Exhaust valve oil system leak detection device

Abstract

The utility model discloses a leakage detection device for an exhaust valve lubricating oil system, comprising a hand pressure pump and a leakage detection main body, wherein the leakage detection main body comprises a first pipeline, a second pipeline and a third pipeline which are sequentially detachably connected, a first connector is provided at the outer end of the first pipeline, a second connector is provided at the outer end of the third pipeline, the first pipeline is connected to the lubricating oil inlet end of the exhaust valve through the first connector, and the third pipeline is connected to the hand pressure pump through the second connector. The utility model has a simple structure, and can verify whether the lubricating oil system has oil leakage when the exhaust valve is not installed on the engine. It is easy to operate and use, and is particularly suitable for testing whether the lubricating oil system of the LISK exhaust valve has oil leakage.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas valve oil leakage detection, and in particular relates to a waste gas valve lubricating oil system leakage detection device. Background Art

[0002] The exhaust valve, also known as the oil-gas separator and pressure control valve, is installed between the compressor outlet and the condenser inlet to separate the oil and gas, improving the heat transfer effect in the condenser and evaporator. The working principle of the exhaust valve: After the high-pressure gas (gaseous working fluid and lubricating oil) from the compressor enters the exhaust valve, the guide vane entering the exhaust valve flows along the guide vane in a spiral shape, and the lubricating oil is separated from the working fluid gas by centrifugal force and gravity, and flows down along the inner wall of the cylinder. The working fluid gas is led out of the exhaust valve through the central pipe through the multi-space baffle; the separated lubricating oil is concentrated in the lower part of the oil separator, which can be discharged regularly or the float valve can be used to automatically return the lubricating oil to the crankcase of the compressor. The lubricating oil system refers to the general term for the equipment, pipelines and accessories that supply the required lubricating oil to the mechanical equipment that needs to be lubricated and cooled.

[0003] When the exhaust valve is installed on the engine and is running, if oil leakage is found, it is often necessary to disassemble and assemble it repeatedly, causing too much additional manpower loss. Therefore, how to verify whether there is oil leakage in the exhaust valve lubricating oil system is still a difficult problem. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a leakage detection device for an exhaust valve lubricating oil system to solve the deficiencies in the prior art.

[0005] In order to achieve the above object, the utility model is implemented by the following technical solutions:

[0006] Provided is a waste gas valve lubricating oil system leakage detection device, comprising a hand pressure pump and a leakage detection main body, the leakage detection main body comprising a first pipeline, a second pipeline and a third pipeline which are detachably connected in sequence, a first connector is provided at the outer end of the first pipeline, a second connector is provided at the outer end of the third pipeline, the first pipeline is connected to the lubricating oil inlet end of the waste gas valve via the first connector, and the third pipeline is connected to the hand pressure pump via the second connector.

[0007] For example, in the exhaust valve lubricating oil system leak detection device, the first pipeline is a relatively thick and hard pipeline, and the second pipeline is a relatively thin and hard pipeline. The first pipeline and the second pipeline are connected by a first nut, a pipe joint, and a second nut.

[0008] For example, in the exhaust valve lubricating oil system leakage detection device, the third pipeline is a hose, and the second pipeline and the third pipeline are connected by a metal band-assisted interference fit.

[0009] As in the exhaust valve lubricating oil system leakage detection device, the second pipeline has a bending portion.

[0010] For example, in the exhaust valve lubricating oil system leakage detection device, the first connector is a third nut.

[0011] The beneficial effects of the technical solution of the utility model are:

[0012] The structure is simple. When the exhaust valve is not installed on the engine, it can verify whether there is oil leakage in the lubricating oil system. It is easy to operate and use, and is especially suitable for testing whether there is oil leakage in the LISK exhaust valve lubricating oil system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of the leak detection main body of the preferred embodiment of the utility model;

[0015] In the figure: 1. first pipeline; 2. second pipeline; 3. third pipeline; 4. first connector; 5. second connector; 6. first nut; 7. pipe joint; 8. second nut; 9. metal strap. DETAILED DESCRIPTION

[0016] The terms "utility model" and "the present utility model" used in this specification are intended to refer broadly to all subject matter of this specification and any patent claims below. Statements containing these terms should not be understood to limit the subject matter described herein or to limit the meaning or scope of any patent claim below. In addition, this specification does not attempt to describe or limit the subject matter covered by any claim of any specific component, paragraph, statement or figure of this application. The subject matter should be understood with reference to the entire specification, all drawings and any claims below. The present utility model may have other embodiments and be practiced or implemented in other ways. Moreover, it should be understood that the wording and terminology used herein are for illustrative purposes and should not be considered as limiting.

