Methanol filling pump skid device

Abstract

The utility model belongs to the technical field of methanol filling, and particularly relates to a methanol filling pump skid device which comprises a base and a protective component, the protective component is fixed on the base, a storage tank is arranged in an enclosed area of the base and the protective component, a filling component and a nitrogen storage component are respectively arranged on the storage tank, and methanol is stored in the storage tank. The protection component plays a role in protecting the storage tank, the storage tank can fill methanol into external equipment through the filling component, after methanol in the storage tank is extracted, the liquid level of methanol in the storage tank is lowered, the space above the storage tank is enlarged, and the nitrogen storage component supplements nitrogen into the storage tank, so that air pressure inside and outside the storage tank is balanced; and air and combustible or combustion-supporting gas are prevented from being mixed into the storage tank, so that the risk of explosion of the storage tank is reduced, and the safety of the methanol filling pump skid device in transportation and use is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of methanol filling, and in particular relates to a methanol filling pump skid device. Background Art

[0002] The existing methanol filling pump skid device is prone to mixing with air, flammable or combustion-supporting gases above the liquid level in the methanol storage tank, thereby increasing the risk of explosion of the storage tank;

[0003] For example, in the new injection modulation skid with patent application number CN20232318594.7, a water tank, a methanol tank, a foaming agent tank, a corrosion inhibitor tank and a defoaming agent tank are installed on the base of the modulation skid body, the water tank and the methanol tank are connected to the infusion pump through pipelines, and the output end of the infusion pump is connected to the wellhead through a pipeline; the output ends of the foaming agent tank, the corrosion inhibitor tank and the defoaming agent tank are respectively connected to the gear pump through pipelines, and the output ends are connected to the wellhead through pipelines. However, the disadvantage of this technical solution is that air, flammable or combustion-supporting gases are easily mixed into the liquid surface above the methanol storage tank, thereby increasing the risk of explosion of the storage tank. Utility Model Content

[0004] The purpose of the utility model is to provide a methanol filling pump skid device to solve the problems in the prior art. The specific technical solution is as follows:

[0005] A methanol filling pump skid device comprises a base and a protective component, wherein the protective component is fixed on the base, a storage tank is arranged in an area enclosed by the base and the protective component, and a filling component and a nitrogen storage component are respectively arranged on the storage tank.

[0006] Furthermore, the protective component includes a protective frame and a tail frame, the tail frame is plugged into one side of the protective frame, the protective frame is fixed on the base, the protective frame is rotatably connected to one end of the baffle, and the other end of the baffle is fixed to the protective frame by a pin.

[0007] Furthermore, the storage tank is provided with a liquid inlet pipe, and a ball valve 1 is provided in the liquid inlet pipe.

[0008] Furthermore, the storage tank is fixedly connected to the liquid level detector, and the detection end of the liquid level detector is inserted into the storage tank.

[0009] Furthermore, the storage tank is threadedly connected to the sealing cylinder, a sealing ring is provided between the storage tank and the sealing cylinder, the sealing cylinder is communicated with the inside of the storage tank, the sealing cylinder is fixedly connected to the pressure gauge, and the detection end of the pressure gauge is inserted into the sealing cylinder.

[0010] Furthermore, the filling component includes a liquid outlet pipe, one end of which is fixed to the side of the storage tank, and the other end of the liquid outlet pipe is connected to the explosion-proof pump. A connecting pipe is provided between the explosion-proof pump and the filling gun.

[0011] Furthermore, the filling gun is plugged into the shell, the shell is fixed on the outside of the protective frame, the explosion-proof pump is fixed on the shell, a protective shell is provided on the outside of the shell, a meter is provided on the shell, and the meter is electrically connected to the explosion-proof pump.

[0012] Furthermore, a chamber three is provided in the shell, the front end of the filling gun is inserted into the chamber three, a drain pipe is provided at the lower end of the shell, the drain pipe is connected to the chamber three, and a valve body is provided in the drain pipe.

[0013] Furthermore, the nitrogen storage component includes a delivery pipe, one end of which is fixed on the storage tank, and the other end of which is respectively fixed to three gas storage tanks. A second ball valve is provided in the delivery pipe, and the delivery pipe is fixedly connected to an air inlet pipe, and a third ball valve is provided in the air inlet pipe. An air outlet pipe is fixed on the storage tank, and a fifth ball valve is provided in the air outlet pipe. A guide plate is fixed inside the storage tank, and the guide plate is located between the delivery pipe and the air outlet pipe.

