An optimization design method for large-scale high-pressure gas storage skid-mounted equipment

Abstract

The present invention discloses a method for optimizing the design of a large-scale high-pressure gas storage skid-mounted equipment, comprising: (1) overall design; (2) tank body design; (3) base frame design; in the overall design of step (1) and the tank body design of step (2), a plurality of pressure equalizing rings are arranged axially at intervals on the outer circle of the tank body of the skid-mounted equipment to achieve balanced deformation of the outer circle of the tank body under high pressure; in the overall design of step (1) and the base frame design of step (3), a vibration isolation component is arranged on the base frame of the tank body of the skid-mounted equipment to reduce vibration during transportation; the vibration isolation component includes a channel steel arranged at the lower part of the base frame with the notch facing downward, an elastic rubber body arranged in the channel steel, a sand body filling space is arranged between the upper part of the elastic rubber body and the inner groove of the channel steel, and a sand body for absorbing the vibration energy of the steel plate table when transported by a vehicle is encapsulated in the sand body filling space. The present invention improves the safety of the skid-mounted equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of skid-mounted equipment, and in particular to an optimization design method for large-scale high-pressure gas storage skid-mounted equipment. Background Art

[0002] Skid-mounted equipment is widely used in the supply fields of energy, chemical industry, etc. According to the different types of energy supply, energy supply skid-mounted equipment can be divided into skid-mounted refueling equipment, skid-mounted liquefied gas refueling equipment, and skid-mounted liquid hydrogen refueling equipment. Chemical skid-mounted equipment may involve the supply and use of some high-pressure and high-risk liquid chemicals.

[0003] Skid-mounted equipment is usually composed of a mobile frame base, a tank body, a rack platform and related instruments and equipment installed on the frame base. It assembles containers (equipment), pipelines, valves, instruments, electrical equipment, etc. on a steel structure frame base to become an integrated ground-based mobile energy or liquid material supply station.

[0004] Since the energy or chemical liquids used by skid-mounted equipment are mostly dangerous, it is particularly important to ensure the safety of skid-mounted equipment. Considering that after skid-mounted equipment is produced in a different place, it is mainly transported to the work site by road. During road transportation, due to the unevenness and randomness of the road surface, the skid-mounted equipment is in random vibration for a long time and is easily damaged during transportation, causing huge economic losses. Statistics show that product damage during transportation is mainly caused by vibration and impact. After production, skid-mounted equipment is transported to the work site. The transportation distance is long and the transportation road conditions are complicated. The transport truck will vibrate during driving due to the uneven road surface. Especially on bumpy roads, the vibration transmitted to the skid-mounted equipment is very bad, and the risk of damage to the skid-mounted equipment is extremely high. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a large-scale high-pressure gas storage skid-mounted equipment optimization design method, aiming to improve the safety of skid-mounted equipment use and transportation. The specific technical solution is as follows:

[0006] A large-scale high-pressure gas storage skid-mounted equipment optimization design method comprises the following steps:

[0007] (1) Overall design: The overall design of the skid-mounted equipment shall be carried out according to the design requirements and operating conditions of the large-scale high-pressure gas storage skid-mounted equipment and in accordance with the relevant design specifications and standards of the skid-mounted equipment. The overall design includes the overall design of the skid-mounted equipment's external structure, the overall design of the tank structure, the overall design of the base frame structure, the overall design of the structures of other components, and the overall design of the assembly and connection relationship of each component, so as to form the overall design CAD drawing of the large-scale high-pressure gas storage skid-mounted equipment;

[0008] (2) Tank design: Carry out detailed design of the tank and form a preliminary CAD drawing of the tank design; then use finite element analysis elements to check the strength of the preliminary designed tank, and if necessary, modify the tank structure dimensions until the strength requirements are met, and form a modified CAD drawing of the tank design;

[0009] (3) Base frame design: Carry out detailed design of the base frame and form a preliminary CAD drawing of the base frame design; then use finite element analysis elements to check the strength of the preliminary designed base frame, and if necessary, modify the base frame structure dimensions until the strength requirements are met, and form a modified CAD drawing of the base frame design;

[0010] In the overall design of step (1) and the tank body design of step (2), a number of pressure equalizing rings are arranged axially at intervals on the outer circle of the tank body of the skid-mounted equipment to achieve balanced deformation of the outer circle of the tank body under high pressure;

[0011] Among them, in the overall design of step (1) and the base frame design of step (3), a vibration isolation component is arranged on the base frame of the skid-mounted equipment tank body to reduce the vibration during transportation so as to improve the safety of the skid-mounted equipment during vehicle transportation; the vibration isolation component includes a channel steel arranged at the lower part of the base frame with the notch facing downward, and an elastic rubber body arranged in the channel steel, the lower end surface of the elastic rubber body is lower than the lower end surface of the channel steel, a sand body filling space is arranged between the upper part of the elastic rubber body and the inner groove of the channel steel, and the sand body filling space is encapsulated with sand bodies for absorbing the vibration energy of the steel plate table when transported by the vehicle.

[0012] The setting method of the pressure equalizing ring is as follows:

[0013] A1. Design and production of simulation test tank: According to the tank design CAD revised drawing, design and produce a reduced simulation test tank in a certain proportion;

[0014] A2. Overpressure test of the simulated test tank: according to the working pressure of the tank of the large-scale high-pressure gas storage skid-mounted equipment, the overpressure test pressure of the simulated test tank is set to s times the working pressure, wherein s>1; the simulated test tank is subjected to a water pressure test under the overpressure test condition of s times the working pressure, and a π ruler is used to detect and record the expansion deformation of the outer diameter of each section of the simulated test tank under the overpressure test condition, so as to form a data curve graph of the expansion deformation curve of the outer diameter of the simulated test tank under the overpressure test condition;

