CN117884789B - Liquid adding and sealing device inside energy accumulator and liquid adding and sealing process thereof - Google Patents
Liquid adding and sealing device inside energy accumulator and liquid adding and sealing process thereof Download PDFInfo
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- CN117884789B CN117884789B CN202311849865.0A CN202311849865A CN117884789B CN 117884789 B CN117884789 B CN 117884789B CN 202311849865 A CN202311849865 A CN 202311849865A CN 117884789 B CN117884789 B CN 117884789B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/00 - B23K28/00 relating to soldering or welding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides an internal liquid adding and sealing device and a liquid adding and sealing process of an energy accumulator, wherein the device comprises an equipment box body, a liquid adding and sealing platform is arranged on the equipment box body, a carrier plate is connected to the liquid adding and sealing platform in a sliding manner, and an oiling device and a sealing device which are arranged side by side along the sliding direction are arranged on the carrier plate; the liquid feeding seal welding platform is provided with a sealing channel which is vertically communicated, an operation chamber is arranged below the liquid feeding seal welding platform, a first connecting device in the operation chamber is positioned under the sealing channel and is abutted against one end of the vertical energy accumulator, a second connecting device is abutted against the other end of the vertical energy accumulator, a vertically communicated butt joint channel is arranged in the first connecting device, an inner oil filling port of the energy accumulator is opposite to the butt joint channel, an inner air suction hole which is connected with the butt joint channel is arranged on the first connecting device, a piston channel which is perpendicular to the butt joint channel is also arranged on the first connecting device, a piston piece used for plugging the butt joint channel is arranged in the piston channel, and a plugging cylinder for operatively connecting the piston piece is arranged in the operation chamber.
Description
Technical Field
The invention relates to the technical field of energy accumulators, in particular to an internal liquid adding and sealing device and a liquid adding and sealing process of an energy accumulator.
Background
An accumulator is a device for storing energy, typically in the hydraulic system of a motor vehicle. The accumulator balances and regulates the system pressure by storing a certain amount of liquid or gas and then releasing energy when needed. The liquid (e.g., pressurized oil) stores energy under pressure, which is released when the system requires to perform a particular operation.
In the use of accumulators, noise is typically caused by turbulence and vibration of the internal fluid. When air exists in the accumulator, bubbles are generated by the oil flowing, and the bubbles burst under the action of pressure to generate noise. In addition, the presence of air causes a change in the hydrodynamic properties, resulting in additional turbulence and vibration of the fluid inside the accumulator, further exacerbating the noise problem.
Air-binding refers to "voids" or "air pockets" within the accumulator created by the accumulation of air that impede the proper flow of fluid. When these air pockets enter other parts of the hydraulic system, they may cause pressure drop or flow instability, affecting the efficiency and response speed of the system.
Cavitation is the rapid decrease in local pressure caused by the mixing of air and liquid in an accumulator under high pressure, causing gas in the liquid to precipitate, forming bubbles. These bubbles burst at high pressure, generating tiny high energy shock waves to the inner wall of the accumulator, and causing corrosion and damage to the inner wall material for a long time.
In summary, the presence of air inside the accumulator is a major cause of noise, air-binding and cavitation. These problems not only affect the performance of the accumulator, but may also shorten its useful life. Therefore, developing a new technical method for effectively exhausting the air inside the accumulator is important to improve the performance and reliability of the accumulator.
Disclosure of Invention
The invention aims to solve the technical problems and provides an internal liquid adding and sealing device of an energy accumulator and a liquid adding and sealing process thereof.
