Ship-shore interface safety device, ship oil gas recovery system and use method

Abstract

The invention relates to a ship-shore interface safety device, a ship oil gas recovery system and a use method. The ship-shore interface safety device comprises a gas inlet unit, a gas-liquid separation unit, a bidirectional anti-explosion unit, a gas outlet unit, a gas exhaust unit, an inert gas conveying unit and an oxygen content detection unit. The gas inlet unit is detachably connected with a cabin oil and gas pipeline; the gas-liquid separation unit is arranged at the downstream of the gas inlet unit; the bidirectional explosion-proof unit is arranged at the downstream of the gas-liquid separation unit; the air outlet unit is arranged at the downstream of the bidirectional explosion-proof unit; the exhaust unit is arranged between the gas inlet unit and the gas-liquid separation unit; the inert gas conveying unit is respectively communicated with the gas inlet unit and the gas-liquid separation unit; the oxygen content detection unit is respectively communicated with the gas inlet unit and the gas outlet unit. The system has the advantages that the oxygen content detection unit capable of being automatically closed is arranged, so that the later maintenance cost is reduced; and the inert gas conveying unit is arranged to purge the gas-liquid separation unit, so that the later maintenance cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of ship oil and gas recovery, and in particular to a ship-shore interface safety device, a ship oil and gas recovery system and a use method thereof. Background Art

[0002] In order to protect the safety of ships, docks and oil and gas recovery equipment, a set of dock oil and gas recovery ship-shore safety interface is set up in the dock loading and unloading area. When the ship docks, the external interface of the ship's oil and gas recovery is connected to the ship-shore safety interface through a pipeline and then enters the dock gas collection main pipe to transport the oil and gas to the oil and gas recovery device for recovery and treatment. Oil and gas are mixed with other gases (even oxygen), and their concentration may be within the explosion limit. Therefore, the safety requirements of the gas phase pipeline should be higher than those of the liquid phase pipeline. Oil and gas are highly dangerous substances, and the combustion or explosion of oil and gas spreads extremely quickly. The ship-shore docking safety module can block possible and existing explosions and combustions in the first time to prevent accidents on the ship side or the shore side from spreading to the other end.

[0003] The ship-shore interface safety device is a special device installed at the front of the dock to protect the safety of ships and equipment on board during oil and gas recovery operations on liquid cargo ships, as well as to protect the safety of operations of oil and gas processing units on shore. Its front end (air inlet end) is connected to a gas transmission arm or hose, and the end (air outlet end) is connected to the gas transmission pipeline network.

[0004] Since the ship-shore interface device is used at the dock and the cargoes loaded and unloaded are all flammable and explosive gases, the higher the accuracy of monitoring the oxygen content in the gas, the better, so as to avoid the occurrence of fire and explosion. However, the existing ship-shore interface devices are unable to monitor the gas, increasing the possibility of accidents.

[0005] The ship-shore safety interface is required to be equipped with reliable and complete safety equipment to protect the safety of personnel and equipment; the ship-shore safety interface should be equipped with lightning protection, anti-static and other facilities; the ship-shore safety interface should be equipped with two oxygen content sensors, which should have the function of real-time output detection data and provide signals to the ship-shore safety interface control system. One of them is installed on the main pipeline between the air inlet end of the ship-shore safety interface and the inert gas inlet pipe, and should not be more than 6m away from the air inlet end of the ship-shore safety interface, to detect the oxygen content of oil and gas in the cabin; the other oxygen content sensor is installed before the outlet end of the main pipeline of the ship-shore safety interface to check the oxygen content of oil and gas in the main pipeline after inert gas supplementation; the ship-shore safety interface should arrange an exhaust pipe between the air inlet pressure sensor and the cut-off valve, and a pressure / vacuum release valve and an electric unloading valve should be set at the top of the exhaust pipe.

[0006] At present, no effective solution has been proposed for the problems existing in the relevant technologies, such as the inert gas pipeline having no pressure regulating device, the gas-liquid separation element having no cleaning device, and the oxygen content sensor being easily damaged. Summary of the invention

[0007] The purpose of the present invention is to provide a ship-shore interface safety device, a ship oil and gas recovery system and a method of use in view of the deficiencies in the prior art, so as to solve the problems existing in the related art, such as the inert gas pipeline has no pressure regulating device, the gas-liquid separation element has no cleaning device, and the oxygen content sensor is easy to be damaged.

[0008] To achieve the above object, the technical solution adopted by the present invention is:

[0009] In a first aspect, a ship-shore interface safety device is provided, comprising:

[0010] An air intake unit, which is detachably connected to the oil and gas pipeline in the cabin and is used to input oil and gas into the ship-shore interface safety device;

[0011] A gas-liquid separation unit, which is arranged downstream of the air intake unit and is used for performing gas-liquid separation on the oil and gas;

[0012] A two-way explosion-proof unit, which is arranged downstream of the gas-liquid separation unit and is used to prevent the detonation combustion of the flame;

[0013] An air outlet unit, which is arranged downstream of the two-way explosion-proof unit and is used to transport oil and gas to an oil and gas recovery device;

[0014] An exhaust unit, the exhaust unit being arranged between the air intake unit and the gas-liquid separation unit, and being used for emergency pressure relief when the pressure of the ship-shore interface safety device is higher or lower than a safety value;

[0015] an inert gas delivery unit, the inert gas delivery unit being in communication with the air intake unit and the gas-liquid separation unit, respectively, and being used for delivering inert gas to the air intake unit and the gas-liquid separation unit, respectively, so as to reduce the oxygen content of the ship-shore interface safety device;

[0016] An oxygen content detection unit is connected to the air inlet unit and the air outlet unit respectively, and is used to detect the oxygen content of the oil and gas pipeline in the cabin and the oxygen content of the oil and gas after being processed by the gas-liquid separation unit.

[0017] In some embodiments, the air intake unit comprises:

[0018] An air intake pipeline component, which is respectively connected to the oil and gas pipeline of the cabin, the gas-liquid separation unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit, and is used to input oil and gas to the ship-shore interface safety device;

[0019] a first control valve element, the first control valve element being arranged on the air intake pipe element and being used for controlling the opening and closing of the air intake pipe element;

[0020] A first check element is provided on the air intake pipe element and is located downstream of the first control valve element, and is used to prevent the oil and gas entering the air intake pipe element from flowing back.

[0021] In some of the embodiments, the air intake unit further comprises:

[0022] A first flange element is provided at the air inlet end of the air inlet duct element for insulation.

[0023] In some of the embodiments, the air intake unit further comprises:

[0024] A first pressure detection element is communicated with the intake duct element and is located upstream of a communication position between the intake duct element and the exhaust unit, and is used to detect an internal pressure of the intake duct element.

[0025] In some of the embodiments, the air intake unit further comprises:

[0026] A second pressure detection element is connected to the air intake pipe element and is located downstream of the connection position between the air intake pipe element and the exhaust unit, and is used to detect the pressure of the oil and gas entering the gas-liquid separation unit.

[0027] In some of the embodiments, the air intake unit further comprises:

[0028] At least one third pressure detection element is connected to the air intake duct element and is located upstream of the connection position between the air intake duct element and the exhaust unit, and is used to detect the pressure difference inside the air intake duct element.

[0029] In some embodiments, the gas-liquid separation unit comprises:

[0030] A gas-liquid separation element is arranged downstream of the air intake unit and is respectively connected to the air intake unit, the two-way explosion-proof unit and the inert gas delivery unit for gas-liquid separation of oil and gas.

[0031] In some of the embodiments, the gas-liquid separation unit further comprises:

[0032] A first emergency control valve element is provided at the air inlet end of the gas-liquid separation element and is used to prevent oil and gas from entering the gas-liquid separation element in an emergency.

[0033] In some of the embodiments, the gas-liquid separation unit further comprises:

[0034] A liquid level detection element is connected to the gas-liquid separation element and is used to detect the liquid level height of the gas-liquid separation element.

[0035] In some embodiments, the bidirectional explosion-proof unit includes:

[0036] A two-way explosion-proof element is arranged downstream of the gas-liquid separation unit and is respectively connected to the gas-liquid separation unit and the gas outlet unit to prevent the detonation combustion of the flame.

[0037] In some of the embodiments, the bidirectional explosion-proof unit further comprises:

[0038] At least one temperature detection element is connected to the two-way explosion-proof element and is used to detect the temperature of the two-way explosion-proof element.

[0039] In some embodiments, the gas outlet unit includes:

[0040] An air outlet pipeline component is arranged downstream of the two-way explosion-proof unit and is respectively connected to the two-way explosion-proof unit and the oxygen content detection unit, and is used to transport gas to the oil and gas recovery device.