[0014] Furthermore, the base is fixedly connected to the bracket, and the three gas tanks are fixed on the bracket. Ball valves 4 are provided at the connections between the three gas tanks and the delivery pipes. A piston rod is slidably connected inside the gas tank, and the piston rod divides the interior of the gas tank into chamber one and chamber two.

[0015] The advantages of the utility model are:

[0016] Methanol is stored in a storage tank. The protective components protect the storage tank. The storage tank can be filled with methanol from external equipment through the filling components. After the methanol in the storage tank is extracted, the methanol liquid level in the storage tank drops, and the space above the storage tank becomes larger. The nitrogen storage component replenishes nitrogen into the storage tank to balance the air pressure inside and outside the storage tank, avoiding the mixing of air, flammable or combustion-supporting gases into the storage tank, thereby reducing the risk of explosion of the storage tank and ensuring the safety of the methanol filling pump skid device during transportation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0020] Figure 4 The overall structure of the utility model is shown in FIG. Figure 4 ;

[0021] Figure 5 for Figure 4 A partial enlarged view of the middle part;

[0022] Figure 6 Schematic diagram of the overall structure of the present utility model Figure 5 ;

[0023] Figure 7 Schematic diagram of the overall structure of the present utility model Figure 6 ;

[0024] Figure 8 Schematic diagram of the overall structure of the present utility model Figure 7 ;

[0025] Description of the marks in the figure:

[0026] Base 1; protective frame 2; storage tank 3; tail frame 4; baffle 5; pin 6; liquid inlet pipe 7; ball valve 1 8; liquid level detector 9; pressure gauge 10; sealing cylinder 11; liquid outlet pipe 12; explosion-proof pump 13; connecting pipe 14; filling gun 15; housing 16; protective shell 17; meter 18; guide plate 19; conveying pipe 20; ball valve 2 21; air inlet pipe 22; ball valve 3 23; bracket 24; gas storage tank 25; piston rod 26; chamber 1 27; chamber 2 28; ball valve 4 29; chamber 3 30; air outlet pipe 31; ball valve 5 32. Specific embodiments

[0027] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] Embodiment 1

[0030] As Figures 1-8 shown, a methanol filling pump skid device includes a base 1 and a protective component. The protective component is fixed on the base 1, and a storage tank 3 is provided in the area enclosed by the base 1 and the protective component. A filling component and a nitrogen storage component are respectively provided on the storage tank 3.

[0031] Working principle of the above technical solution: Methanol is stored in storage tank 3. The protection component plays a role in protecting storage tank 3. Storage tank 3 can fill methanol into external equipment through the filling component. After the methanol in storage tank 3 is pumped out, the liquid level of methanol in storage tank 3 drops, the space above storage tank 3 becomes larger, and the nitrogen storage component replenishes nitrogen into storage tank 3 to balance the internal and external air pressures of storage tank 3, avoiding the mixing of combustible or combustion-supporting gases into storage tank 3, thereby reducing the explosion risk of storage tank 3 and ensuring the safety of the methanol filling pump skid device during transportation and use;

[0032] Both sides of the base 1 are provided with grooves, which are convenient for grasping and convenient for lifting the methanol filling pump skid device and placing it on the transport vehicle.

[0033] Embodiment 2

[0034] As Figures 1-8 shown, the protection component includes a protection frame 2 and a tail frame 4. The tail frame 4 is inserted into one side of the protection frame 2. The protection frame 2 is fixed on the base 1. One end of the protection frame 2 is rotatably connected to a baffle 5, and the other end of the baffle 5 is fixed to the protection frame 2 through a pin 6;

[0035] Working principle of the above technical solution: Remove the pin 6 and rotate the baffle 5, then the tail frame 4 can be pulled out from the protection frame 2, and further the storage tank 3 can be pulled out from the protection frame 2, which is convenient for cleaning, repairing or replacing the storage tank 3.

[0036] Embodiment 3

[0037] As Figures 1-8 shown, a liquid inlet pipe 7 is provided on the storage tank 3, and a ball valve 8 is provided in the liquid inlet pipe 7;

[0038] The storage tank 3 is fixedly connected to a liquid level detector 9, and the detection end of the liquid level detector 9 is inserted into the storage tank 3;

[0039] Working principle of the above technical solution: Open the ball valve 8 to fill methanol into the storage tank 3 through the liquid inlet pipe 7. The liquid level detector 9 can detect the height of the methanol liquid level in the storage tank 3. When the methanol is filled to the preset liquid level, stop filling methanol into the storage tank 3 and close the ball valve 8.

[0040] Embodiment 4

[0041] As Figures 1-8 shown, the storage tank 3 is threadedly connected to a sealing cylinder 11. A sealing ring is provided between the storage tank 3 and the sealing cylinder 11. The sealing cylinder 11 is internally connected to the storage tank 3. The sealing cylinder 11 is fixedly connected to a pressure gauge 10, and the detection end of the pressure gauge 10 is inserted into the sealing cylinder 11;

[0042] Working principle of the above technical solution: The storage tank 3 is threadedly installed with the sealing cylinder 11. The sealing ring between the storage tank 3 and the sealing cylinder 11 plays a role in enhancing the sealing performance, enabling the storage tank 3 and the sealing cylinder 11 to form an integral space. However, the liquid level of methanol stored in the storage tank 3 always remains below the top surface of the storage tank 3, and the detection end of the pressure gauge 10 can never come into contact with methanol, preventing methanol from affecting the accuracy of the pressure gauge 10 in detecting the nitrogen pressure inside the storage tank 3.

[0043] Example Five

[0044] As Figures 1-8 shown, the filling component includes a liquid outlet pipe 12. One end of the liquid outlet pipe 12 is fixed to the side of the storage tank 3, and the other end of the liquid outlet pipe 12 is connected to an explosion-proof pump 13. A connecting pipe 14 is provided between the explosion-proof pump 13 and the filling gun 15;

[0045] The filling gun 15 is inserted into the housing 16. The housing 16 is fixed to the outside of the protective frame 2. The explosion-proof pump 13 is fixed to the housing 16. A protective shell 17 is provided outside the housing 16. A meter 18 is provided on the housing 16, and the meter 18 is electrically connected to the explosion-proof pump 13;

[0046] A chamber three 30 is provided inside the housing 16. The front end of the filling gun 15 is inserted into the chamber three 30. A drain pipe is provided at the lower end of the housing 16, and the drain pipe is communicated with the chamber three 30. A valve body is provided inside the drain pipe;

[0047] Working principle of the above technical solution: When it is necessary to fill methanol into an external device, the amount to be filled is input on the meter 18. The meter 18 controls the explosion-proof pump 13 to start, extracts the methanol in the storage tank 3 from the liquid outlet pipe 12, passes through the explosion-proof pump 13 and the connecting pipe 14, and then enters the external device from the filling gun 15. When the amount of filled methanol reaches the preset value, the meter 18 controls the explosion-proof pump 13 to stop working;

[0048] The protective shell 17 plays a role in protecting the explosion-proof pump 13, preventing corrosion of the explosion-proof pump 13 by rainwater, etc.;

[0049] The front end of the filling gun 15 is inserted into the chamber three 30. The residual methanol in the filling gun 15 can drip into the chamber three 30. When the methanol accumulated in the chamber three 30 reaches a certain amount, the valve body in the drain pipe at the lower end of the chamber three 30 is opened, and the methanol in the chamber three 30 can be taken out. This valve can be a ball valve to prevent the residual methanol in the filling gun 15 from dripping onto the outside and causing waste of methanol.

[0050] Example Six

[0051] As Figures 1-8As shown in the figure, the nitrogen storage component includes a delivery pipe 20. One end of the delivery pipe 20 is fixed to the storage tank 3, and the other end of the delivery pipe 20 is respectively fixed to three gas storage tanks 25. A second ball valve 21 is provided in the delivery pipe 20. The delivery pipe 20 is fixedly connected to an intake pipe 22. A third ball valve 23 is provided in the intake pipe 22. An outlet pipe 31 is fixed to the storage tank 3. A fifth ball valve 32 is provided in the outlet pipe 31. A flow guide plate 19 is fixed inside the storage tank 3, and the flow guide plate 19 is located between the delivery pipe 20 and the outlet pipe 31.

