CN214466376U

CN214466376U - Explosion-proof safety valve

Info

Publication number: CN214466376U
Application number: CN202120411978.2U
Authority: CN
Inventors: 梁娜娜
Original assignee: Qingdao Shenlan Haoran Electromechanical Equipment Co ltd
Current assignee: Qingdao Shenlan Haoran Electromechanical Equipment Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-22
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to the technical field of safety valves, and discloses an explosion-proof safety valve, which solves the problems that the existing safety valve cannot conveniently adjust the resistance generated in the valve when in use, and the valve body is easy to damage when receiving larger pressure, thereby reducing the use safety of the safety valve; the utility model discloses, through the setting of control box, bull stick and knob for when rotating the knob, drive the transfer line through the knob and rotate, through the meshing mutually between first conical gear and the second conical gear, make the bull stick rotate, through threaded connection between the bottom of bull stick and the top of valve rod, can adjust the position that the valve rod is located vertical side, thereby adjust the pressure of valve body inside, make it can reach better result of use.

Description

Explosion-proof safety valve

Technical Field

The utility model belongs to the technical field of the relief valve, specifically be an explosion-proof relief valve.

Background

A safety valve is a failsafe valve, an example of which is a pressure relief valve that automatically releases material from a boiler, pressure vessel or other system when pressure or temperature exceeds a preset limit, a pilot operated pressure relief valve is a special type of pressure safety valve, and rupture discs are a suitable choice for these needs for leak-proof, low cost, single emergency use, safety valves were first developed for steam boilers during industrial revolution, and early boilers without safety valves are prone to explosion during operation unless handled carefully.

When the existing safety valve is used, the resistance generated in the valve cannot be conveniently adjusted, and meanwhile, the valve body is easily damaged when being under large pressure, so that the use safety of the safety valve is reduced.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides an explosion-proof safety valve, the effectual present relief valve of having solved can not comparatively convenient adjust to valve internal pressure to and the lower problem of explosion-proof ability of relief valve.

In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof safety valve comprises a base, wherein one side of the base is provided with an inlet valve hole, one side of the base, which is positioned at the inlet valve hole, is fixedly connected with a mounting part, the lower end of the base is provided with an outlet valve hole, the interior of the base is connected with a valve core above the outlet valve hole, the upper end of the valve core is connected with a valve rod, the lower end of the outer wall of the valve rod is connected with a valve sleeve, the upper end of the base is connected with an upper cover, one side of the outer wall of the valve rod is connected with a spring seat, the lower end of the spring seat is connected with a valve body spring, the joint of the upper cover and the valve rod is connected with a sealing gasket, the upper end of the upper cover is connected with a control box, the upper end of the inner wall of the control box is connected with a rotating rod, the upper end of the outer wall of the rotating rod is connected with a first conical gear, one side of the upper end of the valve rod, which is positioned at the interior of the control box, one side of the inner wall of the control box is connected with a second conical gear, one end of the transmission rod is connected with a knob, and the inside of the mounting part is connected with a sealing ring.

Preferably, the base includes the skin, and outer lower extreme is connected with the explosion-proof layer, and the lower extreme on explosion-proof layer is connected with the inlayer, and the upper cover is the same with the layered structure of base.

Preferably, the outer layer is made of tungsten steel alloy, the explosion-proof layer is made of beryllium bronze, and the inner layer is made of glass fiber reinforced plastic.

Preferably, the inside of installed part is equipped with the internal thread, and the material of sealing washer is nitrile rubber, and the bottom of bull stick is equipped with the external screw thread, and is threaded connection between the bottom of bull stick and the upper end of valve rod.

Preferably, the upper end of the rotating rod is rotatably connected with the upper end of the inner wall of the control box, and one end of the transmission rod is rotatably connected with one side of the inner wall of the control box.

Preferably, the first bevel gear is meshed with the second bevel gear, the number of the sliding rods is two, and the two sides of the outer wall of the valve rod are in sliding connection with the two sides of the inner wall of the control box through the two groups of sliding rods.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses, through the setting of control box, bull stick and knob, make when rotating the knob, drive the transfer line through the knob and rotate, through the meshing between first conical gear and the second conical gear, make the bull stick rotate, through the threaded connection between the bottom of bull stick and the top of valve rod, can adjust the position that the valve rod is located vertical direction, thereby adjust the pressure inside the valve body, make it can reach better result of use;