[0041] In some of the embodiments, the gas outlet unit further comprises:

[0042] A second flange element, wherein the second flange element is arranged at the gas outlet end of the gas outlet pipeline element and is connected to the oil gas recovery device.

[0043] In some of the embodiments, the gas outlet unit further comprises:

[0044] A flow detection element is connected to the gas outlet pipeline element and is used to detect the flow of oil and gas entering the oil and gas recovery device.

[0045] In some of the embodiments, the exhaust unit comprises:

[0046] a first exhaust pipe element, which is disposed between the air intake unit and the gas-liquid separation unit and is in communication with the air intake unit, and is used for emergency pressure relief when the pressure of the ship-shore interface safety device is higher or lower than a safety value;

[0047] A pressure release element is arranged on the first exhaust pipe element and is used for emergency opening when the oil and gas oxygen content of the air intake unit reaches an explosion limit or the pressure exceeds a limit.

[0048] In some of the embodiments, the exhaust unit further comprises:

[0049] a second exhaust duct element in communication with the first exhaust duct element;

[0050] a second emergency control valve element, the second emergency control valve element being arranged in the second exhaust pipe element and being used for emergency opening in case that the oil and gas oxygen content of the ship-shore interface safety device reaches an explosion limit or the pressure exceeds a limit;

[0051] A flame arrester element is arranged at the exhaust end of the second exhaust duct element and is used to prevent the detonation combustion of the flame.

[0052] In some of the embodiments, the inert gas delivery unit comprises:

[0053] a first inert gas pipeline element, the first inert gas pipeline element being in communication with the air inlet unit and being used for providing inert gas to the ship-shore interface safety device;

[0054] a second control valve element, the second control valve element being disposed on the first inert gas pipeline element and being used to control the opening or closing of the first inert gas pipeline element;

[0055] a second check element, which is disposed on the first inert gas pipeline element and is located downstream of the second control valve element, and is used to prevent the gas entering the first inert gas pipeline element from flowing back;

[0056] a third control valve element, the third control valve element being disposed on the first inert gas pipeline element and being located downstream of the second check element, and being used for connecting or closing the first inert gas pipeline element and the air inlet unit;

[0057] a second inert gas pipeline element, the second inert gas pipeline element being in communication with the first inert gas pipeline element and the gas-liquid separation unit, and being located downstream of the second check element, and being used for conveying inert gas to the gas-liquid separation unit for purging;

[0058] A fourth control valve element, wherein the fourth control valve element is disposed on the second inert gas pipeline element and is used to open or close the second inert gas pipeline element.

[0059] In some of the embodiments, the inert gas delivery unit further comprises:

[0060] The regulating element is arranged on the first inert gas pipeline element and is located downstream of the second check element and upstream of the third control valve element, and is used for regulating the internal pressure of the first inert gas pipeline element.

[0061] In some of the embodiments, the inert gas delivery unit further comprises:

[0062] A pressure reducing element is disposed on the first inert gas pipeline element and is located downstream of the second check element and upstream of the third control valve element for reducing pressure.

[0063] In some embodiments, the oxygen content detection unit includes:

[0064] a first oxygen content detection element, the first oxygen content detection element is connected to the air intake unit and is used to detect the oxygen content of the oil and gas pipeline in the cabin;

[0065] A second oxygen content detection element is connected to the gas outlet unit and is used to detect the oxygen content of the oil gas after being processed by the gas-liquid separation unit.

[0066] In some of the embodiments, it also includes:

[0067] A liquid discharge unit is communicated with the gas-liquid separation unit and is used for discharging liquid in the gas-liquid separation unit.

[0068] In some embodiments, the drainage unit comprises:

[0069] a liquid discharge pipe element, the liquid discharge pipe element being in communication with the gas-liquid separation unit and being used for discharging liquid in the gas-liquid separation unit;

[0070] A fifth control valve element, wherein the fifth control valve element is arranged on the liquid discharge pipe element and is used for closing or opening the liquid discharge pipe element.

[0071] In some of the embodiments, it also includes:

[0072] A control unit is communicatively connected with the air intake unit, the gas-liquid separation unit, the two-way explosion-proof unit, the air outlet unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit.

[0073] In some embodiments, the control unit includes:

[0074] A control element is respectively connected to the air intake unit, the gas-liquid separation unit, the two-way explosion-proof unit, the air outlet unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit for communication.

[0075] In some embodiments, the control unit further comprises:

[0076] An alarm element is communicatively connected with the control element and is used for issuing an alarm.

[0077] In some embodiments, the control unit further comprises:

[0078] A protection element is provided to cover the control element for protection.

[0079] In some of the embodiments, it also includes:

[0080] The installation unit is arranged on a horizontal plane and is used for installing the air intake unit, the gas-liquid separation unit, the two-way explosion-proof unit, the air outlet unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit.

[0081] In some of the embodiments, the mounting unit comprises:

[0082] A pry frame element, wherein the pry frame element is disposed on a horizontal plane;

[0083] A plurality of support elements, wherein the plurality of support elements are respectively arranged on the upper part of the skid frame element and are respectively connected to the air inlet unit and the air outlet unit;

[0084] A plurality of connecting elements are respectively connected to the air inlet unit, the air outlet unit and the corresponding support element.

[0085] In a second aspect, a ship oil gas recovery system is provided, comprising:

[0086] The ship-shore interface safety device as described in the first aspect.

[0087] In a third aspect, a method for using a ship-shore safety device is provided, which is applied to the ship-shore interface safety device as described in the first aspect or the ship oil vapor recovery system as described in the second aspect, comprising:

[0088] The oxygen content detection unit detects the oxygen content of the oil and gas in the air inlet unit and the oil and gas in the air outlet unit respectively;

[0089] When the oxygen content reaches a first oxygen content threshold, generating a first alarm signal;

[0090] When the oxygen content reaches a second oxygen content threshold, generating an inert gas input signal;

[0091] According to the inert gas input signal, the inert gas delivery unit delivers the inert gas to the gas inlet unit and / or the gas-liquid separation unit;

[0092] When the oxygen content does not reach the second oxygen content threshold, an inert gas stop signal is generated;

[0093] According to the inert gas stop signal, the inert gas delivery unit stops delivering the inert gas to the gas intake unit and / or the gas-liquid separation unit;

[0094] When the oxygen content reaches a third oxygen content threshold, generating a second alarm signal and a first stop signal;

[0095] According to the first stop signal, stopping the oil and gas transportation work;

[0096] Among them, the third oxygen content threshold>the second oxygen content threshold>the first oxygen content threshold.

[0097] In some of the embodiments, it also includes:

[0098] The first oxygen content detection element detects the oxygen content of the intake pipe element to obtain a first oxygen content;

[0099] generating a first alarm signal when the first oxygen content reaches a first oxygen content threshold;

[0100] generating an inert gas input signal when the first oxygen content reaches a second oxygen content threshold;

[0101] The first inert gas conduit element delivers inert gas to the air inlet conduit element according to the inert gas input signal;

[0102] generating an inert gas stop signal when the first oxygen content does not reach the second oxygen content threshold;

[0103] According to the inert gas stop signal, the first inert gas pipeline element stops delivering the inert gas to the intake pipeline element; when the first oxygen content reaches a third oxygen content threshold, a second alarm signal and a first stop signal are generated;

[0104] According to the first stop signal, the oil and gas transportation work is stopped.

[0105] In some of the embodiments, it also includes:

[0106] The second oxygen content detection element detects the oxygen content of the outlet pipeline element to obtain a second oxygen content;

[0107] generating a first alarm signal when the second oxygen content reaches the first oxygen content threshold;

[0108] generating an inert gas input signal when the second oxygen content reaches a second oxygen content threshold;

[0109] According to the inert gas input signal, the second inert gas pipeline element delivers the inert gas to the gas-liquid separation element;

[0110] generating an inert gas stop signal when the second oxygen content does not reach the second oxygen content threshold;

[0111] According to the inert gas stop signal, the second inert gas pipeline element stops delivering the inert gas to the gas-liquid separation element; when the second oxygen content reaches a third oxygen content threshold, a second alarm signal and a first stop signal are generated;

[0112] According to the first stop signal, the oil and gas transportation work is stopped.

[0113] In some of the embodiments, it also includes:

[0114] Get the gas pressure of the air inlet unit;

[0115] When the gas pressure reaches a first preset pressure threshold, generating a third alarm signal;

[0116] When the gas pressure reaches a second preset pressure threshold, generating a second stop signal and an exhaust signal;

[0117] stopping the gas-liquid separation unit according to the second stop signal;

[0118] According to the exhaust signal, the exhaust unit is started to exhaust;

[0119] Among them, the second preset pressure threshold>the first preset pressure threshold.

