CN219454111U

CN219454111U - Fresh air dehumidifier with two-stage evaporation adjustment function

Info

Publication number: CN219454111U
Application number: CN202223541267.0U
Authority: CN
Inventors: 姚永明; 刘庆利
Original assignee: Jiangsu Gaoke Applied Science Research Institute Co ltd
Current assignee: Jiangsu Gaoke Applied Science Research Institute Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-08-01
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a two-stage evaporation-regulated fresh air dehumidifier. The device comprises a compressor, wherein an outlet of the compressor is respectively connected with an outdoor condenser and one end of a first electromagnetic valve, the other end of the outdoor condenser is connected with one end of a first expansion valve, the other end of the first electromagnetic valve is connected with one end of an indoor condenser, the other end of the indoor condenser is sequentially connected with a second expansion valve and one end of a one-way valve, the other end of the one-way valve is connected with the other end of the first expansion valve, the other end of the first expansion valve is respectively connected with one ends of a first evaporator and a second evaporator, the other end of the first evaporator is connected with one end of the second electromagnetic valve, and the other ends of the second electromagnetic valve and the second evaporator are connected with an inlet of the compressor. The utility model can realize multi-mode switching operation of classification, working condition division, refrigeration, dehumidifier, temperature adjustment and heat pump.

Description

Fresh air dehumidifier with two-stage evaporation adjustment function

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a two-stage evaporation-regulated fresh air dehumidifier.

Background

At present, five constant systems are adopted in middle-high-end houses and villas, generally, a radiation suspended ceiling air conditioning system is combined with a fresh air dehumidifier, an independent fresh air system bears wet load, and radiation bears heat load. In order to prevent the dew condensation phenomenon of the radiation suspended ceiling, the requirement on the fresh air dehumidifier is particularly high, and the absolute moisture content of the supplied air is required to be lower than 8g/kg of dry air. At the moment, the dehumidified air has lower temperature and is directly sent into an air-conditioning room to cause dew condensation easily; the lower temperature is sent into an air-conditioning room, so that people feel uncomfortable; therefore, the temperature of the deeply dehumidified air is generally required to be raised, but if an external heat source is adopted for raising the temperature, the cold and the heat are offset, and energy waste exists.

The fresh air with high temperature and high humidity outside is processed to dry air with absolute moisture content lower than 8g/kg, the air supply temperature is set at 18-22 ℃ comfort level, the enthalpy difference is large before and after the processing, and a unit with requirements on air supply temperature and humidity is arranged in the conventional way under the condition of no external cold source, or a plurality of refrigeration systems are arranged to bear loads of different temperature and humidity intervals, the system and the installation are complex, the system and the installation are unsuitable under the condition of limited installation space of a household unit, or primary evaporation is adopted, and the unit dehumidification requirement is met by using the lowest evaporation temperature. The problems of unstable air supply temperature, complex refrigeration system, reduced performance coefficient of the refrigeration system and the like are caused by the mode.

Especially, when the fresh air dehumidifier group with small air quantity is free from an external cold source and free from exhaust air and can be used, the primary compressor type is adopted, so that the fresh air dehumidifier group with high energy efficiency and deep dehumidification capability is provided, and the fresh air dehumidifier group is suitable for various working condition environments, meets comfort requirements, is energy-saving and is suitable for independent temperature and humidity control air conditioning systems, and is a technical problem to be solved by a person skilled in the art.

The utility model discloses a new trend dehumidifier suitable for independent control air conditioning system of humiture "2022208214102" utilizes single-stage compressor, multistage evaporation, realizes the refrigeration dehumidification mode of degree of depth, reaches the purpose that improves whole energy efficiency, degree of depth dehumidification.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a two-stage evaporation-regulated fresh air dehumidifier.

In order to achieve the above purpose, the utility model provides a two-stage evaporation-regulated fresh air dehumidifier, which comprises a compressor, wherein an outlet of the compressor is respectively connected with an outdoor condenser and one end of a first electromagnetic valve, the other end of the outdoor condenser is connected with one end of a first expansion valve, the other end of the first electromagnetic valve is connected with one end of an indoor condenser, the other end of the indoor condenser is sequentially connected with one end of a second expansion valve and a one-way valve, the other end of the one-way valve is connected with the other end of the first expansion valve, the other end of the first expansion valve is respectively connected with one ends of the first evaporator and the second evaporator, the other ends of the first evaporator and the second evaporator are connected with an inlet of the compressor, and the first evaporator, the second evaporator and the indoor condenser are sequentially arranged in a fresh air treatment channel.

Further, the inlet and the outlet of the compressor are connected with a four-way reversing valve, and the four-way reversing valve is respectively connected with an outdoor condenser, a first evaporator and a second evaporator.

Further, a heat recovery module is arranged at the front side of the first evaporator, and an exhaust fan is arranged at one side of the heat recovery module.

Further, the outdoor heat exchanger is an air-cooled outdoor heat exchanger, and an outdoor fan is arranged on one side of the outdoor heat exchanger.

