Energy-saving refrigeration equipment

Abstract

The invention relates to the field of refrigeration equipment, and discloses energy-saving refrigeration equipment which is provided with a refrigerant regulator, the refrigerant regulator comprises a controller, a pressure sensor, an air passage, a filling valve, a refrigerant container, an exhaust valve and a gas collection container, the air passage is communicated with a low-pressure valve, and the measuring end of the pressure sensor is communicated with the air passage; an inlet of the filling valve is communicated with the refrigerant container, an outlet of the filling valve is communicated with the air channel, an inlet of the exhaust valve is communicated with the air channel, an outlet of the exhaust valve is communicated with the air collection container, and the pressure sensor, the filling valve and the exhaust valve are electrically connected with the controller. When a pressure value measured by the pressure sensor is larger than a preset value, the controller controls the exhaust valve to be opened and the filling valve to be closed; when the pressure value measured by the pressure sensor is smaller than the preset value, the controller controls the exhaust valve to be closed and the filling valve to be opened. And the refrigerant container is controlled to fill the refrigerant and the gas collecting container is controlled to discharge and recycle the excessive refrigerant, so that the refrigerant is automatically and accurately adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to an energy-saving refrigeration equipment. BACKGROUND

[0002] The key to refrigeration of refrigeration equipment is refrigerant. After using for a period of time, the refrigeration equipment will cause refrigerant leakage due to component aging; or cause insufficient or excessive refrigerant content due to inaccurate filling during production; or cause refrigerant content to deviate from the preset value due to other human factors. Both filling and recovery of refrigerant require a pre-arranged master to operate on site, which is time-consuming, labor-intensive and costly, delays user use, and produces refrigerant leakage during operation, which is harmful to human health and destroys the environment.

[0003] In order to solve the above problems, the energy-saving refrigeration equipment for automatic refrigerant filling disclosed in the patent with publication number CN119879450 reduces the downward movement of the sealing cone body and the sealing piston in combination with the detection and opening of the infrared control valve, without the need for a pre-arranged master to operate, and can automatically fill the refrigerant. However, the above-mentioned patent relies on mechanical movement and infrared detection, which is prone to cause movement delay and blockage of light detection due to dirt accumulation, resulting in delayed refrigerant filling, poor refrigeration effect, and inability to recover excess refrigerant.

[0004] Therefore, it is necessary to propose a new energy-saving refrigeration equipment and system to solve the problems of traditional refrigeration equipment relying on mechanical movement and infrared detection, which is prone to cause movement delay and blockage of light detection due to dirt accumulation, resulting in delayed refrigerant filling, poor refrigeration effect, and inability to recover excess refrigerant. SUMMARY

[0005] The present application provides an energy-saving refrigeration equipment and method to solve the problems of traditional refrigeration equipment relying on mechanical movement and infrared detection, which is prone to cause movement delay and blockage of light detection due to dirt accumulation, resulting in delayed refrigerant filling, poor refrigeration effect, and inability to recover excess refrigerant.

[0006] The technical problems solved by the present application are realized by the following technical solutions: The energy-saving refrigeration equipment comprises an indoor unit and an outdoor unit, further comprises a condenser, a high-pressure valve, an expansion valve, an evaporator, a low-pressure valve and a compressor which are sequentially communicated, the expansion valve and the evaporator are arranged in the indoor unit, the condenser and the compressor are arranged in the outdoor unit, further comprises a refrigerant regulator, the refrigerant regulator comprises a controller, a pressure sensor, an air passage, a filling valve, a refrigerant container, an exhaust valve and a gas collection container, the air passage is communicated with the low-pressure valve, the pressure sensor is communicated with the air passage, the inlet of the filling valve is communicated with the refrigerant container, the outlet of the filling valve is communicated with the air passage, the inlet of the exhaust valve is communicated with the air passage, the outlet of the exhaust valve is communicated with the gas collection container, the pressure sensor, the filling valve and the exhaust valve are electrically connected with the controller respectively; When the pressure value measured by the pressure sensor is greater than the preset value, the controller controls the exhaust valve to open and the filling valve to close; When the pressure value measured by the pressure sensor is less than the preset value, the controller controls the exhaust valve to close and the filling valve to open.

