Fireproof separation water curtain of offshore production facility

Abstract

The utility model discloses a fireproof separation water curtain for offshore production facilities, which comprises a fire pump and a water curtain nozzle, the water curtain nozzle is connected to the fire pump through a water curtain branch, the fire pump is connected with a main fire pipe network, a deluge valve is arranged on the water curtain branch, and the deluge valve is used for changing the water yield of the water curtain nozzle. The fire pump is connected with the fire and gas control system, the fire and gas control system is connected with a fire detector, and the fire detector sends an instruction to the fire and gas control system to start the fire pump. According to the fireproof separation water curtain for the offshore production facility, the curtain formed by water flow with a certain thickness is adopted, smoke and flame propagation is blocked, a non-solid wall is adopted, the space of the offshore production facility is not occupied, the weight is not increased, the fireproof separation water curtain can be flexibly applied according to needs, and the area of a single fire area is reduced on the premise that fire safety is guaranteed; the maximum discharge capacity of the fire pump and the size of the fire main pipe are reduced, and cost reduction and efficiency improvement are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of offshore oil engineering, especially relates to a fireproof separation water curtain of offshore production facility. BACKGROUND

[0002] The fireproof separation of offshore oil and gas production facility is mainly physical separation by fire wall. The setting of fire wall is limited by the following factors, firstly, the requirement of process flow and equipment arrangement; secondly, the influence of weight and size of fire wall on overall design of platform; thirdly, the requirement of natural full ventilation of platform.

[0003] Affected by the above three aspects, at present, for large central platform or upper module of FPSO, the fire wall is only set between process area and public area, which leads to large single fire area of process area, large fire-fighting water volume (usually above 2000 square meters per hour) and large layout area of platform.

[0004] Therefore, it is urgent to design a fireproof separation water curtain of offshore production facility to solve the above-mentioned fireproof problem of offshore production facility. CONTENT OF UTILITY MODEL

[0005] In order to solve the technical problem of large single fire area of process area, large fire-fighting water volume and large layout area of platform caused by the setting of fire wall between process area and public area mentioned in the background, a fireproof separation water curtain of offshore production facility is provided to solve the fireproof problem of offshore production facility.

[0006] In order to achieve the above-mentioned purpose, the specific technical scheme of the fireproof separation water curtain of offshore production facility of the utility model is as follows:

[0007] A fireproof separation water curtain of offshore production facility, comprising a fire pump and a water curtain spray head, the water curtain spray head is connected to the fire pump through a water curtain branch, the fire pump is connected with a fire main pipe network, a deluge valve is arranged on the water curtain branch, the deluge valve changes the water output of the water curtain spray head, the fire pump is connected with a fire and gas control system, a fire detector is connected to the fire and gas control system, and the fire detector sends an instruction to the fire and gas control system to start the fire pump.

[0008] Further, the water curtain spray head comprises a first water curtain spray head and a second water curtain spray head, the first water curtain spray head is arranged on a first connecting pipe, and the second water curtain spray head is arranged on a second connecting pipe; the first connecting pipe and the second connecting pipe are connected to the water curtain branch.

[0009] Further, a plurality of first water curtain spray heads are connected to the first connecting pipe at equal intervals, and a plurality of second water curtain spray heads are connected to the second connecting pipe at equal intervals.

[0010] Further, the first connecting pipe and the second connecting pipe are parallel, and the first connecting pipe and the second connecting pipe are staggered and connected on the water curtain branch.

[0011] Further, the water curtain nozzle further comprises a third water curtain nozzle and a fourth water curtain nozzle, the third water curtain nozzle is arranged on the third connecting pipe, and the fourth water curtain nozzle is arranged on the fourth connecting pipe, and the third connecting pipe and the fourth connecting pipe are connected on the water curtain branch.

[0012] Further, the third connecting pipe is arranged on the lower side of the first connecting pipe in parallel, and the fourth connecting pipe is arranged on the lower side of the second connecting pipe in parallel.

[0013] Further, the deluge valve is connected on the water curtain branch, and the deluge valve is adjusted to change the pressure of the first water curtain nozzle, the second water curtain nozzle, the third water curtain nozzle and the fourth water curtain nozzle.

[0014] Further, the first connecting pipe and the second connecting pipe are both fixed on the upper deck.

