A medical compressed air station with gas stabilization

Abstract

The utility model discloses a kind of medical compressed air stations of stable gas supply, including screw air compressor, the screw air compressor is connected by pipeline front gas holder, the front gas holder rear end is connected first front filter assembly and second front filter assembly respectively, the first front filter assembly rear end connects main drier, the second front filter assembly rear end connects standby drier;The main drier and the standby drier rear end are connected first rear filter assembly and second rear filter assembly respectively, and the first rear filter assembly and second rear filter assembly are connected by pipeline rear gas holder;The rear gas holder rear end connects pressure reducing device, and the pressure reducing device connects gas cylinder, the top of the gas cylinder is equipped with a plurality of sampling port, and the sampling port is connected to each gas terminal by main pipeline.The utility model has the characteristics of compact structure, good gas supply stability and low work energy consumption, and can be widely applied in medical compressed gas technical field.

Description

Technical Field

[0001] This utility model belongs to the technical field of medical compressed gas supply equipment, specifically relating to a medical compressed air station with stable gas supply. Background Technology

[0002] Medical compressed air stations are a crucial component of a hospital's core life support system, providing clean, dry, safe, continuous, and stable-pressure compressed air for various medical devices, especially ventilators and anesthesia machines. They are also used in applications such as infant care, surgical tool operation, medical equipment testing, and purging of various air supply lines. Therefore, the compressed air supplied by medical compressed air stations has extremely high requirements regarding oil content, water content, and particulate matter count.

[0003] Currently, existing medical compressed air stations mostly consist of air compressors, air tanks, filters, and compressed air dryers. For example, patent application "201820575452.6" describes a medical compressed air system including an air compressor, precision filter I, a drying assembly, precision filter II, and an air balance tank. The air balance tank is connected to a compressed air depressurization device for reducing, filtering, and sterilizing medical air, a two-stage precision filter, and a sterilization filter. The air outlet pipe of the sterilization filter is connected to a medical compressed air pipeline network, effectively providing medical compressed air to hospitals. This medical compressed air system is easy to operate, has a long service life, and can achieve the functions of fully drying, removing impurities, and sterilizing compressed air. For example, patent application number "202121448981.8" describes an integrated medical compressed air system workstation, which includes a medical compressed air system. Through an integrated design, the medical compressed air system is integrated into an integrated room. The workstation can be hoisted as a whole and transported by vehicle, making it suitable for various locations and quickly deployed in emergencies, offering good mobility and wide applicability. However, existing medical compressed air stations, under high volume demand, are prone to unstable air supply pressure due to fluctuations in the air output of the screw air compressor. Furthermore, because the air tank is constantly supplying air, the screw air compressor remains in continuous operation, resulting in significant gas waste and high energy consumption. Therefore, the structure of existing medical compressed air stations needs further improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a medical compressed air station with stable gas supply. It features a compact structure, good gas supply stability, sustainable multi-department supply, and low energy consumption. It adopts a front-mounted and rear-mounted gas storage tank layout and uses redundant filtration and drying systems to ensure a continuous and stable supply of qualified medical compressed gas. It can be widely used in the field of medical compressed gas technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a medical compressed air station with stable air supply, comprising a screw air compressor, the screw air compressor being connected to a pre-storage tank via pipeline, the rear end of the pre-storage tank being connected to a first pre-filter assembly and a second pre-filter assembly respectively, the rear end of the first pre-filter assembly being connected to a main dryer, and the rear end of the second pre-filter assembly being connected to a standby dryer; the rear ends of the main dryer and the standby dryer being connected to a first post-filter assembly and a second post-filter assembly respectively, the first post-filter assembly and the second post-filter assembly being connected to a post-storage tank via pipeline; the rear end of the post-storage tank being connected to a pressure reducing device, the pressure reducing device being connected to a distribution cylinder, the top of the distribution cylinder being provided with several sampling ports, the sampling ports being connected to various air-using terminals via main pipelines.

