CN210531257U

CN210531257U - Pressure protection device applied to oil tank of high-pressure oil station

Info

Publication number: CN210531257U
Application number: CN201920613014.9U
Authority: CN
Inventors: 张炜; 刘瑞萍
Original assignee: Xi'an Dongfang Energy Engineering Co Ltd
Current assignee: Xi'an Dongfang Energy Engineering Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-05-15
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a be applied to pressure protection device of high-pressure oil station oil tank, by the respirator, safety vent valve, respirator pressure difference monitoring devices and transition connection pipe are constituteed, respirator pressure difference monitoring devices, respirator and safety vent valve are parallelly connected on the oil tank through transition connection pipe, respirator pressure difference monitoring devices is used for monitoring whether the respirator became invalid, change for the respirator and provide data, safety vent valve provides corresponding large-traffic passageway according to the needs of different oil tanks, and adopt the mounting means of the dismouting of being convenient for, the safety vent valve check-up of being convenient for, on the basis that does not change the original structure of high-pressure oil station, the problem that high-pressure oil station breathing channel pressure release is not enough has been solved, pressure real-time supervision has, the pressure protection scope is wide, the pressure release is rapid.

Description

Pressure protection device applied to oil tank of high-pressure oil station

Technical Field

The utility model relates to a pressure protection device especially relates to a be applied to pressure protection device of high-pressure oil station oil tank.

Background

The complete high-pressure oil system mainly comprises a high-pressure oil station, an actuating mechanism, a high-pressure buffer energy storage system, a connecting pipeline and a related control and protection system. The high-pressure oil station is used as the core part of the whole set of system and mainly comprises an oil pump (one is used and one is spare), an oil tank breather, a cooling system and a filtering system. All equipment needing hydraulic oil as a power source needs to be matched with a high-pressure oil station, the high-pressure oil station is an indispensable component, and the safety of the high-pressure oil station has important influence on the operation of the equipment.

The oil tank of traditional design is open container design, non-pressure-bearing member, the non-pressure operation, if the oil tank has the oil return that the malleation can influence the system, if the oil tank has the negative pressure then can produce certain influence to the entry of pump (especially when the oil temperature is lower, oil viscosity is great and mobility is poor), for avoiding the oil tank because the change of oil temperature or liquid level, produce certain negative pressure or malleation, the system need install the respirator, establish inside and outside gas exchange channel, and filter impurity and moisture in the outside air, guarantee the quality of the inside oil of oil tank.

However, in the actual production process, the high-pressure oil tank is subjected to pressure due to blockage of a breather, leakage inside the system, jamming of a check valve at the outlet of the high-pressure oil pump and the like. At present, a high-pressure oil station is matched with a breather only to adjust the pressure in an oil tank, the traditional breather only judges whether a drying agent fails or not through the color of silica gel, and cannot judge whether a filter membrane of throttling particles in the breather fails or not, the field working environment is complex, if the filter membrane fails or the flow is reduced a lot before a dryer, the breathing channel cannot be judged whether to be blocked only through the color of the silica gel of the dryer, so that the breathing channel is blocked due to field management and the non-attention on of the breather of the oil station in the actual use process; even under some special working conditions, especially when the system is in emergency stop, any one of the two high-pressure oil pump outlet check valves is jammed, the energy accumulator of the system can return a large amount of high-pressure oil to the oil tank through the inlet pipe to cause great impact on the oil tank, under severe conditions, the oil tank can bulge, crack, the internal partition board is damaged and the like, the high-pressure oil system is paralyzed, production is stopped, even if the respirator is not out of work, the respirator is inevitable, and huge loss is caused to enterprises.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model relates to a accomplished a pressure protection device who is applied to high-pressure oil station oil tank on the basis that does not change the original structure of high-pressure oil station, solve the not enough problem of high-pressure oil station breathing channel pressure release, have the positive negative pressure monitoring of oil tank, the effect of respirator monitoring of inefficacy, the big flux release of oil tank superpressure, advantages such as pressure protection scope is wide, the pressure release is rapid, safe and reliable, and the installation overhauls the convenience.