The technical scheme of the invention is that the liquid adding and sealing welding device in the accumulator comprises an equipment box body, wherein a liquid adding and sealing welding platform is arranged on the equipment box body, a carrier plate is connected to the liquid adding and sealing welding platform in a sliding manner, an oiling device and a sealing welding device which are arranged side by side along the sliding direction are arranged on the carrier plate, and a motor for driving the carrier plate to slide is arranged on the liquid adding and sealing welding platform;
The liquid adding and sealing welding device comprises a liquid adding and sealing welding platform, and is characterized in that an up-and-down through sealing channel is arranged on the liquid adding and sealing welding platform, an operation chamber is arranged below the liquid adding and sealing welding platform, a first connecting device and a second connecting device are arranged in the operation chamber, the first connecting device is positioned right below the sealing channel and props against one end of a vertical energy accumulator, the second connecting device props against the other end of the vertical energy accumulator, a butt joint channel which is vertically through and is connected with the sealing channel is arranged in the first connecting device, an inner oil filling port of the energy accumulator is right opposite to the butt joint channel, an inner air pumping hole which is connected with the butt joint channel is arranged on the first connecting device, a piston channel which is perpendicular to the butt joint channel is also arranged on the first connecting device, a piston piece for sealing the butt joint channel is arranged in the piston channel, and a plugging cylinder which is operatively connected with the piston piece is arranged in the operation chamber;
the oiling device comprises a first sealing joint capable of lifting, an inner oiling needle tube capable of stretching is arranged at the end part of the first sealing joint, the inner oiling needle tube is connected with a low-temperature oil tank, the sealing welding device comprises a sealing welding electrode capable of lifting, a second sealing joint is arranged at the end part close to the sealing welding electrode, a vacuum box is arranged below a liquid adding sealing welding platform, an operation chamber is formed in the vacuum box, one side of the vacuum box is provided with a first air tube and a second air tube which are respectively connected with an inner air suction hole and the inside of the vacuum box, the first air tube and the second air tube are connected with air suction equipment, and a low-temperature cavity surrounding the outer side of the energy accumulator is arranged in the operation chamber.
As one embodiment, the bottom of the low-temperature oil tank is provided with an overhead foot.
As one implementation mode, the top of the low-temperature oil tank is provided with a pressure gauge and a thermometer.
As an implementation mode, the top of the low-temperature oil tank is detachably connected with a mounting plate, and the pressure gauge and the thermometer are integrated on the mounting plate.
As an implementation mode, hanging rings are arranged at four corners of the top of the low-temperature oil tank.
As one implementation mode, the vacuum box is a side-by-side type box body, and a handle is arranged on a box door of the vacuum box.
As one embodiment, the oiling device further comprises an internal oiling cylinder operatively connected to the first sealing head.
As one embodiment, the seal welding device further comprises a hydraulic cylinder operatively connected to the seal welding electrode.
As an embodiment, the position of the inner pumping hole is higher than the position of the piston member.
The invention also provides an internal liquid adding and sealing process for an accumulator, which is characterized by comprising the following steps of
And (3) cooling: the temperature of the side wall of the accumulator is lower than the temperature of the pressure oil to be injected by cooling the pressure oil to be injected in the low-temperature oil tank and the side wall of the accumulator through the low-temperature oil tank and the low-temperature cavity respectively;
And (3) vacuumizing: the first sealing joint enters the sealing joint channel to prevent external air from entering the butt joint channel from the sealing joint channel, the inner oil filling needle tube is contracted to communicate the inner oil filling port with the inner air extraction hole, and the air extraction equipment is used for respectively vacuumizing the interior of the energy accumulator and the interior of the vacuum box until the internal pressures of the energy accumulator and the vacuum box respectively reach preset negative pressure values;
oiling: the inner oil injection needle tube stretches out through the inner oil injection port to inject pressure oil lower than normal temperature into the accumulator until oil injection is completed, so that the inner oil injection needle tube is contracted;
Sealing and welding: the piston piece is used for blocking the butt joint channel to prevent external air from entering the butt joint channel from the tight joint channel, the second tight joint is made to enter the tight joint channel after the first tight joint is moved out, and then the piston piece is moved out to enable the seal welding electrode to be placed at the inner oil filling port for seal welding.
