CN219640636U - Heat pump dehumidification dryer - Google Patents

Abstract

The utility model discloses a heat pump dehumidification dryer which comprises a refrigerant circulation flow path, wherein a compressor, a condenser, a throttle valve, an evaporator and a gas-liquid separator are arranged on the refrigerant circulation flow path; the part of the refrigerant circulation flow path between the condenser and the throttle valve is a supercooling pipe section which is arranged on the water receiving disc; the air conditioner also comprises a gas flow path, wherein the moist air sequentially passes through the heat exchanger, the evaporator, the supercooling pipe section and the condenser. The device is characterized in that the gas forms a low-temperature area after being cooled and dehumidified by the evaporator, and the high-temperature liquid refrigerant in the supercooling pipe section passes through double supercooling when passing through the low-temperature area and the water receiving disc, so that the enthalpy and dryness of the refrigerant in the refrigerant circulation flow path are reduced, the heat absorption capacity of the refrigerant in the evaporator is increased, the condensation water quantity is increased, and the refrigerating capacity and the dehumidifying capacity of a unit are increased.

Description

Heat pump dehumidification dryer

Technical Field

The utility model relates to the technical field of air source heat pumps, in particular to a heat pump dehumidification dryer.

Background

The existing heat pump dehumidifying dryer mainly aims at removing water vapor in internal circulating air, so that the effect that air can continuously absorb water of materials to dry the materials is achieved. In the existing heat pump dehumidification dryer, high-temperature dry air produced by a heat pump condenser exchanges heat with wet materials, moisture in the wet materials is extracted to form warm wet air, the warm wet air returns to a heat pump evaporator, water vapor is filtered out by cooling and dehumidification in the evaporator, the moisture in the wet materials is condensed into water, and then the water is discharged through a water receiving disc.

When the heat pump dehumidification dryer unit is used in a plurality of low-temperature areas, low-temperature condensed water generated by unit dehumidification is easy to solidify into ice when the unit is operated and stopped, so that a water receiving disc and a water outlet are blocked, and normal discharge of the condensed water generated by subsequent unit dehumidification is affected. The unit runs for a long time under the state, so that condensed water can overflow out of the water receiving disc and enter other areas inside the unit, the drying quality of the unit is affected, and potential safety hazards of the unit exist. Some heat pump dehumidification dryers prevent condensation water from freezing by adding electrical heating in the water pan, but at the same time power consumption of the heat pump dehumidification dryer is increased.

Patent document publication No. CN206890918U discloses a heat pump device for preventing water pan from freezing, specifically including a compressor, a condenser, an evaporator, a first throttling device, a four-way valve and a high Wen Yeguan; the compressor, the condenser, the evaporator and the first throttling device form a circulation loop; the compressor is connected with the condenser and the evaporator through the four-way valve; the condenser outlet is connected with the first throttling device through the high-temperature liquid pipe, and the first throttling device is connected with the evaporator; the high-temperature liquid pipe is closely attached to a water receiving tray arranged below the evaporator.

In the prior art, the high-temperature refrigerant discharged from the condenser contacts the water receiving disc to exchange heat, so that the freezing is prevented; however, the condensed water generated by dehumidification of the unit is directly discharged, so that the energy in the condensed water cannot be utilized, and the energy waste is caused.

Disclosure of Invention

The utility model aims to solve the problem of energy waste caused by unavailable heat of condensed water in the prior art, and aims to provide a heat pump dehumidifying dryer which can increase the dehumidifying amount, heating amount and reduce energy consumption of the heat pump dehumidifying dryer.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a heat pump dehumidification dryer comprises a refrigerant circulation flow path, wherein a compressor, a condenser, a throttle valve, an evaporator and a gas-liquid separator are arranged on the refrigerant circulation flow path; the part of the refrigerant circulation flow path between the condenser and the throttle valve is a supercooling pipe section which is arranged on the water receiving disc; the air conditioner also comprises a gas flow path, wherein the moist air sequentially passes through the heat exchanger, the evaporator, the supercooling pipe section and the condenser.

Preferably, the gas passing through the supercooled pipe section passes through the heat exchanger again and then enters the condenser.

Preferably, the supercooling pipe section is located above the water receiving tray.

Preferably, the air flow path comprises an air inlet and an air outlet, the air inlet and the air outlet are communicated with the drying room, and the fan is arranged at the air inlet.

Preferably, the air outlet is provided with an electric heater.

