CN205877716U - Be used for pier vapor recovery system facility ship bank butt joint safety device - Google Patents

Abstract

The utility model relates to a ship-shore docking safety device for oil and gas recovery facilities at a wharf, comprising a wharf safety unit, an induced fan unit and an external control panel, the wharf safety unit is connected with an oil and gas inlet, and a safety valve is arranged between the two , there is a parallel branch composed of a ship cargo hold pressure alarm transmitter and a ship cargo hold pressure isolation transmitter inside the dock safety unit. There is a delay switch at the end of the parallel branch, and the delay switch is respectively connected to A steam emergency cut-off valve and a separator, the oil circuit of the separator is sequentially connected to the explosion arrester I and the pipeline mixer, and the pipeline mixer is respectively connected to an independent filter and an explosion arrester II; the dock safety The unit is respectively connected with the induced draft fan unit and the external control panel. The beneficial effects of the utility model are: it can ensure that the position arrangement, composition and requirements of each part assembly comply with regulations and safety standards.

Description

A ship-shore docking safety device for oil and gas recovery facilities at wharves

technical field

The utility model relates to a wharf oil gas recovery technology, in particular to a ship-shore docking safety device used for wharf oil gas recovery facilities.

Background technique

Oil and gas are volatile organic pollutants. Oil and gas contain a variety of carcinogenic components, and a large proportion of unsaturated hydrocarbons has a greater effect on the formation of photochemical smog and ozone pollution. Control of air pollution. Oil and gas recovery can not only reuse the lost oil and gas, but also effectively prevent a large amount of oil and gas from infiltrating into the atmosphere, reduce environmental pollution, and at the same time improve the safety factor of docks and tank farms; this measure can effectively promote energy conservation and emission reduction. It is also the need to vigorously develop the environmental protection industry, circular economy and green economy. At present, oil and gas recovery work has been carried out for oil depots, refineries and gas stations, but the process development of oil and gas recovery devices for oil terminal loading operations is progressing slowly. Therefore, continuous innovation in oil and gas recovery technology is still needed.

At present, there are some oil and gas recovery safety facilities in domestic wharfs, and their structures generally include static conductive hoses, hand valves, pressure transmitters, oxygen content analyzers, quick shut-off valves, filters, flame arresters, explosion-proof high-pressure fans, electric Butterfly valves, differential pressure transmitters, temperature transmitters, etc. According to actual analysis, it can be seen from the situation of these oil and gas recovery facilities that many similar safety devices are abandoned due to lack of corresponding configurations, and many of them do not meet safety standards. Or there are problems with the ship-to-shore interface security system.

What needs to be pointed out in this case is that the ship-shore interface safety facilities for oil and gas recovery at the wharf (actually not limited to oil and gas recovery, but also recovery and treatment of other toxic and harmful gases)—that is, from oil tank oil and gas collection pipes to back-end oil and gas recovery The connection link between devices; this link is the key part involving the safety of oil and gas recovery, the so-called life-threatening part, so the location arrangement, composition and requirements of its components must comply with the regulations. At present, China's laws and regulations have not yet been formed, and only in accordance with international practices, the location, composition and requirements of the components of the wharf oil and gas recovery device must be implemented in accordance with relevant laws and regulations. Therefore, in view of the above aspects, it is necessary to make reasonable improvements to the prior art.

Utility model content

In view of the above defects, the utility model provides a ship-shore docking safety device for oil and gas recovery facilities at wharfs that has complete functions, complies with relevant regulations and standards, is safe and environmentally friendly, and is beneficial to saving costs, so as to solve many deficiencies in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A ship-to-shore docking safety device for oil and gas recovery facilities at a wharf, including a wharf safety unit, an induced draft fan unit and an external control panel. Inside the unit, there is a parallel branch composed of a ship’s cargo hold pressure alarm transmitter and a ship’s cargo hold pressure isolation transmitter. The end of the parallel branch has a delay switch, and the delay switch is respectively connected to a steam emergency cut-off Valve, a separator, the oil circuit of the separator is sequentially connected to the explosion arrester I and the pipeline mixer, and the pipeline mixer is respectively connected to an independent filter and an explosion arrester II; the dock safety unit is respectively connected to the pilot The fan unit and the external control panel are connected, and there is a blower inside the induced draft fan unit. On the pipeline at the output end of the blower, the explosion arrester III, the explosion arrester IV, and the combustion system device are arranged in sequence; the pipeline where the independent filter is located is in turn Set pressure self-operated regulating valve and natural gas feed pump.

The natural gas feed pump is connected with the natural gas storage tank, and the natural gas storage tank is connected with the imported natural gas inlet through the natural gas unloading pump.

The beneficial effect of the ship-shore docking safety device for oil and gas recovery facilities of the wharf described in the utility model is that it is composed of a wharf safety unit, an induced draft fan unit and an external control panel, and is equipped with a transmitter, a separator, an explosion arrester, an independent Filters and corresponding valves and switches can ensure that the location arrangement, composition and requirements of various components comply with regulations and safety standards; if combined with additional software control, it can also provide all key data for proper operation and diagnosis, and the graphical user interface display Valve position, operating status of all equipment, real-time pressure, temperature and concentration, and history of all triggers and alarms and shutdowns.