Compared with the prior art, the device has the beneficial effects that the whole process of the device for adding liquid and sealing the inside of the energy accumulator is controlled, and the whole process from vacuumizing to oiling to sealing is strictly controlled, so that no air exists in the inside of the energy accumulator. The problem of the internal air of the traditional energy accumulator in the welding and oiling processes is solved through the improved production process, so that the noise in the operation process is reduced, the phenomena of air binding and cavitation are prevented, and the overall performance and reliability of the energy accumulator are improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an accumulator internal liquid adding seal welding device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an oiling device and a seal welding device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first part of an internal liquid adding and sealing device of an accumulator according to an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a second part of an internal liquid adding and sealing device of an accumulator according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third part of an internal liquid adding and sealing device for an accumulator according to an embodiment of the present invention.
In the figure: 1. an equipment box; 2. a liquid adding and welding platform; 3. a carrier plate; 4. an oiling device; 5. a seal welding device; 6. a motor; 7. closely connecting the channels; 8. an operation chamber; 9. a first connecting device; 10. a second connecting device; 11. an accumulator; 12. a docking channel; 13. an inner oil filling port; 14. an inner pumping hole; 15. a piston passage; 16. a piston member; 17. plugging the air cylinder; 18. a first sealing joint; 19. an inner oiling needle tube; 20. a low temperature oil tank; 21. sealing and welding electrodes; 22. a second sealing joint; 23. a vacuum box; 24. a first air tube; 25. a second air pipe; 26. an air extraction device; 27. a low temperature chamber; 28. overhead feet; 29. a pressure gauge; 30. a thermometer; 31. a mounting plate; 32. a hanging ring; 33. a door; 34. a handle; 35. an internal oiling cylinder; 36. and a hydraulic cylinder.
Detailed Description
The foregoing and other embodiments and advantages of the invention will be apparent from the following, more complete, description of the invention, taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention.
In one embodiment, as shown in fig. 1-5.
The device for filling and sealing the interior of the accumulator comprises a device box body 1, wherein a liquid filling and sealing platform 2 is arranged on the device box body 1, a carrier plate 3 is connected to the liquid filling and sealing platform 2 in a sliding manner, an oiling device 4 and a sealing device 5 which are arranged side by side along the sliding direction are arranged on the carrier plate 3, and a motor 6 for driving the carrier plate 3 to slide is arranged on the liquid filling and sealing platform 2; the liquid adding and sealing platform 2 is provided with a sealing channel 7 which is vertically penetrated, an operation chamber 8 is arranged below the liquid adding and sealing platform 2, a first connecting device 9 and a second connecting device 10 are arranged in the operation chamber 8, the first connecting device 9 is positioned right below the sealing channel 7 and is abutted against one end of the vertical energy accumulator 11, the second connecting device 10 is abutted against the other end of the vertical energy accumulator 11, a butt joint channel 12 which is vertically penetrated and is connected with the sealing channel 7 is arranged in the first connecting device 9, an inner oil filling port 13 of the energy accumulator 11 is opposite to the butt joint channel 12, an inner air pumping hole 14 which is connected with the butt joint channel 12 is arranged on the first connecting device 9, a piston channel 15 which is perpendicular to the butt joint channel 12 is also arranged on the first connecting device 9, a piston piece 16 which is used for sealing the butt joint channel 12 is arranged in the piston channel 15, and a sealing cylinder 17 which is operatively connected with the piston piece 16 is arranged in the operation chamber 8; the oiling device 4 comprises a first sealing joint 18 capable of lifting, an inner oiling needle tube 19 capable of stretching is arranged at the end part of the first sealing joint 18, the inner oiling needle tube 19 is connected with a low-temperature oil tank 20, the sealing welding device 5 comprises a sealing welding electrode 21 capable of lifting, a second sealing joint 22 is arranged at the end part close to the sealing welding electrode 21, a vacuum box 23 is arranged below the liquid feeding sealing welding platform 2, an operation chamber 8 is formed in the vacuum box 23, a first air tube 24 and a second air tube 25 which are respectively connected with an inner air suction hole 14 and the inside of the vacuum box 23 are arranged on one side of the vacuum box 23, an air suction device 26 is connected with the first air tube 24 and the second air tube 25, and a low-temperature cavity 27 surrounding the outside of the energy accumulator 11 is arranged in the operation chamber 8.