[0120] In some of the embodiments, it also includes:

[0121] acquiring a first gas pressure of an intake pipe element;

[0122] generating a third alarm signal when the first gas pressure reaches a first preset pressure threshold;

[0123] When the first gas pressure reaches a second preset pressure threshold, generating a second stop signal and an exhaust signal;

[0124] closing the first emergency control valve element according to the second stop signal;

[0125] activating a pressure release element according to the exhaust signal;

[0126] Among them, the second preset pressure threshold>the first preset pressure threshold.

[0127] In some of the embodiments, it also includes:

[0128] Get the gas pressure of the air inlet unit;

[0129] When the gas pressure reaches a third preset pressure threshold, generating a fourth alarm signal;

[0130] When the gas pressure reaches a fourth preset pressure threshold, generating a third stop signal;

[0131] stopping the gas-liquid separation unit according to the third stop signal;

[0132] The fourth preset pressure threshold is less than the third preset pressure threshold.

[0133] In some of the embodiments, including:

[0134] obtaining a second gas pressure of the intake duct component;

[0135] generating a fourth alarm signal when the second gas pressure reaches a third preset pressure threshold;

[0136] generating a third stop signal when the second gas pressure reaches a fourth preset pressure threshold;

[0137] closing the first emergency control valve element according to the third stop signal;

[0138] The fourth preset pressure threshold is less than the third preset pressure threshold.

[0139] The present invention adopts the above technical solution, and has the following technical effects compared with the prior art:

[0140] The present invention provides a ship-shore interface safety device, a ship oil and gas recovery system and a method of use.

[0141] The advantages of the present invention are:

[0142] (1) By providing an oxygen content detection unit that can be closed automatically, the oxygen content detection unit can be prevented from being damaged due to excessive pressure, thereby reducing the subsequent maintenance cost;

[0143] (2) By connecting the inert gas delivery unit and the gas-liquid separation unit, the gas-liquid separation unit can be purged, saving the subsequent maintenance cost;

[0144] (3) By setting an adjustment element on the inert gas delivery unit, later debugging is convenient, debugging time is saved, and labor costs are reduced;

[0145] (4) By setting up an oil-gas separation unit with a power-off shutdown function, safety protection is provided for the personal safety of workers and the safety of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0146] Figure 1 is a schematic diagram of a ship-shore interface safety device according to an embodiment of the present invention (I);

[0147] Figure 2 is a schematic diagram of an air intake unit according to an embodiment of the present invention;

[0148] Figure 3 is a schematic diagram of a gas-liquid separation unit according to an embodiment of the present invention;

[0149] Figure 4 is a schematic diagram of a bidirectional explosion-proof unit according to an embodiment of the present invention;

[0150] Figure 5 is a schematic diagram of an air outlet unit according to an embodiment of the present invention;

[0151] Figure 6 is a schematic diagram of an exhaust unit according to an embodiment of the present invention;

[0152] Figure 7 is a schematic diagram of an inert gas delivery unit according to an embodiment of the present invention;

[0153] Figure 8 is a schematic diagram of an oxygen content detection unit according to an embodiment of the present invention;

[0154] Fig. 9 is a schematic diagram of a ship-shore interface safety device according to an embodiment of the present invention (II);

[0155] Fig.10 is a schematic diagram of a ship-shore interface safety device according to an embodiment of the present invention (III);

[0156] Fig.11 is a schematic diagram of a ship-shore interface safety device according to an embodiment of the present invention (III);

[0157] Fig.12 is a schematic diagram of a liquid discharge unit according to an embodiment of the present invention;

[0158] Fig.13 is a schematic diagram of a control unit according to an embodiment of the present invention;

[0159] Fig.14 is a schematic diagram of a mounting unit according to an embodiment of the present invention.

[0160] The reference numerals are: 10, air intake unit; 11, air intake pipe component; 12, first control valve component; 13, first check component; 14, first flange component; 15, first pressure detection component; 16, second pressure detection component; 17, third pressure detection component;

[0161] 20. Gas-liquid separation unit; 21. Gas-liquid separation element; 22. First emergency control valve element; 23. Liquid level detection element;

[0162] 30. Two-way explosion-proof unit; 31. Two-way explosion-proof element; 32. Temperature detection element;

[0163] 40. Air outlet unit; 41. Air outlet pipe component; 42. Second flange component; 43. Flow detection component;

[0164] 50. Exhaust unit; 51. First exhaust pipe component; 52. Pressure release component; 53. Second exhaust pipe component; 54. Second emergency control valve component; 55. Fire arrester component;

[0165] 60. Inert gas delivery unit; 61. First inert gas pipeline component; 62. Second control valve component; 63. Second check component; 64. Third control valve component; 65. Second inert gas pipeline component; 66. Fourth control valve component; 67. Adjustment component; 68. Pressure reducing component;

[0166] 70. oxygen content detection unit; 71. first oxygen content detection element; 72. second oxygen content detection element;

[0167] 80. Liquid discharge unit; 81. Liquid discharge pipeline component; 82. Fifth control valve component;

[0168] 90. control unit; 91. control element; 92. alarm element; 93. protection element;

[0169] 100, mounting unit; 101, pry frame component; 102, bracket component; 103, connecting component. DETAILED DESCRIPTION

[0170] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0171] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0172] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0173] Example 1

[0174] This embodiment relates to the ship-shore interface safety device of the present invention.

[0175] An exemplary embodiment of the present invention is as follows Figure 1 As shown, a ship-shore interface safety device includes an air intake unit 10, a gas-liquid separation unit 20, a two-way explosion-proof unit 30, an air outlet unit 40, an exhaust unit 50, an inert gas delivery unit 60 and an oxygen content detection unit 70. Among them, the air intake unit 10 is detachably connected to the oil and gas pipeline in the ship's cabin, and is used to input oil and gas to the ship-shore interface safety device; the gas-liquid separation unit 20 is arranged downstream of the air intake unit 10, and is used to separate the oil and gas into gas and liquid; the two-way explosion-proof unit 30 is arranged downstream of the gas-liquid separation unit 20, and is used to prevent the detonation combustion of the flame; the air outlet unit 40 is arranged downstream of the two-way explosion-proof unit 30, and is used to transport oil and gas to the oil and gas recovery device; the exhaust unit 50 is arranged between the air intake unit 10 and the gas-liquid separation unit 20, and is used to perform emergency pressure relief when the pressure of the ship-shore interface safety device is higher or lower than the safety value; the inert gas delivery unit 60 is respectively connected to the air intake unit 10 and the gas-liquid separation unit 20, and is used to deliver inert gas to the air intake unit 10 and the gas-liquid separation unit 20 respectively to reduce the oxygen content of the ship-shore interface safety device; the oxygen content detection unit 70 is respectively connected to the air intake unit 10 and the air outlet unit 40, and is used to detect the oxygen content of the oil and gas pipeline in the ship's cabin and the oxygen content of the oil and gas after being treated by the gas-liquid separation unit 20.

[0176] like Figure 2 As shown, the air intake unit 10 includes an air intake pipeline component 11, a first control valve component 12 and a first check element 13. The air intake pipeline component 11 is respectively connected with the oil and gas pipeline of the cabin, the gas-liquid separation unit 20, the exhaust unit 50, the inert gas delivery unit 60 and the oxygen content detection unit 70, and is used to input oil and gas to the ship-shore interface safety device; the first control valve component 12 is arranged on the air intake pipeline component 11, and is used to control the opening and closing of the air intake pipeline component 11; the first check element 13 is arranged on the air intake pipeline component 11, and is located downstream of the first control valve component 12, and is used to prevent the oil and gas entering the air intake pipeline component 11 from flowing back;

[0177] The first control valve element 12 meets the requirements of GB / T 12235-2007 (national standard "Steel stop valves and lift check valves for petroleum, petrochemical and related industries").

[0178] In some of the embodiments, the first control valve element 12 is a general manual valve made of petrochemical steel.

[0179] The first check element 13 meets the requirements of GB / T 12235-2007 (national standard "Steel stop valves and lift check valves for petroleum, petrochemical and related industries").

[0180] In some of the embodiments, the first check element 13 is a general check valve made of petrochemical steel.

[0181] Furthermore, the air intake unit 10 further comprises a first flange element 14. The first flange element 14 is arranged at the air intake end of the air intake pipe element 11 and connected to the oil and gas pipeline of the cabin for insulation.

[0182] In some of the embodiments, the first flange element 14 includes an insulating gasket, an insulating sleeve and bolts.

[0183] In some of the embodiments, the first flange element 14 is an insulating flange.

