CN216045560U

CN216045560U - Two-half type corrosion-resistant ball valve with flow guide pipe

Info

Publication number: CN216045560U
Application number: CN202121363624.1U
Authority: CN
Inventors: 金多万
Original assignee: Shanghai Tianqing Industrial Co ltd
Current assignee: Shanghai Tianqing Industrial Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-03-15
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a two-half type corrosion-resistant ball valve with a flow guide pipe, which comprises PTFE two-half type full-packaging sealing seats, wherein the PTFE two-half type full-packaging sealing seats are respectively installed and fixed at two ends of a valve body through valve body clamps, flow guide grooves are formed in the inner sides of the PTFE two-half type full-packaging sealing seats, flow guide holes are formed in the bottoms of the flow guide grooves and extend to the outside of the valve body, the flow guide holes are arranged oppositely, a drainage steel pipe head is installed on the outside of the valve body in a threaded fixing mode, the outside of the drainage steel pipe head is screwed, sealed and fixed through an internal thread plugging cap, and the valve body is in a closed state. The utility model discloses a change the structure of PTFE two half full packet of seal receptacle and two half valve bodies, set up the guiding gutter on every half seal receptacle and valve body to set up water conservancy diversion hole to ball valve outside bottom the guiding gutter, water conservancy diversion hole and the outside circular nonrust steel pipe UNICOM of ball valve, thereby can discharge hydrops immediately and be detained, effectively solve the secondary pollution risk.

Description

Two-half type corrosion-resistant ball valve with flow guide pipe

Technical Field

The utility model relates to the field related to ball valves, in particular to a two-half type corrosion-resistant ball valve with a flow guide pipe.

Background

The existing ball valve is a PTFE (polytetrafluoroethylene) full-packaging sealing seat for solving the problem of corrosion resistance, and when the ball valve is closed, the ball valve drives a valve rod through a 90-degree rotating handle to rotate a spherical stainless steel valve element by 90 degrees, so that two through holes on the spherical stainless steel valve element are turned to the side sealing seat by 90 degrees, and then the inside medium is closed to circulate. Sealing is realized by a PTFE two-half full-pack sealing seat.

The structure has the defects that when the ball valve is closed, a medium existing in a section of through hole on the spherical stainless steel valve core can be intercepted, so that the medium is retained in the through hole of the spherical stainless steel valve core and cannot be discharged instantly; when the ball valve is opened again, the trapped medium can flow into the pipe again, which is not allowed in some sanitary applications, and the trapped medium risks deterioration and contamination of the pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a two-half type corrosion-resistant ball valve with a flow guide pipe, which aims to solve the problem of medium residue in the ball valve.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a take two half formula corrosion-resistant ball valves of honeycomb duct, including spherical stainless steel case, a valve body, ring type seal, the valve body clamp, the valve body includes two seal receptacle, it is fixed through the valve body clamp to merge between two seal receptacle, seal and constitute the inside valve body that is spherical cavity through ring type seal between two seal receptacle, the tip that spherical stainless steel case was kept away from to two seal receptacle is the medium entry and the medium export of valve body respectively, spherical stainless steel case is whole to be spherical, open at the middle part of spherical stainless steel case has the through-hole, spherical stainless steel case can be at the spherical cavity internal rotation of valve body, it has the guiding gutter to have the inboard of a seal receptacle to open at least, it has the water conservancy diversion hole to open on the guiding gutter, the water conservancy diversion hole runs through the seal receptacle and is linked together with outside pipe fitting.

The through hole of the spherical stainless steel valve core is communicated or closed with the medium inlet and the medium outlet by rotating the spherical stainless steel valve core, so that the ball valve is opened and closed, residual medium intercepted in the valve body in a closed state enters the diversion trench, and is discharged out of the valve body through the diversion hole.

Further, the valve comprises a handle, a valve rod sealing ring and a valve body nut, wherein one end of the valve rod penetrates through the handle, the valve body hoop and the sealing seat and then is fixedly connected with the spherical stainless steel valve core, the contact part of the valve rod and the sealing seat is sealed through the valve rod sealing ring, and the other end of the valve rod is fixedly connected with the handle through the valve body nut.

Furthermore, the annular sealing ring and the valve rod sealing ring are of an integrated connecting structure, the annular sealing ring is sleeved outside the spherical stainless steel valve core, and the valve rod sealing ring is sleeved outside the valve rod.

