Air compressor and air supply system

Abstract

The utility model provides a kind of air compressor and gas supply system, it is related to gas supply equipment technical field, air compressor, including first gas supply device, second gas supply device and gas source output, the first gas supply device includes air compressor, air treatment structure and first gas supply pipeline, the air compressor includes compression pump and compressor switch, the compressor switch is electrically connected with the compression pump, for control the compression pump start or stop;The air treatment structure is communicated with the air outlet of air compressor, and the air outlet of air compressor is communicated with the gas source output by the first gas supply pipeline;The second gas supply device includes external gas source mouth and second gas supply pipeline, one end of the external gas source mouth is used to communicate external gas source, and the other end of the external gas source mouth is communicated with the gas source output by the second gas supply pipeline.The utility model can improve the gas supply reliability of air compressor.

Description

Technical Field

[0001] This utility model relates to the field of air supply equipment technology, and more specifically, to an air compressor and an air supply system. Background Technology

[0002] Air compressors are commonly used in industries such as hospitals, laboratories, and food to provide clean air for pneumatic equipment such as pneumatic rehabilitation devices and dental treatment equipment.

[0003] In related technologies, an air compressor mainly includes an external air source port, a pressure reducing valve, and an air supply pipeline. The external air source port is used to connect to an external air source, such as a medical compressed air system in a hospital gas engineering system. The external air source port is connected to pneumatic equipment through the air supply pipeline. The pressure reducing valve is installed in the air supply pipeline to adjust the air pressure between the external air source port and the pneumatic equipment. However, if the external air source fails, it cannot provide clean compressed air to the pneumatic equipment, resulting in a weak air supply reliability of the air compressor. Utility Model Content

[0004] The problem this invention addresses is how to improve the air supply reliability of an air compressor.

[0005] To solve the above problems, this utility model provides an air compressor and an air supply system.

[0006] In a first aspect, this utility model provides an air compressor, including a first air supply device, a second air supply device, and an air source outlet. The first air supply device includes an air compressor, an air handling structure, and a first air supply pipeline. The air compressor includes a compressor pump and a compressor switch. The compressor switch is electrically connected to the compressor pump and is used to control the compressor pump to start or stop. The air handling structure is connected to the air outlet of the compressor pump, and the air outlet of the compressor pump is connected to the air source outlet through the first air supply pipeline.

[0007] The second gas supply device includes an external gas source port and a second gas supply pipeline. One end of the external gas source port is used to connect to an external gas source, and the other end of the external gas source port is connected to the gas source output port through the second gas supply pipeline.

[0008] Optionally, the second air supply device further includes an air pressure detection device and a first electrically controlled valve. The air pressure detection device is connected to the second air supply pipeline and is used to detect the air pressure value of the external air source port. The first electrically controlled valve is disposed on the first air supply pipeline and is used to control the connection or disconnection between the air compressor and the air source output port according to the air pressure value.

[0009] Optionally, the air compressor further includes a manifold, wherein the first air supply line and the second air supply line are respectively connected to one end of the manifold, and the other end of the manifold is connected to the air source output port; the air handling structure includes a first drainer, which is disposed on the manifold and is used to separate water vapor from the compressed air in the manifold to obtain pure compressed air.

[0010] Optionally, the first air supply device further includes a first check valve, which is disposed on the first air supply pipeline to allow fluid in the first air supply pipeline to flow from the air compressor to the manifold, and to prevent fluid in the manifold and / or fluid from an external air source from flowing to the air compressor.

[0011] And / or, the second air supply device further includes a second check valve, which is disposed on the second air supply line to allow fluid in the second air supply line to flow from the external air source port to the manifold, and to prevent fluid in the manifold and / or the air compressor from flowing to the external air source port.

[0012] Optionally, the air handling structure further includes an air filter assembly connected to the air intake of the air compressor.

[0013] Optionally, the first air supply device further includes an air storage container, and the air handling structure further includes a second drainer. The air inlet of the air storage container is connected to the air outlet of the air compressor, and the air outlet of the air storage container is connected to the second drainer. The second drainer is disposed on the first air supply pipeline.

[0014] Optionally, the air compressor also includes an evaporator, and the second outlet of the second drain is connected to the inlet of the evaporator.

