CN222623577U - Automatic foam spraying system suitable for offshore oil platform - Google Patents
Automatic foam spraying system suitable for offshore oil platform Download PDFInfo
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- CN222623577U CN222623577U CN202421055890.1U CN202421055890U CN222623577U CN 222623577 U CN222623577 U CN 222623577U CN 202421055890 U CN202421055890 U CN 202421055890U CN 222623577 U CN222623577 U CN 222623577U
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Abstract
The utility model discloses an automatic foam spraying system suitable for an offshore oil platform, which comprises a deluge valve, a foam proportion mixer and a spraying unit which are sequentially communicated through a fire water main pipeline, wherein the deluge valve is connected with a meter control system, the foam proportion mixer is communicated with a foam tank, the meter control system comprises a self-operated regulating valve and an electromagnetic valve which are sequentially communicated with a meter air source through a meter air pipeline, the electromagnetic valve is communicated with the meter air source of the deluge valve, the spraying unit is arranged at the terminal end of the fire water main pipeline, the starting end of the fire water main pipeline is connected with the fire water ring network, the spraying unit comprises a plurality of branch pipelines which are communicated with the fire water main pipeline, and at least one spray head is arranged on each branch pipeline. According to the utility model, the deluge valve is combined with the foam system, so that automatic foam spraying is realized, the fire disaster of the crude oil treatment facility of the offshore platform can be effectively controlled, the expansion of the fire disaster is prevented, and the personal/economic loss caused by the fire accident is reduced.
Description
Technical Field
The utility model belongs to the field of fire safety equipment of offshore oil platforms, and particularly relates to an automatic foam spraying system suitable for offshore oil platforms.
Background
At present, offshore platforms are mainly used for protecting equipment by configuring fire water automatic spraying, fire water/foam hose stations and portable fire extinguishers. The flash point of the crude oil is lower than 60 ℃, fire water spraying can not thoroughly extinguish fire, the main function of the fire water spraying is cooling equipment, the density of seawater is higher than that of the crude oil, for fire disaster formed by burning the crude oil, the seawater can not isolate the crude oil from air, but can carry the crude oil to flow around, and the fire area is further expanded and spread. The fire water/foam hose station can only be manually operated and can only be used for controlling small-sized fires in the initial stage, and the foam liquid filled in the hose station has small capacity and short spraying time, and after the fire condition is enlarged, personnel cannot approach to operate the foam hose station.
Disclosure of utility model
The utility model provides an automatic foam spraying system suitable for an offshore oil platform, which aims to solve the problems existing in the prior art.
The utility model is realized by the following technical scheme:
The automatic foam spraying system suitable for the offshore oil platform comprises a deluge valve, a foam proportion mixer and a spraying unit which are sequentially communicated through a fire water main pipeline, wherein the deluge valve is electrically connected with a meter control system, the foam proportion mixer is mutually communicated with a foam tank, the meter control system comprises a self-operated regulating valve and an electromagnetic valve which are sequentially communicated with a meter air source through a meter air pipeline, the electromagnetic valve is communicated with a meter air source of the deluge valve through the meter air pipeline, the spraying unit is arranged at the terminal end of the fire water main pipeline, the starting end of the fire water main pipeline is connected with a fire water ring network, the spraying unit comprises a plurality of branch pipelines which are communicated with the fire water main pipeline, and at least one spray nozzle is arranged on each branch pipeline.
In the technical scheme, the upstream and downstream of the foam proportion mixer and the upstream of the deluge valve are both arranged on the isolation valve and the pressure gauge.
In the above technical scheme, the isolation valve and the pressure gauge at the upstream of the foam proportion mixer are arranged between the deluge valve and the foam proportion mixer, and the isolation valve and the pressure gauge at the downstream of the foam proportion mixer are arranged between the foam proportion mixer and the spray unit.
In the technical scheme, a check valve is arranged between the self-operated adjusting valve and the electromagnetic valve.
In the technical scheme, an air source isolation valve and an air source pressure gauge are arranged between the self-operated regulating valve and the instrument air source.
In the technical scheme, an electromagnetic valve pressure gauge is arranged between the electromagnetic valve and the deluge valve.
In the technical scheme, the fire-fighting water main pipeline and the branch pipeline are both seawater corrosion resistant pipelines.
