Refrigeration oil storage device

Abstract

The utility model discloses a refrigeration oil storage device which comprises a shell assembly and a nitrogen protection device, a storage space used for storing refrigeration oil is arranged in the shell assembly, and an air inlet and an air outlet which are communicated with the storage space are formed in the shell assembly. The shell assembly is further provided with an oil inlet and an oil outlet, wherein the oil inlet is communicated with the storage space and used for inputting refrigeration oil into the storage space, and the oil outlet is used for outputting the refrigeration oil in the storage space outwards. The nitrogen protection device is connected with the gas inlet and used for inputting nitrogen into the storage space, and the gas outlet is used for discharging the nitrogen when being opened. According to the refrigeration oil storage device, the air inlet and the air outlet are formed in the shell assembly, the nitrogen protection device is connected to the air inlet, and the nitrogen protection device is used for carrying out nitrogen protection on the storage space, so that refrigeration oil cannot adsorb moisture in the storage space, and the quality of the refrigeration oil in the storage process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerating oil storage equipment, in particular to a refrigerating oil storage device. Background Art

[0002] In the prior art, the storage method of air-conditioning refrigerating oil generally uses an oil barrel for storage. Such an oil barrel generally does not have a protection device, resulting in easy adsorption of moisture in the air into the refrigerating oil during storage, leading to a high water content in the refrigerating oil. Moreover, during use, it is necessary to frequently pump out the oil, and the pumping process requires tipping or pumping operations, which will increase the water content inside the oil barrel and affect the quality of the refrigerating oil. Therefore, there is an urgent need for a new air-conditioning refrigerating oil storage device to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a refrigerating oil storage device, aiming to solve the problem that the refrigerating oil is prone to adsorb moisture during the storage process in the prior art.

[0004] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: A refrigerating oil storage device is provided, including a housing assembly and a nitrogen protection device. The interior of the housing assembly has a storage space for storing refrigerating oil. The housing assembly is provided with an air inlet and an air outlet communicating with the storage space, and is also provided with an oil inlet communicating with the storage space for inputting refrigerating oil into the storage space and an oil outlet for outputting the refrigerating oil in the storage space to the outside; the nitrogen protection device is connected to the air inlet for inputting nitrogen into the storage space, and the air outlet is used for discharging nitrogen when opened.

[0005] Further, the nitrogen protection device includes a nitrogen source, an air pump, and a connecting pipe connected in sequence, and the connecting pipe is connected to the air inlet.

[0006] Further, it also includes a nitrogen pressure automatic detection and alarm device provided on the housing assembly for detecting the nitrogen pressure in the storage space and triggering an alarm when it reaches the warning value.

[0007] Further, it also includes a pressure relief valve, which is opened on the housing assembly for controlling the air pressure in the storage space.

[0008] Further, it also includes a liquid level detection member provided on the housing assembly for detecting the liquid level height of the refrigerating oil in the storage space.

[0009] Further, it also includes an oil outlet pipe, one end of which is connected to the oil outlet, and the other end of which extends to the bottom of the storage space.

[0010] Further, it further includes an inspection component, the inspection component includes an inspection port and a flange component, the inspection port is opened on the housing component, and the flange component is connected to the inspection port.

[0011] Further, it further includes at least one annular support member, and the annular support member is arranged along the circumferential direction of the housing component.

[0012] Further, the housing component includes an outer shell main body, a top cover member and a bottom cover member, the top cover member and the bottom cover member respectively cover the top and the bottom of the outer shell main body, and the refrigerant oil storage device further includes a plurality of top support members, one end of the top support member is connected to the top cover member, and the other end of the top support member is connected to the outer shell main body.

[0013] Further, a sewage discharge port is opened at the bottom of the housing component.

[0014] The utility model provides a refrigerant oil storage device, which includes a housing component and a nitrogen protection device. The interior of the housing component has a storage space for storing refrigerant oil. An air inlet and an air outlet communicated with the storage space are arranged on the housing component. An oil inlet communicated with the storage space and used for inputting refrigerant oil into the storage space and an oil outlet for outputting the refrigerant oil in the storage space to the outside are further arranged on the housing component; the nitrogen protection device is connected to the air inlet and used for inputting nitrogen into the storage space, and the air outlet is used for discharging nitrogen when it is opened. By arranging the air inlet and the air outlet on the housing component and connecting the nitrogen protection device to the air inlet, and using the nitrogen protection device to protect the storage space with nitrogen, the refrigerant oil will not adsorb moisture in the storage space, ensuring the quality of the refrigerant oil during the storage process. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

