Auxiliary oil supply device

Abstract

The utility model discloses an auxiliary oil supply device which comprises an auxiliary oil supply assembly, and the auxiliary oil supply assembly comprises an air bag, an air inflation pipe, a first pressure sensor, a first electromagnetic valve, an energy storage tank, an oil conveying pipe, a second electromagnetic valve, an oil filling pipe, a second pressure sensor and a closing valve. The bottom end of the inflation pipe is fixedly connected to the top of the outer side wall of the air bag and communicates with the air bag. Nitrogen is filled into the air bag, the pressure in the energy storage tank is increased after the air bag expands, when the main oil pump breaks down, the external auxiliary oil pump is automatically started, the controller controls the second electromagnetic valve to be opened at the same time, and then lubricating oil in the energy storage tank is automatically supplemented into the compressor oil inlet pipe so as to supplement oil pressure of an oil supply system. Therefore, the auxiliary oil pump can have sufficient time to start, an oil supply system is ensured to be normal, the condition that an interlocking stop host is triggered due to too fast oil supply pressure drop is avoided, and stable operation of the system is ensured.

Description

Technical field:

[0001] The utility model relates to a device, in particular to an auxiliary oil supply device, belonging to the technical field of oil supply systems. Background technology:

[0002] When the coke oven gas fine desulfurization and PSA hydrogen production device are working, the raw gas transportation work is completed by 4 reciprocating coke oven gas compressors. The reciprocating coke oven gas compressor is the power core of the entire hydrogen production device. The compressor oil station uses two oil pumps, one main and one auxiliary, to supply oil. The oil pumps deliver lubricating oil to the transmission parts of the compressor for lubrication. The oil supply pressure is 0.35-0.4Mpa. In normal operation, the main oil pump supplies oil, and the auxiliary oil pump is an interlocking protection oil pump. When the main oil pump fails or other reasons cause the oil supply pressure to drop rapidly and the oil pressure is ≤0.30Mpa, the auxiliary oil pump automatically starts to supply oil to ensure that the oil supply pressure reaches the normal operating conditions of the unit.

[0003] However, it is found in actual use that when the oil supply pressure reaches the auxiliary pump starting condition, the standby oil pump is often not fully started. The oil supply pressure drops too quickly and triggers the interlocking host shutdown condition, that is, the oil pressure is ≤0.15Mpa, which leads to the compressor interlocking protection shutdown, causing an impact on the smooth operation of the system. Therefore, an auxiliary oil supply device is proposed. Utility model content:

[0004] The purpose of the utility model is to provide an auxiliary oil supply device to solve one of the problems raised in the above background technology.

[0005] The utility model is implemented by the following technical scheme: an auxiliary oil supply device, including an auxiliary oil supply assembly, the auxiliary oil supply assembly including an air bag, an air filling pipe, a first pressure sensor, a first solenoid valve, an energy storage tank, an oil delivery pipe, a second solenoid valve, a refueling pipe, a second pressure sensor and a closing valve;

[0006] The bottom end of the inflation tube is fixedly connected to the top of the outer side wall of the airbag and is connected to the airbag. The airbag is located inside the energy storage tank. The first pressure sensor and the first solenoid valve are both installed on the outer side wall of the inflation tube. The first pressure sensor is located between the first solenoid valve and the airbag. The refueling pipe is installed at the lower part of the outer side wall of the energy storage tank and is connected to the energy storage tank. The second pressure sensor and the closing valve are both installed on the outer side wall of the refueling pipe. The oil delivery pipe is installed at the bottom of the outer side wall of the energy storage tank and is connected to the energy storage tank. The second solenoid valve is installed on the outer side wall of the oil delivery pipe.

[0007] As a further preferred embodiment of the present technical solution: the second pressure sensor is located between the closing valve and the energy storage tank.

[0008] As a further preferred embodiment of the present technical solution: the first solenoid valve and the first pressure sensor are both located above the energy storage tank, and the inflation pipe is fixedly connected to the energy storage tank.

[0009] As a further preferred embodiment of the technical solution: the top end of the inflation pipe is fixedly connected to an air separation nitrogen main pipe via a flange.

[0010] As a further preferred embodiment of the technical solution: one end of the oil delivery pipe away from the energy storage tank is fixedly connected to the compressor oil inlet pipe through a flange.

[0011] As a further preferred embodiment of the technical solution: a support assembly is installed on the outer side wall of the energy storage tank, and the support assembly includes a protective net, three support frames and a base;

[0012] The protective net is fixedly connected to the outer side wall of the energy storage tank, and the bottom ends of the three support frames are symmetrically fixedly connected to the upper surface of the base.

[0013] As a further preferred embodiment of the present technical solution: the top end of the support frame is fixedly connected to the bottom of the outer side wall of the protective net.

[0014] As a further preferred embodiment of the present technical solution: a controller, a display screen and an alarm are installed on the upper part of the outer side wall of the protective net.