[0052] The base 1 is fixedly connected to the support 24. All three gas storage tanks 25 are fixed to the support 24. A fourth ball valve 29 is provided at the connection of each of the three gas storage tanks 25 and the delivery pipe 20. A piston rod 26 is slidably connected inside the gas storage tank 25. The piston rod 26 divides the interior of the gas storage tank 25 into a first chamber 27 and a second chamber 28.

[0053] The working principle of the above technical solution: The volumes of the three gas storage tanks 25 and the storage tank 3 are similar. The second ball valve 21 and the three fourth ball valves 29 are in the normally open state. When there is no methanol in the storage tank 3, the piston rod 26 is located at the end of the gas storage tank 25 closest to the fourth ball valve 29. At this time, the volume of the second chamber 28 reaches the maximum, and the volume of the first chamber 27 reaches the minimum. Nitrogen is stored in the storage tank 3. Open the first ball valve 8, and inject methanol into the storage tank 3 through the liquid inlet pipe 7. As the methanol liquid level in the storage tank 3 continuously rises, the nitrogen is squeezed from the delivery pipe 20 into the three gas storage tanks 25, squeezing the piston rod 26 to move away from the fourth ball valve 29. The volume of the second chamber 28 continuously decreases, and the volume of the first chamber 27 continuously increases. The nitrogen in the storage tank 3 enters the three first chambers 27, and the air in the second chamber 28 is discharged from the tail of the gas storage tank 25 until the liquid level detector 9 detects that the liquid level of methanol reaches the preset value, then stop adding methanol to the storage tank 3 and close the first ball valve 8;

[0054] When the methanol in the storage tank 3 is pumped outwards through the filling component, the methanol liquid level in the storage tank 3 drops, the gas space above the methanol becomes larger, and the air pressure becomes smaller. The external atmospheric pressure squeezes the three piston rods 26 to move towards the fourth ball valve 29, squeezing the nitrogen in the three first chambers 27 to enter the storage tank 3 through the delivery pipe 20 to balance the air pressure inside it. External air enters the second chamber 28 from the filter screen at the tail end of the gas storage tank 25. Whether methanol is replenished into the storage tank 3 or pumped outwards from the storage tank 3, the gas in the storage tank 3 is nitrogen, avoiding the mixing of combustible or combustion-supporting gases into the storage tank 3, thereby reducing the risk of explosion of the storage tank 3 and ensuring the safety of the methanol filling pump skid device during transportation and use. The rod part of the piston rod 26 is provided with scale lines. Through the scale corresponding to the filter screen at the tail of the gas storage tank 25, the position of the piston can be known, and then the volume of the first chamber 27 can be determined, and further the nitrogen storage capacity in the gas storage tank 25 can be determined;

[0055] Three gas storage tanks 25 are provided to facilitate the storage of more nitrogen. Ball valves four 29 are provided at the connections between the three gas storage tanks 25 and the delivery pipe 20. When a problem occurs in one of the gas storage tanks 25, the front-end ball valve four 29 can be closed, and the gas storage tank 25 can be removed for maintenance or cleaning. The other two gas storage tanks 25 can still work normally without affecting the replenishment and storage of nitrogen.

[0056] After the methanol filling pump skid device has been working for a long time, when the nitrogen temperature in the storage tank 3, the delivery pipe 20, and the first chamber 27 is too high or other gases are mixed in, the outlet pipe 31 is connected to the air extraction pump, and the ball valve five 32 is opened to extract the nitrogen in the storage tank 3. The external atmospheric pressure squeezes the piston rod 26 to move towards the direction of the ball valve four 29, squeezing the nitrogen in the first chamber 27 into the storage tank 3 and then being extracted from the outlet pipe 31. At this time, there is no nitrogen in the gas storage tank 25. Then, the ball valve three 23 is opened, and low-temperature pure nitrogen is replenished into the storage tank 3 from the inlet pipe 22. The air extraction pump continues to work. Since a flow guide plate 19 is provided in the storage tank 3, the low-temperature pure nitrogen travels around the storage tank 3 for one week, facilitating the complete discharge of the previous nitrogen. The air extraction pump and the ball valve five 32 are closed, and nitrogen is continuously replenished into the storage tank 3, and the low-temperature pure nitrogen is replenished into the first chamber 27, facilitating the replenishment of nitrogen from the first chamber 27 into the storage tank 3 after the liquid level in the storage tank 3 drops subsequently. At this time, the nitrogen replacement in the storage tank 3, the delivery pipe 20, and the first chamber 27 is completed, and the replacement is convenient and fast. In addition, the flow guide plate 19 can also increase the strength of the storage tank 3.

