Automatic opening and closing valve for ship air bottle
By introducing a timed residual water discharge automatic opening and closing valve into the ship's air cylinder system, the problem of moisture and impurities affecting the stable operation of the equipment has been solved, thereby improving safety and reliability, extending equipment life, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DAJIN HEAVY IND
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-10
AI Technical Summary
In existing ship air cylinder systems, moisture and impurities are mixed into the compressed air, affecting the stable operation and service life of the equipment, and the manual discharge valve poses a safety hazard.
The system employs a marine air cylinder timed residual drainage automatic opening and closing valve, including a 220V AC solenoid valve, a manual residual drainage shut-off valve, and a time relay. It automatically controls the opening and closing of the drainage pipeline, avoiding manual operation.
It improves the safety and reliability of equipment operation, extends the service life of equipment and pipelines, reduces maintenance costs, and eliminates the safety hazards of manual operation.
Smart Images

Figure CN224479524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of marine air cylinders, and in particular to an automatic on / off valve for timed residual water discharge from marine air cylinders. Background Technology
[0002] In most current ship air cylinder systems, although the vast majority of ships are equipped with air dryers, the equipment is often monolithic, and many shipboard devices use air directly from the air cylinders. This inevitably results in a lot of moisture and impurities being mixed into the compressed air, which can significantly affect the stable operation of the equipment, pipelines, and the service life of the equipment. Utility Model Content
[0003] The purpose of this application is to provide an automatic on / off valve for timed discharge of residual water from marine air cylinders, in order to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this application provides the following technical solution: a timed residual water discharge automatic opening and closing valve for marine air cylinders, including a 220V AC solenoid valve, wherein the 220V AC solenoid valve is fixedly installed on the drain pipe connected to the bottom of the air cylinder for controlling the opening and closing of the drain pipe.
[0005] A manual residual drain stop valve is fixedly installed on the drain pipe connected to the bottom of the air cylinder to open and close the drain pipe.
[0006] A time relay is electrically connected to the 220V AC solenoid valve and is fixed inside the air compressor control box of the air cylinder.
[0007] Preferably, a first air cylinder outlet shut-off check valve and a second air cylinder outlet shut-off check valve are fixedly installed on the air cylinder.
[0008] Preferably, a safety valve is fixedly installed on the air cylinder.
[0009] Preferably, the time relay is an Omron DH48S-S time relay.
[0010] Preferably, the 220V AC solenoid valve and the time relay are electrically connected to a power supply.
[0011] In summary, the technical effects and advantages of this utility model are as follows:
[0012] In this utility model, the adoption of this new timed residual drainage automatic opening and closing valve firstly improves the safety and reliability of equipment operation, and at the same time greatly extends the service life of equipment and pipelines, significantly reducing the maintenance costs of shipping companies during use. Moreover, most existing ships currently use manual discharge valves, which pose significant safety hazards due to human operation. This design avoids human operation. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the installation structure of the automatic opening and closing valve for timed residual water discharge from marine air cylinders in an embodiment of this application.
[0015] Figure 2 This is a wiring diagram of the automatic on / off valve for timed residual water discharge from marine air cylinders in an embodiment of this application.
[0016] Figure 3 This is a schematic diagram of the appearance of the time relay for the automatic opening and closing valve of the marine air cylinder timed residual drainage in the embodiments of this application;
[0017] Figure 4 This is a schematic diagram of the time relay wiring port of the automatic opening and closing valve for timed residual water discharge from marine air cylinders in an embodiment of this application.
[0018] In the diagram: 1. First air cylinder outlet check valve; 2. Second air cylinder outlet check valve; 3. 220V AC solenoid valve; 4. Manual residual drain valve; 5. Safety valve. Detailed Implementation
[0019] 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.
[0020] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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 disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.
[0022] In this document, the term "comprising" is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] Example: Reference Figure 1-4 The marine air cylinder timed residual drainage automatic opening and closing valve shown includes a 220V AC solenoid valve 3, which is fixedly installed on the drainage pipe connected to the bottom of the air cylinder to control the opening and closing of the drainage pipe.
[0024] Manual residual drain stop valve 4, which is fixedly installed on the drain pipe connected to the bottom of the air cylinder for switching the drain pipe on and off.