The beneficial effects are that: 1. according to the utility model, the evaporators are arranged as the first evaporator and the second evaporator, so that a refrigerating mode of one compressor and two-stage evaporation is realized, and the air is subjected to graded cooling and dehumidifying treatment;

2. according to the two-stage evaporator, the temperature of the same evaporator and the different treatment states are realized according to the different rows of air treatment state points, the first evaporator adopts dry heat exchange to treat sensible heat, and the second evaporator adopts a wet surface mode to treat latent heat;

3. the two-stage evaporators are in a parallel connection mode, and the second electromagnetic valve can be turned off in seasons with small load, so that only the second evaporator works, the flow rate of the refrigerant is controlled, and the oil return effect of the unit is ensured;

4. the air supply temperature is regulated by controlling the opening of the second electronic expansion valve;

5. according to the utility model, the condensing heat is processed in multiple directions, the flow of the indoor part is regulated according to the temperature rise requirement, and the redundant part is discharged out of the room by the outdoor condenser, so that the condensing temperature is effectively reduced, and the energy efficiency of the unit is improved;

6. the second electronic expansion valve not only plays a role in expansion throttling, but also has a role in controlling the refrigerating capacity and the flow, and is a simple and efficient refrigerating system;

7. the fresh air dehumidifier can be integrally or detachably mounted, and is suitable for various mounting places;

8. the unit can be used for grading, working condition division, refrigeration, dehumidifier, temperature adjustment and heat pump multi-mode switching.

Drawings

FIG. 1 is a schematic diagram of a dual stage evaporation regulated fresh air dehumidifier;

fig. 2 is a schematic structural diagram of a two-stage evaporation-regulated fresh air dehumidifier with a heat recovery module.

Detailed Description

The utility model will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the utility model, it being understood that these examples are only intended to illustrate the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1, the embodiment of the utility model provides a two-stage evaporation-regulated fresh air dehumidifier, which comprises a compressor 1, wherein an outlet of the compressor 1 is respectively connected with an outdoor condenser 4 and one end of a first electromagnetic valve 3, the other end of the outdoor condenser 4 is connected with one end of a first expansion valve 6, the other end of the first electromagnetic valve 3 is connected with one end of an indoor condenser 7, the other end of the indoor condenser 7 is sequentially connected with one end of a second expansion valve 8 and one end of a one-way valve 9, the other end of the one-way valve 9 is sequentially connected with the other end of the first expansion valve 6, the other end of the first expansion valve 6 is respectively connected with one ends of the first and second evaporators 11 and 10, the other end of the first evaporator 11 is connected with one end of a second electromagnetic valve 12, the other ends of the second electromagnetic valve 12 and the second evaporator 10 are sequentially arranged in a fresh air treatment channel for treating the fresh air.

In order to realize the heat pump function, the inlet and the outlet of the compressor 1 are connected with a four-way reversing valve 2, and the four-way reversing valve 2 is respectively connected with an outdoor condenser 4, a first evaporator 11 and a second evaporator 10.

Referring to fig. 2, with exhaust air in practical use, a heat recovery module 14 may be provided at the front side of the first evaporator 11, and an exhaust fan 13 may be provided at one side of the heat recovery module 14. The exhaust fan 13 can lead out indoor air, and the indoor air exchanges heat with fresh air when flowing through the heat recovery module 14, so that energy in exhaust air can be recovered.

The outdoor heat exchanger 4 of the embodiment of the utility model is an air-cooled outdoor heat exchanger, and one side of the outdoor heat exchanger 4 is provided with an outdoor fan 5.

The fresh air dehumidifier can be of an integrated structure or of a split structure. If the air conditioner is of an integral structure, the compressor 1, the outdoor condenser 4 and the heat exchange fan 5 are arranged in independent channels separated from the fresh air treatment channel; if the structure is split type, the compressor 1, the outdoor condenser 4 and the heat exchange fan 5 are arranged outdoors.

The fresh air dehumidifier can be of an integrated structure or of a split structure. If the air conditioner is of an integral structure, the compressor 1, the outdoor condenser 4 and the heat exchange fan 5 are arranged in independent channels separated from the fresh air treatment channel; if the structure is split type, the compressor 1, the outdoor condenser 4 and the heat exchange fan 5 are arranged outdoors. In addition, in the above embodiments, all components of the refrigeration cycle are not fully shown, and in the implementation process, the components of the refrigeration system such as the drying filter, the liquid storage device, the oil separator, the air conditioning valve and the like are not considered to be substantially improved, and the utility model is not limited to the protection scope of the utility model.

Working principle: the dehumidifier of the utility model has the operating conditions of temperature adjustment, dehumidification, temperature reduction, dehumidification, heating and the like.

