Damping device for unloading pipeline

Abstract

The utility model discloses an unloading pipeline damping device which comprises a mounting side pipe arranged in the side wall of an electromagnetic unloading valve body, the outer side of the right end of the mounting side pipe is in threaded connection with a one-way valve, the outer side of the right end of the one-way valve is connected with a mounting flange, and a fixing bolt is arranged at the joint of the mounting flange and the one-way valve; the filter screen is integrally mounted on the outer side of the left end of the mounting flange and located in the one-way valve, and a connecting pipe is mounted on the outer side of the right end of the mounting flange; and the mounting ring is arranged at the outer side end of the connecting pipe. The utility model belongs to the technical field of pipeline unloading, and aims at solving the problems that in the prior art, when an unloading pipeline works, noise is very large, and the pipeline is prone to being damaged. The device has the technical effects that the sudden change of the flow velocity of liquid in the pipeline is reduced, so that the vibration of the pipeline is reduced, the noise of system operation is reduced, air can be filtered, and impurities are reduced to pollute media.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline unloading, in particular to an unloading pipeline shock absorbing device. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The daily working condition of the mining plunger pump is frequent loading and unloading.

[0003] During loading and unloading, the unloading pipeline vibrates obviously due to the intermittent flow of the medium in the pipeline. The pipeline vibration is mainly caused by the release of kinetic energy when the medium in the pipeline suddenly changes from high-speed flow to stillness or from stillness to high-speed flow, which makes the noise particularly loud and easily causes damage to the pipeline. Utility Model Content

[0004] To this end, the utility model provides an unloading pipeline shock absorbing device to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] According to a first aspect of the utility model, the unloading pipeline shock absorbing device comprises:

[0007] An installation side pipe is arranged inside the side wall of the electromagnetic unloading valve body, and a one-way valve is threadedly connected to the outer side of the right end of the installation side pipe, a mounting flange is connected to the outer side of the right end of the one-way valve, and a fixing bolt is arranged at the connection between the mounting flange and the one-way valve;

[0008] The filter screen is integrally mounted on the outer side of the left end of the mounting flange and is located in the one-way valve, and a connecting pipe is installed on the outer side of the right end of the mounting flange;

[0009] The mounting ring is arranged at the outer end of the connecting pipe, and a prefabricated air intake groove is opened at an equal angle through the right inner side of the mounting ring.

[0010] Furthermore, a liquid outlet is provided in the middle of the lower end of the electromagnetic unloading valve body, and an installation cavity for installing a one-way valve is provided inside the right wall of the electromagnetic unloading valve body.

[0011] Furthermore, the filter screen is connected to the one-way valve by plugging, and the filter screen and the connecting pipe are connected.

[0012] Furthermore, the connecting pipe is connected to the mounting ring by means of threads, and the right end of the connecting pipe is open.

[0013] Furthermore, a mounting cover is integrally fixedly mounted on the right end of the mounting ring.

[0014] Furthermore, the installation side pipe and the one-way valve are connected.

[0015] The utility model has the following advantages:

[0016] 1. Through the prefabricated air inlet groove, air can enter the electromagnetic unloading valve body through the prefabricated air inlet groove. The purpose of the air entering can reduce the sudden change of the flow rate of the liquid in the pipeline, thereby reducing the vibration of the pipeline, reducing the noise of the system operation, and significantly increasing the life of the steel structure connecting the pipeline;

[0017] 2. Through the filter screen, the filter screen is fixedly installed inside the right end of the one-way valve through the mounting flange and fixing bolts, so that the filter screen can filter the air and reduce the contamination of the medium by impurities;

[0018] 3. Through the filter screen and the one-way valve, the function of the one-way valve is to prevent the medium from flowing out of the shock absorber to the outside of the pipeline, and allow the air to enter the electromagnetic unloading valve body from the one-way valve, which increases the air intake of the unloading pipeline and filters the air to reduce impurities that contaminate the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front cross-sectional view of an unloading pipeline shock absorbing device provided in some embodiments of the utility model.

[0020] Figure 2 The unloading pipeline shock absorbing device provided in some embodiments of the utility model Figure 1 Enlarged view of point A in the middle.

[0021] In the figure: 1. electromagnetic unloading valve body, 2. liquid outlet, 3. installation side pipe, 4. one-way valve, 5. installation flange, 6. fixing bolts, 7. filter screen, 8. connecting pipe, 9. installation ring, 10. prefabricated air inlet groove, 11. installation cover, 12. installation cavity. DETAILED DESCRIPTION

[0022] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figure 1 to Figure 2As shown, the unloading pipeline shock absorbing device in the embodiment of the first aspect of the utility model comprises: an installation side pipe 3 is arranged inside the side wall of the electromagnetic unloading valve body 1, a liquid outlet 2 is arranged in the middle of the lower end of the electromagnetic unloading valve body 1, and a one-way valve 4 is threadedly connected to the outer side of the right end of the installation side pipe 3, and an installation cavity 12 for installing the one-way valve 4 is opened inside the right wall of the electromagnetic unloading valve body 1. During installation, the one-way valve 4 can be inserted into the installation cavity 12, and the one-way valve 4 is rotated so that the left end of the one-way valve 4 is threadedly connected to the right end of the installation side pipe 3, so as to facilitate the installation of the one-way valve 4. The function of the one-way valve 4 is to prevent the medium from flowing out of the shock absorbing device to the outside of the pipeline, and allow air to enter the electromagnetic unloading valve body 1 from the one-way valve 4, and the opening pressure of the one-way valve 4 is small enough to facilitate air entry;

[0025] The right end of the one-way valve 4 is connected to the outside of the mounting flange 5, and the connection between the mounting flange 5 and the one-way valve 4 is provided with a fixing bolt 6. The filter screen 7 is integrally installed on the left end of the mounting flange 5 and is located in the one-way valve 4. The right end of the mounting flange 5 is provided with a connecting pipe 8. The filter screen 7 is connected to the one-way valve 4 in a plug-in manner, and the filter screen 7 and the connecting pipe 8 are connected. When installing, the filter screen 7 is first inserted into the right end of the one-way valve 4, and the mounting flange 5 is fixedly installed on the right end of the one-way valve 4 by the fixing bolt 6. At this time, the filter screen 7 can filter the air entering the pipeline to prevent impurities from entering the medium and contaminating the medium;

[0026] The mounting ring 9 is arranged at the outer end of the connecting pipe 8, and a prefabricated air inlet groove 10 is opened at an equal angle inside the right side of the mounting ring 9. The right end of the mounting ring 9 is integrally fixedly installed with a mounting cover 11. The connecting pipe 8 and the mounting ring 9 are connected in a threaded manner, and the right end of the connecting pipe 8 is open. The mounting cover 11 is held and rotated to the outer side of the connecting pipe 8, so that the mounting ring 9 and the connecting pipe 8 are threadedly connected, thereby facilitating the fixed installation of the mounting ring 9. After the installation is completed, when the medium changes from high-speed flow to stillness, air will enter the pipeline through the prefabricated air inlet groove 10, the connecting pipe 8, the filter screen 7 and the one-way valve 4 in sequence, so that the medium The flow rate is not affected, so there is naturally no kinetic energy released, and naturally there is no vibration. When the medium changes from static to dynamic, due to the large amount of air entering in the previous step, the high-speed medium suddenly entering the pipeline is not blocked, and the air is used for buffering, which will also reduce its vibration, thereby effectively reducing the vibration of the unloading pipeline, reducing the noise of system operation, and significantly increasing the life of the steel structure connecting the pipeline. At the same time, it can reduce the consumption of the unloading pipeline. After application, the damage of the unloading pipeline is significantly reduced. The filter screen 7 inserted into the one-way valve 4 is a specially designed appearance structure combined with the original pump station layout and the electromagnetic unloading valve body 1. It is easy to install and does not affect its original design.

Claims

1. Unloading pipeline shock absorbing device, characterized in that: include: A mounting side pipe (3) is arranged inside the side wall of the electromagnetic unloading valve body (1), and a one-way valve (4) is threadedly connected to the outside of the right end of the mounting side pipe (3), a mounting flange (5) is connected to the outside of the right end of the one-way valve (4), and a fixing bolt (6) is provided at the connection between the mounting flange (5) and the one-way valve (4); A filter screen (7) is integrally mounted on the outer side of the left end of the mounting flange (5) and is located inside the one-way valve (4), and a connecting pipe (8) is mounted on the outer side of the right end of the mounting flange (5); The mounting ring (9) is arranged at the outer end of the connecting pipe (8), and a prefabricated air intake groove (10) is formed through the right inner part of the mounting ring (9) at an equal angle.

2. The unloading pipeline shock absorbing device according to claim 1, characterized in that: A liquid outlet (2) is provided at the middle of the lower end of the electromagnetic unloading valve body (1), and an installation cavity (12) for installing a one-way valve (4) is provided inside the right wall of the electromagnetic unloading valve body (1).

3. The unloading pipeline shock absorbing device according to claim 1, characterized in that: The filter screen (7) is connected to the one-way valve (4) by plugging, and the filter screen (7) and the connecting pipe (8) are connected.

4. The unloading pipeline shock absorbing device according to claim 3, characterized in that: The connecting pipe (8) is connected to the mounting ring (9) by means of threads, and the right end of the connecting pipe (8) is open.

5. The unloading pipeline shock absorbing device according to claim 4, characterized in that: A mounting cover (11) is integrally fixedly mounted on the right end of the mounting ring (9).

6. The unloading pipeline shock absorbing device according to claim 1, characterized in that: The installation side pipe (3) and the one-way valve (4) are connected.

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