Double-suction double-row compressor and air conditioning system and air conditioner using the same

Abstract

The present invention provides a double-suction double-row compressor and an air conditioning system and air conditioner using the same, which relates to the field of air conditioning technology and solves the problem that temperature and humidity cannot be independently controlled. The compressor includes a rolling rotor type compressor body, the compressor body has a first cylinder and a second cylinder that are independent of each other, and the compressor body has two relatively independent and mutually sealed air intake and exhaust paths, and the first cylinder and the second cylinder belong to one air intake and exhaust path respectively for independent air intake and exhaust. The air conditioning system adopts a double evaporator and a solenoid valve to form a system with the compressor to achieve independent temperature and humidity control. The air conditioner adopts the air conditioning system. Compared with the prior art, the present invention can achieve independent temperature and humidity control, and achieve the purpose of temperature adjustment and dehumidification, condensation and reheating, and no need for electric reheating.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, in particular to a double-suction double-row compressor and an air conditioning system and an air conditioner using the same. Background Art

[0002] At present, many indoor heat exchangers of air conditioners are composed of two rows of heat exchangers. The heat exchange air flow passes through the two rows of heat exchangers successively. After the air passes through the heat exchanger on the air inlet side, the temperature changes, so the air temperature passing through the two rows of heat exchangers is different. When the air passes through the heat exchanger on the air outlet side, the heat exchange temperature difference decreases, and the heat exchanger efficiency cannot be fully utilized.

[0003] The cooling mode is a mode that all air conditioners have, and it is also the most basic function of air conditioners. The cooling process of the air conditioner is inevitably accompanied by dehumidification. After the humid air passes through the air conditioner evaporator, the temperature will drop significantly, and the air humidity will be in a supersaturated state. The excess water vapor will precipitate in the form of condensed water and condense on the fins of the evaporator, which is called "condensation". When the cooling mode reaches a certain equilibrium state, the air humidity will drop to a certain level.

[0004] Air conditioning dehumidification is also a very important function of air conditioning. The principle of air conditioning dehumidification is actually the same as that of refrigeration. It also relies on the entire refrigeration system to operate, using the compressor for refrigeration and the indoor fan to drain the water in the room to the outside. In the refrigeration mode, the traditional refrigeration and air conditioning system has two functions, refrigeration and dehumidification. In order to achieve dehumidification, simply lowering the evaporation temperature will cause problems such as reduced system energy efficiency and reduced human comfort. If the air needs to be heated, electric auxiliary heating is required. Summary of the invention

[0005] The purpose of the present invention is to design a double-suction double-row compressor and an air conditioning system and air conditioner using the same, which can realize independent temperature and humidity control, and achieve the purpose of temperature adjustment and dehumidification, condensation and reheating, and no need for electric reheating.

[0006] The present invention is achieved through the following technical solutions:

[0007] A double-suction double-row compressor includes a rolling rotor type compressor body, the compressor body has a first cylinder and a second cylinder that are independent of each other, the compressor body has two relatively independent and mutually sealed intake and exhaust air paths, the first cylinder and the second cylinder respectively belong to one of the intake and exhaust air paths for independent intake and exhaust.

[0008] When the above-mentioned structure is adopted, the compressor body is a two-cylinder compressor, and the whole compressor body is driven by a motor. The inhaled gas can come from two pipelines of the air-conditioning system, instead of having only one suction port for inhalation like the existing two-cylinder compressor. The first cylinder and the second cylinder can inhale and exhaust gases at different temperatures, and the first cylinder and the second cylinder can inhale and exhaust independently. The gas compressed by the first cylinder is discharged through the sealed upper flange exhaust port, and the gas compressed by the second cylinder is discharged through the sealed lower flange exhaust port. When used in an air-conditioning system with dual condensers and dual evaporators, efficient refrigeration and independent temperature and humidity control in summer can be achieved, as well as dehumidification, dual temperature and humidity control, condensation reheating, and no need for electric reheating in the rainy season can be achieved. It can be switched according to the needs of different refrigeration modes to maximize the efficiency of mechanical refrigeration, and has a very good market prospect.

[0009] In order to further better realize the present invention, the following setting structure is particularly adopted: the compressor body is provided with a first cylinder intake pipe, a second cylinder intake pipe, a first cylinder exhaust pipe and a second cylinder exhaust pipe, the first cylinder intake pipe and the first cylinder exhaust pipe are respectively connected to the intake end and the exhaust end of the first cylinder, and the second cylinder intake pipe and the second cylinder exhaust pipe are respectively connected to the intake end and the exhaust end of the second cylinder.

