High-temperature-resistant butterfly valve for engine

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a high temperature resistant butterfly valve for an engine, which comprises a butterfly valve main body and a controller, one end of the butterfly valve main body is provided with an air inlet, the other end of the butterfly valve main body is provided with an air outlet, and a fixed pipe is fixed on the butterfly valve main body on the outer side of the air inlet. The end, away from the butterfly valve body, of the fixing pipe is fixedly connected with a detachable filtering screw pipe, the end, away from the fixing pipe, of the filtering screw pipe is fixedly connected with a connecting pipe in a detachable mode, and the end, away from the butterfly valve body, of the air inlet and the end, away from the butterfly valve body, of the connecting pipe are both fixedly provided with fixing flanges. According to the high-temperature-resistant butterfly valve for the engine, fluid can be filtered before entering the butterfly valve, the situation that the butterfly valve is excessively abraded or cannot be closed due to the fact that the fluid carries impurities is avoided, the butterfly valve is also prevented from being blocked, the problem that the water inlet end of an existing high-temperature-resistant butterfly valve for the engine is inconvenient to filter is solved, and the service life of the butterfly valve is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model application relates to butterfly valve technical field, concretely is high temperature -resistant butterfly valve for engine. BACKGROUND

[0002] Butterfly valve is a kind of valve that is opened, closed or adjusted medium flow by disc-shaped opening and closing member (butterfly plate) rotation around valve shaft, can be used to control air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium and the flow of various types of fluid, located in intake manifold, by changing the cross-sectional area of intake passage to control the air amount into engine, adjust the air intake and control exhaust gas recirculation, to adjust the output power of engine.

[0003] Butterfly valve is closed by rotating disc plate to block the valve body when using, need to ensure that the fluid into butterfly valve does not contain impurities, to avoid impurities adhering to the inner wall of valve body to cause butterfly plate to be unable to close completely, or cause abrasion in multiple extrusions, and the existing butterfly valve water inlet end filtering treatment is inconvenient, reduce the service life of butterfly valve. SUMMARY

[0004] In order to solve the problem that the existing high temperature -resistant butterfly valve for engine water inlet end filtering treatment is inconvenient, the utility model provides high temperature -resistant butterfly valve for engine to solve the above -mentioned problem.

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

[0006] High temperature -resistant butterfly valve for engine, including butterfly valve main part and controller, butterfly valve main part one end is provided with inlet, butterfly valve main part other end is provided with outlet, the butterfly valve main part outside the inlet is fixed with fixed pipe, the fixed pipe is fixedly connected with detachable filter screw pipe away from butterfly valve main part one end, the filter screw pipe is detachably fixedly connected with connecting pipe away from fixed pipe one end, the inlet and the connecting pipe away from butterfly valve main part one end are all fixed with fixed flange, the filter screw pipe is fixed with filter screen in.

[0007] Further, the fixed pipe is fixed with sealing gasket plate away from filter screw pipe one end, the outer circle diameter of two sealing gasket plates is equal to the outer circle diameter of filter screw pipe.

[0008] Further, the fixed pipe outer surface is rotatably provided with sealing sleeve, the sealing sleeve is provided with screw groove in cooperation with filter screw pipe and sealing gasket plate outer surface, the length of filter screw pipe and two sealing gasket plates is equal to the length in sealing sleeve.

[0009] Further, the filter screen is inclined downward towards butterfly valve main part end, and the length of the filter screen is less than the length of the filter screw pipe.

[0010] Furthermore, a sealing ring is fixed to the outer side of the sealing gasket on the connecting pipe, and a sealing washer is glued to the inner wall of the sealing ring on the outer ring of the sealing gasket.

