阅读说明：本技术 带加热功能的双密封圈偏心半球阀及系统、方法 (Double-seal-ring eccentric half ball valve with heating function, system and method ) 是由 蒋文才 慕学臣 武向前 于乃云 蒋镇阳 刘少龙 于 2020-07-24 设计创作，主要内容包括：本发明涉及带加热功能的双密封圈偏心半球阀及系统、方法,其包括阀体件(1)；在阀体件(1)中具有阀体内腔(4)；在阀体内腔(4)两侧壁上具有同轴设置的头端横向通孔(2)及尾端横向通孔(3)；在阀体内腔(4)顶部具有纵向密封阀孔(5),用于与对接设备(7)的止口连接；在纵向密封阀孔(5)上具有双密封圈(6),用于与纵向密封阀孔(5)密封接触；本发明设计合理、结构紧凑且使用方便。(The invention relates to a double-seal-ring eccentric half-ball valve with a heating function, a system and a method, comprising a valve body (1); a valve body inner cavity (4) is arranged in the valve body piece (1); two side walls of the valve body inner cavity (4) are provided with a head end transverse through hole (2) and a tail end transverse through hole (3) which are coaxially arranged; the top of the valve body inner cavity (4) is provided with a longitudinal sealing valve hole (5) which is used for being connected with a spigot of a butt joint device (7); a double sealing ring (6) is arranged on the longitudinal sealing valve hole (5) and is used for being in sealing contact with the longitudinal sealing valve hole (5); the invention has reasonable design, compact structure and convenient use.)

1. The utility model provides a take eccentric hemisphere valve of two sealing washers of heating function which characterized in that: comprises a valve body member (1); a valve body inner cavity (4) is arranged in the valve body piece (1); two side walls of the valve body inner cavity (4) are provided with a head end transverse through hole (2) and a tail end transverse through hole (3) which are coaxially arranged; the top of the valve body inner cavity (4) is provided with a longitudinal sealing valve hole (5) which is used for connecting with a spigot of a butt joint device (7).

2. The double-seal-ring eccentric half-ball valve with the heating function as claimed in claim 1, wherein: (ii) a

A double sealing ring (6) is arranged on the longitudinal sealing valve hole (5) and is used for being in sealing contact with the longitudinal sealing valve hole (5);

a valve body shell (9) is arranged on the outer side of the head end transverse through hole (2), a valve rod head shaft (10) is arranged in the head end transverse through hole (2), and a driving part (8) in transmission connection with the valve rod head shaft (10) is arranged on the valve body shell (9); the inner end part of a valve rod head shaft (10) is exposed in the valve body inner cavity (4), the upper key of the inner end part is connected with a valve plate head sleeve (11),

a valve tail shaft (13) is rotatably arranged on the transverse through hole (3) at the tail end, an inner end key of the valve tail shaft (13) is connected with a valve plate tail sleeve (15), the valve tail shaft (13) and a valve plate head sleeve (11) are eccentrically connected with the root of a valve plate bent arm (12),

a valve tail cover (14) is arranged on the valve body piece (1); a valve plug (16) is connected between the cantilever ends of the valve plate bent arms (12); the longitudinal center line A-A of the longitudinal sealing valve hole (5) has an eccentricity e relative to the longitudinal center line B-B of the valve rod head shaft (10);

a valve plug (16) is driven to swing in the valve body inner cavity (4) by a valve rod head shaft (10), and the valve plug is provided with a sealing station (18);

the valve plug piece (16) is provided with a far end (17) of a sealing surface, when the valve plug piece (16) is sealed in a sealing station (18), the sealing contact point of the far end (17) of the sealing surface and the longitudinal sealing valve hole (5) is D, and when the valve plug piece (16) leaves the sealing station (18) and is completely opened, the far end (17) of the sealing surface is positioned at the F point and is separated from the longitudinal sealing valve hole (5).

3. The double-seal-ring eccentric half-ball valve with the heating function as claimed in claim 1, wherein: the valve rod head shaft (10) drives the valve plug piece (16) to swing in the valve body inner cavity (4), and an air drying station (19), a cleaning station (20) and/or a cleaning station (21) are/is further arranged in the valve body inner cavity (4).

