CN210950001U

CN210950001U - High-pressure ball valve

Info

Publication number: CN210950001U
Application number: CN201922126169.2U
Authority: CN
Inventors: 洪钦赐; 洪守用
Original assignee: Quancheng Valve Co ltd
Current assignee: Quancheng Valve Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-07-07
Anticipated expiration: 2029-12-02

Abstract

The utility model discloses a high-pressure ball valve belongs to the valve technology field, including the main valve body, the auxiliary valve body, spherical valve core, the disk seat, valve rod and valve gap, scraper spare is equipped with four along disk seat inner ring face equidistant, form the space between every two adjacent scraper spares, and the one end shaping that corresponds space department towards spherical valve core center department on the inner ring face of disk seat has attached spherical valve core on the surface sealing ring body, set up the cavity in surrounding its week side and the through-hole in cavity and each space in the intercommunication in the disk seat, spherical valve core and disk seat laminating department form annular cavity to one side of spherical valve core center department dorsad, the inlet channel of the corresponding side annular cavity of intercommunication is all seted up to the upper and lower side of auxiliary valve body, the exhaust hole has been seted up to the cavity position in one side of the main valve body, set up the. The utility model discloses can successfully discharge the medium granule that the scraping got off to can avoid influencing the quality of carrying the medium because of medium granule gets into the passageway that high pressure ball valve carried the medium.

Description

High-pressure ball valve

Technical Field

The utility model relates to the technical field of valves, specificly relate to a high-pressure ball valve.

Background

The ball valve is a commonly used valve, and its structure generally includes valve body, spheroid, valve rod, disk seat, valve gap, but current ball valve sealing performance is general relatively poor, especially when the ball valve is applied to the operating mode of taking high temperature high pressure, and some high temperature medium have gapped junction very easily to get into between disk seat and the valve body, valve gap, the valve rod to cause the influence to the normal operating of ball valve. Because the ball valve structure has certain defect, the ball valve rotates laboriously after the medium is piled up, and the whole ball valve fails.

The patent with the publication number of CN 207500524U discloses a high-pressure ball valve, it is including valve body, spheroid, valve rod, valve gap spheroid and disk seat be located the valve body, be equipped with the clearance between disk seat and the spheroid, the valve rod passes the valve gap and is connected with the spheroid upper end, valve rod and valve gap junction one end are equipped with first seal structure, and the other end is equipped with second seal structure, be equipped with the scraper ring that can pile up the medium and clear away when the spheroid rotates in the clearance, its beneficial effect is: the sealing is reliable, the sealing filler designed by the belleville spring can adapt to multiple adjustments, the arranged scraper ring effectively scrapes medium particles stuck on the ball body, the service life of the ball valve is prolonged, and the stability of the ball valve in use is ensured. However, it has the following disadvantages: the medium particles scraped by the scraper ring are difficult to discharge, and even if the medium particles can be discharged, the medium particles can only be discharged through a channel for conveying the medium through the high-pressure ball valve, and the quality of the conveyed medium can be influenced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a high-pressure ball valve, it can be with the successful discharge of the medium granule that the scraping got off to can avoid influencing the quality of carrying the medium because of medium granule gets into the passageway that high-pressure ball valve carried the medium.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a high-pressure ball valve comprises a main valve body, an auxiliary valve body, a spherical valve core, a valve rod and a valve cover, wherein the main valve body and the auxiliary valve body are fixed together through bolts;