[0011] Furthermore, the sealing sleeve has a rotating hole at one end near the butterfly valve body that mates with the fixed pipe. The diameter of the rotating hole is smaller than the diameter of the sealing gasket. A sealing insert is fixed inside the sealing sleeve, and a sealing groove that mates with the sealing insert is formed inside the sealing gasket.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the fluid can be filtered before entering the butterfly valve through the filter structure of the inlet, which avoids the butterfly valve from being worn too much or unable to close due to impurities in the fluid, and also avoids the butterfly valve from being blocked. This solves the problem that the filtration of the inlet end of the existing high-temperature resistant engine butterfly valve is inconvenient, and greatly improves the service life of the butterfly valve.

[0014] 2. In this utility model, the filter screen and filter spiral tube are designed to be detachable. After a certain amount of debris accumulates inside the filter spiral tube, the filter spiral tube can be disassembled and cleaned separately, which improves the convenience of maintenance when using the butterfly valve and also ensures the smooth operation of the butterfly valve. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a butterfly valve according to an embodiment of this application;

[0017] Figure 2 yes Figure 1 The above-view schematic diagram of the three-dimensional structure of the butterfly valve in the embodiment shown;

[0018] Figure 3 yes Figure 1 A schematic cross-sectional view of a partial structure of the butterfly valve in the illustrated embodiment.

[0019] The meanings of the reference numerals in the drawing are as follows: 1, butterfly valve body; 2, controller; 3, air inlet; 4, air outlet; 5, fixed pipe; 6, filter screw pipe; 7, filter screen; 8, connecting pipe; 9, fixed flange; 10, sealing sleeve; 11, sealing sleeve ring; 12, sealing gasket; 13, sealing gasket plate; 14, sealing plug; 15, sealing groove. DETAILED DESCRIPTION

[0020] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0021] Reference Figure 1 , Figure 2 and Figure 3 , the high-temperature-resistant butterfly valve for engine comprises a butterfly valve body 1 and a controller 2, one end of the butterfly valve body 1 is provided with an air inlet 3, the other end of the butterfly valve body 1 is provided with an air outlet 4, a fixed pipe 5 is fixed on the butterfly valve body 1 outside the air inlet 3, a sealing gasket plate 13 is fixed on one end of the fixed pipe 5 close to a filter screw pipe 6, the outer diameters of the two sealing gasket plates 13 are equal to the outer diameter of the filter screw pipe 6, a detachable filter screw pipe 6 is fixedly connected to one end of the fixed pipe 5 away from the butterfly valve body 1, the detachable filter screw pipe 6 is detachably fixedly connected to a connecting pipe 8 at one end away from the fixed pipe 5, the air inlet 3 and the connecting pipe 8 are both fixed with a fixed flange 9 at one end away from the butterfly valve body 1, a filter screen 7 is fixed in the filter screw pipe 6, the filter screen 7 is arranged in a downwardly inclined manner toward the end of the butterfly valve body 1, and the length of the filter screen 7 is less than the length of the inside of the filter screw pipe 6.

[0022] Specifically, when the gas flow needs to enter the inside of the butterfly valve body 1, the connecting pipe 8 is fixed on the exhaust pipe through the fixed flange 9, the gas flow enters the inside of the filter screw pipe 6 through the connecting pipe 8, flows to the inside of the fixed pipe 5 after being filtered by the filter screen 7, enters the inside of the butterfly valve body 1 through the air inlet 3 after flowing through the fixed pipe 5, and the opening and closing of the butterfly plate in the butterfly valve body 1 is controlled by the controller 2.

[0023] As an optimization scheme, the outer surface of the fixed pipe 5 is rotatably sleeved with a sealing sleeve 10, the sealing sleeve 10 is provided with a rotating hole matched with the fixed pipe 5 at one end close to the butterfly valve body 1, the diameter of the rotating hole is smaller than that of the sealing gasket plate 13, the sealing sleeve 10 is fixedly provided with a sealing plug plate 14 inside, the sealing gasket plate 13 is provided with a sealing groove 15 matched with the sealing plug plate 14 inside, the sealing sleeve 10 is provided with a threaded groove matched with the outer surface of the filter screw pipe 6 and the sealing gasket plate 13 inside, the sum of the lengths of the filter screw pipe 6 and the two sealing gasket plates 13 is equal to the length inside the sealing sleeve 10, the outer side of the sealing gasket plate 13 on the connecting pipe 8 is fixedly provided with a sealing sleeve ring 11, the inner wall of the sealing sleeve ring 11 on the outer ring of the sealing gasket plate 13 is fixedly glued with a sealing gasket 12.

