A device for automatic shut-off of liquid cargo tank outlet line

Abstract

The utility model relates to a kind of device of automatic cut-off of tank outlet pipeline in ship technology field, comprising: to the equipment user, and the outlet pipe that is connected with tank, outlet pipe is equipped with quick closing valve;Compressed air bottle, it is equipped with compressed air delivery pipe, the air outlet end of compressed air bottle is connected with quick closing valve by compressed air delivery pipe to control the opening and closing state of quick closing valve;Liquid-collecting tray, it is used to gather the liquid leaked from tank;Liquid level monitoring component, it is installed in liquid-collecting tray and is used to monitor the water level of liquid-collecting tray;Opening and closing solenoid valve.This scheme can realize the accurate identification of tank leakage condition, and when tank leaks, the corresponding valve of tank outlet pipe can be automatically closed in time, to cut off the outlet pipeline of tank, so as to avoid the further leakage of tank.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, specifically, it is a device for automatically cutting off the outlet pipeline of a liquid tank. Background Technology

[0002] There is typically no fixed solution for leaks in shipboard liquid tanks. Generally, a low-level alarm is triggered by the tank's level switch to alert the crew to check for any abnormalities. If there are no leaks or other abnormalities in the tank's piping and valves, the low-level alarm may simply be a normal occurrence during normal use. Furthermore, the low-level alarm is only triggered when the tank level drops to a certain point. Before the alarm is triggered, the tank will continue to leak, and there is a time lag between receiving the alarm and the crew closing the tank's outlet valve. During this time, the tank remains in a state of continuous leakage. Therefore, relying solely on the tank level switch as a solution for liquid tank leaks has the following shortcomings:

[0003] 1. It cannot effectively distinguish between two situations: a leak in the liquid tank and normal use of the liquid tank;

[0004] 2. If the liquid tank outlet pipeline cannot be shut off in time, the liquid tank will continue to leak before the low liquid level alarm is triggered and before the crew performs the shutdown operation.

[0005] The severity of a liquid tank leak typically depends on the medium stored in the tank and its location. If the tank is located in an area frequently visited by personnel, and contains corrosive or other harmful substances, a leak that is not handled promptly can lead to extremely serious consequences. Existing response measures are insufficient to address and resolve liquid tank leaks in a timely and effective manner. Utility Model Content

[0006] The purpose of this invention is to provide a device for automatically cutting off the outlet pipeline of a liquid tank, so as to solve the problems existing in the prior art.

[0007] The purpose of this utility model is achieved as follows: a device for automatically cutting off the outlet pipeline of a liquid tank, comprising:

[0008] An outlet pipe leading to the equipment user and connected to the liquid tank, the outlet pipe being equipped with a quick-closing valve;

[0009] A compressed air cylinder is equipped with a compressed air delivery pipe. The outlet of the compressed air cylinder is connected to a quick-closing valve through the compressed air delivery pipe to control the opening and closing state of the quick-closing valve.

[0010] A collection tray is used to collect liquid leaking from a liquid tank.

[0011] A liquid level monitoring component, which is installed in the liquid collection tray and used to monitor the water level in the liquid collection tray;

[0012] Opening and closing the solenoid valve;

[0013] The solenoid valve is located in the outlet pipe and is closed when the liquid level monitoring component detects an increase in the liquid level in the collection pan.

[0014] Alternatively, the solenoid valve is located in the compressed air delivery pipe. The solenoid valve is in the open state when the liquid level monitoring component detects that the liquid level in the collection tray has risen. The outlet of the compressed air bottle is connected to the quick-closing valve through the compressed air delivery pipe to drive the quick-closing valve to the closed state.

[0015] Furthermore, the liquid collection tray is located below the liquid tank.

[0016] Furthermore, in the case where an on / off solenoid valve is installed in the outlet pipe, the quick-closing valve and the on / off solenoid valve are arranged sequentially along the flow direction of the outlet pipe.

[0017] Furthermore, the upper side of the liquid collection tray is provided with an opening, and it is located directly below the liquid tank.

