, air flowing into the dehumidification drier body is calculated, and according to heat received from the heat radiation part 6, output of heating means 15 is controlled so as to perform efficient dehumidification.

Description

  The present invention relates to a dehumidifying dryer used in general households and offices.

  Conventionally, this type of dehumidifying dryer has been dehumidified by flowing room air into a hygroscopic body made of zeolite or the like by a blower fan. However, if the moisture absorption capacity in the moisture absorbent body is saturated as it is, the dehumidifying effect is lost, so a heating means is provided to recover the moisture absorption capacity, and the moisture adsorbed on the moisture absorbent body is separated by this heat, and then vaporized. There was a method in which moisture was condensed at room temperature and accumulated in a tank. However, with this method, the power consumption increases due to the output of the heating means, and the dehumidification ability at low temperature and high humidity is high, but in a high temperature and high humidity environment, condensation is performed by the heat sink of the compressor. There was a problem that the dehumidification efficiency was worse. In order to solve this problem, a main body case having an intake port and a discharge port and a refrigeration cycle provided in the main body case are provided. The refrigeration cycle includes a compressor and heat dissipation sequentially provided downstream of the compressor. A blower means for blowing the air sucked into the main body case from the intake port into the discharge port through the heat sink and the heat sink in order, It was a path, and a moisture absorber was provided between the radiator and the heat absorber. The moisture absorber includes a dehumidification rotor and a dehumidification rotor driving means, and a moisture release portion of the dehumidification rotor is provided between the radiator and the heat absorber, and the moisture absorption portion of the dehumidification rotor is provided between the heat absorber and the discharge port, The air path between the chamber and the moisture release part of the dehumidifying rotor is provided with heating means. That is, in the conventional product, the indoor air is heated by the radiator and the heating means, and the heated air is blown to the moisture release portion of the dehumidification rotor, so that the moisture of the dehumidification rotor is released to the heated air and the dehumidification is performed. Play the rotor. And the dehumidification ability through the year by dehumidifying the heated air containing moisture first with a heat absorber, dehumidifying it, and blowing the dehumidified air to the moisture absorption part of the dehumidification rotor. High dehumidification efficiency can be obtained.

  Furthermore, in order to suppress power consumption, the temperature sensor for detecting the temperature of the radiator and the heating amount control means for adjusting the output of the heating means for heating the dehumidifying rotor are provided for this configuration in accordance with the temperature of the radiator. There are some which increase the efficiency by changing the output of the heating means (for example, Patent Document 1).

JP 2006-214708 A

  In such a conventional dehumidifying dryer, it does not take into consideration the influence on the heat radiating part and the heating part due to the influence of the outside air temperature, the influence on the hygroscopic body due to the inflow of external air flowing into the dehumidifying dryer main body, etc. There is a possibility that the actual temperature of the heating means does not reach the temperature necessary for water separation from the dehumidifying rotor, or conversely, when the air volume is small, the heating is excessive and the unnecessary power is consumed.

  An object of the present invention is to provide a dehumidifying dryer capable of performing dehumidification more efficiently by correcting the temperature influence on the hygroscopic body by taking into consideration not only the temperature of the heat radiating section but also the outside air temperature and the air volume.

  In the main body case provided with the intake port and the discharge port, the present invention allows the air sucked from the intake port to pass through and absorbs moisture and the heated air to pass through and releases the absorbed moisture. From the refrigerating cycle having the rotary type moisture absorber having the moisture releasing portion, the heat radiating portion for heating the air passing through the moisture releasing portion, the heat absorbing portion for absorbing heat from the air released by the moisture releasing portion, and the intake port A heating unit that includes a blowing unit that sucks and blows air from the discharge port, and the air path from the intake port to the discharge port includes air that is sucked from the intake port disposed on the downstream side of the heat radiating unit and the heat radiating unit. And a dehumidifying air passage for dehumidifying by passing the air that has passed through the moisture releasing portion to the heat absorbing portion and the moisture absorbing portion. The air prepared in series and dehumidified from the outlet In a dehumidifying dryer that forms a hot air passage that blows warm air from the discharge port by passing air sucked from the intake port to the heat radiating section and is arranged near the intake port. Temperature / humidity detecting means for detecting the temperature and humidity of the room, heat radiation temperature detecting means for detecting the temperature by arranging in the heat radiating section, heating output control means for controlling the output of the heating means, and the air blowing The air flow control means for controlling the air volume of the means, the calculation means for calculating the amount of heat radiated into the air from the temperature detection result of the heat radiating section, and the air volume time storage means for storing the air volume and the air blowing time. The controller includes a controller, and the controller flows into the moisture absorber of the dehumidifying dryer from the temperature and humidity of the room detected by the temperature and humidity detector, the air volume stored in the air volume time storage unit, and the blowing time. Calculate the amount of heat released In consideration of the amount of heat calculated by the calculation means, the moisture absorbent is dried by controlling the output of the heating means so as to adjust the air flowing into the moisture release section to a constant temperature. It is a thing. This achieves the intended purpose.

