CN205536282U - Evaporation formula and air -cooled heat pump air conditioning system who combines together - Google Patents

Abstract

A evaporation formula and air -cooled heat pump air conditioning system who combines together, its structure includes the compressor, four -way reversing valve, the forced air cooling condenser, evaporative condenser, throttling arrangement, a drying filter, first check valve, the second check valve, the third check valve, the fourth check valve, the 5th check valve, the 6th check valve, an evaporator, vapour and liquid separator soft breeze machine subassembly, an unit has the condensing system of two kinds of differences, be air -cooled condensing system and evaporation formula condensing system respectively, the efficient condensing system of preferential adoption, the efficiency of complete machine advances greatly, reduce the consumption, and an energy -saving effect is realized, as one of them plant condensing system cooling arrangement ( like fan or water pump) break down, can be transformed into another condensing system at any time, the normal operating of guarantee unit, the reliability of operation and the stability of improvement unit are compared with prior art, the utility model discloses a summer is when refrigerating, air side fin type heat exchanger and evaporative condenser combined action, sharing fan subassembly.

Description

A heat pump air conditioning system combining evaporative and air cooling

technical field

The utility model belongs to the technical field of air-conditioning equipment, and in particular relates to a heat pump air-conditioning system combining evaporative and air-cooled systems.

Background technique

In the prior art, most air-cooled heat pump units use a single finned heat exchanger on the air side, the exhaust temperature and pressure of which are relatively high, and the air-cooled heat pump units fluctuate greatly due to the influence of ambient temperature.

During cooling in summer, due to the high ambient temperature and high condensing pressure, the energy efficiency ratio decreases. The efficiency is low and the energy consumption is large, so a high-efficiency evaporative condensation system can be used.

Therefore, it is urgent to provide a heat pump air-conditioning system combining evaporative and air cooling.

Contents of the invention

The utility model overcomes the shortcomings of the prior art, and provides a heat pump air-conditioning system combining evaporative and air-cooled systems. In the summer cooling conditions, a high-energy-efficiency evaporative-cooled condensing system is used to ensure efficient operation of the cooling mode; A relatively stable air-cooled condensing system is used in winter heating conditions to ensure stable operation of the heating mode; in dry conditions (water cut-off) cooling operation, an air-cooled condensing system is used to improve the safety of the refrigeration system. In order to solve the above technical problems,

The utility model is achieved through the following technical solutions:

A composite evaporative cooling heat pump unit, including a compressor, a four-way reversing valve, a first heat exchanger, a second heat exchanger, a throttling device, a dry filter, a first one-way valve, and a second one-way valve, third one-way valve, fourth one-way valve, fifth one-way valve, sixth one-way valve, evaporator, gas-liquid separator and fan assembly;

Between the first inlet and outlet of the evaporator and the inlet of the second heat exchanger, a fourth one-way valve, a dry filter, a throttling device and a sixth one-way valve are arranged in sequence, and the outlet of the second heat exchanger is connected to the outlet of the evaporator. A third one-way valve, a dry filter, a throttling device and a fifth one-way valve are sequentially arranged between the first inlet and outlet;

Both the first heat exchanger and the second heat exchanger are arranged on the heat source side of the heat pump unit, the fan assembly is arranged on the same side of the first heat exchanger and the second heat exchanger, and the first heat exchanger and the second heat exchanger The common fan assembly of the device;

During the refrigeration cycle, the refrigerant flows out from the exhaust port of the compressor, and flows through the first heat exchanger, the first one-way valve, the second heat exchanger, and the third one-way through the C port of the four-way reversing valve in sequence. Valve, dry filter, throttling device, fifth one-way valve, evaporator, E port of the four-way reversing valve, and then flow out through the S port of the four-way reversing valve after reversing the four-way reversing valve. Return to the compressor after passing through the gas-liquid separator;

During the heating cycle, the refrigerant flows out from the exhaust port of the compressor, and through the E port of the four-way reversing valve, it flows through the evaporator, the fourth one-way valve, the dry filter, the throttling device, and the sixth one-way valve in sequence. valve, the second heat exchanger, the second one-way valve, the first heat exchanger, the C port of the four-way reversing valve, and then flow through the S port of the four-way reversing valve after reversing the four-way reversing valve. After flowing through the gas-liquid separator, it returns to the compressor.

