Medical center suction system convenient to maintain

By combining dual gas-liquid separators and high-pressure gas, the problem of debris blockage in the maintenance of medical central suction systems has been solved, enabling rapid sewage discharge and simplified maintenance, and ensuring the stable operation of the system.

CN223555237UActive Publication Date: 2025-11-18RIMELD TECH LIMITED COMPANY OF TIANJIN
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Patent Information

Application Number
CN202422319133.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-23
Publication Date
2025-11-18
Estimated Expiration
2034-09-23

AI Technical Summary

Technical Problem

Existing medical central suction systems are prone to system failure during maintenance due to debris clogging the gas-liquid separator. Furthermore, downtime for maintenance when there is only one gas-liquid separator disrupts the normal operation of the hospital.

Method used

A dual gas-liquid separation tank system was designed, equipped with high-pressure gas equipment, which quickly discharges sewage and clears the filter element through high-pressure gas to prevent clogging, and adopts a detachable filter structure to simplify maintenance.

Benefits of technology

This enabled rapid wastewater discharge, prevented filter clogging, improved maintenance efficiency, reduced system downtime, and ensured the normal operation of the hospital.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The medical center suction system convenient to maintain comprises a vacuum tank, a first air inlet pipe is arranged on the side face of the vacuum tank, and a first air outlet pipe is arranged at the upper end of the vacuum tank; the air inlet end of the vacuum pump is communicated with the air outlet pipe I of the vacuum tank; the upper end of each gas-liquid separation tank is provided with a second gas outlet pipe, the lower end of each gas-liquid separation tank is provided with a second gas inlet pipe, the number of the gas-liquid separation tanks is two, the two second gas outlet pipes are both communicated with the first gas inlet pipe, and the second gas inlet pipes and the second gas outlet pipes are both provided with valves; the gas outlet end of the high-pressure gas equipment is respectively communicated with the gas outlet pipes II of the two gas-liquid separation tanks. The sewage treatment device has the beneficial effects that under the action of high-pressure gas of high-pressure equipment, sewage is quickly discharged through the blow-off pipe II, and the high-pressure gas can dredge the filter element and the filter plate, so that the filter element is prevented from being blocked.
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Description

Technical Field

[0001] This utility model belongs to the field of medical negative pressure suction technology, and in particular relates to a medical central suction system that is easy to maintain. Background Technology

[0002] Medical central suction systems primarily utilize vacuum units to create negative pressure in the suction system tubing, generating suction at the terminals of operating rooms, emergency rooms, treatment rooms, and various wards. This is used for suctioning sputum, pus, blood, and ascites during surgery. Medical central suction systems not only improve the medical care environment and reduce the physical labor of medical staff, but also greatly enhance the level of care.

[0003] In actual operation, misoperation frequently occurs, causing debris such as gauze to be sucked into the suction system. Once this debris enters the vacuum pump, it will damage the vacuum pump. The current suction system has the following problems: First, after a period of use, the wastewater in the gas-liquid separator needs to be drained. Currently, the wastewater flows out by gravity, and debris can clog the drain pipe or filter, causing the system to malfunction. The current maintenance method is to disassemble the gas-liquid separator to remove the debris, resulting in low maintenance efficiency. Second, there is only one gas-liquid separator in the system. When the gas-liquid separator becomes clogged, the system must be shut down for maintenance, causing the system to become unusable and affecting the normal operation of the hospital. Utility Model Content

[0004] In view of this, the present invention aims to provide a medical central suction system that is easy to maintain, in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A medical center suction system that is easy to maintain includes:

[0007] A vacuum tank, wherein the vacuum tank has a side air inlet pipe and an air outlet pipe is provided at the top end of the vacuum tank;

[0008] A vacuum pump, wherein the inlet of the vacuum pump is connected to the outlet pipe of the vacuum tank;

[0009] A gas-liquid separator is provided with an outlet pipe II at the upper end and an inlet pipe II at the lower end. There are two gas-liquid separators. Both outlet pipes II are connected to inlet pipe I. Valves are provided on both inlet pipe II and outlet pipe II.

