High-pressure oil station capable of providing three different oil pressures

Abstract

The utility model discloses a high-pressure oil station capable of providing three different oil pressures, which relates to the technical field of high-pressure oil stations and comprises an oil station support, and components of the high-pressure oil station are integrally mounted at the top of the oil station support. The high-pressure oil station comprises a circulating pump, an oil tank, an oil injection port pipe connector, an oil cooler, a low-pressure pressure gauge set, a pressure transmitter set, an oil return filter, an air filter, a first oil return ball valve, an outlet ball valve, a first pressure reducing valve, a second oil return ball valve, a second pressure reducing valve block set, a pressure reducing valve outlet stop valve, an energy accumulator set, an energy accumulator support and a temperature measuring thermal resistor. According to the high-pressure oil station capable of providing the three different oil pressures, the two main oil pumps which are standby for each other are arranged, the main oil pumps can be constant-pressure variable plunger pumps, constant system oil pressures are established, different pressure values are set through the three different pressure reducing valves, and the three different oil pressures can be established and provided for three systems to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure oil station technical field, concretely is a kind of high pressure oil station capable of providing three different oil pressures. BACKGROUND

[0002] At present, the application of hydraulic system in various industries is very extensive, and the hydraulic application technology is also becoming mature. And with the development and application of computer, the development of hydraulic system automation, integration and modularization is very rapid, and some old systems that have been put into operation for many years are facing transformation and upgrading to meet the increasing demand for automation.

[0003] The defects of the existing high pressure oil station are:

[0004] 1. The existing high pressure oil station mostly provides single use oil pressure, and cannot meet the requirements of simultaneous operation of multiple different pressure actuators at the same time;

[0005] 2. The pressure regulating mode of the existing oil station is mostly quantitative pump output, overflow valve pressure regulating mode or constant pressure variable pump body pressure regulating mode; the pressure of the existing oil station branch is mostly adjusted by throttle valve, which is easy to change and fluctuate, and cannot be output constantly. Therefore, a high pressure oil station capable of providing three different oil pressures is proposed. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiencies of the prior art, the utility model provides a high pressure oil station capable of providing three different oil pressures, which solves the problems raised in the above background technology.

[0007] In order to achieve the above object, the utility model discloses a kind of high-pressure oil station capable of providing three different oil pressures, including oil station support, the top of the oil station support is integrally installed with each component of high-pressure oil station, and each component of high-pressure oil station includes circulating pump, oil tank, oil filling port pipe joint, oil cooler, low-pressure pressure gauge group, pressure transmitter group, oil return filter, air filter, first oil return ball valve, outlet ball valve, first pressure reducing valve, second oil return ball valve, second pressure reducing valve block group, pressure reducing valve outlet stop valve, accumulator group, accumulator support, temperature measuring thermistor, pump body oil discharge stop valve, main oil pump, accumulator control block group, motor, oil suction ball valve, magnetic flap liquid level meter, liquid level meter instrument valve, high-pressure pressure gauge group I, pump outlet integrated block, temperature measuring thermistor, plug-in stop valve, system safety valve, accumulator clamp, oil tank blowdown valve, circulating pump motor, circulating pump bell-shaped cover coupling group, circulating pump oil suction ball valve group, filter group, first pressure reducing valve block group and second pressure reducing valve, the top of the oil station support is fixedly connected with oil tank, the top of the oil station support is fixedly connected with circulating pump motor, the top of the oil station support is fixedly connected with two groups of motors, two groups of the motor are connected with main oil pump by bell-shaped cover coupling, the motor, bell-shaped cover coupling and main oil pump form motor pump assembly, 2 sets of high-pressure pressure gauge group II are installed on the pump outlet integrated block, 3 plug-in stop valves are installed on the pump outlet integrated block, 4 one-way valves are installed on the pump outlet integrated block, 3 system safety valves are installed on the pump outlet integrated block, 2 sets of filter groups are installed on the pump outlet integrated block, and 2 sets of the filter group are respectively installed at the outlet end of 2 main oil pumps.

[0008] Preferably, the pump outlet integrated block is connected with the second pressure reducing valve block group inside by two pipelines, the pump outlet integrated block is communicated with the first pressure reducing valve block group inside by a pipeline, 2 sets of second pressure reducing valves are installed on the second pressure reducing valve block group, and the first pressure reducing valve is installed on the first pressure reducing valve block group; after oil is sucked from the oil tank, the oil is pumped into the pump outlet integrated block to establish a mother pipe high-pressure oil; the oil station is provided with 2 sets of motor pump assemblies, which are arranged in parallel; one set is used, and the other set is standby; the oil in the second pressure reducing valve block assembly is adjusted to the required pressure by 2 sets of second pressure reducing valves installed thereon, and then supplied from the pressure reducing valve outlet stop valve; the oil in the first pressure reducing valve block assembly is adjusted to the required pressure by the first pressure reducing valve installed thereon, and then supplied from the outlet ball valve.

