CN219013035U

CN219013035U - Safety integrated valve

Info

Publication number: CN219013035U
Application number: CN202223020444.0U
Authority: CN
Inventors: 曾国友
Original assignee: Dongguan Jiucheng Hydraulic Machinery Co ltd
Current assignee: Dongguan Jiucheng Hydraulic Machinery Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-05-12
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to the technical field of oil way valve blocks, in particular to a safety integrated valve, which comprises an integrated valve body, wherein the integrated valve body comprises a first valve block and a second valve block which are mutually communicated, and a reversing valve which is arranged between the first valve block and the second valve block and is communicated with the first valve block and the second valve block, one sides of the first valve block and the second valve block are provided with safety valves, and one sides of the first valve block and/or the second valve block are provided with pressure relief valves for discharging working mediums. Through the design, the pipeline pressure on two sides of the integrated valve body can be in a safe pressure range, so that pipeline breakage and leakage of working medium are avoided, and the safety of industrial production is improved.

Description

Safety integrated valve

Technical Field

The utility model relates to the technical field of oil way valve blocks, in particular to a safety integrated valve block.

Background

The integrated valve is widely used in the aspects of electric power, petroleum and petrochemical industry, coal chemical industry, aerospace, transportation, urban agriculture, people living and the like. Integrated valves comprising various valve combinations are indispensable accessories in national economy.

In the existing hydraulic multi-way valve of engineering machinery, when the pressure in a pipeline is overlarge by arranging a single safety valve (or overflow valve, hereinafter collectively referred to as installation valve), the pressure exceeds the pressure critical value of the installation valve set in advance, and the safety valve starts to work the working medium of the discharge part, so that the pressure in the pipeline is reduced, the pressure of the pipeline cannot exceed the working pressure, and the safety of equipment and workers is ensured.

The check valve is usually arranged in the pipeline, so that the working medium can flow unidirectionally, the safety valve is arranged at the inflow position of the working medium and is positioned in front of the check valve, the pressure of the pipeline part before the check valve flows in is protected by the safety valve to be in a safe pressure range, however, the pressure at one end flowing out of the check valve is blocked and flows back, heated and flows back or heated and expanded at the front, so that the pressure of the pipeline is overlarge, the pipeline is broken, potential safety hazards exist, the working medium leaks out, the surrounding environment is polluted while the waste is caused, and the trouble is caused for the cleaning of subsequent staff.

Disclosure of Invention

In order to solve the technical defects in the background art, the utility model aims to provide the safety integrated valve, which can enable pipeline pressures at two sides of an integrated valve body to be in a safe pressure range, so that pipeline breakage and working medium leakage are avoided, and the safety of industrial production is improved.

The utility model adopts the following technical scheme:

the utility model provides a safety integrated valve, is including the integrated valve body, the integrated valve body is including first valve piece and the second valve piece that communicate each other, and locate between first valve piece and the second valve piece and with the switching-over valve that first valve piece and second valve piece all communicate, the relief valve is installed to one side of first valve piece and second valve piece, be used for with the exhaust relief valve of working medium is installed to one side of first valve piece and/or second valve piece.

Preferably, the first oil duct is formed in the first valve block, the second oil duct is formed in the position of the second valve block corresponding to the first oil duct, two ends of the reversing valve are respectively inserted into the first oil duct and the second oil duct, so that working medium flows in the first oil duct and the second oil duct, the upper sides of the first valve block and the second valve block are respectively provided with a safety oil duct, one end of the safety valve is inserted into the safety oil duct, the working medium flows from the first oil duct or the second oil duct to the safety oil duct, the working medium is discharged out of the integrated valve, a pressure relief oil duct is formed in the lower side of the first valve block and/or the lower side of the second valve block, one end of the pressure relief valve is inserted into the pressure relief oil duct, the working medium flows from the first oil duct or the second oil duct to the pressure relief oil duct, and the safety oil duct is discharged.

Preferably, the non-output end of the relief valve is sleeved with a return pipe for returning the working medium discharged from the relief valve into the oil tank, and the return pipe is provided with a pressure gauge.

Preferably, a touch switch is arranged on the pressure gauge, and the touch switch is electrically connected with an alarm device.

Preferably, the alarm device is a buzzer alarm.