[0015] Optionally, the air compressor further includes a second electrically controlled valve and an exhaust pipe, the two ends of which are respectively connected to the second outlet of the second drain and the inlet of the evaporator. The second electrically controlled valve is disposed on the exhaust pipe and is used to control the connection or disconnection between the outlet of the air storage container or the inlet of the second drain and the evaporator.

[0016] Optionally, the air compressor further includes a housing and a mounting bracket, wherein the mounting bracket and the first drainer are disposed in the housing, the first drainer is fixed on the mounting bracket, and the first outlet of the first drainer is connected to the inlet of the evaporator.

[0017] Secondly, this utility model provides an air supply system, including an air compressor as described above, and an external air source, wherein the external air source is connected to the external air source port of the air compressor.

[0018] The beneficial effects of the air compressor and air supply system of this utility model are:

[0019] The air compressor mainly includes a first air supply device, a second air supply device, and an air source output port. The air source output port is used to connect to pneumatic equipment. The first air supply device can supply air to the pneumatic equipment in the following way: for example, the air compressor of the first air supply device has an inlet end and an outlet end. The inlet end of the air compressor is used to obtain air, so that the obtained air is compressed by the air compressor to output compressed air. The air treatment structure is connected to the outlet end of the air compressor to perform water vapor separation treatment on the compressed air output from the outlet end of the air compressor to output pure compressed air. The outlet end of the air compressor is connected to the air source output port through the first air supply pipeline, so that the pure compressed air after being treated by the air treatment structure is delivered to the air source output port through the first air supply pipeline, thereby realizing the air supply operation for pneumatic equipment.

[0020] The second air supply device can supply air to pneumatic equipment in the following ways: for example, an external air source provides pure compressed air, which is then delivered to the air source outlet through the second air supply pipeline, thus enabling the air supply operation to the pneumatic equipment.

[0021] When the external air source fails to supply air, the compressor switch can be operated manually to start the compressor pump. The compressor pump then outputs clean compressed air to the pneumatic equipment through the air handling unit, thereby shortening the air supply interruption time caused by the external air source failure and improving the air supply reliability of the air compressor. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the piping structure of the air compressor in an embodiment of this utility model;

[0023] Figure 2 This is an exploded structural diagram of the air compressor in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100 - Air source outlet; 210 - Air compressor; 220 - First air supply line; 230 - First check valve; 240 - Air filter assembly; 241 - Filter screen; 242 - Secondary filter; 243 - Bag filter; 250 - Air storage container; 260 - Second drain; 270 - Radiator; 280 - Refrigerator; 310 - External air source port; 320 - Second air supply line; 330 - Air pressure detection device; 340 - First electrically controlled valve; 350 - Second check valve; 410 - First drain; 420 - Manifold; 430 - Pressure reducing valve; 510 - Evaporator; 610 - Second electrically controlled valve; 620 - Exhaust line; 630 - Overflow valve; 710 - Housing; 711 - Cover; 712 - Base; 720 - Mounting bracket. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0027] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0028] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] To address the problems existing in the aforementioned related technologies, this embodiment provides an air compressor and an air supply system.

[0030] like Figure 1As shown in the figure, an air compressor provided by this utility model embodiment includes a first air supply device, a second air supply device, and an air source output port 100. The first air supply device includes an air compressor 210, an air handling structure, and a first air supply pipeline 220. The air compressor 210 includes a compressor pump and a compressor switch. The compressor switch is electrically connected to the compressor pump and is used to control the compressor pump to start or stop. The air handling structure is connected to the air outlet of the compressor pump, and the air outlet of the compressor pump is connected to the air source output port 100 through the first air supply pipeline 220.

[0031] The second gas supply device includes an external gas source port 310 and a second gas supply pipeline 320. One end of the external gas source port 310 is used to connect to an external gas source, and the other end of the external gas source port 310 is connected to the gas source output port 100 through the second gas supply pipeline 320.

[0032] Specifically, the compression pump of the air compressor 210 is used to compress the acquired air to output compressed air with a certain pressure and temperature.

[0033] The compressor pump switch can be a manual switch, such as a rotary switch or a push-button switch, which can be operated manually; or it can be an electric switch, such as a relay switch or a contactor switch, so that it can be controlled to open or close via an external control device.

[0034] The air handling structure is connected to the outlet end of the compressor pump. This can be understood as the air handling structure being connected to the outlet end of the air compressor 210, and being used to perform water vapor separation on the compressed air output from the outlet end of the air compressor 210 to output pure compressed air. The air handling structure is also connected to the inlet end of the air compressor 210, and is used to perform dust removal on the air entering the air compressor 210 to remove various impurities in the air and form clean air, so that the clean air enters the inlet end of the air compressor 210.