Further, the first heat exchanger is one of an air-cooled condenser and an evaporative condenser, and the second heat exchanger is the other of the two.

Further, there are two air-cooled condensers, and the two air-cooled condensers are distributed on the left and right sides of the evaporative condenser, and a static pressure zone is formed between the evaporative condenser and the air-cooled condensers on both sides. .

Further, at least one fan assembly is provided, and the fan assembly includes a fan and a motor.

Further, one side of the evaporative condenser is provided with a water pump, a condensate pan assembly and a spraying device.

Further, the first one-way valve, the second one-way valve, the third one-way valve, the fourth one-way valve, the fifth one-way valve and the sixth one-way valve are all set as mechanical valves, electromagnetic valves or electric valves. Any one or a combination of several.

Further, the filter drier is a tubular filter drier.

Compared with the prior art, the beneficial effects of the utility model are:

An evaporative and air-cooled heat pump air-conditioning system according to the utility model has a structure including a compressor, a four-way reversing valve, an air-cooled condenser, an evaporative condenser, a throttling device, and a dry filter. , first one-way valve, second one-way valve, third one-way valve, fourth one-way valve, fifth one-way valve, sixth one-way valve, evaporator, gas-liquid separator and fan assembly, one set The unit has two different condensing systems, namely the air-cooled condensing system and the evaporative condensing system. The condensing system with high efficiency is preferred, which greatly advances the efficiency of the whole machine, reduces power consumption, and achieves energy-saving effects. For example, one of the condensing systems If the cooling equipment (such as fan or water pump) of the system fails, it can be switched to another condensing system at any time to ensure the normal operation of the unit and improve the reliability and stability of the unit’s operation. Compared with the prior art, the summer cooling system of the present invention When the air-cooled condenser and the evaporative condenser work together, and share the fan assembly, the exhaust temperature and exhaust pressure are lower than when the air-cooled condenser is used alone, thus greatly reducing the cooling capacity. Energy consumption, improved refrigeration energy efficiency.

Description of drawings

Accompanying drawing is used for providing further understanding to the utility model, is used for explaining the utility model together with the embodiment of the utility model, does not constitute the limitation of the utility model, in the accompanying drawing:

Fig. 1 is a structural schematic diagram of a heat pump air-conditioning system combining evaporative and air cooling according to the utility model.

Figure 1 includes:

10—compressor, 11—exhaust port, 12—return air port,

20——Four-way reversing valve,

31——air-cooled condenser, 32——evaporative condenser, 33——evaporator,

40—throttling device,

50 - filter drier,

61—the first one-way valve, 62—the second one-way valve, 63—the third one-way valve, 64—the fourth one-way valve, 65—the fifth one-way valve, 66—the sixth check valve,

70—gas-liquid separator, 71—inlet end, 72—outlet end.

detailed description

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Example 1

As shown in Figure 1, a compound evaporative cooling heat pump unit described in the present invention includes a compressor 10, a four-way reversing valve 20, an air-cooled condenser 31, an evaporative condenser 32, and a throttling device 40 , dry filter 50, first one-way valve 61, first one-way valve 62, third one-way valve 63, fourth one-way valve 64, fifth one-way valve 65, sixth one-way valve 66, evaporator 33. A gas-liquid separator 70 and a fan assembly, wherein the drier filter 50 is a tubular filter drier.

Between the first inlet and outlet of the evaporator 33 and the inlet of the evaporative condenser 32, a fourth one-way valve, a dry filter 50, a throttling device 40, and a sixth one-way valve are successively arranged, and the outlet of the evaporative condenser 32 and the A third one-way valve 63 , a dry filter 50 , a throttling device 40 , and a fifth one-way valve 65 are sequentially provided between the first inlet and outlet of the evaporator 33 .

