CN113749274B - Constant-temperature and constant-humidity cigar cabinet and control method thereof - Google Patents

Abstract

The invention provides a constant-temperature and constant-humidity cigar cabinet and a control method thereof, wherein the constant-temperature and constant-humidity cigar cabinet comprises an inner container, and a temperature control device, a humidifying device and an air guide device which are arranged in the inner container; the temperature control device comprises a water tank, a refrigerating assembly and a heating assembly; the humidifying device is used for pumping out water in the water tank and spraying the water on the surface of the heat exchanger so as to form a high-humidity environment at the heat exchanger; the air guide device comprises a first air guide plate, a second air guide plate and an induced air fan, a first area is formed by enclosing the first air guide plate and the inner container, a second area is formed by enclosing the first air guide plate, the second air guide plate and the inner container, a third area is formed in the space in front of the second air guide plate in the inner container, upward flowing air flow is generated in the first area by the induced air fan, the air flow passes through the large holes to enter the second area after premixing of the first area, and passes through the small holes to enter the third area after remixing and buffering of the second area. The invention has the advantages of good air guiding effect, good temperature and humidity balance and accurate temperature and humidity control.

Description

Constant-temperature and constant-humidity cigar cabinet and control method thereof

Technical Field

The invention belongs to the technical field of cigar preservation, and particularly relates to a constant-temperature constant-humidity cigar cabinet and a control method thereof.

Background

The storage and maintenance of cigars are generally carried out under specific temperature and humidity conditions, generally speaking, the storage and maintenance conditions of cigars are that the temperature is required to be between 16 ℃ and 22 ℃ and the humidity is required to be between 60% and 80%.

At present, most of cigars are stored in wooden cigar boxes or red wine cabinets, the refrigeration process in the prior art needs to meet the requirement of the temperature in the cabinets, the surface evaporation temperature of an evaporator is usually below 0 ℃, the temperature is inevitably lower than the dew point temperature of air in the cabinets, the humidity in the cabinets is inevitably reduced, when the temperature in the cabinets reaches a target value, a compressor is stopped, the surface temperature of the evaporator rapidly rises at the moment and is higher than the dew point temperature of the air in the cabinets, so that the humidity in the cabinets rises, the humidity in the cabinets repeatedly rises, the temperature and the humidity in the boxes or the cabinets cannot be well controlled and adjusted, the required storage conditions of the cigars cannot be met, and the purpose of storing and maintaining the cigars for a long time cannot be achieved.

The cigar cabinet in the prior art adopts a mode of an evaporator/heater + fan to supply air, for example, an internal environment adjusting device of the cigar cabinet disclosed in chinese patent 201821536930.9, which has the defects that under the action of the fan, cold and hot air is directly blown away towards the space in the cabinet, so that the position close to the air outlet of the fan forms direct blowing, the temperature influence is large, the temperature adjustment of the position far away from the air outlet of the fan is not obvious, when the cigar cabinet has a large storage space, the temperature difference of different areas in the cabinet is large, and cigars are influenced by the storage position to cause quality difference.

Therefore, the temperature and humidity of the cigar storage space need to be kept balanced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the constant-temperature constant-humidity cigar cabinet and the control method thereof, and the constant-temperature constant-humidity cigar cabinet has the advantages of good air guiding effect, good temperature and humidity balance and accurate temperature and humidity control.

The invention provides a constant-temperature and constant-humidity cigar cabinet, which comprises an inner container, and a temperature control device, a humidifying device and an air guide device which are arranged in the inner container;

the temperature control device comprises a water tank, a refrigerating assembly and a heating assembly;

the refrigeration assembly comprises a heat exchanger and a water immersion evaporator, the water immersion evaporator is arranged in the water tank and refrigerates water in the water tank through the compressor assembly, and the heat exchanger is communicated with cold water in the water tank to perform refrigeration cycle;

the humidifying device is used for pumping out water in the water tank and spraying the water on the surface of the heat exchanger so as to form a high-humidity environment at the heat exchanger;

the air guide device comprises a first air guide plate, a second air guide plate and an induced draft fan;

the first air deflector is arranged in the inner container and has a distance with the rear side wall of the inner container, so that a first area is formed by the first air deflector and the inner container in an enclosing manner, and a large hole for guiding air is arranged on the first air deflector;

The second air deflector is arranged in the inner container and has a distance with the first air deflector, so that a second area is formed by the first air deflector, the second air deflector and the inner container in a surrounding manner, and small holes for guiding air are arranged on the second air deflector;

a third area is formed in the space in the inner container, which is positioned in front of the second air deflector, and the third area is used for storing cigars;

the heat exchanger is located in the first area, the heating assembly is located in the first area or the second area, the induced draft fan is horizontally arranged in the first area and located above the heat exchanger, the induced draft fan is used for generating upward flowing air flow in the first area, the air flow enters the second area through the large holes after being premixed in the first area, and enters the third area through the small holes after being remixed and buffered in the second area.

