Energy adjusting system

By adding a bypass pipe and solenoid valve to the refrigeration system, combined with a temperature sensor and an expansion valve, the problem of the fixed-frequency compressor being unable to adjust its operating parameters was solved, and the safe operation of the variable-frequency compressor and improved system efficiency were achieved.

CN223435300UActive Publication Date: 2025-10-14JIANGSU KELI AIR CONDITIONING CO LTD
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Patent Information

Application Number
CN202422722831.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-10-14
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

Traditional fixed-frequency compressors cannot adjust operating parameters, and variable-frequency compressors are not conducive to oil return when operating at low frequencies, increasing the risk of damage.

Method used

By adding a bypass pipe and solenoid valve to the refrigeration system, combined with a temperature sensor and expansion valve, the refrigerant flow rate can be monitored and adjusted to achieve energy regulation and protection.

Benefits of technology

Effectively adjust the operating parameters of the refrigeration system, reduce the risk of compressor damage, and improve system efficiency and energy utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of energy regulation, and discloses an energy regulation system which comprises an indoor unit and an outdoor unit, an evaporator is arranged on the side of the indoor unit, and a gas-liquid separator, a compressor, an oil separator, a condenser, a dry filter and a liquid storage device are arranged on the side of the outdoor unit. Normal operation of the refrigerating system is ensured; a bypass pipe is additionally arranged on the basis of a traditional refrigerating system, the bypass pipe is installed between an oil separator and a drying filter, an electromagnetic valve is installed on the bypass pipe, and the refrigerant flow on the bypass pipe can be adjusted; the first temperature sensor, the second temperature sensor and the third temperature sensor are arranged on the connecting mechanism, operation data are monitored, related parts are adjusted according to the monitored data, and the system is adjusted and protected.
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Description

Technical Field

[0001] The utility model relates to the technical field of energy regulation systems, in particular to an energy regulation system. Background Art

[0002] With the vigorous promotion of low-carbon environmental protection, energy conservation and emission reduction, all walks of life have been continuously innovating in energy conservation. In the refrigeration system, energy regulation technology is a very important energy-saving means, which can make the refrigeration system in the optimal operating state, improve the efficiency of the system and reduce operating energy consumption.

[0003] During the use of traditional equipment, fixed-frequency compressors cannot adjust operating parameters and cannot perform energy regulation. Variable-frequency compressors can adjust energy by adjusting the compressor exhaust volume. However, when the actual demand value is relatively small, the compressor will be in a low-frequency operation state for a long time, which is not conducive to compressor oil return and increases the risk of compressor damage. Utility Model Content

[0004] The purpose of the utility model is to provide an energy regulation system, which solves the problem that in the use of traditional equipment, fixed-frequency compressors cannot adjust operating parameters and cannot perform energy regulation, while variable-frequency compressors can perform energy regulation by adjusting the compressor exhaust volume. However, when the actual demand value is relatively small, the compressor will be in a low-frequency operation state for a long time, which is not conducive to compressor oil return and increases the risk of compressor damage.

[0005] An embodiment of the present application provides an energy regulation system, including an indoor unit side and an outdoor unit side, wherein the indoor unit side is provided with an evaporator, and the outdoor unit side is provided with a gas-liquid separator, a compressor, an oil separator, a condenser, a drying filter and a liquid reservoir, and a connecting mechanism is provided between the evaporator and the gas-liquid separator, the compressor, the oil separator, the condenser, the drying filter and the liquid reservoir; the connecting mechanism includes a condenser, the condenser is connected to one side of the drying filter, the side of the condenser away from the drying filter is connected to the condenser, the side of the condenser away from the condenser is provided with a second exhaust pipe, the side of the second exhaust pipe away from the condenser is connected to the oil separator, a bypass pipe is installed between the condenser and the second exhaust pipe, a first temperature sensor, a second temperature sensor, a third temperature sensor, an expansion valve and a solenoid valve are provided on the connecting mechanism pipe, and the solenoid valve is installed on the pipeline of the bypass pipe.

[0006] By adopting the above technical solution, the normal operation of the refrigeration system is ensured through four major components: evaporator, compressor, condenser and expansion valve; a bypass pipe is added on the basis of the traditional refrigeration system, the bypass pipe is connected to the condenser and the second exhaust pipe, and a solenoid valve is installed on the bypass pipe to adjust the refrigerant flow on the bypass pipe; a first temperature sensor, a second temperature sensor and a third temperature sensor are provided on the connecting mechanism to monitor the operating data, and the relevant components are adjusted according to the monitoring data, which plays a role in regulating and protecting the system.

