Explosion-proof and heat-insulation system for spherical tank

Abstract

The utility model relates to the technical field of spherical tank explosion suppression and heat insulation, in particular to a spherical tank explosion suppression and heat insulation system which comprises a monitoring unit, a water spraying unit and a control unit. The monitoring unit is used for monitoring whether overpressure and / or overtemperature occurs around the spherical tank or not, the water spraying unit is used for spraying water to the periphery and the upper portion of the spherical tank, and the control unit is used for controlling the spherical tank when the monitoring unit monitors that overpressure and / or overtemperature occurs around the spherical tank. And the water spraying unit is controlled to spray water to the periphery and the upper portion of the spherical tank, and an isolation water curtain is formed. In practical application, by means of the explosion-proof and heat-insulation system for the spherical tank, in the combustible vapor cloud explosion and / or flame heat radiation environment, the situation that the spherical tank is damaged due to the fact that the combustible vapor cloud explosion and / or flame heat radiation directly act on the spherical tank for a long time can be avoided in the mode that high-strength water curtains are formed on the periphery and the upper portion of the spherical tank.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof and heat-insulating of spherical tanks, in particular to an explosion-proof and heat-insulating system of a spherical tank. Background Art

[0002] As a thin-shell structure, liquefied hydrocarbon spherical tanks have many advantages such as large capacity, low cost and good stability, and are widely used in petrochemical enterprises and chemical parks. However, under the long-term action of combustible vapor cloud explosion and / or jet fire, thin-walled steel storage tanks are very likely to produce large plastic deformation or penetration damage, which will lead to leakage of internal combustible materials, secondary explosions and even chain domino effects. According to relevant accident statistics, one in every eight major industrial accidents has a domino effect (DEA), and each DEA ​​causes an average of 13 deaths.

[0003] Therefore, there is an urgent need for a spherical tank explosion-proof and heat-insulating system, which can comprehensively improve the protection performance of the spherical tank by forming a high-strength water curtain around and above the spherical tank in the environment of combustible vapor cloud explosion and / or flame thermal radiation. Utility Model Content

[0004] The utility model provides a spherical tank explosion-proof and heat-insulating system to solve the problem of lack of an integrated explosion-proof and heat-insulating system in the prior art for spherical tank explosion-proof and heat-insulating, especially for liquefied hydrocarbon spherical tank explosion-proof and heat-insulating.

[0005] The technical solution of the utility model is as follows:

[0006] A spherical tank explosion-proof and heat-insulating system, comprising a monitoring unit, a water spray unit and a control unit;

[0007] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank, the water spraying unit is used to spray water around and above the spherical tank, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank and form an isolation water curtain when the monitoring unit detects overpressure and / or overtemperature occurs around the spherical tank.

[0008] Preferably, the monitoring unit comprises a pressure measuring device and a temperature measuring device.

[0009] Preferably, a plurality of the pressure measuring devices and the temperature measuring devices are installed around the spherical tank via a support frame.

[0010] Preferably, a plurality of the pressure measuring devices and the temperature measuring devices are installed at preset intervals on the end surface of the support frame away from the spherical tank.

[0011] Preferably, a plurality of the pressure measuring devices and the temperature measuring devices are installed on the end surface of the support frame away from the spherical tank through threaded holes on the support frame.

[0012] Preferably, the water spray unit includes a water spray head and a water supply pipe connected to the water spray head.

[0013] Preferably, a plurality of the water spray heads are installed around and above the spherical tank via a support frame.

[0014] Preferably, a plurality of the water spray heads are installed at preset intervals on the end surface of the support frame close to the spherical tank.

[0015] Preferably, a plurality of the water spray heads are mounted on the end surface of the support frame close to the spherical tank via a fixing frame.

[0016] Preferably, the water supply pipe is installed on the end surface of the support frame close to the spherical tank.

[0017] Preferably, the control unit includes a protective cover and a controller disposed inside the protective cover, and the controller is electrically connected to the monitoring unit and the water supply unit via a signal line.

[0018] Preferably, the support frame is hollowed out inside.

[0019] Preferably, the signal line is arranged inside the support frame and close to one side of the spherical tank.