[0035] The air source outlet 100 can serve as an external output connector for the entire air compressor, used to connect with external pneumatic equipment to supply the clean compressed air generated by the air compressor to the pneumatic equipment. Pneumatic equipment refers to equipment that requires clean compressed air, such as pneumatic rehabilitation devices, cardiopulmonary resuscitation machines, and dental treatment equipment.

[0036] The external air source port 310 is an air source interface that connects to an external air source. The external air source is used to provide clean compressed air, which is then output to the air source output port 100 via the second air supply line 320.

[0037] In this embodiment, the air compressor mainly includes a first air supply device, a second air supply device, and an air source output port 100. The air source output port 100 is used to connect to pneumatic equipment. The first air supply device can supply air to the pneumatic equipment in the following way: for example, the air compressor 210 of the first air supply device has an inlet end and an outlet end. The inlet end of the air compressor 210 is used to obtain air, and the obtained air is compressed by the air compressor 210 to output compressed air. The air treatment structure is connected to the outlet end of the air compressor 210 to perform water vapor separation treatment on the compressed air output from the outlet end of the air compressor 210 to output pure compressed air. The outlet end of the air compressor 210 is connected to the air source output port 100 through the first air supply pipeline 220, so that the pure compressed air after being treated by the air treatment structure is delivered to the air source output port 100 through the first air supply pipeline 220, thereby realizing the air supply operation for the pneumatic equipment.

[0038] The second air supply device can supply air to pneumatic equipment in the following ways: for example, an external air source provides pure compressed air, which is then delivered to the air source output port 100 through the second air supply pipeline 320, thereby enabling the air supply operation to the pneumatic equipment.

[0039] When the external air source fails to supply air, the compressor switch can be operated manually to start the compressor pump. The compressor pump then outputs clean compressed air to the pneumatic equipment through the air handling unit, thereby shortening the air supply interruption time caused by the external air source failure and improving the air supply reliability of the air compressor.

[0040] Optionally, combined Figure 1 As shown, the second air supply device further includes a pressure detection device 330 and a first electrically controlled valve 340. The pressure detection device 330 is connected to the second air supply pipeline 320 and is used to detect the air pressure value of the external air source port 310. The first electrically controlled valve 340 is disposed on the first air supply pipeline 220 and is used to control the connection or disconnection between the air compressor 210 and the air source output port 100 according to the air pressure value.

[0041] Specifically, the air pressure detection device 330 can be connected to the second air supply line 320. The air pressure detection device 330 can be a gas pressure sensor or a pressure switch. Since the external air source is connected to the second air supply line 320 through the external air source port 310, the air pressure value of the pure compressed air delivered to the second air supply line 320 through the external air source port 310 can be detected in real time through the air pressure detection device 330 connected to the second air supply line 320. Therefore, the air pressure value can be understood as the pressure value of the pure compressed air output by the external air source.

[0042] The first electrically controlled valve 340 may be installed on the first air supply line 220. The first electrically controlled valve 340 can be manually opened or closed, or the first electrically controlled valve 340 can be turned on or off according to the air pressure value detected by the air pressure detection device 330. For example, the air compressor also includes a control device, the air pressure detection device 330 is electrically connected to the signal input terminal of the control device, and the control terminal of the control device is electrically connected to the first electrically controlled valve 340.

[0043] In this optional embodiment, if the air pressure detected by the air pressure detection device 330 is greater than a preset threshold, such as 0.28 MPa, the first solenoid valve 340 can be disconnected by the control device, and pure compressed air is supplied to the air source output port 100 only through the external air source through the external air source port 310.

[0044] In related technologies, if the air pressure delivered from the external air source to the second air supply pipeline 320 through the external air source port 310 is lower than a preset threshold, it can be determined that the external air supply is insufficient, which will affect the working effect of the pneumatic equipment. Therefore, if the air pressure detected by the air pressure detection device 330 is less than or equal to the preset threshold, for example, 0.28 MPa, the first solenoid valve 340 can be opened by the control device to open the first air supply pipeline 220 between the compressor pump and the air source output port 100, and the compressor switch can be opened to start the compressor pump. Clean compressed air can then be supplied to the air source output port 100 simultaneously through the air compressor 210 and the external air source, thereby providing a larger output flow rate for the pneumatic equipment. The control device can be an MCU controller.