[0015] Further, the fire pump is connected with the water curtain branch and the fire main pipe network respectively to inject fire water into the water curtain branch and the fire main pipe network.

[0016] Further, the deluge valve is connected with the fire gas control system to control the opening and closing degree of the deluge valve.

[0017] The offshore production facility fireproof separation water curtain has the following advantages:

[0018] The curtain formed by the water flow with a certain thickness blocks the spread of smoke and flame, is a non-solid wall, does not occupy the space of the offshore production facility, and does not increase the weight, and can be flexibly applied according to the needs, reduces the area of a single fire zone, reduces the maximum displacement of the fire pump and the size of the fire main pipe, realizes cost reduction and benefit increase, and can be applied to the protection of the escape passage, protects the safety of personnel escape, and improves the intrinsic safety level of the offshore production facility. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the offshore production facility fireproof separation water curtain of the utility model;

[0020] Figure 2 It is a double-row staggered installation schematic view of the offshore production facility fireproof separation water curtain of the utility model;

[0021] Figure 3 It is a single-layer nozzle structure schematic view of the offshore production facility fireproof separation water curtain of the utility model;

[0022] Figure 4 It is a multi-layer nozzle structure schematic view of the offshore production facility fireproof separation water curtain of the utility model.

[0023] Marked in the figure:

[0024] 1, fire pump; 2, fire detector; 3, fire main; 4, deluge valve; 5, water curtain branch; 6, first connecting pipe; 7, second connecting pipe; 8, third connecting pipe; 9, first water curtain nozzle; 10, second water curtain nozzle; 11, third water curtain nozzle. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0027] The following refers to the accompanying Figure 1 to the accompanying Figure 4 The offshore production facility fire separation water curtain of the present application is described.

[0028] As Figure 1 shown, the offshore production facility fire separation water curtain in the present application includes a fire pump 1 and a water curtain nozzle, the water curtain nozzle is connected to the fire pump 1 through a water curtain branch 5, the fire pump 1 is connected to a fire main 3, a deluge valve 4 is arranged on the water curtain branch 5, the deluge valve 4 changes the water output of the water curtain nozzle, the fire pump 1 is connected to a fire and gas control system, a fire detector 2 is connected to the fire and gas control system, the fire detector 2 sends an instruction to the fire and gas control system to start the fire pump 1. The curtain formed by the water flow of a certain thickness blocks the spread of smoke and flame, is not a solid wall, does not occupy the space of the offshore production facility, does not increase the weight, can be flexibly applied according to the need, reduces the area of a single fire zone, reduces the maximum displacement of the fire pump and the size of the fire main under the premise of ensuring fire safety, realizes cost reduction and benefit increase. The present application can be applied to the protection of an escape passage, protects the safety of personnel escape, and improves the intrinsic safety level of the offshore production facility.

[0029] Further, as Figures 1 to 3As shown, the water curtain spray head includes a first water curtain spray head 9 and a second water curtain spray head 10, the first water curtain spray head 9 is arranged on the first connecting pipe 6, the second water curtain spray head 10 is arranged on the second connecting pipe 7, and the first connecting pipe 6 and the second connecting pipe 7 are connected on the water curtain branch 5; A plurality of first water curtain spray heads 9 are connected on the first connecting pipe 6 at equal intervals, and a plurality of second water curtain spray heads 10 are connected on the second connecting pipe 7 at equal intervals; The first connecting pipe 6 and the second connecting pipe 7 are parallel, and the first connecting pipe 6 and the second connecting pipe 7 are staggered and connected on the water curtain branch 5.

[0030] In this embodiment, preferably, the first water curtain spray head 9 is fixedly connected to the first connecting pipe 6, the second water curtain spray head 10 is fixedly connected to the second connecting pipe 7, one end of the first connecting pipe 6 and the second connecting pipe 7 is connected to the water curtain branch 5, and the other end of the water curtain branch 5 is connected to the fire pump 1. The fire pump 1 makes the fire water enter the first connecting pipe 6 and the second connecting pipe 7 from the water curtain branch 5, and then realizes the water curtain spray of the first water curtain spray head 9 and the second water curtain spray head 10 to form a water curtain. The water curtain is a non-solid wall, does not occupy the space of the offshore production facility, and does not increase the weight, solving the problem of heavy weight and space occupation of the traditional solid fire wall.

