KR200337514Y1 - Refrigrated dehumidifiers - Google Patents

Abstract

The present invention relates to a dehumidifier that removes moisture in the air by cooling and condensing to lower humidity in a predetermined space. More specifically, an antifreeze is injected into an inside of a cooling condenser in which an evaporating coil is installed to inject and evaporate a refrigerant. It relates to a cooling dehumidifier to prevent the surface of the cooling condenser to freeze despite the freezing power to perform a continuous dehumidification function without a separate defrosting device.

The present invention is installed in the spiral support groove formed in the inner bottom surface of the rectangular (cylindrical) storage tank, the evaporation coil is inserted and the antifreeze is injected into the cooling condensing fins to prevent the freezing of the cooling condensing fins at the same time. A cooling condenser in which an air suction pipe which flows to the center portion along the fin flow path between the cooling condensation pins and delivers only the cool and dehumidified air to the room penetrates the center;

A reservoir supporter disposed at the bottom of the cooling condenser and having a condensate receiver configured to guide condensate generated during cooling condensation to the reservoir, and having guide protrusions formed at both inner walls thereof;

Guide rails formed at both ends of the guide protrusion are guided to provide a reservoir that is stably fitted to the reservoir support.

Description

Cooled dehumidifiers {Refrigrated dehumidifiers}

The present invention relates to a dehumidifier that removes moisture in the air by cooling and condensing to lower humidity in a predetermined space. More specifically, an antifreeze is injected into an inside of a cooling condenser in which an evaporating coil is installed to inject and evaporate a refrigerant. It relates to a cooling dehumidifier to prevent the surface of the cooling condenser to freeze despite the freezing power to perform a continuous dehumidification function without a separate defrosting device.

In general, the dehumidification method for removing moisture in wet air is a cooling method of condensing and separating water vapor below the dew point temperature by cooling, and a compression type of condensation separation above a saturation point of water by increasing the partial pressure of water vapor by compression. A dehumidification system is constructed by combining a method, an absorption method of dehumidification using a liquid absorbent, an adsorption method of dehumidification using a porous adsorbent, or a combination of two or more kinds thereof.

Here, the cooling dehumidifier using the refrigerant compressor includes a compressor (1) for compressing the refrigerant gas, a condenser (2) for liquefying the refrigerant gas compressed through the compressor (1), and the A capillary tube 3 for depressurizing the refrigerant liquid condensed in the condenser 2 and an evaporator 4 for cooling and condensing hot and humid air using the refrigerant liquid expanded through the capillary tube 3.

The dehumidifier using the conventional refrigerant compressor having the above-described configuration, the hot and humid air sucked while the suction fan 5 rotates is cooled and condensed below the dew point while passing through the surface of the evaporator 4 cooled by the evaporation of the refrigerant. do.

Therefore, the moisture contained in the air is converted into condensed water formed by dew drops and collected naturally into the water reservoir (7) by the condensate receiver (6), the cooling, dehumidified dry air passing through the evaporator (4) While cooling the condenser 2 in the rear of the evaporator 4, the operation of reheating and sending it to the room is repeatedly performed.

However, the conventional cooling dehumidifier has a problem that frost is generated on the bottom surface of the evaporator due to subcooling during the evaporation process, thereby inhibiting heat transfer or blocking the flow of air, resulting in poor dehumidification and dehumidification ability. It was being caused.

In order to solve this problem, a separate defrosting device must be provided, and the defrosting device is automatically removed when the surface temperature of the evaporator 4 becomes 0 ° C or lower or the ambient room temperature becomes 18 ° C or lower so that the dehumidifier does not operate at low temperature. To stop the dehumidification operation of the dehumidifier, and when the temperature sensor detects a low temperature state, the hot gas of the condenser 2 is injected into the evaporator 4 through the solenoid valve 8 by the defrost timer for a predetermined time. After defrosting, after defrosting, defrosting devices are being proposed to repeatedly perform the process of normal operation until frost is produced.