[0009] Preferably, the number of accumulator groups is 2 sets, and 2 sets of the accumulator group are installed on the accumulator support by accumulator clamp; two groups of the accumulator support are welded and fixed on the oil station support; the system pressure oil mother pipe and the oil return pipe are connected by the accumulator control block group assembly.

[0010] Preferably, the low pressure gauge group, the three pressure transmitter groups and the six high pressure gauge group I are installed on the oil tank and connected to the pipeline requiring oil pressure measurement through oil pipes respectively.

[0011] Preferably, the magnetic float liquid level meter and the liquid level meter instrument valve are welded on the oil tank for indicating and feeding back the oil tank liquid level.

[0012] Preferably, the oil return filter, the air filter, the first oil return ball valve, the second oil return ball valve and the temperature measuring thermistor are installed on the oil tank.

[0013] Preferably, the circulating pump motor is connected with the circulating pump through a circulating pump bell-shaped cover coupling group, absorbs oil through a circulating pump oil suction ball valve assembly, pumps into a cold oil device for cooling, and then returns to the oil tank through an oil return filter.

[0014] The utility model provides a high pressure oil station which can provide three different oil pressures, and has the following beneficial effects:

[0015] 1. The high pressure oil station which can provide three different oil pressures is provided with two main oil pumps which are used as each other's backup, the main oil pump can be a constant pressure variable plunger pump, a constant system oil pressure is established, different pressure values are set through three different pressure reducing valves, three different oil pressures can be established, and three systems are provided.

[0016] 2. The high pressure oil station which can provide three different oil pressures is provided with system safety valves at the system oil pressure and the three-way oil pressure after the pressure reducing valves, the system safety valves use overflow valves as safety valves, ensure that the oil pressure does not damage the system due to overpressure, the circulating pump absorbs oil from the inside of the oil tank, pumps into a cold oil device for cooling, and then returns to the oil tank through an oil return filter, the circulating cooling and filtering system can ensure the quality of the system oil. DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a left side structure schematic view of the utility model;

[0019] Figure 3 It is a top view structure schematic view of the utility model;

[0020] Figure 4 It is a left view of the utility model; Figure 2

[0021] Figure 5 It is a front view of the utility model; Figure 2

[0022] Figure 6 It is a front view of the utility model; Figure 2 ​​right view of the

[0023] Figure 7 The hydraulic principle diagram of the utility model.

[0024] In the figure: 1, oil station support; 2, circulating pump; 3, oil tank; 4, oil filling port pipe joint; 5, oil cooler; 6, low pressure pressure gauge group; 7, pressure transmitter group; 8, oil return filter; 9, air filter; 10, first oil return ball valve; 11, outlet ball valve; 12, first pressure reducing valve; 13, second oil return ball valve; 14, second pressure reducing valve block group; 15, pressure reducing valve outlet stop valve; 16, accumulator group; 17, accumulator support; 18, temperature measuring thermistor; 19, pump body oil discharge stop valve; 20, main oil pump; 21, accumulator control block group; 22, motor; 23, oil suction ball valve; 24, magnetic flap liquid level meter; 25, liquid level meter instrument valve; 26, high pressure pressure gauge group I; 27, pump outlet integrated block; 28, high pressure pressure gauge group II; 29, plug-in stop valve; 30, system safety valve; 31, accumulator clamp; 32, oil tank blowdown valve; 33, circulating pump motor; 34, circulating pump bell-shaped cover coupling group; 35, circulating pump oil suction ball valve group; 36, filter group; 37, first pressure reducing valve block group; 38, second pressure reducing valve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] Please refer to Figures 1 to 7The utility model provides a kind of technical scheme: a high-pressure oil station capable of providing three different oil pressures, including oil station support 1, the top of oil station support 1 is integrally installed with each component of high-pressure oil station, and each component of high-pressure oil station includes circulating pump 2, oil tank 3, oil filling port pipe joint 4, oil cooler 5, low-pressure pressure gauge group 6, pressure transmitter group 7, oil return filter 8, air filter 9, first oil return ball valve 10, outlet ball valve 11, first pressure reducing valve 12, second oil return ball valve 13, second pressure reducing valve block group 14, pressure reducing valve outlet stop valve 15, accumulator group 16, accumulator support 17, temperature measuring thermistor 18, pump body oil discharge stop valve 19, main oil pump 20, accumulator control block group 21, motor 22, oil suction ball valve 23, magnetic flap liquid level meter 24, liquid level meter instrument valve 25, high-pressure pressure gauge group I 26, pump outlet integrated block 27, temperature measuring thermistor 18, plug-in stop valve 29, system safety valve 30, accumulator clamp 31, oil tank blowdown valve 32, circulating pump motor 33, circulating pump bell-shaped cover shaft coupling group 34, circulating pump oil suction ball valve group 35, filter group 36, first pressure reducing valve block group 37 and second pressure reducing valve 38, the top of oil station support 1 is fixedly connected with oil tank 3, the top of oil station support 1 is fixedly connected with circulating pump motor 33, the top of circulating pump motor 33 oil station support 1 is fixedly connected with two groups of motor 22, two groups of motor 22 are connected with main oil pump 20 through bell cover shaft coupling, motor 22, bell cover shaft coupling and main oil pump 20 form motor pump assembly, 2 sets of high-pressure pressure gauge group II 28 are installed on pump outlet integrated block 27, 3 plug-in stop valves 29 are installed on pump outlet integrated block 27, 4 one-way valves are installed on pump outlet integrated block 27, 3 system safety valves 30 are installed on pump outlet integrated block 27, 2 sets of filter groups 36 are installed on pump outlet integrated block 27, and 2 sets of filter groups 36 are respectively installed at the outlet end of 2 main oil pumps 20.