[0015] A3. Design of the size of the simulated pressure equalizing ring: Based on the overall design CAD drawing of the large-scale high-pressure gas storage skid-mounted equipment, plan the boundary conditions of the number and position of the pressure equalizing rings, as well as the boundary conditions of the outer diameter, inner diameter and thickness of the pressure equalizing rings, and based on the boundary conditions of the pressure equalizing rings, obtain the boundary conditions of the simulated pressure equalizing rings that need to be configured on the simulated test tank body; then, based on the simulated test tank body's outer diameter expansion deformation curve data obtained in the overpressure test of the simulated test tank body, design the size of the simulated pressure equalizing ring: appropriately increase the size of the simulated pressure equalizing ring or increase the number of simulated pressure equalizing rings at the location where the outer diameter expansion deformation of the simulated test tank body is relatively large; appropriately reduce the size of the simulated pressure equalizing ring or reduce the number of simulated pressure equalizing rings at the location where the outer diameter expansion deformation of the simulated test tank body is relatively small, so as to achieve a balanced amount of expansion deformation of the outer diameter of the simulated test tank body under overpressure test conditions;

[0016] A4. Design of the size of pressure equalizing rings: According to the number and size of simulated pressure equalizing rings, the number and size of pressure equalizing rings on the large-scale high-pressure gas storage skid-mounted equipment are converted; the number of pressure equalizing rings on the large-scale high-pressure gas storage skid-mounted equipment is equal to the number of simulated pressure equalizing rings, and the size of the pressure equalizing rings on the large-scale high-pressure gas storage skid-mounted equipment is obtained by proportionally converting and enlarging the size of the simulated pressure equalizing rings.

[0017] Preferably, in the method A3 for setting the pressure equalizing ring, a finite element analysis element is also used to calculate the expansion and deformation of the outer diameter of the simulated test tank body after the simulated pressure equalizing ring is configured on the simulated test tank body under overpressure conditions. If necessary, the size of the simulated pressure equalizing ring is corrected until the requirement for balanced expansion and deformation of the outer diameter of the simulated test tank body is met.

[0018] In the present invention, a vibration isolation frequency adjustment device is provided on the vibration isolation component, and the vibration isolation frequency adjustment device includes a rubber hole provided on the elastic rubber body, a sealing cover plate sealing the end surface of the rubber hole of the elastic rubber body, and an inflation interface provided on the sealing cover plate; a high-pressure air pump is installed on the base frame, and the rubber hole is connected to the high-pressure air pump through the inflation interface and the inflation pipeline; a pressure transmitter is provided on the inflation pipeline, and the high-pressure air pump and the pressure transmitter are respectively connected to the controller.

[0019] Among them, the bottom of the base frame is spliced ​​by a number of the vibration isolation components, and the rubber holes on the elastic rubber body of each vibration isolation component are connected to each other through a connecting pipe; vibration sensors are respectively arranged on the base frame and the vehicle transportation steel plate table, and the vibration sensors are connected to the controller.

[0020] The controller fills a certain amount of compressed air into the rubber hole of the elastic rubber body through the high-pressure air pump to form a corresponding vibration isolation frequency.

[0021] When pressure reduction is required, the controller releases a certain amount of compressed air through the electric pressure reducing exhaust valve arranged on the inflation pipeline, so that the pressure in the rubber hole of the elastic rubber body is reduced. The pressure transmitter on the inflation pipeline is used to monitor the pressure in the rubber hole of the elastic rubber body.

[0022] Preferably, the rubber hole on the elastic rubber body is a semicircular rubber hole, and the inner hole plane of the semicircular rubber hole is located at the upper part of the semicircular rubber hole, the semicircular arc surface of the semicircular rubber hole is located at the lower part of the semicircular rubber hole, and a rubber body tensioning directional control rib plate is horizontally arranged inside the elastic rubber body and below the semicircular rubber hole; the vibration isolation assembly also includes a flexible sand bag, and the sand body is encapsulated in the flexible sand bag.

[0023] Preferably, the width of the rubber body tensioning directional control rib in the horizontal direction is equal to the diameter of the semicircular rubber hole.

[0024] Preferably, a sink groove is provided on the lower end surface of the elastic rubber body.

[0025] The large-scale high-pressure gas storage skid-mounted equipment structural design method of the present invention also includes an optimization setting method of the vibration isolation frequency on the vibration isolation component, and the optimization setting method of the vibration isolation frequency is achieved by one of the following two optimization setting methods:

[0026] One of the optimization setting methods of vibration isolation frequency: the test bench pre-adjustment optimization setting method, specifically, the skid-mounted equipment is pre-placed on the vibration test bench, the vibration test bench simulates the normal vibration conditions during vehicle transportation, and then the controller dynamically adjusts the frequency of the vibration isolation component to the optimal working condition through the vibration isolation frequency adjustment device, so as to minimize the vibration of the skid-mounted equipment;

[0027] The second method for optimizing the setting of the vibration isolation frequency: an optimization setting method based on the accumulation of experience in the actual driving dynamics of the vehicle, specifically, during the transportation process of the first skid-mounted equipment carried by the vehicle, the controller collects vibration data information in the vehicle's driving section through vibration sensors respectively arranged on the base frame and the vehicle's transportation steel plate table, and the vibration data information is associated with the vehicle's section position and the vehicle's driving speed at the section position; then, during the transportation process of the next skid-mounted equipment carried by the vehicle, the controller dynamically adjusts the vibration isolation frequency of the vibration isolation assembly in each section to the optimal working condition according to the vibration data information at different section positions, so as to minimize the vibration of the skid-mounted equipment.

[0028] The above two vibration isolation frequency optimization setting methods can be used separately or in combination.