[0010] The high-pressure gas equipment has its outlet end connected to the outlet pipes of two gas-liquid separators.

[0011] Furthermore, the gas-liquid separator includes:

[0012] The tank body has a second drain pipe at the bottom end and a second air inlet pipe located on the side wall at the lower end of the tank body, and the second air inlet pipe is equipped with a valve.

[0013] The top cover is used to close the opening at the top of the tank. A filter chamber is formed between the top cover and the tank. The second air outlet pipe is connected to the filter chamber. A valve is provided between the second air outlet pipe and the air outlet end of the high-pressure gas equipment.

[0014] A filter element is installed between the top cover and the tank body, and the filter element divides the filter chamber into an upper filter chamber and a lower filter chamber.

[0015] The elbow is connected to one end of the air inlet pipe located inside the tank, and the air outlet direction of the elbow is tangent to the inner wall of the tank.

[0016] Furthermore, the lower filter chamber is provided with a first rectifier, which is an inverted conical structure. The upper end of the first rectifier is provided with a guide pipe, and the outer side wall of the first rectifier is fixedly connected to the inner side wall of the tank.

[0017] Furthermore, a second rectifier is provided between the first rectifier and the filter element. The second rectifier corresponds to the position of the guide pipe. The second rectifier has an inverted conical structure. The outer diameter of the second rectifier is smaller than the inner diameter of the tank. The second rectifier is connected to the tank.

[0018] Furthermore, the upper end of the second shroud is fixedly connected to the mounting tube via a connecting rod. The outer diameter of the mounting tube matches the inner diameter of the tank. A second mounting ring is fixedly mounted on the mounting tube, and a first mounting ring is fixedly mounted on the filter element. Both the first and second mounting rings have through holes.

[0019] A flange is fixedly installed at the lower end of the upper cover, and a flange is fixedly installed at the upper end of the tank body. The flange is detachably connected to the flange by bolts, and the bolts pass through the through holes of the mounting rings.

[0020] Furthermore, a filter plate is provided between the second shroud and the filter element, the filter plate has vent holes, and a ring is fixed on the outer side of the filter plate.

[0021] An mounting boss is fixedly provided on the inner side of the mounting tube, and the ring is detachably connected to the mounting boss by connecting bolts.

[0022] Furthermore, there are two vacuum tanks, and the outlet pipes of both vacuum tanks are connected to the inlet end of the vacuum pump.

[0023] The inlet pipes of both vacuum tanks are connected to the connecting pipe, which is connected to the outlet pipes of the two gas-liquid separators.

[0024] Both the air outlet pipe and the air inlet pipe are equipped with valves.

[0025] Furthermore, a drain pipe is provided at the bottom of the vacuum tank.

[0026] Furthermore, the vacuum tank is equipped with a pressure gauge.

[0027] Furthermore, the inlet pipes of both gas-liquid separators are connected to a main pipe, which is connected to multiple equipment belts.

[0028] Compared with existing technologies, the medical central suction system described in this utility model, which is easy to maintain, has the following advantages:

[0029] (1) The medical central suction system described in this utility model is easy to maintain. Under the action of high pressure gas from the high pressure equipment, sewage is quickly discharged through the second drain pipe. The high pressure gas also passes through the filter element and filter plate to prevent the filter element from clogging. Attached Figure Description

[0030] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0031] Figure 1 This is a schematic diagram of the system structure described in an embodiment of the present utility model;

[0032] Figure 2 This is a three-dimensional structural diagram of the gas-liquid separator according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the gas-liquid separator according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the horizontal cross-sectional structure of the gas-liquid separator according to an embodiment of the present invention;

[0035] Figure 5 This is a three-dimensional structural diagram of the mounting pipe for installing the second fairing according to an embodiment of the present invention;

[0036] Figure 6 This is a three-dimensional structural diagram of the mounting pipe described in an embodiment of the present utility model;