[0007] Optionally, a liquid supply pipe is installed on one side of the evaporator, and the side of the liquid supply pipe away from the evaporator is connected to the liquid reservoir. A second liquid supply pipe is installed on the port of the liquid reservoir away from the liquid supply pipe, and the side of the liquid supply pipe away from the liquid reservoir is connected to the drying filter.

[0008] By adopting the above technical solution, the evaporator and the liquid reservoir can be connected via the liquid supply pipe, and the second liquid supply pipe can connect the liquid reservoir and the drying filter.

[0009] Optionally, the second temperature sensor is installed on the liquid supply pipe, and the second temperature sensor is located on the outdoor unit side.

[0010] By adopting the above technical solution, the liquid supply pipe can be monitored by the second temperature sensor.

[0011] Optionally, an expansion valve is installed inside the liquid supply pipe, and the expansion valve is located on one side of the low-temperature temperature sensor.

[0012] By adopting the above technical solution, the liquid flow in the liquid supply pipe can be regulated by the expansion valve.

[0013] Optionally, a first exhaust pipe is installed on a side of the oil separator away from the second exhaust pipe, and a side of the first exhaust pipe away from the oil separator is connected to a side end of the compressor.

[0014] By adopting the above technical solution, the oil separator and the compressor can be connected through the first exhaust pipe.

[0015] Optionally, an intake pipe is installed at the upper end of the compressor, and the intake pipe is installed with the gas-liquid separator on the side away from the compressor, and the intake pipe extends to the interior of the gas-liquid separator, and the port of the gas-liquid separator on the side away from the intake pipe is connected to the return pipe, and the return pipe is connected to the evaporator on the side away from the gas-liquid separator.

[0016] By adopting the above technical solution, the compressor and the gas-liquid separator can be connected through the suction pipe, and the evaporator and the gas-liquid separator can be connected through the return pipe.

[0017] Optionally, the third temperature sensor is installed on the pipe of the condensing pipe, the first temperature sensor is installed on the pipe of the return air pipe, and the first temperature sensor is located on the indoor unit side.

[0018] By adopting the above technical solution, the third temperature sensor can detect the temperature of the dry cooling pipe, and the first temperature sensor can monitor the temperature of the return air pipe.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] The technical solution of this application ensures the normal operation of the refrigeration system through four major components: evaporator, compressor, condenser and expansion valve; a bypass pipe is added on the basis of the traditional refrigeration system, the bypass pipe is connected to the condenser and the second exhaust pipe, and an electromagnetic valve is installed on the bypass pipe to adjust the refrigerant flow in the bypass pipe; a first temperature sensor, a second temperature sensor and a third temperature sensor are provided on the connecting mechanism to monitor the operating data, and adjust the relevant components according to the monitoring data, which plays a role in regulating and protecting the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a front view schematic diagram of an energy regulation system of the present utility model.

[0023] In the figure: 1. Indoor unit side; 2. Evaporator; 3. Gas-liquid separator; 4. Compressor; 5. Oil separator; 6. Condenser; 7. Dry filter; 8. Liquid reservoir; 9. Liquid supply pipe; 11. Second liquid supply pipe; 12. Condenser pipe; 13. Bypass pipe; 14. Second exhaust pipe; 15. First exhaust pipe; 16. Intake pipe; 17. Return pipe; 18. First temperature sensor; 19. Expansion valve; 20. Second temperature sensor; 21. Third temperature sensor; 22. Solenoid valve; 23. Outdoor unit side. DETAILED DESCRIPTION

[0024] See also Figure 1The utility model provides a technical solution: an energy regulation system, including an indoor unit side 1 and an outdoor unit side 23, the indoor unit side 1 is provided with an evaporator 2, the outdoor unit side 23 is provided with a gas-liquid separator 3, a compressor 4, an oil separator 5, a condenser 6, a drying filter 7, a liquid reservoir 8, a connecting mechanism is provided between the evaporator 2 and the gas-liquid separator 3, the compressor 4, the oil separator 5, the condenser 6, the drying filter 7 and the liquid reservoir 8; the connecting mechanism includes a condenser pipe 12, the condenser pipe 12 is connected to one side of the drying filter 7, the side of the condenser pipe 12 away from the drying filter 7 is connected to the condenser 6, the side of the condenser 6 away from the condenser pipe 12 is provided with a second exhaust pipe 14, the side of the second exhaust pipe 14 away from the condenser 6 is connected to the oil separator 5, a bypass pipe 13 is installed between the condenser pipe 12 and the second exhaust pipe 14, a first temperature sensor 18, a second temperature sensor 20, a third temperature sensor 21, an expansion valve 19 and a solenoid valve 22 are provided inside the connecting mechanism, and the solenoid valve 22 is installed on the pipeline of the bypass pipe 13;

