CN219911382U

CN219911382U - Oil return device of cup valve hydraulic station

Info

Publication number: CN219911382U
Application number: CN202320912419.9U
Authority: CN
Inventors: 周俊俊; 顾海良; 陈亮
Original assignee: Zenith Steel Group Nantong Co Ltd
Current assignee: Zenith Steel Group Nantong Co Ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-10-27
Anticipated expiration: 2033-04-21

Abstract

The utility model discloses an oil return device of a cup valve hydraulic station, which comprises a filter box, an oil tank and a filter, wherein an oil inlet pipe is communicated with the filter box, an oil inlet is arranged above the oil tank, the oil inlet penetrates through the bottom of the filter box, the filter is arranged inside the filter box, the bottom of the filter box is fixedly welded and arranged above the oil inlet through a plurality of groups of fixing frames, a mounting opening is formed above the filter box, a quick-release mounting head is arranged on the mounting opening and is detachably connected with the top of the filter, a pressure control groove is formed at the outer side of the oil inlet at the bottom of the filter box, a sliding sealing block is slidably arranged in the pressure control groove through a pressure control component, and a pressure relief opening is formed at the bottom of the uppermost stroke corresponding to the sliding sealing block in the oil inlet. The utility model has the advantages of realizing smooth oil return of the system, being convenient for installation and cleaning of the filter element, realizing pressure relief under the condition of overlarge pressure and avoiding accidents.

Description

Oil return device of cup valve hydraulic station

Technical Field

The utility model relates to the technical field of hydraulic systems, in particular to an oil return device of a cup valve hydraulic station.

Background

The gas switching station mainly comprises a hydraulic recovery cup valve and a diffusing cup valve. The switching station is used for recovering CO, and when the converter flue gas meets the recovery requirement, the recovery cup valve is opened and the diffusing cup valve is closed through the hydraulic station for switching.

The hydraulic system mainly comprises: the high-pressure main pump, the pump source control valve, the servo control valve, the electromagnetic valve, the energy accumulator, the electronic auxiliary, the oil tank, the valve table and the like of the hydraulic system are formed: the oil tank and the piping in the station are made of 304 stainless steel. The in-station piping means connecting pipelines among the oil tank device, the main pump device, the circulating filtration cooling device and the energy accumulator group.

Wherein, the circulating pump and the high-pressure pump are two sets of pump sets, a group of filters are arranged on the circulating pipeline, and a group of filters are also arranged on the oil inlet and return pipelines, and the total number of the two sets is three. The impurities of the whole oil way system are blocked, and the smoothness of an oil way is ensured.

The drive control of the hydraulic device provides two modes of operation, namely a normal slow switching mode and a fast switching mode for accident situations. The fast mode brings the system back to a safe state in a minimum time, i.e. the gas recovery is interrupted and let out via the let-off cup valve. If a complete power failure occurs, the switching station is returned to the safe state by the dead load of the accumulator and the cup valve disk.

At present, the pressure difference of an oil return filter element of a cup valve hydraulic station is high to give an alarm since production, so that the oil return of the whole system is not smooth, and the action of the cup valve is influenced.

Disclosure of Invention

The utility model aims to provide an oil return device of a cup valve hydraulic station, which realizes smooth system oil return, is convenient to install and clean a filter element, realizes pressure relief under the condition of overlarge pressure, and avoids accidents.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a cup valve hydraulic pressure station oil return device, its characterized in that, including rose box, oil tank and filter, the intercommunication has the oil feed pipe on the rose box, the oil tank top is provided with the oil inlet, the oil inlet runs through the rose box bottom, the filter is installed in the rose box inside, and the rose box bottom passes through multiunit mount fixed welding and installs in the oil inlet top, the installing port has been seted up to the rose box top, be provided with quick detach installation head on the installing port, quick detach installation head can dismantle with the filter top and be connected, the rose box bottom is provided with the pressure control groove in the oil inlet outside, there is a sliding seal piece through pressure control subassembly slidable mounting in the pressure control groove, the pressure release mouth has been seted up in the top stroke bottom that corresponds sliding seal piece to the oil inlet.

Preferably, the filter comprises an upper mounting frame, a lower mounting frame and a large-flow filter element, wherein the upper mounting frame and the lower mounting frame are respectively and fixedly arranged at the upper end and the lower end of the large-flow filter element.