In the embodiment, the device for adding and sealing the liquid in the accumulator controls the whole process from vacuumizing to oiling and then sealing, and the whole process is strictly controlled to ensure that no air exists in the accumulator. The problem of the internal air of the traditional energy accumulator in the welding and oiling processes is solved through the improved production process, so that the noise in the operation process is reduced, the phenomena of air binding and cavitation are prevented, and the overall performance and reliability of the energy accumulator are improved.
In the present embodiment, the motor 6 drives the oiling device 4 and the seal welding device 5 to slide, and oiling can be performed when the oiling device 4 faces the accumulator 11. When the sealing device 5 is facing the accumulator 11, sealing can be performed. The liquid feeding sealing welding platform 2 is provided with a sealing channel 7, and the first sealing joint 18 or the second sealing joint 22 enters the sealing channel 7, so that a sealed space is formed inside the sealing channel 7. Unlike the conventional production process, in the present embodiment, the temperature of the pressure oil injected into the accumulator 11 is lower than normal temperature, and there is no tendency of temperature rise after a small amount of pressure oil is injected into the accumulator 11, and there is an inverse tendency of temperature drop because there is a low temperature chamber 27 surrounding the outside of the accumulator 11 in the operation chamber 8.
In the present embodiment, the energy accumulator 11 is fixed by the first connecting device 9 and the second connecting device 10, wherein the second connecting device 10 can be moved downwards, and the energy accumulator 11 is abutted against the lower end of the energy accumulator 11 after being placed, and the first connecting device 9 is abutted against the upper end of the energy accumulator 11. After the accumulator 11 is fixed, as shown in fig. 2, the inner oil filling port 13 faces the docking channel 12, and the docking channel 12 is connected with the sealing channel 7. During vacuumizing, external air is prevented from entering the butt joint channel 12 from the butt joint channel 7 by enabling the first sealing joint 18 to enter the butt joint channel 7, the inner oil filling needle tube 19 is contracted to communicate the inner oil filling opening 13 with the inner air pumping hole 14, and the interior of the energy accumulator 11 and the interior of the vacuum box 23 are vacuumized through the air pumping equipment 26 respectively, because the first air tube 24 and the second air tube 25 are connected with the interior of the inner air pumping hole 14 and the interior of the vacuum box 23 respectively. The interior of the accumulator 11 is pumped to a negative pressure using a pumping device 26 to ensure that the interior is free of air. Any unsealed micro-cracks are exposed under vacuum because the pressure of the air or the external environment will attempt to fill these spaces. And simultaneously, in order to ensure that the plugging cylinder 17 stably executes telescopic action, a vacuum working environment is formed inside the vacuum box 23.
