Alcohol fuel barrier anti-explosion skid-mounted filling device

Abstract

The invention discloses an alcohol fuel blocking anti-explosion skid-mounted filling device which comprises a storage tank used for storing an alcohol fuel medium, the two ends of the storage tank are communicated with an unloading module and a filling module respectively, the storage tank comprises an inner tank body and an outer tank body arranged outside the inner tank body in a sleeving mode, the inner tank body makes contact with the alcohol fuel medium, and the outer tank body makes contact with the alcohol fuel medium. The design pressure of the inner tank body is larger than the working pressure of the inner tank body, and the inner tank body is further filled with a plurality of blocking anti-explosion pieces of a net-shaped structure. While the mobility problem of the filling device is solved, the protection level of the filling device is guaranteed, and the filling device is suitable for alcohol adding in large construction sites such as logistics parks, ports, wharfs, airports and mines and scenes such as the interiors of enterprises.

Description

Technical Field

[0001] The invention belongs to the technical field of alcohol fuel medium filling, and in particular relates to an alcohol fuel barrier explosion-proof skid-mounted filling device. Background Art

[0002] With the continuous upgrading of environmental protection and green energy, methanol and other alcohol media are being continuously upgraded and utilized as fuels. At present, most filling stations use buried storage tanks, and the filling equipment is set on the ground to ensure the protection level of the storage tanks, but it cannot meet the application scenarios of mobile filling needs. At the same time, it is not suitable for some areas where it is difficult to build buried stations. Summary of the invention

[0003] The purpose of the present invention is to provide an alcohol fuel barrier explosion-proof skid-mounted filling device to overcome the defects of the prior art. The storage tank, unloading and filling are all integrated on the skid to form an integrated ground movable refueling device, which is suitable for alcohol refueling in large construction sites such as logistics parks, ports, docks, airports, mines, and within enterprises. While solving the mobility problem, the protection level of the filling equipment is guaranteed.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] An alcohol fuel barrier explosion-proof skid-mounted filling device comprises a storage tank for storing alcohol fuel medium, wherein both ends of the storage tank are respectively connected with an unloading module and a filling module, the storage tank comprises an inner tank body and an outer tank body sleeved outside the inner tank body, the inner tank body is in contact with the alcohol fuel medium, the design pressure of the inner tank body is greater than its working pressure, and the inner tank body is also filled with a plurality of barrier explosion-proof parts with a mesh structure.

[0006] In one embodiment, the unloading module includes an unloading liquid phase stop valve and an unloading gas phase stop valve for connecting to a tank truck, the unloading liquid phase stop valve is connected to a filter and an unloading pump in sequence, the unloading pump is connected to the inner tank body, and a nitrogen stop valve is arranged between the unloading liquid phase stop valve and the filter. Through this embodiment, the alcohol fuel of the tank truck or the transport truck is unloaded through the unloading module and stored in the storage tank, and the alcohol fuel is transported to the upper part of the storage tank through the unloading liquid phase stop valve by the unloading pump, and the unloading gas phase stop valve is arranged to be connected to the transport truck at the same time. During the oil unloading process, since the pressure in the transport truck decreases and the pressure in the storage tank increases, a pressure difference is generated between the storage tank and the transport truck. This embodiment enables the oil and gas volatilized during the oil unloading process to return to the transport truck through the gas pipeline, so as to achieve the purpose of oil and gas collection, and effectively avoid environmental pollution problems caused by the release of alcohol evaporation gas.

[0007] In one embodiment, the filling module includes a plurality of oil guns, each of which has a filling pipeline connected to the inner tank body, the filling pipeline is sequentially connected with a breakaway valve, a solenoid valve and a refueling pump, and the refueling pump is connected to the liquid outlet of the inner tank body. Through this embodiment, the refueling pump is used to output the alcohol fuel medium in the storage tank through the filling pipeline to the vehicle to be filled. The plurality of oil guns provided can be used to fill a plurality of vehicles to be filled at the same time, thereby improving the filling efficiency.

[0008] In one embodiment, the filling module is further provided with a vacuum pump connected to the unloading gas phase shut-off valve, and the other end of the vacuum pump is respectively connected to the multiple oil guns. Through this embodiment, the vacuum pump arranged in the filling module can cooperate with the oil gun. During the filling process, a certain vacuum degree is generated by the vacuum pump, and the volatile gas in the filling process is recovered into the storage tank, and the gas-liquid ratio is controlled between 1.0 and 1.2.