[0016] Figure 1 Structural schematic diagram of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 1 ;

[0017] Figure 2 Cross-sectional view of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 1 ;

[0018] Figure 3 Cross-section of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 2 ;

[0019] Figure 4 Structural schematic of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 2 ;

[0020] Figure 5 Structural schematic of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 3 ;

[0021] Figure 6 Cross-section of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 3 ;

[0022] Figure 7 Structural schematic of a refrigerant oil storage device provided by an embodiment of the present utility model Figure 4 ;

[0023] Figure 8 Flowchart of code matching judgment provided by an embodiment of the present utility model;

[0024] Figure 9 Operation flowchart of a refrigerant oil storage device provided by an embodiment of the present utility model.

[0025] Explanation of reference numerals in the figure:

[0026] 10. Housing assembly; 11. Storage space; 12. Air inlet; 13. Air outlet; 14. Oil inlet; 15. Oil outlet; 16. Outer shell main body; 17. Top cover member; 18. Bottom cover member; 19. Drain port;

[0027] 20. Pressure relief valve; 30. Liquid level detection member; 40. Oil outlet pipe; 50. Inspection assembly; 51. Inspection port; 52. Flange assembly; 60. Annular support member; 70. Top support member. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0030] It should also be understood that the terms used in this specification of the present utility model are merely for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in this specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.

[0031] It should be further understood that the term "and / or" used in this specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] Combined Figures 1 to 3 As shown, an embodiment of the present utility model provides a refrigerant oil storage device, which includes a housing assembly 10 and a nitrogen protection device. The interior of the housing assembly 10 has a storage space 11 for storing refrigerant oil. An air inlet 12 and an air outlet 13 communicating with the storage space 11 are provided on the housing assembly 10. An oil inlet 14 communicating with the storage space 11 and used to input refrigerant oil into the storage space 11 and an oil outlet 15 for outputting the refrigerant oil in the storage space 11 to the outside are further provided on the housing assembly 10; the nitrogen protection device (not shown in the figure, the same below) is connected to the air inlet 12 and is used to input nitrogen into the storage space 11, and the air outlet 13 is used to discharge nitrogen when it is opened.

[0033] In this embodiment, the interior of the housing assembly 10 is provided with a storage space 11 for storing refrigerant oil, and a plurality of interfaces communicating with the storage space 11 are further provided on the housing assembly 10, specifically including:

[0034] Air inlet 12: Provided on the housing assembly 10, connected to the nitrogen protection device, and used to input nitrogen into the storage space 11 to form an inert protection gas environment to prevent oxygen or moisture in the air from entering the storage space 11;

[0035] Air outlet 13: Also provided on the housing assembly 10 and used to discharge excess nitrogen when the nitrogen in the storage space 11 reaches the set pressure;

[0036] Oil inlet 14: Used to convey refrigerant oil from the outside into the storage space 11. The oil inlet 14 is connected to an external oil source through a pipeline and adopts an anti-misoperation design to ensure that different types of refrigerant oil will not be confused during use;

[0037] Oil outlet 15: Used to output the refrigeration oil in the storage space 11 to external usage equipment. The oil outlet 15 is connected to an oil transportation system, and the refrigeration oil can be transported to an oil purifier or other processing equipment through a pipeline.

[0038] Further, the nitrogen protection device is communicated with the storage space 11 through the air inlet 12. Its main function is to form a nitrogen protection layer by inputting nitrogen into the storage space 11 during the storage process of the refrigeration oil, preventing oxygen or moisture in the air from entering the storage space 11 and ensuring the stability of the refrigeration oil. When the nitrogen pressure in the storage space 11 exceeds the set value, the air outlet 13 can be manually or automatically opened to discharge the excess nitrogen, and only enough nitrogen needs to be maintained inside the storage space 11.