[0037] Figure 7 This is a three-dimensional structural diagram of the filter element according to an embodiment of the present utility model;

[0038] Figure 8 This is a three-dimensional structural diagram of the filter plate described in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Vacuum tank; 2. Vacuum pump; 3. Gas-liquid separator; 4. High-pressure gas equipment; 5. Pressure gauge; 6. Connecting pipe; 301. Top cover; 302. Tank body; 303. First rectifier; 304. Second rectifier; 305. Filter plate; 306. Filter element; 307. Mounting pipe; 30101. Second exhaust pipe; 30201. Second drain pipe; 30202. Second inlet pipe; 30203. Elbow; 30301. Guide pipe; 30401. Connecting rod; 30501. Ring; 30601. First mounting ring; 30701. Second mounting ring; 30702. Mounting boss. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] like Figures 1 to 8 As shown, a medical central suction system that is easy to maintain includes:

[0046] Vacuum tank 1, with a side air inlet pipe on the side of vacuum tank 1 and an air outlet pipe at the top of vacuum tank 1.

[0047] Vacuum pump 2, the air inlet of vacuum pump 2 is connected to the air outlet pipe of vacuum tank 1;

[0048] Gas-liquid separator 3, with an outlet pipe 30101 at the upper end of the gas-liquid separator 3 and an inlet pipe 30202 at the lower end of the gas-liquid separator 3. There are two gas-liquid separators 3. Both outlet pipes 30101 are connected to inlet pipe 1. Valves are provided on inlet pipe 30202 and outlet pipe 30101.

[0049] The high-pressure air device 4 has its outlet connected to the outlet pipes 30101 of the two gas-liquid separators 3. The high-pressure air device 4 uses, but is not limited to, existing air compressors.

[0050] The gas-liquid separator 3 includes: a tank body 302, with a drain pipe 30201 at the bottom of the tank body 302, an air inlet pipe 30202 located on the side wall at the lower end of the tank body 302, and a valve on the air inlet pipe 30202; a top cover 301, which is used to close the opening at the upper end of the tank body 302, and a filter chamber is formed between the top cover 301 and the tank body 302, with an air outlet pipe 30101 connected to the filter chamber, and a valve between the air outlet pipe 30101 and the air outlet end of the high-pressure gas device 4; a filter element 306, which is installed between the top cover 301 and the tank body 302, and the filter element divides the filter chamber into an upper filter chamber and a lower filter chamber; and an elbow 30203, which is connected to one end of the air inlet pipe 30202 located inside the tank body 302, and the air outlet direction of the elbow 30203 is tangent to the inner side wall of the tank body 302.

[0051] A first rectifier 303 is provided inside the lower filter chamber. The first rectifier 303 has an inverted conical structure. A guide pipe 30301 is provided at the upper end of the first rectifier 303. The outer diameter of the lower end of the first rectifier 303 matches the inner diameter of the tank body 302. The outer side wall of the first rectifier 303 is fixedly connected to the inner side wall of the tank body 302. A second rectifier 304 is provided between the first rectifier 303 and the filter element 306. The second rectifier 304 is positioned corresponding to the guide pipe 30301. The second rectifier 304 has an inverted conical structure. The outer diameter of the second rectifier 304 is smaller than the inner diameter of the tank body 302. The second rectifier 304 is connected to the tank body 302.

[0052] When gas mixed with sewage and impurities enters the lower filter chamber through inlet pipe 30202 and elbow 30203, the outlet direction of elbow 30203 is tangential to the inner wall of tank 302. The gas moves in a circular motion along the inner wall of tank 302, and the gas temperature drops, causing the sewage and impurities to fall to the bottom of tank 302 (e.g., Figure 4 As shown in the diagram (arrows indicate the gas flow direction), the remaining gas, mixed with mist droplets, passes through the guide pipe 30301 and contacts the upper end of the second rectifier 304. Then, it flips downwards to reduce the flow velocity again before flowing upwards towards the filter chamber through the gap between the second rectifier 304 and the inner side of the tank 302. (e.g., Figure 3 As shown in the figure (the arrow in the figure indicates the direction of gas flow), by further reducing the flow rate, the impact on the filter element 306 is reduced, and gas-liquid separation is fully achieved.