[0025] A liquid supply pipe 9 is installed on one side of the evaporator 2, and the side of the liquid supply pipe 9 away from the evaporator 2 is connected to the liquid reservoir 8, and a second liquid supply pipe 11 is installed on the port of the liquid reservoir 8 away from the liquid supply pipe 9, and the side of the second liquid supply pipe 11 away from the liquid reservoir 8 is connected to the drying filter 7, and a first exhaust pipe 15 is installed on the side of the oil separator 5 away from the second exhaust pipe 14, and the side of the first exhaust pipe 15 away from the oil separator 5 is connected to the side end of the compressor 4, and an intake pipe 16 is installed on the upper end of the compressor 4, and the side of the intake pipe 16 away from the compressor 4 is installed with the gas-liquid separator 3, and the intake pipe 16 extends to the interior of the gas-liquid separator 3, and a return air pipe 17 is installed on the inner wall of the port of the gas-liquid separator 3 away from the intake pipe 16, and the return air pipe 17 is installed with the evaporator 2 on the side away from the gas-liquid separator 3.

[0026] In the technical solution of the present utility model, the normal operation of the refrigeration system is ensured by four major components: an evaporator 2, a compressor 4, a condenser 6 and an expansion valve 19; a bypass pipe 13 is added on the basis of the traditional refrigeration system, and the bypass pipe 13 is installed with the condenser pipe 12 and the second exhaust pipe 14. A solenoid valve 22 is installed on the bypass pipe 13 to adjust the refrigerant flow in the bypass pipe 13; a first temperature sensor 18, a second temperature sensor 20 and a third temperature sensor 21 are provided on the connecting mechanism to monitor the operating data and adjust the relevant components according to the monitoring data, thereby playing a role in regulating and protecting the system.

[0027] In addition, the liquid supply pipe 9 can connect the evaporator 2 and the liquid reservoir 8, the second liquid supply pipe 11 can connect the liquid reservoir 8 and the drying filter 7, the first exhaust pipe 15 can connect the oil separator 5 and the compressor 4, the intake pipe 16 can connect the compressor 4 and the gas-liquid separator 3, and the return pipe 17 can connect the evaporator 2 and the gas-liquid separator 3.

[0028] In the technical solution of the present utility model, Figure 1 As shown, the second temperature sensor 20 is installed on the pipeline of the liquid supply pipe 9, and the second temperature sensor 20 is located on the outdoor unit side 23. The second temperature sensor 20 can monitor the liquid supply pipe 9. An expansion valve 19 is installed inside the liquid supply pipe 9. The expansion valve 19 is located on one side of the low-temperature temperature sensor. The liquid supply pipe 9 can be regulated by the expansion valve 19. The third temperature sensor 21 is installed on the pipeline of the condenser pipe 12, and the first temperature sensor 18 is installed on the return air pipe 17. The first temperature sensor 18 is located on the indoor unit side 1. The condenser pipe 12 can be temperature monitored by the third temperature sensor 21, and the first temperature sensor 18 can be temperature monitored for the return air pipe 17.

[0029] When in use, the evaporator 2, the gas-liquid separator 3, the compressor 4, the oil separator 5, the condenser 6, the drying filter 7 and the liquid reservoir 8 can be connected first through the liquid supply pipe 9, the second liquid supply pipe 11, the condenser 12, the bypass pipe 13, the second exhaust pipe 14, the first exhaust pipe 15, the suction pipe 16 and the return pipe 17, and the evaporator 2, the compressor 4, the condenser 6 and the expansion valve 19 ensure the normal operation of the refrigeration system; on the basis of the traditional refrigeration system, a bypass pipe 13 is added, the bypass pipe 13 is installed with the condenser 12 and the second exhaust pipe 14, and the bypass pipe 13 is equipped with a solenoid valve 22, which can adjust the refrigerant flow in the bypass pipe 13; the first temperature sensor 18, the second temperature sensor 20 and the third temperature sensor 21 are provided on the connecting mechanism to monitor the operating data and adjust the relevant components according to the monitoring data, so as to play a role in regulating and protecting the system;

[0030] A solenoid valve 22 is installed on the bypass pipe 13. The solenoid valve 22 can be of switch quantity or proportional integral type. The opening of the solenoid valve 22 can be switched or steplessly adjusted according to the actual needs of the project to accurately control the refrigerant flow distribution.