(2) this is novel, through outer, explosion-proof layer and inlayer's setting, make the explosion-proof performance of increase relief valve that can be very big, be the tungsten steel alloy through outer material, it is high to have hardness, it is wear-resisting, intensity and toughness are better, it is heat-resisting, a series of good properties such as corrosion-resistant, make the very big increase of life of relief valve, the material on rethread explosion-proof layer is beryllium bronze, very high strength has, hardness, elasticity limit and fatigue limit, can avoid the relief valve damaged when pressure is too big, increase its explosion-proof performance, the material through the inlayer is glass steel at last, it is light and hard to have matter, the nonconducting, stable performance, mechanical strength is high, corrosion-resistant, very big explosion-proof performance and the corrosion protection performance that have increased the relief valve, can effectively prevent that inside liquid from causing the corruption to the relief valve, be favorable to use for a long time.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged view of the structure shown at a in fig. 1 according to the present invention;

FIG. 3 is a schematic structural view of the mounting member of the present invention;

fig. 4 is a schematic structural view of the middle seal ring of the present invention;

fig. 5 is a schematic view of the layered structure of the middle base of the present invention.

In the figure: 1. a base; 101. an outer layer; 102. an explosion-proof layer; 103. an inner layer; 2. an inlet valve bore; 3. a mounting member; 4. a valve outlet hole; 5. a valve core; 6. a valve stem; 7. a valve housing; 8. an upper cover; 9. a spring seat; 10. a valve body spring; 11. a gasket; 12. a control box; 13. a rotating rod; 14. a first bevel gear; 15. a slide bar; 16. a transmission rod; 17. a second bevel gear; 18. a knob; 19. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, 2, 3, 4 and 5, the present invention comprises a base 1, a valve inlet opening 2 is formed at one side of the base 1, a mounting member 3 is fixedly connected to one side of the base 1 and located at one side of the valve inlet opening 2, a valve outlet opening 4 is formed at the lower end of the base 1, a valve core 5 is connected to the inside of the base 1 and located above the valve outlet opening 4, a valve rod 6 is connected to the upper end of the valve core 5, a valve sleeve 7 is connected to the lower end of the outer wall of the valve rod 6, an upper cover 8 is connected to the upper end of the base 1, a spring seat 9 is connected to one side of the outer wall of the valve rod 6, a valve body spring 10 is connected to the lower end of the spring seat 9, a sealing gasket 11 is connected to the connection part of the upper cover 8 and the valve rod 6, a control box 12 is connected to the upper end of the upper cover 8, a rotating rod 13 is connected to the upper end of the inner wall of the control box 12, a first bevel gear 14 is connected to the upper end of the outer wall of the rotating rod 13, a sliding rod 15 is connected to one side of the upper end of the control box 12, one side of the inner wall of the control box 12 is connected with a transmission rod 16, one side of the outer wall of the transmission rod 16 is connected with a second bevel gear 17, one end of the transmission rod 16 is connected with a knob 18, and the inside of the mounting part 3 is connected with a sealing ring 19.

In the second embodiment, on the basis of the first embodiment, the base 1 comprises the outer layer 101, the lower end of the outer layer 101 is connected with the explosion-proof layer 102, the lower end of the explosion-proof layer 102 is connected with the inner layer 103, and the upper cover 8 and the base 1 have the same layered structure, so that the explosion-proof performance of the safety valve can be effectively improved.

In the third embodiment, on the basis of the first embodiment, the outer layer 101 is made of tungsten steel alloy and has a series of excellent performances such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, the explosion-proof layer 102 is made of beryllium bronze and has very high strength, hardness, elastic limit and fatigue limit, the inner layer 103 is made of glass fiber reinforced plastic and has the advantages of light weight, hardness, non-conductivity, stable performance, high mechanical strength and corrosion resistance, and the explosion-proof performance and the corrosion resistance of the safety valve are greatly improved.

Fourth embodiment, on the basis of first embodiment, the inside of installed part 3 is equipped with the internal thread, and the material of sealing washer 19 is nitrile rubber, and the bottom of bull stick 13 is equipped with the external screw thread, and is threaded connection between the bottom of bull stick 13 and the upper end of valve rod 6, is convenient for connect the pipeline, increases the effect of using.

In the fifth embodiment, on the basis of the first embodiment, the upper end of the rotating rod 13 is rotatably connected with the upper end of the inner wall of the control box 12, and one end of the transmission rod 16 is rotatably connected with one side of the inner wall of the control box 12, so that the rotating rod 13 and the transmission rod 16 are more stable in rotation.