  According to the present invention, the temperature of the hygroscopic body is calculated in consideration of the outside air temperature, the air volume, and the temperature of the heat radiating section. Therefore, the heating section is heated too much while suppressing the power consumption necessary for the regeneration of the hygroscopic body. It has the effect of preventing safety.

The block diagram of the dehumidification dryer of Embodiment 1 of this invention The block diagram of the dehumidification air path of the dehumidification dryer of Embodiment 1 of this invention The block diagram which connects each element of Embodiment 1 of this invention The figure showing the thermal relationship of Embodiment 1 of this invention Control block diagram of dehumidifying dryer according to Embodiment 1 of the present invention

  In the dehumidifying dryer according to claim 1 of the present invention, in the main body case provided with the intake port and the discharge port, the air sucked from the intake port is allowed to pass through and the moisture absorption part that absorbs moisture and the heated air are Rotating moisture absorber having a moisture release part for releasing moisture absorbed by passing through, heat release part for heating air to be passed through the moisture release part, and heat absorption part for absorbing heat from the air released by the moisture release part A refrigeration cycle having a refrigeration cycle and air blowing means for sucking in air from the air inlet and blowing air from the air outlet, and an air path from the air inlet to the air outlet is configured to radiate air sucked from the air inlet and the heat radiating unit. A regenerative air passage for drying the hygroscopic body and passing the air that has passed through the dehumidifying section to the heat absorbing section and the hygroscopic section. A dehumidifying air passage that performs dehumidification is provided in series. In a dehumidifying dryer that forms a hot air passage that blows out dehumidified air from the discharge port, and a hot air passage that blows hot air from the discharge port by passing air sucked from the intake port to a heat radiating unit, A heating / humidity detecting means for detecting the temperature / humidity of the room disposed near the air inlet and a heat radiating temperature detecting means for detecting the temperature disposed in the heat radiating section are provided, and heating for controlling the output of the heating means is further provided. Output control means, air blowing control means for controlling the air volume of the air blowing means, computing means for calculating the amount of heat radiated into the air from the temperature detection result of the heat radiating section, and air volume for storing the air volume and its blowing time A controller comprising a time storage means, wherein the controller is configured to dehumidify the dryer from the temperature and humidity of the room detected by the temperature and humidity detection means, the air volume stored in the air volume time storage means and the blowing time; Flows into the moisture absorber The amount of air to be obtained, taking into account the amount of heat calculated by the heat dissipation heat amount calculation means, and controlling the output of the heating means so as to adjust the air flowing into the moisture release section to a constant temperature, thereby the moisture absorption It is intended to dry the body.

  As a result, the control unit calculates the amount of air flowing into the internal hygroscopic body from the temperature and humidity of the room and the air volume, so that the back temperature of the radiator and the actual temperature of the radiator can be calculated. In comparison, the amount of heat flowing from the radiator to the hygroscopic body is calculated from the temperature difference, and the output of the heating means is adjusted by the heating output control means, so that the effect of efficiently regenerating the hygroscopic body is obtained.

  Further, in the dehumidifying dryer according to claim 2, in order to more accurately control the output of the heating unit, a heating unit temperature detection unit is provided in the vicinity of the heating unit, and the heating unit is controlled based on the detection result. A part is provided.

  Thereby, since the temperature of a heating means can be grasped | ascertained correctly, since the output precision of a heating means can be raised, the effect which can operate more efficiently is acquired.

(Embodiment 1)
The configuration of the first embodiment will be described with reference to the drawings.

  In FIG. 1, an intake port 1 and a discharge port 2 are provided in a dehumidifying dryer body 3.

  Inside the dehumidifying dryer main body 3, a compressor 5 for compressing the refrigerant and a heat dissipating section 6 for radiating the generated heat when the refrigerant is compressed in the passage of the refrigerant are provided, and then the compressed refrigerant is expanded. An expansion means 7 and a refrigeration cycle 4 that returns to the compressor 5 after passing through a heat absorbing portion 8 that is a portion that absorbs heat from the surroundings are provided.