According to the technical scheme, the foam proportion mixer comprises a tubular shell, a water spraying cavity and a diffusion pipe, wherein the water spraying cavity and the diffusion pipe are arranged in the shell and are mutually communicated, the water spraying cavity is of a hollow cylindrical structure, the bottom end of the water spraying cavity is fixed with the inner wall of the shell, the water inlet side end face of the water spraying cavity forms a conical surface extending towards the water outlet side, the lowest point of the conical surface forms a water inlet, a nozzle is arranged at the water inlet, the water outlet side end face of the water spraying cavity forms a conical surface extending towards the water outlet side, the lowest point of the conical surface forms a water outlet, the diffusion pipe is a conical pipe with the diameter gradually expanding from the water inlet side to the water outlet side, the end part of the large diameter end of the diffusion pipe is fixed with the inner wall of the shell, the water spraying cavity is communicated with a foam tank through a foam liquid outlet pipe, an orifice plate is arranged at the water spraying cavity end port of the foam liquid outlet pipe, and a space defined among the water spraying cavity, the diffusion pipe and the shell is communicated with the foam tank through a pressure water inlet pipe.
In the above technical scheme, the water spray cavity is arranged on the water inlet side of the shell.
In the above technical scheme, the shell at the upper end of the shell water spray cavity expands outwards.
The beneficial effects of the utility model are as follows:
The utility model provides an automatic foam spraying system suitable for an offshore oil platform, which combines a deluge valve with a foam system to realize automatic spraying of foam, and can effectively extinguish and control fire of crude oil treatment facilities of the offshore oil platform, prevent the expansion of fire and reduce personal/economic losses caused by fire accidents of the offshore facilities.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a control system according to the present utility model;
FIG. 3 is a schematic diagram of the structure of a proportional mixer in the present utility model.
Wherein:
1. The device comprises a deluge valve, a foam tank, a 3-foam proportion mixer, a 4-meter control system, a 5-fire water main pipeline, a 6-nozzle, a 7-self-operated adjusting valve, a 8-electromagnetic valve, a 9-pressure gauge, a 10-isolation valve, a 11-check valve, a 12-meter gas pipeline, a 13-electromagnetic valve pressure gauge, a 14-gas source isolation valve, a 15-gas source pressure gauge, a 16-shell, a 17-nozzle, a 18-diffusion pipe, a 19-mixing cavity, a 20-foam liquid outlet pipe, a 21-orifice plate, a 22-pressure water inlet pipe, a 23-water spraying cavity.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be further described below by means of specific embodiments in combination with the accompanying drawings of the specification.
As shown in fig. 1, an automatic foam spray system for an offshore oil platform comprises a deluge valve 1, a foam proportion mixer 3 and a spray unit which are sequentially communicated through a fire water main pipeline 5;
the deluge valve 1 is connected with the instrument control system 4;
the foam proportion mixer 3 is communicated with the foam tank 2;
The upper and lower stream of the foam proportion mixer 3 and the upper stream of the deluge valve 1 are respectively arranged on the isolation valve 10 and the pressure gauge 9, and the isolation valve 10 and the pressure gauge 9 at the upper stream of the foam proportion mixer 3 are arranged between the deluge valve 1 and the foam proportion mixer 3;
as shown in fig. 3, the foam proportioner 3 comprises a tubular shell 16, a water spraying cavity 23 and a diffusion pipe 18, wherein the water spraying cavity 23 and the diffusion pipe 18 are arranged in the shell 16 and are communicated with each other, and the water spraying cavity 23 is arranged on the water inlet side of the shell 16;
the two ends of the shell 16 are provided with pipe fittings for connecting with the fire water main pipeline 5, and the shell 16 at the upper end of the water spraying cavity 23 expands outwards;
The water spraying cavity 23 is of a hollow cylindrical structure, the bottom end of the water spraying cavity 23 is fixed with the inner wall of the shell 16, the end face of the water inlet side of the water spraying cavity 23 forms a conical surface extending towards the water outlet side, the lowest point of the conical surface forms a water inlet, the water inlet is provided with a nozzle 17, the end face of the water outlet side of the water spraying cavity 23 forms a conical surface extending towards the water outlet side, and the lowest point of the conical surface forms a water outlet;