At this time, the electronic defrosting device which stops the dehumidifying operation of the dehumidifier has a problem in that dehumidification can not be performed for a long time by simply performing defrosting with only indoor air, while hot gas of the condenser 2 is transferred through the solenoid valve 8. The latter defrosting device injected into the evaporator 4 has a very high noise level when the solenoid valve 8 operates, and when the solenoid valve 8 continuously operates, the refrigerant leaks, causing the performance of the dehumidifier to deteriorate. It was a situation.

The present invention is to solve the above problems, and to provide a technology for preventing the surface of the cooling condenser freezing despite the freezing power of the refrigerant evaporating by injecting antifreeze after inserting the evaporating coil into the cooling condenser. During dehumidification, the suctioned humid air flows along the cooling condensation pin installed at the bottom of the cooling condenser to the center and does not freeze. Smooth cooling and condensation are performed. The main purpose of the invention is to enable continuous dehumidification even without a device.

The present invention for achieving the desired purpose is that the evaporation coil is inserted into the support groove formed on the inner bottom surface and the antifreeze is injected into the cooling heat source to prevent freezing of condensate at the same time between the cooling condensation pins A cooling condenser in which an air suction pipe for flowing only the cool and dehumidified air flows into the center along the fin flow path penetrates through the center;

A reservoir supporter disposed at the bottom of the cooling condenser and having a condensate receiver configured to guide condensate generated during cooling condensation to the reservoir, and having guide protrusions formed at both inner walls thereof;

Guide rails formed at both ends of the guide protrusion are guided to provide a reservoir that is stably fitted to the reservoir support.

1 is an exploded perspective view of the main part of the present invention

Figure 2 is a longitudinal cross-sectional view of an embodiment of the present invention dehumidifier

Figure 3 is a longitudinal sectional view showing the internal structure of the present invention cooling condenser

Figure 4 is a plan cross-sectional view of the present invention cooling condenser

5 is a perspective view of one embodiment of the present invention cooling condensation pin

Figure 6 is a bottom view of the installation state of the present invention one embodiment cooling condensation pin

7 is a perspective view of another embodiment of the present invention condensation fin

Figure 8 is a bottom view of the installation state of another embodiment of the present invention cooling condensation pin

9 is a configuration diagram of a conventional cooling dehumidifier

[Explanation of symbols on the main parts of the drawings]

6,41: condensate receiver 7,50: reservoir

9: dehumidifier case 20: cooling condenser

23: cold storage tank 24: evaporation coil

25: support groove 27, 28: cooling condensation pin

27-2,28-2: Sump 29: Antifreeze

30: air suction pipe 40: reservoir support

43: guide protrusion 51: guide rail

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is characterized in that the antifreeze is injected in place of the water in the cold storage tank 23 in which the evaporation coil 24 is installed to prevent the surface of the cooling condenser 20 from freezing by excessive freezing force of the evaporating refrigerant. Make a point.

The constitution of the present invention for achieving the above-mentioned characteristic gist is a compressor (1) for compressing the refrigerant gas, a condenser (2) for liquefying the refrigerant gas compressed through the compressor (1), the condenser (2) In the dehumidifier comprising a capillary tube (3) for depressurizing the refrigerant liquid condensed in the evaporator and an evaporator (4) for cooling and condensing hot and humid air by using the refrigerant liquid expanded through the capillary tube (3). Instead of 4), a new condensation cooling condenser 20, which functions to dehumidify the humid air and prevent freezing from occurring on the cooling condensation pins 27 and 28, may be applied, while the cooling condenser 20 may be applied. It is disposed at the bottom of the reservoir to guide the condensate generated during the cooling condensate to the reservoir (50) and to support the reservoir 50 in a stable manner is provided with a stable fitting in the reservoir (50) To collect condensate Made doemeurosseo it provided with a water storage tank (50).