Sixth embodiment, on the basis of the first embodiment, the first bevel gear 14 is engaged with the second bevel gear 17, the number of the sliding rods 15 is two, and two sides of the outer wall of the valve rod 6 are slidably connected with two sides of the inner wall of the control box 12 through the two sets of sliding rods 15, so that the valve rod 6 is more stable during movement.

The working principle is as follows: when the safety valve works, the inlet valve hole 2 and the outlet valve hole 4 are communicated with an external pipeline, the knob 18 is rotated through the arrangement of the control box 12, the rotating rod 13 and the knob 18, the transmission rod 16 is driven to rotate through the knob 18, the rotating rod 13 is rotated through the meshing between the first bevel gear 14 and the second bevel gear 17, the position of the valve rod 6 in the vertical direction can be adjusted through the threaded connection between the bottom end of the rotating rod 13 and the top end of the valve rod 6, so that the pressure inside the valve body is adjusted, the explosion-proof performance of the safety valve can be greatly improved through the arrangement of the outer layer 101, the explosion-proof layer 102 and the inner layer 103, the outer layer 101 is made of tungsten steel alloy, and the safety valve has a series of excellent performances such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, the service life of the safety valve is greatly prolonged, and the explosion-proof layer 102 is made of bronze beryllium, the high-strength high-voltage safety valve has high strength, hardness, elastic limit and fatigue limit, can avoid the safety valve from being damaged when the pressure is too high, increases the explosion-proof performance of the safety valve, finally adopts the glass fiber reinforced plastic as the material of the inner layer 103, has the advantages of light weight, hardness, non-conductivity, stable performance, high mechanical strength and corrosion resistance, greatly increases the explosion-proof performance and the corrosion resistance of the safety valve, and can effectively prevent the safety valve from being corroded by internal liquid.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An explosion-proof safety valve, includes base (1), its characterized in that: an inlet valve hole (2) is formed in one side of the base (1), a mounting part (3) is fixedly connected to one side of the base (1) and located on one side of the inlet valve hole (2), an outlet valve hole (4) is formed in the lower end of the base (1), a valve core (5) is connected to the inner portion of the base (1) and located above the outlet valve hole (4), a valve rod (6) is connected to the upper end of the valve core (5), a valve sleeve (7) is connected to the lower end of the outer wall of the valve rod (6), an upper cover (8) is connected to the upper end of the base (1), a spring seat (9) is connected to one side of the outer wall of the valve rod (6), a valve body spring (10) is connected to the lower end of the spring seat (9), a sealing gasket (11) is connected to the joint of the upper cover (8) and the valve rod (6), a control box (12) is connected to the upper end of the upper cover (8), a rotating rod (13) is connected to the upper end of the inner wall of the control box (12), a first bevel gear (14) is connected to the upper end of the outer wall of the rotating rod (13), one side of the upper end of the valve rod (6) and the inner part of the control box (12) are connected with a sliding rod (15), one side of the inner wall of the control box (12) is connected with a transmission rod (16), one side of the outer wall of the transmission rod (16) is connected with a second bevel gear (17), one end of the transmission rod (16) is connected with a knob (18), and the inner part of the mounting part (3) is connected with a sealing ring (19).

2. An explosion-proof safety valve according to claim 1, wherein: the base (1) comprises an outer layer (101), the lower end of the outer layer (101) is connected with an explosion-proof layer (102), the lower end of the explosion-proof layer (102) is connected with an inner layer (103), and the upper cover (8) is the same as the layered structure of the base (1).

3. An explosion-proof safety valve according to claim 2, wherein: the outer layer (101) is made of tungsten steel alloy, the explosion-proof layer (102) is made of beryllium bronze, and the inner layer (103) is made of glass fiber reinforced plastic.

4. An explosion-proof safety valve according to claim 1, wherein: the inside of installed part (3) is equipped with the internal thread, and the material of sealing washer (19) is nitrile rubber, and the bottom of bull stick (13) is equipped with the external screw thread, and is threaded connection between the bottom of bull stick (13) and the upper end of valve rod (6).

5. An explosion-proof safety valve according to claim 1, wherein: the upper end of the rotating rod (13) is rotatably connected with the upper end of the inner wall of the control box (12), and one end of the transmission rod (16) is rotatably connected with one side of the inner wall of the control box (12).

6. An explosion-proof safety valve according to claim 1, wherein: the first bevel gear (14) and the second bevel gear (17) are meshed, the number of the sliding rods (15) is two, and two sides of the outer wall of the valve rod (6) are in sliding connection with two sides of the inner wall of the control box (12) through the two groups of sliding rods (15).