Novel intelligent control device for refrigerant purification economizer

Abstract

The utility model discloses a novel refrigerant purification energy saver intelligent control device, which comprises refrigeration equipment, a purification energy saver body and a PLC control device, the purification energy saver body comprises an outer shell, a liquid storage tank, an oil separator, a dry filter, a first evaporator, a first condenser, a heat exchange box and a capillary tube, a PLC control device is fixedly connected to one side of the outer wall of the outer shell, the liquid storage tank, the oil separator, the drying filter and the heat exchange box are all fixedly installed in the outer shell, and the first evaporator and the first condenser are both fixedly installed in the heat exchange box. The oil separator, the first condenser, the liquid storage tank, the drying filter, the capillary tube, the first evaporator, the electromagnetic valves and a compressor of the refrigeration equipment are connected in series to form a closed circulation system. The utility model aims to provide the intelligent control device for the refrigerant purification economizer, which can improve the energy-saving effect of refrigeration equipment, improve the working condition of the equipment and improve the refrigeration efficiency of the equipment, and has intelligentization and self-adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a novel intelligent control device for a refrigerant purification and energy saving device. Background Art

[0002] Refrigeration equipment plays a vital role in contemporary industrial and household applications. Refrigeration systems are widely used in air conditioning, refrigeration, freezing, and temperature control in other special industrial processes. However, with the rise in energy prices and the increase in environmental awareness, how to improve the energy efficiency of refrigeration systems and reduce environmental pollution has become a hot topic in current research.

[0003] During the circulation of traditional refrigeration systems, the performance of refrigerants will deteriorate due to long-term operation. For example, if water, oil and other impurities are mixed into the refrigerant, these impure substances will reduce the efficiency of the system and may even damage the refrigeration equipment. In addition, traditional refrigeration systems often use fixed working modes during operation and lack intelligent adjustment, which limits the performance of the system under different working conditions and cannot automatically adjust to cope with environmental changes or changes in system status.

[0004] In recent years, the development of intelligent refrigeration systems has provided new technical means to improve system efficiency and protect the environment. Among them, the introduction of PLC (Programmable Logic Controller) provides higher flexibility and accuracy for the control of refrigeration systems. PLC control devices can monitor and adjust various parameters in the system in real time, such as temperature, pressure and flow, to ensure that the system operates in the best state, which not only improves energy efficiency but also extends the service life of the equipment.

[0005] Since the purification of refrigerants is crucial to maintaining the long-term stable operation of the refrigeration system, it is particularly necessary to develop a new intelligent control device for refrigerant purification and energy saving. The device should be able to purify the refrigerant in time when the refrigerant performance decreases, restore the refrigerant performance, and be able to intelligently control the entire purification process to improve the energy efficiency and economy of the system.

[0006] In view of the above background, the utility model provides a new intelligent control device for refrigerant purification and energy saving, which monitors and controls the switch of the solenoid valve by introducing a PLC control device, and monitors the data of the air pressure sensor, liquid level sensor, and temperature sensor in real time. Combined with the oil separator, drying filter, evaporator, condenser and other components, the device can effectively purify the refrigerant, improve energy efficiency, reduce energy consumption, and has a fault warning function, which enhances the intelligence and adaptability of the system. Through these improvements, the utility model not only improves the operating performance of the refrigeration system, but also contributes to environmental protection and sustainable use of energy. Utility Model Content

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide an intelligent control device for a refrigerant purification energy saver which can improve the energy-saving effect of refrigeration equipment, improve the working conditions of the equipment, and improve the refrigeration efficiency of the equipment, and has intelligence and adaptability.

[0008] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a new type of refrigerant purification and energy saving intelligent control device, including refrigeration equipment, a purification and energy saving device body and a PLC control device, the purification and energy saving device body includes an outer shell, a liquid storage tank, an oil separator, a drying filter, a first evaporator, a first condenser, a heat exchange box, and a capillary tube. A PLC control device is fixedly connected to one side of the outer wall of the outer shell. The PLC control device is a type of existing PLC controller. In the utility model, it is mainly used for switch control of equipment such as solenoid valves, and monitoring of detection data of air pressure sensors, liquid level sensors, and temperature sensors. An oil drain valve is provided at the lower end of the oil separator, and the oil drain valve is connected to the oil tank of the compressor through an oil pipe. The liquid storage tank, oil separator, drying filter and heat exchange box are all fixedly installed in the outer shell, and the first evaporator and the first condenser are both fixedly installed in the heat exchange box. The oil separator, the first condenser, the liquid storage tank, the drying filter, the capillary tube, the first evaporator and the compressor of the refrigeration equipment are connected in series to form a closed circulation system. A number of solenoid valves are installed in the formed closed circulation system to control the on-off of the pipeline, and the solenoid valves include A1 solenoid valve, A2 solenoid valve, A3 solenoid valve, A4 solenoid valve, A5 solenoid valve and A6 solenoid valve.