[0009] In one embodiment, a flow meter is further provided on the filling pipeline, and the flow meter is located between the refueling pump and the solenoid valve.

[0010] In one embodiment, the design pressure of the inner tank body is 0.8 MPa. Through this embodiment, the working pressure of the inner tank body when storing the fuel medium is at normal pressure, so that when the storage tank is accidentally damaged, even when the barrier explosion-proof parts in the inner tank body fail, it can withstand the explosion impact of the fuel medium, thereby ensuring the explosion-proof performance of the skid-mounted filling device.

[0011] In one embodiment, there is a gap between the outer tank body and the inner tank body, in which a leakage detector and an insulation layer made of insulation material are arranged. Through this embodiment, the outer tank body can effectively prevent leakage accidents caused by damage to the inner tank body, and the leakage detector can detect the leakage of alcohol fuel caused by damage to the inner tank body or the water leakage caused by damage to the outer tank body, and promptly notify the maintenance personnel to inspect the storage tank. The insulation layer filled in the gap can effectively isolate the influence of external high temperature on the inner tank body, and reduce the generation and emission of evaporation gas in the inner tank body.

[0012] In one embodiment, the liquid outlet of the inner tank body is sequentially connected to a high-temperature fuse valve and a filling liquid outlet stop valve. Through this embodiment, the high-temperature fuse valve arranged at the liquid outlet can be automatically triggered in the event of a high-temperature accident such as a fire, and the liquid outlet can be closed in time to play a safety and fire prevention role, thereby preventing the possibility of the accident escalating again and further improving the safety of the skid.

[0013] In one embodiment, the inner tank body is made of stainless steel, and the outer tank body is made of carbon steel.

[0014] In one embodiment, the storage tank is provided with a pressure relief hole and a breathing valve connected to the external environment. Through this embodiment, the provided breathing valve can effectively protect the inner tank body, discharge the gas in the inner tank body when the gas evaporates and overpressure occurs, and at the same time inhale air to maintain the state of the inner tank body when the inner tank body is under negative pressure.

[0015] The beneficial effects of the present invention are:

[0016] (1) Storage tanks, unloading and filling are all integrated on the skid to form an integrated ground-mounted mobile refueling device. The mesh-structured barrier explosion-proof parts filled in the flammable liquid and flammable gas storage tanks can effectively block the spread of flames and prevent explosions. At the same time, the design pressure of the inner tank body is greater than its working pressure, which effectively improves the explosion resistance of the storage tank. That is, while solving the mobility problem, the protection level of the filling equipment is guaranteed.

[0017] (2) It can perform primary and secondary oil and gas recovery, so that the volatilized oil and gas during the oil unloading process can be returned to the transport vehicle through the gas pipeline to achieve the purpose of oil and gas collection, effectively avoiding the environmental pollution caused by the release of alcohol evaporation gas. The oil gun is combined with a vacuum pump that produces a certain vacuum degree to recover the volatile gas during the filling process into the storage tank, reducing the emission of evaporation gas during loading and unloading and filling;

[0018] (3) There is a gap between the outer tank body and the inner tank body, which is equipped with a leak detector and filled with an insulation layer. It can timely detect the leakage of alcohol fuel caused by damage to the inner tank body or the water leakage caused by damage to the outer tank body. The insulation layer can effectively isolate the influence of external high temperature on the inner tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0020] Figure 1 A schematic diagram showing the interconnection of various modules of the present invention;

[0021] Figure 2 Shows a schematic diagram of the structure of the present invention;

[0022] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0023] Reference numerals:

[0024] 1-inner tank body, 2-outer tank body, 3-unloading module, 4-filling module, 5-unloading liquid phase stop valve, 6-unloading gas phase stop valve, 7-filter, 8-unloading pump, 9-nitrogen stop valve, 10-oil gun, 11-pull-off valve, 12-solenoid valve, 13-fuel pump, 14-vacuum pump, 15-flow meter, 16-leakage detector, 17-high temperature fuse valve, 18-filling liquid stop valve, 19-pressure relief hole, 20-breathing valve. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] The present invention provides an alcohol fuel barrier explosion-proof skid-mounted filling device, such as Figure 1 and Figure 2 As shown, a storage tank for storing alcohol fuel medium is included, and both ends of the storage tank are connected to an unloading module 3 and a filling module 4 respectively. The storage tank includes an inner tank body 1 and an outer tank body 2 sleeved outside the inner tank body 1. The inner tank body 1 is in contact with the alcohol fuel medium. The design pressure of the inner tank body 1 is greater than its working pressure. The inner tank body 1 is also filled with a plurality of barrier explosion-proof parts with a mesh structure;