[0010] In order to further better realize the present invention, the following configuration is particularly adopted: the first cylinder air intake pipe and the second cylinder air intake pipe are connected to the first air intake liquid distributor and the second air intake liquid distributor respectively.

[0011] In order to better realize the present invention, the following configuration is particularly adopted: the exhaust volume of the first cylinder is V1, the exhaust volume of the second cylinder is V2, wherein V1 / V2=0.1-1.0.

[0012] In order to better realize the present invention, the following configuration is particularly adopted: the exhaust volume of the first cylinder is V1, the exhaust volume of the second cylinder is V2, wherein V1 / V2=0.4-1.0.

[0013] When the above-mentioned setting structure is adopted, V1 / V2=0.4~1.0 is the optimal volume ratio of this double-suction double-row compressor solution. In addition, when it is applied to an air-conditioning system equipped with a double condenser, it can be switched according to the needs of different refrigeration modes, thereby maximizing the efficiency of mechanical refrigeration and having a very good market prospect.

[0014] In order to better realize the present invention, the following setting structure is particularly adopted: the exhaust volume of the first cylinder is V1, the exhaust volume of the second cylinder is V2, wherein V1 / V2=0.4~1.0, the volume of the first air suction liquid distributor is V3, the volume of the second air suction liquid distributor is V4, wherein V3 / V4=0.5~1.0.

[0015] When the above-mentioned setting structure is adopted, the first air suction liquid distributor and the second air suction liquid distributor corresponding to the first cylinder and the second cylinder have different volumes of the liquid distributors according to the different volumes of the cylinder bodies. This scheme sets the liquid distributor volume ratio range between 0.5-1.0 according to the above-mentioned cylinder volume ratio.

[0016] The present invention also provides an air-conditioning system, comprising a second condenser, a flash evaporator, a second throttle valve, a high-temperature evaporator, a low-temperature evaporator, a first solenoid valve, a second solenoid valve, a fourth solenoid valve, a seventh solenoid valve and the above-mentioned double-suction double-row compressor; the first cylinder exhaust pipe of the compressor body is connected to the exhaust port of the second condenser, the exhaust port of the second condenser is connected to the exhaust port of the flash evaporator, the second exhaust port of the flash evaporator is connected to the exhaust port of the second throttle valve, the exhaust port of the second throttle valve is split and respectively connected to the exhaust port of the high-temperature evaporator and the exhaust port of the seventh solenoid valve, the exhaust port of the high-temperature evaporator is connected to the exhaust port of the second suction The suction port of the gas separator, the discharge port of the seventh solenoid valve is connected to the discharge port of the low-temperature evaporator, the discharge port of the low-temperature evaporator is connected to the discharge port of the second solenoid valve, the discharge port of the second solenoid valve is connected to the suction port of the first air suction separator, the pipeline connecting the low-temperature evaporator to the second solenoid valve is connected to the discharge port of the fourth solenoid valve, the discharge port of the fourth solenoid valve is connected to the second cylinder exhaust pipe, the pipeline connecting the high-temperature evaporator to the second air suction separator is connected to the discharge port of the first solenoid valve, and the pipeline connecting the second solenoid valve to the first air suction separator is connected to the discharge port of the first solenoid valve.

[0017] When the above-mentioned setting structure is adopted, the problem that the traditional refrigeration and air conditioning system has two functions of refrigeration and dehumidification in the refrigeration mode, and the evaporation temperature is simply lowered to achieve dehumidification, resulting in reduced system energy efficiency and reduced human comfort can be solved. The temperature and humidity can be controlled independently, achieving the purpose of temperature adjustment dehumidification, condensation reheating, and no need for electric reheating.

[0018] To further implement the present invention better, the following configuration is particularly adopted: it also includes a first condenser, a fifth solenoid valve, a first throttle valve, a sixth solenoid valve and a third solenoid valve;

[0019] The second cylinder exhaust pipe of the second cylinder is branched and respectively connected to the exhaust port of the third solenoid valve and the exhaust port of the fourth solenoid valve, the exhaust port of the third solenoid valve is connected to the exhaust port of the first condenser, the exhaust port of the first condenser is connected to the exhaust port of the fifth solenoid valve, the exhaust port of the fifth solenoid valve is connected to the exhaust port of the flash evaporator, the first exhaust port of the flash evaporator is connected to the exhaust port of the first throttle valve, the exhaust port of the first throttle valve is connected to the exhaust port of the sixth solenoid valve, the exhaust port of the sixth solenoid valve merges with the exhaust port of the seventh solenoid valve and is connected to the exhaust port of the low-temperature evaporator.