[0031] A first temperature sensor 18 is provided on the steam pipe 17 of the evaporator 2 to adjust the opening of the solenoid valve 22 on the bypass pipe 13 according to the monitoring of the return air temperature to protect the compressor 4;

[0032] A third temperature sensor 21 is provided on the condenser tube 12 of the condenser 6. The opening of the outdoor condensing fan is adjusted according to the monitoring temperature of the third temperature sensor 21 to ensure that the condensing fan operates with the lowest energy consumption.

[0033] A second temperature sensor 20 is provided near the expansion valve 19 to monitor the system operation data in real time to ensure the normal operation of the entire refrigeration system;

[0034] The expansion valve 19 can be an electronic expansion valve or a thermal expansion valve, and flexible selection can ensure the optimal solution for the entire system;

[0035] The compressor 4 can be of fixed frequency or variable frequency type, both of which can realize the energy regulation function.

Claims

1. An energy regulation system, characterized in that: The invention comprises an indoor unit side (1) and an outdoor unit side (23), wherein the indoor unit side (1) is provided with an evaporator (2), and the outdoor unit side (23) is provided with a gas-liquid separator (3), a compressor (4), an oil separator (5), a condenser (6), a drying filter (7) and a liquid reservoir (8), and a connecting mechanism is provided between the evaporator (2) and the gas-liquid separator (3), the compressor (4), the oil separator (5), the condenser (6), the drying filter (7) and the liquid reservoir (8); the connecting mechanism comprises a condensing pipe (12), the condensing pipe (12) is connected to one side of the drying filter (7), and the condensing pipe (12) is connected to the drying filter (7). 2) The side away from the drying filter (7) is connected to the condenser (6), the side of the condenser (6) away from the condensing pipe (12) is connected to the second exhaust pipe (14), the side of the second exhaust pipe (14) away from the condenser (6) is connected to the oil separator (5), a bypass pipe (13) is installed between the condensing pipe (12) and the second exhaust pipe (14), and the first temperature sensor (18), the second temperature sensor (20), the third temperature sensor (21), the expansion valve (19) and the solenoid valve (22) are arranged inside the connecting mechanism, and the solenoid valve (22) is installed on the bypass pipe (13).

2. An energy regulation system according to claim 1, characterized in that: A liquid supply pipe (9) is installed on one side of the evaporator (2); the side of the liquid supply pipe (9) away from the evaporator (2) is connected to the liquid reservoir (8); the port of the liquid reservoir (8) away from the liquid supply pipe (9) is connected to a second liquid supply pipe (11); and the side of the second liquid supply pipe (11) away from the liquid reservoir (8) is connected to a drying filter (7).

3. An energy regulation system according to claim 2, characterized in that: The second temperature sensor (20) is installed inside the liquid supply pipe (9), and the second temperature sensor (20) is located on the outdoor unit side (23).

4. An energy regulation system according to claim 3, characterized in that: An expansion valve (19) is installed on the liquid supply pipe (9), and the expansion valve (19) is located on one side of the low-temperature temperature sensor.

5. An energy regulation system according to claim 1, characterized in that: A first exhaust pipe (15) is installed on a side of the oil separator (5) away from the second exhaust pipe (14), and a side of the first exhaust pipe (15) away from the oil separator (5) is installed on a side end of the compressor (4).

6. An energy regulation system according to claim 5, characterized in that: An air intake pipe (16) is installed at the upper end of the compressor (4), and the air intake pipe (16) is connected to the gas-liquid separator (3) on a side away from the compressor (4), and the air intake pipe (16) extends into the interior of the gas-liquid separator (3). A return air pipe (17) is installed on the pipe on the side of the gas-liquid separator (3) away from the air intake pipe (16), and the return air pipe (17) is installed on the evaporator (2) on a side away from the gas-liquid separator (3).

7. An energy regulation system according to claim 1, characterized in that: The third temperature sensor (21) is installed on the tube of the condensing tube (12), the first temperature sensor (18) is installed inside the return air tube (17), and the first temperature sensor (18) is located on the indoor unit side (1).