Preferably, the reversing valve is an electromagnetic reversing valve, the pressure relief valve is an electromagnetic pressure relief valve, the electromagnetic reversing valve is electrically connected with a control board, and the control board is electrically connected with the alarm device and the electromagnetic pressure relief valve.

In summary, the beneficial effects of the utility model are as follows:

according to the utility model, the reversing valve is arranged between the first valve block and the second valve block, the safety valves are arranged on the first valve block and the second valve block, the pressure gauge is arranged on the safety valves, the pressure of working medium overflowed into the oil tank is detected through the pressure gauge, and when the pressure is overlarge, the working medium can be returned into the oil tank, so that the pressure of the working medium in the integrated valve is ensured to be in a safety range.

The foregoing description is only an overview of the technical solution of the present utility model, and may be implemented according to the content of the specification in order to make the technical means of the present utility model more clearly understood, and in order to make the above and other objects, features and advantages of the present utility model more clearly understood, the following specific preferred embodiment is given by way of the following detailed description in conjunction with the accompanying drawings.

Drawings

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

fig. 2 is a cross-sectional view of the overall structure of an embodiment of the present utility model.

Reference numerals in the drawings illustrate: 1. an integrated valve; 11. a first valve block; 12. a second valve block; 2. a reversing valve; 3. a safety valve; 31. a return pipe; 32. a pressure gauge; 4. a pressure release valve; 5. a first oil passage; 6. a second oil passage; 7. the pressure relief oil duct; 8. and a safety oil duct.

Detailed Description

In order that the utility model may be more readily understood, a further description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

It should be noted that, as used herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Unless otherwise indicated, the meaning of "a plurality" is two or more.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

As shown in fig. 1 to 2, a safety integrated valve 1 comprises an integrated valve 1 body, wherein the integrated valve 1 body comprises a first valve block 11 and a second valve block 12 which are mutually communicated, and a reversing valve 2 which is arranged between the first valve block 11 and the second valve block 12 and is communicated with the first valve block 11 and the second valve block 12, one side of the first valve block 11 and one side of the second valve block 12 are provided with a safety valve 3, and one side of the first valve block 11 and/or one side of the second valve block 12 are provided with a pressure release valve 4 for discharging working media. The first valve block 11 is provided with a first oil duct 5, the second valve block 12 is provided with a second oil duct 6 corresponding to the first oil duct 5, two ends of the reversing valve 2 are respectively inserted into the first oil duct 5 and the second oil duct 6, so that working medium flows in the first oil duct 5 and the second oil duct 6, the upper sides of the first valve block 11 and the second valve block 12 are provided with a safety oil duct 8, one end of the safety valve 3 is inserted into the safety oil duct 8, the working medium flows from the first oil duct 5 or the second oil duct 6 to the safety oil duct 8 and is discharged out of the integrated valve 1, the lower side of the first valve block 11 and/or the lower side of the second valve block 12 is provided with a pressure relief oil duct 7, one end of the pressure relief valve 4 is inserted into the pressure relief oil duct 7, and the working medium flows from the first oil duct 5 or the second oil duct 6 to the pressure relief oil duct 7, and is discharged out of the safety oil duct 8.

Specifically, in this embodiment, an oil conduit leading to the oil tank is installed at the oil inlet of the first oil passage 5, and an oil pump is installed on the oil conduit, and the oil pump conveys the working medium in the oil tank to the first oil passage 5, and the working medium works along the first oil passage 5 via the reversing valve 2 along the second oil passage 6 into the subsequent working environment.

Specifically, in this embodiment, the non-output end of the relief valve 3 is sleeved with a return pipe 31, the return pipe 31 is used for returning the working medium discharged from the relief valve 3 into the oil tank, a pressure gauge 32 is installed on the return pipe 31, when the relief valve 3 on the first valve block 11 is opened, the working medium in the first oil duct 5 is split, and the working medium returns into the oil tank from the return pipe 31 on the first valve block 11, so that the pressure in the first oil duct 5 is reduced, the pressure gauge 32 on the first valve block 11 monitors the pressure of the working medium in the return oil tank at any moment, when the returned pressure exceeds the upper limit set by the pressure gauge 32, the pressure gauge 32 is provided with a touch switch, the touch switch is connected with an alarm device, in this embodiment, the alarm device is a buzzer alarm, the attention of an operator is drawn through buzzing sound, the operator is reminded of timely opening the pressure release valve 4 to release the pressure, and the pressure in the first oil duct 5 is rapidly reduced; when the safety valve 3 on the second valve block 12 is opened, the working medium in the second oil duct 6 is split, and flows back into the oil tank from the return pipe 31 on the second valve block 12, so that the pressure in the second oil duct 6 is reduced, the pressure gauge 32 on the second valve block 12 monitors the pressure of the working medium flowing back into the oil tank at any time, when the pressure of the backflow exceeds the set upper limit of the pressure gauge 32, the trigger switch of the pressure gauge 32 works to make a buzzer alarm make a sound, so that an operator is reminded to start the reversing valve 2 and the pressure relief valve 4, and the working medium in the second oil duct 6 flows into the oil tank through the reversing valve 2 so as to relieve the pressure in the oil duct 7, and the pressure in the second oil duct 6 is rapidly reduced.

