A pressure stabilizing oil passage with multiple outputs

Abstract

The utility model discloses a kind of multi-output voltage stabilizing oil path, including oil inlet component, voltage stabilizing module, outlet control valve, oil inlet component includes oil pump, and oil pump is connected with crude oil tank, voltage stabilizing module includes oil path pipeline, oil path pipeline has oil inlet and multiple oil outlets, and between oil inlet and oil outlet is provided with supply pressure component, voltage stabilizing component and electro-hydraulic reversing valve, supply pressure component, voltage stabilizing component and electro-hydraulic reversing valve are connected with the oil return port of crude oil tank, oil inlet is connected with oil pump, and oil outlet includes the first oil outlet for being connected with the client oil path and at least one second oil outlet;First oil outlet is connected with the liquid outlet end of electro-hydraulic reversing valve, and the first oil inlet of outlet control valve is connected with the liquid inlet end of electro-hydraulic reversing valve, and the oil return port of outlet control valve is connected with the oil return port of crude oil tank;The oil outlet end of outlet control valve is connected with second oil outlet.The utility model provides voltage stabilizing oil path with multi-output, and can ensure oil path working condition stability.

Description

Technical Field

[0001] This utility model relates to the field of oil supply and pressure stabilization technology, and in particular to a pressure stabilizing oil circuit with multiple outputs. Background Technology

[0002] Currently, in the hydraulic systems of gas stations, oil is typically pumped directly from the tank to the customer's equipment's hydraulic system via an oil pump, allowing for high-pressure output of the stored oil. However, due to the excessive oil consumption in the customer's equipment's hydraulic system, it's impossible to monitor the gas station's operating conditions and adjust the corresponding hydraulic components in real time. Over extended periods, this can lead to unstable oil pressure in the hydraulic system, posing a high risk and impacting the performance of the customer's equipment. Furthermore, the current oil pumps can only supply oil to a single outlet; adding more outlets would also affect the oil pressure stability of the hydraulic system. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pressure-stabilizing oil circuit with multiple outputs. This pressure-stabilizing oil circuit has multiple outputs and can ensure the stability of the oil circuit operation, reduce the risks caused by unstable oil pressure in the oil circuit system, and ensure that the working performance of customer equipment is not affected.

[0004] This utility model is achieved through the following technical solution:

[0005] A voltage-stabilizing oil circuit with multiple outputs includes:

[0006] An oil inlet assembly, the oil inlet assembly including an oil pump, the oil pump being connected to an oil tank;

[0007] A pressure stabilizing module includes an oil pipeline and an outlet control valve. The oil pipeline has an inlet and multiple outlets. A pressure supply component, a pressure stabilizing component, and an electro-hydraulic directional valve are provided between the inlet and outlets. The pressure supply component, the pressure stabilizing component, and the electro-hydraulic directional valve are all connected to the return port of the crude oil tank. The inlet is connected to the oil pump. The outlets include a first outlet for connecting to the client oil pipeline and at least one second outlet. The first outlet is connected to the outlet end of the electro-hydraulic directional valve.

[0008] The first oil inlet of the outlet control valve is connected to the inlet end of the electro-hydraulic directional valve, the first oil return port of the outlet control valve is connected to the oil return port of the crude oil tank, and the oil outlet end of the outlet control valve is connected to the second oil outlet.

[0009] The control unit is electrically connected to both the electro-hydraulic directional valve and the outlet control valve.

[0010] Furthermore, the outlet control valve is a three-position four-way solenoid valve.

[0011] Furthermore, the pressure stabilizing module also includes a fourth oil return branch, one end of which is connected to the electro-hydraulic directional valve and the other end is connected to the oil return port of the crude oil tank.

[0012] Furthermore, it also includes a safety component, which includes a third return oil branch and a solenoid valve and a second relief valve connected in parallel on the third return oil branch. One end of the third return oil branch is connected to the oil pipeline, and the other end is connected to the return oil port of the crude oil tank.

[0013] Furthermore, the pressure supply assembly includes a pressure supply pipeline, a first shut-off valve disposed on the pressure supply pipeline, and a pressure relief assembly. One end of the pressure supply pipeline is connected to the oil pipeline, and the other end is configured as an expansion port 332 for connecting an accumulator. One end of the pressure relief assembly is connected between the first shut-off valve and the expansion port, and the other end is connected to the return port of the crude oil tank.

[0014] Furthermore, the pressure relief assembly includes a first return oil branch, a first throttle valve, and a first relief valve. One end of the first return oil branch is connected to the pressure supply pipeline, and the other end is connected to the return oil port of the crude oil tank. The first throttle valve and the first relief valve are connected in parallel on the first return oil branch.