As another specific embodiment of the present invention, the air guiding device further includes two circulating fans, the inner container has a left sidewall and a right sidewall, the two circulating fans are disposed on the left sidewall and the right sidewall, wherein the circulating fans are disposed close to the second air guiding plate, and the two circulating fans are disposed on the top and the bottom of the inner container respectively in an inclined alignment manner.

As another specific embodiment of the present invention, the air guiding device further includes an adjusting fan, the adjusting fan is vertically disposed on the first air guiding plate and located in the first area or the second area, and the adjusting fan is used to accelerate the air flow from the first area to the second area.

As another specific embodiment of the present invention, the humidifying device includes a spray pipe and a spray pump, the spray pump is disposed in the water tank, the spray pipe is communicated with cold water in the water tank and located above the heat exchanger, and the spray pump is turned on and sprays water to the surface of the heat exchanger through the spray pipe.

In another embodiment of the present invention, the water tank is disposed below the heat exchanger, the water tank is provided with a top cover having a through hole, the top cover is provided with a flow-converging groove, and the cold water dropped from the heat exchanger flows into the water tank through the flow-converging groove and the through hole.

As another specific embodiment of the present invention, the air guiding device further includes a water guiding partition plate, the water guiding partition plate is located at the bottom of the second area and is higher than the water tank, wherein the water guiding partition plate is provided with a water guiding groove, an outlet of the water guiding groove is located above the water tank, wherein water drops are generated during remixing and buffering of the high humidity gas in the second area, and the water drops collected on the first air guiding plate and/or the second air guiding plate can drop on the water guiding partition plate and flow into the water tank through the water guiding groove.

As another specific embodiment of the present invention, the air guiding device further includes a return air guiding plate, the return air guiding plate is located right below the second air guiding plate, a fourth area for performing return air circulation on air with a certain temperature and humidity in the third area is formed by the return air guiding plate, the water guiding partition plate and the inner container, the water tank is located in the fourth area, and the first area is communicated with the fourth area to form air flow circulation.

As another embodiment of the present invention, the ratio of the sum of the effective flow areas occupied by the small holes to the sum of the effective flow areas occupied by the large holes is 1: 1-1: and 3, the projection of the small hole on the first air deflector is staggered with the large hole.

The second purpose of the invention is to provide a control method of the constant temperature and humidity cigar cabinet, which comprises the following steps:

measuring an actual temperature value, an actual humidity value and a current water temperature value in a water tank in a third area, and calculating a current dew point temperature value and a water temperature value to be set according to the actual temperature value and the actual humidity value of the third area;

setting a water temperature value as a current dew point temperature value-dew point temperature deviation value;

the dew point temperature deviation value is determined by an integral algorithm according to the current humidity value and the target humidity value, the dew point temperature deviation value is increased or decreased by comparing the magnitude relation of the current humidity value and the target humidity value, and the dew point temperature deviation value is zero when the machine is started;

starting the variable frequency compressor component at a set frequency, and refrigerating water in the water tank through the immersion evaporator until the actual water temperature value in the water tank is the same as the set water temperature value; starting up a circulating water pump positioned in the water tank at a set flow rate to circularly supply water to the heat exchanger for continuous refrigeration; starting the air inducing fan to generate circulating air flow at a set duty ratio;

Step three, judging the magnitude relation between the measured actual temperature value and the set temperature

1) If the actual temperature value is larger than the target temperature value and refrigeration is needed, the duty ratio of the induced draft fan is increased to control the rotation speed of the induced draft fan to be increased so as to carry out a rapid refrigeration process;

2) if the actual temperature value is smaller than the target temperature value and needs to be heated, the heating assembly is started while the duty ratio of the induced air fan is kept so as to carry out a rapid heating process;

step four, judging the relation between the actual humidity value and the set humidity

1) Humidification is required if the actual humidity value is less than the target humidity value,

if the actual humidity value is continuously smaller than the target humidity value, the dew point temperature deviation value is decreased gradually until the value is zero, the set water temperature value is increased, and the required water temperature value is obtained by controlling the variable frequency compressor to adjust;

when the deviation value of the dew point temperature is zero, the actual humidity value is still smaller than the target humidity value, the humidifying device is started to spray water in the water tank onto the surface of the heat exchanger, and a high-humidity environment is formed at the heat exchanger;

in the process of increasing the temperature value in the water tank, synchronously and correspondingly increasing the duty ratio of the induced draft fan to control the rotation speed of the induced draft fan to increase so as to ensure the dynamic balance of the refrigerating capacity;

