Pneumatic fast closing control system for pneumatic louvers and fire damper

Abstract

The present application relates to a pneumatic fast closing control system of pneumatic shutter and fire damper, comprising a gas cylinder, a main pipeline connected with the gas cylinder, at least two branch pipelines connected with the main pipeline, each operation valve arranged on each branch pipeline, a whole-ship compressed air source, a whole-ship compressed air pipeline, a check valve and a normally open valve; the operation valve is divided into a first operation valve and a pneumatic fast closing valve; the first operation valve is arranged on the first branch pipeline and is used for controlling the opening and closing of the shutter and the fire damper; the main pipeline is divided into at least two sections of main pipeline by the connection points of the at least two branch pipelines; the whole-ship compressed air source supplies gas to the first operation valve on the first branch pipeline through the whole-ship compressed air pipeline and the first section of main pipeline in sequence; the normally open valve is arranged on the first section of main pipeline; the check valve is arranged on the second section of main pipeline, so that the remaining branch pipelines are in an isolated state with the whole-ship compressed air pipeline, the first section of main pipeline and the first branch pipeline. It can improve the safety and reliability of the control system.

Description

Technical Field

[0001] This invention belongs to the field of marine technology, specifically relating to a pneumatic quick-closing control system for pneumatic louvers and fireproof windbreaks. Background Technology

[0002] In ship control systems, pneumatic quick-closing valves close when air is supplied, while louvers and fire dampers close when air is lost. Currently, the valves on the existing pneumatic quick-closing valves, as well as those on the piping of louvers and fire dampers, are all supplied with gas from cylinders.

[0003] In the event of an emergency such as a fire in the engine room, all fuel lines in the engine room must be shut off quickly to prevent the fire from spreading. This means that the pneumatic quick-closing valves, louvers, and fire dampers must be closed.

[0004] In the event of a fire in the cabin that causes the control pipes of the louvers and fire dampers to fail, the louvers and fire dampers can close automatically. At the same time, they can also be shut off manually by cutting off the control air lines to achieve emergency shut-off of the louvers and fire dampers.

[0005] However, the problem is that if a fire or other reasons cause the control air lines corresponding to the louvers and fireproof dampers to lose air, the compressed air in the gas cylinder will leak. As a result, when the pneumatic quick-closing valve needs to be closed, the gas cylinder cannot supply air to the pneumatic quick-closing valve, thus preventing the pneumatic quick-closing valve from closing and creating a safety hazard. Summary of the Invention

[0006] The purpose of this invention is to provide a pneumatic quick-closing control system for pneumatic louvers and fireproof air dampers, which can improve the safety and reliability of the control system.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A pneumatic quick-closing control system for pneumatic louvers and fireproof dampers includes a gas cylinder, a main pipeline connected to the gas cylinder, at least two branch pipelines connected to the main pipeline, various operating valves installed on each of the branch pipelines, a ship-wide compressed air source, a ship-wide compressed air pipeline, a check valve, and a normally open valve; the operating valves are divided into a first operating valve and a pneumatic quick-closing valve.

[0009] The first operating valve is located on the first branch pipeline and is used to control the opening and closing of the louvers and fireproof dampers; the main pipeline is divided into at least two main pipeline sections by the connection point of at least two branch pipelines; the ship's compressed air source supplies air to the first operating valve on the first branch pipeline in sequence through the ship's compressed air pipeline and the first main pipeline section.

[0010] The normally open valve is installed on the first main pipeline; the check valve is installed on the second main pipeline and is in the closed state, so that the remaining branch pipelines are isolated from the ship's compressed air pipeline, the first main pipeline and the first branch pipeline.

[0011] As a preferred embodiment, the first operating valve is a three-way valve.

[0012] As a preferred embodiment, the pneumatic quick-closing valve is divided into a second operating valve, a third operating valve, a fourth operating valve, a fifth operating valve, and a sixth operating valve.

[0013] As a preferred embodiment, the second operating valve, the third operating valve, the fourth operating valve, the fifth operating valve, and the sixth operating valve are all three-way valves.

