A compressed air safety valve accessory pipe drainage device

CN224801447UActive Publication Date: 2026-09-25SHANGHAI LIFENGAS CO LTD
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Patent Information

Application Number
CN202521860184.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-09-25
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

[0004]为了解决现有排水装置气损大、易堵塞和自动化程度低的问题,本实用新型提供了一种压缩空气安全阀附属管道排水装置

Benefits of technology

[0020]该种压缩空气安全阀附属管道排水装置,通过设置两组接头弯管,使其构成两路排水管路,通过自动排水器实现自动排水,且使得排水过程无气损。此外,每个排水管路各设置有防堵过滤器,当某一个过滤器损坏后,另一路也能正常过滤排水,有效避免了因过滤器损坏带来的维护不便,保障生产稳定性和连续性。

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Abstract

The utility model discloses a compressed air safety valve accessory pipeline drainage device belongs to drainage device technical field. This kind of compressed air safety valve accessory pipeline drainage device, including safety valve and external pipeline, one end of external pipeline is installed with first flange, and the external pipeline is passed through first flange with one end intercommunication of safety valve, and the bottom of safety valve is connected with safety valve accessory pipeline, and the middle segment bottom of safety valve accessory pipeline is connected with drainage tube, and two first joint elbow pipes are connected with the first joint elbow pipe respectively in two of drainage tube, and the bottom of two first joint elbow pipes is connected with the connecting pipe respectively, and the utility model discloses set up two groups of joint elbow pipe, make its constitute two -way drainage pipeline, realize automatic drainage through automatic drainer, and make the drainage process no gas loss.
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Description

Technical Field

[0001] This utility model relates to the field of drainage device technology, specifically a drainage device for an auxiliary pipeline of a compressed air safety valve. Background Technology

[0002] Compressed air, as the second most important power source after electricity in industry, is also a versatile process air source with varying quality requirements depending on the application. Air contains moisture, dust, and other impurities. Generally, a self-cleaning filter is installed before the air compressor to remove impurities except for moisture. With changes in temperature and pressure, condensation will form in the pipelines. If this condensation is not drained promptly, especially if the pipelines connected to safety valves become overflowing with water, the safety valves will fail to activate properly, leading to serious safety problems and economic losses. Therefore, effectively draining water from the pipelines connected to safety valves is crucial.

[0003] In compressed air processes, air compressor outlets are typically equipped with drying devices. However, these devices are often installed after the safety valve's auxiliary piping, failing to address the issue of the safety valve failing to activate when the auxiliary piping overflows with moisture. Considering practical factors such as cost and structural complexity, installing a drainage device on the safety valve's auxiliary piping becomes a necessary choice. Current air compressor systems use electromagnetic valves to control automatic drainers for condensate drainage. Chinese utility model patent CN208935839U discloses "An Automatic Drainage Device for Compressed Air Pipelines," which achieves automatic drainage through a photoelectric switch, electromagnetic valve, filter, and water tank, and features two drainage paths. Chinese utility model patent CN206555105U discloses "A Zero-Gas-Consumption Drainage Device for Multi-Output Compressed Air Pipelines," which uses a gas-liquid separator, filter, electromagnetic valve, and liquid tank to achieve automatic drainage without venting, and features multiple drainage branch pipes. These patents effectively solve the problems of high air loss, easy clogging, low automation, and high randomness of opening caused by long-term semi-open manual drainage methods. However, in practical applications, problems have arisen such as difficulty in repairing broken solenoid valves or gas-liquid separators, and difficulty in cleaning and maintaining clogged filters. Utility Model Content

[0004] To address the problems of high air loss, easy clogging, and low automation in existing drainage devices, this utility model provides a drainage device for an auxiliary pipeline of a compressed air safety valve.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A compressed air safety valve auxiliary pipeline drainage device includes a safety valve and an external pipeline. One end of the external pipeline is equipped with a first flange, and the external pipeline is connected to one end of the safety valve through the first flange. The bottom end of the safety valve is connected to a safety valve auxiliary pipeline, and the bottom of the middle section of the safety valve auxiliary pipeline is connected to a drain pipe. Two of the drain pipes are respectively connected to first connector bends, and the bottom ends of the two first connector bends are respectively connected to connecting pipes. The bottom ends of the two connecting pipes are sequentially provided with a first manual ball valve, an anti-clogging filter, a second connector bend, an automatic drainer, and a second manual ball valve from top to bottom.

