CN203010816U - Cold accumulation type circulating cooling air-conditioning unit - Google Patents

Abstract

The utility model relates to a cold storage type circulating cooling air conditioner unit, which comprises two circulation pipelines of a refrigeration unit and a cold storage device, wherein the refrigeration unit is composed of a compressor, a condenser, an expansion valve and an evaporator, and the cold storage device is composed of a cold storage box and a circulation pump Composed of circulation pipelines, the evaporator is connected in parallel to the cold storage tank through a bypass pipe, and part of the cooling capacity is brought to the condenser through heat exchange to cool down the condenser. After absorbing heat from the condenser, it returns to the cold storage device, and the cycle is repeated. The utility model makes full use of the cold released in the evaporator to cool down the condenser, and can stop using the cooling water pump, cooling tower and exhaust fan in the prior art when a certain amount of cold is stored in the cold storage box, which not only reduces the operating cost , and reduce the energy consumption of the air conditioner, while achieving a better cooling effect.

Description

A cool-storage circulating cooling air-conditioning unit

technical field

The utility model relates to an air-conditioning refrigeration unit, in particular to a cold-storage type circulating cooling air-conditioning unit, which belongs to the technical field of heating, ventilating and air-conditioning. the

Background technique

With the improvement of people's living standards, air conditioners are widely used in commercial and domestic fields. The refrigeration unit in the air conditioning system includes an evaporator, a compressor, a condenser and a throttling device, and the refrigerant circulates in it. Among them, the condenser is a heat exchange device used to cool the refrigerant. For large-scale central air-conditioning systems, the cooling system includes cooling water pumps and cooling towers. However, since the cooling capacity of the cooling water is limited by the outdoor ambient temperature and its own characteristics, its cooling capacity is limited. In order to ensure a reliable cooling effect, it is necessary to To increase the flow and velocity of cooling water, not only does it need to be equipped with water pipes with larger diameters, but the power of the cooling water pump and the cooling fan in the cooling tower will also increase accordingly. The water temperature is relatively high, so that the condensation temperature of the refrigeration unit in the air-conditioning system is also relatively high, the cooling effect is not obvious, and the operating energy consumption of the air-conditioning system is greatly increased. For household air conditioners, since the temperature of the gaseous refrigerant is higher than the outdoor temperature after the compressor is pressurized, the temperature of the pressurized gaseous refrigerant is taken away by the outdoor air and the exhaust fan, which indirectly forces the indoor temperature. Arranged outside. However, due to the small specific heat of air and the influence of surrounding environmental factors, the cooling effect is not obvious, and the operation consumes a lot of energy and makes a lot of noise. In short, the currently used air-conditioning and refrigeration units generally have the problems of poor cooling effect, high energy consumption and high cost. the

Utility model content

Aiming at the deficiencies in the prior art, the utility model aims to provide a cold storage circulating cooling air conditioner unit with low energy consumption, low cost and good cooling effect. the

The utility model device is realized in the following way: a cold storage type circulating cooling air conditioner unit, comprising a refrigeration unit 1 and a cold storage device 2, characterized in that the refrigeration unit 1 is composed of a compressor 3, a condenser 4, a throttle valve 5 , evaporator 6, the cold storage device 2 is composed of a cold storage box 7, a circulation pump 8 and a circulation pipeline 9, the evaporator 6 is connected to the cold storage box 7, and the refrigerant 12 in the cold storage box 7 is in the circulation pump 8 Under the action, the cooling capacity is brought to the condenser 4; the cold storage box 7 is a square sealed container made of metal, including a bypass pipe 11 and a brine 12, and the bypass pipe 11 is connected to the The evaporator 6; the brine (12) adopts a high boiling point environment-friendly brine. the

The utility model has the following advantages: the utility model makes full use of the cold released in the evaporator to cool down the condenser, and can stop using the cooling water pump, cooling tower and exhaust fan in the prior art when a certain amount of cold is stored in the cold storage box , which not only reduces the operating cost in the process of cooling the condenser, but also reduces the energy consumption of the air conditioner. At the same time, because the cooling performance of the brine is better than that of air and water, a better cooling effect can be achieved. Therefore, the utility model is a cold storage type circulating cooling air conditioner unit with low energy consumption, low cost and good cooling effect. the

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a structural schematic diagram of a cold-storage circulating cooling air-conditioning unit of the present invention.