[0027] It should be noted that, in this embodiment, the storage tank, the unloading module 3 and the filling module 4 are all integrated on the skid to form an integrated ground movable refueling device. The barrier explosion-proof parts of the mesh structure are filled in the storage tanks of flammable liquids and flammable gases to effectively block the spread of flames, so that the device will not cause combustion and explosion accidents even in the event of open flames, static electricity, welding, gunfire, collision, misoperation, etc., ensuring the safety of alcohol fuel media during storage and transportation and preventing explosions. At the same time, the design pressure of the inner tank body 1 is greater than its working pressure, which effectively improves the explosion resistance of the storage tank, that is, while solving the mobility problem, it ensures the protection level of the filling equipment, and is suitable for the use of alcohol filling in large construction sites such as logistics parks, ports, docks, airports, mines, and internal scenes of enterprises;

[0028] In one embodiment, the unloading module 3 includes an unloading liquid phase stop valve 5 and an unloading gas phase stop valve 6 for connecting to the tank truck, the unloading liquid phase stop valve 5 is sequentially connected to a filter 7 and an unloading pump 8, the unloading pump 8 is communicated with the inner tank body 1, and a nitrogen stop valve 9 is arranged between the unloading liquid phase stop valve 5 and the filter 7, that is, the alcohol fuel of the tank truck or transport truck is unloaded through the unloading module 3 and stored in the storage tank, and the alcohol fuel is transported to the upper part of the storage tank through the unloading liquid phase stop valve 5 by the unloading pump 8, and the unloading gas phase stop valve 6 is arranged at the same time. When connected to the transport vehicle, during the oil unloading process, due to the decrease in pressure in the transport vehicle and the increase in pressure in the storage tank, a pressure difference is generated between the storage tank and the transport vehicle. This embodiment can make the volatilized oil and gas in the oil unloading process return to the transport vehicle through the gas pipeline to achieve the purpose of oil and gas collection, effectively avoiding the environmental pollution problem caused by the release of alcohol evaporation gas. The set nitrogen stop valve 9 can be used for nitrogen purging. Nitrogen can be used to purge the liquid phase pipeline before and after unloading to replace the air inside the pipeline, so as to avoid the low flash point fuel from contacting with air and causing an explosion accident;

[0029] In one embodiment, the filling module 4 includes a plurality of oil guns 10, each of which has a filling pipeline connected to the inner tank body 1, and a break valve 11, a solenoid valve 12 and a refueling pump 13 are sequentially connected to the filling pipeline, and the refueling pump 13 is connected to the liquid outlet of the inner tank body 1, that is, the alcohol fuel medium in the storage tank is output to the vehicle to be filled through the filling pipeline by the refueling pump 13, and the plurality of oil guns 10 can be used for filling multiple vehicles to be filled at the same time, thereby improving the filling efficiency;

[0030] Specifically, the filling module 4 is also provided with a vacuum pump 14 connected to the unloading gas phase shut-off valve 6, and the other end of the vacuum pump 14 is respectively connected to a plurality of oil guns 10, that is, the vacuum pump 14 provided in the filling module 4 can cooperate with the oil gun 10, and during the filling process, a certain vacuum degree is generated by the vacuum pump 14, and the volatile gas in the filling process is recovered into the storage tank, and the gas-liquid ratio is controlled between 1.0 and 1.2, that is, the filling device provided in this embodiment can perform primary oil and gas recovery and secondary oil and gas recovery, so that the oil and gas volatilized during the oil unloading process can be returned to the transport vehicle through the gas pipeline to achieve the purpose of oil and gas collection, and effectively avoid the environmental pollution problem caused by the release of alcohol evaporation gas. The oil gun 10 cooperates with the vacuum pump 14 that generates a certain vacuum degree to recover the volatile gas in the filling process into the storage tank, thereby reducing the emission of evaporation gas during loading and unloading and filling.