2) Dehumidification is required if the actual humidity value is greater than the target humidity value,

if the actual humidity value is continuously larger than the target humidity value, the dew point temperature deviation value is decreased, the set water temperature value is reduced, and the required water temperature value is obtained by controlling the variable frequency compressor to adjust;

when the surface temperature of the heat exchanger is lower than the dew point temperature, water molecules in the circulating air flow are condensed when meeting the low-temperature heat exchanger, so that the humidity is reduced;

in the process of reducing the temperature value in the water tank, synchronously and correspondingly reducing the duty ratio of the induced draft fan to control the reduction of the rotating speed of the induced draft fan so as to ensure the dynamic balance of the refrigerating capacity; or, the duty ratio of the induced draft fan is kept, and meanwhile, the heating assembly is started to ensure dynamic balance of refrigerating capacity.

As another embodiment of the invention, the output flow of the circulating water pump can be comprehensively controlled to be increased or decreased during refrigeration, heating, dehumidification and humidification.

The invention has the following beneficial effects:

according to the invention, the first area, the second area and the third area are formed in the inner container, wherein the airflow is premixed in the first area, the airflow is remixed and buffered in the second area, the uniformly mixed airflow after buffering and speed reduction enters the third area in a surface air outlet (second air deflector) mode, and the temperature and humidity of the cigars stored in the third area are regulated, so that the process can uniformly mix the airflow (uniform temperature and uniform humidity) and buffer and reduce the speed, the stored cigars are prevented from being blown straight, the uniformly mixed airflow is more stable in air outlet, the temperature fluctuation range in the whole third area is smaller, and the accurate regulation and control of the temperature and humidity are facilitated;

Meanwhile, the second area forms a surface air outlet structure at the second air deflector, so that the problem that the temperature in a third area of a large-range space is uneven due to a traditional single air outlet, namely the temperature far away from the air outlet fluctuates greatly, and accurate regulation and control are difficult to realize can be effectively avoided; the integral air outlet formed by the surface air outlet structure can realize the purpose of sending out the air flow which is uniformly mixed in a larger range, and is favorable for uniformly filling a specific space for storing cigars with the air flow so as to carry out accurate temperature and humidity adjustment.

Meanwhile, the surface air outlet structure can reduce the requirements on parts and detection precision, greatly stabilize the whole temperature and humidity regulation process, and has good uniformity and less influence on the precision of the temperature and humidity detector.

The control method comprehensively controls the regulation and control process of the temperature and the humidity, and cooperatively controls the current frequency of the variable frequency compressor, the output flow of the circulating water pump and the duty ratio of the induced draft fan to realize the comprehensive regulation and control of the temperature and the humidity and maintain the balance of the temperature and the humidity in the third area.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a cigar cabinet according to embodiment 1 of the present invention;

fig. 2 is an exploded view of a cigar cabinet according to embodiment 1 of the present invention;

FIG. 3 is a schematic longitudinal sectional view of a cigar locker according to embodiment 1 of the invention;

fig. 4 is an exploded view of the wind guiding device in the cigar cabinet according to embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a first air guiding plate and a second air guiding plate in embodiment 1 of the present invention;

FIG. 6 is a schematic structural view of a heating module according to embodiment 1 of the present invention;

FIG. 7 is a schematic view showing the structure of a water guide diaphragm in embodiment 1 of the present invention;

FIG. 8 is a schematic structural view of another perspective of a water guide partition plate according to embodiment 1 of the present invention;

FIG. 9 is a schematic structural view of a refrigerating module according to embodiment 1 of the present invention;

FIG. 10 is an exploded view of FIG. 9;

fig. 11 is a sectional view schematically showing the structure of the water tank of fig. 9.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

Example 1

The present embodiment provides a constant temperature and humidity cigar cabinet, as shown in fig. 1 to 11, which includes an inner container 100, and a temperature control device, a humidifying device and an air guiding device disposed in the inner container 100;

the temperature control device comprises a water tank 200, a refrigerating assembly 300 and a heating assembly 400;

the refrigeration assembly 300 comprises a heat exchanger 301 and a water immersion evaporator 302, the water immersion evaporator 302 is arranged in the water tank 200 and refrigerates water in the water tank 200 through a compressor assembly, and the heat exchanger 301 is communicated with cold water in the water tank 200 to perform refrigeration cycle;

wherein the humidifying device is used for pumping out the water in the water tank 200 and spraying the water on the surface of the heat exchanger 301 to form a high-humidity environment at the heat exchanger 301;

the air guide device comprises an air guide plate assembly 500 and a fan assembly 600, wherein the air guide plate assembly 500 comprises a first air guide plate 510, a second air guide plate 520, a water guide partition plate 530 and a return air guide plate 540, and the fan assembly 600 comprises an induced air fan 610, a regulating fan 620 and two circulating fans 630;

the first air deflector 510 is disposed in the inner container 100 and has a distance with the rear sidewall 102 of the inner container 100, so that the first air deflector 510 and the inner container 100 enclose to form a first region 103, as shown in fig. 3-5, the first air deflector 510 is provided with a plurality of large holes 511 for guiding air;