[0007] Further, the low-pressure valve is further provided with a valve core; When the air passage is connected with the low-pressure valve, the valve core is opened to realize the communication between the air passage and the low-pressure valve; When the air passage is disconnected with the low-pressure valve, the valve core is closed to prevent the refrigerant from leaking from the low-pressure valve.

[0008] Further, the refrigerant container is further provided with a liquid injection port for adding refrigerant from the outside, and the liquid injection port is provided with a liquid injection plug.

[0009] Further, the gas collection container is further provided with a recovery port for recovering gas from the outside, and the recovery port is provided with a recovery plug.

[0010] Further, the refrigerant container is a flexible bag filled with refrigerant.

[0011] Further, the gas collection container is a flexible bag which has been vacuumized.

[0012] Further, the refrigerant regulator is arranged at the bottom of the outdoor unit.

[0013] Further, the pressure sensor is further provided with a pressure gauge for displaying the pressure value measured by the pressure sensor.

[0014] Further, the refrigerant regulator further comprises a bottom shell and a flip cover above the bottom shell, the bottom shell is used for bearing the air passage, the filling valve, the exhaust valve, the refrigerant container and the gas collection container, and the pressure gauge extends above the flip cover.

[0015] Further, the low-pressure valve and the evaporator are communicated through a connecting pipe, the low-pressure valve is provided with an indoor interface which is connected with the connecting pipe, and the indoor interface extends outside the bottom shell.

[0016] The present application has the beneficial effects that: The present application has the beneficial effects that: by setting the refrigerant regulator, the refrigerant regulator includes the controller, the pressure sensor, the air passage, the filling valve, the refrigerant container, the exhaust valve, the gas collection container, the air passage is communicated with the low-pressure valve, the pressure sensor is communicated with the air passage, the inlet of the filling valve is communicated with the refrigerant container, the outlet of the filling valve is communicated with the air passage, the inlet of the exhaust valve is communicated with the air passage, the outlet of the exhaust valve is communicated with the gas collection container, the pressure sensor, the filling valve, and the exhaust valve are respectively electrically connected with the controller; when the pressure sensor measures the pressure value greater than the preset value, the controller controls the exhaust valve to open and the filling valve to close; when the pressure sensor measures the pressure value less than the preset value, the controller controls the exhaust valve to close and the filling valve to open. In this way, through the pressure detection and the cooperation of the filling valve and the exhaust valve, the refrigerant container is controlled to add and collect the refrigerant, and the gas collection container discharges and recovers the excess refrigerant, so that the refrigerant is automatically and accurately adjusted, and the problems of slow movement and inaccurate movement caused by dirt accumulation, blocked light detection, delayed refrigerant addition, poor refrigeration effect, and inability to recover excess refrigerant in the traditional refrigeration equipment relying on mechanical movement and infrared detection are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Fig. 1 It is an internal structure diagram of the existing refrigeration equipment.

[0019] Fig. 2 It is an internal structure diagram of the present application.

[0020] Fig. 3 It is a perspective view of the present application.

[0021] Fig. 4 It is an internal structure diagram of the refrigerant regulator of the present application.

[0022] Among them: 100 - indoor unit, 200 - outdoor unit, 1 - condenser, 2 - high-pressure valve, 3 - expansion valve, 4 - evaporator, 5 - low-pressure valve, 51 - valve core, 52 - indoor interface, 6 - compressor, 7 - refrigerant regulator, 71 - controller, 72 - pressure sensor, 73 - air passage, 74 - filling valve, 75 - refrigerant container, 750 - liquid filling plug, 76 - exhaust valve, 77 - gas collection container, 770 - recovery plug, 78 - pressure gauge, 8 - bottom shell, 9 - flip cover, 10 - connecting pipe. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific drawings.