[0184] Furthermore, the air intake unit 10 further includes a first pressure detection element 15 , which is connected to the air intake duct element 11 and is located upstream of the connection position between the air intake duct element 11 and the exhaust unit 50 , and is used to detect the internal pressure of the air intake duct element 11 .

[0185] The first pressure detection element 15 meets the requirements of GBT 15478 (national standard “Pressure sensor performance test method”).

[0186] In some of the embodiments, the measuring range of the first pressure detecting element 15 is -10 kPa to 100 kPa.

[0187] In some of the embodiments, the accuracy of the first pressure sensing element 15 is 0.1%.

[0188] In some of the embodiments, the explosion-proof grade of the first pressure detection element 15 is Ex dⅡCT4, and the protection grade is IP67.

[0189] In some of the embodiments, the first pressure detection element 15 is a first pressure transmitter.

[0190] Furthermore, the air intake unit 10 further includes a second pressure detection element 16. The second pressure detection element 16 is connected to the air intake pipe element 11 and is located downstream of the connection position between the air intake pipe element 11 and the exhaust unit 50, and is used to detect the pressure of the oil and gas entering the gas-liquid separation unit 20.

[0191] The second pressure detection element 16 meets the requirements of GBT 15478 (national standard “Pressure sensor performance test method”).

[0192] In some of the embodiments, the measuring range of the second pressure detecting element 16 is -10 kPa to 100 kPa.

[0193] In some of the embodiments, the accuracy of the second pressure sensing element 16 is 0.1%.

[0194] In some of the embodiments, the explosion-proof grade of the second pressure detection element 16 is Ex dⅡCT4, and the protection grade is IP67.

[0195] In some of the embodiments, the second pressure detection element 16 is a pressure gauge.

[0196] Furthermore, the air intake unit 10 further includes at least one third pressure detection element 17. The third pressure detection element 17 is connected to the air intake duct element 11 and is located upstream of the connection position between the air intake duct element 11 and the exhaust unit 50, and is used to detect the pressure difference inside the air intake duct element 11.

[0197] In some embodiments, there are a plurality of third pressure detection elements 17. The plurality of third pressure detection elements 17 are arranged at intervals along the axial direction of the intake duct element 11. At least one third pressure detection element 17 is arranged upstream of the intake duct element 11, and at least one third pressure detection element 17 is arranged downstream of the intake duct element 11.

[0198] The third pressure detection element 17 meets the requirements of GBT 15478 (national standard “Pressure sensor performance test method”).

[0199] In some of the embodiments, the measuring range of the third pressure detecting element 17 is -10 kPa to 100 kPa.

[0200] In some of the embodiments, the accuracy of the third pressure sensing element 17 is 0.1%.

[0201] In some of the embodiments, the explosion-proof grade of the third pressure detection element 17 is Ex dⅡCT4, and the protection grade is IP67.

[0202] In some of the embodiments, the third pressure detection element 17 is a differential pressure transmitter.

[0203] like Figure 3 As shown, the gas-liquid separation unit 20 includes a gas-liquid separation element 21. The gas-liquid separation element 21 is disposed downstream of the air intake unit 10 and is respectively connected to the air intake unit 10, the two-way explosion-proof unit 30, and the inert gas delivery unit 60 for gas-liquid separation of oil and gas.

[0204] Specifically, the gas-liquid separation element 21 is in communication with the intake duct element 11 .

[0205] The design pressure of the gas-liquid separation element 21 is not less than 1.0 MPa (G).

[0206] In some of the embodiments, the gas-liquid separation element 21 is a gas-liquid separator with a filtering structure.

[0207] Furthermore, the gas-liquid separation unit 20 further includes a first emergency control valve element 22. The first emergency control valve element 22 is disposed at the gas inlet end of the gas-liquid separation element 21, and is used to prevent oil and gas from entering the gas-liquid separation element 21 in an emergency.

[0208] In some of the embodiments, the first emergency control valve element 22 is closed by remote control or manually.

[0209] The quality of the first emergency control valve element 22 meets the requirements of ISO 10497 ("Valve Tests—Valve Fire Resistance Test Requirements").

[0210] In some embodiments, the first emergency control valve element 22 is an electric butterfly valve.

[0211] Furthermore, the gas-liquid separation unit 20 further includes a liquid level detection element 23. The liquid level detection element 23 is in communication with the gas-liquid separation element 21 and is used to detect the liquid level height of the gas-liquid separation element 21.

[0212] In some of the embodiments, the liquid level detection element 23 is a magnetic flap liquid level gauge.

[0213] like Figure 4 As shown, the two-way explosion-proof unit 30 includes a two-way explosion-proof element 31. The two-way explosion-proof element 31 is arranged downstream of the gas-liquid separation unit 20 and is connected to the gas-liquid separation unit 20 and the gas outlet unit 40 respectively, so as to prevent the detonation combustion of the flame.

[0214] Specifically, the bidirectional explosion-proof element 31 is disposed downstream of the gas-liquid separation element 21 and is in communication with the gas-liquid separation element 21 .

[0215] The quality of the bidirectional explosion-proof element 31 meets the requirements of GB / T13347 (national standard "Petroleum Gas Pipeline Flame Arrester").

[0216] The performance test of the bidirectional explosion-proof element 31 meets the requirements of ISO16852.

[0217] In some of the embodiments, the bidirectional explosion-proof element 31 is a detonation flame arrester.

[0218] Furthermore, the two-way explosion-proof unit 30 further includes at least one temperature detection element 32 . The temperature detection element 32 is connected to the two-way explosion-proof element 31 and is used to detect the temperature of the two-way explosion-proof element 31 .

[0219] In some embodiments, there are two temperature detection elements 32 , one of which is disposed at the input end of the two-way explosion-proof element 31 , and the other is disposed at the output end of the two-way explosion-proof element 31 .

[0220] The temperature detection element 32 meets the requirements of GB / T 30825-2014 (national standard "Heat Treatment Temperature Measurement").

[0221] In some embodiments, the temperature detection element 32 has a measuring range of -50°C to 150°C.

[0222] In some embodiments, the accuracy of the temperature sensing element 32 is 0.1%.

[0223] In some of the embodiments, the explosion-proof grade of the temperature detection element 32 is Ex dⅡCT4, and the protection grade is IP67.

[0224] In some embodiments, the temperature detection element 32 is a temperature sensor.

[0225] like Figure 5 As shown, the gas outlet unit 40 includes a gas outlet pipeline element 41. The gas outlet pipeline element 41 is arranged downstream of the two-way explosion-proof unit 30, and is respectively connected to the two-way explosion-proof unit 30 and the oxygen content detection unit 70, for delivering gas to the oil and gas recovery device.

[0226] Specifically, the gas outlet pipe element 41 is in communication with the two-way explosion-proof element 31 .

[0227] Furthermore, the gas outlet unit 40 further includes a second flange element 42. The second flange element 42 is disposed at the gas outlet end of the gas outlet pipeline element 41 and is connected to the oil gas recovery device.

[0228] In some of the embodiments, the second flange element 42 includes an insulating gasket, an insulating sleeve, and bolts.

[0229] In some of the embodiments, the second flange element 42 is an insulating flange.

[0230] Furthermore, the gas outlet unit 40 further includes a flow detection element 43. The flow detection element 43 is communicated with the gas outlet pipeline element 41, and is used to detect the flow of oil and gas entering the oil and gas recovery device.

[0231] In some embodiments, the flow detection element 43 is a gas flow meter.

[0232] like Figure 6As shown, the exhaust unit 50 includes a first exhaust pipe element 51 and a pressure release element 52. The first exhaust pipe element 51 is arranged between the air intake unit 10 and the gas-liquid separation unit 20, and is connected to the air intake unit 10, and is used for emergency pressure relief when the pressure of the ship-shore interface safety device is higher or lower than the safety value; the pressure release element 52 is arranged on the first exhaust pipe element 51, and is used for emergency opening when the oil and gas oxygen content of the air intake unit 10 reaches the explosion limit or the pressure exceeds the limit.

[0233] Specifically, the first exhaust pipe element 51 is disposed between the intake pipe element 11 and the gas-liquid separation element 21 , and is communicated with the intake pipe element 11 .

[0234] During the process of the pressure release element 52 opening and closing when the set pressure is reached, the exhaust speed of the gas at the valve port is always not less than 30 m / s.

[0235] The quality of the pressure relief element 52 meets the requirements of GB / T 19699 (national standard "Pressure-vacuum valves and fire-blocking devices for liquid cargo tanks in ships and offshore technology").

[0236] In some of these embodiments, the pressure relief element 52 is a pressure / vacuum relief valve.