[0053] The upper end of the second rectifier 304 is fixedly connected to the mounting pipe 307 via a connecting rod 30401. The outer diameter of the mounting pipe 307 matches the inner diameter of the tank body 302. A second mounting ring 30701 is fixedly mounted on the mounting pipe 307, and a first mounting ring 30601 is fixedly mounted on the filter element 306. Both the first mounting ring 30601 and the second mounting ring 30701 have through holes. A first flange is fixedly mounted at the lower end of the top cover 301, and a second flange is fixedly mounted at the upper end of the tank body 302. The first flange is detachably connected to the second flange by bolts, which pass through the through holes of the first mounting ring 30601 and the second mounting ring 30701. The second rectifier 304 and the filter element 306 are bolted between the tank body 302 and the top cover 301 for easy disassembly and maintenance.

[0054] A filter plate 305 is provided between the second shroud 304 and the filter element 306. The filter plate 305 has ventilation holes, and a circular ring 30501 is fixedly mounted on its outer side. A mounting boss 30702 is fixedly mounted on the inner side of the mounting tube 307. The circular ring 30501 is detachably connected to the mounting boss 30702 via connecting bolts. The filter plate 305 can prevent large debris from damaging the filter element 306, thus improving the service life of the filter element 306.

[0055] There are two vacuum tanks 1. The outlet pipes of both vacuum tanks 1 are connected to the inlet of vacuum pump 2. The inlet pipes of both vacuum tanks 1 are connected to connecting pipe 6, which in turn connects to the outlet pipes 30101 of the two gas-liquid separators 3. A valve is installed between connecting pipe 6 and the outlet pipe 30101 of the gas-liquid separator 3. Valves are also installed on both the outlet pipe and the inlet pipe. A drain pipe is installed at the bottom of each vacuum tank 1 to remove debris and wastewater. A pressure gauge 5 is installed on each vacuum tank for checking the pressure. The inlet pipes 30202 of both gas-liquid separators 3 are connected to a main pipe, which is connected to multiple equipment belts.

[0056] Work process:

[0057] During implementation, vacuum tank 1 acts as a pressure stabilizer, while two gas-liquid separators 3 are used in standby mode. When the gas-liquid separator 3 in use needs to discharge wastewater, the valves on the inlet pipe 30202 and outlet pipe 30101 of the corresponding gas-liquid separator 3 are closed, and the valve between the outlet pipe 30101 and the connecting pipe 6 is closed. The valves on the inlet pipe 30202 and outlet pipe 30101 of the standby gas-liquid separator 3 are opened. Then, the valve between the high-pressure gas device 4 and the outlet pipe 30101 of the gas-liquid separator 3 is opened, the high-pressure gas device 4 is started, and the drain pipe 30201 is opened. Under the action of the high-pressure gas from the high-pressure device, the wastewater is quickly discharged through the drain pipe 30201. The high-pressure gas also passes through the filter element 306 and filter plate 305, preventing the filter element 306 and filter plate 305 from clogging. When the filter element 306 needs to be replaced, the filter element 306 can be disassembled simply by opening the top cover 301. The operation process is simple and improves work efficiency.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medical central suction system that is easy to maintain, characterized in that, include: Vacuum tank (1), with a side air inlet pipe of the vacuum tank (1) and an air outlet pipe at the upper end of the vacuum tank (1); Vacuum pump (2), the air inlet of the vacuum pump (2) is connected to the air outlet pipe of the vacuum tank (1); A gas-liquid separator (3) is provided with an outlet pipe (30101) at the upper end and an inlet pipe (30202) at the lower end. There are two gas-liquid separators (3). Both outlet pipes (30101) are connected to an inlet pipe. A valve is provided on the inlet pipe (30202). High-pressure gas equipment (4), the gas outlet of the high-pressure gas equipment (4) is connected to the gas outlet pipes (30101) of the two gas-liquid separators (3).