the scraper elements are arranged at equal intervals along the inner ring surface of the valve seat, a gap is formed between every two adjacent scraper elements, a sealing ring body attached to the surface of the spherical valve element is formed at one end, facing the center of the spherical valve element, of the inner ring surface of the valve seat, corresponding to each gap, through holes located on one side, opposite to the spherical valve element, of the sealing ring body are formed in the inner ring surface of the valve seat, a hollow cavity surrounding the periphery of the valve seat and communicated with all the through holes is formed in the valve seat, exhaust holes are formed in one side, located on the main valve body, of the hollow cavity, and a vent channel for communicating the outer surface of the main valve body with the exhaust holes is formed; the upper end and the lower end of the spherical valve core are both formed with bosses and are sleeved with sealing plates in a sealing manner, the peripheral sides of the sealing plates are tightly attached to the valve body, an annular cavity is formed between one side of the joint of the spherical valve core and the valve seat, which is back to the center of the spherical valve core, and the sealing plates on the corresponding side, the upper side and the lower side of the auxiliary valve body are both provided with air inlet channels communicated with the annular cavity on the corresponding side and the outer surface of the auxiliary valve body, and the outer ports of the air inlet channels are.

Furthermore, an annular air inlet chamber communicated with the outer ports of the two air inlet channels is fixedly sleeved on the outer side of the auxiliary valve body, and the inflation tube is communicated with the top of the annular air inlet chamber. The annular air inlet chamber can be filled with air through the inflation tube, and then the annular air inlet chamber can be filled with air into the two air inlet channels simultaneously, so that the synchronous control of inflation operation is facilitated.

Furthermore, two the outer port outside of air vent is equipped with a lock particle collection box on the external surface of main valve body jointly, the upper end of particle collection box and the part of the attached main valve body surface of lower extreme all pass through buckle subassembly and the joint of main valve body. The particle collecting box is designed to collect the medium particles discharged from the two air ducts simultaneously.

Further, the lower end of the particle collecting box is formed with a groove extending downwards. The medium particles collected by the particle collecting box fall into the groove, and the medium particles are prevented from reentering the air duct.

Further, a bump is fixed on the top of the particle collection box. The particle collecting box can be detached from the main valve body conveniently through the convex block.

3. Advantageous effects

The utility model arranges four scraper elements at equal intervals along the inner ring surface of the valve seat, a gap is formed between every two adjacent scraper elements, medium particles scraped by the scraper elements can be kept in the gap, a sealing ring body attached on the surface of the spherical valve element is formed at one end of the inner ring surface of the valve seat, which faces the center of the spherical valve element, corresponding to the gap, the channel for conveying the medium by the high-pressure ball valve can be effectively avoided from entering the medium particle, a hollow cavity surrounding the periphery of the valve seat and a through hole for communicating the hollow cavity with each gap are arranged in the valve seat, an annular cavity is formed at one side of the joint of the spherical valve element and the valve seat, air inlet channels for communicating the annular cavity at the corresponding side with the outer surface of the auxiliary valve body are arranged at the upper side and the lower side of the auxiliary valve body, an inflation tube is communicated with the outer port of the air inlet channel, an exhaust hole is arranged at one side, the gas is filled into the gas inlet channel through the gas filling pipe, the gas respectively enters the two annular cavities, the gas can blow medium particles into the through holes and carry the medium particles into the hollow cavities, then the medium particles enter the air passage from the exhaust holes, and finally the medium particles are discharged out of the main valve body along the air passage and enter the particle collecting box. Then the utility model discloses can effectively scrape accumulational medium granule down, and can successfully discharge the medium granule that the scraping got off to can avoid influencing the quality of carrying the medium because of medium granule gets into the passageway that high-pressure ball valve carried the medium.

Drawings

Fig. 1 is a schematic sectional structure view in the front view direction of the present invention;

FIG. 2 is an enlarged view of the structure of the area A in FIG. 1;

FIG. 3 is a schematic view of the structure of section A-A in FIG. 1;

fig. 4 is a plan view of the valve seat 12 on the upper side of the ball valve element 2.