[0020] Preferably, the controller is arranged on the end surface of the support frame located above the spherical tank.

[0021] According to the above technical scheme, based on the explosion-proof and heat-insulating system of the spherical tank, in the environment of combustible vapor cloud explosion and / or thermal radiation, the monitoring unit, the water spray unit and the control unit can work together to form a high-intensity water curtain around and above the spherical tank to prevent the combustible vapor cloud explosion and / or flame thermal radiation from directly affecting the spherical tank for a long time, causing damage to the spherical tank, and then causing the combustible material inside the spherical tank to leak, resulting in secondary explosion and even a chain domino effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a spherical tank explosion-proof and heat-insulating system in a specific implementation mode;

[0023] Figure 2 yes Figure 1 The top view structural diagram of the spherical tank explosion-proof and thermal insulation system is shown.

[0024] Description of Reference Numerals

[0025] Support frame 1; sprinkler head 2; water supply pipe 3; fixing frame 4; pressure measuring device 5;

[0026] Temperature measuring device 6; controller 7; protective cover 8; signal line 9; spherical tank 10. DETAILED DESCRIPTION

[0027] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.

[0028] In the description of the present utility model, the term “comprise” and any variations thereof mean non-exclusive inclusion, possible existence or addition of one or more other features, units, components and / or combinations thereof.

[0029] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internally connected between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The utility model provides a spherical tank explosion-proof and heat-insulating system, which comprises a monitoring unit, a water spraying unit and a control unit;

[0031] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects overpressure and / or overtemperature occurs around the spherical tank 10.

[0032] According to the above technical scheme, based on the explosion-proof and heat-insulating system of the spherical tank, in the environment of combustible vapor cloud explosion and / or thermal radiation, the monitoring unit, the water spray unit and the control unit can work together to form a high-intensity water curtain around and above the spherical tank to prevent the combustible vapor cloud explosion and / or flame thermal radiation from directly affecting the spherical tank for a long time, causing damage to the spherical tank, and then causing the combustible material inside the spherical tank to leak, resulting in secondary explosion and even a chain domino effect.

[0033] In a preferred embodiment of the spherical tank explosion-proof and heat-insulating system of the utility model, the monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6.

[0034] Among them Figure 1-2As shown, in a specific embodiment, a plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through a support frame 1 .

[0035] Further in a more specific embodiment, a plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10 .

[0036] Furthermore, in a more specific embodiment, a plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1 .

[0037] In the embodiment of the utility model, a plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are arranged at preset intervals around the spherical tank 10 by the support frame 1. In the actual application process, the temperature and pressure around the spherical tank 10 can be effectively measured, and when the temperature and / or pressure around the spherical tank 10 exceeds the set safety value, the control unit promptly controls the water spraying unit to spray water around and above the spherical tank 10 to form an isolation water curtain. Among them, the isolation water curtain is specifically a closed isolation water curtain formed by high-intensity water spray around and above the spherical tank 10 (i.e., the front, back, left, right and top of the spherical tank 10), so as to avoid the explosion of the combustible vapor cloud and / or the direct and long-term action of the flame heat radiation on the spherical tank, resulting in damage to the spherical tank. The pressure measuring device 5 is a variety of pressure measuring devices including a pressure sensor, and the temperature measuring device 6 is a variety of temperature measuring devices including a flame temperature sensor.

[0038] In a preferred embodiment of the spherical tank explosion-proof and heat-insulating system of the utility model, the water spray unit includes a water spray head 2 and a water supply pipe 3 connected to the water spray head 2 .

[0039] Among them Figure 1-2 As shown, in a specific embodiment, a plurality of the water spray heads 2 are installed around and above the spherical tank 10 through a support frame 1.

[0040] Further in a more specific embodiment, a plurality of the water spray heads 2 are installed on the end surface of the support frame 1 close to the spherical tank 10 at preset intervals.

[0041] In a more specific embodiment, a plurality of the water spray heads 2 are mounted on the end surface of the support frame 1 close to the spherical tank 10 through a fixing frame 4. The water supply pipe 3 is mounted on the end surface of the support frame 1 close to the spherical tank 10, thereby preventing the explosion shock wave and / or high temperature flame from directly acting on the water supply pipe 3, causing the water supply pipe 3 to rupture.