[0015] Furthermore, the pressure stabilizing assembly is provided in at least two sets, and the at least two sets of the pressure stabilizing assembly are connected in parallel on the oil pipeline. The pressure stabilizing assembly includes a second return oil branch and a second throttle valve, a third throttle valve and a pressure reducing valve provided on the oil pipeline. The pressure reducing valve is provided between the second throttle valve and the third throttle valve. One end of the second return oil branch is connected to the pressure reducing valve and the other end is connected to the return oil port of the crude oil tank.

[0016] Furthermore, a first check valve is provided between the safety component and the pressure supply component, and a second check valve is provided between the second pressure sensor and the electro-hydraulic directional valve.

[0017] Furthermore, a second check valve is provided between the second pressure sensor and the electro-hydraulic directional valve.

[0018] Furthermore, it also includes

[0019] The first pressure gauge is disposed between the first check valve and the pressure supply assembly;

[0020] A second pressure gauge is disposed between the pressure stabilizing component and the second pressure sensor.

[0021] The third pressure gauge is disposed between the second check valve and the electro-hydraulic directional valve.

[0022] Furthermore, it also includes:

[0023] A first pressure sensor is disposed between the first check valve and the pressure supply assembly, and is electrically connected to the control unit;

[0024] The second pressure sensor is disposed between the pressure stabilizing assembly and the electro-hydraulic directional valve, and is electrically connected to the control unit.

[0025] Compared with existing technologies, the advantages of this utility model are:

[0026] 1. By setting up pressure supply components, pressure stabilizing components, electro-hydraulic directional valves and outlet control valves, multiple oil outputs can be achieved, while ensuring the stability of oil circuit operation, reducing the risks caused by unstable oil pressure in the oil circuit system, and ensuring that the working performance of customer equipment is not affected.

[0027] 2. By placing the second pressure gauge between the pressure stabilizing component and the second check valve, the output pressure of the pressure reducing valve can be visually observed, facilitating timely adjustment of the pressure reducing valve.

[0028] 3. By placing the second pressure sensor between the pressure stabilizing component and the second check valve, the pressure after the pressure reducing valve is output is detected. The pressure data is collected by the control unit to monitor and determine whether the system output is normal. Furthermore, the control unit can adjust the pressure reducing valve based on the collected pressure data. Direct data comparison improves debugging efficiency and increases the accuracy of the debugging pressure.

[0029] 4. The electro-hydraulic directional valve is connected to the oil outlet of the crude oil tank through the fourth return oil circuit for oil return. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating the working principle of a multi-output stabilizing oil circuit according to an embodiment of the present invention.

[0031] 1. Crude oil tank; 11. Return oil port; 2. Oil inlet assembly; 21. Motor; 22. Oil pump; 3. Pressure stabilizing module; 31. Oil pipeline; 311. Oil inlet; 312. First oil outlet; 313. Second oil outlet; 32. Filter; 33. Pressure supply assembly; 331. Pressure supply pipeline; 332. Expansion port; 333. First shut-off valve; 334. Pressure relief assembly; 335. First return oil branch; 336. First throttle valve; 337. First overflow valve; 34. Pressure stabilizing assembly; 341. Second return oil branch; 342. ... 343. Second throttle valve; 345. Third throttle valve; 35. Pressure reducing valve; 36. Safety component; 37. Third return oil branch; 38. Solenoid valve; 39. Second relief valve; 30. First check valve; 31. Second check valve; 32. Electro-hydraulic directional valve; 33. Fourth return oil branch; 34. Outlet control valve; 35. First inlet; 36. First return oil port; 37. First return oil port; 4. Accumulator; 58. First pressure sensor; 59. Second pressure sensor; 60. First pressure gauge; 61. Second pressure gauge; 62. Third pressure gauge. Detailed Implementation