In this way, the needle tube 19 for internal oiling extends through the internal oiling port 13 to inject pressure oil lower than normal temperature into the accumulator 11 until the oiling is completed, and finally the needle tube 19 for internal oiling is contracted, and the injection of pressure oil under the negative pressure state can ensure that the oil fills the accumulator 11 in an airless environment, thereby avoiding the generation of bubbles. Why is the pressure oil below the normal temperature injected and keeps the injected pressure oil with a trend of further temperature decrease? Since the boiling point of the pressure oil will be lower than normal temperature in the low pressure state, if the pressure oil at normal temperature is injected, bubbles will be generated due to the boiling of the pressure oil, and if the pressure oil at low temperature is injected only, the pressure oil injected into the accumulator 11 has a tendency to rise in temperature up to its boiling point due to the slow injection process. Therefore, in order to prevent the pressure oil itself from generating bubbles, the low-temperature tank 20 and the low-temperature chamber 27 are indispensable. With the oil filling completed, the first sealing joint 18 still does not leave the sealing joint channel 7, but waits for the blocking cylinder 17 to enable the piston member 16 to block the butt joint channel 12 to prevent external air from entering the butt joint channel 12 from the sealing joint channel 7, after the first sealing joint 18 is removed, the second sealing joint 22 enters the sealing joint channel 7, air brought in the process of switching from the first sealing joint 18 to the second sealing joint 22 is pumped out through the inner pumping hole 14, so that the sealing joint channel 7 and the butt joint channel 12 still maintain a negative pressure state, then the piston member 16 is removed again to enable the sealing welding electrode 21 to be placed at the inner oil filling port 13 for sealing welding, then the sealing welding process is completed under the negative pressure state, no air enters in the whole process, and no gas is generated.
In one embodiment, as shown in FIG. 1.
In the accumulator internal liquid adding and sealing device provided in the embodiment, an overhead foot 28 is arranged at the bottom of the low-temperature oil tank 20.
In the present embodiment, the bottom of the low-temperature tank 20 is raised by the overhead foot 28, and is prevented from being in direct contact with other components.
In one embodiment, as shown in FIG. 1.
In the accumulator internal liquid adding and sealing device provided in the embodiment, the top of the low-temperature oil tank 20 is provided with a pressure gauge 29 and a thermometer 30.
In the present embodiment, the pressure gauge 29 and the thermometer 30 are provided, so that the pressure oil in the low-temperature oil tank 20 can be detected.
In one embodiment, as shown in FIG. 1.
In the accumulator internal liquid adding seal welding device provided in this embodiment, the top of the low-temperature oil tank 20 is detachably connected with the mounting plate 31, and the pressure gauge 29 and the thermometer 30 are integrated on the mounting plate 31. The four corners of the top of the low-temperature oil tank 20 are provided with hanging rings 32.
In this embodiment, the detachable connection is realized by providing the mounting plate 31, which is a common arrangement. In addition, hanging rings 32 are provided at four corners of the top of the low-temperature tank 20.
In one embodiment, as shown in FIG. 1.
In the accumulator internal liquid adding and sealing device provided by the embodiment, the vacuum box 23 is a split door type box body, and the handle 34 is arranged on the box door 33 of the vacuum box 23.
In the present embodiment, a vacuum box 23 of a side-by-side type box is used.
In one embodiment, as shown in fig. 1 and 5.
The device for filling and sealing the accumulator provided in this embodiment, the oiling device 4 further includes an internal oiling cylinder 35, and the internal oiling cylinder 35 is operatively connected to the first sealing joint 18. The seal welding device 5 further comprises a hydraulic cylinder 36, and the hydraulic cylinder 36 is operatively connected with the seal welding electrode 21.
In the present embodiment, the internal oiling cylinder 35 and the hydraulic cylinder 36 are both driving members for driving the first sealing joint 18 and the seal electrode 21, respectively.
In one embodiment, the internal pumping port 14 of the accumulator internal charging seal arrangement is located higher than the piston member 16.
In the present embodiment, since the position of the inner air suction hole 14 is higher than the position of the piston member 16, when the first sealing joint 18 and the second sealing joint 22 are switched, air carried in during the switching process can be sucked through the inner air suction hole 14, so that the inside of the sealing joint channel 7 and the butt joint channel 12 still maintain the negative pressure state.