Further, the inner wall of the sealing seat is made of PTFE (polytetrafluoroethylene).

Furthermore, the medium inlet and the medium outlet are welded with flange heads.

Further, still include blowdown steel tube head, the both ends of blowdown steel tube head are provided with second spiral shell head and first spiral shell head respectively, first spiral shell head and internal thread plug cap threaded connection, second spiral shell head and water conservancy diversion hole threaded connection.

Further, the second screw head and the first screw head are both of a hollow structure, the hollow cavity of the second screw head is the same as the caliber of the flow guide hole, and the hollow cavity of the first screw head is the same as the inner diameter of the drainage steel pipe head.

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

1. the utility model discloses a change the structure of PTFE two half full packet of seal receptacle and two half valve bodies, set up the guiding gutter on every half seal receptacle and valve body to set up water conservancy diversion hole to ball valve outside bottom the guiding gutter, water conservancy diversion hole and the outside circular nonrust steel pipe UNICOM of ball valve, thereby can discharge hydrops immediately and be detained, effectively solve the secondary pollution risk.

2. Circular stainless steel pipe and ball valve are connected with welding or threaded connection, and the other end export is taken the external screw thread, and the ball valve is usable internal thread blanking cap screw up sealed when not, and the area is when the ball valve is closed, and the through-hole both ends of spherical stainless steel case are rotatory to guiding gutter initial position promptly, and the medium of holding back in the through-hole passes through the guiding gutter and independently discharges the ball valve outside, and the ball valve is when opening and closing, and the PTFE two halves formula that has the guiding gutter wraps the seal receptacle entirely and forms the contact surface full-sealed with spherical stainless steel case all the time, avoids the seepage.

3. The integrated sealing element is adopted, the installation is simpler and more convenient, the PTFE material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, the corrosion resistance is realized, and the service life of the ball valve is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a two-half type corrosion-resistant ball valve with a flow guide pipe (when closed) according to the present invention;

FIG. 2 is a schematic cross-sectional view of a two-half type corrosion-resistant ball valve with a flow guide pipe according to the present invention (when opened);

FIG. 3 is a schematic view of the handle of the present invention;

fig. 4 is a schematic structural view of a drainage steel pipe head.

In the figure: 1. a valve body nut; 2. a valve stem; 31. an annular seal ring; 32. a valve stem seal ring; 4. a diversion trench; 41. a flow guide hole; 5. a spherical stainless steel valve core; 51. a through hole; 6. a sealing seat; 7. a handle; 8. a flange head; 9. a valve body; 10. a valve body clamp; 11. a blowdown steel pipe head; 12. an internal thread plugging cap; 13. a first screw head; 14. a second screw head.

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 a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a two-half type corrosion-resistant ball valve with a flow guide tube comprises a spherical stainless steel valve core 5 and a valve body 9, annular seal 31, valve body clamp 10, valve body 9 includes two seal receptacle 6, it is fixed through valve body clamp 10 to merge between two seal receptacle 6, it is sealed and constitutes inside valve body 9 that is spherical cavity through annular seal 31 between two seal receptacle 6, the tip that spherical stainless steel case 5 was kept away from to two seal receptacle 6 is the medium entry and the medium export of valve body 9 respectively, spherical stainless steel case 5 wholly is spherical, open at the middle part of spherical stainless steel case 5 has through-hole 51, spherical stainless steel case 5 can be at the spherical cavity internal rotation of valve body 9, it has guiding gutter 4 to have opened in the inboard of at least one seal receptacle 6, it has water conservancy diversion hole 41 to open on guiding gutter 4, water conservancy diversion hole 41 runs through seal receptacle 6 and is linked together with outside pipe fitting.

Further, still include handle 7, valve rod 2, valve rod sealing washer 32, valve body nut 1, the one end of valve rod 2 is passed behind handle 7, valve body clamp 10, the seal receptacle 6 with 5 fixed connection of spherical stainless steel case, valve rod 2 and the 6 contact site of seal receptacle pass through valve rod sealing washer 32 and seal, the other end of valve rod 2 passes through

valve body nut

1 and 7 fixed connection of handle.

Further, the annular sealing ring 31 and the valve rod sealing ring 32 are of an integrated connection structure, the annular sealing ring 31 is sleeved outside the spherical stainless steel valve core 5, and the valve rod sealing ring 32 is sleeved outside the valve rod 2.

Further, the medium inlet and the medium outlet are welded with flange heads 8.