[0032] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] like Figure 1As shown, an embodiment of the present invention provides a multi-output pressure-stabilizing oil circuit, including an oil inlet assembly 2, a pressure-stabilizing module 3, a second pressure sensor 52, a second pressure gauge 62, and a control unit. The oil inlet assembly 2 includes a motor 21 and an oil pump 22 connected to each other, with the oil pump 22 connected to an oil tank 1. The pressure-stabilizing module 3 includes an oil pipeline 31, which has an inlet 311 and multiple outlets. The inlet 311 is connected to the oil pump 22, and the outlets include a first outlet 312 connected to a client oil circuit and at least one second outlet 313. The first outlet 312 is connected to the client oil circuit. A filter 32, a safety component 35, a pressure supply component 33, a pressure-stabilizing component 34, and an electro-hydraulic directional valve 38 are disposed between the inlet 311 and the outlets. The safety component 35, the pressure supply component 33, the pressure-stabilizing component 34, and the electro-hydraulic directional valve 38 are all connected to the return port 11 of the oil tank 1. The second pressure sensor 52 is positioned between the pressure stabilizing assembly 34 and the electro-hydraulic directional valve 38. The second pressure gauge 62 is positioned between the pressure stabilizing assembly 34 and the second pressure sensor 52. The control unit is electrically connected to the motor 21, the second pressure sensor 52, and the electro-hydraulic directional valve 38. By combining the safety assembly 35, the pressure supply assembly 33, and the pressure stabilizing assembly 34 within the oil circuit pipeline 31, the stability of the oil circuit operating conditions is ensured, reducing the risks associated with unstable oil pressure in the oil circuit system and ensuring that the performance of the customer's equipment is not affected.

[0034] In addition, the pressure stabilizing oil circuit also includes an outlet control valve 39 electrically connected to the control unit. The first oil inlet 391 of the outlet control valve 39 is connected to the inlet end of the electro-hydraulic directional valve 38, and the first oil return port 392 of the outlet control valve 39 is connected to the oil return port 11 of the crude oil tank 1. The oil outlet end of the outlet control valve 39 is connected to the second oil outlet 313.

[0035] In this embodiment, the outlet control valve 39 is a three-position four-way solenoid valve, and its outlet end is connected to the second outlet port 313, which is connected to the rod-side chamber and rodless chamber of the actuator, respectively. Precise control of the outlet control valve 39 ensures the flexibility and accuracy of the actuator's movements.

[0036] An electro-hydraulic directional valve 38 is located at the first oil outlet 312 and is used to control the opening or closing of the first oil outlet 312.

[0037] In this embodiment, the control unit is preferably a PLC.

[0038] In this embodiment, the filter 32 is located near the oil inlet 311 of the oil pipeline 31 to filter the oil entering the oil pipeline 31 and ensure that the oil is clean.

[0039] Further reference Figure 1The safety component 35 includes a third return oil branch 351 and a solenoid valve 352 and a second relief valve 353 connected in parallel to the third return oil branch 351. One end of the third return oil branch 351 is connected to the oil pipeline 31, and the other end is connected to the return oil port 11 of the crude oil tank 1. In this embodiment, the control unit is electrically connected to the solenoid valve 352 and controls the solenoid valve 352 to regulate the pressure in the oil pipeline 31. In this embodiment, the solenoid valve 352 is a 2-position 2-way solenoid valve, which is energized and depressurized before and after the oil pump 20 starts, which can effectively reduce the starting load of the motor 21. The second relief valve 353 is a safety relief valve, and by adjusting this parameter, the maximum safe pressure of the oil pipeline 31 can be effectively controlled.

[0040] The pressure supply assembly 33 includes a pressure supply pipeline 331, a first shut-off valve 333 installed on the pressure supply pipeline 331, and a pressure relief assembly 334. One end of the pressure supply pipeline 331 is connected to the oil pipeline 31, and the other end is configured as an expansion port 332 for connecting to the accumulator 4. The accumulator 4 mainly functions as an oil supply unit. One end of the pressure relief assembly 334 is connected between the first shut-off valve 333 and the expansion port 332, and the other end is connected to the return port 11 of the crude oil tank 1. In this embodiment, the pressure supply assembly 33 is specifically configured as two sets, and each set is provided with an expansion port 332. During operation, one expansion port 332 is connected to the accumulator 4, and the other expansion port 332 serves as a backup, which can be selected by the customer for expansion. When the customer selects to connect the accumulator 4, the larger the capacity of the accumulator 4, the more pressure oil is output. Furthermore, when the main accumulator 4 fails and needs maintenance or testing, the normal operation of the system can be maintained by the backup accumulator 4 and the pressure supply assembly 33.

[0041] Furthermore, the pressure relief assembly 334 includes a first return oil branch 335, a first throttle valve 336, and a first relief valve 337. One end of the first return oil branch 335 is connected to the pressure supply line 331, and the other end is connected to the return oil port 11 of the crude oil tank 1. The first throttle valve 336 and the first relief valve 337 are connected in parallel on the first return oil branch 335. The first shut-off valve 333 is used to block the pressure supply line 331 when the accumulator 4 is being maintained. After the first shut-off valve 333 blocks the pressure supply line 331, there is still a certain amount of high-pressure oil in the accumulator 4. The remaining high-pressure oil can be depressurized through the first throttle valve 336 to ensure installation safety. The first relief valve 337 is a safety relief valve for the accumulator 4 and can limit the maximum pressure of the accumulator 4.

