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Constant temperature and humidity air conditioning unit and control method

An air-conditioning unit, constant temperature and humidity technology, applied in air-conditioning systems, heating and ventilation control systems, heating methods, etc., can solve the problems of low energy utilization and achieve the effect of improving energy utilization

Active Publication Date: 2016-01-27
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low energy utilization rate of the existing constant temperature and humidity air conditioner units, the present invention provides a constant temperature and humidity air conditioner unit and a control method, which recovers the energy of the air conditioner refrigerant for heating the air, without specially setting up electric heating tubes, energy High utilization rate, ensuring constant temperature and humidity conditions while achieving the purpose of energy saving

Method used

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  • Constant temperature and humidity air conditioning unit and control method

Examples

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Embodiment 1

[0023] Embodiment one, see figure 1 As shown, a constant temperature and humidity air conditioning unit includes a compressor 1, a condenser 2, a throttling device, and a main heat exchanger. Connected four-way valve 4, auxiliary heat exchanger 5, and humidifier 11, the auxiliary heat exchanger 5 is arranged between the main heat exchanger 10 and the outlet of the air supply channel, and the humidifier 11 is arranged between the heat exchanger fan 12 and the main Between the heat exchangers 10, the throttling device mentioned above includes a first throttling device 13 and a second throttling device 9, the A end of the four-way valve 4 is connected to the output end of the condenser 2, and the end of the four-way valve 4 The C end is connected to the suction end of the compressor 1, and the B end of the four-way valve 4 is connected to the output end of the auxiliary heat exchanger 5 through the first throttling device 13 on the one hand, and connected to the main heat exchang...

Embodiment 2

[0029] Embodiment 2, based on the constant temperature and humidity air conditioning unit in Embodiment 1, this embodiment provides a control method for constant temperature and humidity air conditioning units. For the device part, please refer to the description of Embodiment 1 and figure 1 , combined with figure 2 Shown flow chart, described control method comprises the following steps:

[0030] (1) Detect the indoor humidity H, and determine the relationship between the indoor humidity HS and the set humidity H1;

[0031] (2) If H≤H1, run the humidification system, that is, control the humidifier to work and perform humidification;

[0032] (3) If H>H1, detect the indoor temperature T, and determine the relationship between the difference ΔT between the indoor temperature T and the set temperature T1 and the accuracy T2:

[0033] If ΔT>T2, run the cooling and dehumidification system, that is: control the four-way valve to cut off the power, the refrigerant expelled by th...

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Abstract

The invention discloses a constant temperature and humidity air conditioning unit and a control method. The constant temperature and humidity air conditioning unit comprises a circulation loop formed by sequentially connecting a compressor, a condenser, throttling devices and a main heat exchanger, and also comprises a four-way valve, an auxiliary heat exchanger and a humidifier, wherein the auxiliary heat exchanger is arranged between the main heat exchanger and an outlet of an air supply channel, the humidifier is arranged between a heat exchanger fan and the main heat exchanger, an end A of the four-way valve is connected with an output end of the condenser, an end C of the four-way valve is connected with a suction end of the compressor, an end B of the four-way valve is connected with an output end of the auxiliary heat exchanger through the first throttling device on one hand, and is connected with an input end of the main heat exchanger through the second throttling device on the other hand, an end D of the four-way valve is connected with an input end of the auxiliary heat exchanger, and a control unit is also connected with a temperature sensor and a humidity sensor. According to the air conditioning unit, energy of air conditioning refrigerants can be recycled to be used for heating air, no electrical heating pipe needs to be specially arranged, the energy utilization ratio is high, and the purpose of energy saving is achieved when a constant temperature and humidity condition is guaranteed.

Description

technical field [0001] The invention relates to a constant temperature and humidity air conditioning unit and a control method, belonging to the technical field of air conditioning and refrigeration. Background technique [0002] Places that have certain requirements on temperature and humidity, such as food, tea and other processing or storage places, have certain requirements on temperature and humidity, but the control accuracy is low, and constant temperature and humidity air-conditioning units are required to control indoor temperature and humidity. The principle of the constant temperature and humidity air conditioner unit is generally to use the indoor heat exchanger for refrigeration or dehumidification. Since the refrigeration will be accompanied by the dehumidification process, when the humidity is too high and the temperature is appropriate, that is, when only dehumidification is required, the temperature will also increase. As it decreases, it is necessary to run...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F3/14F24F13/30F24F11/00
Inventor 冯志扬史文伯刘敏学
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD