Flushing device for front pipeline and rear pipeline of hydraulic valve stand

Abstract

The utility model belongs to the technical field of hydraulic valve stand front and rear pipeline flushing, and particularly relates to a hydraulic valve stand front and rear pipeline flushing device which comprises a hydraulic valve, connecting pipelines are fixedly installed on the left side and the right side of the hydraulic valve, a water return prevention frame is arranged on the right side of the hydraulic valve, and an installation pipe is arranged on the rear side of the water return prevention frame. A first connecting flange is fixedly installed on the outer side of the water return preventing frame, a connecting pipeline on one side of a hydraulic valve is connected with a first pipeline above the water return preventing frame through the arranged flushing assembly, and the first pipeline and the connecting pipeline are tightly connected through cooperation of a third connecting flange; according to the hydraulic valve, the connecting pipeline on the other side of the hydraulic valve is directly connected with the oil liquid discharging pipeline, oil liquid in the hydraulic valve is not prone to being discharged from the second pipeline through cooperation of the spring and the piston, and therefore a worker does not need to control a plurality of valves when connecting a plurality of pipelines, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of front and rear pipeline flushing of a hydraulic valve platform, in particular to a front and rear pipeline flushing device of a hydraulic valve platform. Background Art

[0002] In the metallurgical industry, hydraulic systems are widely used, and the cleanliness of the oil in the system pipelines directly affects the normal operation of the hydraulic system. Therefore, before the hydraulic system operates normally, it is necessary to disconnect the hydraulic valve station and actuators (hydraulic cylinders or hydraulic motors) and use a separate flushing oil station to flush the pipelines. At present, steel pipes and joints and other pipe fittings are generally used to weld temporary pipelines to flush the pipelines before and after the valve station; due to the large number of valve stations, each valve station needs to be welded to make a specific temporary pipeline, and new pollution will be introduced, which will prolong the flushing time; in addition, the temporary pipeline not only requires a lot of man-hours and materials to make, but also becomes scrapped after use and cannot be reused;

[0003] The announcement number CN 112452961 B discloses a hydraulic valve station front and rear pipeline flushing device, including a first flushing pipe and a second flushing pipe, which are connected by a flushing control valve and are both provided with multiple quick connectors, at least some of which are connected with a transfer pipe, which is used to connect with the hydraulic valve station outlet branch pipe. The first flushing pipe and the second flushing pipe are connected to the valve station inlet P pipe and the oil return port T pipe respectively, and the valve station inlet main pipeline can be cleaned by opening the flushing control valve; further, each valve station outlet A pipe is connected to the first flushing pipe through the transfer pipe;

[0004] When it is in use, when both ends of the pipeline are connected to the flushing pipeline, the oil inside the hydraulic system will flow out from the flushing pipelines on both sides, so that control valves need to be installed inside both ends of the pipeline to allow the flushing pipe on one side to enter the flushing water flow, and the flushing pipe on the other side can drain the water flow. During the flushing process, the device needs to operate multiple control valves, resulting in low working efficiency. Therefore, we proposed a hydraulic valve table front and rear pipeline flushing device. Utility Model Content

[0005] The utility model aims to provide a hydraulic valve platform front and rear pipeline flushing device to solve the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A front and rear pipeline flushing device for a hydraulic valve station comprises a hydraulic valve, connecting pipelines are fixedly installed on the left and right sides of the hydraulic valve, an anti-backwater frame is arranged on the right side of the hydraulic valve, a mounting pipe is arranged on the rear side of the anti-backwater frame, a first connecting flange is fixedly installed on the outer side of the anti-backwater frame, a second connecting flange is fixedly installed on the outer side of the mounting pipe, fixing bolts are threadedly installed on the four corners of the inner sides of the first and second connecting flanges, a spring is fixedly installed on the inner wall of the rear side of the mounting pipe, a piston is installed at the outer height of one end of the spring; a flushing assembly, the flushing assembly is installed on the connecting pipeline and the anti-backwater frame; a connecting assembly, the connecting assembly is installed on the anti-backwater frame.

[0008] As a further improvement of the above solution, the flushing assembly includes a first pipe and a third connecting flange, the first pipe is fixedly installed on the left side of the outer side of the anti-backwater frame, and the third connecting flange is fixedly installed on the outer sides of the first pipe and the connecting pipeline respectively.

[0009] As a further improvement of the above scheme, the connecting assembly includes a second pipe, a flushing pipe and a fourth connecting flange, the second pipe is fixedly installed in front of the anti-backwater frame, the flushing pipe is arranged on the inner side of the second pipe, and the fourth connecting flange is respectively fixedly installed on the outer sides of the second pipe and the flushing pipe.

[0010] As a further improvement of the above solution, threaded holes are provided at four corners of one side of the first connecting flange, the second connecting flange, the third connecting flange and the fourth connecting flange, and fixing bolts are installed on the inner threads of the threaded holes.

