CN112516489A - Marine closed high-pressure water mist spraying system experimental device - Google Patents
Marine closed high-pressure water mist spraying system experimental device Download PDFInfo
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- CN112516489A CN112516489A CN202011343108.2A CN202011343108A CN112516489A CN 112516489 A CN112516489 A CN 112516489A CN 202011343108 A CN202011343108 A CN 202011343108A CN 112516489 A CN112516489 A CN 112516489A
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- China
- Prior art keywords
- pressure
- water mist
- spraying system
- closed
- mist spraying
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
- A62C3/10—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in ships
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
Abstract
The invention discloses an experimental device of a closed high-pressure water mist spraying system for a ship, which comprises: the joint, the high-pressure hose, the pressure gauge, the control valve and the open type spray head are connected with the closed type high-pressure water mist spraying system, one end of the joint is connected with the ventilation valve of the closed type high-pressure water mist spraying system, and the other end of the joint is sequentially connected with the high-pressure hose, the pressure gauge, the control valve and the open type spray head. The invention has the beneficial effects that: the principle of the closed high-pressure water mist spraying system is taken as a starting point, and the closed high-pressure water mist spraying system has the advantages of simplicity, practicability, convenience in storage, easiness in installation and maintenance and the like, and has better use and popularization values.
Description
Technical Field
The invention belongs to the technical field of ship fire fighting, and particularly relates to an experimental device of a ship closed high-pressure water mist spraying system, which is suitable for closed high-pressure water mist spraying systems on passenger ships.
Background
Ship fire protection is an important task for ship safety management. Fire safety must be guaranteed, whether before handing over the ship or after handing over the ship operation, it is essential that the fire control system regularly carries out inspection experiments. At present, the requirement on fire protection in the field of ships, particularly passenger ships, is higher and higher, and high-pressure water mist spraying fire extinguishing systems are mostly adopted in some special places, particularly in upper building areas. The high pressure water mist fire extinguishing system utilizes the pressure water to form fine water mist for fire extinguishing after flowing through the special nozzle, the average diameter of the fine water mist droplets is between 50 mu m and 200 mu m, the fine water mist droplets are quickly vaporized after meeting the high temperature of flame, and the temperature is reduced and the air is isolated to inhibit the flame. The high-pressure water mist fire extinguishing system has small influence on the environment, quick response, safety and reliability, and can protect a plurality of places in a subarea manner.
The marine water mist spraying system is divided into an open type water mist spraying system and a closed type water mist spraying system, and the open type water mist spraying system and the closed type water mist spraying system have different high-pressure water mist spraying system principles: the first, spray head type, the closed spray head regards its temperature sensing element as the water mist spray head which starts the part, it is a kind of normal close spray head, the temperature sensing of the spray head, locking device will drop only under the predetermined temperature environment, in order to open the spray head; the open type spray head is not provided with a temperature sensing and locking device and is in a normally open state. Secondly, the action mode is that the open system normally has no water in the system pipeline, when a fire disaster happens, the fire detector sends out a fire disaster signal and feeds the fire disaster signal back to the control system, and the system starts the high-pressure pump and the corresponding zone control valve group to spray water mist to suppress the fire disaster; the closed system pipeline is filled with water with certain pressure, the whole pipeline is a closed pipeline system, when a fire disaster happens, the warm glass ball on the nozzle of the closed spray head is heated and burst, the high-pressure pump is automatically started after receiving a signal sent by the flow switch, and the high-pressure water passing through the spray head is atomized and then released. The closed system only releases the spray head in the ignition area, namely the spray head which is heated and opened, and does not release other areas.
The multipurpose open type spraying system for the ship cabin area can be used for carrying out experiments by adopting a compressed air simulation method. Fig. 1 shows a closed high-pressure water mist spraying system, which comprises a water source, a high-pressure pump, a control valve, a pressure gauge, a pressure water tank, a closed water mist nozzle, a vent valve, a water supply pipeline and the like. In order to ensure that the spray head can release water mist immediately after being heated, the water in the pressure water tank is always kept under pressure. Because the closed system pipeline is filled with water with certain pressure all the time, the experiment can not be carried out by a method of compressed air simulation. The temperature sensing glass ball is limited by the environment of the arrangement place, and the limitation that the test cannot be repeated after the temperature sensing glass ball of the nozzle is damaged is considered. The method of simulating fire by the drawing nozzle is also not suitable for practical use.
The closed spraying system is more and more widely applied in the building area of the ship, but the method using the compressed air simulation experiment can not meet the requirements of the current closed spraying system of high-pressure water mist. International maritime organization IMO requires that a regional water mist spraying system to be built needs to perform each protection subarea every year, for example, flow pressure tests of nearly 50 subareas of a passenger ship, so as to check possible blockage and deterioration conditions of a discharge pipeline. Therefore, a simple and practical experimental device is very necessary to be developed for a closed system, and has important value.