The second air guiding plate 520 is disposed in the liner 100 and has a distance from the first air guiding plate 510, so that the first air guiding plate 510, the second air guiding plate 520 and the liner 100 enclose a second area 104, as shown in fig. 3-5, the second air guiding plate 520 is provided with a plurality of small holes 521 for guiding air;

the adjusting fan 620 is vertically arranged on the first air deflector 510 and is located in the first area 103 or the second area 104, the adjusting fan 620 is used for accelerating the air flow to flow from the first area 103 to the second area 104, and the adjusting fan 620 can generate a transverse acceleration effect on the air flow.

As shown in fig. 3, the third area 105 is used for storing cigars, and the door 101 opens or closes the third area 105 to pick and place the cigars.

The inner container 100 has left and right sidewalls, two circulation fans 630 are disposed on the left and right sidewalls, wherein the circulation fans 630 are disposed near the second air deflectors 520, and the two circulation fans 630 are disposed at the top and bottom of the inner container 100, respectively, in an inclined alignment manner.

Referring again to fig. 3, the heat exchanger 301 is located in the first region 103, the heating assembly 400 is located in the first region 103, the induced draft fan 610 is horizontally disposed in the first region 103 and above the heat exchanger 301, an upward flowing air flow is generated in the first region 103 by the induced draft fan 610, the air flow passes through the large holes 511 after premixing in the first region 103, enters the second region 104, passes through the small holes 521 after remixing and buffering in the second region 104, and enters the third region 105.

The two circulation fans 630 can circulate the airflow entering the third area 105 to diffuse and fill the third area 105, so as to achieve the equalization of the temperature and humidity of the airflow, wherein the two circulation fans 630 are distributed in an inclined alignment manner, so that the circulation effect of the airflow in the third area 105 can be accelerated.

The ratio of the total effective flow area occupied by the small holes 521 to the total effective flow area occupied by the large holes 511 in this embodiment is 1: 1-1: 3, for example, the total effective flow area occupied by the small holes 521 is half of the total effective flow area occupied by the large holes 511, as shown in fig. 5, this layout mode forms a stepped buffering effect on the air flow, so that the air flow is remixed in the second region 104 to form an air flow with uniform temperature and humidity, and then flows into the third region 105 through the small holes 521 on the second air deflector 520 in a scattering manner, and the air flow remixed and buffered through the second region 104 has stable temperature and humidity, so as to perform precise temperature and humidity adjustment.

The large holes 511 are preferably strip-shaped holes, and the specific shapes and sizes thereof may be the same or different, as shown in fig. 5, so that an effect of uniform flow is more easily formed in the height direction, and the airflow in the first region 103 passes through the large holes 511 located at different heights to be rapidly dispersed in the second region 104 to improve the remixing effect.

Furthermore, the projection of the small hole 521 on the first air deflector 510 is staggered with the large hole 511, so that the phenomenon that the air flow in the first area 103 transversely flows into the second area 104 from the large hole 511 and then directly flows out from the small hole 521 is weakened, and the mixing effect of the air flow in the second area 104 is improved.

Specifically, the ratio of the effective space occupied by the first region 103 to the effective space occupied by the second region 104 is 1: 1-1: for example, the effective space occupied by the second area 104 is 1.5 times of the effective space occupied by the first area 103, as shown in fig. 3, the effective space of the second area 104 is larger, which is more favorable for uniform mixing of the air flows, and it is ensured that the temperature and humidity of the air flow flowing into the third area 105 through the different small holes 521 are uniform, thereby ensuring the temperature and humidity of the whole third area 105.

Further, as shown in fig. 5, the first air guiding plate 510 in this embodiment includes a first upper air guiding plate 512 and a first lower air guiding plate 513, and the first upper air guiding plate 512 and the first lower air guiding plate 513 are preferably integrally formed.

The first upper air deflector 512 is located above the induced draft fan 610, and the first lower air deflector 513 is located below the induced draft fan 610, that is, the induced draft fan 610 is flush with the connection between the first upper air deflector 512 and the first lower air deflector 513; the large hole 511 is arranged on the first upper air deflector 512, the first lower air deflector 513 is a closed air deflector, an installation area for placing the refrigeration component 300 and the humidification device is formed between the first lower air deflector 513 and the liner 100, air in the installation area flows upwards under the drive of the induced air fan 610, and the temperature and humidity are regulated and controlled through the refrigeration component 300 and the humidification device.

