CN218582245U

CN218582245U - Large-traffic high-pressure electric stop valve

Info

Publication number: CN218582245U
Application number: CN202221340387.1U
Authority: CN
Inventors: 王学民; 柳斌; 张蕾; 王学洪
Original assignee: Weihai Zhonghao Pneumatic Hydraulic Co ltd
Current assignee: Weihai Zhonghao Pneumatic Hydraulic Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-03-07
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a large-traffic high-pressure electric stop valve, including the electro-magnet, still include the main valve body, vice valve body, be equipped with the air duct of right angle form in the main valve body, the air duct lateral part is the import, and the bottom is the export, still is equipped with the main valve core in the main valve body, and the upper edge of export is equipped with disk seat portion, and main valve core lower part top realizes sealedly on disk seat portion, main valve body upside axle center portion is provided with the guide axle of ventilating, and the guide axle periphery of ventilating is around being equipped with spring one, and spring one compresses tightly the main valve body on the disk seat, the main valve body is equipped with main valve upper chamber on the main valve core upside, is equipped with the damping pipe in the main valve body, and the damping pipe lower extreme is fine hole, and the upper end aperture is greater than the lower extreme; the utility model discloses thereby large-traffic high pressure electric stop valve accomplishes the inside atmospheric pressure of little drive power cooperation through the electro-magnet as drive power and can open the valve and close the valve fast, under the not electrified state, utilizes spring one and two kinds of forces of main valve epicoele indoor pressure to compress tightly the main valve body jointly, guarantees good cutting off nature.

Description

Large-traffic high-pressure electric stop valve

Technical Field

The utility model relates to the technical field of valves, specifically indicate a large-traffic high-pressure electric stop valve.

Background

The electric stop valve and the flange gate valve belong to the same type of valve and are composed of an electric actuating mechanism or a pneumatic actuating mechanism and a stop valve, and the difference is that the closing part of the stop valve is a valve body which rotates around the central line of the valve body to open and close. Gate valves are used in pipelines primarily to shut off, distribute and change the direction of flow of a medium. Two-piece ball valve, three-piece ball valve are a new type valve which is widely used in recent years.

In the prior art, a stop valve is usually in a structure taking pneumatic power as driving force, and a high-pressure air source is adopted as the driving force to conveniently control a valve core to move; however, the disadvantage is that an additional gas supply source must be provided to supply high-pressure gas, and usually, in order to be used for a long time, a pressure boosting device such as an air compressor must be provided, so that the overall volume of the device is increased, and the cost is high. In view of the above, we propose a high flow high pressure electric shutoff valve to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a rational in infrastructure, the practicality is strong, can adopt electric control's stop valve, small, a large-traffic high pressure electric stop valve that excellent in use effect.

In order to solve the technical problem, the utility model provides a technical scheme does: a large-flow high-pressure electric stop valve comprises an electromagnet, a main valve body and an auxiliary valve body, wherein a right-angle air passage is arranged in the main valve body, the side part of the air passage is an inlet, the bottom part of the air passage is an outlet, a main valve core is also arranged in the main valve body, the upper edge of the outlet is provided with a valve seat part, the lower part of the main valve core abuts against the valve seat part to realize sealing, the shaft center part of the upper side of the main valve body is provided with an air guide shaft, the periphery of the air guide shaft is wound with a first spring, the first spring tightly presses the main valve body on the valve seat, the upper side of the main valve core of the main valve body is provided with an upper main valve chamber, a damping pipe is arranged in the main valve body, the lower end of the damping pipe is a fine micropore, the aperture of the upper end of the damping pipe is larger than that the lower end is communicated with the inlet, the upper end of the main valve is communicated with the upper chamber of the main valve, a pressure relief pipe penetrates through the upper part and the lower end of the air guide shaft is connected to the outlet;

an auxiliary valve body is arranged on the upper side of the main valve body, an auxiliary valve core is arranged in the auxiliary valve body, a second spring is arranged at the bottom of the auxiliary valve core, the second spring pushes the auxiliary valve core upwards and tightly against a push rod of the electromagnet, an upper auxiliary valve cavity is arranged on the upper side of the auxiliary valve core of the auxiliary valve body, and an inner through pipe which penetrates through the main valve body and is communicated with the ventilation guide shaft is arranged in the auxiliary valve;

the upper cavity of the main valve is communicated with the upper cavity of the auxiliary valve and is provided with a vent pipe; when the electromagnet is electrified, the auxiliary valve core can be pushed downwards to move downwards through the push rod, so that the upper cavity of the auxiliary valve is communicated with the inner through pipe.

Furthermore, the area of the lower end face of the main valve body is smaller than that of the upper end face, a ring groove is arranged in the side wall of the main valve body, and a sealing ring is arranged in the ring groove.