[0027] Pump outlet integrated block 27 is connected with the inside of second pressure reducing valve block group 14 through two pipelines, pump outlet integrated block 27 is communicated with the inside of first pressure reducing valve block group 37 through a pipeline, 2 sets of second pressure reducing valves 38 are installed on second pressure reducing valve block group 14, and first pressure reducing valve 12 is installed on first pressure reducing valve block group 37.

[0028] The number of accumulator group 16 is 2 sets, and 2 sets of accumulator group 16 are installed on accumulator support 17 through accumulator clamp 31, and two groups of accumulator supports 17 are welded and fixed on oil station support 1.

[0029] Low-pressure pressure gauge group 6, 3 sets of pressure transmitter group 7 and 6 sets of high-pressure pressure gauge group I 26 are all installed on oil tank 3.

[0030] Magnetic flap liquid level meter 24 and liquid level meter instrument valve 25 are all welded and installed on oil tank 3.

[0031] The oil return filter 8, the air filter 9, the first oil return ball valve 10, the second oil return ball valve 13 and the temperature measuring resistance 18 are all installed on the oil tank 3.

[0032] The circulating pump motor 33 is connected with the circulating pump 2 through the circulating pump bell-shaped cover coupling group 34.

[0033] In summary, the high-pressure oil station capable of providing three different oil pressures is provided by Figure 7 It can be seen that the main oil pump 20A sucks oil through the oil suction filter A, pumps the oil into the system main pipe through the high-pressure filter A, controls the outlet pressure of the main oil pump 20A through the system safety valve 30A to not exceed 25 MPa, enters two high-pressure systems through the parallel one-way valve B and the one-way valve D to establish pressure oil respectively, the main oil pump 20B sucks oil through the oil suction filter B, pumps the oil into the system main pipe through the high-pressure filter B, controls the outlet pressure of the main oil pump 20B through the system safety valve 30B to not exceed 25 MPa, enters two high-pressure systems through the parallel one-way valve A and the one-way valve C to establish pressure oil respectively, the two oil pumps are constant-pressure variable plunger pumps and are used as backup for each other, the pump body returns oil to the 1# oil cooler 5 for cooling and then returns the oil, the system safety valve 30 is an overflow valve;

[0034] The oil pressure of the two high-pressure systems is 21 MPa, the system safety valve 30C is set to 25 MPa to ensure that the high-pressure system pressure will not overpressure to cause system damage, the oil pressure of the high-pressure oil circuit established through the one-way valve A and the one-way valve B is 21 MPa, the system safety valve 30C is set to 25 MPa to ensure that the high-pressure system pressure will not overpressure to cause system damage, the accumulator group 16 is connected in parallel on the oil circuit, the accumulator group 16 includes two 40L accumulators to stabilize the system oil pressure and meet the system instantaneous oil demand, then passes through the parallel 1# second pressure reducing valve 38 and the 2# second pressure reducing valve 38 to establish the oil pressure and P3, and passes through the system safety valve 30E and the system safety valve 30F to ensure that the P3 oil pressure will not overpressure, the oil pressure of the high-pressure oil circuit established through the one-way valve C and the one-way valve D is 21 MPa, then passes through the first pressure reducing valve block group 37 to establish the oil pressure P2, and passes through the system safety valve 30D to ensure that the P2 oil pressure will not overpressure, the pressure gauge PI1 and the pressure gauge PI2 display the outlet pressures of the main oil pump 20A and the main oil pump 20B respectively, the pressure gauge PI3 displays the system pressure after the one-way valve A and the one-way valve B, the pressure gauge PI4 displays the P2 pressure, the pressure gauge PI5 displays the pressure, and the pressure gauge PI6 displays the P3 pressure;