[0020] When the above-mentioned setting structure is adopted, this solution solves the problem that in the refrigeration mode of the traditional refrigeration and air-conditioning system, the refrigeration and dehumidification functions are performed simultaneously. In order to achieve dehumidification, the evaporation temperature is simply lowered, resulting in reduced system energy efficiency and reduced human comfort. In combination with the dual evaporator and dual condenser of the cooling and heating air-conditioning system, the low-temperature evaporator is used for dehumidification, and the high-temperature evaporator is used for processing sensible heat, and the load is processed in stages to improve the circulation efficiency. The air-conditioning system of this solution can not only achieve efficient refrigeration and independent temperature and humidity control in summer, but also realize dehumidification in the rainy season, dual temperature and humidity control, temperature-adjustable dehumidification, condensation reheating, and no need for electric reheating.

[0021] In order to better realize the present invention, the following setting structure is particularly adopted: it also includes a four-way valve, the exhaust pipe of the first cylinder of the compressor body is connected to the C port of the four-way valve, the B port of the four-way valve is connected to the discharge port of the second condenser, the A port of the four-way valve is connected to the suction port of the second air suction distributor, and the D port of the four-way valve is connected to the discharge port of the high-temperature evaporator.

[0022] The present invention also provides an air conditioner, which adopts the above air conditioning system.

[0023] The present invention has the following advantages and beneficial effects:

[0024] In the present invention, the compressor body is a twin-cylinder compressor, and the whole compressor body is driven by a motor. The inhaled gas can come from two pipelines of the air-conditioning system, and it is not like the existing twin-cylinder compressor that has only one suction port for inhalation. The first cylinder and the second cylinder can inhale gas of different temperatures, and the first cylinder and the second cylinder can inhale and exhaust independently. The gas compressed by the first cylinder is discharged through the sealed upper flange exhaust port, and the gas compressed by the second cylinder is discharged through the sealed lower flange exhaust port. The application in the air-conditioning system with twin condensers and twin evaporators solves the problem that the traditional refrigeration air-conditioning system has two functions of refrigeration and dehumidification in the refrigeration mode, and in order to achieve dehumidification, the evaporation temperature is simply lowered, resulting in reduced system energy efficiency and reduced human comfort. In combination with the twin evaporators and twin condensers of the cooling and heating air-conditioning system, the low-temperature evaporator is used for dehumidification, and the high-temperature evaporator is used for processing sensible heat, and the load is processed in stages to improve the circulation efficiency. The air-conditioning system of this scheme can not only realize efficient cooling and independent temperature and humidity control in summer, but also realize dehumidification in the rainy season, dual control of temperature and humidity, temperature-controlled dehumidification, condensation reheating, and no need for electric reheating. It can be switched according to the needs of different cooling modes, maximizing the efficiency of mechanical refrigeration, and has very good market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the structure of a double-suction double-row compressor;

[0027] Figure 2 is a schematic structural diagram of the air conditioning system in Example 2;

[0028] Figure 3 is a schematic structural diagram of the air conditioning system in Example 3;

[0029] The markings in the figure are:

[0030] 1- compressor body; 1a- first cylinder; 1b- second cylinder; 1c- first cylinder intake pipe; 1d- second cylinder intake pipe; 1e- first cylinder exhaust pipe; 1f- second cylinder exhaust pipe;

[0031] 2-first air suction liquid distributor; 3-second air suction liquid distributor;

[0032] 4- Four-way valve;

[0033] 5a-first condenser; 5b-second condenser;

[0034] 6-Flash evaporator;

[0035] 7-first throttle valve; 8-second throttle valve;

[0036] 9a-high temperature evaporator; 9b-low temperature evaporator;

[0037] 11-first solenoid valve; 12-second solenoid valve; 13-third solenoid valve; 14-fourth solenoid valve; 15-fifth solenoid valve; 16-sixth solenoid valve; 17-seventh solenoid valve. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] A double suction double row compressor can realize independent temperature and humidity control, achieving the purpose of temperature control dehumidification, condensation reheating, and no need for electric reheating, such as Figure 1 , Figure 2 , Figure 3 As shown, it is particularly configured as follows:

[0041] The invention comprises a rolling rotor type compressor body 1, which is improved on the basis of the existing two-cylinder rolling rotor type compressor. The compressor body 1 has a first cylinder 1a and a second cylinder 1b, and the first cylinder 1a and the second cylinder 1b are independent of each other, that is, the compressor body 1 has two relatively independent and mutually sealed intake and exhaust air paths so as to be able to perform independent intake and exhaust, and the first cylinder 1a and the second cylinder 1b belong to one intake and exhaust air path respectively and are used for independent intake and exhaust.

[0042] Specifically, the compressor body 1 is provided with a first cylinder intake pipe 1c, a second cylinder intake pipe 1d, a first cylinder exhaust pipe 1e, and a second cylinder exhaust pipe 1f. The first cylinder intake pipe 1c and the first cylinder exhaust pipe 1e are respectively plugged and fixed to the intake end and the exhaust end of the first cylinder 1a and are connected to each other. The second cylinder intake pipe 1d and the second cylinder exhaust pipe 1f are respectively plugged and fixed to the intake end and the exhaust end of the second cylinder 1b and are connected. Moreover, the first cylinder intake pipe 1c and the second cylinder intake pipe 1d can also be respectively connected to the distributor bend of the first air intake distributor 2 and the distributor bend of the second air intake distributor 3 to realize the installation with the first air intake distributor 2 and the second air intake distributor 3.

[0043] The compressor body 1 is a two-cylinder compressor. The entire compressor body 1 is driven by a motor. The inhaled gas can come from two pipelines of the air-conditioning system. Unlike the existing two-cylinder compressors, which have only one suction port for inhalation, the first cylinder 1a and the second cylinder 1b can inhale gases of different temperatures. The first cylinder 1a and the second cylinder 1b can inhale and exhaust independently. The gas compressed by the first cylinder 1a is discharged through the sealed upper flange exhaust port, and the gas compressed by the second cylinder 1b is discharged through the sealed lower flange exhaust port. When used in an air-conditioning system with dual condensers and dual evaporators, efficient refrigeration and independent temperature and humidity control in summer can be achieved. Dehumidification, dual temperature and humidity control, condensation reheating, and no need for electric reheating can also be achieved in the rainy season. It can be switched according to the needs of different refrigeration modes to maximize the efficiency of mechanical refrigeration, and has a very good market prospect.

[0044] Among them, assuming that the exhaust volume of the first cylinder 1a is V1, and the exhaust volume of the second cylinder 1b is V2, then V1 / V2=0.4~1.0. The volume is limited within this range to further ensure the optimal efficiency that can be achieved when the compressor and the air-conditioning system operate to achieve the above functions. If the structure and process conditions of the development and design allow, when a micro compressor can be realized, the volume ratio of the first cylinder and the second cylinder can be expanded to V1 / V2=0.1~1.0. V1 / V2=0.4~1.0 is the optimal volume ratio of this double-suction double-row compressor solution (the range ratio is based on the design of the exhaust volume (i.e. the design of the exhaust port size), and the simulation calculation can make the heating performance of the compressor reach the optimal level). In addition, when it is applied to an air-conditioning system equipped with a double condenser, it can be switched according to the needs of different refrigeration modes to maximize the efficiency of mechanical refrigeration, and has a very good market prospect.

[0045] The first air suction liquid distributor 2 and the second air suction liquid distributor 3 corresponding to the first cylinder 1a and the second cylinder 1b have different volumes according to the different volumes of the cylinder bodies. When the exhaust volume of the first cylinder 1a is V1, the exhaust volume of the second cylinder 1b is V2, wherein V1 / V2=0.4~1.0, the volume of the first air suction liquid distributor 2 is V3, and the volume of the second air suction liquid distributor 3 is V4, wherein V3 / V4=0.5~1.0.

[0046] Embodiment 2:

[0047] This embodiment provides an air conditioning system based on the above embodiment, and particularly adopts the following configuration structure:

[0048] The air conditioning system includes a second condenser 5b, a flash evaporator 6, a second throttle valve 8, a high-temperature evaporator 9a, a low-temperature evaporator 9b, a first solenoid valve 11, a second solenoid valve 12, a fourth solenoid valve 14, a seventh solenoid valve 17 and the double-suction double-row compressor in Example 1.