[0006] As an improvement, two screw air compressors are provided, and the two screw air compressors are arranged side by side and connected to the air control cabinet by cables.

[0007] As an improvement, the air control cabinet is connected to the main power supply line, which is a three-phase five-wire cable.

[0008] As an improvement, the first and second pre-filter components are dust filters with a filtration accuracy of ≤1.5μm.

[0009] As an improvement, both the main dryer and the standby dryer are refrigerated dryers with a pressure dew point of -20 to -55°C.

[0010] As an improvement, the first and second post-filter components are precision oil-water filters.

[0011] As an improvement, both the front and rear gas storage tanks are equipped with horizontal drain valves at the bottom.

[0012] As an improvement, the rear gas storage tank is provided with a lifting lug on the top side and a pressure relief port in the middle of the top; the rear gas storage tank has an observation port in the middle of the side, a pressure display gauge above the observation port, and a support foot at the bottom; the air inlet on the lower side and the air outlet on the upper side of the rear gas storage tank are both connected to control valves.

[0013] As an improvement, the pressure display is connected to an air pressure alarm box, which is equipped with a pressure alarm and connected to the customer's mobile phone or PC via a built-in 4G or wireless network.

[0014] As an improvement, the pressure reducing device is provided in two sets, which are arranged in parallel, and control valves are provided before and after the pressure reducing valve.

[0015] As an improvement, a vertical drain valve is provided at the bottom of the gas distribution cylinder.

[0016] As an improvement, there are 1 to 8 sampling ports, each controlled by an independent ball valve.

[0017] The beneficial effects of this utility model are as follows: A medical compressed air station with stable gas supply features a compact structure, good gas supply stability, sustainable multi-department supply, and low operating energy consumption. It utilizes a pre-storage tank to store the compressed gas generated by the screw air compressor, thus providing a continuous and stable gas source for the subsequent dryer. After processing by the pre- and post-filters and dryer, clean compressed gas is obtained and enters the post-storage tank for storage. Simultaneously, both the filters and dryer are equipped with backup sets to avoid gas supply interruptions. A pressure alarm device is installed on the post-storage tank, which can remotely alarm and provide real-time monitoring when the internal pressure of the tank becomes abnormal. Furthermore, a multi-port distribution cylinder supplies clean compressed gas to various departments in the hospital, improving the utilization rate of the air station and reducing operating costs. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the workflow of the medical compressed air station with stable air supply according to this utility model. Figure 2 This is a schematic diagram of the air storage tank in the medical compressed air station with stable air supply according to this utility model.

[0019] In the diagram: 1. Screw air compressor; 2. Pre-air receiver tank; 3. First pre-filter assembly; 4. Second pre-filter assembly; 5. Main dryer; 6. Standby dryer; 7. First post-filter assembly; 8. Second post-filter assembly; 9. Post-air receiver tank; 10. Pressure reducing device; 11. Air distribution cylinder; 12. Sampling port; 13. Air consumption terminal; 14. Cable; 15. Air control cabinet; 16. Main power supply line; 17. Horizontal drain valve; 18. Pressure display gauge; 19. Control valve; 20. Air pressure alarm box; 21. Vertical drain valve; 91. Lifting lug; 92. Pressure relief port; 93. Observation port; 94. Support leg. Detailed Implementation

[0020] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-2As shown, this embodiment of a medical compressed air station with stable air supply includes a screw air compressor 1. The screw air compressor 1 is connected to a pre-storage tank 2 via pipeline. The rear end of the pre-storage tank 2 is connected to a first pre-filter assembly 3 and a second pre-filter assembly 4, respectively. The rear end of the first pre-filter assembly 3 is connected to a main dryer 5, and the rear end of the second pre-filter assembly 4 is connected to a standby dryer 6. The rear ends of the main dryer 5 and the standby dryer 6 are connected to a first post-filter assembly 7 and a second post-filter assembly 8, respectively. The first post-filter assembly 7 and the second post-filter assembly 8 are connected to a post-storage tank 9 via pipeline. The rear end of the post-storage tank 9 is connected to a pressure reducing device 10. The pressure reducing device 10 is connected to a distribution cylinder 11. The top of the distribution cylinder 11 is provided with several sampling ports 12, and the sampling ports 12 are connected to various air-using terminals 13 via main pipelines.