[0007] Furthermore, the drainage pipe includes a vertical pipe and a horizontal pipe, and the bottom surface of the safety valve auxiliary pipe is welded to the top surface of the vertical pipe.

[0008] The advantages of adopting the above-mentioned further solution are that it can accurately collect condensate at the bottom of the pipe and use gravity to guide the water to flow downwards; the vertical pipe and the horizontal pipe work together to change the direction of water flow, so that the water can be smoothly delivered to the subsequent drainage components; and the welded connection enhances the sealing performance and prevents water leakage.

[0009] Furthermore, the bottom end of the vertical pipe is connected to the top surface of the horizontal pipe, and both ends of the horizontal pipe are respectively connected to one end of the two first joint bends.

[0010] The beneficial effects of adopting the above-mentioned further solution are that the two ends of the horizontal pipe are connected to the first joint bend to form a "vertical collection and horizontal delivery" water flow path, which expands the diversion range and ensures that the water in the middle section of the safety valve auxiliary pipe is discharged without dead corners; the horizontal pipe design makes the water evenly distributed to the drainage components on both sides, improving drainage efficiency.

[0011] Furthermore, the outer wall of the anti-clogging filter is provided with a drain outlet and a water outlet on both sides, one end of the drain outlet is connected to the top of the second manual ball valve, and one end of the water outlet is connected to one end of the second connector bend.

[0012] The beneficial effects of adopting the above-mentioned further solution are that the drain outlet of the anti-clogging filter can periodically discharge filtered impurities to avoid clogging the drainage channel; the outlet delivers the filtered clean water to the second connector bend to prevent impurities from entering the automatic drainer and causing it to malfunction.

[0013] Furthermore, one end of the second connector bend is connected to the top surface of the automatic drainer.

[0014] The advantages of adopting the above-mentioned further solution are that the second connector bend connects the anti-clogging filter and the automatic drainer, which can flexibly adjust the pipeline direction to adapt to different installation spaces; the bend design reduces water flow impact, allowing water to flow smoothly into the automatic drainer, ensuring that it accurately senses the water level and automatically drains water.

[0015] Furthermore, a second flange is installed between the safety valve and the safety valve's auxiliary pipeline.

[0016] The advantages of adopting the above-mentioned further solution are that the second flange connection between the safety valve and the safety valve's auxiliary pipeline facilitates the disassembly and maintenance of both. When the pipeline or safety valve malfunctions, it can be quickly separated for repair. At the same time, the flange connection has strong sealing performance, preventing compressed air leakage.

[0017] Furthermore, the first manual ball valve and the second manual ball valve are located on the same axis.

[0018] The beneficial effect of adopting the above-mentioned further solution is that it allows the water to flow in a straight line inside the pipe, reducing resistance and eddies, and increasing the drainage speed.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This type of compressed air safety valve's auxiliary pipeline drainage device uses two sets of connecting bends to form two drainage pipelines. Automatic drainage is achieved through an automatic drainer, ensuring zero air loss during the drainage process. Furthermore, each drainage pipeline is equipped with an anti-clogging filter. If one filter fails, the other pipeline can still filter and drain normally, effectively avoiding maintenance inconvenience caused by filter damage and ensuring production stability and continuity. Attached Figure Description

[0021] Figure 1 A three-dimensional schematic diagram of a drainage device for an auxiliary pipeline of a compressed air safety valve provided by this utility model;

[0022] Figure 2 A front view of a compressed air safety valve auxiliary pipeline drainage device provided by this utility model;

[0023] Figure 3 A schematic diagram of the drainage pipe structure of a compressed air safety valve auxiliary pipeline drainage device provided by this utility model;

[0024] Figure 4 This utility model provides a drainage device for an auxiliary pipeline of a compressed air safety valve. Figure 1 An enlarged schematic diagram of structure A in the middle.