[0049] In the air-conditioning system, the first cylinder exhaust pipe 1e of the compressor body 1 is connected to the exhaust port of the second condenser 5b, the exhaust port of the second condenser 5b is connected to the exhaust port of the flash evaporator 6, the second exhaust port of the flash evaporator 6 is connected to the exhaust port of the second throttle valve 8, the exhaust port of the second throttle valve 8 is split and respectively connected to the exhaust port of the high-temperature evaporator 9a and the exhaust port of the seventh solenoid valve 17, the exhaust port of the high-temperature evaporator 9a is connected to the suction port of the second suction liquid distributor 3, the exhaust port of the seventh solenoid valve 17 is connected to the exhaust port of the low-temperature evaporator 9b, and the low-temperature The discharge port of the evaporator 9b is connected to the discharge port of the second solenoid valve 12, the discharge port of the second solenoid valve 12 is connected to the suction port of the first air suction distributor 2, the pipeline of the low-temperature evaporator 9b connecting the second solenoid valve 12 is connected to the discharge port of the fourth solenoid valve 11, the discharge port of the fourth solenoid valve 14 is connected to the second cylinder exhaust pipe 1f, the pipeline of the high-temperature evaporator 9a connecting the second air suction distributor 3 is connected to the discharge port of the first solenoid valve 11, and the pipeline of the second solenoid valve 12 connecting the first air suction distributor 2 is connected to the discharge port of the first solenoid valve 11. Under this configuration, i.e., connection structure, the air conditioning system can solve the problem that in the refrigeration mode of the traditional refrigeration air conditioning system, it has to bear both refrigeration and dehumidification functions at the same time. In order to achieve dehumidification, the evaporation temperature is simply lowered, resulting in reduced system energy efficiency and reduced human comfort. It can realize independent control of temperature and humidity, and achieve the purpose of temperature adjustment dehumidification, condensation reheating, and no need for electric reheating.

[0050] Embodiment 3:

[0051] This embodiment is further optimized on the basis of the second embodiment, and provides an air conditioner system, which particularly adopts the following configuration structure:

[0052] The air conditioning system further includes a first condenser 5 a , a fifth solenoid valve 15 , a first throttle valve 7 , a sixth solenoid valve 16 and a third solenoid valve 13 .

[0053] In the air conditioning system, the second cylinder exhaust pipe 1f of the second cylinder 1b is split and connected to the exhaust port of the third solenoid valve 13 and the exhaust port of the fourth solenoid valve 14 respectively, the exhaust port of the third solenoid valve 13 is connected to the exhaust port of the first condenser 5a, the exhaust port of the first condenser 5a is connected to the exhaust port of the fifth solenoid valve 15, the exhaust port of the fifth solenoid valve 15 is connected to the exhaust port of the flash evaporator 6, the first exhaust port of the flash evaporator 6 is connected to the exhaust port of the first throttle valve 7, the exhaust port of the first throttle valve 7 is connected to the exhaust port of the sixth solenoid valve 16, the exhaust port of the sixth solenoid valve 16 and the exhaust port of the seventh solenoid valve 17 are merged and connected to the exhaust port of the low-temperature evaporator 9b. Under this configuration, i.e., the connection structure, the air conditioning system solves the problem that in the refrigeration mode of the traditional refrigeration air conditioning system, it simultaneously undertakes the two functions of refrigeration and dehumidification. In order to achieve dehumidification, the evaporation temperature is simply reduced, resulting in reduced system energy efficiency and reduced human comfort. Combined with the dual evaporators and dual condensers of the cooling and heating air conditioning system, the low-temperature evaporator 9b is used for dehumidification, and the high-temperature evaporator 9a is used for processing sensible heat, and the load is processed in stages to improve the circulation efficiency. The air conditioning system of this solution can not only achieve high-efficiency refrigeration and independent temperature and humidity control in summer, but also achieve dehumidification in the rainy season, dual temperature and humidity control, temperature-adjusting dehumidification, condensation reheating, and no need for electric reheating.

[0054] Among them, the four-way valve 4 can be introduced to realize the change of the pipeline to obtain the cooling and heating functions. The first cylinder exhaust pipe 1e of the compressor body 1 is connected to the C port of the four-way valve 4, the B port of the four-way valve 4 is connected to the discharge port of the second condenser 5b, the A port of the four-way valve 4 is connected to the suction port of the second suction liquid distributor 3, and the D port of the four-way valve 4 is connected to the discharge port of the high-temperature evaporator 9a.