[0045] When the air compressor 210 is started for the first time, it is in the start-up state. At this time, the external air source and the air compressor 210 supply air simultaneously. After running for a period of time (e.g., 10 minutes), the first solenoid valve 340 can be disconnected by the control device to cut off the air supply from the air compressor 210 to the air source output port 100 (but the compressor is still running). At this time, the air is supplied by the external air source alone. If the air pressure value detected by the air pressure detection device 330 is lower than the preset threshold, e.g., 0.28 MPa, the control device controls the first solenoid valve 340 to open, so that in addition to the air supply from the external air source, the air compressor 210 also supplies air to the pneumatic equipment at the same time, avoiding a temporary shortage of the pressure of the pure compressed air supplied to the air source output port 100.

[0046] Next time, after running for a period of time (e.g., 10 minutes), cut off the air supply to the air compressor 210. If the air pressure value (external air source pressure) detected by the air pressure detection device 330 is greater than 0.28 MPa and continues for a period of time, it is determined that the air pressure value of the external air source meets the requirements, and then the air compressor 210 is turned off.

[0047] Optionally, combined Figure 1As shown, the air compressor also includes a manifold 420, with the first air supply line 220 and the second air supply line 320 respectively connected to one end of the manifold 420, and the other end of the manifold 420 connected to the air source outlet 100; the air handling structure includes a first drain 410, which is disposed on the manifold 420 and is used to separate water vapor from the compressed air in the manifold 420 to obtain pure compressed air.

[0048] Specifically, one end of the first air supply line 220 is connected to the air compressor 210, one end of the second air supply line 320 can be connected to the external air source port 310, and the other end of the first air supply line 220 and the second air supply line 320 are connected to one end of the manifold 420, and the other end of the manifold 420 is connected to the air source output port 100. Therefore, the manifold 420 can be used as a connecting pipe structure for the first air supply line 220 and the second air supply line 320 to be connected to the air source output port 100 respectively.

[0049] In this optional embodiment, since the first gas supply line 220 and the second gas supply line 320 are respectively connected to the gas source output port 100 through the manifold 420, the gas source output port 100 can be supplied with dual gas sources through the manifold 420.

[0050] Combination Figure 1 As shown, the first air supply device also includes a freezer 280, which is installed on the first air supply pipeline 220. The air inlet of the freezer 280 is connected to the air outlet of the air compressor 210, so as to cool and separate water vapor by cooling the compressed air output by the air compressor 210 through the freezer 280. The air outlet of the freezer 280 is connected to the first drainer 410 through the manifold 420. The first drainer 410 is installed on the manifold 420. The freezer 280 outputs the cooled compressed air to the first drainer 410 installed on the manifold 420. The compressed air was cooled by the freezer 280, so there is condensate in the compressed air output from the freezer 280. The first drainer 410 can drain the cooled compressed air to remove the condensate generated after the cooling process.

[0051] Among them, freezer 280 refers to a freeze dryer.

[0052] The air compressor also includes an evaporator 510, which can be installed above the compression pump in the air compressor 210. The freezer 280 has a freezer drain port, which can be connected to the inlet of the evaporator 510 via a solenoid valve, so that the condensate formed in the freezer 280 can flow into the evaporator 510 through the solenoid valve. This arrangement has at least the following three advantages:

[0053] For example, firstly, when the temperature of the compressed air output by the air compressor 210 is very low, if the condensate that has been cooled by the freezer 280 is directly discharged into the atmosphere, it is easy for it to freeze at the freezer drain outlet, causing blockage of the freezer drain outlet of the freezer 280. This prevents the condensate inside the freezer 280 from being discharged, affecting the drying effect of the freezer 280, and may even damage the freezer 280. Therefore, by connecting the freezer drain outlet of the freezer 280 to the inlet of the evaporator 510, and since the evaporator 510 is installed on top of the compressor pump, the heat generated during the operation of the compressor pump is conducted to the evaporator 510, so that the temperature of the evaporator 510 is usually maintained at around 50°C (above the freezing point). Connecting the freezer drain outlet of the freezer 280 to this relatively "warm" area inside the evaporator 510 can ensure that the discharged condensate will not freeze at the freezer drain outlet, ensuring unobstructed drainage.