[0042] A first check valve 36 is provided between the safety component 35 and the pressure supply component 33.

[0043] At least two sets of pressure stabilizing components 34 are provided, and at least two sets of pressure stabilizing components 34 are connected in parallel on the oil pipeline 31. In this embodiment, two sets of pressure stabilizing components 34 are provided, and the two sets of pressure stabilizing components 34 are connected in parallel on the oil pipeline 31. The pressure stabilizing component 34 includes a second return oil branch 341 and a second throttle valve 342, a third throttle valve 343 and a pressure reducing valve 345 provided on the oil pipeline 31. The pressure reducing valve 345 is provided between the second throttle valve 342 and the third throttle valve 343. One end of the second return oil branch 341 is connected to the pressure reducing valve 345 and the other end is connected to the return oil port 11 of the crude oil tank 1. The two sets of pressure stabilizing components 34 can be used interchangeably, with one serving as the primary and the other as a backup. When the primary pressure reducing valve 345 malfunctions and requires maintenance, the second throttle valve 342 and the third throttle valve 343 on both sides of the primary pressure reducing valve 345 are closed, thus blocking the pressure reducing valve 345. The oil between the second throttle valve 342 and the third throttle valve 343 returns to the crude oil tank 1 through the second return oil branch 341, avoiding oil waste. Then, the second throttle valve 342 and the third throttle valve 343 of the backup pressure stabilizing component 34 are opened, and the backup pressure reducing valve 345 is used. The two sets of pressure stabilizing components 34 can also be used simultaneously, activating the backup pressure stabilizing component 34 to increase the system oil flow output. In this embodiment, high-pressure oil is stored in the accumulator 4, and the pressure is reduced to a preset value by the pressure reducing valve 345, enabling a continuous and stable output of hydraulic oil.

[0044] A second check valve 37 is provided between the pressure stabilizing component 34 and the electro-hydraulic directional valve 38. The second check valve 37 can prevent oil in the external oil circuit connected to the oil outlet from flowing back into the pressure stabilizing module 3.

[0045] The pressure stabilizing module 3 also includes a fourth oil return branch 381, one end of which is connected to the electro-hydraulic directional valve 38, and the other end is connected to the oil return port 11 of the crude oil tank 1.

[0046] The multi-output pressure-stabilizing oil circuit also includes a first pressure gauge 61, a second pressure gauge 62, and a third pressure gauge 63. The first pressure gauge 61 is located between the first check valve 36 and the pressure supply assembly 33, used for visually observing the real-time pressure of the multi-output pressure-stabilizing oil circuit. The second pressure gauge 62 is located between the pressure-stabilizing assembly 34 and the second check valve 37, used for visually observing the downstream pressure output by the pressure reducing valve 345. The third pressure gauge 63 is located between the second check valve 37 and the electro-hydraulic directional valve 38, used for visually monitoring the pressure of the customer equipment section at the oil outlet of the connected oil pipeline 31.

[0047] The multi-output pressure-stabilizing oil circuit also includes a first pressure sensor 51 and a second pressure sensor 52. Both the first pressure sensor 51 and the second pressure sensor 52 are electrically connected to the control unit. The first pressure sensor 51 is located between the first check valve 36 and the pressure supply component 33, and the second pressure sensor 52 is located between the pressure-stabilizing component 34 and the second check valve 37. In this embodiment, by placing the first pressure sensor 51 between the first check valve 36 and the pressure supply component 33, it is used to detect the pressure of the multi-output pressure-stabilizing oil circuit. The control unit collects the pressure data and controls the motor 21 based on the collected pressure data and the pressure setpoint to maintain the system pressure within the set pressure range. By placing the second pressure sensor 52 between the pressure-stabilizing component 34 and the second check valve 37, it is used to detect the pressure after the pressure reducing valve 345 outputs. The control unit collects the pressure data to monitor and determine whether the system output is normal. Furthermore, the control unit can adjust the pressure reducing valve 345 based on the collected pressure data, improving debugging efficiency and accuracy through direct data comparison.