It will be described in more detail to enable the present invention made of the schematic configuration described above.

First, the configuration of the cooling condenser 20, which is a key technology of the present invention, has a rectangular or cylindrical shape inside the upper side of the dehumidifier case 9 as shown in FIGS. 21 is provided with a cold storage tank 23 is integrally attached to the upper cover 22 is formed.

On the inner bottom surface of the cold storage tank 23, the support groove 25 for installing the evaporation coil 24 is spirally wound around the center and the evaporation coil 24 is installed in the support groove 25. After being installed in a fitted state so as to be in close contact with the bottom surface without flow, it is communicated to the outside of the cold storage tank 23 through the coil through-hole 26 formed on one side, and after the evaporating coil 24 is installed, the coil through-hole 26. The open area around it is sealed by welding.

Here, the storage tank 23 is made of a material having excellent thermal conductivity (aluminum, etc.) so that the low temperature freezing force by the evaporation coil 24 can be directly transmitted to the cooling condensation pins 27 and 28 integrally installed on the bottom. In the meantime, the reason why the evaporation coil 24 is installed to be wound in a horizontal spiral shape is to reduce the area of the upper and lower portions occupied by the evaporation coil 24, thereby making the cooling condenser 20 more compact. The reason for this is that it can be miniaturized, and the reason why the separate support groove 25 is formed in which the evaporation coil 24 is fitted is that no part of the evaporation coil 24 is lifted from the bottom surface of the cold storage tank 23. In order to maximize the heat transfer efficiency delivered to the cooling condensation pins (27) 28 by being completely in close contact with the bottom surface of the cold storage tank (23).

The antifreeze 29 is injected into the accumulator 23 instead of water through the inlet 21. The antifreeze 29 accumulates the cold heat source at low temperature during dehumidification and prevents condensation water generated at the cooling condensation pins 27 and 28 from freezing by the freezing force of the refrigerant evaporated from the evaporation coil 24. Play a role.

Therefore, the cooling condenser 20 of the present invention performs a dehumidification function of cooling and condensing the wet air, and cools the antifreeze 29 at a low temperature and simultaneously uses the antifreeze 29 to condense the cooling condensation pins 27 and 28. It also serves as a function to prevent freezing between them.

On the other hand, a plurality of cooling condensation pins 27, 28 are integrally installed on the bottom surface of the storage tank 23, and the air suction pipe 30 penetrates inside the center. Therefore, the wet air sucked from the outer front circumference of the storage cooling tank 23 by the suction force of the suction fan 5 flows to the center along the fin flow path 31 between the cooling condensation fins 27 and 28. After cooling and dehumidifying through heat exchange, the cooled and dehumidified air can be sent out to the room along the discharge path 10 through the air suction pipe 30.

Herein, the structure of the cooling condensation pins 27 and 28 applied to the present invention will be described.

First, the electron cooling condensation pins 27 are radially attached to the bottom surface of the cooling condenser 20 around the air suction pipe 30 as shown in FIGS. 5 to 6, respectively. Silver is installed so that a plurality of pin blades (27-1) having a plate-like cross at a predetermined interval on the outward side so that the contact area with air is enlarged, and the bottom of the pin blades (27-1) by the surface tension condensed water Has a sharper mountain shape so that the condensate can freely fall into the condensate receiver 41 and be collected into the reservoir 50 by increasing its own weight due to the cohesive force of the condensate than the attachment force to be attached to the pin blade 27-1. A collecting protrusion 27-2 is integrally formed, and an inward side is formed with a cutting surface 27-3 which is cut inclined upward while going inward.

The cutting surface 27-3 reduces the inward side area of the cooling condensation pin 27 to maintain a thermal equilibrium with the outward side and prevents the loss of the cooling heat source.