The technical scheme of the utility model has the beneficial effects that: the gas forms a low-temperature area after being cooled and dehumidified by the evaporator, and the high-temperature liquid refrigerant in the supercooling pipe section passes through double supercooling when passing through the low-temperature area and the water receiving disc, so that the enthalpy and dryness of the refrigerant in the refrigerant circulation flow path are reduced, the heat absorption capacity of the refrigerant in the evaporator is increased, the condensation quantity is increased, and the refrigerating capacity and the dehumidifying capacity of a unit are increased.

Drawings

Fig. 1 is a schematic structural view of a heat pump dehumidifying dryer.

Reference numerals: 1. a compressor; 2. a condenser; 3. a throttle valve; 4. an evaporator; 5. a gas-liquid separator; 6. a heat exchanger; 7. a water receiving tray; 10. a refrigerant circulation circuit; 20. a gas flow path; 30. supercooling pipe section.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Examples

The heat pump dehumidification dryer as shown in fig. 1 comprises a refrigerant circulation flow path 10, wherein a compressor 1, a condenser 2, a throttle valve 3, an evaporator 4 and a gas-liquid separator 5 are arranged on the refrigerant circulation flow path 10; the part of the refrigerant circulation flow path 10 between the condenser 2 and the throttle valve 3 is a supercooling pipe section 30, and the supercooling pipe section 30 is arranged on the water receiving disc 7; also included is a gas flow path 20 through which the humidified air passes sequentially through the heat exchanger 6, evaporator 4, subcooling tube section 30 and condenser 2.

When the unit operates, the high-temperature liquid refrigerant from the condenser exchanges heat with the low-temperature gas from the evaporator in the area when passing through the supercooling pipe section, so that the high-temperature liquid refrigerant in the supercooling pipe section is supercooled; when the unit runs for a period of time, condensed water is generated on the evaporator and flows into the water receiving disc, and at the moment, the high-temperature liquid refrigerant in the supercooling pipe section exchanges heat with the low-temperature condensed water in the water receiving disc at the same time, so that the high-temperature liquid refrigerant in the supercooling pipe section is further supercooled; at the moment, the high-temperature liquid refrigerant in the supercooling pipe section is subjected to double supercooling, so that the enthalpy and dryness of the refrigerant in the refrigerant circulation flow path are reduced, the heat absorption capacity of the refrigerant in the evaporator is increased, the condensation water quantity is increased, and the refrigerating capacity and the dehumidifying capacity of the unit are increased; when the unit is stopped in a low-temperature environment and the water-collecting tray is frozen, the high-temperature liquid refrigerant in the supercooling pipe section exchanges heat with the condensed water and ice in the water-collecting tray when the unit is started to operate, and the quick deicing can be realized when the refrigerant in the refrigerant circulation flow path is supercooled, so that the operation reliability of the unit is ensured.

It is further preferred that the gas passing through the supercooling pipe section 30 passes through the heat exchanger 6 again to enter the condenser 2. Therefore, the heat exchange efficiency and the dehumidification efficiency are guaranteed, the energy loss is reduced, and the energy efficiency of the unit is improved.

It is further preferred that the supercooled pipe section 30 is located above the water receiving tray 7.

Further preferably, the air flow path 20 includes an air inlet and an air outlet, both of which are communicated with the drying room, and the fan is located at the air inlet. So set up, adopt the form of convulsions, take moist air in the stoving room out to guarantee drying efficiency. Further preferably, the air outlet is provided with an electric heater. So, can stabilize air-out temperature, guarantee the temperature in the stoving room, stabilize drying efficiency.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.

Claims (5)

1. A heat pump dehumidification drying-machine, characterized in that: the device comprises a refrigerant circulation flow path (10), wherein a compressor (1), a condenser (2), a throttle valve (3), an evaporator (4) and a gas-liquid separator (5) are arranged on the refrigerant circulation flow path (10); a part of the refrigerant circulation flow path (10) between the condenser (2) and the throttle valve (3) is a supercooling pipe section (30), and the supercooling pipe section (30) is arranged on the water receiving disc (7);

the air conditioner further comprises a gas flow path (20), wherein the moist air sequentially passes through the heat exchanger (6), the evaporator (4), the supercooling pipe section (30) and the condenser (2).

2. A heat pump dehumidifying dryer as claimed in claim 1, wherein: the gas passing through the supercooling pipe section (30) passes through the heat exchanger (6) again and then enters the condenser (2).

3. A heat pump dehumidifying dryer as claimed in claim 1, wherein: the supercooling pipe section (30) is positioned above the water receiving disc (7).

4. A heat pump dehumidifying dryer as claimed in claim 1, wherein: the air flow path (20) comprises an air inlet and an air outlet, the air inlet and the air outlet are communicated with the drying room, and the fan is arranged at the air inlet.

5. The heat pump dehumidifying dryer as claimed in claim 4, wherein: the air outlet is provided with an electric heater.