Installation method for marine engine control air pipe and instrument and meter pipe

Abstract

A mounting method for a marine engine control air pipe and an instrument and meter pipe is characterized in that the control air pipe is made of copper, the instrument and meter pipe is made of stainless steel, and the mounting method comprises the steps that the control air pipe and the instrument and meter pipe are clamped and fixed in a specific pipe clamp, and a certain interval is kept between the control air pipe and the instrument and meter pipe; the pipe clamp is fixed on a main engine of the marine engine through the support base; the pipe clamp is formed by oppositely combining two same clamping blocks, the clamping blocks are provided with arc grooves used for containing the control air pipe and the instrument and meter pipe, and intervals exist between the arc grooves. According to the mounting method, the problem that the service life of the pipe fitting is affected by vibration of a main motor vehicle is solved, the workload of dispatching operation is reduced, galvanic corrosion caused after contact of pipe fittings made of different materials is avoided, and the effects of prolonging the service life of the pipe fitting, improving the operation efficiency and guaranteeing the product quality are achieved; the device can be universally applied to the installation of various marine engine control air pipes and instrument and meter pipes.

Description

Technical Field

[0001] The invention relates to the installation of a marine engine, in particular to an installation method for a marine engine control air pipe and an instrument pipe, and belongs to the technical field of marine engine manufacturing. Background Art

[0002] There are many instruments and pneumatic valves on marine engines. Some of the pneumatic valves, such as the main starting valve, turning machine interlocking valve, CBV valve, RSV valve, etc., need to be controlled by control air. The connection from the air source to each valve usually uses a control air pipe, which is generally made of copper and is used to control the transmission of air.

[0003] There are many instruments on the host, some of which are arranged in places that are difficult for personnel to reach. Therefore, instrument pipes are needed to lead out media such as gas, lubricating oil or water, and then set the instruments to a place where personnel can easily observe and operate. The material of the instrument pipe is generally stainless steel.

[0004] The current installation structure is to design the control air pipe and instrument pipe in a unified way according to the path, please refer to Figure 1 All pipelines with similar paths, whether they are control air pipes 2 or instrument pipes 3, are clamped together side by side with pipe clamps 4, and then fixed on the host 1 using a bracket connector 5.

[0005] The shortcomings of the above current installation method are:

[0006] 1. If there are too many operating air pipes and instrument pipes, the pipe clamp needs to be widened accordingly. However, the vibration of the connection between the pipe clamp and the main machine will increase, and because there is no gap between the pipes, long-term operation will lead to the risk of the pipes breaking due to mutual friction.

[0007] 2. When the main engine needs to be split for shipment, since all the pipes are placed side by side with no gap in between, they cannot be separated by pipe joints. Therefore, the pipes need to be bent to create space to connect the pipe joints, which increases the workload and reduces the operating efficiency.

[0008] 3. Since the control air pipe and the instrument pipe are made of different materials, keeping them close together for a long time will cause galvanic corrosion due to high temperature and humidity. Summary of the invention

[0009] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a method for installing a marine engine control air pipe and an instrument pipe to reduce pipeline vibration, avoid galvanic corrosion, and enable direct connection of pipe joints, thereby achieving the effect of extending the service life of pipe fittings, improving operating efficiency, and shortening operating hours.

[0010] The technical solution of the present invention is as follows:

[0011] A method for installing a control air pipe and an instrument pipe for a marine engine, wherein the control air pipe is made of copper and the instrument pipe is made of stainless steel, and the method comprises: clamping the control air pipe and the instrument pipe in a specific pipe clamp and keeping a certain interval between them, and then fixing the pipe clamp on the main engine of the marine engine through a bracket base;

[0012] The pipe clamp is formed by combining two identical clamping blocks, and the clamping blocks are provided with arc grooves for placing the control air pipe and the instrument pipe, and there are intervals between the arc grooves.

[0013] Furthermore, the intervals between the arc grooves are greater than the sum of the radii of adjacent control air pipes or instrument pipes.

[0014] Furthermore, the clamp block is provided with a through hole for inserting a bolt, so as to fix the pipe clamp on the bracket base.

[0015] Furthermore, the number of the arc grooves on the clamping block is 2.

[0016] Furthermore, the radius of the arc groove is determined according to the diameter of the control air pipe or the instrument pipe.

[0017] Furthermore, a plurality of control air pipes and instrument pipes are respectively clamped in a plurality of stacked pipe clamps, and then fixed to the main engine of the marine engine through the bracket base to reduce vibration caused by the operation of the main engine.

[0018] Compared with the prior art, the technical effects achieved by the present invention are as follows:

[0019] 1) The present invention places the control air pipe and the instrument pipe in different arc grooves with a certain interval on the pipe clamp, so that the control air pipe and the instrument pipe maintain a certain distance from each other after installation, thereby avoiding the situation where the pipes are ruptured due to mutual friction caused by the vibration of the main machine operation, and extending the service life of the pipe fittings.