[0039] During use, first, the refrigeration oil is input into the storage space 11 through the oil inlet 14, and at the same time, the nitrogen protection device is started to inject nitrogen into the storage space 11 through the air inlet 12. When the liquid level of the refrigeration oil in the storage space 11 reaches the set value, the oil inlet is stopped. The nitrogen protection device will continue to work to ensure that the storage space 11 is filled with nitrogen and prevent air from entering. When the nitrogen pressure in the storage space 11 exceeds the set upper limit, the air outlet 13 can be opened to discharge the excess nitrogen. This refrigeration oil storage device also supports outputting the refrigeration oil in the storage space 11 to external usage equipment, such as an oil purifier or an air-conditioning system, through the oil outlet 15. Through the action of nitrogen protection, the refrigeration oil will not come into contact with air during the entire storage process, thus avoiding the reduction of the quality of the refrigeration oil due to oxidation or moisture absorption. In this embodiment, by setting the nitrogen protection device, the storage space 11 can effectively prevent external air and moisture from entering, ensure that the refrigeration oil does not come into contact with the outside world during storage, and avoid oxidation or moisture absorption.

[0040] In one embodiment, the nitrogen protection device includes a nitrogen source, an air pump, and a connecting pipe connected in sequence, and the connecting pipe is connected to the air inlet 12.

[0041] In this embodiment, the nitrogen protection device includes a nitrogen source, an air pump, and a connecting pipe (not shown in the figure, the same hereinafter). The nitrogen source, the air pump, and the connecting pipe form a complete nitrogen supply system. The nitrogen source is the basic equipment for providing nitrogen, and it continuously supplies pure nitrogen to the entire nitrogen protection system. The nitrogen source can be a liquid nitrogen tank or other forms of nitrogen storage equipment to ensure the stability and sufficiency of nitrogen supply. The nitrogen source is connected to the air pump, and the air pump transports nitrogen to the storage space 11. The air pump is arranged between the nitrogen source and the connecting pipe, and its main function is to extract nitrogen from the nitrogen source and transport it into the storage space 11. The air pump can automatically adjust the nitrogen delivery volume according to the pressure in the storage space 11 to maintain an appropriate pressure of nitrogen in the storage space 11. When the nitrogen pressure in the storage space 11 reaches the set upper limit, the air pump will stop working; when the nitrogen pressure in the storage space 11 drops to the set lower limit, the air pump will automatically start and continue to transport nitrogen to ensure the automatic operation of the system. The air pump transports nitrogen to the storage space 11 through the connecting pipe. One end of the connecting pipe is connected to the air pump, and the other end is connected to the storage space 11 through the air inlet 12 to ensure that nitrogen can smoothly enter the storage space 11. The connecting pipe is made of a material with good sealing performance to avoid nitrogen leakage during transportation and ensure a firm connection.

[0042] During the operation process, the nitrogen source first provides nitrogen, and the air pump extracts nitrogen from the nitrogen source and transports it into the storage space 11 through the connecting pipe. When the nitrogen enters the storage space 11, an inert gas protection layer is formed to isolate oxygen and moisture in the air and prevent the oxidation or moisture absorption of the refrigerating oil. The nitrogen protection device is connected to the air inlet 12 of the storage space 11 to ensure the continuous entry of nitrogen into the storage space 11. When the nitrogen pressure in the storage space 11 exceeds the set upper limit, the air outlet 13 is opened to discharge the excess nitrogen to ensure that the pressure in the storage space 11 is maintained within an appropriate range. Through this automatic control method, the nitrogen protection device can realize the automatic supply and exhaust of nitrogen without manual intervention, greatly improving the convenience and safety of the operation.

[0043] In one embodiment, it further includes a nitrogen pressure automatic detection and alarm device arranged on the housing assembly 10, which is used to detect the nitrogen pressure in the storage space 11 and trigger an alarm when it reaches the warning value.

[0044] In this embodiment, the automatic nitrogen pressure detection and alarm device (not shown in the figure, the same below) mainly consists of a pressure sensor, a control module, and an alarm module. The pressure sensor is installed at the top or side inside the housing assembly 10 and is used to measure the gas pressure in the storage space 11 in real time. The control module is used to receive the pressure data fed back by the pressure sensor and make a judgment based on the preset warning values (including the set upper limit and the set lower limit). When the pressure reaches the warning value, the control module will trigger the alarm module to give an alarm. The pressure sensor is responsible for measuring the nitrogen pressure in the storage space 11 in real time. The pressure sensor senses the internal pressure change through the connection hole inside the storage space 11 and converts the measured pressure signal into an electrical signal, which is transmitted to the control module. The pressure sensor can monitor the pressure change in the storage space 11 to ensure real-time tracking of the nitrogen pressure. The control module is connected to the pressure sensor and makes a judgment based on the preset upper and lower limits. When the nitrogen pressure in the storage space 11 is lower than the set lower limit or higher than the set upper limit, the control module will automatically trigger an alarm signal. The set lower limit can be used to prevent the refrigeration oil in the storage space 11 from contacting the air due to insufficient nitrogen, while the set upper limit is used to avoid excessive pressure in the storage space 11 caused by too much nitrogen, which may pose a safety hazard. The alarm module is connected to the control module. When it detects that the nitrogen pressure exceeds the set range, the alarm module will immediately give an audible and visual alarm to remind the operator to deal with it in time. The alarm module can be set at a prominent position on the housing assembly 10 for the operator to respond quickly.