[0237] Furthermore, the exhaust unit 50 further includes a second exhaust pipe element 53, a second emergency control valve element 54 and a flame arrester element 55. The second exhaust pipe element 53 is connected to the first exhaust pipe element 51; the second emergency control valve element 54 is arranged on the second exhaust pipe element 53, and is used for emergency opening when the oil and gas oxygen content of the ship-shore interface safety device reaches the explosion limit or the pressure exceeds the limit; the flame arrester element 55 is arranged on the exhaust end of the second exhaust pipe element 53, and is used for preventing the detonation combustion of the flame.

[0238] The second exhaust duct element 53 is disposed in the middle of the first exhaust duct element 51 , and forms a T-shape with the first exhaust duct element 51 .

[0239] The second emergency control valve element 54 can be opened / closed remotely or manually.

[0240] In some of the embodiments, the explosion-proof grade of the second emergency control valve element 54 is Ex dⅡC T4.

[0241] In some embodiments, the protection grade of the second emergency control valve element 54 is IP65.

[0242] In some of the embodiments, the second emergency control valve element 54 is an emergency unloading valve.

[0243] In some of the embodiments, the flame arrester element 55 is a flame arrester cap.

[0244] like Figure 7 As shown, the inert gas delivery unit 60 includes a first inert gas pipeline element 61 , a second control valve element 62 , a second check element 63 , a third control valve element 64 , a second inert gas pipeline element 65 and a fourth control valve element 66 . Among them, the first inert gas pipeline element 61 is connected to the air intake unit 10, and is used to provide inert gas to the ship-shore interface safety device; the second control valve element 62 is arranged on the first inert gas pipeline element 61, and is used to control the opening or closing of the first inert gas pipeline element 61; the second check element 63 is arranged on the first inert gas pipeline element 61, and is located downstream of the second control valve element 62, and is used to prevent the gas entering the first inert gas pipeline element 61 from flowing back; the third control valve element 64 is arranged on the first inert gas pipeline element 61, and is located downstream of the second check element 63, and is used to connect or close the first inert gas pipeline element 61 and the air intake unit 10; the second inert gas pipeline element 65 is respectively connected to the first inert gas pipeline element 61 and the gas-liquid separation unit, and is located downstream of the second check element 63, and is used to transport inert gas to the gas-liquid separation unit 20 for purging; the fourth control valve element 66 is arranged on the second inert gas pipeline element 65, and is used to open or close the second inert gas pipeline element 65.

[0245] Specifically, the first inert gas pipeline element 61 is in communication with the air intake pipeline element 11 ; the second inert gas pipeline element 65 is in communication with the gas-liquid separation element 21 .

[0246] The diameter of the first inert gas conduit element 61 is 50 cm.

[0247] The second control valve element 62 meets the requirements of GB / T 12235-2007 (national standard "Steel stop valves and lift check valves for petroleum, petrochemical and related industries").

[0248] In some of the embodiments, the second control valve element 62 is a general manual valve made of petrochemical steel.

[0249] The second check element 63 meets the requirements of GB / T 12235-2007 (national standard "Steel stop valves and lift check valves for petroleum, petrochemical and related industries").

[0250] In some of the embodiments, the second check element 63 is a general check valve made of petrochemical steel.

[0251] The third control valve element 64 meets JB / T8528-1997 (Technical Requirements for Ordinary Electric Valve Devices).

[0252] The third control valve element 64 meets GB / T 13927-2022 (national standard "Industrial Valve Pressure Test").

[0253] The third control valve element 64 meets GB / T 12220-2015 (national standard "Industrial Valve Marking").

[0254] In some embodiments, the explosion-proof grade of the third control valve element 64 is Ex dⅡB T4, and the protection grade is IP65.

[0255] In some of the embodiments, the third control valve element 64 is a general electric regulating valve made of petrochemical steel.

[0256] The second inert gas pipeline component 65 is disposed in the middle of the first inert gas pipeline component 61 , and is disposed in a T-shape with the first inert gas pipeline component 61 .

[0257] The fourth control valve element 66 meets the requirements of GB / T 12235-2007 (national standard “Steel stop valves and lift check valves for petroleum, petrochemical and related industries”).

[0258] In some of the embodiments, the fourth control valve element 66 is a general manual valve made of petrochemical steel.

[0259] Furthermore, the inert gas delivery unit 60 further includes a regulating element 67 . The regulating element 67 is disposed in the first inert gas pipeline element 61 , and is located downstream of the second check element 63 and upstream of the third control valve element 64 , for regulating the internal pressure of the first inert gas pipeline element 61 .

[0260] The regulating element 67 meets JB / T8528-1997 (Technical Requirements for Ordinary Electric Valve Devices).

[0261] The regulating element 67 meets GB / T 13927-2022 (national standard "Industrial valve pressure test").

[0262] The regulating element 67 complies with GB / T 12220-2015 (national standard "Industrial Valve Marking").

[0263] In some of the embodiments, the explosion-proof grade of the regulating element 67 is Ex dⅡB T4, and the protection grade is IP65.

[0264] In some embodiments, the regulating element 67 is an electric regulating valve.

[0265] Furthermore, the inert gas delivery unit 60 further includes a pressure reducing element 68. The pressure reducing element 68 is disposed on the first inert gas pipeline element 61, and is located downstream of the second check element 63 and upstream of the third control valve element 64, for reducing pressure.

[0266] In some of the embodiments, the pressure reducing element 68 is a pressure reducing valve.

[0267] like Figure 8 As shown, the oxygen content detection unit 70 includes a first oxygen content detection element 71 and a second oxygen content detection element 72. The first oxygen content detection element 71 is connected to the air inlet unit 10 and is used to detect the oxygen content of the oil and gas pipeline in the cabin; the second oxygen content detection element 72 is connected to the air outlet unit 40 and is used to detect the oxygen content of the oil and gas after being processed by the gas-liquid separation unit 20.

[0268] Specifically, the first oxygen content detection element 71 is in communication with the intake pipe element 11 ; the second oxygen content detection element 72 is in communication with the outlet pipe element 41 .

[0269] In some of the embodiments, the first oxygen content detection element 71 is an oxygen content sensor.

[0270] In some of the embodiments, the second oxygen content detection element 72 is an oxygen content sensor.

[0271] Furthermore, the oxygen content detection unit 70 further includes a first opening and closing element and a second opening and closing element. The first opening and closing element is provided on the first oxygen content detection element 71, and is used to control the connection or closing of the first oxygen content detection element 71 and the air inlet pipe element 11; the second opening and closing element is provided on the second oxygen content detection element 72, and is used to control the connection or closing of the second oxygen content detection element 72 and the air outlet pipe element 41.

[0272] In some of the embodiments, the first opening and closing element is a flange valve.

[0273] In some of the embodiments, the second opening and closing element is a flange valve.

[0274] The advantages of the present invention are:

[0275] (1) By providing an oxygen content detection unit that can be closed automatically, the oxygen content detection unit can be prevented from being damaged due to excessive pressure, thereby reducing the subsequent maintenance cost;

[0276] (2) By connecting the inert gas delivery unit and the gas-liquid separation unit, the gas-liquid separation unit can be purged, saving the subsequent maintenance cost;

[0277] (3) By setting an adjustment element on the inert gas delivery unit, later debugging is convenient, debugging time is saved, and labor costs are reduced;

[0278] (4) By setting up an oil-gas separation unit with a power-off shutdown function, safety protection is provided for the personal safety of workers and the safety of equipment.

[0279] Example 2

[0280] This embodiment is a supplementary embodiment of Embodiment 1.

[0281] like Fig. 9 As shown, the ship-shore interface safety device further includes a liquid discharge unit 80. The liquid discharge unit 80 is communicated with the gas-liquid separation unit 20 and is used to discharge the liquid in the gas-liquid separation unit 20.

[0282] like Fig.10 As shown, the liquid discharge unit 80 includes a liquid discharge pipeline component 81 and a fifth control valve component 82. The liquid discharge pipeline component 81 is connected to the gas-liquid separation unit 20 and is used to discharge the liquid in the gas-liquid separation unit 20; the fifth control valve component 82 is arranged on the liquid discharge pipeline component 81 and is used to close or open the liquid discharge pipeline component 81.

[0283] Specifically, the liquid discharge pipe element 81 is in communication with the gas-liquid separation element 21 and is used for discharging the liquid in the gas-liquid separation element 21 .

[0284] In some of the embodiments, the drainage channel element 81 is a drainage pipe.

[0285] In some of the embodiments, the fifth control valve element 82 meets the requirements of GB / T 12235-2007 (national standard "Steel stop valves and lift check valves for petroleum, petrochemical and related industries").

[0286] In some of the embodiments, the fifth control valve element 82 is a general manual valve made of petrochemical steel.