[0029] Preferably, in the second method for optimizing the setting of the vibration isolation frequency, the controller divides the vehicle driving section into low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections according to the severity of the vibration of the vehicle transporting the steel plate tabletop in the vehicle driving section based on the vibration data information of the vehicle transporting the steel plate tabletop collected by the vibration sensor, and then calculates the average value of the vibration data information of the vehicle transporting the steel plate tabletop on the low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections respectively; based on the average value of the vibration data information of the vehicle transporting the steel plate tabletop, low-wind conditions are simulated on the vibration test bench. The vibration conditions of the steel plate table when the skid-mounted equipment is transported on low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections are measured, and the frequency of the vibration isolation component is dynamically adjusted to the optimal working condition through the vibration isolation frequency adjustment device. The inflation pressure values ​​corresponding to the rubber holes of the elastic rubber body when the vibration of the skid-mounted equipment is minimized on the low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections are recorded. During the transportation of the next skid-mounted equipment by the vehicle, the inflation pressure values ​​are adjusted accordingly according to the different risk bumpy sections where the transport vehicle is located to minimize the vibration of the skid-mounted equipment on each risk bumpy section.

[0030] In order to further improve the safety of skid-mounted equipment transportation, a further improvement scheme is: an anti-transportation side-slip device is arranged on the base frame, and the anti-transportation side-slip device includes a plurality of empty spaces arranged at the bottom of the base frame and penetrating up and down, a glue enclosure arranged in the empty spaces and penetrating up and down, a quick-setting glue tank arranged above the glue enclosure, an electric-controlled glue switch arranged on the quick-setting glue tank for controlling the glue to flow into the glue enclosure, a magnetic seat fixed on the steel plate table of the vehicle transportation by magnetic adsorption, a micro switch arranged on the magnetic seat for detecting whether the magnetic seat itself is loose, and a travel switch arranged on the magnetic seat close to the anti-slip direction side of the base frame, and the micro switch, the travel switch and the electric-controlled glue switch are respectively connected to a controller.

[0031] Preferably, the quick-setting glue box is configured as a double-chamber structure, the glue is a two-component glue and is placed in the double chambers respectively, and an electric-controlled glue switch is provided on the two chambers of the quick-setting glue box. After the electric-controlled glue switch is turned on, the two-component glue in the double chambers flow into the glue enclosure respectively and then quickly mix and solidify.

[0032] As required, the glue may also be a single-component quick-setting glue. In this case, the quick-setting glue tank may be a single-chamber tank.

[0033] Preferably, the glue enclosure cooperates with the idle gap and can move up and down, and the lower end surface of the glue enclosure is in contact with the steel plate table surface of the vehicle transporting the steel plate.

[0034] Preferably, there are multiple magnetic seats, which are respectively arranged at one side of the base frame in different anti-slip directions.

[0035] The different anti-slip directions include four anti-slip directions: front, rear, left and right.

[0036] Preferably, the different anti-skid directions may include only three anti-skid directions of the rear side, the left side and the right side, so as to prevent the skid-mounted equipment from sliding out from the left or right side or the rear side of the vehicle and causing serious safety accidents.

[0037] In the present invention, the controller is preferably an MCU controller.

[0038] In the present invention, the controller is connected to an alarm device.

[0039] In the present invention, the long strip-shaped elastic rubber body is formed by molding a rubber mold, and the semicircular hole of the elastic rubber body is provided with a draft angle along the axial direction.

[0040] In the present invention, the elastic rubber body and the channel body of the channel steel are in interference fit.

[0041] In the present invention, the magnetic seat is provided with a magnetic switch, and the micro switch and the travel switch are respectively fixed on the magnetic seat.

[0042] A safe transportation method for large-scale high-pressure gas storage skid-mounted equipment comprises the following steps:

[0043] (1) Hoisting of skid-mounted equipment: Use hoisting equipment to hoist the skid-mounted equipment onto the steel plate platform of the vehicle so that the skid-mounted equipment sits on the steel plate platform of the vehicle through the vibration isolation components on the base frame. After hoisting into place, secure the skid-mounted equipment with ropes;

[0044] (2) Setting of the anti-side slip device during transportation: a magnetic base with a micro switch and a travel switch is fixed on the vehicle transportation steel plate table by magnetic adsorption, the micro switch on the magnetic base is against the vehicle transportation steel plate table, and the travel switch on the magnetic base is arranged on the magnetic base close to the anti-slip direction side of the base frame;

[0045] (3) Vehicle transportation: The vehicle is transported from the origin to the destination according to the pre-set itinerary. During the transportation process, the anti-transport side-slip device dynamically monitors whether the skid-mounted equipment has side-slipped or shifted. When an unexpected situation occurs in the vehicle and the amount of side-slipping or shifting exceeds the set value, the side of the base frame presses the travel switch due to the overall sliding of the skid-mounted equipment. After receiving the action information of the travel opening, the controller activates the alarm device to sound an alarm and quickly opens the electric glue switch, so that the glue in the quick-setting glue tank flows into the vehicle transportation steel plate table located inside the glue enclosure of the base frame and accumulates in the glue enclosure. The glue quickly solidifies, thereby gluing and fixing the glue enclosure on the base frame to the vehicle transportation steel plate table. As more and more glue flows down, the base frame is firmly fixed on the vehicle transportation steel plate table by the quick-setting glue, thereby playing a role in preventing side-slipping during transportation.

[0046] Wherein, after the skid-mounted equipment is manufactured and assembled, the vibration isolation frequency in the skid-mounted equipment is adjusted by a controller and a vibration isolation frequency adjustment device to form an optimal vibration isolation frequency.

[0047] It should be noted that since the magnetic base is provided with a micro switch for detecting whether the magnetic base itself is loose, therefore, when the base frame does not slide sideways, if the magnetic base itself is accidentally loosened due to vehicle bumps, the controller only issues an alarm to prompt the vehicle personnel to check and does not start the electric glue switch, thereby avoiding malfunction of the electric glue switch.

[0048] In the present invention, the vehicles are designated transport vehicles of the same model.

[0049] The beneficial effects of the present invention are:

[0050] First, the present invention provides an optimization design method for a large-scale high-pressure gas storage skid-mounted equipment. By simulating an overpressure test of the test tank body, the optimization setting of the pressure equalizing ring on the outer circle of the skid-mounted equipment tank body is achieved. This can eliminate or reduce the uneven deformation of the outer circle of the tank body under the action of the internal high-pressure gas to the greatest extent, thereby helping to reduce the weak links in the strength of the tank body and avoid unsafe factors caused by local failure and damage of the tank body due to poor local strength and uneven deformation.