[0018] Furthermore, in the case where an opening and closing solenoid valve is installed in the outlet pipe, the compressed air delivery pipe is equipped with a manual valve.

[0019] Furthermore, the liquid level monitoring component is configured as a liquid level switch.

[0020] Furthermore, the liquid level switch is electrically connected to the electronic control unit that controls the opening and closing of the solenoid valve.

[0021] The beneficial effects of this utility model are as follows:

[0022] It can accurately identify liquid tank leaks;

[0023] Furthermore, when a leak occurs in the liquid tank, the corresponding valve on the liquid tank's outlet pipe can be automatically closed in a timely manner to cut off the liquid tank's outlet pipeline, thereby preventing further leakage from the liquid tank. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of Embodiment 1 of the present invention.

[0025] Figure 2 This is a schematic diagram of Embodiment 2 of this utility model.

[0026] Explanation of reference numerals in the attached diagram: 1-Compressed air cylinder; 2-Compressed air delivery pipe; 3-Quick-closing valve; 4-Liquid tank; 5-Suction port; 6-Solenoid valve; 7-Collection tray; 8-Level switch; 9-Manual valve; 10-Outlet pipe. Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figure 1-2 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] refer to Figure 1-2 As shown, a device for automatically shutting off the outlet pipeline of a liquid tank is proposed. The device includes the following parts:

[0029] An outlet pipe 10, which leads to the equipment user and is connected to the liquid tank 4, is equipped with a quick-closing valve 3 (pneumatic valve), and the suction port 5 of the outlet pipe 10 is located inside the liquid tank 4.

[0030] Compressed air cylinder 1 is equipped with compressed air delivery pipe 2. The outlet of compressed air cylinder 1 is connected to quick-closing valve 3 through compressed air delivery pipe 2 to control the opening and closing state of quick-closing valve 3.

[0031] The liquid collection tray 7 is used to collect the liquid leaking from the liquid tank 4. The liquid collection tray 7 is located below the liquid tank 4, and the upper side of the liquid collection tray 7 is provided with an opening and is located directly below the liquid tank 4.

[0032] A liquid level monitoring component is installed in the liquid collection tray 7 and is used to monitor the water level in the liquid collection tray 7. The liquid level monitoring component can be a liquid level switch 8 (or other type of liquid level monitoring component). The liquid level switch 8 is electrically connected to the electrical control unit of the solenoid valve 6.

[0033] 6. Open and close the solenoid valve.

[0034] Regarding the arrangement of the solenoid valve 6, there are two optional schemes, as detailed in Embodiment 1 and Embodiment 2 below.

[0035] Example 1

[0036] like Figure 1 As shown, the solenoid valve 6 is located in the outlet pipe 10. The solenoid valve 6 is closed when the liquid level monitoring component detects that the liquid level in the collection tray 7 has risen.

[0037] In the case where the solenoid valve 6 is installed in the outlet pipe 10, the quick-closing valve 3 and the solenoid valve 6 are arranged in sequence along the flow direction of the outlet pipe 10; the compressed air delivery pipe 2 is equipped with a manual valve 9, which is opened or closed when the compressed air delivery pipe 2 needs to be opened or closed.

[0038] Example 1 is Scheme 1, and its implementation principle is as follows:

[0039] When there is no leakage in the liquid tank 4, no liquid will appear in the collection tray 7, the liquid level switch 8 will not output a signal, the solenoid valve 6 will be normally open, and it will not affect the normal operation of the equipment corresponding to the liquid tank 4 by the user using the liquid in the liquid tank 4 through the suction port 5.

[0040] When the liquid tank 4 leaks, the liquid level in the collection pan 7 will rise. After the liquid level switch 8 detects the liquid level in the collection pan 7, it outputs a signal to the solenoid valve 6 (the alarm liquid level can be set according to the actual situation and will not affect the use of the liquid tank 4 itself). After receiving the signal, the electronic control unit of the solenoid valve 6 automatically closes the solenoid valve 6, thereby automatically cutting off the outlet pipe 10 of the liquid tank 4 to prevent further leakage of the liquid tank 4.