[0035] The PT1, PT2 and PT3 in the pressure transmitter group 7 are used for remotely displaying the system pressure after the one-way valve A and the one-way valve B, and can remotely transmit the 4-20mA current signal for remote control; the circulating pump 2 sucks oil from the inside of the oil tank 3, pumps into the oil cooler 5 for cooling, and then returns to the oil tank 3 through the oil return filter 8, which is an independent circulating cooling filter circuit, ensuring the quality of the system oil, and the oil injection port is used for injecting oil into the oil tank; the one-way valve can ensure that the circuit oil pressure does not exceed 0.3MPa, and the pressure gauge PI7 is used for displaying the circuit oil pressure.

[0036] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-pressure oil station capable of providing three different oil pressures, comprising an oil station support (1), characterized in that: The top of the oil station support (1) is integrally provided with high-pressure oil station components, and the high-pressure oil station components include a circulating pump (2), an oil tank (3), an oil filling port pipe joint (4), a cold oil device (5), a low-pressure pressure gauge set (6), a pressure transmitter set (7), an oil return filter (8), an air filter (9), a first oil return ball valve (10), an outlet ball valve (11), a first pressure reducing valve (12), a second oil return ball valve (13), a second pressure reducing valve block set (14), a pressure reducing valve outlet stop valve (15), an accumulator set (16), an accumulator support (17), a temperature measuring thermistor (18), a pump body oil discharge stop valve (19), a main oil pump (20), an accumulator control block set (21), a motor (22), an oil suction ball valve (23), a magnetic flip plate liquid level meter (24), a liquid level meter instrument valve (25), a high-pressure pressure gauge set I (26), a pump outlet integrated block (27), a temperature measuring thermistor (18), an insertion type stop valve (29), a system safety valve (30), an accumulator clamp (31), an oil tank blowdown valve (32), a circulating pump motor (33), a circulating pump bell-shaped cover coupling set (34), a circulating pump oil suction ball valve set (35), a filter set (36), a first pressure reducing valve block set (37), and a second pressure reducing valve (38).

2. The high-pressure oil station capable of providing three different oil pressures according to claim 1, characterized in that: The top of the oil station support (1) is fixedly connected with the oil tank (3), and the top of the oil station support (1) is fixedly connected with the circulating pump motor (33).

3. The high-pressure oil station capable of providing three different oil pressures according to claim 1, characterized in that: The circulating pump motor (33) is fixedly connected with two groups of motors (22) on the top of the oil station support (1), and the two groups of motors (22) are both connected with the main oil pump (20) through the bell-shaped cover coupling.

4. The high-pressure oil station capable of providing three different oil pressures according to claim 1, characterized in that: The motor (22), the bell-shaped cover coupling, and the main oil pump (20) form a motor pump assembly. Two sets of high-pressure pressure gauge sets II (28) are installed on the pump outlet integrated block (27), three insertion type stop valves (29) are installed on the pump outlet integrated block (27), four one-way valves are installed on the pump outlet integrated block (27), three system safety valves (30) are installed on the pump outlet integrated block (27), and two filter sets (36) are installed on the pump outlet integrated block (27). The pump outlet integrated block (27) is connected with the second pressure reducing valve block set (14) inside through two pipelines, the pump outlet integrated block (27) is connected with the first pressure reducing valve block set (37) inside through a pipeline, two sets of second pressure reducing valves (38) are installed on the second pressure reducing valve block set (14), and a first pressure reducing valve (12) is installed on the first pressure reducing valve block set (37). The number of the accumulator set (16) is two sets, and the two sets of accumulator sets (16) are both installed on the accumulator support (17) through the accumulator clamp (31). The low-pressure pressure gauge set (6), three sets of pressure transmitter sets (7), and six sets of high-pressure pressure gauge sets I (26) are all installed on the oil tank (3).

5. The high-pressure oil station capable of providing three different oil pressures according to claim 1, characterized in that: The magnetic reed liquid level meter (24) and the liquid level meter instrument valve (25) are welded and installed on the oil tank (3).

6. The high-pressure oil station capable of providing three different oil pressures according to claim 1, characterized in that: The oil return filter (8), the air filter (9), the first oil return ball valve (10), the second oil return ball valve (13) and the temperature measuring resistance (18) are all installed on the oil tank (3).

7. The high-pressure oil station capable of providing three different oil pressures according to claim 1, characterized in that: The circulating pump motor (33) is connected with the circulating pump (2) through the circulating pump bell-shaped cover coupling group (34).

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