[0054] Secondly, the condensate formed in the freezer 280 flows into the evaporator 510 through the solenoid valve. The lower-temperature condensate (temperature much higher than 2-5°C) entering the evaporator 510 is transferred to the compressor pump below through heat conduction, which can cool the area above the compressor pump in the air compressor 210.

[0055] Thirdly, if the freezer drain outlet of the freezer 280 is discharged to the atmosphere, it is equivalent to opening a hole to the atmosphere in the entire first air supply line 220, which will cause continuous leakage of compressed air, thus wasting compressed air. However, by connecting the freezer drain outlet of the freezer 280 to the inlet of the evaporator 510, and connecting the drain outlet to the inside of the evaporator 510 under system pressure, it means that drainage is carried out under the internal pressure environment of the system. When the drain valve is opened, the condensate is discharged into the evaporator 510 cavity at the same pressure, without causing leakage of compressed air to the atmosphere, thus avoiding energy waste.

[0056] The principle by which the refrigerator 280 can condense water is as follows: Through the refrigeration technology of the refrigerator 280, the temperature of the compressed air can be accurately and effectively reduced (usually between 2°C and 10°C), so that the water vapor in the compressed air reaches a supersaturated state (i.e., condenses into condensate / liquid water) and then condenses and precipitates out, thereby keeping the humidity in the compressed air within the required reasonable range, and thus obtaining high-quality pure compressed air.

[0057] Optionally, combined Figure 1 As shown, the first air supply device further includes a first one-way valve 230, which is disposed on the first air supply pipeline 220 and is used to allow fluid in the first air supply pipeline 220 to flow from the air compressor 210 to the manifold 420, and to prevent fluid in the manifold 420 and / or fluid from the external air source from flowing to the air compressor 210.

[0058] And / or, the second air supply device further includes a second one-way valve 350, which is disposed on the second air supply line 320 for allowing fluid in the second air supply line 320 to flow from the external air source port 310 to the manifold 420, and for preventing fluid in the manifold 420 and / or the air compressor 210 from flowing to the external air source port 310.

[0059] Specifically, both the first check valve 230 and the second check valve 350 have unidirectional conduction characteristics. In other words, when compressed air flows through the corresponding check valve, it can only flow from one direction to another, and cannot flow from one direction to another.

[0060] The first one-way valve 230 is used to prevent the flow of fluid from the manifold 420 and / or the external air source to the air compressor 210, meaning that the first one-way valve 230 can only prevent the flow of fluid from the manifold 420 to the air compressor 210; or, the first one-way valve 230 can only prevent the flow of fluid from the external air source to the air compressor 210; or, the first one-way valve 230 can prevent both the flow of fluid from the manifold 420 and the flow of fluid from the external air source to the air compressor 210.

[0061] Similarly, the second one-way valve 350 is used to prevent the fluid in the manifold 420 and / or the air compressor 210 from flowing to the external air source port 310, meaning that the second one-way valve 350 can only prevent the fluid in the manifold 420 from flowing to the external air source port 310; or, the second one-way valve 350 can only prevent the fluid in the air compressor 210 from flowing to the external air source port 310; or, the second one-way valve 350 is used to prevent the fluid in the manifold 420 and the air compressor 210 from flowing to the external air source port 310.

[0062] For example, the first one-way valve 230 is disposed on the first air supply line 220 so that the compressed air output by the air compressor 210 can flow forward along the first air supply line 220 through the first one-way valve 230 to the manifold 420. The first one-way valve 230 can restrict the compressed air from the air source output port 100 and the external air source from flowing in the opposite direction through the manifold 420 and the first air supply line 220 to the air compressor 210.

[0063] Similarly, the second one-way valve 350 is installed on the second air supply line 320, so that the pure compressed air output from the external air source flows forward along the second air supply line 320 through the second one-way valve 350 to the manifold 420. The second one-way valve 350 can restrict the compressed air from the air source output port 100 (manifold 420) and the air compressor 210 from flowing backward through the second air supply line 320 to the external air source. Thus, through the first one-way valve 230 and the second one-way valve 350, the compressed air entering the manifold 420 can be prevented from flowing back in reverse when there is dual air supply, which could damage the air compressor 210 in the first air supply device and the external air source connected to the external air source port 310 of the second air supply device, thereby ensuring the operational safety of the air compressor and the external air source.

[0064] Optionally, combined Figure 1 As shown, the air handling structure also includes an air filter assembly 240, which is connected to the air intake end of the air compressor 210.