[0287] Example 3

[0288] This embodiment is a supplementary embodiment of Embodiments 1 and 2.

[0289] like Fig.11 As shown, the ship-shore interface safety device further includes a control unit 90. The control unit 90 is respectively connected to the air intake unit 10, the gas-liquid separation unit 20, the two-way explosion-proof unit 30, the air outlet unit 40, the exhaust unit 50, the inert gas delivery unit 60, and the oxygen content detection unit 70 for communication.

[0290] like Fig.12As shown, the control unit 90 includes a control element 91. The control element 91 is respectively connected to the air intake unit 10, the gas-liquid separation unit 20, the two-way explosion-proof unit 30, the air outlet unit 40, the exhaust unit 50, the inert gas delivery unit 60, and the oxygen content detection unit 70 for communication.

[0291] Specifically, the control element 91 is respectively communicated with the first pressure detection element 15, the second pressure detection element 16, the third pressure detection element 17, the first emergency control valve element 22, the temperature detection element 32, the flow detection element 43, the second emergency control valve element 54, the third control valve element 64, the first oxygen content detection element 71, and the second oxygen content detection element 72.

[0292] In some of the embodiments, the control element 91 is a PLC control system.

[0293] Furthermore, the control unit 90 further includes an alarm element 92 and a protection element 93. The alarm element 92 is in communication with the control element 91 for issuing an alarm; the protection element 93 is disposed over the control element 91 for protection.

[0294] In some of the embodiments, the alarm element 92 is an audible and visual alarm system.

[0295] The explosion-proof performance of protective element 93 complies with the requirements of GB / T 3836.2-2021 (national standard "Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d").

[0296] In some of the embodiments, the explosion-proof grade of the protective element 93 is ExdⅡBT4, and the protection grade is IP65.

[0297] In some of the embodiments, the protective element 93 is an explosion-proof control box.

[0298] Example 4

[0299] This embodiment is a supplementary embodiment of Embodiments 1 to 3.

[0300] like Fig.13 As shown, the ship-shore interface safety device further includes an installation unit 100. The installation unit 100 is arranged on a horizontal plane and is used to install an air intake unit 10, a gas-liquid separation unit 20, a two-way explosion-proof unit 30, an air outlet unit 40, an exhaust unit 50, an inert gas delivery unit 60, and an oxygen content detection unit 70.

[0301] like Fig.14As shown, the installation unit 100 includes a prying frame element 101, a plurality of bracket elements 102 and a plurality of connecting elements 103. The prying frame element 101 is arranged on a horizontal plane; the plurality of bracket elements 102 are respectively arranged on the upper part of the prying frame element 101 and are respectively connected to the air inlet unit 10 and the air outlet unit 40; the plurality of connecting elements 103 are respectively connected to the air inlet unit 10, the air outlet unit 40 and the corresponding bracket elements 102.

[0302] Specifically, a plurality of support elements 102 are connected to the air inlet duct element 11 and the air outlet duct element 41 respectively.

[0303] In some of the embodiments, the pry component 101 is a mounting base.

[0304] In some of the embodiments, the connection method between the bracket component 102 and the pry component 101 includes but is not limited to screw connection and welding.

[0305] At least one support element 102 is connected to the air intake duct element 11. When a plurality of support elements 102 are connected to the air intake duct element 11, the plurality of support elements 102 are arranged at intervals along the axial direction of the air intake duct element 11.

[0306] At least one support element 102 is connected to the outlet duct element 41. When a plurality of support elements 102 are connected to the outlet duct element 41, the plurality of support elements 102 are arranged at intervals along the axial direction of the outlet duct element 41.

[0307] In some of the embodiments, the support element 102 is a pipe U-shaped support.

[0308] The number of connecting elements 103 matches the number of support elements 102. Generally, the number of connecting elements 103 is equal to the number of support elements 102.

[0309] In some of the embodiments, the connecting element 103 includes but is not limited to mounting angle brackets.

[0310] Example 5

[0311] This embodiment relates to a ship oil vapor recovery system of the present invention.

[0312] A ship oil and gas recovery system includes a ship-shore interface safety device as described in any one of Embodiments 1 to 4.

[0313] Furthermore, the ship oil and gas recovery system further comprises an oil and gas recovery device, wherein the oil and gas recovery device is connected to the gas outlet unit 40 .

[0314] Specifically, the oil and gas recovery device is connected to the gas outlet pipe element 41. Further, the ship oil and gas recovery system also includes a waste liquid recovery device. The waste liquid recovery device is connected to the liquid discharge unit 80.

[0315] Specifically, the waste liquid recovery device is communicated with the drain pipe element 81 .

[0316] Example 6

[0317] This embodiment relates to a method for using the ship-shore safety device of the present invention.

[0318] A method for using a ship-shore safety device is applied to a ship-shore interface safety device of any one of Embodiments 1 to 4 or a ship oil vapor recovery system of Embodiment 5, comprising:

[0319] The oxygen content detection unit 70 detects the oxygen content of the oil and gas in the air inlet unit 10 and the oil and gas in the air outlet unit 40 respectively;

[0320] When the oxygen content reaches a first oxygen content threshold, generating a first alarm signal;

[0321] When the oxygen content reaches a second oxygen content threshold, generating an inert gas input signal;

[0322] According to the inert gas input signal, the inert gas delivery unit 60 delivers the inert gas to the gas inlet unit 10 and / or the gas-liquid separation unit 20;

[0323] When the oxygen content does not reach the second oxygen content threshold, an inert gas stop signal is generated;

[0324] According to the inert gas stop signal, the inert gas delivery unit 60 stops delivering the inert gas to the gas intake unit 10 and / or the gas-liquid separation unit 20;

[0325] When the oxygen content reaches a third oxygen content threshold, generating a second alarm signal and a first stop signal;

[0326] According to the first stop signal, the oil and gas transportation work is stopped;

[0327] Among them, the third oxygen content threshold>the second oxygen content threshold>the first oxygen content threshold.

[0328] In some of the embodiments, the first oxygen content threshold is 5%.

[0329] In some of the embodiments, the first oxygen content threshold is 6%.

[0330] In some of the embodiments, the first oxygen content threshold is 8%.

[0331] In some embodiments, the oxygen content detection unit 70 detects the oxygen content of the oil and gas in the air intake unit 10, including:

[0332] The first oxygen content detection element 71 detects the oxygen content of the intake pipe element 11 to obtain a first oxygen content;

[0333] generating a first alarm signal when the first oxygen content reaches a first oxygen content threshold;

[0334] generating an inert gas input signal when the first oxygen content reaches a second oxygen content threshold;

[0335] According to the inert gas input signal, the first inert gas pipeline element 61 delivers the inert gas to the air inlet pipeline element 11;

[0336] generating an inert gas stop signal when the first oxygen content does not reach the second oxygen content threshold;

[0337] According to the inert gas stop signal, the first inert gas pipeline element 61 stops delivering the inert gas to the intake pipeline element 11; when the first oxygen content reaches the third oxygen content threshold, a second alarm signal and a first stop signal are generated;

[0338] According to the first stop signal, the oil and gas transportation work is stopped.

[0339] In some of the embodiments, the oxygen content detection unit 70 detects the oxygen content of the oil gas of the gas outlet unit 20 includes: the second oxygen content detection element 72 detects the oxygen content of the gas outlet pipeline element 41 to obtain a second oxygen content;

[0340] generating a first alarm signal when the second oxygen content reaches the first oxygen content threshold;

[0341] generating an inert gas input signal when the second oxygen content reaches a second oxygen content threshold;

[0342] According to the inert gas input signal, the second inert gas pipeline element 65 delivers the inert gas to the gas-liquid separation element 21;

[0343] generating an inert gas stop signal when the second oxygen content does not reach the second oxygen content threshold;

[0344] According to the inert gas stop signal, the second inert gas pipeline element 65 stops delivering the inert gas to the gas-liquid separation element 21; when the second oxygen content reaches the third oxygen content threshold, a second alarm signal and a first stop signal are generated;

[0345] According to the first stop signal, the oil and gas transportation work is stopped.

[0346] Example 7

[0347] This embodiment is a supplementary embodiment of Embodiment 6.

[0348] The use of ship-shore safety devices also includes:

[0349] Obtaining the gas pressure of the air intake unit 10;

[0350] When the gas pressure reaches a first preset pressure threshold, generating a third alarm signal;

[0351] When the gas pressure reaches a second preset pressure threshold, generating a second stop signal and an exhaust signal;

[0352] According to the second stop signal, the gas-liquid separation unit 20 is stopped;

[0353] According to the exhaust signal, the exhaust unit 50 is started to exhaust;

[0354] Among them, the second preset pressure threshold>the first preset pressure threshold.