The diffusion tube 18 is a conical tube with gradually expanding diameter from the water inlet side to the water outlet side, and the end part of the large diameter end of the diffusion tube 18 is fixed with the inner wall of the shell 16;
The water spray cavity 23 is communicated with the foam tank 2 through a foam liquid outlet pipe 20, and a pore plate 21 is arranged at the end port of the water spray cavity of the foam liquid outlet pipe 20;
The water spray cavity 23, the diffusion pipe 18 and the shell 16 form a space which is communicated with the foam tank 2 through a pressurized water inlet pipe 22;
The pressure fire water enters the inlet of the foam proportion mixer 3 through the fire water main pipeline 5, the water is sprayed out to the diffusion pipe 18 through the nozzle 17, a low-pressure area is formed between the outlet of the nozzle 17 and the diffusion pipe 18, a part of water with pressure flowing through the pressure water pipe enters a foam liquid storage tank through the pressure water inlet pipe 22, foam liquid is pressed out from the foam liquid outlet pipe 20, enters the low-pressure area through the orifice plate 21, and is mixed with the pressure water flow in the mixing cavity 19 to form foam mixed liquid output;
As shown in fig. 2, the instrument control system 4 comprises a self-operated regulating valve 7 and an electromagnetic valve 8 which are sequentially communicated with an instrument air source through an instrument air pipeline 12, the electromagnetic valve 8 is communicated with the instrument air source of the deluge valve 1 through the instrument air pipeline 12, and the instrument control system 4 receives fire electric signals and controls the on-off of the instrument air source of the deluge valve 1 through the power supply/failure of the electromagnetic valve 8;
The electromagnetic valve 8 is connected with a fire control system on the platform and receives a fire signal sent by the fire control system, wherein the fire control system does not belong to the system;
a check valve 11 is arranged between the self-operated regulating valve 7 and the electromagnetic valve 8;
An air source isolation valve 14 and an air source pressure gauge 15 are arranged between the self-operated regulating valve 7 and an instrument air source;
an electromagnetic valve pressure gauge 13 is arranged between the electromagnetic valve 8 and the deluge valve 1;
The spraying unit is arranged at the terminal end of the fire water main pipeline 5, and the starting end of the fire water main pipeline 5 is connected with the fire water ring network;
The fire-fighting water main pipeline 5 and the branch pipeline are seawater corrosion resistant pipelines, and in the embodiment, the fire-fighting water main pipeline 5 and the branch pipeline adopt copper-nickel pipelines;
A certain proportion of foam mixture is stored in the foam tank 2, and in this embodiment, the foam tank 2 contains 3% of AFFF foam fire extinguishing agent.
The foam tank 2 is designed according to a pressure container, and the number and distribution positions of the spray heads 6 in the spray unit are designed according to the spray requirements of the protected objects.
The application method of the utility model comprises the following steps:
When fire disaster is confirmed in the protection area, the system is started, the deluge valve 1 is opened, and after the fire water and foam liquid in the foam tank 2 are mixed in proportion in the foam proportion mixer 3, automatic spraying fire extinguishing is realized through the spray head 6.
The utility model adds the foam liquid supply device on the basis of the original wet automatic water spraying fire extinguishing system, realizes quick response to the oil fire, has high efficiency, energy conservation, high reliability and strong pertinence, adopts the environment-friendly foam mixed liquid to have smaller influence on the environment, does not generate toxic residues or cause serious pollution to the atmosphere, is easy to clean residues left by the foam, does not cause excessive damage to the fire extinguishing area, and saves manufacturing cost and installation cost because other facilities are designed in a sledge way except a spray head.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The applicant declares that the above is only a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and it should be apparent to those skilled in the art that any changes or substitutions that are easily conceivable within the technical scope of the present utility model disclosed by the present utility model fall within the scope of the present utility model and the disclosure.