[0042] In the embodiment of the utility model, the arrangement interval and number of the water spray heads 2 around and above the spherical tank 10 can be determined according to the actual installation environment and size of the spherical tank 10, and are not limited to Figure 1-2 As shown, the protective effect can be guaranteed. Furthermore, the direction of water spraying of the plurality of water spray heads 2 is not specifically limited, and a complete and effective isolation water curtain can be formed around and above the spherical tank 10. Preferably, a water curtain perpendicular to the ground is formed around the spherical tank 10, and a water curtain horizontal to the ground is formed above the spherical tank 10.

[0043] In a preferred embodiment of the spherical tank explosion-proof and heat-insulating system of the utility model, the control unit includes a protective cover 8 and a controller 7 arranged inside the protective cover 8, and the controller 7 is electrically connected to the monitoring unit and the water supply unit through a signal line 9.

[0044] In the embodiment of the utility model, specifically, the controller 7 is electrically connected to the pressure measuring device 5 and the temperature measuring device 6 of the monitoring unit through the signal line 9, and is electrically connected to the water pressure control device of the water supply unit, so that in actual application, the intensity of the water curtain can be flexibly controlled according to the intensity of the shock wave and the intensity of the flame heat radiation.

[0045] In a preferred embodiment of the spherical tank explosion-proof and heat-insulating system of the utility model, the interior of the support frame 1 is provided with a hollow portion. The signal line 9 is provided inside the support frame 1 and close to one side of the spherical tank 10. This prevents the explosion shock wave and / or high-temperature flame from directly acting on the signal line 9, causing a signal transmission failure.

[0046] In a preferred embodiment of the spherical tank explosion-proof and heat-insulating system of the utility model, the controller 7 is arranged on the end surface of the support frame 1 located above the spherical tank 10. Therefore, on the basis of the protection of the protective cover 8, the controller 7 is further protected to prevent the controller 7 from being damaged and causing the whole system to be disabled.

[0047] In a preferred embodiment of the spherical tank explosion-proof and heat-insulating system described in the utility model, the surfaces of the water supply pipe 3 and the signal line 9 are coated with a layer of high-temperature resistant material, thereby further protecting the water supply pipe 3 and the signal line 9, thereby ensuring stable and efficient operation of the system.

[0048] According to some embodiments of the utility model, the spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit;

[0049] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank 10;

[0050] The monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6;

[0051] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through the support frame 1;

[0052] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10;

[0053] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1 .

[0054] According to some other embodiments of the utility model, the spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit;

[0055] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank 10;

[0056] The monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6;

[0057] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through the support frame 1;

[0058] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10;

[0059] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1;

[0060] The water spray unit includes a water spray head 2 and a water supply pipe 3 connected to the water spray head 2;

[0061] A plurality of the water spray heads 2 are installed around and above the spherical tank 10 through a support frame 1;

[0062] A plurality of the water spray heads 2 are installed at preset intervals on the end surface of the support frame 1 close to the spherical tank 10;

[0063] A plurality of the water spray heads 2 are mounted on the end surface of the support frame 1 close to the spherical tank 10 through a fixing frame 4;

[0064] The water supply pipe 3 is installed on the end surface of the support frame 1 close to the spherical tank 10.

[0065] According to some other embodiments of the utility model, the spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit;

[0066] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank 10;

[0067] The monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6;

[0068] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through the support frame 1;

[0069] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10;

[0070] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1;

[0071] The water spray unit includes a water spray head 2 and a water supply pipe 3 connected to the water spray head 2;

[0072] A plurality of the water spray heads 2 are installed around and above the spherical tank 10 through a support frame 1;

[0073] A plurality of the water spray heads 2 are installed at preset intervals on the end surface of the support frame 1 close to the spherical tank 10;

[0074] A plurality of the water spray heads 2 are mounted on the end surface of the support frame 1 close to the spherical tank 10 through a fixing frame 4;

[0075] The water supply pipe 3 is installed on the end surface of the support frame 1 close to the spherical tank 10;

[0076] The control unit includes a protective cover 8 and a controller 7 disposed inside the protective cover 8, and the controller 7 is electrically connected to the monitoring unit and the water supply unit through a signal line 9;

[0077] The interior of the support frame 1 is provided with a hollow portion;

[0078] The signal line 9 is arranged inside the support frame 1 and close to one side of the spherical tank 10;

[0079] The controller 7 is arranged on the end surface of the support frame 1 located above the spherical tank 10 .

