Nitrogen sealing safety valve for aero-engine packaging
By incorporating an annular groove and multiple seals into the nitrogen sealing safety valve within the aircraft engine packaging box, combined with a pressure cap and adjusting screw plug, the problem of large size and poor sealing performance of existing safety valves is solved, achieving good sealing performance and long service life.
Patent Information
- Application Number
- CN202423297534.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The safety valves in existing nitrogen gas sealing packaging boxes for aircraft engines are large and not compact, resulting in poor sealing performance and short service life.
A nitrogen-sealed safety valve for aircraft engine packaging has been designed, including a valve body, a valve core, an elastic element, and a valve seat. By setting an annular groove and a sealing element on the side of the valve body near the housing, and setting multiple sealing elements between the valve core and the valve body, and equipping it with a pressure cap and an adjusting screw plug to adjust the elastic force of the elastic element, the sealing performance and service life are enhanced.
It achieves a compact connection between the safety valve and the housing, improving sealing performance and service life, and features a compact structure and easy installation.
Smart Images
Figure CN223953371U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a safety valve technical field, concretely relates to a nitrogen seal safety valve for aero -engine packing. BACKGROUND
[0002] The transportation mode of aero -engine has multiple, can carry out transportation through sea, land, air etc.
[0003] At present, the use of aero -engine nitrogen seal packing box is not many, so its nitrogen safety valve's application is also not many, has not formed the safety valve of professional matching, some common nitrogen safety valve appearance is big, and is connected with packing box not compact, lead to the sealing performance is not good, and the service life is shorter. UTILITY MODEL CONTENTS
[0004] The utility model discloses a nitrogen seal safety valve for aero -engine packing to solve the problem in the background art.
[0005] In order to achieve the above object, the utility model provides a nitrogen seal safety valve for aero -engine packing, including valve body, valve core, elastic part and valve seat, its characterized in that: the valve core sets in the cavity of valve body, the valve seat fixed setting in valve body one end, the elastic part sets up in the cavity between valve core and valve seat, the valve core can along the valve seat extension direction do to and fro movement, to make the valve body with valve core between produce the clearance that can make airflow pass through.
[0006] As a further improvement of the technical solution, the valve body is provided with an annular groove on the side close to the packing box, and a first sealing element is arranged in the annular groove.
[0007] As a further improvement of the technical solution, the valve core is provided with an annular groove at one end close to the valve body as needed.
[0008] As a further improvement of the technical solution, a second sealing element is arranged on the valve core.
[0009] As a further improvement of the technical solution, the second sealing element can be provided with multiple as needed.
[0010] As a further improvement of the technical solution, a gland is arranged in the cavity of the valve core and the valve seat, and the gland is sleeved on the elastic element.
[0011] As a further improvement of the technical solution, an adjusting plug is arranged between the gland and the valve seat.
[0012] As a further improvement of the technical solution, the valve seat center is provided with an insect screen which is close to the valve seat.
[0013] As a further improvement of the technical solution, the first sealing member is an O-shaped sealing ring.
[0014] As a further improvement of the technical solution, the second sealing member is an O-shaped sealing ring.
[0015] Compared with the prior art, the utility model has the advantages of:
[0016] The safety valve, through first sealing member that adds in valve body near one side of tank, make safety valve and tank connection more compact, further strengthen the leakproofness, valve core and valve body junction adopt a plurality of rubber pad and seal, further strengthen the sealing performance of safety valve, simultaneously add the adjusting screw plug, can adjust the elastic force of elastic member through this device, thereby reach the open pressure value of set valve, this safety valve appearance structure is compact, convenient installation, the sealing performance is stable and reliable, long service life. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the explosion structural drawing of the utility model;
[0018] Figure 2 It is the front view of the overall structure of the utility model;
[0019] Figure 3 It is the cross section view of the overall structure of the utility model;
[0020] Figure 4 It is the perspective view of the overall structure of the utility model;
[0021] Figure 5 It is the perspective view of the overall structure of the utility model.
[0022] The meaning of each mark in the drawing is:
[0023] 1, valve body;2, valve core;3, elastic member;4, valve seat;5, first sealing member;6, second sealing member;7, gland;8, adjusting screw plug;9, insect screen. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] In the description of the utility model, it needs to understand that the orientation or position relation indicated by the terms "upper", "lower", "one end" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0026] In addition, in the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited.