[0051] Second, an optimization design method for a large-scale high-pressure gas storage skid-mounted equipment of the present invention, a vibration isolation assembly is designed on the base frame of the skid-mounted equipment, and a vibration-damping and vibration-absorbing structure composed of an elastic rubber body and a sand body is used in the vibration isolation assembly. The advantages are: the elastic rubber body has a strong buffering performance for the vibration impact of the vehicle, and the sand body part can absorb a large amount of vibration energy to effectively reduce the amplitude. The combination of the two can better ensure the stability of the skid-mounted equipment transportation, thereby making the transportation of the skid-mounted equipment safer.

[0052] Third, in the optimization design method of a large-scale high-pressure gas storage skid-mounted equipment of the present invention, a vibration isolation frequency adjustment device is provided on the vibration isolation component, so that the vibration isolation frequency can be adjusted to maximize the good vibration isolation effect.

[0053] Fourth, the present invention provides an optimization design method for a large-scale high-pressure gas storage skid-mounted equipment, an optimization design of the vibration isolation frequency of the skid-mounted equipment, and an optimization setting method based on the accumulation of actual vehicle driving dynamic experience. By collecting the vibration data of the first skid-mounted equipment during transportation, the vibration isolation frequency adjustment of the next skid-mounted equipment during transportation is optimized. The controller can automatically adjust the vibration isolation frequency of the skid-mounted equipment in each section according to low-risk bumpy sections, medium-risk bumpy sections, and high-risk bumpy sections during the entire transportation process, so as to be more in line with the actual situation in the vehicle driving section, and can achieve the minimization of the vibration of the skid-mounted equipment under transportation conditions, thereby further improving the safety of skid-mounted equipment transportation.

[0054] Fifth, the present invention provides an optimized design method for large-scale high-pressure gas storage skid-mounted equipment. An anti-transport skid device is provided on the base frame, which automatically senses unexpected situations occurring during vehicle transportation, thereby effectively preventing or reducing serious safety problems caused by the skid-mounted equipment sliding off the steel plate table of the vehicle transportation, thereby avoiding or reducing unnecessary safety accidents involving personal injury and equipment property. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of an optimization design method of a large-scale high-pressure gas storage skid-mounted equipment of the present invention;

[0056] Figure 2 It is a structural schematic diagram of a skid-mounted device in a large-scale high-pressure gas storage skid-mounted device optimization design method of the present invention;

[0057] Figure 3 yes Figure 2 A cross-sectional view of the vibration isolation assembly and a schematic diagram of the connection structure between the vibration isolation assembly and the high-pressure air pump are included;

[0058] Figure 4 yes Figure 2 A top view of the lower structure of the middle base frame;

[0059] Figure 5 yes Figure 4 A schematic diagram of the structure involving the magnetic seat part.

[0060] In the figure: 1. skid-mounted equipment (tank body), 2. base frame, 3. vibration isolation assembly, 4. channel steel, 5. elastic rubber body, 6. sand body, 7. vibration isolation frequency adjustment device, 8. rubber hole, 9. sealing cover plate, 10. inflation interface, 11. high-pressure air pump, 12. inflation pipeline, 13. vehicle transportation steel plate table, 14. pressure transmitter, 15. controller, 16. electric stop valve, 17. vibration sensor, 18. rubber body tensioning directional control rib plate, 19. sink, 20. flexible sand bag, 21. anti-transport side slip device, 22. glue enclosure, 23. fast-setting glue box, 24. electric glue switch, 25. magnetic seat, 26. micro switch, 27. travel switch, 28. neutral gear, 29. magnetic switch, 30. electric pressure reducing exhaust valve, 31. equalizing ring. DETAILED DESCRIPTION

[0061] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0062] like Figures 1 to 5 The figure shows an embodiment of a large-scale high-pressure gas storage skid-mounted equipment optimization design method of the present invention, comprising the following steps:

[0063] (1) Overall design: The overall design of the skid-mounted equipment 1 is carried out according to the design requirements and operating conditions of the large-scale high-pressure gas storage skid-mounted equipment 1 and the relevant design specifications and standards of the skid-mounted equipment 1. The overall design includes the overall design of the outer structure of the skid-mounted equipment 1, the overall design of the tank structure, the overall design of the base frame 2 structure, the overall design of the structures of other components, and the overall design of the assembly connection relationship of each component, so as to form the overall design CAD drawing of the large-scale high-pressure gas storage skid-mounted equipment 1;

[0064] (2) Tank design: Carry out detailed design of the tank and form a preliminary CAD drawing of the tank design; then use finite element analysis elements to check the strength of the preliminary designed tank, and if necessary, modify the tank structure dimensions until the strength requirements are met, and form a modified CAD drawing of the tank design;

[0065] (3) Base frame design: Perform detailed design of the base frame 2 and form a preliminary CAD drawing of the base frame 2 design; then use finite element analysis elements to perform strength check on the preliminary designed base frame 2, and if necessary, modify the structural dimensions of the base frame 2 until the strength requirements are met, and form a modified CAD drawing of the base frame 2 design;

[0066] In the overall design of step (1) and the tank body design of step (2), a plurality of pressure equalizing rings 31 are arranged axially at intervals on the outer circle of the tank body of the skid-mounted equipment 1 to achieve balanced deformation of the outer circle of the tank body under high pressure;

[0067] Among them, in the overall design of step (1) and the design of the base frame 2 of step (3), a vibration isolation component 3 is arranged on the base frame 2 of the tank body of the skid-mounted equipment 1 to reduce the vibration during transportation so as to improve the safety of the skid-mounted equipment 1 during vehicle transportation; the vibration isolation component 3 includes a channel steel 4 with a notch facing downward, and an elastic rubber body 5 arranged in the channel steel 4, the lower end surface of the elastic rubber body 5 is lower than the lower end surface of the channel steel 4, a sand body filling space is arranged between the upper part of the elastic rubber body 5 and the inner groove of the channel steel 4, and the sand body filling space is encapsulated with a sand body 6 for absorbing the vibration energy of the steel plate table when transported by the vehicle.