In the figure: 1—refrigeration unit, 2—cold storage device, 3—compressor, 4—condenser, 5—throttle valve, 6—evaporator, 7—cool storage box, 8—circulation pump, 9—circulation pipeline, 10—valve, 11—bypass pipe, 12—coolant, 13—refrigerant. the

Detailed ways

As shown in Figure 1, a cold storage type circulating cooling air conditioner unit includes a refrigeration unit 1 and a cold storage device 2. It is characterized in that the refrigeration unit 1 is composed of a compressor 3, a condenser 4, an expansion valve 5, and an evaporator 6 Composition, the cold storage device 2 is composed of a cold storage box 7, a circulation pump 8 and a circulation pipeline 9, the brine 12 in the cold storage box 7 brings the cooling capacity to the condenser 4 under the action of the circulation pump 8, and the condenser 4 Cool down. the

When the air conditioner is turned on, the refrigeration unit 1 is running, the valve 10 is opened, and part of the refrigerant 13 enters the cold storage tank 7 through the valve 10. The cold storage tank 7 is connected in parallel with the evaporator 6 through the bypass pipe 11, and the refrigerant is controlled by the valve 10. The flow rate of 13, the interior of the cold storage box 7 has a bypass pipe 11, a brine 12, and a part of the evaporator 6, and the evaporator 6 makes the low-temperature and low-pressure refrigerant 13 liquid absorb the heat of the brine 12 during the boiling process, thereby achieving The purpose of storing cold energy in the cold storage box 7 . When the load is large, there is insufficient power supply. At this time, the cooling water pump, cooling tower and exhaust fan can be turned off, the circulation pump 8 can be turned on, the cold storage device 2 starts to run, and the brine 12 brings the cold in the cold storage box 7 to the condenser. 4, thereby absorbing the heat released by the refrigerant 13 in the condenser 4 during the condensation process, and then transporting the heat to the cold storage tank 7 through the circulation pipeline 9, and absorbing the heat by the boiling process of the refrigerant 13, and so on. the

The utility model makes full use of the cold released in the evaporator to cool down the condenser, and can stop using the cooling water pump, cooling tower and exhaust fan in the prior art when a certain amount of cold is stored in the cold storage box, which not only reduces cooling condensation The operating cost of the air conditioner process is reduced, and the energy consumption of the air conditioner is reduced. At the same time, because the refrigeration performance of the brine is better than that of air and water, a better cooling effect can be achieved. Therefore, the utility model is a cold storage type circulating cooling air conditioner unit with low energy consumption, low cost and good cooling effect. the

Claims (3)

1. cold storage circulating cooling air-conditioning unit, comprise refrigeration unit (1) and cold-storage device (2), it is characterized in that, described refrigeration unit (1) is comprised of compressor (3), condenser (4), expansion valve (5), evaporimeter (6), described cold-storage device (2) is comprised of cold-accumulating box (7), circulating pump (8) and circulation line (9), evaporimeter (6) is connected in cold-accumulating box (7), and the refrigerating medium (12) in cold-accumulating box (7) brings to cold condenser (4) under the effect of circulating pump (8).

2. a kind of cold storage circulating cooling air-conditioning unit according to claim 1, it is characterized in that, described cold-accumulating box (7) is the quad seal container that is made of metal, comprise the part of bypass pipe (11), refrigerating medium (12) and evaporimeter (6), described bypass pipe (11) is connected in evaporimeter (6) by valve (10).

3. a kind of cold storage circulating cooling air-conditioning unit according to claim 2, is characterized in that, described refrigerating medium (12) adopts higher boiling environment-friendly type refrigerating medium.