[0009] In one embodiment, the existing refrigeration equipment includes a compressor, a second condenser, a throttling device, and a second evaporator which are sequentially connected to form a closed-loop circulation system. An A1 solenoid valve and an A2 solenoid valve are fixedly connected to the closed-loop circulation pipelines on both sides of the compressor, respectively. The A1 solenoid valve is located on one side of the compressor's air intake connecting pipeline, and the A2 solenoid valve is located on one side of the compressor's air exhaust connecting pipeline.

[0010] In one embodiment, a four-way pipe is connected to the pipeline between the air intake of the compressor and the A1 solenoid valve, one end of the four-way pipe is connected to the A3 solenoid valve through a pipeline, the other end of the A3 solenoid valve is connected to the first evaporator through a pipeline, the other end of the first evaporator is connected to the capillary tube through a pipeline, the capillary tube is connected to the drying filter through a pipeline, the other end of the drying filter is connected to the A4 solenoid valve through a pipeline, the other end of the A4 solenoid valve is connected to one side of the lower end of the liquid storage tank through a pipeline, the upper end of the liquid storage tank is fixedly connected to an exhaust pipe, the end of the exhaust pipe is connected to a safety valve, one side of the upper end of the liquid storage tank is connected to the first condenser through a pipeline, the other end of the first condenser is connected to the oil-liquid separator through a pipeline, the other end of the oil-liquid separator is connected to the A5 solenoid valve through a pipeline, and the other end of the A5 solenoid valve is connected to a three-way pipe, which is fixedly connected to the pipeline between the compressor and the A2 solenoid valve.

[0011] In one embodiment, a three-way pipe is installed on the pipeline between the capillary tube and the drying filter, and the three-way pipe is connected to an A6 solenoid valve through a pipeline, and the other end of the A6 solenoid valve is connected to one end of the four-way pipe through a pipeline.

[0012] In one embodiment, an air pressure sensor is fixedly connected to one side of the upper end of the liquid storage tank, and a liquid level sensor and a temperature sensor are installed inside the liquid storage tank.

[0013] In one embodiment, a heat exchange liquid is provided in the heat exchange box, the first evaporator and the first condenser are immersed in the heat exchange liquid, and the A1 solenoid valve, A2 solenoid valve, A3 solenoid valve, A4 solenoid valve, A5 solenoid valve, A6 solenoid valve, air pressure sensor, liquid level sensor, and temperature sensor are electrically connected to the PLC control device through a data line.

[0014] Beneficial effects of the utility model:

[0015] Significant energy-saving effect: The utility model adopts an intelligent control device, which can adjust the working state according to the real-time data of the refrigeration system operation, thereby optimizing energy consumption. By real-time monitoring and purification of the refrigerant, its optimal performance is maintained, thereby reducing energy waste and achieving energy saving and consumption reduction;

[0016] Improve refrigeration efficiency: The intelligent control device of the refrigerant purification economizer can promptly remove moisture, oil and impurities from the refrigerant, restore the performance of the refrigerant, thereby improving the refrigeration efficiency of the entire refrigeration system and ensuring the stable operation of the refrigeration equipment;

[0017] Extend equipment life: Because intelligent controls can maintain the cleanliness and performance of refrigerants, corrosion and wear on refrigeration equipment are reduced, which helps to extend the service life of refrigeration equipment and reduce maintenance and replacement costs;

[0018] Intelligent management: The introduced PLC control device can realize intelligent management of the refrigeration system. Through real-time monitoring and processing of various sensor data, it can automatically adjust the refrigerant purification process, reduce human operation errors, and improve the stability and reliability of the system.