[0068] The setting method of the pressure equalizing ring 31 is as follows:

[0069] A1. Design and production of simulation test tank: According to the tank design CAD revised drawing, design and produce a reduced simulation test tank in a certain proportion;

[0070] A2. Overpressure test of the simulated test tank: according to the working pressure of the tank of the large-scale high-pressure gas storage skid-mounted equipment 1, the overpressure test pressure of the simulated test tank is set to s times the working pressure, wherein s>1; the simulated test tank is subjected to a water pressure test under the overpressure test condition of s times the working pressure, and a π ruler is used to detect and record the expansion deformation of the outer diameter of each section of the simulated test tank under the overpressure test condition, so as to form a data curve graph of the expansion deformation curve of the outer diameter of the simulated test tank under the overpressure test condition;

[0071] A3. Design of the size of the simulated pressure equalizing ring: According to the overall design CAD drawing of the large-scale high-pressure gas storage skid-mounted equipment 1, the boundary conditions of the number and position of the pressure equalizing ring 31, as well as the boundary conditions of the outer diameter, inner diameter and thickness of the pressure equalizing ring 31 are planned, and according to the boundary conditions of the pressure equalizing ring 31, the boundary conditions of the simulated pressure equalizing ring that needs to be configured on the simulated test tank body are obtained; then, according to the simulated test tank body outer diameter expansion deformation curve data obtained in the overpressure test of the simulated test tank body, the size of the simulated pressure equalizing ring is designed: at the position where the outer diameter expansion deformation of the simulated test tank body is relatively large, the size of the simulated pressure equalizing ring is appropriately increased or the number of simulated pressure equalizing rings is increased; at the position where the outer diameter expansion deformation of the simulated test tank body is relatively small, the size of the simulated pressure equalizing ring is appropriately reduced or the number of simulated pressure equalizing rings is reduced, so as to achieve the balance of the outer diameter expansion deformation of the simulated test tank body under the overpressure test condition;

[0072] A4. Design of the size of the pressure equalizing rings: According to the number and size of the simulated pressure equalizing rings, the number and size of the pressure equalizing rings 31 on the large-scale high-pressure gas storage skid-mounted equipment 1 are converted; the number of the pressure equalizing rings 31 on the large-scale high-pressure gas storage skid-mounted equipment 1 is equal to the number of the simulated pressure equalizing rings, and the size of the pressure equalizing rings 31 on the large-scale high-pressure gas storage skid-mounted equipment 1 is obtained by proportionally converting and enlarging the size of the simulated pressure equalizing rings.

[0073] Preferably, in the method A3 for setting the pressure equalizing ring, a finite element analysis element is also used to calculate the expansion and deformation of the outer diameter of the simulated test tank body after the simulated pressure equalizing ring is configured on the simulated test tank body under overpressure conditions. If necessary, the size of the simulated pressure equalizing ring is corrected until the requirement for balanced expansion and deformation of the outer diameter of the simulated test tank body is met.

[0074] In this embodiment, a vibration isolation frequency adjustment device 7 is provided on the vibration isolation component 3, and the vibration isolation frequency adjustment device 7 includes a rubber hole 8 provided on the elastic rubber body 5, a sealing cover plate 9 sealing the end surface of the rubber hole 8 of the elastic rubber body 5, and an inflation interface 10 provided on the sealing cover plate 9; a high-pressure air pump 11 is installed on the base frame 2, and the rubber hole 8 is connected to the high-pressure air pump 11 through the inflation interface 10 and the inflation pipeline 12; a pressure transmitter 14 is provided on the inflation pipeline 12, and the high-pressure air pump 11 and the pressure transmitter 14 are respectively connected to the controller 15.

[0075] Among them, the bottom of the base frame 2 is spliced ​​by a number of the vibration isolation components 3, and the rubber holes 8 on the elastic rubber body 5 of each vibration isolation component 3 are connected to each other through a connecting pipe; vibration sensors 17 are respectively arranged on the base frame 2 and the vehicle transport steel plate table 13, and the vibration sensor 17 is connected to the controller 15.

[0076] The controller 15 fills a certain amount of compressed air into the rubber hole 8 of the elastic rubber body 5 through the high-pressure air pump 11 to form a corresponding vibration isolation frequency.

[0077] When pressure reduction is required, the controller 15 releases a certain amount of compressed air through the electric pressure reducing exhaust valve 30 provided on the inflation pipeline 12, so that the pressure in the rubber hole 8 of the elastic rubber body 5 is reduced. The pressure transmitter 14 on the inflation pipeline 12 is used to monitor the pressure in the rubber hole 8 of the elastic rubber body 5.

[0078] Preferably, the rubber hole 8 on the elastic rubber body 5 is a semicircular rubber hole, and the inner hole plane of the semicircular rubber hole is located at the upper part of the semicircular rubber hole, and the semicircular arc surface of the semicircular rubber hole is located at the lower part of the semicircular rubber hole. A rubber body tensioning directional control rib plate 18 is horizontally arranged inside the elastic rubber body 5 and below the semicircular rubber hole; the vibration isolation assembly 3 also includes a flexible sand bag 20, and the sand body 6 is encapsulated in the flexible sand bag 20.

[0079] Preferably, the width of the rubber body tensioning directional control rib 18 in the horizontal direction is equal to the diameter of the semicircular rubber hole.

[0080] Preferably, a sink groove 19 is provided on the lower end surface of the elastic rubber body 5 .