[0011] As a further improvement of the above solution, a through hole is opened on the rear side of the anti-backwater frame, the outer diameter of the mounting pipe is the same as the inner diameter of the through hole, and the inner diameter of the spring is smaller than the inner diameter of the through hole.

[0012] As a further improvement of the above solution, the piston is made of rubber material, and the first pipeline can be blocked when the piston abuts against the second pipeline.

[0013] As a further improvement of the above solution, the minimum outer diameter of the flushing pipe is the same as the inner diameter of the second pipe, and the maximum outer diameter of the flushing pipe is the same as the outer diameter of the second pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model is a front and rear pipeline flushing device of a hydraulic valve station. Through the provided flushing assembly, a connecting pipeline on one side of the hydraulic valve is connected to a first pipeline above the anti-backwater frame. Through the cooperation of the third connecting flange, the first pipeline and the connecting pipeline are connected more tightly, so that the connecting pipeline on the other side of the hydraulic valve is directly connected to the oil discharge pipeline. Through the cooperation of the spring and the piston, the oil inside the hydraulic valve is not easily discharged from the second pipeline, so that the staff does not need to control multiple valves when connecting multiple pipelines, so that the work efficiency is higher;

[0016] (2) The utility model is a hydraulic valve table front and rear pipeline flushing device, which, through the provided connection assembly, tightly connects the flushing pipeline with the second pipeline through the fourth connection flange, so that the piston of the flushing pipeline slides through the pressure of the water flow, so that the piston does not block the first pipeline, so that the water flow can flush the hydraulic valve through the water pressure, and the oil and sewage are discharged from the oil discharge pipeline on the other side, making the cleaning of the device more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a front and rear pipeline flushing device of a hydraulic valve station proposed by the utility model;

[0019] Figure 2 It is a partial three-dimensional structural schematic diagram of a front and rear pipeline flushing device of a hydraulic valve station proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a hydraulic valve station front and rear pipeline flushing device proposed by the utility model.

[0021] In the figure: 1. hydraulic valve; 2. connecting pipeline; 3. anti-backwater frame; 4. mounting pipe; 5. first connecting flange; 6. second connecting flange; 7. fixing bolt; 8. spring; 9. piston; 10. first pipeline; 11. third connecting flange; 12. second pipeline; 13. flushing pipeline; 14. fourth connecting flange. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] refer to Figure 1-3 A front and rear pipeline flushing device of a hydraulic valve station comprises a hydraulic valve 1, connecting pipelines 2 are fixedly installed on the left and right sides of the hydraulic valve 1, a backwater prevention frame 3 is arranged on the right side of the hydraulic valve 1, a mounting pipe 4 is arranged on the rear side of the backwater prevention frame 3, a first connecting flange 5 is fixedly installed on the outer side of the backwater prevention frame 3, a second connecting flange 6 is fixedly installed on the outer side of the mounting pipe 4, fixing bolts 7 are threadedly installed on the four corners of the inner sides of the first connecting flange 5 and the second connecting flange 6, a spring 8 is fixedly installed on the inner wall of the rear side of the mounting pipe 4, and a piston 9 is installed at the outer side height of one end of the spring 8; a flushing component, the The flushing component is installed on the connecting pipeline 2 and the anti-backwater frame 3; the connecting component is installed on the anti-backwater frame 3; the flushing component includes a first pipe 10 and a third connecting flange 11, the first pipe 10 is fixedly installed on the left side of the outer side of the anti-backwater frame 3, and the third connecting flange 11 is fixedly installed on the outer sides of the first pipe 10 and the connecting pipeline 2 respectively, so that when flushing is not performed, the oil inside the hydraulic valve 1 can be sealed and blocked by the piston 9, so that the oil can only be discharged from the connecting pipeline 2 on the other side of the hydraulic valve 1, so that the device can be directly connected to the pipeline for flushing during flushing, so as to improve work efficiency.

[0024] The connecting assembly includes a second pipe 12, a flushing pipe 13 and a fourth connecting flange 14. The second pipe 12 is fixedly installed in front of the anti-backwater frame 3, the flushing pipe 13 is arranged on the inner side of the second pipe 12, and the fourth connecting flange 14 is fixedly installed on the outer sides of the second pipe 12 and the flushing pipe 13, respectively, so that the flushing pipe 13 and the second pipe 12 can be connected through the fourth connecting flange 14, so that the water flow can move the piston 9 through the water pressure, and the water flow can enter the inner side of the hydraulic valve 1 for cleaning through the water pressure; threaded holes are opened at the four corners of one side of the first connecting flange 5, the second connecting flange 6, the third connecting flange 11 and the fourth connecting flange 14, and the inner side of the threaded hole is threadedly installed with fixing bolts 7, so that the device is more convenient and quick to connect, and multiple pipes are connected more tightly and not easy to leak.