[0048] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pressure-stabilized oil line having a multiple output, characterized by, The application relates to a stable pressure oil supply system, which comprises the following components: an oil inlet assembly (2) comprising an oil pump (22) connected with a crude oil tank (1); a stable pressure module (3) comprising an oil circuit pipeline (31) having an oil inlet (311) and a plurality of oil outlets, and a supply pressure assembly (33), a stable pressure assembly (34) and an electro-hydraulic reversing valve (38) arranged between the oil inlet (311) and the oil outlets, wherein the supply pressure assembly (33), the stable pressure assembly (34) and the electro-hydraulic reversing valve (38) are connected with a back oil outlet (11) of the crude oil tank (1), the oil inlet (311) is connected with the oil pump (22), the oil outlets comprise a first oil outlet (312) for connecting with a client oil circuit and at least one second oil outlet (313), and the first oil outlet (312) is connected with a liquid outlet end of the electro-hydraulic reversing valve (38); a first oil inlet (391) of the outlet control valve (39) is connected with a liquid inlet end of the electro-hydraulic reversing valve (38), a first back oil outlet (392) of the outlet control valve (39) is connected with the back oil outlet (11) of the crude oil tank (1), and an oil outlet end of the outlet control valve (39) is connected with the second oil outlet (313); a control unit, which is electrically connected with the electro-hydraulic reversing valve (38) and the outlet control valve (39).

2. The stabilized oil line with multiple outputs according to claim 1, characterized in that, The outlet control valve (39) is a three-position four-way electromagnetic valve.

3. The stabilized oil line with multiple outputs according to claim 2, characterized in that, The stable pressure module (3) further comprises a fourth back oil branch (381), one end of which is connected with the electro-hydraulic reversing valve (38), and the other end of which is in communication with the back oil outlet (11) of the crude oil tank (1).

4. The stabilized oil line with multiple outputs of claim 1, wherein, The application further comprises a safety assembly (35) comprising a third back oil branch (351) and an electromagnetic valve (352) and a second overflow valve (353) connected in parallel with the third back oil branch (351), one end of the third back oil branch (351) is in communication with the oil circuit pipeline (31), and the other end of the third back oil branch (351) is in communication with the back oil outlet (11) of the crude oil tank (1).

5. The stabilized oil line with multiple outputs of claim 1, wherein, The supply pressure assembly (33) comprises a supply pressure pipeline (331), a first stop valve (333) arranged on the supply pressure pipeline (331) and a pressure relief assembly (334), one end of the supply pressure pipeline (331) is in communication with the oil circuit pipeline (31), and the other end of the supply pressure pipeline (331) is arranged as an expansion port (332) for connecting with an energy accumulator (4), one end of the pressure relief assembly (334) is connected between the first stop valve (333) and the expansion port (332), and the other end of the pressure relief assembly (334) is connected with the back oil outlet (11) of the crude oil tank (1).

6. The stabilized oil line with multiple outputs of claim 5, wherein, The pressure relief assembly (334) comprises a first oil return branch (335), a first throttle valve (336) and a first overflow valve (337), one end of the first oil return branch (335) is communicated with the pressure supply pipeline (331), the other end is communicated with the oil return port (11) of the crude oil tank (1), the first throttle valve (336) and the first overflow valve (337) are connected in parallel on the first oil return branch (335).

7. The stabilized oil line with multiple outputs of claim 1, wherein, The pressure stabilizing assembly (34) is provided with at least two groups, and at least two groups of the pressure stabilizing assembly (34) are connected in parallel on the oil circuit pipeline (31), the pressure stabilizing assembly (34) comprises a second oil return branch (341) and a second throttle valve (342), a third throttle valve (343) and a pressure reducing valve (345) arranged on the oil circuit pipeline (31), the pressure reducing valve (345) is arranged between the second throttle valve (342) and the third throttle valve (343), one end of the second oil return branch (341) is connected with the pressure reducing valve (345), and the other end is communicated with the oil return port (11) of the crude oil tank (1).

8. The stabilized oil line with multiple outputs of claim 4, wherein, The safety assembly (35) and the pressure supply assembly (33) are provided with a first check valve (36), the pressure stabilizing oil circuit further comprises a second pressure sensor (52), and the second pressure sensor (52) and an electro-hydraulic reversing valve (38) are provided with a second check valve (37).

9. The stabilized oil line with multiple outputs of claim 8, wherein, Further comprising A first pressure gauge (61) is arranged between the first check valve (36) and the pressure supply assembly (33); A second pressure gauge (62) is arranged between the pressure stabilizing assembly (34) and the second pressure sensor (52) A third pressure gauge (63) is arranged between the second check valve (37) and the electro-hydraulic reversing valve (38).

10. The stabilized oil line with multiple outputs of claim 8, wherein, Further comprising: A first pressure sensor (51) is arranged between the first check valve (36) and the pressure supply assembly (33) and is electrically connected with the control unit; The second pressure sensor (52) is arranged between the pressure stabilizing assembly (34) and the electro-hydraulic reversing valve (38) and is electrically connected with the control unit.

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