[0080] In the present invention, the support frame 1 can have various structural forms, and can serve as a carrier of the monitoring unit, the water spraying unit and the control unit.

[0081] The following examples further illustrate the explosion-proof and heat-insulating system for spherical tanks of the utility model. The examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples.

[0082] Example 1

[0083] Taking the spherical tank as a liquefied hydrocarbon spherical tank as an example, the spherical tank explosion-proof and heat-insulating system of the utility model is implemented, such as Figure 1-2 As shown, the spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit;

[0084] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank 10;

[0085] The monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6;

[0086] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through the support frame 1;

[0087] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10;

[0088] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1 .

[0089] In actual application, when the shock wave of the combustible vapor cloud explosion acts on the pressure measuring device, the pressure measuring device quickly measures the intensity of the shock wave at this time and compares it with the set safety value. When the safety value is exceeded, the control unit quickly controls several sprinkler heads to spray water, thereby forming a high-intensity water curtain around and above the liquefied hydrocarbon spherical tank to block the impact of the shock wave on the liquefied hydrocarbon spherical tank.

[0090] After testing, it is found that the spherical tank explosion-proof and heat-insulating system described in the utility model can effectively block the impact of the shock wave on the liquefied hydrocarbon spherical tank when a cloud explosion occurs in the combustible vapor, thereby ensuring that the liquefied hydrocarbon spherical tank will not be destroyed, and further preventing the leakage of the combustible material inside it, causing a secondary explosion or even a chain domino effect.

[0091] Example 2

[0092] Taking the spherical tank as a liquefied hydrocarbon spherical tank as an example, the spherical tank explosion-proof and heat-insulating system of the utility model is implemented, such as Figure 1-2 As shown, the spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit;

[0093] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank 10;

[0094] The monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6;

[0095] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through the support frame 1;

[0096] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10;

[0097] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1;

[0098] The water spray unit includes a water spray head 2 and a water supply pipe 3 connected to the water spray head 2;

[0099] A plurality of the water spray heads 2 are installed around and above the spherical tank 10 through a support frame 1;

[0100] A plurality of the water spray heads 2 are installed at preset intervals on the end surface of the support frame 1 close to the spherical tank 10;

[0101] A plurality of the water spray heads 2 are mounted on the end surface of the support frame 1 close to the spherical tank 10 through a fixing frame 4;

[0102] The water supply pipe 3 is installed on the end surface of the support frame 1 close to the spherical tank 10.

[0103] In actual application, when the shock wave of the combustible vapor cloud explosion acts on the pressure measuring device, the pressure measuring device quickly measures the intensity of the shock wave at this time and compares it with the set safety value. When the safety value is exceeded, the control unit quickly controls several sprinkler heads to spray water, thereby forming a high-intensity water curtain around and above the liquefied hydrocarbon spherical tank to block the impact of the shock wave on the liquefied hydrocarbon spherical tank.

[0104] After testing, it is found that the spherical tank explosion-proof and heat-insulating system described in the utility model can effectively block the impact of the shock wave on the liquefied hydrocarbon spherical tank when a cloud explosion occurs in the combustible vapor, thereby ensuring that the liquefied hydrocarbon spherical tank will not be destroyed, and further preventing the leakage of the combustible material inside it, causing a secondary explosion or even a chain domino effect.