[0025] A through hole is provided at the rear side of the anti-backwater frame 3 , the outer diameter of the mounting pipe 4 is the same as the inner diameter of the through hole, and the inner diameter of the spring 8 is smaller than the inner diameter of the through hole.

[0026] The piston 9 is made of rubber. When the piston 9 abuts against the second pipe 12, the first pipe 10 can be blocked, so that the sealing effect of the piston 9 is better, and the piston 9 can block the first pipe 10, so that the oil can only be discharged from the connecting pipe 2 on the other side of the hydraulic valve 1; the minimum outer diameter of the flushing pipe 13 is the same as the inner diameter of the second pipe 12, and the maximum outer diameter of the flushing pipe 13 is the same as the outer diameter of the second pipe 12, so that the second pipe 12 and the flushing pipe 13 are connected more tightly, so that the water is not easy to leak.

[0027] The implementation principle of one of the embodiments of the present application is as follows: connecting the connecting pipe 2 on one side of the hydraulic valve 1 with the first pipe 10 above the anti-backwater frame 3, and through the cooperation of the third connecting flange 11, the first pipe 10 and the connecting pipe 2 are connected more tightly, so that the connecting pipe 2 on the other side of the hydraulic valve 1 is directly connected to the oil discharge pipe, and through the cooperation of the spring 8 and the piston 9, the oil inside the hydraulic valve 1 is not easily discharged from the second pipe 12, so that the staff does not need to control multiple valves when connecting multiple pipes, so that the work efficiency is higher; the flushing pipe 13 is tightly connected to the second pipe 12 through the fourth connecting flange 14, so that the flushing pipe 13 causes the piston 9 to slide through the pressure of the water flow, so that the piston 9 does not block the first pipe 10, so that the water flow can flush the hydraulic valve 1 through the water pressure, so that the oil and sewage are discharged from the oil discharge pipe on the other side, so that the device can be cleaned more conveniently and quickly.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above is a detailed introduction to a hydraulic valve table front and rear pipeline flushing device provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A hydraulic valve station front and rear pipeline flushing device, characterized in that: include: A hydraulic valve (1), wherein connecting pipelines (2) are fixedly installed on the left and right sides of the hydraulic valve (1), an anti-backwater frame (3) is arranged on the right side of the hydraulic valve (1), a mounting pipe (4) is arranged on the rear side of the anti-backwater frame (3), a first connecting flange (5) is fixedly installed on the outer side of the anti-backwater frame (3), a second connecting flange (6) is fixedly installed on the outer side of the mounting pipe (4), fixing bolts (7) are threadedly installed on the four corners of the inner sides of the first connecting flange (5) and the second connecting flange (6), a spring (8) is fixedly installed on the inner wall of the rear side of the mounting pipe (4), and a piston (9) is installed at the outer side height of one end of the spring (8); A flushing assembly, wherein the flushing assembly is installed on the connecting pipeline (2) and the anti-backflow frame (3); A connection assembly is installed on the anti-backwater frame (3).

2. A hydraulic valve station front and rear pipeline flushing device according to claim 1, characterized in that: The flushing assembly comprises a first pipe (10) and a third connecting flange (11), wherein the first pipe (10) is fixedly mounted on the left side of the outer side of the anti-backwater frame (3), and the third connecting flange (11) is fixedly mounted on the outer sides of the first pipe (10) and the connecting pipeline (2), respectively.

3. A hydraulic valve station front and rear pipeline flushing device according to claim 1, characterized in that: The connection assembly comprises a second pipe (12), a flushing pipe (13) and a fourth connection flange (14); the second pipe (12) is fixedly mounted in front of the anti-backwater frame (3); the flushing pipe (13) is arranged on the inner side of the second pipe (12); and the fourth connection flange (14) is fixedly mounted on the outer sides of the second pipe (12) and the flushing pipe (13), respectively.

4. A hydraulic valve station front and rear pipeline flushing device according to claim 1, characterized in that: The first connecting flange (5), the second connecting flange (6), the third connecting flange (11) and the fourth connecting flange (14) are provided with threaded holes at four corners on one side, and fixing bolts (7) are threadedly installed inside the threaded holes.

5. A hydraulic valve station front and rear pipeline flushing device according to claim 1, characterized in that: A through hole is provided on the rear side of the anti-backwater frame (3); the outer diameter of the mounting pipe (4) is the same as the inner diameter of the through hole; and the inner diameter of the spring (8) is smaller than the inner diameter of the through hole.

6. A hydraulic valve station front and rear pipeline flushing device according to claim 1, characterized in that: The piston (9) is made of rubber material, and when the piston (9) abuts against the second pipe (12), the first pipe (10) can be blocked.

7. A hydraulic valve station front and rear pipeline flushing device according to claim 3, characterized in that: The minimum outer diameter of the flushing pipe (13) is the same as the inner diameter of the second pipe (12), and the maximum outer diameter of the flushing pipe (13) is the same as the outer diameter of the second pipe (12).

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