Description of drawings

Below according to accompanying drawing, the utility model is described in further detail.

Fig. 1 is a schematic diagram of the structural connection of the ship-shore docking safety device used in the wharf oil and gas recovery facility according to the embodiment of the utility model.

In the picture:

101. Ship cargo hold pressure alarm transmitter; 102. Ship cargo hold pressure isolation transmitter; 103. Steam emergency shut-off valve; 104. Separator; 105. Explosion arrester Ⅰ; 106. Pipeline mixer; 107. Time delay switch ; 108, safety valve; 109, independent filter; 110, explosion arrester Ⅱ;

201. Pressure self-operated regulating valve; 202. Natural gas feed pump; 203. Natural gas storage tank; 204. Natural gas unloading pump; 205. Blower; 206. Explosion arrester III; 207. Explosion arrester IV; 208. Combustion system device .

detailed description

As shown in Figure 1, the ship-to-shore docking safety device for oil and gas recovery facilities at the wharf described in the embodiment of the utility model includes a wharf safety unit, an induced draft fan unit and an external control panel, the wharf safety unit is connected to the oil and gas inlet and A safety valve 108 is set between the two, and there is a parallel branch composed of a ship cargo hold pressure alarm transmitter 101 and a ship cargo hold pressure isolation transmitter 102 inside the dock safety unit. Time-delay switch 107, this time-delay switch 107 is respectively connected to a steam emergency cut-off valve 103, a separator 104, wherein the oil circuit of the separator 104 is sequentially connected to the explosion arrester I105, the pipeline mixer 106, and the pipeline mixer 106 is respectively connected with an independent filter 109 and a blast arrester II 110; the dock safety unit is respectively connected with the induced draft fan unit and the external control panel, and there is a blower 205 inside the induced draft fan unit, and on the pipeline at the output end of the blower 205 Set up detonation arrester III 206, detonation arrester IV 207, combustion system device 208 in sequence;

Correspondingly, the pipeline where the independent filter 109 is located is sequentially provided with a pressure self-operated regulating valve 201 and a natural gas feed pump 202, and the natural gas feed pump 202 is connected to a natural gas storage tank 203, which is passed through a natural gas unloading pump. 204 is connected with the imported natural gas.

In the ship-to-shore docking safety device for oil and gas recovery facilities at the wharf described above in the embodiment of the utility model, the ship cargo hold pressure alarm transmitter 101 is used to monitor the cabin pressure and exceeds the set value of the ship hold pressure release valve by 80% and When it is lower than 80% of the set value of the ship’s cargo hold vacuum release valve, the steam control system (MVCS) will be alarmed; (or 90% of the setting value of the pressure relief valve) and shut off the entire steam control system when it is lower than 90% of the setting value of the vacuum relief valve of the ship's cargo hold (or 90% of the setting value of the vacuum relief valve); the steam The emergency shut-off valve 103 automatic switch valve can stop the entire steam control system within 30 seconds. This valve is a fail-closed type and has a certain fire-resistant safety level; the independent filter 109 removes any particles that may be carried in the steam. The detonator will prolong the life of the detonator by removing solids entrained in the vapor to prevent it from clogging the detonator, increasing its pressure drop and limiting its flow; The driving power of the unit, the power of the induced draft fan depends on the components used in the terminal steam control system, such as the terminal safety unit, the induced draft fan unit, the steam treatment device and the overall pressure drop of the piping connecting these components, and the pressure on the ship also needs to be considered The design liquid cargo transfer rate of relief valves, pier vapor control systems and the vapor pressure of the transferred liquid cargo.

The above description of the embodiments is for those of ordinary skill in the technical field to be able to understand and apply the technology of this case. Those skilled in the art can easily make various modifications to these examples, and apply the general principles described here to other embodiments without creative effort. Therefore, this case is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of this case should be within the scope of protection of this case.

Claims (2)

1. for harbour petroleum vapor recovery facility ship bank dock a safety device, including dock safety unit, air-introduced machine unit with External control dish, it is characterised in that: described dock safety unit connects with oil and gas import and arranges relief valve between (108), inside dock safety unit with one by ship cargo hold pressure alarm transmitter (101) and ship cargo hold pressure every The parallel branch that transmitter (102) forms absolutely, this parallel branch end is with delay switch (107), this delay switch (107) point Not Jie Ru steam quick action emergency valve (103), a separator (104), separator therein (104) oil circuit is sequentially ingressed into resistance Quick-fried device I (105), pipe-line mixer (106), described pipe-line mixer (106) connect respectively an independent filter (109), one Individual detonation seal II (110)；Described dock safety unit connects with air-introduced machine unit, external control dish respectively, at air-introduced machine unit Internal with aerator (205), the pipeline of this aerator (205) outfan sets gradually detonation seal III (206), detonation seal IV (207), combustion system device (208)；Described independent filter (109) place pipeline sets gradually pressure direct-operated regulator (201), natural gas feed pump (202).

It is the most according to claim 1 for harbour petroleum vapor recovery facility ship bank docking safety device, it is characterised in that: described Natural gas feed pump (202) is connected with natural gas storage tank (203), and this natural gas storage tank (203) passes through natural gas unloading pump (204) It is connected with outsourcing Imported gas.