During the refrigeration cycle, as shown in Figure 1, the refrigerant flows out from the exhaust port 11 of the compressor 10, and flows through the air-cooled condenser 31, the first one-way valve 61, Evaporative condenser 32, third one-way valve 63, dry filter 50, throttling device 40, fifth one-way valve 65, evaporator 33, E port of four-way reversing valve 20, and then through four-way reversing The valve 20 is reversed and then flows out through the S port of the four-way reversing valve 20, flows through the gas-liquid separator 70, and then returns to the compressor 10;

During the heating cycle, as shown in Figure 1, the refrigerant flows out from the exhaust port 11 of the compressor 10, and flows through the evaporator 33, the fourth one-way valve 64, the drying Filter 50, throttling device 40, sixth one-way valve 66, evaporative condenser 32, second one-way valve 62, air-cooled condenser 31, C port of four-way reversing valve 20, and then through four-way reversing Reverse the direction of the valve 20 and then flow out through the S port of the four-way reversing valve 20 , flow through the gas-liquid separator 70 and return to the compressor 10 .

There are two air-cooled condensers 31, and the two air-cooled condensers 31 are distributed on the left and right sides of the evaporative condenser 32, and the evaporative condenser 32 is formed between the air-cooled condensers 31 on both sides. static pressure zone.

At least one fan assembly is provided, and the fan assembly includes a fan and a motor.

One side of the evaporative condenser 32 is provided with a water pump, a condensate pan assembly and a spraying device.

The first one-way valve 61 , the first one-way valve 62 , the third one-way valve 63 , the fourth one-way valve 64 , the fifth one-way valve 65 and the sixth one-way valve 66 are all configured as solenoid valves or electric valves.

The specific working principle of this system is:

Summer cooling mode: the exhaust port 11 of the compressor 10 is exhausted to the D port of the four-way reversing valve 20, and then to the air-cooled condenser 31 through the C port (at this time, the condensing fan part of the air-cooled condenser 31 is started separately) , through the first one-way valve 61, into the evaporative condenser 32 (at this time the condensing fan and cooling water pump of the evaporative condenser 32 start), after evaporative cold condensation, through the third one-way valve 63, to the dry filter 50, and then through the electronic expansion valve 40 throttling, then through the fifth one-way valve 65, enter the evaporator 33 for evaporation, return to the E port of the four-way reversing valve 20 after evaporation, and then return to the gas-liquid separation through the S port The inlet port 71 of the device 70 returns to the air return port 12 of the compressor 10 through the outlet port 72 after separation, finally forming a refrigeration cycle.

During refrigeration operation, evaporative condensation is the main method, and air-cooled condensation is the auxiliary method. The air-cooled condensing fan is partially turned on, the evaporative condensing fan is turned on, and the circulating water pump is turned on.

Winter heating mode: from the exhaust port 11 of the compressor 10 to the D port of the four-way reversing valve 20, then through the E port to the evaporator 33, through the fourth one-way valve 64, and then through the dry filter 50 to enter the electronic The expansion valve 40 throttles, and after throttling, it passes through the sixth one-way valve 66 and then passes through the evaporative condenser 32, and then enters the air-cooled condenser 31 through the second one-way valve 62 for evaporation and heat exchange, and returns to the four-way condenser after evaporation. To the D port of the valve 20, and then return to the inlet port 71 of the gas-liquid separator 70 through the S port, and return to the air return port 12 of the compressor 10 through the outlet 72 after separation, finally forming a heating cycle.

During heating operation, the air-cooled condensing fan is turned on, and the evaporative cooling fan and circulating water pump are turned off.

When running in dry condition (without water), the air-cooled condensing fan is turned on, and the evaporative cooling fan and circulating water pump are turned off.