In other embodiments, the reversing valve 2 is an electromagnetic reversing valve 2, the pressure relief valve 4 is an electromagnetic pressure relief valve 4, the electromagnetic reversing valve 2 is electrically connected with a control board, the control board is electrically connected with the alarm device and the electromagnetic pressure relief valve 4, the control board is electrically connected with the oil pump, the pressure of the pressure gauge 32 on the first valve block 11 is overlarge, and the alarm device on the first valve block 11 sends a signal to the control board to control the oil pump to stop working and enable the electromagnetic pressure relief valve 4 to open for pressure relief; the pressure of the pressure gauge 32 on the second valve block 12 is overlarge, and the alarm device on the second valve block 12 sends a signal to the control panel to enable the electromagnetic directional valve 2 to work, so that working medium in the second oil duct 6 reversely flows to the first oil duct 5, and then the pressure relief oil duct 7 flows back to the oil tank, so that the pressure in the second oil duct 6 rapidly drops, the pressure in the integrated valve 1 can be timely adjusted in a full-automatic mode without manual operation, and the pressure of the working medium in the integrated valve 1 is ensured to be in a safe range, and the safety of the device is improved.

The principle of the embodiment of the application is as follows: the pressure of the working medium discharged by the safety valve is monitored through the upper pressure gauge positioned on the safety valve, so that the pressure relief valve is opened, the working medium is returned into the oil tank, the pressure in each oil duct is rapidly reduced, and the pressure of the working medium in the integrated valve is ensured to be in a safety range.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a safe integrated valve, including integrated valve body, its characterized in that: the integrated valve body comprises a first valve block and a second valve block which are mutually communicated, and a reversing valve which is arranged between the first valve block and the second valve block and is communicated with the first valve block and the second valve block, one sides of the first valve block and the second valve block are provided with safety valves, and one sides of the first valve block and/or the second valve block are provided with pressure relief valves for discharging working media.

2. A safety integrated valve according to claim 1, wherein: the first oil duct is arranged on the first valve block, the second oil duct is arranged at the position of the second valve block corresponding to the first oil duct, two ends of the reversing valve are respectively inserted into the first oil duct and the second oil duct, so that working medium flows into the first oil duct and the second oil duct, the upper sides of the first valve block and the second valve block are respectively provided with a safety oil duct, one end of the safety valve is inserted into the safety oil duct, the working medium flows from the first oil duct or the second oil duct to the safety oil duct, the working medium is discharged out of the integrated valve, a pressure relief oil duct is arranged at the lower side of the first valve block and/or the lower side of the second valve block, one end of the pressure relief valve is inserted into the pressure relief oil duct, the working medium flows from the first oil duct or the second oil duct to the pressure relief oil duct, and the safety oil duct is discharged.

3. A safety integrated valve according to claim 1, wherein: the non-output end of the safety valve is sleeved with a return pipe, the return pipe is used for returning working medium discharged from the safety valve into the oil tank, and a pressure gauge is arranged on the return pipe.

4. A safety integrated valve according to claim 3, wherein: the pressure gauge is provided with a touch switch which is electrically connected with an alarm device.

5. A safety integrated valve according to claim 4, wherein: the alarm device is a buzzer alarm.

6. A safety integrated valve according to claim 4, wherein: the reversing valve is an electromagnetic reversing valve, the pressure relief valve is an electromagnetic pressure relief valve, the electromagnetic reversing valve is electrically connected with a control board, and the control board is electrically connected with the alarm device and the electromagnetic pressure relief valve.