The utility model discloses an above-mentioned problem is solved to following technical means:

the pressure protection device applied to the high-pressure oil station oil tank comprises a breather, a safety exhaust valve, a breather pressure difference monitoring device and a transition connecting pipe, wherein the breather pressure difference monitoring device, the breather and the safety exhaust valve are connected onto the oil tank in parallel through the transition connecting pipe.

Further, the transition connecting pipe is detachably connected with the safety exhaust valve and the respirator differential pressure monitoring device.

The utility model discloses a be applied to pressure protection device of high-pressure oil station oil tank has following beneficial effect:

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the pressure protection device applied to the oil tank of the high-pressure oil station,

FIG. 2 is a schematic view of the pressure protection device applied to the oil tank of the high-pressure oil station in the installation position of the high-pressure system,

wherein: 1, breathing apparatus; 2-safety exhaust valve; 3-respirator differential pressure monitoring devices; 4-transition connecting pipe.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the pressure protection device applied to the oil tank of the high-pressure oil station comprises a breather 1, and further comprises a safety exhaust valve 2, a breather pressure difference monitoring device 3 and a transition connecting pipe 4, wherein the breather pressure difference monitoring device 3, the breather 1 and the safety exhaust valve 2 are connected in parallel to the oil tank through the transition connecting pipe 4. The transition connecting pipe 4 is detachably connected with the safety exhaust valve 2 and the respirator differential pressure monitoring device 3.

The safety exhaust valve 2 is made of stainless steel, the take-off pressure is adjustable within 0.2-2.2bar, the applicable take-off pressure can be adjusted according to the peak pressure of the oil tank, a corresponding large-flow channel is provided for the oil tank, and the safety exhaust valve is convenient to check by adopting an installation mode which is convenient to disassemble and assemble; the respirator 1 consists of a window and a rotary replacement filter screen, and the respirator 1 has the filtering precision of solid particles of 1 mu m and can prevent the moisture of the granules from entering an oil tank through a transition connecting pipe 4; the respirator differential pressure monitoring device 3 is high in precision, capable of recording peak value and valley value, capable of switching international units and capable of displaying positive and negative pressure numbers, and is multifunctional, capable of monitoring and recording the peak value and valley value in real time, capable of knowing the internal pressure of a high-pressure oil station, used for monitoring whether the respirator 1 is invalid or not, capable of providing data for replacement of the respirator 1 and capable of providing reference basis for judgment of other faults.

In the actual production process, high-pressure oil station connects respirator 1 through transition connecting pipe 4 and adjusts the inside and outside atmospheric pressure balance of high-pressure oil station, and impurity and moisture in the filtration outside air, guarantee the quality of the inside oil of oil tank, come real-time supervision respirator 1 to lose efficacy through respirator pressure difference monitoring devices 3, provide data for respirator 1 changes, when respirator 1 blocks up or the internal fault leads to inside pressure acceleration rate too big, safety exhaust valve 2 reachs preset jump value and moves, release oil station internal pressure, when compressed air flows to the mouth of pipe, pressure energy all converts kinetic energy into and protects the oil station and avoid bulging package, fracture etc. normal operating, can set up the time quantum and monitor high-pressure oil station pressure peak valley value, do corresponding adjustment to safety exhaust valve 2, adapt to the production operating mode.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a be applied to pressure protection device of high pressure oil station oil tank, includes respirator (1), its characterized in that: the respirator differential pressure monitoring device (3), the respirator (1) and the safety exhaust valve (2) are connected to an oil tank in parallel through the transition connecting pipe (4).

2. A pressure protection device for a high pressure fuel station tank as claimed in claim 1, wherein: the transition connecting pipe (4) is detachably connected with the safety exhaust valve (2) and the respirator pressure difference monitoring device (3).