[0025] In the diagram: 1. Safety valve; 2. Safety valve auxiliary pipe; 3. Drain pipe; 301. Vertical pipe; 302. Horizontal pipe; 4. First connector bend; 5. Connecting pipe; 6. First manual ball valve; 7. Anti-clogging filter; 8. Second connector bend; 9. Automatic drain; 10. Second manual ball valve; 11. External pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 This utility model provides a technical solution: a drainage device for an auxiliary pipeline of a compressed air safety valve, including a safety valve 1 and an external pipeline 11. A first flange is installed at one end of the external pipeline 11, which connects to one end of the safety valve 1 via the first flange. An auxiliary pipeline 2 is connected to the bottom of the safety valve 1. A drain pipe 3 is connected to the bottom of the middle section of the auxiliary pipeline 2. Two of the drain pipes 3 are connected to first connector bends 4, and the bottom ends of the two first connector bends 4 are connected to connecting pipes 5. From top to bottom, the bottom ends of the two connecting pipes 5 are sequentially equipped with a first manual ball valve 6, an anti-clogging filter 7, a second connector bend 8, an automatic drainer 9, and a second manual ball valve 10. By setting two sets of connector bends 4, two drainage pipelines are formed. Automatic drainage is achieved through the automatic drainer 9, ensuring no air loss during the drainage process. Furthermore, each drainage pipeline is equipped with an anti-clogging filter 7. When one filter fails, the other pipeline can still filter and drain normally, effectively avoiding maintenance inconvenience caused by filter failure and ensuring production stability and continuity.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] As an embodiment of this utility model, the drainage pipe 3 further includes a vertical pipe 301 and a horizontal pipe 302. The bottom surface of the safety valve auxiliary pipe 2 is welded to the top of the vertical pipe 301, which can accurately collect the condensate at the bottom of the pipe and guide the water downward by gravity. The vertical pipe 301 and the horizontal pipe 302 work together to change the direction of water flow, so that the water is stably transported to the subsequent drainage components. The welded connection enhances the sealing performance and prevents water leakage.

[0030] As an embodiment of this utility model, the bottom end of the vertical pipe 301 is connected to the top surface of the horizontal pipe 302, and the two ends of the horizontal pipe 302 are respectively connected to one end of the two first connector bends 4. The two ends of the horizontal pipe 302 are connected to the first connector bends 4 to form a "vertical collection and horizontal delivery" water flow path, which expands the diversion range and ensures that the water in the middle section of the safety valve auxiliary pipe is discharged without dead corners. The horizontal pipe design makes the water evenly distributed to the drainage components on both sides, improving the drainage efficiency.

[0031] As an embodiment of this utility model, the anti-clogging filter 7 has a drain outlet and a water outlet on both sides of its outer wall. One end of the drain outlet is connected to the top of the second manual ball valve 10, and one end of the water outlet is connected to one end of the second connector bend 8. The drain outlet of the anti-clogging filter 7 can periodically discharge filtered impurities to avoid clogging the drainage channel; the water outlet delivers the filtered clean water to the second connector bend 8 to prevent impurities from entering the automatic drainer 9 and causing it to malfunction.

[0032] As an embodiment of this utility model, one end of the second connector bend 8 is connected to the top surface of the automatic drainer 9. The second connector bend 8 connects the anti-clogging filter 7 and the automatic drainer 9, and the pipe direction can be flexibly adjusted to adapt to different installation spaces. The bend design reduces water flow impact, allowing water to flow smoothly into the automatic drainer, ensuring that it accurately senses the water level and automatically drains water.

[0033] As an embodiment of this utility model, a second flange is further installed between the safety valve 1 and the safety valve auxiliary pipeline 2. The second flange connection between the safety valve 1 and the safety valve auxiliary pipeline 2 facilitates the disassembly and maintenance of both. When the pipeline or safety valve malfunctions, they can be quickly separated for repair. At the same time, the flange connection has strong sealing performance to prevent compressed air leakage.