[0020] 2) Since there is a certain distance between the pipe fittings, when the main engine needs to be shipped in sections, the pipe joints can be easily installed directly without additional bending, thereby reducing the construction time of personnel and improving the efficiency of shipping operations.

[0021] 3) The control air pipe and instrument pipe are installed in different arc grooves of the pipe clamp respectively, maintaining a certain distance without contact, thus avoiding galvanic corrosion caused by long-term contact between pipes of different materials.

[0022] In summary, the installation method described in the present invention solves the problem that the vibration of the main motor vehicle affects the life of the pipe fittings, reduces the workload of the shipping operation, avoids the galvanic corrosion caused by the contact of pipe fittings of different materials, and achieves the effect of extending the service life of the pipe fittings, improving operating efficiency and ensuring product quality. It can be generally applied to the installation of various types of marine engine control air pipes and instrument pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the installation of existing control air pipes and instrument pipes.

[0024] Figure 2 This is one of the installation diagrams of the present invention.

[0025] Figure 3 This is the second installation diagram of the present invention.

[0026] In the figure,

[0027] 1—main machine, 2—control air pipe, 3—instrument pipe, 4—pipe clamp, 5—bracket base, 6—pipe joint, 7—bolt, 8—nut. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereby.

[0029] The invention is used for installing a control air pipe and an instrument pipe on a marine engine. The control air pipe is made of copper, and the instrument pipe is made of stainless steel.

[0030] See also Figure 2 The control air pipe 2 and the instrument tube 3 are clamped in a specific pipe clamp 4. The pipe clamp 4 is composed of two identical clamping blocks. Two arc grooves are opened on the clamping block. There is a gap between the arc grooves. The radius of the arc groove is determined according to the diameter of the control air pipe 2 or the instrument tube 3; the control air pipe 2 and the instrument tube 3 are respectively placed in different arc grooves. The gap between the arc grooves is greater than the sum of the radii of adjacent control air pipes 2 or instrument tubes 3. Therefore, pipes of different materials maintain a certain distance from each other.

[0031] The clamp block is provided with a through hole for inserting a bolt 7, and the pipe clamp 4 is fixed to the bracket base 5 by means of the bolt 7 and the nut 8, and the bracket base 5 is further fixed to the main engine 1 of the marine engine by means of the bolt 7 and the nut 8, so that the control air pipe 2 and the instrument pipe 3 are fixed to the main engine 1 by means of the specific pipe clamp 4 and the conventional bracket base 5, and a certain distance is maintained between them.

[0032] If multiple control air pipes 2 and instrument pipes 3 are connected together on the host 1, Figure 3 As shown, several pipe clamps 4 can be stacked up for use, and the length of the bolt 7 is selected according to actual needs.

[0033] Since there are intervals between the arc grooves in the pipe clamp 4, there is enough clearance between the pipes on the same pipe clamp 4, so the pipe joint 6 can be directly installed when the sections are shipped. Figure 2 , without the need for additional bending.

[0034] After a certain X92DF engine uses the method described in the present invention, the problem of vibration of the control air pipe and instrument pipe when the train is running is solved, and the service life of the pipe fittings is increased; the need to bend the pipes at the section during shipment is avoided, and pipe joints can be directly added, reducing working hours; and galvanic corrosion caused by long-term contact between pipes of different materials is avoided.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. The protection scope required by the present invention should also include obvious changes and alternatives to the present invention.

Claims

1. A method for installing a control air pipe and an instrument tube for a marine engine, wherein the control air pipe is made of copper and the instrument tube is made of stainless steel, characterized in that: The installation method comprises: fixing the control air pipe and the instrument pipe in a specific pipe clamp and keeping a certain interval between them, and then fixing the pipe clamp on the main engine of the marine engine through a bracket base; The pipe clamp is formed by combining two identical clamping blocks, and the clamping blocks are provided with arc grooves for placing the control air pipe and the instrument pipe, and there are intervals between the arc grooves.

2. The method for installing the control air pipe and instrument pipe for a marine engine according to claim 1, characterized in that: The intervals between the arc grooves are greater than the sum of the radii of adjacent control air pipes or instrument pipes.

3. The method for installing the control air pipe and instrument pipe for a marine engine according to claim 1, characterized in that: The clamp block is provided with a through hole for inserting a bolt, so as to fix the pipe clamp on the bracket base.

4. The method for installing the control air pipe and instrument pipe for a marine engine according to claim 1, characterized in that: The number of the arc grooves on the clamping block is 2.

5. The method for installing the control air pipe and instrument pipe for a marine engine according to claim 1, characterized in that: The radius of the arc groove is determined according to the diameter of the control air pipe or the instrument pipe.

6. The method for installing the control air pipe and instrument pipe for a marine engine according to claim 1, characterized in that: A plurality of control air pipes and instrument pipes are respectively clamped in a plurality of stacked pipe clamps, and then fixed on the main engine of the marine engine through the support base to reduce the vibration caused by the operation of the main engine.

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