[0055] The working principle of the air conditioning system in Example 3 is described below: First, the air conditioning system with a double-suction double-row compressor is described. This scheme has a double-suction double-row double cylinder (not double-stage, but large and small cylinders, and its volume ratio is designed to be V1 / V2=0.1~1.0). Among them, the first air suction distributor 2 is connected to the first cylinder 1a, and the second air suction distributor 3 is connected to the second cylinder 1b. Similarly, the compressor body 1 has a first cylinder exhaust pipe 1e and a second cylinder exhaust pipe 1f. In addition, each of its passages is provided with a solenoid valve. In addition, the evaporator has a double heat exchanger (that is, a double evaporator with a high-temperature evaporator 9a and a low-temperature evaporator 9b, and the definition of high and low temperatures is based on the temperature definition of the exhaust port). By changing the closing state of each solenoid valve, the gas flow path of the double-suction double-row compressor in the pipeline of the air-conditioning system can be changed, so that the air-conditioning system can be covered or gases with different evaporation temperatures are inhaled and compressed independently in the double cylinders to improve the refrigeration capacity, or pass through the double evaporator, the low-temperature evaporator 9b is used for dehumidification, and the high-temperature evaporator 9a is used to process sensible heat, and the load is processed in stages to improve the circulation efficiency. Similarly, according to the closed state of the solenoid valve, the working state of the dual condenser can also be adjusted according to actual needs to achieve a dual condenser (the first condenser 5a and the second condenser 5b work simultaneously) or a single condenser (the second condenser 5b works alone) mode (i.e., suitable for low-load refrigeration demand or high-efficiency refrigeration mode), further improving the condensing capacity and the energy efficiency of the air-conditioning system. This solution not only saves cost space, but also achieves the effect of separating the sensible heat and latent heat of the system while increasing the refrigeration capacity.

[0056] The air conditioning system is mainly designed for three environments: high-efficiency cooling in summer, low-load cooling, and dehumidification in the rainy season. The following is a detailed description of the working modes used in these three environments combined with the working status of each component:

[0057] 1. When it is hot in summer, high-efficiency summer cooling - double suction and double exhaust mode is suitable: Figure 3As shown, the first solenoid valve 11 and the fourth solenoid valve 14 are closed, and the second solenoid valve 12 and the third solenoid valve 13 are opened. At this time, the gas discharged from the exhaust pipe 1e of the first cylinder of the compressor body 1 enters the second condenser 5b through the four-way valve 4, and the gas discharged from the exhaust pipe 1f of the second cylinder of the compressor body 1 enters the first condenser 5a. At the same time, the fifth solenoid valve 15 and the sixth solenoid valve 16 are opened, the seventh solenoid valve 17 is closed, and the first throttle valve 7 and the second throttle valve 8 are opened. The gases of the two flow paths (with different condensation temperatures) pass through the flash evaporator 6 through its second and first outlets respectively, and enter the high-temperature evaporator 9a through the second throttle valve 8, and enter the low-temperature evaporator 9b through the first throttle valve 7. Correspondingly, the high-temperature evaporator 9a processes the sensible heat to lead the gas to the second cylinder 1b, and the low-temperature evaporator 9b dehumidifies and leads the gas to the first cylinder 1a. The large and small double cylinders work by independent suction, so that the air-conditioning system using double evaporators can be cooled step by step, and the temperature and humidity can be independently controlled, which can significantly improve the refrigeration capacity of the air-conditioning system and improve the refrigeration effect for the hot environment in summer.

[0058] 2. When the summer heat is low and low-load operation is required, the summer low-load refrigeration - double-suction single-row mode is adopted: Figure 2 , 3 As shown, the first solenoid valve 11, the third solenoid valve 13 and the fourth solenoid valve 14 are closed, and the second solenoid valve 12 is opened. At this time, the gas discharged from the first cylinder exhaust pipe 1e of the compressor body 1 enters the second condenser 5b through the four-way valve 4, and the second cylinder exhaust pipe 1f of the compressor body 1 is no longer exhausted. Only the first cylinder exhaust pipe 1e completes the compression exhaust. At the same time, the fifth solenoid valve 15, the sixth solenoid valve 16 and the first throttle valve 7 are closed, and the seventh solenoid valve 17 and the second throttle valve 8 are opened. Only one flow path gas passes through the flash evaporator 6 and the second throttle valve 8 to enter the high-temperature evaporator 9a and the low-temperature evaporator 9b. Correspondingly, the high-temperature evaporator 9a processes the sensible heat to lead the gas to the second cylinder 1b, and the low-temperature evaporator 9b dehumidifies and leads the gas to the first cylinder 1a. The large and small cylinders work independently, so that the air conditioning system cools down step by step, and the temperature and humidity are independently controlled, which significantly improves the refrigeration capacity of the air conditioning system, and is energy-saving and environmentally friendly for the environment with low heat in summer.