[0024] Reference Figs. 1 to 4 The energy-saving refrigeration equipment comprises an indoor unit 100 and an outdoor unit 200, further comprises a condenser 1, a high-pressure valve 2, an expansion valve 3, an evaporator 4, a low-pressure valve 5 and a compressor 6 which are sequentially connected, the expansion valve 3 and the evaporator 4 are arranged in the indoor unit 100, the condenser 1 and the compressor 6 are arranged in the outdoor unit 200, further comprises a refrigerant regulator 7, the refrigerant regulator 7 comprises a controller 71, a pressure sensor 72, an air passage 73, a filling valve 74, a refrigerant container 75, an exhaust valve 76 and a gas collection container 77, the air passage 73 is communicated with the low-pressure valve 5, the measuring end of the pressure sensor 72 is communicated with the air passage 73, the inlet of the filling valve 74 is communicated with the refrigerant container 75, the outlet of the filling valve 74 is communicated with the air passage 73, the inlet of the exhaust valve 76 is communicated with the air passage 73, the outlet of the exhaust valve 76 is communicated with the gas collection container 77, the pressure sensor 72, the filling valve 74 and the exhaust valve 76 are electrically connected with the controller 71 respectively; When the pressure value measured by the pressure sensor 72 is greater than the preset value, the controller 71 controls the exhaust valve 76 to open and the filling valve 74 to close; When the pressure value measured by the pressure sensor 72 is less than the preset value, the controller 71 controls the exhaust valve 76 to close and the filling valve 74 to open.

[0025] Through the pressure detection and the cooperation of the filling valve 74 and the exhaust valve 76, the refrigerant container 75 is controlled to add refrigerant and the gas collection container 77 is controlled to discharge and recycle excess refrigerant, so as to realize the automatic and accurate adjustment of the refrigerant, solve the problems of the traditional refrigeration equipment, such as the slow movement and the failure to reach the position due to the dirt, the light detection being blocked, the refrigerant being not added in time, the poor refrigeration effect and the inability to recycle excess refrigerant.

[0026] The low-pressure valve 5 is further provided with a valve core 51, when the air passage 73 is connected with the low-pressure valve 5, the valve core 51 is opened to realize the communication between the air passage 73 and the low-pressure valve 5, when the air passage 73 is disconnected with the low-pressure valve 5, the valve core 51 is closed to prevent the refrigerant from leaking from the low-pressure valve 5. In this way, the refrigerant regulator 7 is convenient to disassemble and assemble, and the refrigerant leakage can be prevented during the disassembly and assembly.

[0027] The refrigerant container 75 is further provided with a liquid injection port for adding refrigerant from the outside, and the liquid injection port is provided with a liquid injection plug 750. In this way, the refrigerant container 75 can be supplemented with refrigerant when the refrigerant in the refrigerant container 75 is insufficient.

[0028] The gas collecting container 77 is also provided with a recovery port for recovering external gas, and the recovery port is provided with a recovery plug 770. This facilitates emptying the gas collecting container 77 when the refrigerant in the gas collecting container 77 is recovered to the full.

[0029] The refrigerant container 75 is a flexible bag containing refrigerant. This avoids the refrigerant container 75 being blocked during filling.

[0030] The gas collecting container 77 is a flexible bag that has been evacuated. This allows the gas collecting container 77 to have sufficient recovery space.

[0031] The refrigerant regulator 7 is arranged at the bottom of one side of the outdoor unit 200. This facilitates the placement of the refrigerant regulator 7.

[0032] The pressure sensor 72 is also provided with a pressure gauge 78 for displaying the pressure value measured by the pressure sensor 72. This facilitates understanding of the pressure condition, so that it can be determined whether the refrigerant regulator 7 is damaged, and facilitates timely maintenance.

[0033] The refrigerant regulator 7 also includes a bottom shell 8 and a flip cover 9 above the bottom shell 8, the bottom shell 8 is used to carry the airway 73, the filling valve 74, the exhaust valve 76, the refrigerant container 75, the gas collecting container 77, and the pressure gauge 78 extends above the flip cover 9. The bottom shell 8 and the flip cover 9 can make the components more integrated and beautiful, and the components are protected.