[0022] Furthermore, there are two screw air compressors 1, and the two screw air compressors 1 are arranged side by side and connected to the air control cabinet 15 through cable 14; specifically, the air control cabinet 15 is connected to the main power input line 16, which is a three-phase five-wire line, and provides power output to the air control cabinet 15 through the main power input line.

[0023] Furthermore, the first pre-filter assembly 3 and the second pre-filter assembly 4 are dust filters with a filtration accuracy of ≤1.5μm. Specifically, the first pre-filter assembly 3 filters the compressed gas for pellet dust, while the second pre-filter assembly 4 serves as a backup filter assembly. When the first pre-filter assembly 3 needs to be replaced or cleaned, the control valve in front of the first pre-filter assembly 3 is managed, and the control valve in front of the second pre-filter assembly 4 is opened to switch between them, ensuring a continuous and uninterrupted supply of gas.

[0024] Furthermore, both the main dryer 5 and the standby dryer 6 are refrigerated dryers with a pressure dew point of -20 to -55°C, effectively removing water and cooling the compressed gas through the low dew point of -20 to -55°C; even further, the first post-filter assembly 7 and the second post-filter assembly 8 are precision oil-water filters, further purifying the compressed gas to remove water, thereby obtaining clean, dry, and qualified medical compressed gas.

[0025] Furthermore, both the front gas storage tank 2 and the rear gas storage tank 9 are equipped with a horizontal drain valve 17 at the bottom, which facilitates the cleaning and discharge of dirt inside the gas storage tank.

[0026] Furthermore, the rear-mounted air tank 9 is provided with a lifting lug 91 on the top side and a pressure relief port 92 in the middle of the top; the rear-mounted air tank 9 has an observation port 93 in the middle of the side, a pressure display gauge 18 on the observation port 93, and a support leg 94 at the bottom; the air inlet on the lower side and the air outlet on the upper side of the rear-mounted air tank 9 are both connected to control valves 19; specifically, the pressure display gauge 18 is connected to an air pressure alarm box 20, which is equipped with a pressure alarm and connected to the customer's mobile phone or PC via a built-in 4G or wireless network, thereby facilitating real-time monitoring of the rear-mounted air tank 9 and preventing abnormal compressed gas supply caused by malfunctions.

[0027] Furthermore, the pressure reducing device 10 is provided in two sets, which are arranged in parallel, and control valves are provided before and after the pressure reducing valve.

[0028] Furthermore, a vertical drain valve 21 is provided at the bottom of the air distribution cylinder 11, through which sewage is discharged in a timely manner.

[0029] Furthermore, the sampling ports 12 are provided in a total of 1 to 8, preferably 3 to 6, and each is controlled by an independent ball valve to open and close. Clean compressed gas is supplied to various departments of the hospital through the independent sampling ports 12, which improves the utilization efficiency of the air station and reduces the operating cost.