Furthermore, a soft sealing gasket is arranged at the contact end of the lower end face of the main valve body and the valve seat.

Furthermore, the main valve body and the auxiliary valve body are made of stainless steel.

Furthermore, lead seals are arranged at the connecting parts of the main valve body, the auxiliary valve body and the electromagnet.

Compared with the prior art, the utility model the advantage lie in: the utility model discloses thereby large-traffic high-pressure electric stop valve accomplishes little drive power cooperation inside atmospheric pressure through the electro-magnet and can open the valve fast and close the valve as drive power, under the not on-state, utilizes spring one and main valve epicoele indoor pressure two kinds of power to compress tightly the main valve body jointly, guarantees good cutting-off nature.

Drawings

Fig. 1 is a schematic structural view of the high-flow high-pressure electric stop valve of the present invention.

Fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention.

Fig. 3 is an enlarged schematic structural view of the point B in fig. 1 according to the present invention.

As shown in the figure: 1. an electromagnet; 2. a main valve body; 3. a sub-valve body; 4. an inlet; 5. an outlet; 6. a valve seat portion; 7. a main valve element; 8. a ventilation guide shaft; 9. a first spring; 10. a main valve upper chamber; 11. a damper tube; 12. fine pores; 13. a pressure relief pipe; 14. an auxiliary valve core; 15. a second spring; 16. a push rod; 17. an upper chamber of the secondary valve; 18. an inner through pipe; 19. a seal ring; 20. a soft seal gasket; 21. a breather tube.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

A large-flow high-pressure electric stop valve comprises an electromagnet 1, and further comprises a main valve body 2 and an auxiliary valve body 3, wherein a right-angle air passage is arranged in the main valve body 2, the side part of the air passage is provided with an inlet 4, the bottom part of the air passage is provided with an outlet 5, a main valve core 7 is further arranged in the main valve body 2, the upper edge of the outlet 5 is provided with a valve seat 6, the lower part of the main valve core 7 abuts against the valve seat 6 to realize sealing, the upper side shaft part of the main valve body 2 is provided with a ventilation guide shaft 8, the periphery of the ventilation guide shaft 8 is wound with a spring I9, the main valve body 2 is tightly pressed on the valve seat by the spring I9, the upper side of the main valve core 7 of the main valve body 2 is provided with a main valve upper chamber 10, a damping pipe 11 is arranged in the main valve body 2, the lower end of the damping pipe 11 is a fine pore 12, the pore diameter of the upper end is larger than that of the lower end, the lower end of the damping pipe 11 is communicated with the inlet 4, the upper end of the main valve upper chamber 10, the ventilation guide shaft 8 is communicated with the main valve upper chamber 10, a pressure relief pipe, the upper chamber of the main valve 8 penetrates up and down, the pressure relief pipe 13, and the lower end of the pressure relief pipe 13 is connected to the outlet 5;

an auxiliary valve body 3 is arranged on the upper side of the main valve body 2, an auxiliary valve core 14 is arranged in the auxiliary valve body 3, a second spring 15 is arranged at the bottom of the auxiliary valve core 14, the second spring 15 enables the auxiliary valve core 14 to be tightly propped up on a push rod 16 of the electromagnet 1, an auxiliary valve upper cavity 17 is arranged on the upper side of the auxiliary valve core 14 of the auxiliary valve body 3, and an inner through pipe 18 which penetrates through the main valve body 2 and is communicated with the ventilation guide shaft 8 is arranged in the auxiliary valve;

the main valve upper chamber 10 is communicated with the auxiliary valve upper chamber 17 and is provided with a vent pipe 21; the electromagnet 1 can be electrified to push the auxiliary valve core 14 downwards through the push rod 16, so that the upper chamber 17 of the auxiliary valve is communicated with the inner through pipe 18.

Further, the area of the lower end face of the main valve body 2 is smaller than that of the upper end face, a ring groove is formed in the side wall of the main valve body 2, and a sealing ring 19 is arranged in the ring groove. The contact end of the lower end face of the main valve body 2 and the valve seat is provided with a soft sealing gasket 20. The main valve body 2 and the auxiliary valve body 3 are made of stainless steel. The main valve body 2, the auxiliary valve body 3 and the electromagnet 1 are all provided with lead seals at the connecting parts.