The second air guiding plate 520 comprises a second upper air guiding plate 522 and a second lower air guiding plate 523, wherein the second upper air guiding plate 522 is flush with the first upper air guiding plate 512, and the second lower air guiding plate 523 is flush with the first lower air guiding plate 513;

the aperture 521 includes a first aperture 5211 and a second aperture 5212;

the second upper deflector 522 is provided with a plurality of first apertures 5211, and as shown in fig. 5, the second lower deflector 523 is provided with a plurality of second apertures 5212, preferably the effective flow area of the second apertures 5212 is set to exceed the effective flow area of the first apertures 5211, for example, the effective flow areas of the first apertures 5211 and the second apertures 5212 are the same.

As shown in fig. 3, the tops of the first area 103 and the second area 104 are flush or nearly flush, and in order to form a larger air outlet surface, the bottom of the second area 104 is lower than the bottom of the first area 103, and part of the air flowing into the second area 104 from the first area 103 fills the second area 104 downwards and flows out of the second small hole 5212 during the remixing and buffering process.

In this embodiment, after the airflow in the first region 103 enters the second region 104 through the large hole 511, the airflow gradually settles downward to fill the whole second region 104, and in this process, through the first small holes 5211 and the second small holes 5212 which are uniformly distributed, the airflow forms scattering and flows into the third region 105, thereby avoiding the phenomenon that the cigar is damaged due to the fact that the cigar is directly blown by a single air outlet in the traditional temperature and humidity control, being beneficial to maintaining the temperature and humidity balance in the third region 105, and bringing great convenience to the user.

As shown in fig. 6, the heating module 400 is disposed in the first region 103, and includes a mounting box 401 capable of ventilating air, and a heater 402, wherein the mounting box 401 is mounted on a first air deflector 510, and the heater 402 is preferably a PTC heater disposed in the mounting box 401.

Specifically, the adjusting fan 620 is disposed in the mounting case 401 in a vertical manner for forming a lateral flow of the air flow to facilitate direct and rapid transfer of heat generated by the heater 402 into the second region 104 while saving the mounting structure.

The humidifying device comprises a spray pipe 700 and a spray pump 701, the spray pump 701 is arranged in the water tank 200, the spray pipe 700 is communicated with cold water in the water tank 200 and is positioned above the heat exchanger 301, and the spray pump 701 is started and sprays the cold water to the surface of the heat exchanger 301 through the spray pipe 700.

Specifically, the shower pipe 700 is disposed above the heat exchanger 301 and below the induced draft fan 610, the shower pipe 700 is connected to the water tank 200 through the first water pipe 702 to spray cold water for humidification onto the surface of the heat exchanger 301, wherein the sprayed cold water forms a high humidity environment containing a large amount of water mist molecules at the heat exchanger 301, and the water mist molecules are mixed with the air flow to form a high humidity air flow under the action of the induced draft fan 610, so as to humidify the cigar cabinet.

The water tank 200 is disposed below the heat exchanger 301, the water tank 200 is provided with a top cover 210 having a through hole 212, a confluence groove 211 is provided on the top cover 210, and the cold water dropped from the heat exchanger 301 flows into the water tank 200 through the confluence groove 211 and the through hole 212.

Wherein, the confluence groove 211 is preferably provided with a filter cotton 213 for filtering the reflowing water.

The water guiding partition 530 is located at the bottom of the second region 104 and is higher than the water tank 200, as shown in fig. 4, 7 and 8, a water guiding groove 531 is arranged on the water guiding partition 530, an outlet of the water guiding groove 531 is located above the water tank 200, water drops are generated in the process that the high humidity gas is remixed and buffered in the second region 104, and the water drops collected on the first air deflector 510 and/or the second air deflector 520 can drop on the water guiding partition 530 and flow into the water tank 200 through the water guiding groove 531.

The water guide groove 531 is preferably an inclined downward chute to quickly collect and discharge water droplets.

The edges of two opposite sides of the water guide partition 530 are provided with slots 532 for installation, and the water guide partition 530 is installed and fixed by the cooperation of the bosses arranged on the inner container 100 and the slots 532.

Further, the water guide partition 530 has a carrier 533 connected to the second air guiding plate 520, the carrier 533 has a horizontal bottom plate 5331 and a vertical side plate 5332, and the second air guiding plate 520 is supported on the bottom plate 5331 and is overlapped and connected to the side plate 5332, so as to achieve pre-assembly of the second air guiding plate.

Still further, an edge 534 of the water guiding partition 530 is disposed to protrude rearward from the second region 104, so that the first wind deflector 510 is directly supported on the upper surface of the water guiding partition 530.