Reference numerals: 1. an annular air intake chamber; 2. a spherical valve core; 3. a sub-valve body; 4. an air intake passage; 5. an inflation tube; 6. a valve stem; 7. a valve cover; 8. closing the plate; 9. a main valve body; 10. a sealing ring body; 11. a scraper element; 12. a valve seat; 13. an exhaust hole; 14. a hollow cavity; 15. a through hole; 16. a groove; 17. a buckle assembly; 18. a particle collection box; 19. a bump; 20. an air duct.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

A high-pressure ball valve as shown in fig. 1 and 2, which comprises a main valve body 9, an auxiliary valve body 3, a spherical valve core 2, a valve rod 6 and a valve cover 7, wherein the main valve body 9 and the auxiliary valve body 3 are fixed together through bolts, the spherical valve core 2 is arranged between the connecting sides of the main valve body 9 and the auxiliary valve body 3, the valve rod 6 passes through the valve cover 7 to be connected with the upper end of the spherical valve core 2, annular valve seats 12 are respectively surrounded on the upper side and the lower side of the spherical valve core 2, a gap is arranged between the valve seats 12 and the spherical valve core 2, and a scraper 11 for removing accumulated media on the spherical valve core 2 is arranged in the gap;

as shown in fig. 4, four scraper elements 11 are arranged at equal intervals along the inner annular surface of the valve seat 12, a gap is formed between every two adjacent scraper elements 11, a sealing ring 10 attached to the surface of the spherical valve element 2 is formed at one end of the inner annular surface of the valve seat 12, which faces the center of the spherical valve element 2, corresponding to the gap, through holes 15 are formed in the inner annular surface of the valve seat 12, which are located at each gap, the through holes 15 are located on the sealing ring 10, which faces away from the spherical valve element 2, hollow cavities 14 are formed in the valve seat 12, which surround the circumferential sides of the hollow cavities and are communicated with all the through holes 15, vent holes 13 are formed in one side of the hollow cavity 14, which is located at the main valve body 9, and vent passages 20 are formed in the main valve body 9 and; as shown in fig. 1, bosses are formed at the upper end and the lower end of the spherical valve element 2, seal plates 8 are sleeved on the upper end and the lower end of the spherical valve element 2 in a sealing manner, the peripheral sides of the seal plates 8 are tightly attached to the valve body, an annular cavity is formed between one side of the joint of the spherical valve element 2 and the valve seat 12, which faces away from the center of the spherical valve element 2, and the seal plates 8 on the corresponding side, an air inlet channel 4 communicating the annular cavity on the corresponding side with the outer surface of the auxiliary valve body 3 is formed at the upper side and the lower side of the auxiliary valve body 3.

In this embodiment, as shown in fig. 1, an annular intake chamber 1 communicating with the outer ports of the two intake channels 4 is fixedly sleeved on the outer side of the sub-valve body 3, and the inflation tube 5 communicates with the top of the annular intake chamber 1. The annular air inlet chamber 1 can be filled with air through the inflation tube 5, and then the annular air inlet chamber 1 can be filled with air into the two air inlet channels 4 simultaneously, so that the synchronous control of inflation operation is facilitated.

In this embodiment, as shown in fig. 3, a particle collecting box 18 fastened on the outer surface of the main valve body 9 is provided outside the outer ports of the two air ducts 20, and the upper end and the lower end of the particle collecting box 18 are fastened to the main valve body 9 through a fastening component 17. The design of the particle collection box 18 facilitates the simultaneous collection of media particles discharged from both air ducts 20.

In this embodiment, as shown in FIG. 3, the lower end of the particle collecting box 18 is formed with a downwardly extending groove 16. Allowing the media particles collected by the particle collection box 18 to fall into the recess 16 helps prevent the media particles from re-entering the air passage 20.

In this embodiment, as shown in FIG. 3, a projection 19 is fixed to the top of the particle collecting box 18. The particle collecting box 18 can be easily detached from the main valve body 9 by means of the projection 19.