[0019] Environmental benefits: This utility model helps to reduce energy consumption and greenhouse gas emissions by improving the energy efficiency of the refrigeration system and reducing the waste of refrigerants, meets the requirements of environmental protection, and is of great significance for promoting sustainable development;

[0020] Fault warning function: The intelligent control device has fault detection and warning functions, which can promptly remind users when the system is abnormal, avoiding small problems from developing into major faults, and ensuring the continuity and safety of the system;

[0021] Strong adaptability: The intelligent control device can automatically adjust the working mode of the refrigeration system according to different environmental conditions and user needs. It has strong adaptability and flexibility and is suitable for various complex and changeable working environments;

[0022] Through the above beneficial effects, the novel refrigerant purification energy-saving device of the utility model not only improves the economy and efficiency of the refrigeration system, but also brings long-term benefits to users and the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the main body of the utility model purification energy saver;

[0024] Figure 2 This is a schematic diagram of the connection structure of the outer shell of the utility model from the left front view;

[0025] Figure 3 This is a schematic diagram of the connection structure of the outer shell of the utility model from the right rear view;

[0026] Figure 4 It is a schematic diagram of the overall connection structure of the utility model.

[0027] In the figure: 1 PLC control device, 2 outer shell, 3 liquid storage tank, 4 oil separator, 5 drying filter, 6 first evaporator, 7 first condenser, 8 heat exchange box, 9 capillary tube, 10A1 solenoid valve, 11A2 solenoid valve, 12A3 solenoid valve, 13A4 solenoid valve, 14A5 solenoid valve, 15A6 solenoid valve, 16 compressor, 17 second condenser, 18 throttling device, 19 second evaporator, 21 safety valve, 22 air pressure sensor, 23 liquid level sensor, 24 temperature sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 A novel intelligent control device for refrigerant purification and energy saving device comprises a refrigeration device, a purification and energy saving device body and a PLC control device 1. The purification and energy saving device body comprises an outer shell 2, a liquid storage tank 3, an oil separator 4, a drying filter 5, a first evaporator 6, a first condenser 7, a heat exchange box 8, and a capillary tube 9. A PLC control device 1 is fixedly connected to one side of the outer wall of the outer shell 2. The PLC control device 1 is a type of existing PLC controller. In the utility model, it is mainly used for switching control of a solenoid valve and monitoring of detection data of an air pressure sensor 22, a liquid level sensor 23, and a temperature sensor 24. An oil drain valve is arranged at the lower end of the oil separator 4. The oil drain valve The oil valve is connected to the oil tank of the compressor 16 through an oil pipe. The liquid storage tank 3, the oil separator 4, the drying filter 5, and the heat exchange box 8 are all fixedly installed in the outer shell 2. The first evaporator 6 and the first condenser 7 are all fixedly installed in the heat exchange box 8. The oil separator 4, the first condenser 7, the liquid storage tank 3, the drying filter 5, the capillary tube 9, the first evaporator 6 and the compressor 16 of the refrigeration equipment are connected in series to form a closed circulation system. A number of solenoid valves are installed in the formed closed circulation system to control the on-off of the pipeline. The solenoid valves include A1 solenoid valve 10, A2 solenoid valve 11, A3 solenoid valve 12, A4 solenoid valve 13, A5 solenoid valve 14, and A6 solenoid valve 15.

[0030] In one embodiment, the existing refrigeration equipment includes a compressor 16, a second condenser 17, a throttling device 18, and a second evaporator 19 which are sequentially connected to form a closed-loop circulation system. An A1 solenoid valve 10 and an A2 solenoid valve 11 are fixedly connected to the closed-loop circulation pipelines on both sides of the compressor 16. The A1 solenoid valve 10 is located on one side of the air intake connecting pipeline of the compressor 16, and the A2 solenoid valve 11 is located on one side of the air exhaust connecting pipeline of the compressor 16.

[0031] In one embodiment, a four-way pipe is connected to the pipeline between the air intake port of the compressor 16 and the A1 solenoid valve 10, one end of the four-way pipe is connected to the A3 solenoid valve 12 through a pipeline, the other end of the A3 solenoid valve 12 is connected to the first evaporator 6 through a pipeline, the other end of the first evaporator 6 is connected to the capillary tube 9 through a pipeline, the capillary tube 9 is connected to the drying filter 5 through a pipeline, the other end of the drying filter 5 is connected to the A4 solenoid valve 13 through a pipeline, and the other end of the A4 solenoid valve 13 is connected to the lower end of the liquid storage tank 3 through a pipeline. One side is connected, an exhaust pipe is fixedly connected to the upper end of the liquid storage tank 3, and a safety valve 21 is connected to the end of the exhaust pipe. When the pressure in the liquid storage tank 3 reaches a certain value, the safety valve 21 is activated, and one side of the upper end of the liquid storage tank 3 is connected to the first condenser 7 through a pipeline, and the other end of the first condenser 7 is connected to the oil-liquid separator through a pipeline, and the other end of the oil-liquid separator is connected to the A5 solenoid valve 14 through a pipeline, and the other end of the A5 solenoid valve 14 is connected to a three-way pipe, which is fixedly connected to the pipeline between the compressor 16 and the A2 solenoid valve 11.