[0031] Furthermore, the design pressure of the inner tank body 1 is 0.8 MPa. The inner tank body 1 is made of stainless steel, and the outer tank body 2 is made of carbon steel. The working pressure of the inner tank body 1 when storing the fuel medium is at normal pressure, so that when the skid-mounted filling device provided in this embodiment is accidentally damaged, even if the barrier explosion-proof component in the inner tank body 1 fails, it can still withstand the explosion impact of the fuel medium, thereby ensuring the explosion-proof performance of the skid-mounted filling device;

[0032] In one embodiment, a flow meter 15 is further provided on the filling pipeline, and the flow meter 15 is located between the refueling pump 13 and the solenoid valve 12. There is a gap between the outer tank body 2 and the inner tank body 1, and a leakage detector 16 and an insulation layer made of insulation material are provided therein, that is, the outer tank body 2 provided can effectively prevent leakage accidents caused by damage to the inner tank body 1, and the leakage detector 16 provided can detect the leakage of alcohol fuel caused by damage to the inner tank body 1 or the water leakage caused by damage to the outer tank body 2, and promptly notify the maintenance personnel to inspect the storage tank, and the insulation layer filled in the gap can effectively isolate the influence of the external high temperature on the inner tank body 1, reduce the generation and emission of evaporation gas in the inner tank body 1, and the flow meter 15 provided can perform filling detection in real time;

[0033] In one embodiment, Figure 1 As shown, the liquid outlet of the inner tank body 1 is connected in sequence with a high-temperature fuse valve 17 and a filling liquid outlet stop valve 18. The high-temperature fuse valve 17 arranged at the liquid outlet can be automatically triggered in the event of a high-temperature accident such as a fire, and the liquid outlet can be closed in time to play a role in safety and fire prevention, thereby preventing the possibility of the accident escalating again and further improving the safety of the skid installation;

[0034] In one embodiment, Figure 1 As shown, the storage tank is provided with a pressure relief hole 19 and a breathing valve 20 connected to the external environment, that is, the breathing valve 20 provided can effectively protect the inner tank body 1, and discharge the gas in the inner tank body 1 when the gas evaporates and the overpressure occurs, and at the same time, inhale air to maintain the state of the inner tank body 1 when the inner tank body 1 is under negative pressure;

[0035] In one embodiment, an automatic fire extinguisher is also provided above the storage tank, which is automatically triggered when the ambient temperature is greater than 95°C to improve the safety of the skid installation. The filling module 4 is also provided with a gas detector to monitor the gas concentration of the surrounding environment in real time online to avoid accidents of gas leakage.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. An alcohol fuel barrier explosion-proof skid-mounted filling device, characterized in that: It comprises a storage tank for storing alcohol fuel medium, wherein both ends of the storage tank are respectively connected with an unloading module and a filling module, the storage tank comprises an inner tank body and an outer tank body sleeved outside the inner tank body, the inner tank body is in contact with the alcohol fuel medium, the design pressure of the inner tank body is greater than its working pressure, and the inner tank body is also filled with a plurality of barrier explosion-proof parts with a mesh structure.

2. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 1 is characterized in that: The unloading module includes an unloading liquid phase stop valve and an unloading gas phase stop valve for connecting to the tank truck. The unloading liquid phase stop valve is sequentially connected to a filter and an unloading pump. The unloading pump is connected to the inner tank body. A nitrogen stop valve is arranged between the unloading liquid phase stop valve and the filter.

3. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 2 is characterized in that: The filling module includes a plurality of oil guns, each of which has a filling pipeline connected to the inner tank body, a break valve, a solenoid valve and a filling pump are sequentially connected to the filling pipeline, and the filling pump is connected to the liquid outlet of the inner tank body.

4. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 3 is characterized in that: The filling module is also provided with a vacuum pump connected to the unloading gas phase cut-off valve, and the other end of the vacuum pump is respectively connected to the plurality of oil guns.

5. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 3 is characterized in that: The filling pipeline is also provided with a flow meter, and the flow meter is located between the refueling pump and the solenoid valve.

6. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 1, characterized in that: The design pressure of the inner tank is 0.8 MPa.

7. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 1, characterized in that: There is a gap between the outer tank body and the inner tank body, in which a leakage detector is arranged and a heat-insulating layer made of heat-insulating material is filled.

8. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 3, characterized in that: The liquid outlet of the inner tank body is sequentially connected with a high-temperature fuse valve and a filling and liquid outlet stop valve.

9. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 1, characterized in that: The inner tank body is made of stainless steel, and the outer tank body is made of carbon steel.

10. The alcohol fuel barrier explosion-proof skid-mounted filling device according to claim 1, characterized in that: The storage tank is provided with a pressure relief hole and a breathing valve communicated with the external environment.

Images