[0081] The structural design method of the large-scale high-pressure gas storage skid-mounted equipment of this embodiment also includes an optimization setting method of the vibration isolation frequency on the vibration isolation component 3, and the optimization setting method of the vibration isolation frequency is achieved by one of the following two optimization setting methods:

[0082] One of the optimization setting methods of the vibration isolation frequency: the test bench pre-adjustment optimization setting method, specifically, the skid-mounted equipment 1 is pre-placed on the vibration test bench, the vibration test bench simulates the normal vibration conditions during vehicle transportation, and then the controller 15 dynamically adjusts the frequency of the vibration isolation component 3 to the optimal working condition through the vibration isolation frequency adjustment device 7, so that the vibration of the skid-mounted equipment 1 is minimized;

[0083] The second method for optimizing the setting of the vibration isolation frequency: the optimization setting method based on the accumulation of experience in the actual driving dynamics of the vehicle, specifically, during the transportation process of the first skid-mounted equipment 1 carried by the vehicle, the controller 15 collects vibration data information in the vehicle driving section through vibration sensors 17 respectively arranged on the base frame 2 and the vehicle transportation steel plate table 13, and the vibration data information is associated with the vehicle's section position and the vehicle's driving speed at the section position; then, during the transportation process of the next skid-mounted equipment 1 carried by the vehicle, the controller 15 dynamically adjusts the vibration isolation frequency of the vibration isolation component 3 in each section to the optimal working condition according to the vibration data information at different section positions, so as to minimize the vibration of the skid-mounted equipment 1.

[0084] The above two vibration isolation frequency optimization setting methods can be used separately or in combination.

[0085] Preferably, in the second method for optimizing the setting of the vibration isolation frequency, the controller divides the vehicle driving section into a low-risk bumpy section, a medium-risk bumpy section and a high-risk bumpy section according to the severity of the vibration of the vehicle transporting the steel plate table 13 based on the vibration data information of the vehicle transporting the steel plate table 13 in the vehicle driving section collected by the vibration sensor 17, and then calculates the average value of the vibration data information of the vehicle transporting the steel plate table 13 on the low-risk bumpy section, the medium-risk bumpy section and the high-risk bumpy section respectively, and simulates the low-risk bumpy section, the medium-risk bumpy section and the high-risk bumpy section respectively according to the average value of the vibration data information of the vehicle transporting the steel plate table 13 on the vibration test bench. The vibration conditions of the steel plate table 13 for vehicle transportation on risky bumpy sections, medium-risk bumpy sections and high-risk bumpy sections are measured, and the frequency of the vibration isolation component 3 is dynamically adjusted to the optimal working condition through the vibration isolation frequency adjustment device 7. The inflation pressure values ​​corresponding to the rubber holes 8 of the elastic rubber body 5 when the vibration of the skid-mounted equipment on the low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections are recorded. Then, during the transportation of the next skid-mounted equipment 1 by the vehicle, the inflation pressure values ​​are adjusted accordingly according to the different risk bumpy sections where the transport vehicle is located to minimize the vibration of the skid-mounted equipment 1 on each risk bumpy section.

[0086] In order to further improve the safety of skid-mounted equipment transportation, a further improvement scheme is: an anti-transport side-slip device 21 is arranged on the base frame 2, and the anti-transport side-slip device 21 includes a plurality of gaps 28 arranged at the bottom of the base frame 2 and penetrating up and down, a glue enclosure 22 arranged in the gaps 28 and penetrating up and down, a quick-setting glue box 23 arranged above the glue enclosure 22, an electric-controlled glue switch 24 arranged on the quick-setting glue box 23 for controlling the glue to flow into the glue enclosure 22, a magnetic seat fixed on the steel plate table of the vehicle transportation by magnetic adsorption, a micro switch arranged on the magnetic seat for detecting whether the magnetic seat itself is loose, and a travel switch arranged on the magnetic seat close to the anti-slip direction side of the base frame, and the micro switch, the travel switch and the electric-controlled glue switch are respectively connected to the controller.

[0087] Preferably, the quick-setting glue tank 23 is configured as a double-chamber structure, the glue is a two-component glue and is placed in the double chambers respectively, and an electric-controlled glue switch 24 is respectively provided on the two chambers of the quick-setting glue tank 23. After the electric-controlled glue switch 24 is turned on, the two-component glue in the double chambers flow into the glue enclosure 22 respectively, and then quickly mix and solidify.

[0088] As required, the glue may also be a single-component quick-setting glue. In this case, the quick-setting glue tank 23 may be a single-chamber tank.

[0089] Preferably, the glue enclosure 22 is clearance-matched with the idler 28 and can move up and down, and the lower end surface of the glue enclosure 22 is in contact with the vehicle transport steel plate table 13.

[0090] Preferably, there are multiple magnetic seats 25 , which are respectively arranged at one side of the base frame 2 in different anti-slip directions.

[0091] The different anti-slip directions include four anti-slip directions: front, rear, left and right.

[0092] Preferably, the different anti-skid directions may include only three anti-skid directions of the rear side, the left side and the right side, so as to prevent the skid-mounted equipment 1 from sliding out from the left or right side or the rear side of the vehicle and causing serious safety accidents.

[0093] In this embodiment, the controller 15 is preferably an MCU controller.

[0094] In this embodiment, the controller 15 is connected to an alarm device.

[0095] In this embodiment, the long strip-shaped elastic rubber body 5 is formed by molding a rubber mold, and the semicircular hole of the elastic rubber body 5 is provided with a draft angle along the axial direction.

[0096] In this embodiment, the elastic rubber body 5 and the channel body of the channel steel 4 are in interference fit.

[0097] In this embodiment, the magnetic base 25 has a magnetic switch, and the micro switch 26 and the travel switch 27 are respectively fixed on the magnetic base 25.