Disclosure of Invention
In view of the above problems, the present invention provides a simple and practical device for a closed high-pressure water mist spraying system for a ship.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a marine closed high pressure water smoke spraying system experimental apparatus, includes: the high-pressure spray system comprises a joint, a high-pressure hose, a pressure gauge, a control valve and an open type spray head, wherein one end of the joint is connected with a ventilation valve of the closed type high-pressure spray system, and the other end of the joint is sequentially connected with the high-pressure hose, the pressure gauge, the control valve and the open type spray head.
The invention has the beneficial effects that: the principle of the closed high-pressure water mist spraying system is taken as a starting point, and the closed high-pressure water mist spraying system has the advantages of simplicity, practicability, convenience in storage, easiness in installation and maintenance and the like, and has better use and popularization values.
Drawings
FIG. 1 is a schematic diagram of a closed high pressure water mist spray system of the prior art;
FIG. 2 is a schematic diagram of an experimental device of the marine closed high-pressure water mist spraying system.
In the figure:
1. joint
2. High-pressure hose
3. Control valve
4. Pressure gauge
5. Open type spray head
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
the closed system of the invention provides pressure by the high-pressure pump, pressurizes water in the pressure cabinet and the system pipeline, and releases atomized water drops after reaching the working pressure of the spray head. When the pressure is verified to meet the requirement, the spray head is intact, and the system can be considered to be qualified.
When the system is injected with water for the first time, in order to discharge the gas in the pipeline, the highest end and the farthest end of each subarea are respectively provided with a ventilation valve for discharging the gas. Because the system is closed, the pressure at the vent valve is consistent with the pressure of the spray head. A bursting opening is searched from the side of the vent valve, the pressure at the vent valve obtained through actual measurement can be regarded as the actual working pressure of the spray head, and high-pressure water mist can be sprayed out for fire extinguishment after a glass ball of the spray head is heated and burst in a fire as long as the pressure is ensured. Therefore, the high-pressure pump set and the water supply pipeline can be considered to have no problem when the pressure in front of the nozzle reaches the release requirement in the experiment, and the system has no problem.
The invention relates to a temporary open system which is formed by connecting a hose with a nozzle with an outlet of a vent valve of a closed high-pressure water mist system through a connecting valve and is used for testing the pressure of the system during working. Therefore, the sprayer can be prevented from being damaged, whether the system discharge pipeline is blocked or not is verified, and whether the system pressure meets the requirement of sprayer release or not is verified.
Examples
As shown in figure 2, the experimental device of the closed high-pressure water mist spraying system for the ship comprises a connector 1, a high-pressure hose 2, a control valve 3, a pressure gauge 4 and an open type nozzle 5 which are sequentially connected, wherein the control valve 3 is a ball valve or a stop valve. The joint 1 is connected with a vent valve of the closed high-pressure water mist spraying system, pressure experiments are carried out one by one after all parts are connected, and corresponding pressure values are recorded.
Neglecting the pressure loss of the vent valve and the hose, the pressure measured by a pressure gauge in the device is the working pressure of the closed spray head required by the system.
Before the experiment, the novel experimental device is connected with a closed high-pressure water mist spraying system. The open type spray head is placed at a proper position, so that water drainage is facilitated. After the preparation is finished, the high-pressure pump and the system control valve are manually opened, the operation is carried out for 2 minutes, the reading of the pressure gauge is recorded and compared with the pressure required by the system, and the condition that the pressure is qualified when the requirement is met is judged.
Claims (1)
1. The utility model provides a marine closed high pressure water smoke spraying system experimental apparatus, includes: the high-pressure spray system comprises a joint, a high-pressure hose, a pressure gauge, a control valve and an open type spray head, wherein one end of the joint is connected with a ventilation valve of the closed type high-pressure spray system, and the other end of the joint is sequentially connected with the high-pressure hose, the pressure gauge, the control valve and the open type spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011343108.2A CN112516489A (en) | 2020-11-25 | 2020-11-25 | Marine closed high-pressure water mist spraying system experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011343108.2A CN112516489A (en) | 2020-11-25 | 2020-11-25 | Marine closed high-pressure water mist spraying system experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112516489A true CN112516489A (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011343108.2A Pending CN112516489A (en) | 2020-11-25 | 2020-11-25 | Marine closed high-pressure water mist spraying system experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112516489A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354146A (en) * | 2021-10-18 | 2022-04-15 | 黑龙江八一农垦大学 | Rapid intelligent detector for field spraying machine and detection method thereof |
| CN115140264A (en) * | 2022-05-17 | 2022-10-04 | 中船黄埔文冲船舶有限公司 | Partition debugging method |
-
2020
- 2020-11-25 CN CN202011343108.2A patent/CN112516489A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354146A (en) * | 2021-10-18 | 2022-04-15 | 黑龙江八一农垦大学 | Rapid intelligent detector for field spraying machine and detection method thereof |
| CN115140264A (en) * | 2022-05-17 | 2022-10-04 | 中船黄埔文冲船舶有限公司 | Partition debugging method |
| CN115140264B (en) * | 2022-05-17 | 2023-07-25 | 中船黄埔文冲船舶有限公司 | Partition debugging method |
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