[0014] As a preferred option, the louvers are divided into chimney ventilation louvers and fan room ventilation louvers.

[0015] As a preferred embodiment, the gas cylinder is also equipped with a low-pressure alarm.

[0016] As a preferred embodiment, the main pipeline is also connected to a backup branch pipeline, and a backup valve is installed on the backup branch pipeline.

[0017] As a preferred embodiment, the system also includes a quick-closing valve control box, which is located at the fire control station.

[0018] As a preferred option, the opening or closing of the first operating valve can be controlled by a quick-closing valve control box.

[0019] The beneficial effect of the pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers of the present invention is that, in the event of a fire, due to the presence of the check valve, air leakage on the pipelines corresponding to the first operating valve will not affect the gas cylinder. The gas in the cylinder will normally flow through the main pipeline to the various branch pipelines, thereby closing each pneumatic quick-closing valve. This improves the safety and reliability of the control system. Attached Figure Description

[0020] Figure 1 This is a partial system diagram of the pneumatic quick-closing control system for the pneumatic louvers and fireproof air dampers according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A magnified view of a portion at point A.

[0022] The component names and labels in the diagram are as follows:

[0023] Gas cylinder (20), check valve (30), normally open valve (40), first branch line (51), spare branch line (57), ship-wide compressed air line (60), main line (70), first section of main line (71), second section of main line (72), first operating valve (I), second operating valve (II), third operating valve (III), fourth operating valve (IV), fifth operating valve (V), sixth operating valve (VI). Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0025] like Figure 1 and Figure 2 As shown, this embodiment discloses a pneumatic quick-closing control system for pneumatic louvers and fireproof dampers. The pneumatic quick-closing control system for pneumatic louvers and fireproof dampers includes a gas cylinder 20, a main pipeline 70 connected to the gas cylinder 20, at least two branch pipelines connected to the main pipeline 70, various operating valves installed on each branch pipeline, a ship-wide compressed air source, a ship-wide compressed air pipeline 60, a check valve 30, and a normally open valve 40; the operating valves are divided into a first operating valve I and a pneumatic quick-closing valve.

[0026] The first operating valve I is installed on the first branch pipeline 51 and is used to control the opening and closing of the louvers and fireproof dampers; the main pipeline 70 is divided into at least two main pipeline sections by the connection point of at least two branch pipelines; the ship's compressed air source supplies air to the first operating valve I on the first branch pipeline 51 through the ship's compressed air pipeline 60 and the first main pipeline section 71 in sequence.

[0027] Normally open valve 40 is installed on the first main pipeline 71; check valve 30 is installed on the second main pipeline 72 and is in the closed state, so that the remaining branch pipelines are isolated from the ship's compressed air pipeline 60, the first main pipeline 71, and the first branch pipeline 51. The ship's compressed air pipeline 60, the first main pipeline 71, and the first branch pipeline 51 are the pipelines corresponding to the first operating valve I or the pipelines corresponding to the louvers and fireproof dampers.

[0028] As a preferred option, the first operating valve I is a three-way valve.

[0029] As a preferred option, the pneumatic quick-closing valve is divided into a second operating valve II, a third operating valve III, a fourth operating valve IV, a fifth operating valve V, and a sixth operating valve VI.

[0030] As a preferred embodiment, the second operating valve II, the third operating valve III, the fourth operating valve IV, the fifth operating valve V, and the sixth operating valve VI are all three-way valves.

[0031] As a preferred option, louvers are divided into chimney ventilation louvers and fan room ventilation louvers.

[0032] As a preferred option, gas cylinder 20 is also equipped with a low-pressure alarm.

[0033] As a preferred embodiment, the main pipeline 70 is also connected to a backup branch pipeline 57, which is equipped with a backup valve. Specifically, there are two backup branch pipelines 57.

[0034] As a preferred option, a quick-closing valve control box is also included, which is located in the fire control station.

