CN209279281U - A kind of thermostatic and humidistatic air conditioning unit group - Google Patents

Abstract

The embodiment of the utility model discloses a constant temperature and humidity air conditioning unit, which belongs to the technical field of refrigeration. The constant temperature and humidity unit includes a fluorine system and an air system; the fluorine system includes a compressor, a first condenser, a second condenser, a control valve and an evaporator connected in sequence through pipelines; the outlet of the evaporator communicates with the inlet of the compressor, and the compressor The outlet of the machine communicates with the inlet of the first condenser; the air system includes a first fan, a sensible heat exchanger, an evaporator, a second condenser and a second fan connected in sequence through an air pipe, wherein the first fan is an induced The wind fan, the second fan is an exhaust fan. Control the temperature in the room by utilizing the condensation latent heat of the first condenser and the second condenser, without setting up a heating device, and using a sensible heat exchanger to reduce the temperature of the air entering the evaporator, reducing the heat load of the evaporator , Improve energy utilization and improve system energy efficiency.

Description

A constant temperature and humidity air conditioning unit

technical field

The utility model relates to the technical field of refrigeration, in particular to a constant temperature and humidity air conditioning unit.

Background technique

Constant temperature and humidity air conditioning units refer to air conditioning units that have strict requirements on temperature and humidity, and are affected by various factors such as air temperature, humidity, air mass flow and environmental conditions.

The prior art discloses a constant temperature and humidity air conditioning unit, including a water tank, a humidity control unit, a water-cooled evaporator, a fluorine-cooled evaporator, and a compressor. The water tank is provided with a water inlet and a water outlet. Fixed connection, the water tank is connected with the first water pump, the second water pump and the plate heat exchanger through the pipeline, and the water tank is connected with the water outlet of the humidity control unit through the pipeline. Heater, water-cooled evaporator and fluorine-cooled evaporator, the humidity control unit is connected to the outdoor unit through pipelines, the water-cooled evaporator is connected to the water outlet of the second water pump, and the fluorine-cooled evaporator is connected to the compressor and plate type The heat exchangers are connected, and the lower end of the compressor is equipped with a temperature adjustment unit.

Existing constant temperature and humidity air conditioning units generally use indoor heat exchangers for cooling or dehumidification. Since cooling is accompanied by dehumidification, when the humidity is too high and the temperature is appropriate, that is, only dehumidification is required, the temperature will also increase. As it decreases, it is necessary to run the electric heater again to ensure a constant temperature. Sometimes the temperature is too low and the humidity is too high. Using a high-power electric heater to control the temperature in this way results in high power consumption and low energy efficiency, which is not conducive to energy saving.

Utility model content

The embodiment of the utility model provides a constant temperature and humidity air conditioning unit to solve the problem of low energy utilization rate of the constant temperature and humidity air conditioning unit in the prior art. In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. This summary is not an overview, nor is it intended to identify key/critical elements or delineate the scope of these embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to the first aspect of the embodiment of the present invention, a constant temperature and humidity air conditioning unit is provided, including a fluorine system and an air system; the fluorine system includes a compressor, a first condenser, a second condenser, a control valves and evaporators;

The outlet of the evaporator communicates with the inlet of the compressor, and the outlet of the compressor communicates with the inlet of the first condenser;

The wind system includes a first fan, a sensible heat exchanger, an evaporator, a second condenser and a second fan sequentially connected through an air pipe, wherein the first fan is an induced draft fan, and the second fan is an exhaust fan.

In some optional embodiments, the control valve is an electronic expansion valve or a capillary.

In some optional embodiments, the constant temperature and humidity unit further includes a temperature and humidity sensor, and the temperature and humidity sensor is arranged in the middle of the room.

In some optional embodiments, the sensible heat exchanger includes a heat exchange core, and the heat exchange core is corrugated with mutually perpendicular air passages.

In some optional embodiments, the heat exchange core is made of hydrophilic aluminum foil.

In some optional embodiments, the constant temperature and humidity air conditioning unit further includes a water receiving pan, which is arranged below the evaporator.

In some optional embodiments, a drain is provided at the bottom of the water receiving tray, and a drain is installed at the drain.