[0027] Please refer to Figure 1 And Figure 3 As shown in the utility model provides a kind of nitrogen seal safety valve for aero-engine packing, including valve body 1, valve core 2, elastic member 3 and valve seat 4, the valve core 2 is arranged in the cavity of the valve body 1, the valve seat 4 is fixedly arranged in the valve body 1 one end, the elastic member 3 is arranged in the cavity between the valve core 2 and the valve seat 4, the valve core 2 can reciprocate along the extension direction of the valve seat 4, to make the valve body 1 and the valve core 2 produce the gap that can make airflow pass, realize that the gas in packing box passes the gap between the valve body 1 and the valve core 2, flows to the valve seat 4, further removes gas, when pressure recovers to use requirement, again by the elastic member 3 provides elastic force on the valve core 2, so that the valve core 2 and valve body 1 re-tightly adhere to, to reach sealing effect.
[0028] Please refer to Figures 1 to 4 As shown in the utility model provides a kind of nitrogen seal safety valve for aero-engine packing, including valve body 1, valve core 2, elastic member 3 and valve seat 4, the valve core 2 is arranged in the cavity of the valve body 1, the valve seat 4 is fixedly arranged in the valve body 1 one end, the elastic member 3 is arranged in the cavity between the valve core 2 and the valve seat 4, the valve core 2 can reciprocate along the extension direction of the valve seat 4, to make the valve body 1 and the valve core 2 produce the gap that can make airflow pass, realize that the gas in packing box passes the gap between the valve body 1 and the valve core 2, flows to the valve seat 4, further removes gas, when pressure recovers to use requirement, again by the elastic member 3 provides elastic force on the valve core 2, so that the valve core 2 and valve body 1 re-tightly adhere to, to reach sealing effect.
[0029] Please refer to Figures 1-5As shown, further, the valve core 2 is provided with a gland 7 in the cavity of the valve seat 4, the gland 7 is sleeved on the elastic member 3, the gland 7 and the valve seat 4 are provided with an adjusting plug 8, the valve seat 4 is provided with a mesh 9 in the center, the mesh 9 is close to the valve seat 4, in the embodiment, the horizontal position of the elastic member 3 in the cavity is fixed by the gland 7, and the elastic force provided by the elastic member 3 can better act on the valve core 2, the adjusting plug 8 can adjust the compression degree of the elastic member 3, and the opening pressure value of the valve required to be set is achieved, the mesh 9 is additionally provided to avoid insects from entering the safety valve, and the service life is increased.
[0030] In summary, the working principle of the scheme is as follows:
[0031] The valve body 1 is fixed on the box body, the first sealing member 5 is tightly connected with the box body, the box body is tightly sealed, the box body is filled with a certain pressure of nitrogen gas, when the nitrogen gas pressure exceeds the set pressure value, the pressure will drive the valve core 2 to displace in the horizontal direction to the direction of the valve seat 4, in the displacement process, the valve core 2 is not tightly attached with the valve body 1, the plurality of second sealing members 6 are separated from the inner wall of the valve body 1, and then the airflow in the box body passes through the valve body 1 in turn, passes through the inner hole of the gland 7, the inner hole of the adjusting plug 8, and the mesh 9 and finally passes through the valve seat 4 to the outside. When the pressure in the box recovers, the valve core 2 is displaced in the horizontal direction to the direction of the box body under the elastic force of the spring member 3, so that the plurality of second sealing members 6 are tightly attached with the inner wall of the valve body 1 again, and the sealing effect is achieved.
[0032] The basic principle, main characteristics and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A nitrogen-sealed safety valve for aircraft engine packaging, comprising a valve body (1), a valve core (2), an elastic element (3), and a valve seat (4), characterized in that: The valve core (2) is disposed in the cavity of the valve body (1), the valve seat (4) is fixedly disposed at one end of the valve body (1), the elastic element (3) is disposed in the cavity between the valve core (2) and the valve seat (4), and the valve core (2) can move back and forth along the extension direction of the valve seat (4) so that a gap is generated between the valve body (1) and the valve core (2) to allow airflow to pass through.
2. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 1, characterized in that: The valve body (1) has an annular groove on the side near the packaging box, and a first sealing element (5) is provided in the annular groove.
3. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 1, characterized in that: The valve core (2) may be provided with an annular groove at one end near the valve body (1) as needed.
4. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 3, characterized in that: The valve core (2) is provided with a second sealing element (6).
5. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 4, characterized in that: The second seal (6) can be provided in multiple forms as required.
6. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 4, characterized in that: A pressure cap (7) is provided in the cavity between the valve core (2) and the valve seat (4), and the pressure cap (7) is sleeved on the elastic member (3).
7. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 6, characterized in that: An adjusting plug (8) is provided between the pressure cap (7) and the valve seat (4).
8. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 7, characterized in that: An insect-proof net (9) is provided at the center of the valve seat (4), and the insect-proof net (9) is closely attached to the valve seat (4).
9. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 2, characterized in that: The first sealing element (5) is an O-ring.
10. A nitrogen-sealed safety valve for aircraft engine packaging according to claim 4, characterized in that: The second sealing element (6) is an O-ring.