  The heat radiating section 6 of the refrigeration cycle 4 is provided immediately downstream of the air inlet 1, and the subsequent air passage is a hot air air passage 21 for blowing warm air to dry the washed clothes, and a dehumidifying air passage. 17 is divided into two.

  Of these air passages, the warm air air passage 21 is configured to be exhausted from the discharge port 2 after passing through the air blowing means 9 so as to be warmed by the heat radiating portion 6 and to directly release the air to the outside.

  Further, as shown in FIG. 2, the dehumidifying air passage 17 passes through a part of the disk-type dehumidifying body 10 made of zeolite, silica gel, or the like after the heat radiating section 6, but upstream of the dehumidifying body 10. The air is warmed by the heating means 15 provided, and external air passes therethrough.

  Further, the moisture contained in the dehumidifying body 10 is separated at the same time, and when passing through the downstream endothermic portion 8, these moisture is condensed and collected in the tank 22, and then again passes through another part of the dehumidifying body 10. In this configuration, the air is discharged to the outside through the air blowing means 9.

  Here, the dehumidifying body 10 is a disk type, and the dehumidifying body 10 is configured to rotate by the dehumidifying body driving means 12 configured by a stepping motor or the like.

  In addition, after passing through the heat absorbing part 8, the reason why it passes again through the dehumidifying body 10 is that some of the moisture condensed on the heat absorbing part 8 is vaporized again and the humidity rises. The air released in the air is dried. The reason why the warm air passage 21 is provided is to increase the efficiency of drying clothes by increasing the temperature of the air discharged to the outside.

  Further, hereinafter, a region facing the heating means 15 in the dehumidifying body 10 is referred to as a moisture releasing portion 11, and a portion downstream of the moisture absorbing portion 14 is referred to as a moisture absorbing portion 14.

  And in this invention, with respect to the structure of this present dehumidification dryer, the radiator temperature detection means 19 and the heat absorber temperature detection means 20 are provided in the heat radiation part 6 and the heat absorption part 8 of the refrigerating cycle 4, respectively.

  Further, a temperature detecting means 23 for detecting the temperature of the room and a humidity detecting means 24 for detecting the humidity of the room are provided in a place not affected by the blowing means 9, and the temperature detecting means 23 and the humidity detection are provided in the dehumidifying dryer body 3. A control unit 16 for reading the detection result from the means 24 is provided.

  Next, the configuration of the control unit 16 is shown in a block diagram in FIG.

  The control unit 16 reads the temperature of the room or the heat radiating unit 6, calculates parameters necessary for the control, controls the ON / OFF of the compressor 5 and the dehumidifying body driving unit 12, and outputs the heating unit 15 and the blowing unit 9. The calculation / output unit 25 to be controlled, the storage means 27 for storing the advance data necessary for the current control, the zero cross detection unit 26 required for measuring the operation time from the power line, and the air blow control means 13 And the heating control means 18. The air volume time storage means described in the claims is configured to measure the operation time at a certain air volume from the zero cross detector 26 and store it in the storage means 27.

  Examples of the air blow control means include a method of preparing a plurality of combinations of triacs and capacitors and switching the triacs that are connected to an AC motor to turn on, and a method of controlling the air volume with a PWM DC motor.

  Also, the heating control means may be configured to vary the current applied by the phase control of the heating device using the triac and nichrome resistance.

  Next, the calculation method in the present invention will be described.

  FIG. 4 shows a relationship diagram with the amount of heat generated from each element in the present invention. The amount of heat generated from the heat radiating section 6 and flowing into the dehumidifying air passage is defined as Q11, and the amount of heat flowing from the heating means 15 is defined as Qm.

  At this time, when the amount of heat required by the air flowing into the moisture release section 11 is Qa, the following equation is established.

Qa = Qm + Q11 (1)
A method for calculating the amount of heat Q11 generated from the heat radiating portion 6 and flowing into the dehumidifying air passage will be described.

  In order to obtain the amount of heat Q11 generated from the heat radiating section 6 and flowing into the dehumidifying air passage, it is necessary to store the base parameter in the storage means 27. For example, since the output of the refrigeration cycle 4 can only be turned on / off by a relay or the like, the output fluctuates depending on the input frequency. Remember things. Then, when the power is turned on, the zero cross signal for measuring the operation time and the indoor temperature and humidity are detected, and then the temperature rise value of the heat radiating unit is read.

  For example, the control unit 16 reads information such that the temperature rise of the room is 25 ° C. and 50% and the temperature rise of the radiator after the unit time ΔT1 has elapsed in the no wind state is K1 when the AC is turned on at 100V50Hz.