[0045] During the operation of the refrigeration oil storage device, the nitrogen protection device continuously supplies nitrogen into the storage space 11 to form a stable protection environment. The automatic nitrogen pressure detection and alarm device monitors the nitrogen pressure in the storage space 11 in real time and transmits the pressure data to the control module. If the nitrogen pressure in the storage space 11 is lower than the set lower limit, the control module will trigger the alarm module to prompt the operator to replenish nitrogen; if the nitrogen pressure is too high and exceeds the set upper limit, the alarm module will also give an alarm to prompt the operator to take measures to reduce the pressure. Through this automatic monitoring and alarm system, it can effectively ensure that the nitrogen pressure in the storage space 11 always remains within the safe range, preventing the quality of the refrigeration oil from being damaged due to abnormal pressure or the occurrence of safety hazards in the storage device.

[0046] Combined with Figure 4 As shown, in one embodiment, a pressure relief valve 20 is further included. The pressure relief valve 20 is opened on the housing assembly 10 and is used to control the air pressure in the storage space 11.

[0047] In this embodiment, the pressure relief valve 20 is provided at the top or side of the housing assembly 10, and its specific position is determined according to the housing design and the air pressure control requirements. The function of the pressure relief valve 20 is to automatically open for exhaust when the air pressure in the storage space 11 exceeds the preset safety upper limit, preventing equipment safety hazards caused by excessive air pressure or adverse effects on the quality of the refrigeration oil. The pressure relief valve 20 generally consists of a valve body, a pressure sensing mechanism, and a spring assembly. Both the pressure sensing mechanism and the spring assembly are arranged on the valve body. The valve body is in communication with the storage space 11 and is internally equipped with a pressure sensing mechanism capable of monitoring the air pressure in the storage space 11 in real time. When the pressure exceeds the set pressure relief value (this pressure relief value is larger than the aforementioned set upper limit), the pressure sensing mechanism triggers the spring assembly to automatically open the valve body, releasing the excessive gas to the outside and maintaining the air pressure balance in the storage space 11.

[0048] When the air pressure in the storage space 11 is within the normal range, the pressure relief valve 20 is in a closed state, maintaining the sealing of the storage space 11 and ensuring the stability of the internal environment. At this time, the refrigeration oil in the storage space 11 is isolated from the external air by the action of the nitrogen protection device and is in an inert gas environment to prevent oxidation and moisture absorption. When the air pressure in the storage space 11 exceeds the set pressure relief value due to excessive nitrogen or other reasons, the pressure sensing mechanism detects the air pressure change and triggers the spring assembly to automatically open the valve body. After the pressure relief valve 20 is opened, the excess gas will be discharged from the storage space 11 until the air pressure returns to the set range. After the pressure relief is completed, the valve body automatically resets and closes again to ensure the sealing of the storage space 11. The opening pressure of the pressure relief valve 20 can be set according to specific application requirements and is usually matched with the design pressure of the storage space 11.

[0049] Combined Figure 5 As shown in the figure, in one embodiment, it further includes a liquid level detection member 30 provided on the housing assembly 10, and the liquid level detection member 30 is used to detect the liquid level height of the refrigeration oil in the storage space 11.