[0034] The low-pressure valve 5 is connected to the evaporator 4 through a connecting pipe 10, and the low-pressure valve 5 is provided with an indoor interface 52 connected to the connecting pipe 10, and the indoor interface 52 extends outside the bottom shell 8. This facilitates the installation of the refrigerant regulator 7.

[0035] The basic principles and main features of the present application and the advantages of the present application have been shown and described. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An energy-saving refrigeration device, comprising an indoor unit (100) and an outdoor unit (200), and further comprising a condenser (1), a high-pressure valve (2), an expansion valve (3), an evaporator (4), a low-pressure valve (5), and a compressor (6) connected in sequence, wherein the expansion valve (3) and the evaporator (4) are located in the indoor unit (100), and the condenser (1) and the compressor (6) are located in the outdoor unit (200), characterized in that: It also includes a refrigerant regulator (7), which includes a controller (71), a pressure sensor (72), a gas passage (73), a charging valve (74), a refrigerant container (75), an exhaust valve (76), and a gas collection container (77). The gas passage (73) is connected to the low-pressure valve (5), the measuring end of the pressure sensor (72) is connected to the gas passage (73), the inlet of the charging valve (74) is connected to the refrigerant container (75), the outlet of the charging valve (74) is connected to the gas passage (73), the inlet of the exhaust valve (76) is connected to the gas passage (73), and the outlet of the exhaust valve (76) is connected to the gas collection container (77). The pressure sensor (72), the charging valve (74), and the exhaust valve (76) are electrically connected to the controller (71). When the pressure sensor (72) measures a pressure value greater than the preset value, the controller (71) controls the exhaust valve (76) to open and the filling valve (74) to close. When the pressure sensor (72) measures a pressure value less than the preset value, the controller (71) controls the exhaust valve (76) to close and the filling valve (74) to open.

2. The energy-saving refrigeration equipment according to claim 1, characterized in that: The low-pressure valve (5) is also equipped with a valve core (51). When the air passage (73) is connected to the low-pressure valve (5), the valve core (51) opens to allow the air passage (73) to communicate with the low-pressure valve (5); When the air passage (73) is disconnected from the low-pressure valve (5), the valve core (51) closes to prevent refrigerant from leaking from the low-pressure valve (5).

3. The energy-saving refrigeration equipment according to claim 1, characterized in that: The refrigerant container (75) is also provided with a liquid injection port for adding refrigerant from the outside, and a liquid injection plug (750) is provided at the liquid injection port.

4. The energy-saving refrigeration equipment according to claim 1, characterized in that: The gas collection container (77) is also provided with a recovery port for external gas recovery, and a recovery plug (770) is provided at the recovery port.

5. The energy-saving refrigeration equipment according to claim 1, characterized in that: The refrigerant container (75) is a flexible bag containing refrigerant.

6. The energy-saving refrigeration equipment according to claim 1, characterized in that: The gas collection container (77) is a flexible bag that has been evacuated.

7. The energy-saving refrigeration equipment according to claim 1, characterized in that: The refrigerant regulator (7) is located at the bottom of one side of the outdoor unit (200).

8. The energy-saving refrigeration equipment according to any one of claims 1 to 7, characterized in that: The pressure sensor (72) is also provided with a pressure gauge (78) for displaying the pressure value measured by the pressure sensor (72).

9. The energy-saving refrigeration equipment according to claim 8, characterized in that: The refrigerant regulator (7) also includes a bottom shell (8) and a flip cover (9) above the bottom shell (8). The bottom shell (8) is used to carry the gas passage (73), the filling valve (74), the exhaust valve (76), the refrigerant container (75), and the gas collection container (77). The pressure gauge (78) extends above the flip cover (9).

10. The energy-saving refrigeration equipment according to claim 9, characterized in that: The low-pressure valve (5) is connected to the evaporator (4) via a connecting pipe (10). The low-pressure valve (5) is provided with an indoor interface (52) that is connected to the connecting pipe (10). The indoor interface (52) extends out of the bottom shell (8).

Images