In order to facilitate the rapid discharge of water droplets, a notch 535 for water leakage may be formed at the bottom of the water guide groove 531 to discharge the water in the water guide groove 531.

The return air deflector 540 is located right below the second deflector 520, a fourth area 106 for performing return air circulation on gas with certain temperature and humidity in the third area 105 is formed by enclosing the return air deflector 540, the water guide partition 530 and the inner container 100, a row of return air holes 541 are formed in the return air deflector 540, the water tank 200 is located in the fourth area 106, and the fourth area 106 is communicated with the first area 103 and the third area 105 to form air circulation in the inner container 100.

As shown in fig. 9 to 11, a fixed amount of water is stored in the water tank 200, the immersion evaporator 302 is disposed in the water tank 200 and cools the water in the water tank 200 to obtain cold water, and the immersion evaporator 302 is a tube evaporator that is disposed in the water tank 200, for example, by way of a support base and is cooled by an inverter compressor assembly.

The heat exchanger 301 is disposed above the water tank 200, and is supported on the left and right side walls of the inner container 100, for example, by means of a bracket, wherein the heat exchanger 301 is a fin-type water-cooled evaporator, an inlet of the heat exchanger 301 is connected to the water tank 200 through a second water pipe 303, an outlet of the heat exchanger 301 is connected to the water tank 200 through a third water pipe 304, and cold is provided to the heat exchanger 301 through cold water to perform matching refrigeration.

The water tank 200 in this embodiment may also be divided into a water storage cavity 220 and a water pumping cavity 230 by, for example, a fixed filter cotton, as shown in fig. 11, wherein the water storage cavity 220 is mainly used for storing the added water and the water, and the water pumping cavity 230 is mainly used for placing parts such as a circulating water pump 240, a spray pump 701, an alarm unit 250 for high and low water level alarm, and the like.

In the embodiment, the spraying water is less consumed in the circulation process of the cigar cabinet, and a sterilizing lamp can be arranged in the water pumping cavity 230 to perform sterilization treatment so as to keep the water in the water tank 200 used for a long time.

Accordingly, the water tank 200 is provided with a water inlet pipe 260 and a water outlet pipe 270 for replacing the fresh water in the water tank 200, wherein a water inlet 261 of the water inlet pipe 260 may be led out to a side wall, for example, a right side wall, of the inner container 100 through a pipeline to facilitate the filling operation.

The inner container 100 may be further provided with a dark cell 107 for draining water, and the operation of replacing fresh water is realized by opening the dark cell 107 and leading out a drain pipe 270 for draining water.

More specifically, in order to avoid being beneficial to the heat preservation of the water tank 200 and prevent the condensation of the outer wall of the water tank 200, the outer wall of the water tank 200 is further provided with a foaming layer, so that the influence of the external dispersion of the cold energy of the water tank 200 on the temperature in the cigar cabinet is eliminated.

Example 2

The embodiment provides a method for controlling a constant-temperature and constant-humidity cigar cabinet, which is used for controlling the constant-temperature and constant-humidity cigar cabinet provided by the embodiment 1 and comprises the following steps:

measuring an actual temperature value, an actual humidity value and a current water temperature value in a water tank in a third area, and calculating a current dew point temperature value and a water temperature value to be set according to the actual temperature value and the actual humidity value of the third area;

setting a water temperature value as a current dew point temperature value-a dew point temperature deviation value;

the dew point temperature deviation value is determined by an integral algorithm according to the current humidity value and the target humidity value, the dew point temperature deviation value is increased or decreased by comparing the magnitude relation of the current humidity value and the target humidity value, and the dew point temperature deviation value is zero when the machine is started;

starting the variable frequency compressor component at a set frequency, and refrigerating water in the water tank through the immersion evaporator until the actual water temperature value in the water tank is the same as the set water temperature value; starting up a circulating water pump positioned in the water tank at a set flow rate to circularly supply water to the heat exchanger for continuous refrigeration; starting the air inducing fan to generate circulating air flow at a set duty ratio;

Step three, judging the magnitude relation between the measured actual temperature value and the set temperature

1) If the actual temperature value is larger than the target temperature value and refrigeration is needed, the duty ratio of the induced draft fan is increased to control the rotation speed of the induced draft fan to be increased so as to carry out a rapid refrigeration process;

2) if the actual temperature value is smaller than the target temperature value and needs to be heated, the heating assembly is started while the duty ratio of the induced air fan is kept so as to carry out a rapid heating process;

step four, judging the relation between the actual humidity value and the set humidity