In actual use, when the electromagnet 1 is not powered, pressure gas at the inlet 4 end enters the upper main valve chamber 10 through the damping pipe 11 of the main valve core 7, so that the pressures on the upper side and the lower side of the main valve core 7 are balanced, the upper side air pressure serves as power to close the main valve core 7, when the electromagnet 1 is not powered, the push rod 16 does not push the auxiliary valve core 14 downwards, the auxiliary valve core 14 is pushed upwards under the action of the second spring 15, as shown in fig. 2, the inner through pipe 18 is closed when the auxiliary valve core 14 is pushed upwards, at this time, the gas entering from the vent pipe 21 cannot enter the inner through pipe 18 and is released downwards through the pressure release pipe 13, so that the pressures on the upper side and the lower side of the main valve core 7 are the same, meanwhile, the upper side area of the main valve body 2 is larger than the lower side area, so that the upper side pressure is the same as the lower side pressure, the upper side area is larger than the lower side area, so that the upper side pressure is larger, the valve core 7 can be pressed downwards, and the first spring 9 also has the combined action to press the valve seat part 6, so that the valve is firmly closed;

when the electromagnet 1 is energized, the push rod 16 presses the sub valve body 14 downward to open the inner pipe 18, the pressure in the main valve upper chamber 10 enters the inner pipe 18 from the vent pipe 21 and then enters the pressure release pipe 13 downward to release the pressure in the main valve upper chamber 10, and at this time, the pressure in the main valve upper chamber 10 drops suddenly, and after the pressure drops suddenly, the gas entering the main valve upper chamber 10 from the fine pipe due to the action of the damping pipe 11 is very small, so that the pressure cannot be formed on the upper side, and after the pressure on the upper side of the main valve body 7 drops, the pressure on the lower side of the main valve body 7 is higher than the pressure on the upper side, and the main valve body 7 is pushed upward to communicate the inlet 4 with the outlet 5.

The present invention and the embodiments thereof have been described above, but the present invention is not limited thereto, and the embodiments shown in the detailed description are only some examples, not all examples, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. A large-flow high-pressure electric stop valve comprises an electromagnet (1), and is characterized by further comprising a main valve body (2) and an auxiliary valve body (3), wherein a right-angle air passage is arranged in the main valve body (2), the side part of the air passage is provided with an inlet (4), the bottom part of the air passage is provided with an outlet (5), a main valve core (7) is further arranged in the main valve body (2), the upper edge of the outlet (5) is provided with a valve seat part (6), the lower part of the main valve core (7) abuts against the valve seat part (6) to realize sealing, an air guide shaft (8) is arranged at the upper side shaft part of the main valve body (2), a first spring (9) is wound on the outer periphery of the air guide shaft (8), the first spring (9) tightly presses the main valve body (2) on the valve seat, an upper main valve cavity (10) is arranged at the upper side of the main valve core (7) of the main valve body (2), a damping pipe (11) is arranged in the main valve body (2), the lower end of the damping pipe (11) is a fine pore (12), the pore diameter of the upper end is larger than the lower end, the lower end of the damping pipe (11) is communicated with the inlet (4), the upper end (10), the upper end is communicated with the upper cavity (10), a release pipe (8), the upper end is provided with the upper cavity, the lower end of the main valve body, the main valve body (13) and the lower end of the release pipe (13) is vertically and is connected with the lower end (5), and is connected with the lower end (13) through the lower end of the air outlet (5);

an auxiliary valve body (3) is arranged on the upper side of the main valve body (2), an auxiliary valve core (14) is arranged in the auxiliary valve body (3), a second spring (15) is arranged at the bottom of the auxiliary valve core (14), the second spring (15) enables the auxiliary valve core (14) to be tightly propped against a push rod (16) of the electromagnet (1) upwards, an upper auxiliary valve cavity (17) is arranged on the upper side of the auxiliary valve core (14) of the auxiliary valve body (3), and an inner through pipe (18) which penetrates through the main valve body (2) and is communicated with the ventilation guide shaft (8) is arranged in the auxiliary valve;

the main valve upper chamber (10) is communicated with the auxiliary valve upper chamber (17) and is provided with a vent pipe (21); when the electromagnet (1) is electrified, the auxiliary valve core (14) can be pushed downwards to move downwards through the push rod (16), so that the upper chamber (17) of the auxiliary valve is communicated with the inner through pipe (18).

2. The high-flow high-pressure electric stop valve according to claim 1, characterized in that the area of the lower end surface of the main valve body (2) is smaller than that of the upper end surface, a ring groove is arranged in the side wall of the main valve body (2), and a sealing ring (19) is arranged in the ring groove.

3. A high-flow high-pressure electric stop valve according to claim 1, characterized in that the contact end of the lower end face of the main valve body (2) and the valve seat is provided with a soft sealing gasket (20).

4. The high-flow high-pressure electric stop valve according to claim 1, characterized in that the main valve body (2) and the auxiliary valve body (3) are made of stainless steel.

5. The high-flow high-pressure electric stop valve according to claim 1, characterized in that the main valve body (2), the auxiliary valve body (3) and the electromagnet (1) are provided with lead seals at their connecting parts.