When the temperature and humidity are regulated and dehumidified, the four-way reversing valve 2 is not electrified, part or all of high-temperature and high-pressure gas discharged by the compressor 1 enters the outdoor condenser 4 through the four-way reversing valve 2, the outdoor fan 5 is intermittently or in variable air volume operation, the heat dissipation capacity of the outdoor condenser 4 is regulated, the refrigerant emits heat and condenses into high-pressure liquid, the liquid is throttled into low-pressure liquid through the first electronic expansion valve 6, the low-pressure liquid is combined with the liquid throttled through the second electronic expansion valve 8 after entering the indoor condenser 7 through the first electromagnetic valve 3, and then enters the first evaporator 11 and the second evaporator 10 to absorb heat and evaporate into low-pressure gas, and the low-pressure gas is sucked by the compressor 1 through the four-way reversing valve 2 to complete refrigeration cycle. In the process, the flow of the refrigerant passing through the first electromagnetic valve 3, the indoor condenser 7 and the second electronic expansion valve 8 is controlled, and the air outlet temperature of the wet machine is eradicated. The refrigerant flow in the first evaporator 11 and the second evaporator 10 is designed according to the proportion of the evaporators, different flow paths and tube lengths are adopted in the evaporator, and the same evaporator temperature is adopted, so that two-stage evaporation and double-cold source type refrigeration dehumidification are realized.

When the temperature is reduced and dehumidification is carried out, the four-way reversing valve 2 is not electrified, and the first electromagnetic valve 3 is not electrified to operate. All high-temperature high-pressure gas discharged by the compressor 1 enters the outdoor condenser 4 through the four-way reversing valve 2, at the moment, the outdoor fan 5 is in intermittent or variable-air-volume operation to control the condensing pressure of the refrigerating system, the refrigerant emits heat to be condensed into high-pressure liquid, the liquid throttled into low-pressure liquid through the first electronic expansion valve 6 enters the first evaporator 11 and the second evaporator 10 to absorb heat and evaporate into low-pressure gas, and the low-pressure gas is sucked by the compressor 1 through the four-way reversing valve 2 to complete the refrigerating cycle.

In the transition season, when the heat and humidity load is smaller, the second electromagnetic valve 12 is turned off and the first evaporator 11 does not work when the temperature-adjusting dehumidification and temperature-reducing dehumidification modes are operated, so that the refrigerant passes through the second evaporator 10, the flow rate of the refrigerant is ensured, and the oil return effect of the unit is ensured.

When the four-way reversing valve 2 is not electrified during operation temperature rising and dehumidification, the first electronic expansion valve 6 is turned off, the outdoor fan 5 is powered off and does not work, all high-temperature and high-pressure gas discharged by the compressor 1 enters the indoor condenser 7 through the first electromagnetic valve 3, the refrigerant emits heat and condenses into high-pressure liquid, the liquid throttled into low-pressure liquid through the second electronic expansion valve 8 enters the first evaporator 11 and the second evaporator 10 to absorb heat and evaporate into low-pressure gas, and the low-pressure gas is sucked by the compressor 1 through the four-way reversing valve 2 to complete refrigeration cycle.

When the four-way reversing valve 2 is in operation heating, the four-way reversing valve 2 is electrified, and the first electromagnetic valve 3 is not electrified to operate. The high-temperature high-pressure gas discharged by the compressor 1 enters the first evaporator 11 and the second evaporator 10 through the four-way reversing valve 2, the high-temperature high-pressure gas discharged by the compressor 1 emits heat and is condensed into high-pressure liquid, the liquid throttled into low-pressure liquid by the first electronic expansion valve 6 enters the outdoor condenser 4 to absorb heat and evaporate into low-pressure gas, and the low-pressure gas is sucked by the compressor 1 through the four-way reversing valve 2 to complete refrigeration cycle.

In the above operation mode, if the structure of fig. 2 is adopted, the fresh air entering the first evaporator 11 is pretreated by the heat recovery module 14.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to a person of ordinary skill in the art. Modifications and alterations may be made without departing from the principles of this utility model, and such modifications and alterations should also be considered as being within the scope of the utility model.

Claims

1. The utility model provides a new trend dehumidifier of doublestage evaporation regulation, its characterized in that, includes the compressor, the export of compressor is connected with the one end of outdoor condenser and first solenoid valve respectively, the other end of outdoor condenser is connected with the one end of first expansion valve, the other end of first solenoid valve is connected with the one end of indoor condenser, the other end of indoor condenser is connected gradually with the one end of second expansion valve and check valve, the other end of check valve is connected with the other end of first expansion valve, the other end of first expansion valve is connected with the one end of first evaporator and second evaporator respectively, the other end of first evaporator is connected with the one end of second solenoid valve, the other end of second solenoid valve and second evaporator is connected with the entry linkage of compressor, first evaporator, second evaporator and indoor condenser set gradually in fresh air treatment passageway.

2. The dual stage evaporation-regulated fresh air dehumidifier of claim 1, wherein the inlet and outlet of the compressor are connected with a four-way reversing valve, and the four-way reversing valve is connected with an outdoor condenser, a first evaporator and a second evaporator, respectively.

3. The two-stage evaporation-regulated fresh air dehumidifier according to claim 1, wherein a heat recovery module is arranged at the front side of the first evaporator, and an exhaust fan is arranged at one side of the heat recovery module.

4. The two-stage evaporation-regulated fresh air dehumidifier according to claim 2, wherein the outdoor condenser is an air-cooled outdoor heat exchanger, and an outdoor fan is arranged at one side of the outdoor condenser.