[0017] The details of the present invention will now be discussed with reference to the accompanying drawings which illustrate the present invention by way of example only. In the accompanying drawings, similar features or components may be marked with the same reference numerals.

[0018] The use of "including", "having" and "comprising" and variations thereof herein is meant to include the items listed thereafter and their equivalents and additional items. Although reference may be made to directions such as above, below, upward, downward, backward, bottom, top, front, back, etc. in describing the drawings, for convenience, reference is made relative to the drawings. These directions are not intended to literally accept or limit the present invention in any form. In addition, terms such as "first", "second", "third", etc. are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0019] The utility model exhaust valve lubricating oil system leakage detection device comprises a hand pressure pump and a leakage detection main body, see Figure 1 As shown, the leak detection main body includes a first pipeline 1, a second pipeline 2 and a third pipeline 3 which are detachably connected in sequence. The outer end of the first pipeline 1 is provided with a first connector 4, and the outer end of the third pipeline 3 is provided with a second connector 5. The first pipeline 1 is connected to the lubricating oil inlet end of the exhaust valve through the first connector 4, and the third pipeline 3 is connected to the hand pump through the second connector 5.

[0020] The first pipeline 1 is a relatively thick and hard pipeline with a length of 5-8 cm, and the second pipeline 2 is a relatively thin and hard pipeline with a length of 8-15 cm. The outer diameter of the first pipeline 1 is about 2-3 times the outer diameter of the second pipeline 2. During the test, the pressure position of the main body is mainly concentrated in the first pipeline 1. The first pipeline 1 and the second pipeline 2 are connected by the first nut 6, the pipe joint 7 and the second nut 8. The first connector 4 is the third nut, and the second connector 5 is a quick connector. The ends of the first pipeline 1 and the second pipeline 2 are both provided with external threads that match the corresponding nuts.

[0021] The third pipeline 3 is a hose, specifically a transparent hose, with a length of 5-8 cm. The second pipeline 2 and the third pipeline 3 are connected by an interference fit assisted by a metal strap 9. The metal strap 9 is a metal strap with good ductility, which cooperates with the interference connection to achieve better sealing.

[0022] The second pipeline 2 has a bending portion, which is convenient for testing in designated occasions, and the bending angle is 30°-45°.

[0023] When in use, first install the bulkhead to the lubricating oil outlet of the exhaust valve, connect it to the lubricating oil inlet of the exhaust valve through the third nut, connect the hand pump hose to the quick connector, and the leak detection supply pressure is about 40psi. Use the hand pump, and when the pressure reaches 40psi, turn off the hand pump. Observe the change in the hand pump pressure reading for 5 to 10 seconds. If the pressure reading remains at 40psi, it is a qualified product; if the pressure reading drops below 30psi instantly, it is a defective product. If the exhaust valve maintains pressure, release the hand pump pressure and disconnect the third nut.

[0024] The utility model has a simple structure and can verify whether there is oil leakage in the lubricating oil system when the exhaust valve is not installed on the engine. It is easy to operate and use, and is particularly suitable for testing whether there is oil leakage in the lubricating oil system of a LISK exhaust valve.

[0025] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A leak detection device for an exhaust valve lubricating oil system, characterized in that: It includes a hand pump and a leak detection main body, the leak detection main body includes a first pipeline, a second pipeline and a third pipeline which are detachably connected in sequence, the outer end of the first pipeline is provided with a first connector, the outer end of the third pipeline is provided with a second connector, the first pipeline is connected to the lubricating oil inlet end of the exhaust valve through the first connector, and the third pipeline is connected to the hand pump through the second connector.

2. The exhaust valve lubricating oil system leakage detection device as claimed in claim 1, characterized in that: The first pipeline is a relatively thick and hard pipeline, and the second pipeline is a relatively thin and hard pipeline. The first pipeline and the second pipeline are connected by a first nut, a pipe joint, and a second nut.

3. The exhaust valve lubricating oil system leakage detection device as claimed in claim 1, characterized in that: The third pipeline is a hose, and the second pipeline and the third pipeline are connected by a metal band-assisted interference fit.

4. The exhaust valve lubricating oil system leakage detection device as claimed in claim 1, 2 or 3, characterized in that: The second pipeline has a bent portion.

5. The exhaust valve lubricating oil system leakage detection device as claimed in claim 1, characterized in that: The first connecting head is a third nut.

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