On the other hand, the latter cooling condensation pin 28 is a plurality of the grid is attached to the bottom of the cooling condenser 20 around the air suction pipe 30 in the shape of a cylinder as shown in Figure 7 to 8, each cooling The condensation pin 28 has a plurality of pin blades 28-1 integrally installed to be inclined radially downward on the outer periphery so that the contact area with air is enlarged, and the condensate pins 28 are formed at the bottom by surface tension. -1) has a conical water collecting protrusion 28-2 which makes the condensate easily freely dropping into the condensate receiver 41 to be collected into the reservoir 50 by increasing the self-weight due to the cohesive force of the condensate rather than the attachment force to be attached to It is formed integrally.

Therefore, during the dehumidification operation, the wet air sucked in through the suction port 11 formed at the center circumference of the dehumidifier case 9 by the operation of the suction fan 5 has a fin flow path between the cooling condensation pins 27 and 28 ( 31) by cooling and dehumidifying through heat exchange while flowing from the outer circumference to the central part, it is possible to evenly dehumidify a large area in a faster time by sending it to the room through the air suction pipe 30.

The reservoir support 40 disposed at the bottom of the cooling condenser 20 has a condensate receiver 41 for guiding the condensate generated during cooling condensation to the reservoir 50 at the top thereof, and has a center of the condensate receiver 41. There is a through-hole 42 is formed, the inner wall is made of a structure in which a pair of guide projections 43 are formed.

The reservoir 50, which is stably fitted to the reservoir support 40, is provided with a collecting space for collecting condensate and is formed such that a pair of guide rails 51 protrude from both ends thereof so that the guide rail 51 is reservoir. Guided to the guide protrusion 43 of the support 40 is guided by the sliding can be installed to be installed stably.

On the other hand, the upper and the outer side of the cooling condenser 20 is installed to be wrapped with an insulator 12 to prevent heat loss.

In addition, a first temperature sensor 60 for sensing the temperature of the antifreeze 29 is installed inside the cooling condenser 20, and a second for sensing the fin surface temperature outside the cooling condensing pins 27 and 28. Since the temperature sensor 60a is installed, the drive of the compressor 1 is temporarily stopped by controlling to automatically cut off power to the compressor 1 when the user reaches a predetermined set temperature. It is possible to reduce the power consumption according to the operation of the compressor as well as to extend the life of the compressor (1).

It will be described for the dehumidification process of the humid air according to the present invention made in this configuration.

First, when the power is turned on, the compressor 1, the condenser 2, and the capillary tube 3 are sequentially operated, and the refrigerant liquid of the evaporation coil 24 evaporates, thereby cooling the antifreeze 29 stored in the cooling condenser 20 to a low temperature. The surface temperature of the cooling condensation pins 27 and 28 is drastically reduced at the same time as the cooling is performed.

At this time, the compressor 1 is configured to sense the set temperature of the first temperature sensor 60 for sensing the temperature of the antifreeze 29 injected into the cooling condenser 20 or the surface temperature of the cooling condensation pins 27 and 28. 2 Operate until the set temperature of the temperature sensor 60a is reached to cool the antifreeze 29 to low temperature, and then stop automatically.

That is, the ON / OFF of the compressor 1 detects the set temperature of the antifreeze 29 or the set temperature of the surfaces of the cooling condensation pins 27 and 28 by the first temperature sensor 60 and the second temperature sensor 60a. If the surface temperature rises and the drive set temperature of the compressor 1 is reached, the second temperature sensor 60a detects this and automatically restarts the compressor 1, thereby preventing the antifreeze 29 and the cooling condensation. The process of continuously cooling the fins 27 and 28 is repeatedly performed.

When the suction fan 5 is operated while the antifreeze 29 is cooled as described above, the wet air sucked through the suction port 11 installed at the center circumference of the dehumidifier case 9 is cooled condensation pins 27 and 28. Flows into the site.