[0050] In this embodiment, the liquid level detection component 30 generally consists of a float, a liquid level sensor, and a signal outputter. The float moves up and down according to the change in the liquid level of the refrigerant oil in the storage space 11. The liquid level sensor detects the position change of the float in real time, converts the position information into an electrical signal, and transmits it to the signal outputter to reflect the liquid level height in the storage space 11. The material of the float is selected as a corrosion-resistant material with a density lower than that of the refrigerant oil, which can float on the surface of the refrigerant oil in the storage space 11. As the liquid level of the refrigerant oil rises and falls, the float moves up and down in the storage space 11 accordingly. The liquid level sensor is installed outside the housing assembly 10 of the storage space 11 and is responsible for detecting the position change of the float. It can measure the liquid level of the refrigerant oil in real time according to the position of the float and transmit the data to the signal outputter. The signal outputter is connected to the liquid level sensor and is used to convert the liquid level height information detected by the liquid level sensor into a visual or alarm signal for the operator to monitor the liquid level of the refrigerant oil in real time. The signal outputter can display the liquid level height in digital or pointer form on the operation panel, or issue an alarm signal when the liquid level is too high or too low by setting the upper and lower liquid level limits to remind the operator to take corresponding measures.

[0051] Combined with Figure 6 and Figure 7 As shown, in one embodiment, an oil outlet pipe 40 is further included. One end of the oil outlet pipe 40 is connected to the oil outlet 15, and the other end of the oil outlet pipe 40 extends to the bottom of the storage space 11.

[0052] In this embodiment, one end of the oil outlet pipe 40 is connected to the oil outlet 15. The oil outlet 15 is arranged outside the housing assembly 10 and is connected to external equipment (such as an oil purifier, a filling machine) to facilitate the output of the refrigerant oil. The other end of the oil outlet pipe 40 extends to the bottom of the storage space 11 to ensure that the refrigerant oil in the storage space 11 can be completely pumped out during the output process of the refrigerant oil, minimizing the residue of the refrigerant oil to the greatest extent. The oil outlet pipe 40 is usually made of corrosion-resistant and high-pressure-resistant materials to ensure its good durability and stability during long-term contact with the refrigerant oil and the transportation process. The oil outlet pipe 40 can be set in an "L" shape, and the inner diameter of the oil outlet pipe 40 needs to be designed to ensure that the flow rate of the refrigerant oil is stable during output, without insufficient flow due to too small an inner diameter of the oil outlet pipe 40, nor unnecessary bubbles or waste due to too fast a flow rate caused by too large an inner diameter of the oil outlet pipe 40.

[0053] In one embodiment, an inspection component 50 is further included. The inspection component 50 includes an inspection port 51 and a flange assembly 52. The inspection port 51 is opened on the housing assembly 10, and the flange assembly 52 is connected to the inspection port 51.

[0054] In this embodiment, the inspection port 51 is opened on the side or top of the housing assembly 10, and the specific position can be set according to the design and maintenance requirements of the storage device. The main function of the inspection port 51 is to provide an entrance to the storage space 11 for operators to perform internal inspections, cleaning, or maintenance. When shutdown maintenance is required, the operator can check the state of the refrigeration oil, equipment wear, or other problems inside the storage space 11 through the inspection port 51 to ensure the normal operation of the device. The flange assembly 52 is usually made of materials with high pressure resistance and corrosion resistance, which can ensure safety in a high-pressure environment. Through the connection of the flange assembly 52, the inspection port 51 remains closed during normal operation to prevent external air or impurities from entering the storage space 11, ensuring the purity of the refrigeration oil and the stability of the storage environment.

[0055] During normal operation, the inspection port 51 is closed by the flange assembly 52. When inspection or maintenance of the storage space 11 is required, the operator can release the flange assembly 52, open the inspection port 51, and perform inspection or maintenance operations on the interior of the storage space 11 through this inspection port 51. After the inspection is completed, the operator can reinstall the flange assembly 52.

[0056] In one embodiment, there is also at least one annular support member 60, and the annular support member 60 is arranged along the circumferential direction of the housing assembly 10.

[0057] In this embodiment, the annular support member 60 is a ring structure and is arranged along the outer circumferential direction of the housing assembly 10. Generally, the annular support member 60 is made of high-strength metal materials such as steel or aluminum alloy, which has good compressive performance and corrosion resistance. According to the design requirements of the storage space 11, in a storage device with a larger capacity or that needs to withstand a higher internal pressure, the annular support member 60 can be provided in multiple numbers and distributed at different height positions of the housing assembly 10 to ensure uniform stress on the entire housing assembly 10 and guarantee the overall stability of the housing. Since appropriate air pressure and oil volume need to be maintained inside the storage space 11, the housing assembly 10 will be subjected to internal air pressure and external environmental pressure during daily use. The setting of the annular support member 60 can effectively disperse and bear these pressures, preventing the housing assembly 10 from deforming or being damaged when the pressure changes. The number and spacing of the annular support member 60 can be adjusted according to the design dimensions and pressure requirements of the storage device.