The specific application process of the high-pressure ball valve is as follows:

in the rotation process of the spherical valve core 2, the scraper pieces 11 can scrape off medium particles adhered to the part, corresponding to the valve seat 12, of the spherical valve core 2, the scraped medium particles firstly enter a gap between every two adjacent scraper pieces 11, the sealing ring body 10 can prevent the medium particles from entering a conveying channel of the valve body, when the medium particles need to be cleaned, the gas filling pipe 5 is connected with the gas pump, the gas pump is started, gas is filled into the annular gas inlet chamber 1 and respectively enters the two annular cavities along the two gas inlet channels 4, the gas can blow the medium particles into the through hole 15 and carry the medium particles into the hollow cavity 14, then enters the vent channel 20 from the gas outlet hole 13, and finally, the main valve body 9 is discharged along the vent channel 20 and enters the particle collecting box 18.

According to the above, the utility model discloses can effectively scrape down accumulational medium granule, and can successfully discharge the medium granule that the scraping got off to can avoid influencing the quality of carrying the medium because of medium granule gets into the passageway that high pressure ball valve carried the medium.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. A high-pressure ball valve comprises a main valve body (9), an auxiliary valve body (3), a spherical valve core (2), a valve rod (6) and a valve cover (7), wherein the main valve body (9) and the auxiliary valve body (3) are fixed together through bolts, the spherical valve core (2) is arranged between the connecting sides of the main valve body (9) and the auxiliary valve body (3), the valve rod (6) penetrates through the valve cover (7) to be connected with the upper end of the spherical valve core (2), annular valve seats (12) are arranged on the upper side and the lower side of the spherical valve core (2) in a surrounding mode, a gap is arranged between the valve seats (12) and the spherical valve core (2), and a scraper piece (11) used for clearing accumulated media on the spherical valve core (2) is arranged in the gap; the scraper device is characterized in that four scraper elements (11) are arranged at equal intervals along the inner annular surface of a valve seat (12), a gap is formed between every two adjacent scraper elements (11), a sealing ring body (10) attached to the surface of the spherical valve core (2) is formed at one end, facing the center of the spherical valve core (2), of the inner annular surface of the valve seat (12), through holes (15) located at one side, opposite to the spherical valve core (2), of the sealing ring body (10) are formed at positions, corresponding to the gaps, of the inner annular surface of the valve seat (12), hollow cavities (14) surrounding the periphery of the hollow cavities and communicated with all the through holes (15) are formed in the valve seat (12), exhaust holes (13) are formed in one side, located on a main valve body (9), and air ducts (20) communicated with the outer surface of the main valve body and the exhaust holes (13) are formed in the main valve body (9); the ball-shaped valve element is characterized in that bosses are formed at the upper end and the lower end of the ball-shaped valve element (2), sealing sleeves are provided with sealing plates (8), the peripheral sides of the sealing plates (8) are tightly attached to the valve body, an annular cavity is formed between one side of the attaching position of the ball-shaped valve element (2) back to the center of the ball-shaped valve element (2) and the sealing plates (8) on the corresponding side, the upper side and the lower side of the auxiliary valve body (3) are provided with air inlet channels (4) communicated with the annular cavity on the corresponding side and the outer surface of the auxiliary valve body (3), and outer ports of the air inlet channels (4) are communicated.

2. A high-pressure ball valve according to claim 1, characterized in that the outer side of the auxiliary valve body (3) is fixedly sleeved with an annular inlet chamber (1) communicated with the outer ports of the two inlet channels (4), and the inflation tube (5) is communicated with the top of the annular inlet chamber (1).

3. A high-pressure ball valve according to claim 1, wherein a particle collecting box (18) fastened on the outer surface of the main valve body (9) is provided outside the outer ports of the two air ducts (20), and the upper end and the lower end of the particle collecting box (18) are fastened to the surface of the main valve body (9) through a fastening component (17).

4. A high-pressure ball valve according to claim 3, characterized in that the lower end of the particle collecting box (18) is formed with a downwardly extending groove (16).

5. A high-pressure ball valve according to claim 3, characterized in that a projection (19) is fixed to the top of the particle collecting box (18).