[0105] Example 3

[0106] Taking the spherical tank as a liquefied hydrocarbon spherical tank as an example, the spherical tank explosion-proof and heat-insulating system of the utility model is implemented, such as Figure 1-2 As shown, the spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit;

[0107] The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank 10, the water spraying unit is used to spray water around and above the spherical tank 10, and the control unit is used to control the water spraying unit to spray water around and above the spherical tank 10 and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank 10;

[0108] The monitoring unit includes a pressure measuring device 5 and a temperature measuring device 6;

[0109] The plurality of pressure measuring devices 5 and the temperature measuring devices 6 are installed around the spherical tank 10 through the support frame 1;

[0110] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed at preset intervals on the end surface of the support frame 1 away from the spherical tank 10;

[0111] A plurality of the pressure measuring devices 5 and the temperature measuring devices 6 are installed on the end surface of the support frame 1 away from the spherical tank 10 through threaded holes on the support frame 1;

[0112] The water spray unit includes a water spray head 2 and a water supply pipe 3 connected to the water spray head 2;

[0113] A plurality of the water spray heads 2 are installed around and above the spherical tank 10 through a support frame 1;

[0114] A plurality of the water spray heads 2 are installed at preset intervals on the end surface of the support frame 1 close to the spherical tank 10;

[0115] A plurality of the water spray heads 2 are mounted on the end surface of the support frame 1 close to the spherical tank 10 through a fixing frame 4;

[0116] The water supply pipe 3 is installed on the end surface of the support frame 1 close to the spherical tank 10;

[0117] The control unit includes a protective cover 8 and a controller 7 disposed inside the protective cover 8, and the controller 7 is electrically connected to the monitoring unit and the water supply unit through a signal line 9;

[0118] The interior of the support frame 1 is provided with a hollow portion;

[0119] The signal line 9 is arranged inside the support frame 1 and close to one side of the spherical tank 10;

[0120] The controller 7 is arranged on the end surface of the support frame 1 located above the spherical tank 10 .

[0121] In actual application, when the shock wave of the combustible vapor cloud explosion acts on the pressure measuring device, the pressure measuring device quickly measures the intensity of the shock wave at this time and compares it with the set safety value. When the safety value is exceeded, the control unit quickly controls several sprinkler heads to spray water, thereby forming a high-intensity water curtain around and above the liquefied hydrocarbon spherical tank to block the impact of the shock wave on the liquefied hydrocarbon spherical tank.

[0122] After testing, it is found that the spherical tank explosion-proof and heat-insulating system described in the utility model can effectively block the impact of the shock wave on the liquefied hydrocarbon spherical tank when a cloud explosion occurs in the combustible vapor, thereby ensuring that the liquefied hydrocarbon spherical tank will not be destroyed, and further preventing the leakage of the combustible material inside it, causing a secondary explosion or even a chain domino effect.

[0123] Example 4

[0124] Refer to Example 3 for implementation. The difference is that in actual application, when a fire occurs and the flame acts on the temperature measuring device, the temperature measuring device quickly measures the intensity of the high-temperature flame at this time and compares it with the set safety value. When the safety value is exceeded, the control unit quickly controls several sprinkler heads to spray water, thereby forming a high-intensity water curtain around and above the liquefied hydrocarbon spherical tank to prevent the high-temperature flame from acting on the liquefied hydrocarbon spherical tank for a long time.

[0125] After testing, it is found that the spherical tank explosion-proof and heat-insulating system described in the utility model can effectively prevent high-temperature flames from acting on the liquefied hydrocarbon spherical tank for a long time when a fire occurs, thereby ensuring that the liquefied hydrocarbon spherical tank will not be destroyed, and further preventing the leakage of combustible materials inside it, causing secondary explosions and even chain domino effects.

[0126] Example 5

[0127] Refer to Example 3 for implementation. The difference is that in actual application, when the shock wave of the combustible vapor cloud explosion acts on the pressure measuring device, and when the high-temperature flame acts on the temperature measuring device, the pressure measuring device quickly measures the intensity of the shock wave at this time and compares it with the set safety value, and the temperature measuring device quickly measures the intensity of the high-temperature flame at this time and compares it with the set safety value. When any value of the two exceeds the safety value, the control unit quickly controls a plurality of sprinkler heads to spray water, thereby forming a high-intensity water curtain around and above the liquefied hydrocarbon spherical tank to block the impact of the shock wave on the liquefied hydrocarbon spherical tank, and block the high-temperature flame from acting on the liquefied hydrocarbon spherical tank for a long time.