[0031] A plurality of first water curtain spray heads 9 are connected on the first connecting pipe 6, and the interval between adjacent first water curtain spray heads 9 is equal, which is 1.2-1.4m; A plurality of second water curtain spray heads 10 are connected on the second connecting pipe 7, and the interval between adjacent second water curtain spray heads 10 is equal, which is 1.2-1.4m; The first connecting pipe 6 and the second connecting pipe 7 are arranged in parallel to make the fire water form a water curtain, and the first connecting pipe 6 and the second connecting pipe 7 are staggered and connected on the water curtain branch 5. The interval between the first connecting pipe 6 and the second connecting pipe 7 is 1m-2m, so that the water curtain protection effect is better, and it is resistant to marine environment corrosion and offshore strong wind environment, and can be flexibly selected and arranged according to needs, solving the problem of limited arrangement position of the traditional solid wall and the problem of blocking the natural ventilation of the offshore production facility after arrangement.

[0032] Further, as shown in Figure 1 and Figure 4 The water curtain spray head further includes a third water curtain spray head 11 and a fourth water curtain spray head, the third water curtain spray head 11 is arranged on the third connecting pipe 8, the fourth water curtain spray head is arranged on the fourth connecting pipe, and the third connecting pipe 8 and the fourth connecting pipe are connected on the water curtain branch 5; The third connecting pipe 8 is arranged on the lower side of the first connecting pipe 6 in parallel, and the fourth connecting pipe is arranged on the lower side of the second connecting pipe 7 in parallel; The deluge valve 4 is connected on the water curtain branch 5, and the deluge valve 4 is adjusted to change the pressure of the first water curtain spray head 6, the second water curtain spray head 7, the third water curtain spray head 8 and the fourth water curtain spray head.

[0033] In this embodiment, preferably, the height of the water curtain from the ground is flexibly adjusted, generally not higher than 7m, and the number of layers of the water curtain nozzles is arranged, and the height of each layer is flexibly adjusted, generally not more than 7m, when the distance between the platform decks is too large, a third connecting pipe 11 and a fourth connecting pipe are connected to the water curtain branch 5, and a third water curtain nozzle 8 is connected to the third connecting pipe 11, and a fourth water curtain nozzle is connected to the fourth connecting pipe, thereby realizing the fire separation function.

[0034] Preferably, the third connecting pipe 8 is arranged in parallel below the first connecting pipe 6, and the fourth connecting pipe is arranged in parallel below the second connecting pipe 7, thereby realizing fire prevention for multi-deck with large spacing; the water curtain branch 5 is connected with a deluge valve 4, the deluge valve 4 adjusts the pressure of a water curtain nozzle 9, a second water curtain nozzle 10, a third water curtain nozzle 11 and a fourth water curtain nozzle, i.e. 1.4bar-3.5bar, different pressures make the water droplet diameter of the water curtain different, adapt to the wind environment at sea, the deluge valve has the function of automatically adjusting the pressure, under the premise of ensuring fire safety, effectively reducing the area of a single fire zone, reducing the maximum displacement of the fire pump and the size of the fire main pipe, and realizing cost reduction and efficiency increase.

[0035] By using the principle of large water specific heat capacity, slow temperature rise under heating, heat absorption under heating vaporization, etc., the spread of fire and heat radiation is blocked when fire occurs; at the same time, a water curtain with a certain thickness forms a function similar to a solid wall, which blocks the spread of smoke generated by combustion, thereby limiting many elements leading to fire spread, such as fire, heat, smoke, etc., to a certain range, effectively realizing the fire separation function.

[0036] Further, as shown in Figure 1 the first connecting pipe 6 and the second connecting pipe 7 are fixed to the upper deck; the fire pump 1 is connected with the water curtain branch 5 and the fire main pipe network 3 respectively to inject fire water into the water curtain branch 5 and the fire main pipe network 3; the deluge valve 4 is connected with the fire gas control system to control the opening degree of the deluge valve.

[0037] In this embodiment, preferably, the first connecting pipe 6 and the second connecting pipe 7 are fixedly connected to the lower side of the upper deck to form a water curtain; the fire pump 1 is connected with the water curtain branch 5 and the fire main pipe network 3 respectively to inject fire water into the water curtain branch 5 and the fire main pipe network 3, and the fire main pipe network 3 is connected with fire facilities in other areas; the deluge valve 4 is connected with the fire gas control system, and the fire gas control system controls the opening degree of the deluge valve 4, thereby changing the pressure of the first water curtain nozzle 91, the second water curtain nozzle 10, the third water curtain nozzle 11 and the fourth water curtain nozzle.