[0025] A time relay is electrically connected to the 220V AC solenoid valve. The time relay is fixed inside the air compressor control box of the air cylinder. The time relay is an Omron DH48S-S time relay.
[0026] Figure 3 It is an Omron DH48S-S time relay, and the LED digital display shows the countdown time.
[0027] T1 (cycle time between two actions): The two mechanical display windows from the left in the picture are the time settings and adjustment keys for T1.
[0028] Setting method: Press the "+" key once to increment the number by one, and press the "-" key once to decrement the number by one. The third mechanical display window, T1, sets the time unit. S represents the time unit as seconds, M represents the time unit as minutes, and H represents the time unit as hours.
[0029] Setting Example 1: 1 0 S represents T1 (cycle time) as 10 seconds, which means that the contacts of the time relay will activate 10 seconds after being energized.
[0030] Setting Example 2: 8 0 M represents T1 (cycle time) as 80 minutes, which means that the contacts of the time relay will activate 80 minutes after being energized.
[0031] Setting Example 3: 1 2 H represents T1 (cycle time) as 12 hours, which means that the contacts of the time relay will activate 12 hours after being energized.
[0032] T2 (duration of valve opening / closing action): The fourth and fifth mechanical display windows from the left in the picture are the time settings and adjustment keys for T2. The sixth mechanical display window is the unit of time for T2. The button and setting method for T2 are the same as for T1.
[0033] The complete setup example for T1 and T2 is as follows:
[0034] 2 4 H 0 1 M This setting means that after the time relay is energized for 24 hours (T1), the residual drain valve will be energized and opened for 1 minute (T2). After 1 minute, the residual drain valve will be de-energized and closed, and T1 will reset to 24 hours. The above action will then be repeated in a loop.
[0035] Example 2 of complete T1 and T2 settings is as follows:
[0036] 7 2 H 3 0 S This setting means that after the time relay is energized for 72 (T1) hours, the residual drain valve will be energized and opened for 30 (T2) seconds. After 30 seconds, the residual drain valve will be de-energized and closed, and T1 will reset to 72 hours. The above action will then be repeated in a loop.
[0037] Figure 4In the wiring diagram, 2-7 is connected to the power supply, 8-6 is a normally open contact, 8-5 is a normally closed contact, 1-3 is for reset, 1-4 is for pause, and 7-8 requires a short-circuit connection. Terminals 2 and 7 are connected to a 220V AC power input. This time relay has two pairs of contacts. The residual discharge valve is connected to terminals 8 and 6. These two terminals are normally open contacts. After the set time, the contacts close, and the residual discharge valve is energized and opens. A short-circuit connection is needed between terminals 7 and 8. By adopting this new type of timed residual discharge automatic valve, the safety and reliability of the equipment operation are improved, the service life of the equipment and pipelines is greatly extended, and the maintenance costs of the shipping company during use are greatly reduced. Moreover, most existing ships currently use manual discharge valves, which pose significant safety hazards due to human operation. This design avoids human operation.
[0038] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 timed residual water discharge and automatic opening / closing valve for marine air cylinders, characterized in that: include: 220V AC solenoid valve (3), the 220V AC solenoid valve (3) is fixedly installed on the drain pipe connected to the bottom of the air bottle to control the opening and closing of the drain pipe; Manual residual drain stop valve (4), which is fixedly installed on the drain pipe connected to the bottom of the air bottle for switching the drain pipe on and off; A time relay is electrically connected to the 220V AC solenoid valve and is fixed inside the air compressor control box of the air cylinder.
2. The automatic on / off valve for timed residual water discharge from marine air cylinders according to claim 1, characterized in that: The air cylinder is fixedly equipped with a first air cylinder outlet shut-off check valve (1) and a second air cylinder outlet shut-off check valve (2).
3. The automatic on / off valve for timed residual water discharge from marine air cylinders according to claim 1, characterized in that: A safety valve (5) is fixedly installed on the air cylinder.
4. The automatic on / off valve for timed residual water discharge from marine air cylinders according to claim 1, characterized in that: The time relay used is an Omron DH48S-S time relay.
5. The automatic on / off valve for timed residual water discharge from marine air cylinders according to claim 1, characterized in that: The 220V AC solenoid valve (3) and the time relay are electrically connected to the power supply.