[0065] Specifically, the air intake side of the air filter assembly 240 is used to obtain outside air, and the air outlet side of the air filter assembly 240 is used to connect with the air intake end of the air compressor 210, so as to filter the outside air entering the air intake end of the air compressor 210 through the air filter assembly 240 to form clean air, so as to prevent dust and other impurities in the outside air from entering the air compressor 210 and affecting the normal operation of the air compressor 210.

[0066] The air filter assembly 240 may adopt the following structure, for example, the air filter assembly 240 includes a filter screen 241, a secondary filter 242 and a capsule filter 243, the filter screen 241 may be a dust filter screen 241; the secondary filter 242 may be a water separator or an air filter.

[0067] In this optional embodiment, outside air first passes through filter 241 to filter out dust. Then, the dust-free air flows through secondary filter 242 to remove moisture, oil droplets, and impurities, ensuring that the gas reaches the required level of purification for the system. The air then passes through secondary filter 242 and then through capsule filter 243 to further remove contaminants from the compressed air, thus providing clean air to the inlet of air compressor 210. Therefore, the air filtration assembly 240 is used to remove dust, moisture, oil droplets, impurities, and contaminants from outside air, ensuring that clean air enters air compressor 210 and correspondingly extending the service life of air compressor 210.

[0068] Optionally, combined Figure 1As shown, the first air supply device further includes an air storage container 250, and the air handling structure further includes a second drainer 260. The air inlet of the air storage container 250 is connected to the air outlet of the air compressor 210, and the air outlet of the air storage container 250 is connected to the second drainer 260. The second drainer 260 is disposed on the first air supply pipeline 220.

[0069] Specifically, the gas storage container 250 can adopt a gas storage tank structure. The second drainer 260 has the same structure as the first drainer 410.

[0070] The first air supply device also includes a radiator 270, and the air outlet of the air compressor 210 can be connected to the air inlet of the air storage container 250 through the radiator 270.

[0071] In this optional embodiment, since the temperature of the compressed air output by the air compressor 210 is relatively high (generally between 80°C and 150°C), and since the outlet of the air compressor 210 is connected to the inlet of the radiator 270, the compressed air output by the air compressor 210 can be reduced to 40-50°C (close to ambient temperature) by air cooling or water cooling through the radiator 270. The outlet of the radiator 270 is connected to the inlet of the air storage tank, so that the volume of compressed air at the cooling port can be reduced through the radiator 270. This not only increases the effective air storage capacity of the air storage container 250, but also the cooling effect of the radiator 270 can cool the high-temperature air output from the air compressor 210 to produce liquid water, thereby reducing the corrosion of the inner wall of the air storage container 250 by the liquid water entering the air storage container 250. Furthermore, the compressed air cooled by the radiator 270 can also reduce the degree of corrosion of the pipeline between the air compressor 210 and the air storage container 250.

[0072] The air storage container 250 can effectively absorb the exhaust pulsation of compressed air output from the air compressor 210, providing stable pressure downstream of the air storage container 250; and the air storage container 250 can also use its internal space to appropriately reduce the flow rate of compressed air, so that liquid water, oil droplets, and particulate matter in the compressed air entering the air storage container 250 settle and collect at the bottom of the air storage container 250, which is equivalent to further improving the purity of the compressed air.

[0073] The outlet of the air storage container 250 is connected to the second drain 260. The second drain 260 can discharge liquid pollutants such as condensate, sludge, and rust from the compressed air output from the outlet of the air storage container 250, so as to prevent the liquid pollutants in the compressed air from being carried downstream of the second drain 260 by the airflow and contaminating the refrigerator 280.

[0074] Optionally, combined Figure 1As shown, the air compressor also includes an evaporator 510, and the second outlet of the second drain 260 is connected to the inlet of the evaporator 510.

[0075] Specifically, the bottom end of the second drainer 260 is provided with a second outlet.

[0076] In this optional embodiment, if the second drainer 260 directly discharges the condensate into the atmosphere, in a low-temperature environment (especially <0°C): the exposed part of the drain outlet of the second drainer 260 is prone to rapid freezing, causing the drain outlet of the second drainer 260 to be blocked by ice, preventing the condensate from being discharged; if the second outlet of the second drainer 260 is connected to the inlet of the evaporator 510, the condensate discharged from the second outlet of the second drainer 260 can quickly enter the evaporator 510, which not only avoids the second outlet of the second drainer 260 from freezing or being blocked, but also allows the high-temperature condensate to cool the area above the compressor pump in the air compressor 210 after it is discharged into the evaporator 510.