[0030] This utility model discloses a medical compressed air station with stable gas supply. It features a compact structure, good gas supply stability, sustainable multi-department supply, and low energy consumption. Its main working process is as follows: First, a screw air compressor 1 is started. The generated compressed gas enters the pre-storage tank 2 through pipelines. The pre-storage tank 2 obtains saturated compressed gas, which then enters the first pre-filter assembly 3 for dust filtration. The filtered compressed gas enters the main dryer 5 for refrigerated drying. After drying to remove moisture, compressed gas with a low dew point of -45℃ is obtained. Finally, it passes through the first post-filter assembly 7 for further processing. The system first performs oil-water filtration and purification to obtain clean and dry medical compressed gas. The medical compressed gas enters the post-storage tank 9 through pipelines for storage, while the pressure gauge monitors to ensure that the gas pressure in the storage tank is qualified and always maintained within the set pressure range. After passing through the pressure reducing valve, the medical compressed gas is independently split through the gas distribution cylinder 11. The split medical compressed gas is then delivered to various user terminals in the hospital through pipelines. In addition, in order to consider unforeseen circumstances, the screw air compressor, filter assembly, dryer, pressure reducing valve, etc. are all equipped with backup settings to ensure a continuous and stable supply of medical compressed gas.

[0031] Finally, it should be noted that the above examples are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A medical compressed air station with stable air supply, comprising a screw air compressor (1), characterized in that, The screw air compressor (1) is connected to the pre-storage tank (2) via a pipeline. The rear end of the pre-storage tank (2) is connected to the first pre-filter assembly (3) and the second pre-filter assembly (4) respectively. The rear end of the first pre-filter assembly (3) is connected to the main dryer (5), and the rear end of the second pre-filter assembly (4) is connected to the standby dryer (6). The rear ends of the main dryer (5) and the standby dryer (6) are connected to the first post-filter assembly (7) and the second post-filter assembly (8) respectively. The first post-filter assembly (7) and the second post-filter assembly (8) are connected to the post-storage tank (9) via a pipeline. The rear end of the post-storage tank (9) is connected to the pressure reducing device (10). The pressure reducing device (10) is connected to the air distribution cylinder (11). The top of the air distribution cylinder (11) is provided with several sampling ports (12). The sampling ports (12) are connected to each air-using terminal (13) via the main pipeline.

2. The medical compressed air station with stable air supply according to claim 1, characterized in that, There are two screw air compressors (1), and the two screw air compressors (1) are arranged side by side and connected to the air control cabinet (15) by cable (14); the air control cabinet (15) is connected to the main power supply line (16), and the main power supply line (16) is a three-phase five-wire cable.

3. The medical compressed air station with stable air supply according to claim 1, characterized in that, The first pre-filter component (3) and the second pre-filter component (4) are dust filters with a filtration accuracy of ≤1.5μm.

4. The medical compressed air station with stable air supply according to claim 1, characterized in that, Both the main dryer (5) and the standby dryer (6) are refrigerated dryers with a pressure dew point of -20 to -55°C.

5. The medical compressed air station with stable air supply according to claim 1, characterized in that, The first post-filter assembly (7) and the second post-filter assembly (8) are precision oil-water filters.

6. The medical compressed air station with stable air supply according to claim 1, characterized in that, Both the front gas storage tank (2) and the rear gas storage tank (9) are equipped with horizontal drain valves (17) at the bottom.

7. The medical compressed air station with stable air supply according to claim 6, characterized in that, The rear gas storage tank (9) has a lifting lug (91) on the top side and a pressure relief port (92) in the middle of the top; the rear gas storage tank (9) has an observation port (93) in the middle of the side, a pressure display gauge (18) on the observation port (93), and a support foot (94) at the bottom; the air inlet on the lower side and the air outlet on the upper side of the rear gas storage tank (9) are both connected to control valves (19).

8. The medical compressed air station with stable air supply according to claim 7, characterized in that, The pressure display (18) is connected to the air pressure alarm box (20), which is equipped with a pressure alarm and is connected to the customer's mobile phone or PC via a built-in 4G or wireless network.

9. The medical compressed air station with stable air supply according to claim 1, characterized in that, The pressure reducing device (10) has two sets, which are arranged in parallel, and control valves are provided before and after the pressure reducing valve.

10. The medical compressed air station with stable air supply according to claim 1, characterized in that, The bottom of the gas cylinder (11) is provided with a vertical drain valve (21); there are 1 to 8 sampling ports (12), and each port is controlled by an independent ball valve.

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