  Here, when the temperature rise in the unit time ΔT1 after turning on the refrigeration cycle 4 and the air blowing means 9 of the dehumidifying dryer main body 3 was K2, [K1-K2] was taken away by the flow of wind. become.

  Since the actual energy amount depends on the product G of the heat capacity and mass of the heat radiating section 6, the energy taken away by the air volume is [G · (K1-K2)]. Energy is transferred to the rear wind path, but since there are two wind paths, the rate of wind flow must be taken into account.

For example, some hot air passages 21 pass through, and the rest passes through the dehumidifying air passage 17. At this time, the ratio varies depending on the configuration of the main body, but is N ₂₁ and N ₁₈ , respectively. And since the ratio of the heat which goes to the dehumidification body 10 is also proportional to this ratio, calorie | heat amount Q11 which goes to the moisture release part 11 of the dehumidification body 10 can be expressed as follows.

_{Q 11 = G · (K1-} K2) · N 18 / (N 21 + N 18) ···· (2)
The amount of heat obtained by adding the amount of heat generated by the heating means 15 to the amount of heat Q ₁₁ is used for separating water in the moisture release section 11.

  Next, a method for calculating the amount of heat Qa required by the air flowing into the moisture release unit 11 will be described.

  First, when the amount of water contained in the dehumidifying body 10 is saturated, the temperature of air necessary for separation of the water is K, and the room temperature at that time is Ka. In order to separate moisture from the dehumidifying body 10, the heat dissipating unit 6 and the heating unit 15 have to raise the air temperature [K−Ka], but the amount of air depends on the air volume of the blowing unit 9.

  Therefore, when the air blowing means 9 can be switched in stages, the wind speed is confirmed and stored in the storage means 27.

For example, when the wind speed in the vicinity of the air inlet 1 when set to a certain air volume is [V (m / s)], when the operating time ΔT1 at this wind speed and the area of the dehumidifier 10 is S, The amount of air that has passed through the dehumidifying air passage 17 is [V · ΔT 1 · N ₁₈ · S]. Since it is the heat capacity a per unit volume of air, the amount of heat Qa required by the air flowing into the moisture release section 11 can be expressed as follows.

_{Qa = ΔT1 · N 18 · V} · S · a · (K-Ka) ···· (3)
Next, a method for calculating the amount of heat Qm flowing from the heating means 15 will be described.

Temperature control value of the heating means 15 and K _m, when controlling the K _m, the temperature of the heating means 15 after being cooled by the air flowing through the heating means 15 and K _15. When the product of the heat capacity and mass of the heating means 15 is F, the amount of heat Qm flowing from the heating means 15 can be expressed as follows.

Qm = F · (K _m −K ₁₅ ) (4)
K _m is the temperature rise value when there is no wind, and K ₁₅ fluctuates due to the influence of the wind, but when the power consumption of the heating means 15 is Pm, K _m = Cm · Pm (5)
K ₁₅ = C ₁₅ · Pm (6)
It shows. At this time, Cm and C ₁₅ represent respective thermal resistance when no wind and during blowing. C ₁₅ in order to vary by and air volume variable, it is necessary to store the measuring and storing means for each air volume setting of the blowing means 9.

Here, in the present invention, in order to control the heating means 15, the parameter required for the control is Pm. The value of K _{m obtained} from the equations (1) to (6) can be shown as follows.
Pm = {V · ΔT1 · N ₁₈ · S · a · (K−Ka) −G · (K1−K2) · N ₁₈ / (N ₂₁ + N ₁₈ )} / F · (Cm−C ₁₅ ). (7)
Since each parameter other than the power consumption Pm of the heating means 15 varies depending on the structure and material, it needs to be measured in advance with an actual machine and stored in the storage means 27. In the above equation (7), S, a, G, and Cm are constants, and the others are variables whose values change depending on the air volume.