2. The easily maintainable medical central suction system according to claim 1, characterized in that, The gas-liquid separator (3) includes: Tank body (302), the bottom end of the tank body (302) is provided with a second drain pipe (30201), the second air inlet pipe (30202) is located on the side wall at the lower end of the tank body (302), and the second air inlet pipe (30202) is provided with a valve; The upper cover (301) is used to close the opening at the upper end of the tank (302). A filter chamber is formed between the upper cover (301) and the tank (302). The second air outlet pipe (30101) is connected to the filter chamber. A valve is provided between the second air outlet pipe (30101) and the air outlet end of the high-pressure gas device (4). A filter element (306) is installed between the upper cover (301) and the tank body (302), and the filter element divides the filter chamber into an upper filter chamber and a lower filter chamber. Elbow (30203), which is connected to one end of the second air inlet pipe (30202) located inside the tank (302), and the air outlet direction of the elbow (30203) is tangent to the inner wall of the tank (302).

3. The medical central suction system for easy maintenance according to claim 2, characterized in that: The lower filter chamber is provided with a first rectifier (303), which is an inverted cone structure. The upper end of the first rectifier (303) is provided with a guide pipe (30301), and the outer side wall of the first rectifier (303) is fixedly connected to the inner side wall of the tank (302).

4. The medical central suction system for easy maintenance according to claim 3, characterized in that: A second rectifier (304) is provided between the first rectifier (303) and the filter element (306). The second rectifier (304) is positioned corresponding to the guide pipe (30301). The second rectifier (304) has an inverted conical structure. The outer diameter of the second rectifier (304) is smaller than the inner diameter of the tank (302). The second rectifier (304) is connected to the tank (302).

5. A medical central suction system for easy maintenance according to claim 4, characterized in that: The upper end of the second rectifier (304) is fixedly connected to the mounting tube (307) via a connecting rod (30401). The outer diameter of the mounting tube (307) matches the inner diameter of the tank (302). A second mounting ring (30701) is fixedly mounted on the mounting tube (307), and a first mounting ring (30601) is fixedly mounted on the filter element (306). Both the first mounting ring (30601) and the second mounting ring (30701) have through holes. The lower end of the upper cover (301) is fixed with flange one, and the upper end of the tank body (302) is fixed with flange two. Flange one is detachably connected to flange two by bolts, and the bolts pass through the through holes of mounting ring one (30601) and mounting ring two (30701).

6. The medical central suction system for easy maintenance according to claim 5, characterized in that: A filter plate (305) is provided between the second rectifier (304) and the filter element (306). The filter plate (305) has ventilation holes, and a ring (30501) is fixed on the outer side of the filter plate (305). The mounting tube (307) is fixedly provided with a mounting boss (30702) on the inner side, and the ring (30501) is detachably connected to the mounting boss (30702) by connecting bolts.

7. The medical central suction system for easy maintenance according to claim 1, characterized in that: There are two vacuum tanks (1), and the outlet pipes of the two vacuum tanks (1) are connected to the inlet end of the vacuum pump (2). The air inlet pipes of the two vacuum tanks (1) are connected to the connecting pipe (6), and the connecting pipe (6) is connected to the air outlet pipes (30101) of the two gas-liquid separators (3); Both the air outlet pipe and the air inlet pipe are equipped with valves.

8. The medical central suction system for easy maintenance according to claim 1, characterized in that: The vacuum tank (1) is equipped with a drain pipe at the bottom.

9. A medical central suction system that is easy to maintain according to claim 1, characterized in that: The vacuum tank (1) is equipped with a pressure gauge (5).

10. A medical central suction system for easy maintenance according to claim 1, characterized in that: The two gas-liquid separators (3) have their inlet pipes (30202) connected to a main pipe, which is connected to multiple equipment belts.