[0015] Advantages of the utility model: the utility model fills nitrogen into the airbag, and the pressure in the energy storage tank increases after the airbag expands. The pressure values ​​of the airbag and the energy storage tank can be monitored by the first pressure sensor and the second pressure sensor. When the main oil pump fails, the external auxiliary oil pump starts automatically, and at the same time, the controller controls the second solenoid valve to open, and then the lubricating oil in the energy storage tank is automatically supplemented to the oil inlet pipe of the compressor to supplement the oil pressure of the oil supply system, so that the auxiliary oil pump can have sufficient time to start, ensuring the normal operation of the oil supply system, avoiding the oil supply pressure dropping too fast and triggering the interlocking host shutdown condition, thereby ensuring the smooth operation of the system. Description of the drawings:

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the auxiliary oil supply component of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection between the air bag and the inflation tube of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation position of the airbag of the utility model;

[0021] Figure 5 This is a schematic diagram of the support assembly structure of the utility model.

[0022] In the figure: 101, auxiliary oil supply assembly; 11, air bag; 12, inflation pipe; 13, first pressure sensor; 14, first solenoid valve; 15, energy storage tank; 16, oil pipeline; 17, second solenoid valve; 18, refueling pipe; 19, second pressure sensor; 20, closing valve; 21, air separation nitrogen main pipe; 22, compressor oil inlet pipe; 301, support assembly; 31, protection net; 32, controller; 33, display screen; 34, alarm; 35, support frame; 36, base. Specific implementation method:

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-5 The utility model provides a technical solution: an auxiliary oil supply device, including an auxiliary oil supply assembly 101, the auxiliary oil supply assembly 101 includes an air bag 11, an air filling pipe 12, a first pressure sensor 13, a first solenoid valve 14, an energy storage tank 15, an oil delivery pipe 16, a second solenoid valve 17, a refueling pipe 18, a second pressure sensor 19 and a closing valve 20;

[0026] The bottom end of the inflation tube 12 is fixedly connected to the top of the outer wall of the airbag 11 and is connected to the airbag 11. The airbag 11 is located inside the energy storage tank 15. The first pressure sensor 13 and the first solenoid valve 14 are both installed on the outer wall of the inflation tube 12. The first pressure sensor 13 is located between the first solenoid valve 14 and the airbag 11. The refueling pipe 18 is installed on the lower part of the outer wall of the energy storage tank 15 and is connected to the energy storage tank 15. The second pressure sensor 19 and the closing valve 20 are both installed on the outer wall of the refueling pipe 18. The oil delivery pipe 16 is installed at the bottom of the outer wall of the energy storage tank 15 and is connected to the energy storage tank 15. The second solenoid valve 17 is installed on the outer wall of the oil delivery pipe 16.

[0027] In this embodiment, specifically: the second pressure sensor 19 is located between the closing valve 20 and the energy storage tank 15 , and the pressure value in the energy storage tank 15 can be monitored by the second pressure sensor 19 .

[0028] In this embodiment, specifically: the first solenoid valve 14 and the first pressure sensor 13 are both located above the energy storage tank 15, the charging pipe 12 is fixedly connected to the energy storage tank 15, and the top of the charging pipe 12 is fixedly connected to the air separation nitrogen main pipe 21 through a flange. Nitrogen is filled into the charging pipe 12 through the air separation nitrogen main pipe 21, and the nitrogen flows into the airbag 11, which can increase the oil pressure in the energy storage tank 15.

[0029] In this embodiment, specifically: one end of the oil pipe 16 away from the energy storage tank 15 is fixedly connected to the compressor oil inlet pipe 22 through a flange, and then when the second solenoid valve 17 is opened, the lubricating oil in the energy storage tank 15 flows into the compressor oil inlet pipe 22 through the oil pipe 16.

[0030] In this embodiment, specifically: a support assembly 301 is installed on the outer wall of the energy storage tank 15, and the support assembly 301 includes a protective net 31, three support frames 35 and a base 36;

[0031] The protective net 31 is fixedly connected to the outer wall of the energy storage tank 15, the bottom ends of the three support frames 35 are symmetrically fixedly connected to the upper surface of the base 36, and the top ends of the support frames 35 are fixedly connected to the bottom of the outer wall of the protective net 31. The support frames 35 and the base 36 can enhance the overall stability, and the energy storage tank 15 can be protected by the protective net 31.

[0032] In this embodiment, specifically: a controller 32, a display screen 33 and an alarm 34 are installed on the upper part of the outer wall of the protective net 31, and the electrical output end of the controller 32 is electrically connected to the electrical input ends of the first solenoid valve 14, the second solenoid valve 17, the first pressure sensor 13, the second pressure sensor 19, the display screen 33 and the alarm 34 through a relay, and the electrical input end of the controller 32 is connected to an external power supply to supply power to the first solenoid valve 14, the second solenoid valve 17, the first pressure sensor 13, the second pressure sensor 19, the display screen 33 and the alarm 34. The signal sending ends of the first pressure sensor 13 and the second pressure sensor 19 are connected to the signal receiving ends of the controller 32 and the display screen 33 respectively. When the pressure value is abnormal, the controller 32 controls the alarm 34 to work, and the signal receiving end of the controller 32 is also connected to the signal sending end of the external oil supply system to control the auxiliary oil supply;

[0033] The model of the controller 32 is OHR-PR10, and the model of the first pressure sensor 13 and the second pressure sensor 19 are both OHR-3051F2.