1) Humidification is required if the actual humidity value is less than the target humidity value,

if the actual humidity value is continuously smaller than the target humidity value, the dew point temperature deviation value is decreased gradually until the value is zero, the set water temperature value is increased, and the required water temperature value is obtained by controlling the variable frequency compressor to adjust;

when the deviation value of the dew point temperature is zero, the actual humidity value is still smaller than the target humidity value, the humidifying device is started to spray water in the water tank onto the surface of the heat exchanger, and a high-humidity environment is formed at the heat exchanger;

in the process of increasing the temperature value in the water tank, synchronously and correspondingly increasing the duty ratio of the induced draft fan to control the rotation speed of the induced draft fan to increase so as to ensure the dynamic balance of the refrigerating capacity;

2) Dehumidification is required if the actual humidity value is greater than the target humidity value,

if the actual humidity value is continuously larger than the target humidity value, the dew point temperature deviation value is decreased, the set water temperature value is reduced, and the required water temperature value is obtained by controlling the variable frequency compressor to adjust;

when the surface temperature of the heat exchanger is lower than the dew point temperature, water molecules in the circulating air flow are condensed when meeting the low-temperature heat exchanger, so that the humidity is reduced;

in the process of reducing the temperature value in the water tank, synchronously and correspondingly reducing the duty ratio of the induced draft fan to control the reduction of the rotating speed of the induced draft fan so as to ensure the dynamic balance of the refrigerating capacity; or, the duty ratio of the induced draft fan is kept, and meanwhile, the heating assembly is started to ensure dynamic balance of refrigerating capacity.

Specifically, during refrigeration, heating, dehumidification and humidification, the output flow of the circulating water pump can be comprehensively controlled to be increased or decreased, so that the cold quantity released by the heat exchanger is decreased or increased.

According to the control method provided by the embodiment, the current frequency of the variable frequency compressor, the output flow of the circulating water pump and the duty ratio of the induced draft fan are cooperatively controlled to realize comprehensive regulation and control of the temperature and the humidity, so that the fluctuation value of the temperature and the humidity in the box can be controlled in a small range, the temperature and the humidity in the third area are maintained to be balanced, and the requirements of the cigar storage on the temperature and the humidity are met.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims (10)

1. A constant temperature and humidity cigar cabinet is characterized by comprising an inner container, and a temperature control device, a humidifying device and an air guide device which are arranged in the inner container;

the temperature control device comprises a water tank, a refrigerating assembly and a heating assembly;

the refrigeration assembly comprises a heat exchanger and a water immersion evaporator, the water immersion evaporator is arranged in the water tank and refrigerates water in the water tank through a compressor assembly, and the heat exchanger is communicated with cold water in the water tank to perform refrigeration circulation;

the humidifying device is used for pumping out water in the water tank and spraying the water on the surface of the heat exchanger so as to form a high-humidity environment at the heat exchanger;

the air guide device comprises a first air guide plate, a second air guide plate and an induced draft fan;

the first air deflector is arranged in the inner container and has a distance with the rear side wall of the inner container, so that a first area is formed by the first air deflector and the inner container in an enclosing manner, and a large hole for guiding air is formed in the first air deflector;

The second air deflector is arranged in the inner container and has a distance with the first air deflector, so that a second area is formed by enclosing the first air deflector, the second air deflector and the inner container, and small holes for guiding air are arranged on the second air deflector;

a third area is formed in the space in the inner container, which is located in front of the second air deflector, and the third area is used for storing cigars;

the heat exchanger is positioned in a first area, the heating assembly is positioned in the first area or a second area, the induced draft fan is horizontally arranged in the first area and positioned above the heat exchanger, the induced draft fan is utilized to generate an upward flowing air flow in the first area, the air flow passes through the large holes to enter the second area after being premixed in the first area, and passes through the small holes to enter the third area after being remixed and buffered in the second area;

the air guiding device further comprises a water guiding partition plate, the water guiding partition plate is located at the bottom of the second area and is higher than the water tank, a water guiding groove is formed in the water guiding partition plate, high-humidity gas can generate water drops in the process of remixing and buffering in the second area, and the water drops gathered on the first air guiding plate and/or the second air guiding plate can drop on the water guiding partition plate and flow into the water tank through the water guiding groove.

2. The cigar cabinet according to claim 1, wherein the air guide device further comprises two circulation fans, the inner container has a left side wall and a right side wall, the two circulation fans are disposed on the left side wall and the right side wall, wherein the circulation fans are disposed near the second air guide plate, and the two circulation fans are disposed on the top and the bottom of the inner container in an inclined alignment manner, respectively.

3. The cigar cabinet according to claim 1, wherein the air guide device further comprises an adjusting fan vertically disposed on the first air guide plate and located in the first area or the second area, and the adjusting fan is used to accelerate the air flow from the first area to the second area.