In one embodiment, an accumulator internal liquid adding and sealing process is based on the accumulator internal liquid adding and sealing device, and the process comprises the steps of cooling: the temperature of the side wall of the accumulator is lower than the temperature of the pressure oil to be injected by cooling the pressure oil to be injected in the low-temperature oil tank and the side wall of the accumulator through the low-temperature oil tank and the low-temperature cavity respectively; and (3) vacuumizing: the first sealing joint enters the sealing joint channel to prevent external air from entering the butt joint channel from the sealing joint channel, the inner oil filling needle tube is contracted to communicate the inner oil filling port with the inner air extraction hole, and the air extraction equipment is used for respectively vacuumizing the interior of the energy accumulator and the interior of the vacuum box until the internal pressures of the energy accumulator and the vacuum box respectively reach preset negative pressure values; oiling: the inner oil injection needle tube stretches out through the inner oil injection port to inject pressure oil lower than normal temperature into the accumulator until oil injection is completed, so that the inner oil injection needle tube is contracted; sealing and welding: the piston piece is used for blocking the butt joint channel to prevent external air from entering the butt joint channel from the tight joint channel, the second tight joint is made to enter the tight joint channel after the first tight joint is moved out, and then the piston piece is moved out to enable the seal welding electrode to be placed at the inner oil filling port for seal welding.
In the embodiment, the whole process from vacuumizing to oiling to sealing welding is controlled, so that no air exists in the accumulator. The problem of the internal air of the traditional energy accumulator in the welding and oiling processes is solved through the improved production process, so that the noise in the operation process is reduced, the phenomena of air binding and cavitation are prevented, and the overall performance and reliability of the energy accumulator are improved.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the foregoing is only illustrative of the present invention and is not intended to limit the scope of the present invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides an inside liquid feeding seal welding device of energy storage ware, its characterized in that, including equipment box (1), be equipped with liquid feeding seal welding platform (2) on equipment box (1), sliding connection has carrier plate (3) on liquid feeding seal welding platform (2), be equipped with oiling device (4) and seal welding device (5) side by side along the slip direction on carrier plate (3), be equipped with on liquid feeding seal welding platform (2) and be used for driving motor (6) that carrier plate (3) slided;
The sealing device is characterized in that a sealing joint channel (7) which is vertically penetrated is arranged on the liquid feeding sealing welding platform (2), an operation chamber (8) is arranged below the liquid feeding sealing welding platform (2), a first connecting device (9) and a second connecting device (10) are arranged in the operation chamber (8), the first connecting device (9) is positioned right below the sealing joint channel (7) and abuts against one end of an energy accumulator (11) which is vertically arranged, the second connecting device (10) abuts against the other end of the energy accumulator (11), a butt joint channel (12) which is vertically penetrated and connected with the sealing joint channel (7) is arranged in the first connecting device (9), an inner oil filling port (13) of the energy accumulator (11) is right opposite to the butt joint channel (12), an inner air suction hole (14) which is connected with the butt joint channel (12) is formed in the first connecting device (9), a piston channel (15) which is perpendicular to the butt joint channel (12) is formed in the first connecting device (9), and a piston (16) which is used for sealing the operation chamber (16) is arranged in the piston (8);
the oiling device (4) comprises a first sealing joint (18) capable of lifting, an inner oiling needle tube (19) capable of stretching is arranged at the end part of the first sealing joint (18), the inner oiling needle tube (19) is connected with a low-temperature oil tank (20), the sealing welding device (5) comprises a sealing welding electrode (21) capable of lifting, a second sealing joint (22) is arranged at the end part close to the sealing welding electrode (21), a vacuum box (23) is arranged below a liquid feeding sealing welding platform (2), an operation chamber (8) is formed in the vacuum box (23), one side of the vacuum box (23) is provided with a first air pipe (24) and a second air pipe (25) which are respectively connected with the inner air suction hole (14) and the vacuum box (23), the first air pipe (24) and the second air pipe (25) are connected with an air suction device (26), and a low-temperature cavity (27) surrounding the outer side of the energy accumulator (11) is arranged in the operation chamber (8).
2. The accumulator internal charging seal welding device according to claim 1, characterized in that the bottom of the low temperature oil tank (20) is provided with an overhead foot (28).