[0355] In some embodiments, the first preset pressure threshold is 80% of the maximum allowable pressure.

[0356] In some embodiments, the second preset pressure threshold is 100% of the maximum allowable pressure.

[0357] In some of these embodiments, the maximum allowable pressure is 14 kPa.

[0358] In some embodiments, detecting the gas pressure of the air intake unit 10 includes:

[0359] Acquiring a first gas pressure of the air intake pipe element 11;

[0360] generating a third alarm signal when the first gas pressure reaches a first preset pressure threshold;

[0361] When the first gas pressure reaches a second preset pressure threshold, generating a second stop signal and an exhaust signal;

[0362] According to the second stop signal, closing the first emergency control valve element 22;

[0363] In response to the exhaust signal, the pressure relief element 52 is activated.

[0364] In some of the embodiments, the device for obtaining the first gas pressure of the intake pipe element 11 is any one of the first pressure detection element 15 , the second pressure detection element 16 , and the third pressure detection element 17 , or a combination of several of them.

[0365] Furthermore, the method for using the ship-shore safety device also includes:

[0366] Obtaining the gas pressure of the air intake unit 10;

[0367] When the gas pressure reaches a third preset pressure threshold, generating a fourth alarm signal;

[0368] When the gas pressure reaches a fourth preset pressure threshold, generating a third stop signal;

[0369] According to the third stop signal, the gas-liquid separation unit 20 is stopped;

[0370] The fourth preset pressure threshold is less than the third preset pressure threshold.

[0371] In some embodiments, the third preset pressure threshold is 1.5 kPa.

[0372] In some embodiments, the fourth preset pressure threshold is -3.5 kPa.

[0373] In some embodiments, detecting the gas pressure of the air intake unit 10 includes:

[0374] acquiring a second gas pressure of the air intake pipe element 11;

[0375] generating a fourth alarm signal when the second gas pressure reaches a third preset pressure threshold;

[0376] generating a third stop signal when the second gas pressure reaches a fourth preset pressure threshold;

[0377] In response to the third stop signal, the first emergency control valve element 22 is closed.

[0378] In some of the embodiments, the device for obtaining the first gas pressure of the intake pipe element 11 is any one of the first pressure detection element 15 , the second pressure detection element 16 , and the third pressure detection element 17 , or a combination of several of them.

[0379] Example 8

[0380] This embodiment is a specific embodiment of the method for using the ship-shore safety device of the present invention.

[0381] A method for using a ship-shore safety device, comprising:

[0382] The first oxygen content detection element 71 and the second oxygen content detection element 72 detect the oxygen content of the oil and gas in the air inlet pipe element 11 and the oxygen content of the oil and gas in the air outlet pipe element 41 respectively:

[0383] When the oxygen content of oil and gas exceeds 5%, the control element 91 receives the signal and the alarm element 92 sends out an alarm signal;

[0384] When the oxygen content of the oil and gas exceeds 6%, the control element 91 controls the second control valve element 62 to open, the control element 91 controls at least one of the third control valve element 64 and the fourth control valve element 66 to open, the first inert gas pipeline element 61 inputs inert gas to the intake pipeline element 11, and / or the second inert gas pipeline element 65 inputs inert gas to the gas-liquid separation element 21;

[0385] When the oxygen content is lower than 6%, the second control valve element 62, the third control valve element 64, and the fourth control valve element 66 are closed;

[0386] When the oxygen content reaches 8%, the control element 91 receives the signal and the alarm element 92 sends out an alarm signal to remind the staff to stop the operation and conduct an investigation.

[0387] Furthermore, the method of use also includes:

[0388] When the pressure of the air intake pipe element 11 exceeds 80% of the maximum allowable pressure (14 kPa) of the oil and gas pipeline in the cabin, the alarm element 92 sends out an alarm signal after the control element 91 receives the signal;

[0389] When the pressure of the air intake pipe element 11 reaches 100% of the maximum allowable pressure (14 kPa) of the oil and gas pipeline in the cabin, the first emergency control valve element 22 is closed and the pressure release element 52 is opened;

[0390] When the pressure of the air intake pipe element 11 drops to 1.5 kPa, the alarm element 92 sends out an alarm signal after the control element 91 receives the signal;

[0391] When the pressure of the intake duct element 11 drops to -3.5 kPa, the first emergency control valve element 22 is closed.

[0392] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A ship-shore interface safety device, It is characterized in that include: An air intake unit, which is detachably connected to the oil and gas pipeline in the cabin and is used to input oil and gas into the ship-shore interface safety device; A gas-liquid separation unit, which is arranged downstream of the air intake unit and is used for performing gas-liquid separation on the oil and gas; A two-way explosion-proof unit, which is arranged downstream of the gas-liquid separation unit and is used to prevent the detonation combustion of the flame; An air outlet unit, which is arranged downstream of the two-way explosion-proof unit and is used to transport oil and gas to an oil and gas recovery device; An exhaust unit, the exhaust unit being arranged between the air intake unit and the gas-liquid separation unit, and being used for emergency pressure relief when the pressure of the ship-shore interface safety device is higher or lower than a safety value; an inert gas delivery unit, the inert gas delivery unit being in communication with the air intake unit and the gas-liquid separation unit, respectively, and being used for delivering inert gas to the air intake unit and the gas-liquid separation unit, respectively, so as to reduce the oxygen content of the ship-shore interface safety device; An oxygen content detection unit is connected to the air inlet unit and the air outlet unit respectively, and is used to detect the oxygen content of the oil and gas pipeline in the cabin and the oxygen content of the oil and gas after being processed by the gas-liquid separation unit.

2. The ship-shore interface safety device according to claim 1, It is characterized in that The air intake unit comprises: An air intake pipeline component, which is respectively connected to the oil and gas pipeline of the cabin, the gas-liquid separation unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit, and is used to input oil and gas to the ship-shore interface safety device; a first control valve element, the first control valve element being arranged on the air intake pipe element and being used for controlling the opening and closing of the air intake pipe element; a first non-return element, which is arranged in the intake pipe element and is located downstream of the first control valve element, and is used to prevent the oil and gas entering the intake pipe element from flowing back; and / or The gas-liquid separation unit comprises: A gas-liquid separation element, which is arranged downstream of the air intake unit and is respectively connected to the air intake unit, the two-way explosion-proof unit, and the inert gas delivery unit, for performing gas-liquid separation on the oil and gas; and / or The two-way explosion-proof unit comprises: A two-way explosion-proof element, which is arranged downstream of the gas-liquid separation unit and is connected to the gas-liquid separation unit and the gas outlet unit respectively, and is used to prevent the detonation combustion of the flame; and / or The gas outlet unit comprises: An air outlet pipeline component, which is arranged downstream of the two-way explosion-proof unit and is respectively connected to the two-way explosion-proof unit and the oxygen content detection unit, and is used to transport gas to the oil and gas recovery device; and / or The exhaust unit comprises: a first exhaust pipe element, which is disposed between the air intake unit and the gas-liquid separation unit and is in communication with the air intake unit, and is used for emergency pressure relief when the pressure of the ship-shore interface safety device is higher or lower than a safety value; A pressure release element, which is arranged in the first exhaust pipe element and is used for emergency opening when the oil and gas oxygen content of the air intake unit reaches the explosion limit or the pressure exceeds the limit; and / or The inert gas delivery unit comprises: a first inert gas pipeline element, the first inert gas pipeline element being in communication with the air inlet unit and being used for providing inert gas to the ship-shore interface safety device; a second control valve element, the second control valve element being disposed on the first inert gas pipeline element and being used to control the opening or closing of the first inert gas pipeline element; a second check element, which is disposed on the first inert gas pipeline element and is located downstream of the second control valve element, and is used to prevent the gas entering the first inert gas pipeline element from flowing back; a third control valve element, the third control valve element being disposed on the first inert gas pipeline element and being located downstream of the second check element, and being used for connecting or closing the first inert gas pipeline element and the air inlet unit; a second inert gas pipeline element, the second inert gas pipeline element being in communication with the first inert gas pipeline element and the gas-liquid separation unit, and being located downstream of the second check element, and being used for conveying inert gas to the gas-liquid separation unit for purging; a fourth control valve element, the fourth control valve element being disposed on the second inert gas pipeline element and being used to open or close the second inert gas pipeline element; and / or The oxygen content detection unit comprises: a first oxygen content detection element, the first oxygen content detection element is connected to the air intake unit and is used to detect the oxygen content of the oil and gas pipeline in the cabin; A second oxygen content detection element is connected to the gas outlet unit and is used to detect the oxygen content of the oil gas after being processed by the gas-liquid separation unit.