[0035] As a preferred option, the opening or closing of the first operating valve I can be controlled by the quick-closing valve control box.

[0036] Under normal circumstances, the pneumatic quick-closing valves on each branch pipeline are opened, that is, the second operating valve II, the third operating valve III, the fourth operating valve IV, the fifth operating valve V, and the sixth operating valve VI are opened, specifically, the "12" terminals of each pneumatic quick-closing valve are connected. The ship's compressed air source supplies air to the first operating valve I on the first branch pipeline 51 through the ship's compressed air pipeline 60 and the first main pipeline 71 in sequence. The "12" terminal of the first operating valve I is connected and is in the open state.

[0037] In the event of a fire, the "32" terminal of the first operating valve I can be manually activated to release the air supplied by the original compressed air source for the entire ship in the downward pipeline of the first operating valve I, causing the louvers and fire dampers to close automatically. Alternatively, if the fire damages the pipeline from the first operating valve I to the louvers and fire dampers, the damaged pipeline will release the air supplied by the original compressed air source for the entire ship in the downward pipeline of the first operating valve I, causing the louvers and fire dampers to close automatically. Simultaneously, due to the disconnection function of the check valve 30, the gas cylinder 20 will not be affected by leaks in the corresponding pipelines of the louvers and fire dampers. The gas in the cylinder 20 will normally flow through the main pipeline 70 to each branch pipeline, causing each pneumatic quick-closing valve to close.

[0038] The pneumatic quick-closing control system of the pneumatic louvers and fireproof air dampers of this invention can ensure the cut-off of all fuel supply lines in the engine room in case of fire or other emergencies, so as to prevent the spread of fire and has high safety and reliability.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A pneumatic quick-closing control system for pneumatic louvers and fireproof air dampers, characterized in that, Includes a gas cylinder (20), a main pipeline (70) connected to the gas cylinder (20), at least two branch pipelines connected to the main pipeline (70), various operating valves installed on each of the branch pipelines, a ship-wide compressed air source, a ship-wide compressed air pipeline (60), a check valve (30), and a normally open valve (40); the operating valves are divided into a first operating valve (I) and a pneumatic quick-closing valve; The first operating valve (I) is installed on the first branch pipeline (51) and is used to control the opening and closing of the louvers and fireproof dampers; the main pipeline (70) is divided into at least two main pipeline sections by the connection points of at least two branch pipelines; the ship's compressed air source supplies air to the first operating valve (I) on the first branch pipeline (51) in sequence through the ship's compressed air pipeline (60) and the first main pipeline section (71); The normally open valve (40) is installed on the first section of the main pipeline (71); the check valve (30) is installed on the second section of the main pipeline (72) and is in a closed state, so that the remaining branch pipelines are isolated from the ship's compressed air pipeline (60), the first section of the main pipeline (71) and the first branch pipeline (51). The first operating valve (I) is a three-way valve; The pneumatic quick-closing valve is divided into a second operating valve (II), a third operating valve (III), a fourth operating valve (IV), a fifth operating valve (V), and a sixth operating valve (VI).

2. The pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers according to claim 1, characterized in that: The second operating valve (II), the third operating valve (III), the fourth operating valve (IV), the fifth operating valve (V), and the sixth operating valve (VI) are all three-way valves.

3. The pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers according to claim 1, characterized in that: The louvers are divided into chimney ventilation louvers and fan room ventilation louvers.

4. The pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers according to claim 1, characterized in that: The gas cylinder (20) is also equipped with a low-pressure alarm.

5. The pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers according to claim 1, characterized in that: The main pipeline (70) is also connected to a backup branch pipeline (57), and a backup valve is provided on the backup branch pipeline (57).

6. The pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers according to claim 1, characterized in that: It also includes a quick-closing valve control box, which is located in the fire control station.

7. The pneumatic quick-closing control system for the pneumatic louvers and fireproof dampers according to claim 6, characterized in that: The opening or closing of the first operating valve (I) can be controlled by the quick-closing valve control box.

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