[0059] 3. When it is humid during the rainy season, the rainy season dehumidification-double suction and double discharge mode is adopted: open the first solenoid valve 11 and the fourth solenoid valve 14, close the second solenoid valve 12 and the third solenoid valve 13, at this time, the gas discharged from the compressor body 1 is divided into two flow paths, one is the gas discharged from the first cylinder exhaust pipe 1e of the compressor body 1 enters the second heat exchanger 5b of the condenser through the four-way valve 4, and at the same time close the fifth solenoid valve 15 and the sixth solenoid valve 16 and the first throttle valve 7, open the seventh solenoid valve 17 and the second throttle valve 8, only one flow path gas passes through the flash evaporator 6 and the second throttle valve 8 to enter the high-temperature evaporator 9a, and the other One gas is discharged directly from the second cylinder exhaust pipe 1f and reheated through the low-temperature evaporator 9b. After that, the two gases are mixed in front of the high-temperature evaporator 9a and condensed and dehumidified through the high-temperature evaporator 9a. Then, they pass through the four-way valve 4 again and enter the first cylinder 1a and the second cylinder 1b corresponding to the two liquid distributors. Since the first solenoid valve 11 is opened, at this time, the first cylinder 1a and the second cylinder 1b inhale gas with the same evaporation temperature, so that the air-conditioning system can achieve dual temperature and humidity control, temperature adjustment and dehumidification, condensation and reheating, and no electric heating is required, which significantly improves the heating capacity of the air-conditioning system and improves the treatment effect for the rainy season environment.

[0060] Therefore, the solution of this embodiment solves the problem that in the refrigeration mode of the traditional refrigeration and air-conditioning system, the refrigeration and dehumidification functions are assumed at the same time. In order to achieve dehumidification, the evaporation temperature is simply lowered, resulting in reduced system energy efficiency and reduced human comfort. The dual evaporation temperature evaporator of the air-conditioning system is combined, the low-temperature evaporator is used for dehumidification, and the high-temperature evaporator is used to process sensible heat, and the load is processed in stages to improve the circulation efficiency. The air-conditioning system of this embodiment can not only realize summer refrigeration, dual evaporators, step cooling, and independent control of temperature and humidity, but also realize dehumidification in the rainy season, dual control of temperature and humidity, temperature-adjusting dehumidification, condensation reheating, and no need for electric reheating. Moreover, the design of the air-conditioning system with dual evaporators and dual condensers enables independent control of temperature and humidity control, and realizes different ways of control of the air-conditioning system for different seasons and environments, which can not only save energy, save costs and reduce space, but also significantly improve the heating performance of the air-conditioning. It has a good market prospect and product promotion.

[0061] Embodiment 4:

[0062] This embodiment provides an air conditioner based on the above embodiment, and particularly adopts the following configuration structure:

[0063] The air conditioner adopts the air conditioning system in Example 3.