[0041] Example 2

[0042] like Figure 2 As shown, the solenoid valve 6 is located in the compressed air delivery pipe 2. The solenoid valve 6 is in the open state when the liquid level monitoring component detects that the liquid level in the collection tray 7 has risen. The air outlet of the compressed air bottle 1 is connected to the quick-closing valve 3 through the compressed air delivery pipe 2 to drive the quick-closing valve 3 to be in the closed state.

[0043] Example 2 is Scheme 2, and its implementation principle is as follows:

[0044] When there is no leakage in the liquid tank 4, no liquid will appear in the collection tray 7, the liquid level switch 8 will not output a signal, the solenoid valve 6 is located on the compressed air delivery pipe 2 and is in a normally closed state, which does not affect the equipment user corresponding to the liquid tank 4 from using the liquid in the liquid tank 4 through the suction port 5 for normal operation.

[0045] When the liquid tank 4 leaks, the liquid level in the collection tray 7 will rise. After the liquid level switch 8 detects the liquid level in the collection tray 7, it outputs a signal to the solenoid valve 6 (the alarm liquid level can be set according to the actual situation and will not affect the use of the liquid tank 4 itself). After receiving the signal, the electronic control unit of the solenoid valve 6 automatically opens the solenoid valve 6, and the compressed air cylinder 1 supplies air to the quick-closing valve 3 to close the quick-closing valve 3, thereby realizing the automatic cut-off of the outlet pipe 10 of the liquid tank 4 and preventing further leakage of the liquid tank 4.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. In this utility model, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, integral molding connection, mechanical connection, or indirect connection through intermediate connecting parts. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for automatic shut-off of a liquid cargo tank outlet line, characterized in that include: An outlet pipe (10) leading to the equipment user and connected to the liquid tank (4) is provided with a quick-closing valve (3); A compressed air cylinder (1) is equipped with a compressed air delivery pipe (2). The outlet of the compressed air cylinder (1) is connected to a quick-closing valve (3) through the compressed air delivery pipe (2) to control the opening and closing state of the quick-closing valve (3). A collection tray (7) is used to collect liquid leaking from the liquid tank (4); A liquid level monitoring component is installed in the liquid collection tray (7) and is used to monitor the water level in the liquid collection tray (7); Open and close the solenoid valve (6); The solenoid valve (6) is located in the outlet pipe (10). The solenoid valve (6) is closed when the liquid level monitoring component detects that the liquid level in the collection tray (7) has increased. Alternatively, the solenoid valve (6) is located in the compressed air delivery pipe (2). The solenoid valve (6) is in the open state when the liquid level monitoring component detects that the liquid level in the collection tray (7) has increased. The outlet of the compressed air bottle (1) is connected to the quick-closing valve (3) through the compressed air delivery pipe (2) to drive the quick-closing valve (3) to be in the closed state.

2. A device for automatic shut-off of a tank outlet line according to claim 1, characterised in that The liquid collection tray (7) is located below the liquid tank (4).

3. The device for automatically cutting off the outlet pipeline of a liquid tank according to claim 1, characterized in that, In the case where a solenoid valve (6) is installed in the outlet pipe (10), the quick-closing valve (3) and the solenoid valve (6) are arranged sequentially along the flow direction of the outlet pipe (10).

4. The device for automatically cutting off the outlet pipeline of a liquid tank according to claim 2, characterized in that, The upper side of the liquid collection tray (7) is set with an opening and is located directly below the liquid tank (4).

5. The device for automatically cutting off the outlet pipeline of a liquid tank according to claim 3, characterized in that, In the case where an opening and closing solenoid valve (6) is installed in the outlet pipe (10), the compressed air delivery pipe (2) is equipped with a manual valve (9).

6. A device for automatically cutting off the outlet pipeline of a liquid tank according to any one of claims 1-5, characterized in that, The liquid level monitoring component is configured as a liquid level switch (8).

7. The device for automatically cutting off the outlet pipeline of a liquid tank according to claim 6, characterized in that, The liquid level switch (8) is electrically connected to the control unit of the solenoid valve (6).

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