[0034] Working principle or structural principle, when in use, the top of the charging pipe 12 is connected to the air separation nitrogen main pipe 21, the oil delivery pipe 16 is connected to the compressor oil inlet pipe 22, the refueling pipe 18 is connected to the oil supply pipe, the closing valve 20 is opened, and the lubricating oil is transported to the inside of the energy storage tank 15 and is located outside the air bag 11. After the oil filling is completed, the closing valve 20 is closed, and the first solenoid valve 14 is controlled to open by the controller 32. At this time, nitrogen flows into the charging pipe 12 through the air separation nitrogen main pipe 21 and is filled into the air bag 11, and the air bag 11 is filled with nitrogen. After the gas expands, the pressure in the energy storage tank 15 increases. The pressure value of the airbag 11 can be monitored by the first pressure sensor 13, and the pressure value of the energy storage tank 15 can be monitored by the second pressure sensor 19. Then, the pressure value of the airbag 11 and the pressure value of the energy storage tank 15 are displayed in real time on the display screen 33. When the pressure value of the energy storage tank 15 reaches 0.4Mpa, the controller 32 controls the first solenoid valve 14 to close. At this time, the working oil pressure stored in the space inside the energy storage tank 15 and outside the airbag 11 is 0.4Mpa lubricating oil;

[0035] When the main oil pump fails or the oil pressure in the compressor oil inlet pipe 22 is lower than the rated value, the external auxiliary oil pump starts automatically, and the controller 32 controls the second solenoid valve 17 to open, so that the lubricating oil in the energy storage tank 15 is automatically replenished into the compressor oil inlet pipe 22 to replenish the oil pressure of the oil supply system, so that the auxiliary oil pump can have sufficient time to start, ensuring the normal operation of the oil supply system, avoiding the oil supply pressure dropping too fast and triggering the interlocking host shutdown condition, and ensuring the smooth operation of the system.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary oil supply device, characterized in that: The auxiliary oil supply assembly (101) comprises an air bag (11), an air filling pipe (12), a first pressure sensor (13), a first electromagnetic valve (14), an energy storage tank (15), an oil delivery pipe (16), a second electromagnetic valve (17), a refueling pipe (18), a second pressure sensor (19) and a closing valve (20); The bottom end of the inflation pipe (12) is fixedly connected to the top of the outer wall of the airbag (11) and is in communication with the airbag (11); the airbag (11) is located inside the energy storage tank (15); the first pressure sensor (13) and the first solenoid valve (14) are both installed on the outer wall of the inflation pipe (12); the first pressure sensor (13) is located between the first solenoid valve (14) and the airbag (11); the refueling pipe (18) is installed on the lower part of the outer wall of the energy storage tank (15) and is in communication with the energy storage tank (15); the second pressure sensor (19) and the closing valve (20) are both installed on the outer wall of the refueling pipe (18); the oil delivery pipe (16) is installed on the bottom of the outer wall of the energy storage tank (15) and is in communication with the energy storage tank (15); and the second solenoid valve (17) is installed on the outer wall of the oil delivery pipe (16).

2. The auxiliary oil supply device according to claim 1, characterized in that: The second pressure sensor (19) is located between the closing valve (20) and the energy storage tank (15).

3. An auxiliary oil supply device according to claim 2, characterized in that: The first solenoid valve (14) and the first pressure sensor (13) are both located above the energy storage tank (15), and the inflation pipe (12) is fixedly connected to the energy storage tank (15).

4. The auxiliary oil supply device according to claim 3, characterized in that: The top end of the inflation pipe (12) is fixedly connected to an air separation nitrogen main pipe (21) via a flange.

5. The auxiliary oil supply device according to claim 3, characterized in that: One end of the oil delivery pipe (16) away from the energy storage tank (15) is fixedly connected to a compressor oil inlet pipe (22) via a flange.

6. The auxiliary oil supply device according to claim 5, characterized in that: A support assembly (301) is installed on the outer side wall of the energy storage tank (15), and the support assembly (301) includes a protective net (31), three support frames (35) and a base (36); The protective net (31) is fixedly connected to the outer wall of the energy storage tank (15), and the bottom ends of the three support frames (35) are symmetrically fixedly connected to the upper surface of the base (36).

7. An auxiliary oil supply device according to claim 6, characterized in that: The top end of the support frame (35) is fixedly connected to the bottom of the outer side wall of the protection net (31).

8. An auxiliary oil supply device according to claim 7, characterized in that: A controller (32), a display screen (33) and an alarm (34) are installed on the upper portion of the outer side wall of the protection net (31).

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