Claims (10)
1. The automatic foam spraying system suitable for the offshore oil platform is characterized by comprising a deluge valve (1), a foam proportion mixer (3) and a spraying unit which are sequentially communicated through a fire water main pipeline (5), wherein the deluge valve (1) is connected with a meter control system (4), the foam proportion mixer (3) is mutually communicated with a foam tank (2), the meter control system (4) comprises a self-operated regulating valve (7) and an electromagnetic valve (8) which are sequentially communicated with an instrument air source through an instrument air pipeline (12), the electromagnetic valve (8) is communicated with the instrument air source of the deluge valve (1) through the instrument air pipeline (12), the spraying unit is arranged at the terminal end of the fire water main pipeline (5), the starting end of the fire water main pipeline (5) is connected into the fire water ring network, and the spraying unit comprises a plurality of branch pipelines which are communicated with the fire water main pipeline (5), and at least one spray head (6) is arranged on each branch pipeline.
2. The automatic foam spraying system for the offshore oil platform, as claimed in claim 1, wherein the upper stream and the lower stream of the foam proportion mixer (3) and the upper stream of the deluge valve (1) are respectively arranged on the isolation valve (10) and the pressure gauge (9).
3. The automatic foam spraying system for offshore oil platforms according to claim 2, wherein an isolation valve (10) and a pressure gauge (9) are arranged between the deluge valve (1) and the foam proportional mixer (3) at the upstream of the foam proportional mixer (3), and an isolation valve (10) and a pressure gauge (9) are arranged between the foam proportional mixer (3) and the spraying unit at the downstream of the foam proportional mixer (3).
4. The automatic foam spraying system suitable for the offshore oil platform according to claim 1, wherein a check valve (11) is arranged between the self-operated adjusting valve (7) and the electromagnetic valve (8).
5. The automatic foam spraying system suitable for the offshore oil platform, as claimed in claim 1, wherein an air source isolation valve (14) and an air source pressure gauge (15) are arranged between the self-operated adjusting valve (7) and an instrument air source.
6. The automatic foam spraying system suitable for the offshore oil platform according to claim 1 is characterized in that a solenoid valve pressure gauge (13) is arranged between the solenoid valve (8) and the deluge valve (1).
7. The automatic foam spraying system suitable for the offshore oil platform, as claimed in claim 1, wherein the fire water main pipeline (5) and the branch pipeline are seawater corrosion resistant pipelines.
8. The automatic foam spraying system suitable for offshore oil platforms according to claim 1, wherein the foam proportioning mixer (3) comprises a tubular shell (16), and a water spraying cavity (23) and a diffusion pipe (18) which are arranged in the shell (16) and are communicated with each other;
The water spraying cavity (23) is of a hollow cylindrical structure, the bottom end of the water spraying cavity is fixed with the inner wall of the shell (16), the end face of the water inlet side of the water spraying cavity (23) forms a conical surface extending towards the water outlet side, the lowest point of the conical surface forms a water inlet, the water inlet is provided with a nozzle (17), the end face of the water outlet side of the water spraying cavity (23) forms a conical surface extending towards the water outlet side, and the lowest point of the conical surface forms a water outlet;
The large-diameter end part of the diffusion pipe (18) is fixed with the inner wall of the shell (16);
The water spraying cavity (23) is communicated with the foam tank (2) through a foam liquid outlet pipe (20), and a pore plate (21) is arranged at the end port of the water spraying cavity of the foam liquid outlet pipe (20);
The water spraying cavity (23), the diffusion pipe (18) and the shell (16) form a space, and the space is communicated with the foam tank (2) through the pressure water inlet pipe (22).
9. The automatic foam spraying system for offshore oil platforms according to claim 8, wherein the water spraying cavity (23) is arranged on the water inlet side of the housing (16).
10. The automatic foam spraying system for offshore oil platforms according to claim 8, wherein the housing (16) at the upper end of the water spraying chamber (23) of the housing (16) is expanded outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421055890.1U CN222623577U (en) | 2024-05-15 | 2024-05-15 | Automatic foam spraying system suitable for offshore oil platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421055890.1U CN222623577U (en) | 2024-05-15 | 2024-05-15 | Automatic foam spraying system suitable for offshore oil platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222623577U true CN222623577U (en) | 2025-03-18 |
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ID=94961384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421055890.1U Active CN222623577U (en) | 2024-05-15 | 2024-05-15 | Automatic foam spraying system suitable for offshore oil platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222623577U (en) |
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2024
- 2024-05-15 CN CN202421055890.1U patent/CN222623577U/en active Active
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