In some optional embodiments, the drain pipe is a round pipe or a rectangular pipe, and its shape and size are adapted to those of the drain port.

The technical solution provided by the embodiment of the utility model may include the following beneficial effects:

The embodiment of the utility model realizes the control of the temperature in the room by using the condensation latent heat of the first condenser and the second condenser, without setting up a heating device, and using a sensible heat exchanger to reduce the temperature of the air entering the evaporator, reducing Reduce the heat load of the evaporator, improve the utilization rate of energy, and improve the energy efficiency of the system.

It should be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

Description of drawings

The accompanying drawings, which are incorporated in the specification and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and are used together with the specification to explain the principle of the utility model.

Fig. 1 is a schematic structural view of a constant temperature and humidity air conditioning unit according to an exemplary embodiment;

Description of drawings: 1. Compressor; 2. First condenser; 3. Second condenser; 4. Control valve; 5. Evaporator; 6. First fan; 7. Sensible heat exchanger; 8. Second Two fans; 9, temperature and humidity sensor; 10, humidifier.

Detailed ways

The following description and drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, relational terms such as first and second etc. are used only to distinguish one entity or structure from another without requiring or implying any actual relationship or relationship between these entities or structures. order. Various embodiments herein are described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of the various embodiments may be referred to each other.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical" , "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present utility model, unless otherwise stipulated and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be The internal communication between two elements may be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

The embodiment of the utility model provides a constant temperature and humidity air conditioning unit. Figure 1 is a schematic structural diagram of a constant temperature and humidity air conditioning unit according to an exemplary embodiment. As shown in Figure 1, the constant temperature and humidity air conditioning unit includes fluorine System and air system; the fluorine system includes a compressor 1, a first condenser 2, a second condenser 3, a control valve 4 and an evaporator 5 connected in sequence through pipelines;

The outlet of the evaporator 5 communicates with the inlet of the compressor 1, and the outlet of the compressor 1 communicates with the inlet of the first condenser 2;

The air system includes a first blower fan 6, a sensible heat exchanger 7, an evaporator 5, a second condenser 3 and a second blower fan 8 connected in sequence through an air duct, wherein the first blower blower 6 is an exhaust fan, and the second blower blower 8 is the induced draft fan.

The embodiment of the utility model realizes the control of the temperature in the room by using the condensation latent heat of the first condenser 2 and the second condenser 3, without setting up a heating device, and using the sensible heat exchanger 7 to reduce the air entering the evaporator 5 temperature, reduce the heat load of the evaporator 5, improve the utilization rate of energy, and improve the energy efficiency of the system.

In some optional embodiments, the control valve 4 is an electronic expansion valve or a capillary tube, and the refrigerant flow rate of the system is controlled by adjusting the opening of the control valve 4 .

In some optional embodiments, the sensible heat exchanger 7 includes a heat exchange core body, and the heat exchange core body is corrugated with mutually perpendicular air channels.

In some optional embodiments, the heat exchange core is made of hydrophilic aluminum foil.

Among them, the use of hydrophilic aluminum foil material can increase the heat exchange area, speed up the cooling and heating speed, and effectively avoid the noise caused by condensed water blocking the air flow.

In some optional embodiments, the constant-temperature and constant-humidity air-conditioning unit further includes a water receiving pan, which is arranged below the evaporator 5 .

Condensed water can be collected by setting a drip pan below the evaporator 5 .

In some optional embodiments, a drain is provided at the bottom of the water receiving tray, and a drain is installed at the drain.

By setting a drain port and installing a drain pipe at the drain port, the condensed water collected by the water tray can be discharged and the air humidity in the room can be reduced.

In some optional embodiments, the drain pipe is a round pipe or a rectangular pipe, and its shape and size are adapted to those of the drain port.

Among them, the size and shape of the drain pipe are adapted to the shape and size of the drain port to prevent the hidden danger of water leakage at the installation place.