[0098] A safe transportation method for large-scale high-pressure gas storage skid-mounted equipment comprises the following steps:

[0099] (1) Hoisting of skid-mounted equipment: Use hoisting equipment to hoist the skid-mounted equipment 1 onto the steel plate platform 13 for vehicle transportation, so that the skid-mounted equipment 1 is seated on the steel plate platform 13 for vehicle transportation through the channel-type vibration isolation assembly 3 on the base frame 2. After hoisting into place, use ropes to secure the skid-mounted equipment 1;

[0100] (2) Setting of the anti-side slip device during transportation: The magnetic base 25 with the micro switch 26 and the travel switch 27 is fixed on the vehicle transportation steel plate table 13 by magnetic adsorption, the micro switch 26 on the magnetic base 25 is against the vehicle transportation steel plate table 13, and the travel switch 27 on the magnetic base 25 is arranged on the magnetic base 25 close to the anti-slip direction side of the base frame 2;

[0101] (3) Vehicle transportation: The vehicle is transported from the origin to the destination according to the pre-set itinerary. During the transportation process, the anti-transport side-slip device 21 dynamically monitors whether the skid-mounted equipment 1 has side-slipped or shifted. When an unexpected situation occurs in the vehicle and the amount of side-slipping or shifting exceeds the set value, the side of the base frame 2 presses the travel switch 27 due to the overall sliding of the skid-mounted equipment 1. After receiving the action information of the travel switch 27, the controller activates the alarm device to sound an alarm and quickly opens the electric glue switch 24, so that the glue in the quick-setting glue tank 23 flows into the vehicle transportation steel plate table 13 located inside the glue enclosure 22 of the base frame 2 and accumulates in the glue enclosure 22. The glue quickly solidifies, thereby gluing and fixing the glue enclosure 22 on the base frame 2 to the vehicle transportation steel plate table 13. As more and more glue flows down, the base frame 2 is firmly fixed on the vehicle transportation steel plate table 13 by the quick-setting glue, thereby playing a role in preventing side-slipping during transportation.

[0102] After the skid-mounted device 1 is manufactured and assembled, the vibration isolation frequency in the skid-mounted device 1 is adjusted by the controller 15 and the vibration isolation frequency adjustment device 7 to form an optimal vibration isolation frequency.

[0103] It should be noted that since the magnetic seat 25 is provided with a micro switch 26 for detecting whether the magnetic seat 25 itself is loose, therefore, when the base frame 2 does not slide sideways, if the magnetic seat 25 itself is accidentally loosened due to vehicle bumps, the controller 15 only issues an alarm to prompt the vehicle personnel to check and does not start the electric glue switch 24, thereby avoiding malfunction of the electric glue switch 24.

[0104] In this embodiment, the vehicles are designated transport vehicles of the same model.

[0105] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A large-scale high-pressure gas storage skid-mounted equipment optimization design method, characterized in that: The steps include: (1) Overall design: The overall design of the skid-mounted equipment shall be carried out according to the design requirements and operating conditions of the large-scale high-pressure gas storage skid-mounted equipment and in accordance with the relevant design specifications and standards of the skid-mounted equipment. The overall design includes the overall design of the skid-mounted equipment's external structure, the overall design of the tank structure, the overall design of the base frame structure, the overall design of the structures of other components, and the overall design of the assembly and connection relationship of each component, so as to form the overall design CAD drawing of the large-scale high-pressure gas storage skid-mounted equipment; (2) Tank design: Carry out detailed design of the tank and form a preliminary CAD drawing of the tank design; then use finite element analysis elements to check the strength of the preliminary designed tank, and if necessary, modify the tank structure dimensions until the strength requirements are met, and form a modified CAD drawing of the tank design; (3) Base frame design: Carry out detailed design of the base frame and form a preliminary CAD drawing of the base frame design; Then, the finite element analysis element is used to check the strength of the preliminarily designed base frame, and the base frame structure dimensions are modified if necessary until the strength requirements are met, and a CAD correction drawing of the base frame design is formed; In the overall design of step (1) and the tank body design of step (2), a plurality of pressure equalizing rings are arranged axially at intervals on the outer circle of the tank body of the skid-mounted equipment to achieve balanced deformation of the outer circle of the tank body under high pressure; In the overall design of step (1) and the base frame design of step (3), a vibration isolation assembly is provided on the base frame of the skid-mounted equipment tank body to reduce vibration during transportation so as to improve the safety of the skid-mounted equipment during vehicle transportation; the vibration isolation assembly comprises a channel steel arranged at the lower part of the base frame with the notch facing downward, and an elastic rubber body arranged in the channel steel, wherein the lower end surface of the elastic rubber body is lower than the lower end surface of the channel steel, a sand body filling space is provided between the upper part of the elastic rubber body and the inner groove of the channel steel, and the sand body filling space is encapsulated with sand bodies for absorbing the vibration energy of the steel plate table when transported by the vehicle; The setting method of the pressure equalizing ring is as follows: A1. Design and production of simulation test tank: According to the tank design CAD revised drawing, design and produce a reduced simulation test tank in proportion; A2. Overpressure test of the simulated test tank: according to the working pressure of the tank of the large-scale high-pressure gas storage skid-mounted equipment, the overpressure test pressure of the simulated test tank is set to s times the working pressure, wherein s>1; the simulated test tank is subjected to a water pressure test under the overpressure test condition of s times the working pressure, and a π ruler is used to detect and record the expansion deformation of the outer diameter of each section of the simulated test tank under the overpressure test condition, so as to form a data curve graph of the expansion deformation curve of the outer diameter of the simulated test tank under the overpressure test condition; A3. Design of the size of the simulated pressure equalizing ring: Based on the overall design CAD drawing of the large-scale high-pressure gas storage skid-mounted equipment, plan the boundary conditions of the number and position of the pressure equalizing rings, as well as the boundary conditions of the outer diameter, inner diameter and thickness of the pressure equalizing rings, and based on the boundary conditions of the pressure equalizing rings, obtain the boundary conditions of the simulated pressure equalizing rings that need to be configured on the simulated test tank body; then, based on the simulated test tank body's outer diameter expansion deformation curve data obtained in the overpressure test of the simulated test tank body, design the size of the simulated pressure equalizing ring: increase the size of the simulated pressure equalizing ring or increase the number of simulated pressure equalizing rings at the location where the simulated test tank body's outer diameter expansion deformation is large, and reduce the size of the simulated pressure equalizing ring or reduce the number of simulated pressure equalizing rings at the location where the simulated test tank body's outer diameter expansion deformation is small, so as to achieve a balanced amount of expansion deformation of the simulated test tank body's outer diameter under overpressure test conditions; A4. Design of the size of pressure equalizing rings: According to the number and size of simulated pressure equalizing rings, the number and size of pressure equalizing rings on the large-scale high-pressure gas storage skid-mounted equipment are converted; the number of pressure equalizing rings on the large-scale high-pressure gas storage skid-mounted equipment is equal to the number of simulated pressure equalizing rings, and the size of the pressure equalizing rings on the large-scale high-pressure gas storage skid-mounted equipment is obtained by proportionally converting and enlarging the size of the simulated pressure equalizing rings.