The wet air flowing from the outer circumference to the central portion along the fin flow path 31 between the cooling condensation pins 27 and 28 is cooled and condensed through heat exchange, and the condensate generated in this process is naturally condensed into the condensate receiver 41. After falling, the water is collected in the reservoir 50.

In addition, the dehumidified dry air is guided to the air suction pipe 30 is supplied to the room along the discharge path (10).

Since the cooling dehumidifier of the present invention always cools the antifreeze 29 inside the cooling condenser 20 to a predetermined temperature before performing dehumidification and then performs dehumidification, the cooling condensation pins 27 and 28 are frozen. Since there is no work, it is possible to continuously dehumidify even without a separate defrosting device, and the inlet 11 may be formed around the center of the dehumidifier case 9 so that the entire room can be evenly dehumidified.

The present invention prevents the surface of the cooling condenser from freezing despite the freezing force of the refrigerant to be evaporated by the injection of the antifreeze into the cooling condenser in which the evaporating coil is inserted.

Therefore, the humid air sucked in the entire circumference flows to the central part along the cooling condensation pin installed on the bottom of the cooling condenser, and does not freeze, so that the cooling and condensation can be performed smoothly. At the same time, the entire room can be dehumidified evenly and quickly.

Claims (5)

A compressor (1) for compressing the refrigerant gas, a condenser (2) for liquefying the refrigerant gas compressed through the compressor (1), a capillary tube (3) for reducing the refrigerant liquid condensed in the condenser (2), In the dehumidifier composed of an evaporator (4) for cooling and condensing hot and humid air by using a refrigerant liquid expanded through the capillary tube (3), The evaporation coil 24 is inserted into the spiral support groove 25 formed in the inner bottom surface of the rectangular (cylindrical) storage cold storage tank 23, and the cooling heat source is cooled by cooling the condensing pins 27 and 28 at the same time. Anti-freeze (29) is injected to prevent freezing and flows to the central portion along the fin flow path 31 between the cooling condensation pins (27) and 28 installed on the bottom of the air suction pipe (30) for sending out only the cool and dehumidified air to the room A cooling condenser 20 penetrated through the center; The reservoir condenser support 41 is disposed on the bottom of the cooling condenser 20 and guides the condensate generated during the cooling condensation to the water storage tank 50, and guide protrusions 43 are formed on both inner walls thereof. ; Guide rails 51 formed at both ends of the guide protrusions 43 are guided to prevent freezing of the dehumidifier, characterized in that made of a reservoir 50 that is stably fitted to the reservoir support 40. The method according to claim 1, A plurality of cooling condensation pins 27 are radially attached integrally to the bottom of the cooling condenser 20 around the air suction pipe 30, while the cooling condensation pins 27 are formed on the bottom of the cooling condensing outwards. A plurality of pin blades (27-1) formed with the (27-2) is installed to cross at a predetermined interval, the cutting surface (27-3) to the rear side to prevent the loss of heat balance and cooling heat source inclined upward while going inwardly Cooled dehumidifier, characterized in that formed. The method according to claim 1, A plurality of cooling condensation pin 28 is attached to the bottom of the cooling condenser 20 in a lattice form integrally around the air suction pipe 30, while the cooling condensation pin 28 is a conical collecting protrusion 28 at the bottom. -2) is formed, the cooling dehumidifier characterized in that the plurality of pin blades 28-1 inclined radially downward inwardly on the outer periphery. The method according to claim 1, The cooling condenser 20 has a first temperature sensor 60 for detecting the temperature of the antifreeze therein, and a second temperature sensor 60a for detecting the surface temperature of the fins on the outside of the cooling condensation pins 27 and 28. Cooling dehumidifier characterized in that for controlling the power supplied to the compressor (1) by the set temperature. The method according to claim 1, Cooling condenser (20) is a cooling dehumidifier, characterized in that the suction inlet (11) for inhaling the air to be evenly dehumidified evenly throughout the room in a constant center all around the dehumidifier case (9).