[0038] Another aspect can be applied to the protection of escape passage, protect personnel escape safety, improve the essential safety level of offshore production facilities; the inlet pressure of the deluge valve 4 is adjusted flexibly to adjust the diameter of the water droplets of the water curtain nozzle, and different sizes of the water droplet diameter can adapt to the offshore wind environment, ensure that the water curtain is not affected by the wind, and the automation level is high, and the water curtain is opened and closed automatically according to the on-site fire.

[0039] The working principle of the offshore production facility fireproof separation water curtain in the utility model is as follows:

[0040] After the fire detector 2 detects and confirms the fire, information is transmitted to the fire gas control system on the production facility, the fire gas control system issues an instruction, starts the fire pump 1, opens the water curtain deluge valve 4, and the water flow passes through the fire main pipe network 3, the deluge valve 4, the water curtain branch pipe 5, and the first connecting pipe 6 and the second connecting pipe 7, enters the first water curtain nozzle 9 and the second water curtain nozzle 10, and the first water curtain nozzle 9 and the second water curtain nozzle 10 disperse water under the water flow pressure, form a water curtain, and block the spread of fire while achieving fire extinguishing.

[0041] Based on the offshore production facility fireproof separation water curtain, the utility model forms a curtain by using water flow of a certain thickness, blocks the spread of smoke and flame, is a non-solid wall, does not occupy the space of the offshore production facility, does not increase the weight, can be flexibly applied according to the need, reduces the area of a single fire zone, reduces the maximum displacement of the fire pump and the size of the fire main pipe under the premise of ensuring fire safety, realizes cost reduction and benefit increase. The present application can be applied to the protection of escape passage, protect personnel escape safety, improve the essential safety level of offshore production facilities.

[0042] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not limited to the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A fireproof separation water curtain for offshore production facilities, c h a r a c t e r i s e d in that The fire pump is connected with a fire main network, and a deluge valve is arranged on the deluge branch to change the water flow of the deluge nozzle.

2. A fire separation water curtain for an offshore production facility according to claim 1, characterized in that The deluge nozzle comprises a first deluge nozzle and a second deluge nozzle, the first deluge nozzle is arranged on a first connecting pipe, and the second deluge nozzle is arranged on a second connecting pipe.

3. A fire separation water screen for an offshore production facility according to claim 2, c h a r a c t e r i s e d in that The first connecting pipe and the second connecting pipe are both connected with the deluge branch.

4. A fire separation water screen for an offshore production facility according to claim 3, c h a r a c t e r i s e d in that The first connecting pipe and the second connecting pipe are parallel, and the first connecting pipe and the second connecting pipe are staggered and connected with the deluge branch.

5. A fire separation water curtain for an offshore production facility according to claim 1, c h a r a c t e r i s e d in that The deluge nozzle further comprises a third deluge nozzle and a fourth deluge nozzle, the third deluge nozzle is arranged on a third connecting pipe, and the fourth deluge nozzle is arranged on a fourth connecting pipe.

6. A fire separation water curtain for an offshore production facility according to claim 5, c h a r a c t e r i s e d in that The third connecting pipe is arranged on the lower side of the first connecting pipe in parallel, and the fourth connecting pipe is arranged on the lower side of the second connecting pipe in parallel.

7. A fire separation water screen for an offshore production facility according to claim 1, c h a r a c t e r i s e d i n that The deluge valve is connected with the deluge branch to adjust the deluge valve to change the pressure of the first deluge nozzle, the second deluge nozzle, the third deluge nozzle and the fourth deluge nozzle.

8. A fire separation water screen for an offshore production facility according to claim 6, c h a r a c t e r i s e d i n that The first connecting pipe and the second connecting pipe are both fixed on the upper deck.

9. A fire separation water screen for an offshore production facility according to claim 1, c h a r a c t e r i s e d i n that The fire pump is connected with the deluge branch and the fire main network to inject fire water into the deluge branch and the fire main network.

10. A fire separation water screen for an offshore production facility according to claim 7, c h a r a c t e r i s e d i n that The deluge valve is connected with the fire gas control system to control the opening and closing degree of the deluge valve.

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