[0058] In one embodiment, the housing assembly 10 includes an outer shell main body 16, a top covering member 17, and a bottom covering member 18. The top covering member 17 and the bottom covering member 18 respectively cover the top and bottom of the outer shell main body 16. The refrigeration oil storage device further includes a plurality of top support members 70. One end of the top support member 70 is connected to the top covering member 17, and the other end of the top support member 70 is connected to the outer shell main body 16.

[0059] In this embodiment, the housing main body 16 is made of a high-strength metal material, such as steel or aluminum alloy, which has good compressive and corrosion resistance properties and can maintain a long service life while withstanding the pressure of the refrigeration oil liquid. The top cover member 17 is used to seal the top of the housing main body 16, and the bottom cover member 18 is used to seal the bottom of the housing main body 16. The two cooperate with the housing main body 16 to form a complete enclosed space (i.e., the storage space 11). The top cover member 17 and the bottom cover member 18 are also made of pressure-resistant and corrosion-resistant materials to ensure that they are not affected by external factors during the storage of the refrigeration oil.

[0060] When the pressure in the storage space 11 increases, the top cover member 17 may be subjected to an outward pressure from the inside. At this time, the top support member 70 helps the top cover member 17 evenly transfer the pressure to the housing main body 16 through the connections at both ends, dispersing the force on the top cover member 17 and preventing the top cover member 17 from deforming or falling off under the action of the pressure. The top support members 70 are evenly distributed around the top cover member 17, which can effectively balance the pressure from different directions, ensure that the connection force between the top cover member 17 and the housing main body 16 is evenly distributed, and thus improve the overall stability of the equipment.

[0061] In one embodiment, a drain port 19 is provided at the bottom of the housing assembly 10.

[0062] In this embodiment, the drain port 19 is provided at the bottom of the housing assembly 10, close to the lowest point of the storage space 11. This design ensures that when draining, the residual refrigeration oil and deposited impurities in the storage space 11 can be effectively discharged, avoiding the accumulation of residues at the bottom of the storage device. By providing the drain port 19 at the bottom, it is possible to ensure the complete removal of the accumulated impurities and improve the cleaning and maintenance effects.

[0063] After the refrigeration oil storage device is used for a period of time, there may be some refrigeration oil remaining at the bottom of the storage space 11, accompanied by certain impurities or sediments. To ensure the cleanliness of the refrigeration oil storage device and the high quality of the refrigeration oil, the operator can open the drain port 19 to drain the refrigeration oil residues and impurities deposited at the bottom by gravity. According to actual needs, the drain port 19 can be designed for manual control or automatic control.

[0064] Combined with Figure 8 and Figure 9As shown, in actual applications, the operator first performs a material identification operation by scanning the networked device. The specific process is as follows: The operator uses a barcode scanner to scan the codes of the oil extraction gun and the oil drum, and performs an association and matching through the network. If the two material codes match, the system indicator light will show green, indicating that the verification is passed; if the two material codes do not match, the system indicator light will show red, indicating a coding error. After confirming that the material codes are correct, the operator can perform the operation of extracting the refrigeration oil. During the extraction process, the refrigeration oil is transported from the oil drum area to the corresponding oil tank (i.e., the refrigeration oil storage device, the same below) through the oil extraction gun. After the extraction operation of the refrigeration oil is completed, the refrigeration oil will be stored in the oil tank and enter the storage and preparation stage. At this stage, in order to ensure the quality and safety of the refrigeration oil, the nitrogen protection device on the top of the oil tank is activated, and nitrogen is filled into the oil tank. On the one hand, it expels the air inside the oil tank to prevent the refrigeration oil from oxidizing or deteriorating due to contact with oxygen or moisture in the air; on the other hand, through nitrogen injection, the pressure inside the oil tank is balanced to ensure that the pressure inside and outside the oil tank remains stable during the extraction and injection of the refrigeration oil. In addition, the oil outlet of the oil tank is connected to the oil purifier. After the refrigeration oil is purified, it can be directly used in the production line, realizing immediate extraction and use, simplifying the operation process in the production process, and improving the production efficiency.