[0032] In one embodiment, a three-way pipe is installed on the pipeline between the capillary tube 9 and the drying filter 5, and the three-way pipe is connected to an A6 solenoid valve 15 through a pipeline, and the other end of the A6 solenoid valve 15 is connected to one end of the four-way pipe through a pipeline.

[0033] In one of the embodiments, an air pressure sensor 22 is fixedly connected to one side of the upper end of the liquid storage tank 3. The air pressure sensor 22 is used to detect the air pressure in the liquid storage tank 3. A liquid level sensor 23 and a temperature sensor 24 are installed inside the liquid storage tank 3. The liquid level sensor 23 is used to detect the liquid level of the liquid refrigerant in the liquid storage tank 3. The temperature sensor 24 is used to detect the temperature of the refrigerant in the liquid storage tank 3. In the utility model, an alarm device is also provided. When the monitored air pressure, liquid level, and temperature deviate from the set threshold value, the alarm device issues an alarm.

[0034] In one of the embodiments, a heat exchange liquid is provided in the heat exchange box 8, the first evaporator 6 and the first condenser 7 are immersed in the heat exchange liquid, and the A1 solenoid valve 10, A2 solenoid valve 11, A3 solenoid valve 12, A4 solenoid valve 13, A5 solenoid valve 14, A6 solenoid valve 15, air pressure sensor 22, liquid level sensor 23, and temperature sensor 24 are all electrically connected to the PLC control device 1 through a data line.

[0035] The working principle of the utility model is:

[0036] When the refrigeration equipment is in normal working state, the A1 solenoid valve 10 and the A2 solenoid valve 11 are in the open state, and the other solenoid valves are in the closed state. At this time, the refrigerant forms a cycle in the closed-circuit circulation system of the refrigeration equipment under the operation of the compressor 16, thereby achieving a refrigeration effect;

[0037] When the refrigerant needs to be purified, the A1 solenoid valve 10 and the A5 solenoid valve 14 are opened, and the other solenoid valves are closed. The refrigerant passes through the compressor 16 from the second evaporator 19 of the refrigeration equipment along the A5 solenoid valve 14, the oil separator 4, and the condenser to the liquid storage tank 3. The air pressure sensor 22 is used to detect whether the extraction of the refrigerant is completed (the air pressure sensor 22 is used to detect the pressure in the liquid storage tank 3. At a certain temperature, when the air pressure value detected by the air pressure sensor 22 reaches the set value, the extraction of the refrigerant is stopped). After the extraction is completed, the A1 solenoid valve 10 is closed;

[0038] During the refrigerant purification process, the A3 solenoid valve 12, the A4 solenoid valve 13, and the A5 solenoid valve 14 are opened, and the other solenoid valves are closed. At this time, the refrigerant in the liquid storage tank 3 is first purified by the drying filter 5 to filter out the moisture and impurities in the refrigerant, and then enters the evaporator through the capillary tube 9 for gasification, and then enters the oil separator 4 after being compressed by the compressor 16, and the refrigerant is separated from the oil by the oil separator 4, and then the refrigerant is liquefied by the condenser and returned to the liquid storage tank 3. The refrigerant completes the purification operation in the above-mentioned cycle process, and the cycle purification time is set in advance by the PLC control device 1;