Preferably, the quick-release mounting head comprises a spiral cover and a buffer assembly, the lower part of the spiral cover is rotationally connected with the buffer assembly, the buffer assembly comprises an upper mounting seat and a lower mounting seat, the lower mounting seat is slidably arranged in the upper mounting seat, and a buffer spring is arranged between the lower mounting seat and the upper mounting seat.

Preferably, the connection part of the upper mounting frame and the lower mounting seat is provided with a connecting flange, and the connecting flanges are in sealing connection through flange hoops.

Preferably, the bottom of the lower mounting frame is provided with a sealing groove, the oil inlet is provided with sealing bulges corresponding to the sealing groove in a matching way, sealing strips are arranged on the inner side and the two ends of the sealing groove, and the sealing bulges are clamped in the sealing groove in a matching way.

Preferably, a liquid level meter is arranged in the oil tank.

Preferably, a sealing ring is arranged between the bottom of the pressure control groove and the outer wall of the oil inlet through bolts.

Preferably, the pressure control assembly comprises a plurality of groups of slide bars and pressure springs, wherein the slide bars are arranged in a central symmetry manner, the bottoms of the slide bars are correspondingly and fixedly installed with the fixing frame, the pressure springs are sleeved below the slide bars, the sliding sealing blocks are sleeved above the slide bars, and the bottoms of the sliding sealing blocks are in contact with the pressure springs.

Preferably, the pressure control groove and the oil inlet are both provided with limiting protrusions above the sliding sealing block.

In summary, the utility model has the following beneficial effects:

according to the utility model, the problems of unsmooth oil path are solved by increasing the filter area and the flow of the oil return filter element and avoiding the increase of labor cost caused by frequent replacement of the oil return filter element.

According to the utility model, by adding the pressure control groove and the sliding sealing block, the bypass of an oil way is realized under the condition of overlarge blocking pressure of the filter element, and the damage to the filter element is avoided.

The utility model can quickly and simply replace the filter element, and is more convenient and quick to maintain and clean.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure at B in FIG. 1;

fig. 4 is a schematic structural view at C in fig. 1.

Detailed Description

The following description of the embodiments of the utility model is further illustrated in the accompanying drawings, and the examples are not meant to limit the utility model.

The utility model provides a cup valve hydraulic pressure station oil return device as shown in figures 1 through 4, including rose box 1, oil tank 2 and filter, the intercommunication has oil feed pipe 3 on the rose box 1, the oil tank 2 top is provided with oil inlet 4, oil inlet 4 runs through rose box 1 bottom, the filter is installed in rose box 1 inside, and rose box 1 bottom is through multiunit mount 5 fixed welding installation in oil inlet 4 top, install the mouth 6 has been seted up to rose box 1 top, be provided with the quick detach installation head on the mouth 6, quick detach installation head can dismantle with the filter top and be connected, rose box 1 bottom is provided with pressure-controlled groove 7 in the oil inlet 4 outside, pressure-controlled inslot is provided with a sliding seal piece 8 through pressure-controlled subassembly slidable mounting, pressure release mouth 9 has been seted up in the top stroke bottom that corresponds sliding seal piece 8 to oil inlet 4.

The filter includes mounting bracket 10, lower mounting bracket 11 and high-flow filter core 12, and mounting bracket 10 and lower mounting bracket 11 are fixed mounting respectively in high-flow filter core 12's upper and lower both ends, and high-flow filter core 12 can effectively increase oil return filtration area and filtration flow, avoids taking place the unobstructed condition of oil circuit.

The quick detach installation head includes spiral cover 13 and buffer module, and spiral cover 13 below rotates with buffer module and is connected buffer module and includes mount pad 14 and lower mount pad 15, and lower mount pad 15 slides and sets up in last mount pad 14, is provided with buffer spring 16 between lower mount pad 15 and the last mount pad 14, and buffer module can be effectively with the filter through pressure mounting on oil inlet 4.

The junction of upper mounting bracket 10 top and lower mount pad 15 all is provided with flange 17, through flange staple bolt 18 sealing connection between the flange 17, avoids the return oil to directly get into through the filter top.

The bottom of the lower mounting frame 11 is provided with a sealing groove 19, the oil inlet 4 is provided with sealing bulges 20 corresponding to the sealing groove 19 in a matching way, sealing strips 21 are arranged on the inner side and the two ends of the sealing groove 19, the sealing bulges 20 are clamped in the sealing groove 19 in a matching way, the sealing installation of the bottom of the filter is realized, and oil return is prevented from directly entering through the lower part of the filter.