[0065] In addition, in this embodiment, the refrigerant oil storage device can adopt a large-capacity oil tank structure, such as an oil tank with a capacity of 9 cubic meters. In contrast, the storage devices used in the prior art are usually 200L oil drums. Since the capacity of the oil drums is small and the oil depot is far from the production line, during the production process, the oil drums need to be pulled multiple times for transportation, and personnel must be arranged to handle the transportation and recycling of the refrigerant oil drums. By adopting a large-capacity oil tank in this embodiment, efficient storage of the refrigerant oil can be achieved. The feeding personnel can directly pump the refrigerant oil into the oil tank, ensuring that no additional personnel need to be arranged for switching during the production process, reducing the waste of human and material resources and the workload of the personnel involved in transporting the refrigerant oil. Due to the small volume of the oil drums in the prior art and the fact that different air conditioners require different refrigerant oils, that is, there are various types of air conditioner refrigerant oils at the production site. When storing and using, it is necessary to distinguish the types of air conditioner refrigerant oils. During the production process, the oil drums need to be frequently replaced, which is prone to confusion and errors, resulting in the wrong use of the refrigerant oil. In this embodiment, the adoption of a large-capacity oil tank solves the switching problem, reduces the anomalies caused by personnel switching the refrigerant oil, solves the problem of confusion and errors in the use of the refrigerant oil, reduces the switching time, and improves the production efficiency. Frequent operation with small-volume oil drums is also likely to cause oil leakage, which will not only cause environmental pollution but also affect the health of the operators. At the same time, bubbles are easily generated during the pouring or pumping process, affecting the quality and stability of the refrigerant oil. In this embodiment, a large-capacity oil tank is adopted, and the oil inlet and outlet are used for oil inlet and outlet, reducing the risk of refrigerant oil leakage and the safety problems and environmental pollution caused by leakage. A scanning and networking device is also used for material identification operations to effectively monitor and manage the storage and transportation process of the refrigerant oil, preventing waste and loss of the oil fluid, eliminating errors in the use of the refrigerant oil caused by manual operation mistakes, ensuring production consistency, and ensuring the correct use of the refrigerant oil.

[0066] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigeration oil storage device, characterized in that, It includes a housing assembly and a nitrogen protection device. The interior of the housing assembly has a storage space for storing refrigeration oil. An air inlet and an air outlet communicating with the storage space are provided on the housing assembly. An oil inlet communicating with the storage space and used for inputting refrigeration oil into the storage space and an oil outlet for outputting the refrigeration oil in the storage space outward are also provided on the housing assembly. The nitrogen protection device is connected to the air inlet and is used for inputting nitrogen into the storage space. The air outlet is used for discharging nitrogen when opened.

2. The refrigerant oil storage device according to claim 1, wherein The nitrogen protection device includes a nitrogen source, an air pump and a connecting pipe connected in sequence. The connecting pipe is connected to the air inlet.

3. The refrigerant oil storage device according to claim 1, wherein It also includes a nitrogen pressure automatic detection and alarm device provided on the housing assembly, which is used for detecting the nitrogen pressure in the storage space and triggering an alarm when it reaches the warning value.

4. The refrigerant oil storage device according to claim 1, wherein It also includes a pressure relief valve, which is opened on the housing assembly and is used for controlling the air pressure in the storage space.

5. The refrigerant oil storage device according to claim 1, wherein, It also includes a liquid level detection member provided on the housing assembly, and the liquid level detection member is used for detecting the liquid level height of the refrigeration oil in the storage space.

6. The refrigerant oil storage device according to claim 1, wherein, It also includes an oil outlet pipe, one end of which is connected to the oil outlet, and the other end of the oil outlet pipe extends to the bottom of the storage space.

7. The refrigerant oil storage device according to claim 1, characterized in that It also includes an inspection assembly, and the inspection assembly includes an inspection port and a flange assembly. The inspection port is opened on the housing assembly, and the flange assembly is connected to the inspection port.

8. The refrigerant oil storage device according to claim 1, wherein It also includes at least one annular support member, and the annular support member is arranged along the circumferential direction of the housing assembly.

9. The refrigerant oil storage device according to claim 1, wherein, The housing assembly includes an outer shell main body, a top cover member and a bottom cover member. The top cover member and the bottom cover member respectively cover the top and the bottom of the outer shell main body. The refrigeration oil storage device also includes a plurality of top support members, one end of the top support member is connected to the top cover member, and the other end of the top support member is connected to the outer shell main body.

10. The refrigerant oil storage device according to claim 1, characterized in that, A sewage discharge port is opened at the bottom of the housing assembly.

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