2. The optimization design method for large-scale high-pressure gas storage skid-mounted equipment according to claim 1 is characterized in that: In the pressure equalizing ring setting method A3, a finite element analysis element is also used to calculate the expansion and deformation of the outer diameter of the simulated test tank body after the simulated pressure equalizing ring is configured on the simulated test tank body under overpressure conditions. If necessary, the size of the simulated pressure equalizing ring is corrected until the requirement for balanced expansion and deformation of the outer diameter of the simulated test tank body is met.

3. The optimization design method for large-scale high-pressure gas storage skid-mounted equipment according to claim 1 is characterized in that: The vibration isolation component is provided with a vibration isolation frequency adjustment device, and the vibration isolation frequency adjustment device includes a rubber hole arranged on the elastic rubber body, a sealing cover plate sealing the end surface of the rubber hole of the elastic rubber body, and an inflation interface arranged on the sealing cover plate; a high-pressure air pump is installed on the base frame, and the rubber hole is connected to the high-pressure air pump through the inflation interface and the inflation pipeline; a pressure transmitter is provided on the inflation pipeline, and the high-pressure air pump and the pressure transmitter are respectively connected to the controller.

4. The optimization design method for large-scale high-pressure gas storage skid-mounted equipment according to claim 3 is characterized in that: The bottom of the base frame is formed by splicing a plurality of the vibration isolation components, and the rubber holes on the elastic rubber bodies of the vibration isolation components are interconnected through connecting pipes; vibration sensors are respectively arranged on the base frame and the vehicle transport steel plate table, and the vibration sensors are connected to the controller.

5. The optimization design method for large-scale high-pressure gas storage skid-mounted equipment according to claim 4 is characterized in that: The rubber hole on the elastic rubber body is a semicircular rubber hole, and the inner hole plane of the semicircular rubber hole is located at the upper part of the semicircular rubber hole, and the semicircular arc surface of the semicircular rubber hole is located at the lower part of the semicircular rubber hole. A rubber body tensioning directional control rib plate is horizontally arranged inside the elastic rubber body and below the semicircular rubber hole; the vibration isolation assembly also includes a flexible sand bag, and the sand body is encapsulated in the flexible sand bag.

6. The optimization design method for large-scale high-pressure gas storage skid-mounted equipment according to claim 5 is characterized in that: The large-scale high-pressure gas storage skid-mounted equipment structure design method also includes an optimization setting method of the vibration isolation frequency on the vibration isolation component, and the optimization setting method of the vibration isolation frequency is achieved by one of the following two optimization setting methods: One of the optimization setting methods of vibration isolation frequency: the test bench pre-adjustment optimization setting method, specifically, the skid-mounted equipment is pre-placed on the vibration test bench, the vibration test bench simulates the normal vibration conditions during vehicle transportation, and then the controller dynamically adjusts the frequency of the vibration isolation component to the optimal working condition through the vibration isolation frequency adjustment device, so as to minimize the vibration of the skid-mounted equipment; The second method for optimizing the setting of the vibration isolation frequency: an optimization setting method based on the accumulation of experience in the actual driving dynamics of the vehicle, specifically, during the transportation process of the first skid-mounted equipment carried by the vehicle, the controller collects vibration data information in the vehicle's driving section through vibration sensors respectively arranged on the base frame and the vehicle's transportation steel plate table, and the vibration data information is associated with the vehicle's section position and the vehicle's driving speed at the section position; then, during the transportation process of the next skid-mounted equipment carried by the vehicle, the controller dynamically adjusts the vibration isolation frequency of the vibration isolation assembly in each section to the optimal working condition according to the vibration data information at different section positions, so as to minimize the vibration of the skid-mounted equipment.

7. The optimization design method for large-scale high-pressure gas storage skid-mounted equipment according to claim 6 is characterized in that: In the second method for optimizing the setting of the vibration isolation frequency, the controller divides the vehicle driving section into low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections according to the severity of the vibration of the vehicle transporting steel plate tabletop in the vehicle driving section based on the vibration data information of the vehicle transporting steel plate tabletop collected by the vibration sensor, and then calculates the average value of the vibration data information of the vehicle transporting steel plate tabletop on the low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections respectively; based on the average value of the vibration data information of the vehicle transporting steel plate tabletop, the low-risk bumpy sections are simulated on the vibration test bench respectively. The vibration conditions of the steel plate table when the skid-mounted equipment is transported on low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections are measured, and the frequency of the vibration isolation component is dynamically adjusted to the optimal working condition through the vibration isolation frequency adjustment device. The inflation pressure value corresponding to the rubber hole of the elastic rubber body when the vibration of the skid-mounted equipment is minimized on the low-risk bumpy sections, medium-risk bumpy sections and high-risk bumpy sections is recorded. During the transportation of the next skid-mounted equipment by the vehicle, the inflation pressure value is adjusted accordingly according to the different risk bumpy sections where the transport vehicle is located to minimize the vibration of the skid-mounted equipment on each risk bumpy section.

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