4. The cigar cabinet as claimed in claim 1, wherein the humidifying device comprises a spray pipe and a spray pump, the spray pump is disposed in the water tank, the spray pipe is communicated with the cold water in the water tank and is located above the heat exchanger, and the spray pump is turned on and sprays water to the surface of the heat exchanger through the spray pipe.

5. The constant temperature and humidity cigar cabinet according to claim 4, wherein the water tank is disposed below the heat exchanger, the water tank is provided with a top cover having a through hole, a confluence groove is provided on the top cover, and the cold water dropped from the heat exchanger flows into the water tank through the confluence groove and the through hole.

6. The constant temperature and humidity cigar cabinet according to claim 1, wherein the outlet of the gutter is located above the water tank.

7. The constant-temperature and constant-humidity cigar cabinet as claimed in claim 6, wherein the air guiding device further comprises a return air guiding plate, the return air guiding plate is located under the second air guiding plate, a fourth area for performing return air circulation on air with certain temperature and humidity in a third area is formed by the return air guiding plate, the water guiding partition plate and the inner container in an enclosing mode, the water tank is located in the fourth area, and the first area is communicated with the fourth area to form air flow circulation.

8. The constant temperature and humidity cigar cabinet according to claim 1, wherein the ratio of the sum of the effective flow areas occupied by the small apertures to the sum of the effective flow areas occupied by the large apertures is 1: 1-1: and 3, the projection of the small hole on the first air deflector is staggered with the large hole.

9. A method of controlling a constant temperature and humidity cigar cabinet according to any one of claims 1 to 8,

measuring an actual temperature value, an actual humidity value and a current water temperature value in a water tank in a third area, and calculating a current dew point temperature value and a water temperature value to be set according to the actual temperature value and the actual humidity value of the third area;

Setting a water temperature value as a current dew point temperature value-dew point temperature deviation value;

the dew point temperature deviation value is determined by an integral algorithm according to the current humidity value and the target humidity value, the dew point temperature deviation value is increased or decreased by comparing the magnitude relation of the current humidity value and the target humidity value, and the dew point temperature deviation value is zero when the machine is started;

starting the variable frequency compressor component at a set frequency, and refrigerating water in the water tank through the immersion evaporator until the actual water temperature value in the water tank is the same as the set water temperature value; starting up a circulating water pump positioned in the water tank at a set flow rate to circularly supply water to the heat exchanger for continuous refrigeration; starting the air inducing fan to generate circulating air flow at a set duty ratio;

step three, judging the magnitude relation between the measured actual temperature value and the set temperature

1) If the actual temperature value is larger than the target temperature value and refrigeration is needed, the duty ratio of the induced draft fan is increased to control the rotation speed of the induced draft fan to be increased so as to carry out a rapid refrigeration process;

2) if the actual temperature value is smaller than the target temperature value and needs to be heated, the heating assembly is started while the duty ratio of the induced air fan is kept so as to carry out a rapid heating process;

Step four, judging the relation between the actual humidity value and the set humidity

1) Humidification is required if the actual humidity value is less than the target humidity value,

if the actual humidity value is continuously smaller than the target humidity value, the dew point temperature deviation value is decreased gradually until the value is zero, the set water temperature value is increased, and the required water temperature value is obtained by controlling the variable frequency compressor to adjust;

when the deviation value of the dew point temperature is zero, the actual humidity value is still smaller than the target humidity value, the humidifying device is started to spray water in the water tank onto the surface of the heat exchanger, and a high-humidity environment is formed at the heat exchanger;

in the process of increasing the temperature value in the water tank, synchronously and correspondingly increasing the duty ratio of the induced draft fan to control the rotation speed of the induced draft fan to increase so as to ensure the dynamic balance of the refrigerating capacity;

2) dehumidification is required if the actual humidity value is greater than the target humidity value,

if the actual humidity value is continuously larger than the target humidity value, the dew point temperature deviation value is decreased, the set water temperature value is reduced, and the required water temperature value is obtained by controlling the variable frequency compressor to adjust;

when the surface temperature of the heat exchanger is lower than the dew point temperature, water molecules in the circulating air flow are condensed when meeting the low-temperature heat exchanger, so that the humidity is reduced;

in the process of reducing the temperature value in the water tank, synchronously and correspondingly reducing the duty ratio of the induced draft fan to control the reduction of the rotating speed of the induced draft fan so as to ensure the dynamic balance of the refrigerating capacity; or, the duty ratio of the induced draft fan is kept, and meanwhile, the heating assembly is started to ensure dynamic balance of refrigerating capacity.

10. The control method as set forth in claim 9, wherein the output flow rate of the circulating water pump is increased or decreased by a combination control during cooling, heating, dehumidifying and humidifying.

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