[0057] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A methanol filling pump skid device, characterized in that, It includes a base (1) and a protective component. The protective component is fixed on the base (1). Inside the enclosed area of the base (1) and the protective component, there is a storage tank (3). The storage tank (3) is respectively provided with a filling component and a nitrogen storage component.

2. The methanol filling pump skid device according to claim 1, characterized in that, The protective component includes a protective frame (2) and a tail frame (4). The tail frame (4) is inserted on one side of the protective frame (2). The protective frame (2) is fixed on the base (1). One end of the baffle (5) is rotatably connected to the protective frame (2), and the other end of the baffle (5) is fixed to the protective frame (2) by a pin (6).

3. The methanol filling pump skid device according to claim 1, characterized in that, The storage tank (3) is provided with a liquid inlet pipe (7), and a ball valve one (8) is arranged inside the liquid inlet pipe (7).

4. A methanol filling pump skid device according to claim 1, characterized in that, The storage tank (3) is fixedly connected with a liquid level detector (9), and the detection end of the liquid level detector (9) is inserted into the storage tank (3).

5. A methanol filling pump skid device according to claim 1, characterized in that, The storage tank (3) is threadedly connected with a sealing cylinder (11). A sealing ring is arranged between the storage tank (3) and the sealing cylinder (11). The sealing cylinder (11) is internally connected to the storage tank (3). The sealing cylinder (11) is fixedly connected with a pressure gauge (10), and the detection end of the pressure gauge (10) is inserted into the sealing cylinder (11).

6. The methanol filling pump skid device according to claim 1, characterized in that, The filling component includes a liquid outlet pipe (12). One end of the liquid outlet pipe (12) is fixed on the side of the storage tank (3). The other end of the liquid outlet pipe (12) is connected to an explosion-proof pump (13). A connecting pipe (14) is arranged between the explosion-proof pump (13) and a filling gun (15).

7. The methanol filling pump skid device according to claim 6, characterized in that, The filling gun (15) is inserted on a housing (16). The housing (16) is fixed on the outside of the protective frame (2). The explosion-proof pump (13) is fixed on the housing (16). A protective shell (17) is arranged on the outside of the housing (16). A meter (18) is arranged on the housing (16), and the meter (18) is electrically connected to the explosion-proof pump (13).

8. A methanol filling pump skid device according to claim 7, characterized in that, A chamber three (30) is arranged inside the housing (16). The front end of the filling gun (15) is inserted into the chamber three (30). A drain pipe is arranged at the lower end of the housing (16). The drain pipe is communicated with the chamber three (30), and a valve body is arranged inside the drain pipe.

9. The methanol filling pump skid device according to claim 1, characterized in that, The nitrogen storage component includes a delivery pipe (20). One end of the delivery pipe (20) is fixed on the storage tank (3). The other end of the delivery pipe (20) is respectively fixed to three gas storage tanks (25). A ball valve two (21) is arranged inside the delivery pipe (20). The delivery pipe (20) is fixedly connected with an inlet pipe (22). A ball valve three (23) is arranged inside the inlet pipe (22). An outlet pipe (31) is fixed on the storage tank (3). A ball valve five (32) is arranged inside the outlet pipe (31). A flow guide plate (19) is fixedly arranged inside the storage tank (3), and the flow guide plate (19) is located between the delivery pipe (20) and the outlet pipe (31).

10. A methanol filling pump skid device according to claim 9, characterized in that, The base (1) is fixedly connected with a bracket (24). All three gas storage tanks (25) are fixed on the bracket (24). Ball valves four (29) are arranged at the connection parts of the three gas storage tanks (25) and the delivery pipe (20). A piston rod (26) is slidably connected inside the gas storage tank (25), and the piston rod (26) divides the interior of the gas storage tank (25) into a chamber one (27) and a chamber two (28).

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