[0034] As one embodiment of this utility model, the first manual ball valve 6 and the second manual ball valve 10 are located on the same axis, so that the water flows in a straight line in the pipe, reducing resistance and eddies and increasing the drainage speed.

[0035] Specifically, the working principle of this compressed air safety valve auxiliary pipeline drainage device is as follows: During use, the safety valve 1 is connected to the compressed air system through the first flange of the external pipeline 11. The water condensed in the auxiliary pipeline 2 at the bottom of the safety valve is collected at the bottom of the middle section under gravity, and flows into the horizontal pipe 302 through the vertical pipe 301 of the drainage pipe 3 (welded to the bottom of the auxiliary pipeline). The water is evenly distributed to the two first joint bends 4 at both ends of the horizontal pipe, forming two independent drainage pipelines. The water enters the first manual ball valve 6 through the connecting pipe 5 in sequence. After opening, it flows into the anti-clogging filter 7. After filtering impurities, it enters the automatic drainer 9 through the outlet and the second joint bend 8 (adjusting the pipeline direction), realizing automatic drainage. Finally, it is discharged through the second manual ball valve 10. The second flange between the safety valve and the auxiliary pipeline facilitates disassembly and maintenance. The coaxial arrangement of the first and second manual ball valves reduces water flow resistance. The two-line pipeline design ensures that the other line can still work normally when one filter is damaged. The whole system achieves zero air loss, continuous and stable drainage, ensuring compressed air quality and system safety.

Claims

1. A drainage device for an auxiliary pipeline of a compressed air safety valve, characterized in that, It includes a safety valve (1) and an external pipe (11). One end of the external pipe (11) is equipped with a first flange. The external pipe (11) is connected to one end of the safety valve (1) through the first flange. The bottom end of the safety valve (1) is connected to a safety valve auxiliary pipe (2). The bottom of the middle section of the safety valve auxiliary pipe (2) is connected to a drain pipe (3). Two of the drain pipes (3) are respectively connected to a first connector bend (4). The bottom ends of the two first connector bends (4) are respectively connected to a connecting pipe (5). The bottom ends of the two connecting pipes (5) are provided with a first manual ball valve (6), an anti-clogging filter (7), a second connector bend (8), an automatic drainer (9), and a second manual ball valve (10) in sequence from top to bottom.

2. The compressed air safety valve auxiliary pipeline drainage device according to claim 1, characterized in that, The drainage pipe (3) includes a vertical pipe (301) and a horizontal pipe (302), and the bottom surface of the safety valve auxiliary pipe (2) is welded to the top of the vertical pipe (301).

3. A compressed air safety valve auxiliary pipeline drainage device according to claim 2, characterized in that, The bottom end of the vertical pipe (301) is connected to the top surface of the horizontal pipe (302), and the two ends of the horizontal pipe (302) are respectively connected to one end of the two first joint bends (4).

4. A compressed air safety valve auxiliary pipeline drainage device according to claim 1, characterized in that, The anti-clogging filter (7) has a drain outlet and a water outlet on its outer walls. One end of the drain outlet is connected to the top of the second manual ball valve (10), and one end of the water outlet is connected to one end of the second connector bend (8).

5. A compressed air safety valve auxiliary pipeline drainage device according to claim 1, characterized in that, One end of the second connector bend (8) is connected to the top surface of the automatic drainer (9).

6. A compressed air safety valve auxiliary pipeline drainage device according to claim 1, characterized in that, A second flange is installed between the safety valve (1) and the safety valve auxiliary pipeline (2).

7. A compressed air safety valve auxiliary pipeline drainage device according to claim 1, characterized in that, The first manual ball valve (6) and the second manual ball valve (10) are on the same axis.

Citation Information

Patent Citations

  • Multichannel output compress air conduit zero -gas -consumption drainage device

    CN206555105U

  • Automatic drainage device for compressed air pipeline

    CN208935839U