[0039] After the refrigerant purification is completed, the A2 solenoid valve 11, the A4 solenoid valve 13, and the A6 solenoid valve 15 are opened, and the other solenoid valves are closed. At this time, the refrigerant in the liquid storage tank 3 re-enters the refrigeration equipment through the A4 solenoid valve 13, the drying filter 5, the A6 solenoid valve 15, the compressor 16, and the A2 solenoid valve 11. When the refrigerant is re-injected into the refrigeration equipment, the A1 solenoid valve 10 and the A2 solenoid valve 11 are opened, and the other remaining solenoid valves are closed, so that the refrigerant re-circulates in the closed-loop circulation system formed by the refrigeration equipment.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel intelligent control device for refrigerant purification and economizer, comprising a refrigeration device, a purification and economizer body and a PLC control device (1), characterized in that: The purification energy saver body comprises an outer shell (2), a liquid storage tank (3), an oil separator (4), a drying filter (5), a first evaporator (6), a first condenser (7), a heat exchange box (8), and a capillary tube (9); a PLC control device (1) is fixedly connected to one side of the outer wall of the outer shell (2); the liquid storage tank (3), the oil separator (4), the drying filter (5), and the heat exchange box (8) are all fixedly installed in the outer shell (2); the first evaporator (6) and the first condenser (7) are both fixedly installed in the heat exchange box (8); In the heat box (8), the oil separator (4), the first condenser (7), the liquid storage tank (3), the drying filter (5), the capillary tube (9), the first evaporator (6) and the compressor (16) of the refrigeration equipment are connected in series to form a closed circulation system. A plurality of solenoid valves are installed in the formed closed circulation system to control the on-off of the pipeline. The solenoid valves include an A1 solenoid valve (10), an A2 solenoid valve (11), an A3 solenoid valve (12), an A4 solenoid valve (13), an A5 solenoid valve (14) and an A6 solenoid valve (15).

2. According to claim 1, a new type of refrigerant purification and energy saving intelligent control device is characterized by: The existing refrigeration equipment comprises a compressor (16), a second condenser (17), a throttling device (18), and a second evaporator (19) which are sequentially connected to form a closed-loop circulation system. An A1 solenoid valve (10) and an A2 solenoid valve (11) are fixedly connected to the closed-loop circulation pipelines on both sides of the compressor (16), respectively. The A1 solenoid valve (10) is located on one side of the air intake connection pipeline of the compressor (16), and the A2 solenoid valve (11) is located on one side of the air exhaust connection pipeline of the compressor (16).

3. According to claim 1, a novel intelligent control device for refrigerant purification and energy saving is characterized in that: A four-way pipe is connected to the pipeline between the air intake port of the compressor (16) and the A1 solenoid valve (10), one end of the four-way pipe is connected to the A3 solenoid valve (12) through a pipeline, the other end of the A3 solenoid valve (12) is connected to the first evaporator (6) through a pipeline, the other end of the first evaporator (6) is connected to the capillary tube (9) through a pipeline, the capillary tube (9) is connected to the drying filter (5) through a pipeline, the other end of the drying filter (5) is connected to the A4 solenoid valve (13) through a pipeline, and the other end of the A4 solenoid valve (13) is connected to the A4 solenoid valve (13) through a pipeline. The pipeline is connected to one side of the lower end of the liquid storage tank (3); the upper end of the liquid storage tank (3) is fixedly connected to an exhaust pipe, the end of the exhaust pipe is connected to a safety valve (21); the upper end of the liquid storage tank (3) is connected to the first condenser (7) through a pipeline; the other end of the first condenser (7) is connected to an oil-liquid separator through a pipeline; the other end of the oil-liquid separator is connected to an A5 solenoid valve (14) through a pipeline; the other end of the A5 solenoid valve (14) is connected to a three-way pipe, and the three-way pipe is fixedly connected to the pipeline between the compressor (16) and the A2 solenoid valve (11).

4. According to claim 1, a novel intelligent control device for refrigerant purification and energy saving device is characterized in that: A three-way pipe is installed on the pipeline between the capillary tube (9) and the drying filter (5), and the three-way pipe is connected to an A6 solenoid valve (15) through a pipeline. The other end of the A6 solenoid valve (15) is connected to one end of the four-way pipe through a pipeline.

5. According to claim 1, a novel intelligent control device for refrigerant purification and energy saving is characterized in that: A pressure sensor (22) is fixedly connected to one side of the upper end of the liquid storage tank (3), and a liquid level sensor (23) and a temperature sensor (24) are installed inside the liquid storage tank (3).

6. A novel intelligent control device for refrigerant purification and energy saving device according to claim 5, characterized in that: The heat exchange box (8) is provided with a heat exchange liquid, the first evaporator (6) and the first condenser (7) are immersed in the heat exchange liquid, and the A1 solenoid valve (10), the A2 solenoid valve (11), the A3 solenoid valve (12), the A4 solenoid valve (13), the A5 solenoid valve (14), the A6 solenoid valve (15), the air pressure sensor (22), the liquid level sensor (23), and the temperature sensor (24) are all electrically connected to the PLC control device (1) via a data line.

Images