Further, still include blowdown steel tube head 11, the both ends of blowdown steel tube head 11 are provided with second spiral shell head 14 and first spiral shell head 13 respectively, first spiral shell head 13 and internal thread plug cap 12 threaded connection, second spiral shell head 14 and water conservancy diversion hole 41 threaded connection.

Further, the second screw head 14 and the first screw head 13 are both set to be hollow structures, the hollow cavity of the second screw head 14 is the same as the aperture of the diversion hole 41, and the hollow cavity of the first screw head 13 is the same as the inner diameter of the drainage steel pipe head 11.

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

the utility model changes the structure of the PTFE two-half full-packaging sealing seat and the two-half valve body, the sealing seat and the valve body on each half are provided with the diversion trench, the bottom of the diversion trench is provided with the diversion hole to the outside of the ball valve, and the diversion hole is communicated with the round stainless steel pipe outside the ball valve, thereby immediately discharging accumulated liquid and detention, and effectively solving the risk of secondary pollution.

Circular stainless steel pipe and ball valve are connected with welding or threaded connection, and the other end export is taken the external screw thread, and the ball valve is usable internal thread blanking cap screw up sealed when not, and the area is when the ball valve is closed, and the through-hole both ends of spherical stainless steel case are rotatory to guiding gutter initial position promptly, and the medium of holding back in the through-hole passes through the guiding gutter and independently discharges the ball valve outside, and the ball valve is when opening and closing, and the PTFE two halves formula that has the guiding gutter wraps the seal receptacle entirely and forms the contact surface full-sealed with spherical stainless steel case all the time, avoids the seepage.

The integrated sealing element is adopted, the installation is simpler and more convenient, the PTFE material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, the corrosion resistance is realized, and the service life of the ball valve is prolonged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a take corrosion-resistant ball valve of two halves formula of honeycomb duct which characterized in that: including spherical stainless steel case, the valve body, the ring type seal circle, the valve body clamp, the valve body includes two seal receptacle, it is fixed through the valve body clamp to merge between two seal receptacle, seal and constitute the inside valve body that is spherical cavity through the ring type seal circle between two seal receptacle, the tip that spherical stainless steel case was kept away from to two seal receptacle is the medium entry and the medium export of valve body respectively, spherical stainless steel case is whole to be spherical, open at the middle part of spherical stainless steel case has the through-hole, spherical stainless steel case can be at the spherical cavity internal rotation of valve body, it has the guiding gutter to have the inboard of a seal receptacle to open at least, it has the guiding hole to open on the guiding gutter, the guiding hole runs through the seal receptacle and is linked together with outside pipe fitting.

2. The two-half corrosion-resistant ball valve with the flow guide pipe according to claim 1, wherein: the valve comprises a valve body clamp, a sealing seat, a spherical stainless steel valve element, a valve rod, a valve body nut, a valve rod nut and a valve body nut, wherein one end of the valve rod penetrates through the handle, the valve body clamp and the sealing seat and then is fixedly connected with the spherical stainless steel valve element, the contact part of the valve rod and the sealing seat is sealed through the valve rod sealing ring, and the other end of the valve rod is fixedly connected with the handle through the valve body nut.

3. The two-half corrosion-resistant ball valve with the flow guide pipe according to claim 2, wherein: the annular sealing ring and the valve rod sealing ring are of an integrated connecting structure, the annular sealing ring is sleeved outside the spherical stainless steel valve core, and the valve rod sealing ring is sleeved outside the valve rod.

4. The two-half corrosion-resistant ball valve with the flow guide pipe according to claim 1, wherein: the inner wall of the sealing seat is made of PTFE material.

5. The two-half corrosion-resistant ball valve with the flow guide pipe according to claim 1, wherein: and the medium inlet and the medium outlet are both welded with flange heads.

6. The two-half corrosion-resistant ball valve with the flow guide pipe according to claim 1, wherein: still include blowdown steel tube head, the both ends of blowdown steel tube head are provided with second spiral shell head and first spiral shell head respectively, first spiral shell head and internal thread plug cap threaded connection, second spiral shell head and water conservancy diversion hole threaded connection.

7. The two-half corrosion-resistant ball valve with the flow guide pipe according to claim 6, wherein: the second screw head and the first screw head are both of a hollow structure, the hollow cavity of the second screw head is the same as the caliber of the flow guide hole, and the hollow cavity of the first screw head is the same as the inner diameter of the drainage steel pipe head.