[0024] Specifically, when the filter screw pipe 6 needs to be installed, the filter screw pipe 6 is placed between the fixed pipe 5 and the connecting pipe 8, the sealing sleeve 10 is screwed, the sealing sleeve 10 is screwed to be fixedly screwed with the outer surface of the filter screw pipe 6 and the sealing gasket plate 13, at the same time, the sealing plug plate 14 is inserted into the sealing groove 15, at the same time, the sealing sleeve 10 is inserted into the sealing sleeve ring 11 and abuts on the sealing gasket 12, so as to seal and fixedly connect the fixed pipe 5 and the connecting pipe 8, when disassembling, the sealing sleeve 10 is directly screwed, the sealing sleeve 10 is screwed to be dislocated with the filter screw pipe 6, and then the filter screw pipe 6 can be taken down for cleaning.

[0025] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the essential elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0026] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high temperature resistant butterfly valve for use in an engine, characterized in that: Including butterfly valve body (1) and controller (2), the butterfly valve body (1) one end is provided with air inlet (3), the butterfly valve body (1) other end is provided with air outlet (4), the butterfly valve body (1) outside the air inlet (3) is fixed with fixed pipe (5), the fixed pipe (5) is fixedly connected with detachable filter screw pipe (6) away from the butterfly valve body (1), the filter screw pipe (6) is detachably fixedly connected with connecting pipe (8) away from the fixed pipe (5), the air inlet (3) and the connecting pipe (8) are fixed with fixed flange (9) away from the butterfly valve body (1), the filter screw pipe (6) is fixedly connected with filter screen (7) inside.

2. The high temperature resistant butterfly valve for engine as claimed in claim 1 wherein: The fixed pipe (5) is fixed with sealing pad plate (13) on one end close to the filter screw pipe (6), and the outer diameter of the two sealing pad plates (13) is equal to the outer diameter of the filter screw pipe (6).

3. The high temperature resistant butterfly valve for engine as claimed in claim 1 wherein: The outer surface of the fixed pipe (5) is rotatably provided with a sealing sleeve (10), the sealing sleeve (10) is provided with a threaded groove inside, which cooperates with the outer surface of the filter screw pipe (6) and the sealing pad plate (13), and the sum of the lengths of the filter screw pipe (6) and the two sealing pad plates (13) is equal to the length inside the sealing sleeve (10).

4. The high temperature resistant butterfly valve for engine as claimed in claim 3 wherein: The filter screen (7) is inclined downward towards the end of the butterfly valve body (1), and the length of the filter screen (7) is less than the length inside the filter screw pipe (6).

5. The high temperature resistant butterfly valve for engine as claimed in claim 2 wherein: The sealing sleeve (10) is provided with a sealing sleeve ring (11) on one end close to the butterfly valve body (1), and the sealing sleeve ring (11) is fixedly glued to the inner wall of the sealing pad plate (13) outside the outer circle.

6. The high temperature resistant butterfly valve for engine as claimed in claim 3 wherein: The sealing sleeve (10) is provided with a rotating hole on one end close to the butterfly valve body (1), which cooperates with the fixed pipe (5), and the diameter of the rotating hole is less than the diameter of the sealing pad plate (13), the sealing sleeve (10) is fixedly connected with a sealing plug (14) inside, and the sealing pad plate (13) is provided with a sealing groove (15) inside, which cooperates with the sealing plug (14).

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