The working process of the utility model embodiment:

For the fluorine system, the constant temperature and humidity unit is turned on, the compressor 1 is started, and the discharged high-temperature and high-pressure gas enters the first condenser 2. When the fan of the first condenser 2 does not meet the start-up conditions, the refrigerant in the first condenser 2 Natural cooling, then enters the second condenser 3, condenses under the action of the first fan 6, the condensed high-temperature liquid refrigerant is throttled by the control valve 4 and becomes a gas-liquid two-phase refrigerant, and enters the evaporator 5 to absorb heat into a gaseous state, completing a cycle.

Wherein the first condenser 2 plays the role of auxiliary condensation, and the latent heat of condensation of the second condenser 3 is the main heat source for room temperature rise.

When the temperature of the room reaches the set temperature, the fan of the first condenser 2 reaches the starting condition, and the fan of the first condenser 2 is turned on to maintain the set temperature of the room.

The humidifier 10 is used to increase the indoor humidity, which is controlled by the controller of the constant temperature and humidity unit. When the humidity is lower than the set humidity, the humidifier 10 is turned on to increase the indoor humidity.

For the wind system, the air with high temperature and humidity in the room is blown to the sensible heat exchanger 7 through the second fan 8, and cross-exchanges heat with the wind blown from the evaporator 5, reducing the heat load on the evaporator 5 side and improving In order to ensure the temperature of the air supply blown to the second condenser 3, the heat of condensation passing through the second condenser 3 realizes secondary temperature rise, and the air of a suitable temperature is blown to the room by the first fan 6.

In some optional embodiments, the constant temperature and humidity unit also includes a temperature and humidity sensor 9. The temperature and humidity sensor 9 is arranged in the middle of the room to monitor the temperature and humidity of the room and send it to the controller of the constant temperature and humidity unit. The controller controls the working state of the unit according to the comparison between the temperature and humidity data and the set data. When the temperature is lower than the set temperature, the first condenser 2 does not work, and the second condenser 3 works, and the transmission of condensation heat is used. Realize the rise of room temperature; when the humidity is lower than the set humidity, control the humidifier 10 to start working, and increase the humidity in the room; when the temperature is higher than the set temperature, turn on the fan of the first condenser 2, and the first condenser 2 work, bypass the condensation heat entering the room, and realize the reduction of room temperature; when the humidity is higher than the set humidity, dehumidification is carried out through the evaporator 5, and the condensed water in the water tray is discharged through the drain pipe to reduce the humidity .

The present invention is not limited to the structures which have been described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (8)

1. a kind of thermostatic and humidistatic air conditioning unit group, which is characterized in that including fluorine system system and wind system；The fluorine system system includes passing through pipe The sequentially connected compressor in road, the first condenser, the second condenser, control valve and evaporator；

The outlet of the evaporator is connected to the entrance of the compressor, outlet and first condenser of the compressor Entrance connection；

The wind system includes by sequentially connected first blower of air hose, sensible heat exchanger, the evaporator, described second cold Condenser and the second blower, wherein first blower is air inducing blower, and second blower is exhaust fan.

2. thermostatic and humidistatic air conditioning unit group according to claim 1, which is characterized in that the control valve be electric expansion valve or Person's capillary.

3. thermostatic and humidistatic air conditioning unit group according to claim 1, which is characterized in that the constant temperature and humidity unit further includes temperature Humidity sensor, the Temperature Humidity Sensor are set to the middle part in room.

4. thermostatic and humidistatic air conditioning unit group according to claim 1, which is characterized in that the sensible heat exchanger includes heat exchange core Body, the heat exchange core body are orthogonal air duct corrugation.

5. thermostatic and humidistatic air conditioning unit group according to claim 4, which is characterized in that the material of the heat exchange core body is hydrophilic Aluminium foil.

6. thermostatic and humidistatic air conditioning unit group according to claim 1, which is characterized in that the thermostatic and humidistatic air conditioning unit group is also wrapped Drip tray is included, the drip tray is set to the lower section of the evaporator.

7. thermostatic and humidistatic air conditioning unit group according to claim 6, which is characterized in that the bottom of the drip tray is equipped with draining Mouthful, drainpipe is installed at the discharge outlet.

8. thermostatic and humidistatic air conditioning unit group according to claim 7, which is characterized in that the drainpipe is round tube or square Shape pipe, shape and size are adapted with the shape and size of the discharge outlet.