Next, the operation and control method of the dehumidifying dryer of the present invention will be described with reference to FIG. First, when the power supply of the dehumidifying dryer main body 3 is turned on, the temperature detection means 23 confirms the room temperature Ka, and the calculation / output part 25 in the control unit 16 receives from the storage means 27 the parameters of the above equation (7). After the K1 is read by the radiator temperature detecting means 19 in the room temperature Ka environment where the temperature of the air necessary for water separation is K, the refrigeration cycle 4, the air blowing means 9 and the heating means 15 are turned on. And start dehumidifying operation. At this time, the calculation / output unit 25 in the control unit 16 starts the measurement of the operation time of the air volume by the blowing means 9 by the zero cross detection unit 26 (the operation so far is referred to as STEP 1). At this time, the heating means 15 is set to a predetermined temperature. Regarding this temperature, it is preferable to collect back data for each room temperature and set it to an experimentally efficient temperature. Thereafter, it is determined whether or not ΔT1 has elapsed with a predetermined air volume. This operation is referred to as STEP2. At this time, when the operation time ΔT1 has elapsed with the same air volume, the process proceeds to the next STEP. However, if the user changes the air volume before the operation time ΔT1 has elapsed, the previous operation time is reset and STEP 2 is changed. repeat. Next, if it is determined that ΔT1 has elapsed since STEP 2, the radiator temperature detecting means 19 measures the temperature rise value K2 of the heat radiating section 6, and the calculation / output section 25 in the control section 16 communicates with the storage means 27. Then, the parameters (N ₁₈ , V, N ₂₁ , C ₁₅ ) of the above equation (7) at the current air volume measured under the current temperature Ka measured by the temperature detecting means 23 are read, and the above equation (7) Pm is obtained by substituting into, and the output of the heating means 15 is controlled by the heating control means 18. Thereafter, the control of STEP2 to STEP4 is repeated at a cycle of ΔT1 until the power is turned off. By performing such control, it becomes possible to operate without consuming wasteful power in the regeneration of the dehumidifying body 10.

  In addition, regarding control of the heating means 15, electric power is controlled so that it may become the output of Pm calculated | required this time. As an example of this current control, there is a method of changing the current flowing through the heating means 15 by the phase control of the triac. Incidentally, the control of the heating means 15 of the present embodiment can be controlled more accurately because the temperature control means such as the thermistor is provided in the vicinity of the heating means 15 so that the thermistor can be phase controlled so as to reach the target temperature. .

  The present invention can be applied to a dehumidifying dryer using a refrigeration cycle and a desiccant.

DESCRIPTION OF SYMBOLS 1 Intake port 2 Discharge port 3 Dehumidification dryer main body 4 Refrigeration cycle 5 Compressor 6 Heat radiation part 7 Expansion means 8 Heat absorption part 9 Air blower 10 Dehumidification body 11 Moisture release part 12 Dehumidification body drive means 13 Air blow control means 14 Humidity absorption part 15 Heating Means 16 Control part 17 Dehumidification air path 18 Heating control means 19 Radiator temperature detection means 21 Hot air air path 22 Tank 23 Temperature detection means 24 Humidity detection means 25 Calculation / output part 26 Zero cross detection part 27 Storage means

Claims (2)

In the main body case provided with an intake port and a discharge port, a moisture absorption unit that passes the air sucked from the intake port and absorbs moisture and a moisture release unit that discharges the absorbed moisture by passing heated air are provided. A rotary moisture absorber, a refrigeration cycle having a heat radiating portion that heats air passing through the moisture wicking portion, and a heat absorbing portion that absorbs heat from the air that the moisture wicking portion has dehumidified; The air passage from the air inlet to the outlet has air blowing means for blowing air from the outlet, and the air that has been sucked from the air inlet is disposed on the downstream side of the heat radiating portion and the heat radiating portion, and the moisture release And a dehumidifying air passage that dehumidifies the air by passing the air passing through the moisture-releasing portion through the heat-absorbing portion and the moisture-absorbing portion. To blow out dehumidified air from the outlet. And a dehumidifying dryer that forms a hot air passage that passes air sucked from the air inlet to the heat radiating section and blows hot air from the outlet. A temperature / humidity detection means for detecting humidity, a heat radiation temperature detection means for detecting the temperature by being arranged in the heat radiating section, a heating output control means for controlling the output of the heating means, and an air volume of the blower means are provided. A control unit comprising: a blowing control unit for controlling; a calculation unit for calculating the amount of heat radiated into the air from a temperature detection result of the heat radiation unit; and an air volume time storage unit for storing the air volume and the blowing time. The control unit obtains the amount of air flowing into the moisture absorbent body of the dehumidifying dryer from the temperature and humidity of the room detected by the temperature and humidity detection means, the air volume stored in the air volume time storage means and the blowing time, For heat dissipation calorie calculation means Upon adding the calculated amount of heat, dehumidifying dryer for drying the moisture absorber to control the output of said heating means so as to adjust the air flowing into the moisture releasing section at a constant temperature. The dehumidifying dryer according to claim 1, further comprising a heating unit temperature detection unit provided in the vicinity of the heating unit and a control unit for controlling the heating unit based on the detection result in order to control the output of the heating unit more accurately. .

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