[0077] Optionally, combined Figure 1 As shown, the air compressor also includes a second electrically controlled valve 610 and an exhaust pipe 620. The two ends of the exhaust pipe 620 are respectively connected to the second outlet of the second drain 260 and the inlet of the evaporator 510. The second electrically controlled valve 610 is disposed on the exhaust pipe 620 and is used to control the connection or disconnection between the outlet of the air storage container 250 or the inlet of the second drain 260 and the evaporator 510.

[0078] Specifically, the second electrically controlled valve 610 may be a solenoid valve that can be controlled to open or close by a control device.

[0079] In this optional embodiment, when the compressor pump is in operation, the second solenoid valve 610 can be shut off by the control device, thus keeping the second solenoid valve 610 in a closed state. Before the compressor pump of the air compressor 210 starts, the second solenoid valve 610 is opened to connect the outlet of the gas storage container 250 with the inlet of the evaporator 510, so that the gas between the outlet of the second drain 260 or the outlet of the gas storage container 250 and the external air source port 310 is discharged into the evaporator 510 through the second solenoid valve 610, thereby preventing the air compressor from starting under pressure and affecting the starting effect of the air compressor 210.

[0080] Optionally, combined Figure 1 and Figure 2 As shown, the air compressor also includes a housing 710 and a mounting bracket 720. The mounting bracket 720 and the first drain 410 are disposed inside the housing 710. The first drain 410 is fixed on the mounting bracket 720, and the first outlet of the first drain 410 is connected to the inlet of the evaporator 510.

[0081] Specifically, the housing 710 may include a cover 711 and a base 712. The mounting bracket 720 can be fixedly installed on the base 712. Various components of the air compressor, such as the first drain 410, the second drain 260, the air storage container 250, the evaporator 510, and the air compressor 210, can be fixedly installed on the mounting bracket 720. The cover 711 is a shell structure with an internal frame and an open bottom. The cover 711 and the base 712 can be connected by means of snaps, bolts, or other fasteners to encapsulate the various components of the air compressor inside the housing 710.

[0082] The function of connecting the first outlet of the first drainer 410 to the inlet of the evaporator 510 is the same as the function of connecting the second outlet of the second drainer 260 to the inlet of the evaporator 510, and will not be described again here.

[0083] In this optional embodiment, in related technologies, the first drainer 410 is typically located outside the compressor housing 710 and requires manual removal for drainage. In this embodiment, the first drainer 410 is installed inside the housing 710, and its first outlet is connected to the inlet of the evaporator 510. This allows the condensate discharged from the first outlet of the first drainer 410 to enter the evaporator 510, eliminating the need for manual drainage and improving the user experience of the air compressor. The first drainer 410 and the second drainer 260 may have automatic or manual drainage functions.

[0084] The air compressor also includes an overflow valve 630. One end of the overflow valve 630 is connected to the outlet of the air storage container 250, and the other end of the overflow valve 630 can be connected to the evaporator 510. When the pressure of the compressed air output from the air storage container 250 entering the first air supply line 220 is too high, the excess gas can be discharged into the evaporator 510 through the overflow valve 630 to relieve the pressure of the first air supply line 220.

[0085] The air compressor also includes a pressure reducing valve 430, which can be installed on the manifold 420. The high-pressure pure compressed air supplied to the manifold 420 by the first and second air supply devices can be adjusted by the pressure reducing valve 430 and then delivered to the pneumatic equipment through the air source output port 100, so as to avoid the compressed air output from the air source output port 100 being too high and damaging the pneumatic equipment.

[0086] The working principle of the first air supply device of the air compressor is as follows:

[0087] Outside air is filtered by air filter assembly 240. The filtered clean air enters the air compressor inlet, and the air compressor outputs high-temperature, high-pressure compressed air. The compressed air is cooled by radiator and then enters the air storage container. The compressed air output from the air storage container's outlet passes sequentially through the second drain valve, the freezer, the first solenoid valve, the first check valve, the pressure reducing valve (to regulate the compressed gas pressure), and the first drain valve before entering the air source outlet. The condensate contained in the compressed air output from the air storage container is discharged downstream through the second drain valve and the first drain valve into the evaporator.

