CN-224214342-U - External oil pump device of hydraulic coupler

Abstract

The utility model discloses an external oil pump device of a hydraulic coupler, and belongs to the technical field of thermal power generation equipment. The device aims at solving the problems that a single auxiliary oil pump of the existing hydraulic coupler is easy to fail and affects the standby safety of a generator set during long-term operation, and the device realizes redundant design by connecting a main oil pump and a standby oil pump in parallel. The device is also provided with a one-way valve to prevent backflow, the pressure sensor monitors oil pressure, the flow regulating valve regulates oil quantity, and the maintenance convenience is improved through the quick-dismantling flange and the maintenance observation window. According to the utility model, the double pumps are mutually standby, so that the hydraulic coupler can still maintain the lubricating oil pressure when a single oil pump fails, the standby safety of the generator set is ensured, meanwhile, the online maintenance of the failed oil pump is supported, and the reliability and the operation and maintenance efficiency of the system are obviously improved.

Inventors

• ZHU BIN
• YE WEI
• ZHANG ZONGHUI

Assignees

• 江苏华美热电有限公司

Dates

Publication Date

20260508

Application Date

20250519

Claims (8)

1. 1. The utility model provides an external oil pump device of fluid coupling, includes fluid coupling (1), main oil pump (2), reserve oil pump (3) and pipeline, its characterized in that: An oil inlet of the main oil pump (2) and an oil inlet of the backup oil pump (3) are connected to the side wall of the ingress pipe (4) in parallel; An oil outlet of the main oil pump (2) and an oil outlet of the backup oil pump (3) are connected in parallel to the side wall of the delivery pipe (5) and are connected to an oil inlet of the hydraulic coupler (1) through the delivery pipe (5); and switching valves (6) are respectively arranged on the pipelines of the oil inlets and the oil outlets of the main oil pump (2) and the standby oil pump (3).
2. 2. The external oil pump device of a fluid coupling according to claim 1, characterized in that the switching valve (6) is a shut-off valve or a solenoid valve.
3. 3. The external oil pump device of the hydraulic coupler according to claim 1, wherein the oil outlet pipelines of the main oil pump (2) and the backup oil pump (3) are provided with one-way valves for preventing the backflow of hydraulic oil.
4. 4. The external oil pump device of the hydraulic coupler according to claim 1, wherein a maintenance observation window is arranged on a shell of the hydraulic coupler (1), and the observation window covers connection areas of the main oil pump (2) and the backup oil pump (3) and pipelines.
5. 5. The external oil pump device of the fluid coupling according to claim 1, wherein the introducing pipe (4) is a supply line of hydraulic oil, and a pressure sensor for monitoring the pressure of the hydraulic oil is provided on the introducing pipe (4).
6. 6. The external oil pump device of the hydraulic coupler according to claim 1, wherein the delivery pipe (5) is provided with a flow regulating valve for regulating the flow of hydraulic oil entering the working chamber of the hydraulic coupler (1).
7. 7. The external oil pump device of the hydraulic coupler according to claim 1, wherein the main oil pump (2) and the backup oil pump (3) are both installed on the base (7), the base (7) is of a frame structure and is provided with a detachable protective shell, and the protective shell can protect the main oil pump (2) and the backup oil pump (3) and is provided with a heat dissipation hole.
8. 8. The external oil pump device of the hydraulic coupler according to claim 1, wherein the main oil pump (2) and the backup oil pump (3) are connected with the inlet pipe (4) and the outlet pipe (5) through quick-release flanges with sealing gaskets.

Description

External oil pump device of hydraulic coupler Technical Field The utility model relates to the technical field of thermal power generation equipment, in particular to an external oil pump device of a hydraulic coupler. Background The fluid coupling is used as an important transmission device of a thermal generator set, and the safe operation of the fluid coupling depends on stable lubricating oil supply. Currently, the auxiliary oil pump of the fluid coupling is generally configured in a single unit, and needs to continuously operate for 24 hours to maintain a standby state. However, this technique has the following drawbacks: The single oil pump is easy to break down after long-term operation, and once the hydraulic coupler loses standby capability due to the fault, the safe start and stop of the generator set are directly affected; the hydraulic coupler cannot guarantee the safety of the system during maintenance after the oil pump is in failure and has great potential safety hazard. In order to solve the above problems, the present utility model provides an external oil pump device of a hydraulic coupler, which realizes mutual standby through parallel dual oil pump design, so as to ensure the reliability of the hydraulic coupler during standby. Disclosure of utility model In order to solve the technical problems in the background art, the utility model provides an external oil pump device of a hydraulic coupler. The utility model provides a parallel oil pump device of a hydraulic coupler, which comprises the hydraulic coupler, a main oil pump, a backup oil pump and a pipeline; An oil inlet of the main oil pump and an oil inlet of the standby oil pump are connected to the side wall of the ingress pipe in parallel; The oil outlet of the main oil pump and the oil outlet of the backup oil pump are connected in parallel to the side wall of the delivery pipe and are connected to the oil inlet of the hydraulic coupler through the delivery pipe; and switching valves are arranged on the pipelines of the oil inlets and the oil outlets of the main oil pump and the standby oil pump. Preferably, the switching valve is a shut-off valve or a solenoid valve. Preferably, the oil outlet pipelines of the main oil pump and the backup oil pump are provided with one-way valves for preventing the backflow of hydraulic oil. Preferably, a maintenance observation window is arranged on the shell of the hydraulic coupler, and the observation window covers the connection areas of the main oil pump and the backup oil pump and the pipeline. Preferably, the ingress pipe is a supply pipeline of hydraulic oil, and a pressure sensor for monitoring the pressure of the hydraulic oil is arranged on the ingress pipe. Preferably, the delivery pipe is provided with a flow regulating valve for regulating the flow of hydraulic oil entering the working cavity of the hydraulic coupler. Preferably, the main oil pump and the backup oil pump are both installed on the base, the base is of a frame structure and is provided with a detachable protective shell, and the protective shell can protect the main oil pump and the backup oil pump and is provided with a heat dissipation hole. Preferably, the main oil pump and the backup oil pump are connected with the ingress pipe and the egress pipe through quick-release flanges with sealing gaskets. According to the external oil pump device of the hydraulic coupler, the main oil pump and the spare oil pump are mutually standby, the other oil pump can be started rapidly through the switching valve when any one of the oil pumps fails to ensure that the lubricating oil pressure during the standby period of the hydraulic coupler is stable, the single oil pump does not need to be stopped when the oil pump fails, the failed oil pump can be maintained under the condition that the operation of the system is not influenced, the design of the quick-dismantling flange and the maintenance observation window simplifies the maintenance flow, the stop time is shortened, and the anti-interference capability and the stability of the system are improved through the configuration of the one-way valve, the pressure sensor and the flow regulating valve. Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; fig. 2 is a schematic view of a partial structure of the present utility model. The reference numerals in the figure indicate that 1, a fluid coupler, 2, a main oil pump, 3, a standby oil pump, 4, an ingress pipe, 5, a handling pipe, 6, a switching valve and 7, and a base. Detailed Description Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elem