3. The accumulator internal liquid charging seal welding device according to claim 1, characterized in that the top of the low temperature oil tank (20) is provided with a pressure gauge (29) and a thermometer (30).
4. An accumulator internal charging seal welding device according to claim 3, characterized in that the top of the low temperature oil tank (20) is detachably connected with a mounting plate (31), and the pressure gauge (29) and the thermometer (30) are integrated on the mounting plate (31).
5. The accumulator internal liquid adding and sealing device according to claim 1, wherein hanging rings (32) are arranged at four corners of the top of the low-temperature oil tank (20).
6. The accumulator internal liquid adding and sealing device according to claim 1, wherein the vacuum box (23) is a split door type box body, and a handle (34) is arranged on a box door (33) of the vacuum box (23).
7. The accumulator internal charging seal welding device according to claim 1, characterized in that the oiling device (4) further comprises an internal oiling cylinder (35), said internal oiling cylinder (35) being operatively connected to the first sealing head (18).
8. The accumulator internal charging seal arrangement according to claim 1, wherein the seal arrangement (5) further comprises a hydraulic cylinder (36), the hydraulic cylinder (36) being operatively connected to the seal electrode (21).
9. The accumulator internal charging seal arrangement as claimed in claim 1, wherein the internal bleed hole (14) is located higher than the piston member (16).
10. An accumulator internal liquid charging seal welding process, characterized by comprising the following steps based on the accumulator internal liquid charging seal welding device as set forth in any one of claims 1 to 9
And (3) cooling: the temperature of the side wall of the accumulator is lower than the temperature of the pressure oil to be injected by cooling the pressure oil to be injected in the low-temperature oil tank and the side wall of the accumulator through the low-temperature oil tank and the low-temperature cavity respectively;
And (3) vacuumizing: the first sealing joint enters the sealing joint channel to prevent external air from entering the butt joint channel from the sealing joint channel, the inner oil filling needle tube is contracted to communicate the inner oil filling port with the inner air extraction hole, and the air extraction equipment is used for respectively vacuumizing the interior of the energy accumulator and the interior of the vacuum box until the internal pressures of the energy accumulator and the vacuum box respectively reach preset negative pressure values;
oiling: the inner oil injection needle tube stretches out through the inner oil injection port to inject pressure oil lower than normal temperature into the accumulator until oil injection is completed, so that the inner oil injection needle tube is contracted;
Sealing and welding: the piston piece is used for blocking the butt joint channel to prevent external air from entering the butt joint channel from the tight joint channel, the second tight joint is made to enter the tight joint channel after the first tight joint is moved out, and then the piston piece is moved out to enable the seal welding electrode to be placed at the inner oil filling port for seal welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311849865.0A CN117884789B (en) | 2023-12-28 | 2023-12-28 | Liquid adding and sealing device inside energy accumulator and liquid adding and sealing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311849865.0A CN117884789B (en) | 2023-12-28 | 2023-12-28 | Liquid adding and sealing device inside energy accumulator and liquid adding and sealing process thereof |
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| CN117884789A CN117884789A (en) | 2024-04-16 |
| CN117884789B true CN117884789B (en) | 2024-07-23 |
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| CN216487610U (en) * | 2021-12-09 | 2022-05-10 | 孙铭阳 | Leakage visible air bag vertical metal corrugated oil conservator |
| CN114446602A (en) * | 2022-01-20 | 2022-05-06 | 山东电力设备有限公司 | Method and device for vacuum oil injection of valve sleeve transport cylinder of extra-high voltage converter transformer |
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| CN105422519A (en) * | 2015-12-21 | 2016-03-23 | 北京机械设备研究所 | Integrated small embedded hydraulic oil source |
| CN110259766A (en) * | 2019-06-24 | 2019-09-20 | 北京博键传动技术有限公司 | A kind of integrated form high-pressure injection and vaccum-pumping equipment |
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| CN117884789A (en) | 2024-04-16 |
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