[0064] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air conditioning system, characterized in that: The invention comprises a double-suction double-row compressor, the double-suction double-row compressor comprising a rolling rotor type compressor body (1), the compressor body (1) having a first cylinder (1a) and a second cylinder (1b) which are independent of each other, the compressor body (1) having two relatively independent and mutually sealed intake and exhaust gas paths, the first cylinder (1a) and the second cylinder (1b) respectively belonging to one of the intake and exhaust gas paths for independent intake and exhaust; The compressor body (1) is provided with a first cylinder intake pipe (1c), a second cylinder intake pipe (1d), a first cylinder exhaust pipe (1e) and a second cylinder exhaust pipe (1f); the first cylinder intake pipe (1c) and the first cylinder exhaust pipe (1e) are respectively connected to the intake end and the exhaust end of the first cylinder (1a); the second cylinder intake pipe (1d) and the second cylinder exhaust pipe (1f) are respectively connected to the intake end and the exhaust end of the second cylinder (1b); The first cylinder air intake pipe (1c) and the second cylinder air intake pipe (1d) are connected to the first air intake liquid distributor (2) and the second air intake liquid distributor (3) respectively; The air conditioning system further comprises a second condenser (5b), a flash evaporator (6), a second throttle valve (8), a high-temperature evaporator (9a), a low-temperature evaporator (9b), a first solenoid valve (11), a second solenoid valve (12), a fourth solenoid valve (14), and a seventh solenoid valve (17); the first cylinder exhaust pipe (1e) of the compressor body (1) is connected to the exhaust port of the second condenser (5b), the exhaust port of the second condenser (5b) is connected to the exhaust port of the flash evaporator (6), the second exhaust port of the flash evaporator (6) is connected to the exhaust port of the second throttle valve (8), the exhaust port of the second throttle valve (8) is split and respectively connected to the exhaust port of the high-temperature evaporator (9a) and the exhaust port of the seventh solenoid valve (17), and the exhaust port of the high-temperature evaporator (9a) is connected to the second air suction liquid distributor (3). The seventh solenoid valve (17) is connected to the inlet of the low-temperature evaporator (9b), the outlet of the low-temperature evaporator (9b) is connected to the outlet of the second solenoid valve (12), the outlet of the second solenoid valve (12) is connected to the inlet of the first air suction liquid distributor (2), the pipeline connecting the low-temperature evaporator (9b) to the second solenoid valve (12) is connected to the outlet of the fourth solenoid valve (14), the outlet of the fourth solenoid valve (14) is connected to the second cylinder exhaust pipe (1f), the pipeline connecting the high-temperature evaporator (9a) to the second air suction liquid distributor (3) is connected to the outlet of the first solenoid valve (11), and the pipeline connecting the second solenoid valve (12) to the first air suction liquid distributor (2) is connected to the outlet of the first solenoid valve (11); The air conditioning system further comprises a first condenser (5a), a fifth solenoid valve (15), a first throttle valve (7), a sixth solenoid valve (16) and a third solenoid valve (13); The second cylinder exhaust pipe (1f) of the second cylinder (1b) is split and respectively connected to the exhaust port of the third solenoid valve (13) and the exhaust port of the fourth solenoid valve (14); the exhaust port of the third solenoid valve (13) is connected to the exhaust port of the first condenser (5a); the exhaust port of the first condenser (5a) is connected to the exhaust port of the fifth solenoid valve (15); the exhaust port of the fifth solenoid valve (15) is connected to the exhaust port of the flash evaporator (6); the first exhaust port of the flash evaporator (6) is connected to the exhaust port of the first throttle valve (7); the exhaust port of the first throttle valve (7) is connected to the exhaust port of the sixth solenoid valve (16); the exhaust port of the sixth solenoid valve (16) merges with the exhaust port of the seventh solenoid valve (17) and is connected to the exhaust port of the low-temperature evaporator (9b); The air conditioning system further comprises a four-way valve (4), the first cylinder exhaust pipe (1e) of the compressor body (1) is connected to the C port of the four-way valve (4), the B port of the four-way valve (4) is connected to the exhaust port of the second condenser (5b), the A port of the four-way valve (4) is connected to the suction port of the second air suction distributor (3), and the D port of the four-way valve (4) is connected to the exhaust port of the high-temperature evaporator (9a).

2. The air conditioning system according to claim 1, characterized in that: The exhaust volume of the first cylinder (1a) is V1, and the exhaust volume of the second cylinder (1b) is V2, wherein V1 / V2=0.1-1.

0.

3. The air conditioning system according to claim 2, characterized in that: The exhaust volume of the first cylinder (1a) is V1, and the exhaust volume of the second cylinder (1b) is V2, wherein V1 / V2=0.4-1.

0.

4. The air conditioning system according to claim 1, characterized in that: The exhaust volume of the first cylinder (1a) is V1, the exhaust volume of the second cylinder (1b) is V2, wherein V1 / V2=0.4-1.0, the volume of the first air suction liquid distributor (2) is V3, the volume of the second air suction liquid distributor (3) is V4, wherein V3 / V4=0.5-1.

0.

5. An air conditioner, characterized in that: An air conditioning system according to any one of claims 1 to 4 is adopted.

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