[0128] After testing, it was found that the spherical tank explosion-proof and heat-insulating system described in the utility model can effectively block the impact of shock waves on the liquefied hydrocarbon spherical tank when a cloud explosion of combustible vapor occurs or a fire occurs, and prevent high-temperature flames from acting on the liquefied hydrocarbon spherical tank for a long time, thereby ensuring that the liquefied hydrocarbon spherical tank will not be destroyed, thereby preventing the leakage of combustible materials inside it, causing secondary explosions and even a chain domino effect.

[0129] The spherical tank explosion-proof and heat-insulating system provided by the utility model can form a high-strength water curtain around and above the spherical tank through the joint action of the monitoring unit, the water spray unit and the control unit, so as to prevent the flammable vapor cloud explosion and / or flame heat radiation from directly acting on the spherical tank for a long time, causing damage to the spherical tank, and then causing the flammable material inside the spherical tank to leak, resulting in secondary explosion and even a chain domino effect.

[0130] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A spherical tank explosion-proof and heat-insulating system, characterized in that: The spherical tank explosion-proof and heat-insulating system includes a monitoring unit, a water spray unit and a control unit; The monitoring unit is used to monitor whether overpressure and / or overtemperature occurs around the spherical tank (10), the water spraying unit is used to spray water around and above the spherical tank (10), and the control unit is used to control the water spraying unit to spray water around and above the spherical tank (10) and form an isolation water curtain when the monitoring unit detects that overpressure and / or overtemperature occurs around the spherical tank (10); The monitoring unit comprises a pressure measuring device (5) and a temperature measuring device (6); A plurality of the pressure measuring devices (5) and the temperature measuring devices (6) are installed around the spherical tank (10) via a support frame (1); A plurality of the pressure measuring devices (5) and the temperature measuring devices (6) are installed at preset intervals on the end surface of the support frame (1) away from the spherical tank (10).

2. The spherical tank explosion-proof and heat-insulating system according to claim 1 is characterized in that: The plurality of pressure measuring devices (5) and the temperature measuring devices (6) are installed on the end surface of the support frame (1) away from the spherical tank (10) through threaded holes on the support frame (1).

3. The spherical tank explosion-proof and heat-insulating system according to claim 1 or 2, characterized in that: The water spray unit comprises a water spray head (2) and a water supply pipe (3) connected to the water spray head (2).

4. The spherical tank explosion-proof and heat-insulating system according to claim 3 is characterized in that: A plurality of the water spray heads (2) are installed around and above the spherical tank (10) via a support frame (1).

5. The spherical tank explosion-proof and heat-insulating system according to claim 4 is characterized in that: A plurality of the water spray heads (2) are installed at preset intervals on the end surface of the support frame (1) close to the spherical tank (10).

6. The spherical tank explosion-proof and heat-insulating system according to claim 5 is characterized in that: A plurality of the water spray heads (2) are mounted on the end surface of the support frame (1) close to the spherical tank (10) via a fixing frame (4).

7. The spherical tank explosion-proof and heat-insulating system according to claim 4 is characterized in that: The water supply pipe (3) is installed on the end surface of the support frame (1) close to the spherical tank (10).

8. The spherical tank explosion-proof and heat-insulating system according to claim 1 is characterized in that: The control unit comprises a protective cover (8) and a controller (7) arranged inside the protective cover (8); the controller (7) is electrically connected to the monitoring unit and the water spraying unit via a signal line (9).

9. The spherical tank explosion-proof and heat-insulating system according to claim 8 is characterized in that: The support frame (1) is provided with a hollow interior.

10. The spherical tank explosion-proof and heat-insulating system according to claim 9 is characterized in that: The signal line (9) is arranged inside the support frame (1) and close to one side of the spherical tank (10).

11. The spherical tank explosion-proof and heat-insulating system according to claim 8, characterized in that: The controller (7) is arranged on the end surface of the support frame (1) located above the spherical tank (10).

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