Example 2

The main structure of this embodiment is the same as that of Embodiment 1, and the same parts will not be repeated here. The difference between this embodiment and Embodiment 1 is:

Both the air-cooled condenser 31 and the evaporative condenser 32 are arranged on the heat source side of the heat pump unit, the fan assembly is arranged on the same side of the air-cooled condenser 31 and the evaporative condenser 32, and the air-cooled condenser 31 and the evaporative condenser 32 shared fan assembly.

During heating operation, the circulating water pump is turned on, and during dry operation (without water), the circulating water pump is turned off, and the air-cooled condenser 31 and the evaporative condenser 32 share one or more fans, which are always turned on.

Finally, it should be noted that the above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, for those skilled in the art, it is still It is possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements on some of the technical features, but within the spirit and principles of the present utility model, any modifications, equivalent replacements, improvements, etc. Included within the protection scope of the present utility model.

Claims (7)

1. a compound transpiration-cooled source pump, it is characterised in that:

Including compressor, four-way change-over valve, First Heat Exchanger, the second heat exchanger, throttling arrangement, device for drying and filtering, the first check valve, the second check valve, the 3rd check valve, the 4th check valve, the 5th check valve, the 6th check valve, vaporizer, gas-liquid separator and fan assembly；

It is sequentially provided with described 4th check valve, described device for drying and filtering, described throttling arrangement and described 6th check valve between first gateway and the entrance of described second heat exchanger of described vaporizer, between outlet and first gateway of vaporizer of described second heat exchanger, is sequentially provided with described 3rd check valve, described device for drying and filtering, described throttling arrangement and described 5th check valve；

Described First Heat Exchanger and described second heat exchanger may be contained within the thermal source side of source pump, described fan assembly is arranged at described First Heat Exchanger and the same side of described second heat exchanger, described First Heat Exchanger and described second heat exchanger and shares described fan assembly；

When kind of refrigeration cycle, cold-producing medium is flowed out by the air vent of compressor, First Heat Exchanger, the first check valve, the second heat exchanger, the 3rd check valve, device for drying and filtering, throttling arrangement, the 5th check valve, vaporizer, the E port of four-way change-over valve is flowed through successively via the C port of four-way change-over valve, then flow out via the S port of four-way change-over valve again through four-way change-over valve commutation, flow through reflux compressor after gas-liquid separator；

When heating circulation, cold-producing medium is flowed out by the air vent of compressor, vaporizer, the 4th check valve, device for drying and filtering, throttling arrangement, the 6th check valve, the second heat exchanger, the second check valve, First Heat Exchanger, the C port of four-way change-over valve is flowed through successively via the E port of four-way change-over valve, then flow out via the S port of four-way change-over valve again through four-way change-over valve commutation, flow through reflux compressor after gas-liquid separator.

One the most according to claim 1 compound transpiration-cooled source pump, it is characterised in that: described First Heat Exchanger is the one in both air-cooled condenser and evaporative condenser, and described second heat exchanger is another in the two.

One the most according to claim 2 compound transpiration-cooled source pump, it is characterized in that: described air-cooled condenser is provided with two, and the distribution of said two air-cooled condenser is arranged at the left and right sides that described evaporative condenser is relative, described evaporative condenser respectively and forms static pressure district between the described air-cooled condenser of its both sides.

One the most according to claim 1 compound transpiration-cooled source pump, it is characterised in that: described fan assembly is at least provided with one, and described fan assembly includes blower fan and motor.

One the most according to claim 2 compound transpiration-cooled source pump, it is characterised in that: the side of described evaporative condenser is provided with water pump, condensation water pan component and spray equipment.

One the most according to claim 1 compound transpiration-cooled source pump, it is characterised in that: any one or several combination that described first check valve, the second check valve, the 3rd check valve, the 4th check valve, the 5th check valve and the 6th check valve are disposed as in mechanical valve, electromagnetic valve or electrodynamic valve.

One the most according to claim 1 compound transpiration-cooled source pump, it is characterised in that: described device for drying and filtering is tube type drying filter.