The inside of the oil tank 2 is provided with a liquid level meter 22 for monitoring the return oil level in the oil tank 2 in real time.

And a sealing ring 23 is arranged between the bottom of the pressure control groove 7 and the outer wall of the oil inlet 4 through bolts, so that the pressure control groove 7 and the pressure control assembly can be overhauled conveniently.

The pressure control assembly comprises a sliding rod 24 and a pressure spring 25, a plurality of groups are arranged in central symmetry on the sliding rod 24, the bottom of the sliding rod 24 is fixedly installed corresponding to the fixing frame 5, the pressure spring 25 is sleeved below the sliding rod 24, the sliding seal block 8 is sleeved above the sliding rod 24, the bottom of the sliding seal block 8 is in contact with the pressure spring 25, under the condition that a filter is blocked, the internal pressure of the filter box 1 is overlarge, the sliding seal block 8 can be pushed to move downwards under the condition that the pressure is greater than a certain pressure until the pressure relief opening 9 is exposed, pressure release is realized, and accidents are avoided.

The pressure control groove 7 and the oil inlet 4 are respectively provided with a limiting protrusion 26 above the sliding sealing block 8, so that the sliding sealing block 8 is subjected to limiting installation, and the pressure relief opening 9 is always plugged at the uppermost stroke of the sliding sealing block 8.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the utility model, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present utility model.

Claims

1. The utility model provides a cup valve hydraulic pressure station oil return device, its characterized in that, including rose box, oil tank and filter, the intercommunication has the oil feed pipe on the rose box, the oil tank top is provided with the oil inlet, the oil inlet runs through the rose box bottom, the filter is installed in the rose box inside, and the rose box bottom passes through multiunit mount fixed welding and installs in the oil inlet top, the installing port has been seted up to the rose box top, be provided with quick detach installation head on the installing port, quick detach installation head can dismantle with the filter top and be connected, the rose box bottom is provided with the pressure control groove in the oil inlet outside, there is a sliding seal piece through pressure control subassembly slidable mounting in the pressure control groove, the pressure release mouth has been seted up in the top stroke bottom that corresponds sliding seal piece to the oil inlet.

2. The cup valve hydraulic station oil return device of claim 1, wherein: the filter comprises an upper mounting frame, a lower mounting frame and a large-flow filter element, wherein the upper mounting frame and the lower mounting frame are respectively and fixedly arranged at the upper end and the lower end of the large-flow filter element.

3. A cup valve hydraulic station oil return apparatus according to claim 2, wherein: the quick detach installation head includes spiral cover and buffer module, spiral cover below and buffer module rotate and connect buffer module includes mount pad and lower mount pad, lower mount pad slides and sets up in last mount pad, be provided with buffer spring down between mount pad and the last mount pad.

4. A cup valve hydraulic station oil return apparatus according to claim 3, wherein: the connecting flange is arranged at the joint of the upper mounting frame and the lower mounting seat, and the connecting flanges are in sealing connection through flange hoops.

5. A cup valve hydraulic station oil return apparatus according to claim 2, wherein: the bottom of the lower mounting frame is provided with a sealing groove, the oil inlet is provided with sealing bulges corresponding to the sealing groove in a matching way, sealing strips are arranged on the inner side and the two ends of the sealing groove, and the sealing bulges are clamped in the sealing groove in a matching way.

6. The cup valve hydraulic station oil return device of claim 1, wherein: the oil tank is internally provided with a liquid level meter.

7. The cup valve hydraulic station oil return device of claim 1, wherein: and a sealing ring is arranged between the bottom of the pressure control groove and the outer wall of the oil inlet through bolts.

8. The cup valve hydraulic station oil return device of claim 1, wherein: the pressure control assembly comprises a plurality of groups of slide bars and pressure springs, wherein the slide bars are arranged in a central symmetry mode, the bottoms of the slide bars are fixedly installed corresponding to the fixing frames, the pressure springs are sleeved below the slide bars, the sliding sealing blocks are sleeved above the slide bars, and the bottoms of the sliding sealing blocks are in contact with the pressure springs.

9. The cup valve hydraulic station oil return apparatus of claim 8, wherein: and limiting protrusions are arranged above the sliding sealing blocks and the pressure control grooves and the oil inlets.