3. The ship-shore interface safety device according to claim 2, It is characterized in that The air intake unit further comprises: a first flange element, which is disposed at the air inlet end of the air inlet pipe element and connected to the oil and gas pipeline in the cabin for insulation; and / or The air intake unit further comprises: a first pressure detection element, which is in communication with the air intake duct element and is located upstream of a communication position between the air intake duct element and the exhaust unit, and is used to detect an internal pressure of the air intake duct element; and / or The air intake unit further comprises: a second pressure detection element, which is connected to the air intake pipe element and is located downstream of the connection position between the air intake pipe element and the exhaust unit, and is used to detect the pressure of the oil and gas entering the gas-liquid separation unit; and / or The air intake unit further comprises: at least one third pressure detection element, the third pressure detection element being in communication with the air intake duct element and being located upstream of a communication position between the air intake duct element and the exhaust unit, for detecting a pressure difference inside the air intake duct element; and / or The gas-liquid separation unit also includes: a first emergency control valve element, which is disposed at the air inlet end of the gas-liquid separation element and is used to prevent oil and gas from entering the gas-liquid separation element in an emergency; and / or The gas-liquid separation unit also includes: a liquid level detection element, the liquid level detection element being in communication with the gas-liquid separation element and being used to detect the liquid level height of the gas-liquid separation element; and / or The two-way explosion-proof unit also includes: at least one temperature detection element, the temperature detection element being in communication with the bidirectional explosion-proof element and being used to detect the temperature of the bidirectional explosion-proof element; and / or The gas outlet unit also includes: a second flange element, the second flange element being arranged at the gas outlet end of the gas outlet pipe element and connected to an oil gas recovery device; and / or The gas outlet unit also includes: a flow detection element, the flow detection element being in communication with the gas outlet pipeline element and being used for detecting the flow of oil and gas entering the oil and gas recovery device; and / or The exhaust unit further comprises: a second exhaust duct element in communication with the first exhaust duct element; a second emergency control valve element, the second emergency control valve element being arranged in the second exhaust pipe element and being used for emergency opening in case that the oil and gas oxygen content of the ship-shore interface safety device reaches an explosion limit or the pressure exceeds a limit; a flame arrester element, the flame arrester element being arranged at the exhaust end of the second exhaust duct element, for preventing the detonation combustion of the flame; and / or The inert gas delivery unit also includes: a regulating element, the regulating element being arranged on the first inert gas pipeline element and being located downstream of the second check element and upstream of the third control valve element, for regulating the internal pressure of the first inert gas pipeline element; and / or The inert gas delivery unit also includes: A pressure reducing element is disposed on the first inert gas pipeline element and is located downstream of the second check element and upstream of the third control valve element for reducing pressure.

4. The ship-shore interface safety device according to any one of claims 1 to 3, It is characterized in that Also includes: a liquid discharge unit, the liquid discharge unit being in communication with the gas-liquid separation unit and being used for discharging liquid in the gas-liquid separation unit; and / or A control unit, wherein the control unit is respectively connected to the air intake unit, the gas-liquid separation unit, the two-way explosion-proof unit, the air outlet unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit for communication; and / or The installation unit is arranged on a horizontal plane and is used for installing the air intake unit, the gas-liquid separation unit, the two-way explosion-proof unit, the air outlet unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit.

5. The ship-shore interface safety device according to claim 4, It is characterized in that The liquid discharge unit comprises: a liquid discharge pipe element, the liquid discharge pipe element being in communication with the gas-liquid separation unit and being used for discharging liquid in the gas-liquid separation unit; a fifth control valve element, the fifth control valve element being arranged on the liquid discharge pipe element and being used for closing or opening the liquid discharge pipe element; and / or The control unit comprises: A control element, wherein the control element is respectively connected to the air intake unit, the gas-liquid separation unit, the two-way explosion-proof unit, the air outlet unit, the exhaust unit, the inert gas delivery unit, and the oxygen content detection unit; and / or The installation unit comprises: A pry frame element, wherein the pry frame element is disposed on a horizontal plane; A plurality of support elements, wherein the plurality of support elements are respectively arranged on the upper part of the skid frame element and are respectively connected to the air inlet unit and the air outlet unit; A plurality of connecting elements are respectively connected to the air inlet unit, the air outlet unit and the corresponding support element.

6. The ship-shore interface safety device according to claim 5, It is characterized in that The control unit also includes: an alarm element, the alarm element being in communication with the control element and configured to sound an alarm; and / or A protection element is provided to cover the control element for protection.

7. A ship oil and gas recovery system, It is characterized in that include: A ship-shore interface safety device as claimed in any one of claims 1 to 6.

8. A method for using a ship-shore safety device, applied to the ship-shore interface safety device according to any one of claims 1 to 6 or the ship oil vapor recovery system according to claim 7, It is characterized in that include: The oxygen content detection unit detects the oxygen content of the oil and gas in the air inlet unit and the oil and gas in the air outlet unit respectively; When the oxygen content reaches a first oxygen content threshold, generating a first alarm signal; When the oxygen content reaches a second oxygen content threshold, generating an inert gas input signal; According to the inert gas input signal, the inert gas delivery unit delivers the inert gas to the gas inlet unit and / or the gas-liquid separation unit; When the oxygen content does not reach the second oxygen content threshold, an inert gas stop signal is generated; According to the inert gas stop signal, the inert gas delivery unit stops delivering the inert gas to the gas intake unit and / or the gas-liquid separation unit; When the oxygen content reaches a third oxygen content threshold, generating a second alarm signal and a first stop signal; According to the first stop signal, stopping the oil and gas transportation work; Among them, the third oxygen content threshold>the second oxygen content threshold>the first oxygen content threshold.

9. The method of use according to claim 8, It is characterized in that Also includes: Get the gas pressure of the air inlet unit; When the gas pressure reaches a first preset pressure threshold, generating a third alarm signal; When the gas pressure reaches a second preset pressure threshold, generating a second stop signal and an exhaust signal; stopping the gas-liquid separation unit according to the second stop signal; According to the exhaust signal, the exhaust unit is started to exhaust; Wherein, the second preset pressure threshold>the first preset pressure threshold; and / or Get the gas pressure of the air inlet unit; When the gas pressure reaches a third preset pressure threshold, generating a fourth alarm signal; When the gas pressure reaches a fourth preset pressure threshold, generating a third stop signal; stopping the gas-liquid separation unit according to the third stop signal; The fourth preset pressure threshold is less than the third preset pressure threshold.

10. The method of use according to claim 8 or 9, It is characterized in that Also includes: The first oxygen content detection element detects the oxygen content of the intake pipe element to obtain a first oxygen content; generating a first alarm signal when the first oxygen content reaches a first oxygen content threshold; generating an inert gas input signal when the first oxygen content reaches a second oxygen content threshold; The first inert gas conduit element delivers inert gas to the air inlet conduit element according to the inert gas input signal; generating an inert gas stop signal when the first oxygen content does not reach the second oxygen content threshold; According to the inert gas stop signal, the first inert gas pipeline element stops delivering the inert gas to the intake pipeline element; when the first oxygen content reaches a third oxygen content threshold, a second alarm signal and a first stop signal are generated; According to the first stop signal, stop the oil and gas transportation work; and / or The second oxygen content detection element detects the oxygen content of the outlet pipeline element to obtain a second oxygen content; generating a first alarm signal when the second oxygen content reaches the first oxygen content threshold; generating an inert gas input signal when the second oxygen content reaches a second oxygen content threshold; According to the inert gas input signal, the second inert gas pipeline element delivers the inert gas to the gas-liquid separation element; generating an inert gas stop signal when the second oxygen content does not reach the second oxygen content threshold; According to the inert gas stop signal, the second inert gas pipeline element stops delivering the inert gas to the gas-liquid separation element; when the second oxygen content reaches a third oxygen content threshold, a second alarm signal and a first stop signal are generated; According to the first stop signal, stop the oil and gas transportation work; and / or acquiring a first gas pressure of an intake pipe element; generating a third alarm signal when the first gas pressure reaches a first preset pressure threshold; When the first gas pressure reaches a second preset pressure threshold, generating a second stop signal and an exhaust signal; closing the first emergency control valve element according to the second stop signal; activating a pressure release element according to the exhaust signal; Wherein, the second preset pressure threshold>the first preset pressure threshold; and / or obtaining a second gas pressure of the intake duct component; generating a fourth alarm signal when the second gas pressure reaches a third preset pressure threshold; generating a third stop signal when the second gas pressure reaches a fourth preset pressure threshold; closing the first emergency control valve element according to the third stop signal; The fourth preset pressure threshold is less than the third preset pressure threshold.

Images