[0088] This utility model provides an air supply system, including an air compressor as described in the above embodiment, and an external air source, wherein the external air source is connected to the external air source port 310 of the air compressor.

[0089] Specifically, air compressors can be used in medical respiratory equipment, oxygen generation equipment, pneumatic rehabilitation devices, cardiopulmonary resuscitation machines, dental treatment equipment, etc. The external air source can be a medical compressed air system within a hospital gas engineering system, or an external gas cylinder containing pure compressed air.

[0090] The air supply system of this embodiment has the same beneficial effects on the prior art as the air compressor described above, and will not be repeated here.

[0091] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An air compressor, characterized in that, It includes a first air supply device, a second air supply device, and an air source outlet (100). The first air supply device includes an air compressor (210), an air handling structure, and a first air supply pipeline (220). The air compressor (210) includes a compressor pump and a compressor switch. The compressor switch is electrically connected to the compressor pump and is used to control the compressor pump to start or stop. The air handling structure is connected to the air outlet of the compressor pump, and the air outlet of the compressor pump is connected to the air source outlet (100) through the first air supply pipeline (220). The second gas supply device includes an external gas source port (310) and a second gas supply pipeline (320). One end of the external gas source port (310) is used to connect to an external gas source, and the other end of the external gas source port (310) is connected to the gas source output port (100) through the second gas supply pipeline (320).

2. The air compressor according to claim 1, characterized in that, The second air supply device further includes an air pressure detection device (330) and a first electrically controlled valve (340). The air pressure detection device (330) is connected to the second air supply pipeline (320) and is used to detect the air pressure value of the external air source port (310). The first electrically controlled valve (340) is installed on the first air supply pipeline (220) and is used to control the connection or disconnection between the compressor pump and the air source output port (100) according to the air pressure value.

3. The air compressor according to claim 1, characterized in that, It also includes a manifold (420), the first air supply line (220) and the second air supply line (320) are respectively connected to one end of the manifold (420), and the other end of the manifold (420) is connected to the air source outlet (100); the air handling structure includes a first drainer (410), which is disposed on the manifold (420) and is used to separate water vapor from the compressed air in the manifold (420) to obtain pure compressed air.

4. The air compressor according to claim 3, characterized in that, The first air supply device further includes a first one-way valve (230), which is disposed on the first air supply pipeline (220) for allowing fluid in the first air supply pipeline (220) to flow from the air compressor (210) to the manifold (420), and for preventing fluid in the manifold (420) and / or fluid from the external air source from flowing to the air compressor (210); And / or, the second air supply device further includes a second check valve (350), which is disposed on the second air supply line (320) for allowing fluid in the second air supply line (320) to flow from the external air source port (310) to the manifold (420), and for preventing fluid in the manifold (420) and / or the air compressor (210) from flowing to the external air source port (310).

5. The air compressor according to claim 1, characterized in that, The air handling structure also includes an air filter assembly (240), which is connected to the air intake end of the air compressor (210).

6. The air compressor according to claim 3, characterized in that, The first air supply device further includes an air storage container (250), and the air handling structure further includes a second drain (260). The air inlet of the air storage container (250) is connected to the air outlet of the air compressor (210), and the air outlet of the air storage container (250) is connected to the second drain (260). The second drain (260) is disposed on the first air supply pipeline (220).

7. The air compressor according to claim 6, characterized in that, It also includes an evaporator (510), and the second outlet of the second drain (260) is connected to the inlet of the evaporator (510).

8. The air compressor according to claim 7, characterized in that, It also includes a second electrically controlled valve (610) and an exhaust pipe (620). The two ends of the exhaust pipe (620) are respectively connected to the second outlet of the second drain (260) and the inlet of the evaporator (510). The second electrically controlled valve (610) is installed on the exhaust pipe (620) and is used to control the connection or disconnection between the outlet of the gas storage container (250) or the inlet of the second drain (260) and the evaporator (510).

9. The air compressor according to claim 7, characterized in that, It also includes a housing (710) and a mounting bracket (720), the mounting bracket (720) and the first drainer (410) are disposed inside the housing (710), the first drainer (410) is fixed on the mounting bracket (720), and the first outlet of the first drainer (410) is connected to the inlet of the evaporator (510).

10. A gas supply system, characterized in that, The air compressor as described in any one of claims 1 to 9 is further comprising an external air source, wherein the external air source is connected to the external air source port (310) of the air compressor.

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