4. The double-seal-ring eccentric half-ball valve with the heating function as claimed in claim 3, wherein: in the air drying station (19), a cleaning air blowing nozzle (33) is arranged on the valve body member (1) and used for blowing and drying the outer surface of the valve plug member (16) positioned in the station;

at the cleaning station (21), a cleaning water nozzle (38) is provided on the valve body member (1) for spraying water to the outer surface of the valve plug member (16) at the station.

5. The double-seal-ring eccentric half-ball valve with the heating function as claimed in claim 3, wherein: the valve rod head shaft (10) is a hollow shaft;

in the cleaning station (20), a central hollow rotating shaft (39) is inserted in the valve rod head shaft (10), a central air suction pipeline (40) is arranged in the central hollow rotating shaft (39), a central swing driving gear (41) is arranged at the outer end of the central hollow rotating shaft (39),

a central meshing bevel gear set (42) is arranged at the inner end part of the central hollow rotating shaft (39), the end part of the valve rod head shaft (10) is connected with a central connecting frame body (43) positioned at the center of the inner cavity (4) of the valve body, the root part of a central rotating swing arm (44) is longitudinally and rotatably arranged on the central connecting frame body (43), the central rotating swing arm (44) is arranged in an L shape, a central direction-changing valve seat (45) is arranged in the central connecting frame body (43), and a central transverse adapter (46) and a central longitudinal adapter (47) are respectively arranged on the central direction-changing valve seat (45);

the central transverse adapter (46) is connected with the central air suction pipeline (40);

a negative pressure air suction channel (48) is arranged in the central rotary swing arm (44), and the negative pressure air suction channel (48) is rotationally connected with the central longitudinal adapter (47);

an arc-shaped profiling roller (49) is arranged at the end part of the cross arm of the central rotary swing arm (44), and a profiling air suction nozzle (50) is arranged on the profiling roller (49); a central negative pressure air suction nozzle (51) is arranged at the end part of the central air suction pipeline (40) to be connected with a negative pressure source;

the cross arm of the central rotating swing arm (44) is driven by an elastic piece to be arranged in a telescopic way.

6. The double-seal-ring eccentric half-ball valve with the heating function as claimed in claim 1, wherein: a heating cavity (22) is arranged in the valve plug piece (16), and a central flow partition plate (27), a plurality of inner flow partition plates (24) and a plurality of outer flow partition plates (25) are distributed in the heating cavity (22);

the central flow partition plate (27) divides the heating cavity (22) into two chambers, a transition channel (26) is arranged between the central flow partition plate (27) and the heating cavity (22), the inner flow partition plates (24) are distributed on two sides of the central flow partition plate (27), and the root of the outer flow partition plate (25) is connected with the inner wall of the heating cavity (22);

the inner flow baffles (24) and the outer flow baffles (25) are arranged in a staggered manner, so that a serpentine channel is formed in each chamber, and the serpentine channels on the two sides are communicated through a transition channel (26);

a heating inlet (23) and a heating outlet (29) are respectively arranged on the valve tail shaft (13);

one of the heating inlet (23) and the heating outlet (29) is positioned at the center and the other is eccentrically arranged on the valve tail shaft (13);

a heating inlet (23), a serpentine channel, a transition channel (26) and a heating outlet (29) are communicated to form a heat flow channel (28);

the end of the valve tail shaft (13) is connected with a heat flow rotating seat (52), and a heat flow outer fixing sleeve (53) is sleeved on the heat flow rotating seat (52); a heat flow central hole (54) is arranged at the center of the heat flow rotating base (52), and a heat flow L channel (55) is eccentrically arranged on the heat flow rotating base (52); the heat flow external fixing sleeve (53) is provided with a heat flow ring groove (56);

when the heating outlet (29) is eccentric and the heating inlet (23) is located at the center,

the heat flow central hole (54) is communicated with the heating inlet (23), and the axial passage of the heat flow L channel (55) is communicated with the heating outlet (29); the heat flow outer fixing sleeve (53) is provided with a heat flow outer discharge port (57) communicated with a radial channel of the heat flow L channel (55).

7. The double-seal-ring eccentric half-ball valve with the heating function as claimed in claim 1, wherein: a material blowing ring groove (31) and a sealing and combining surface ring groove (36) are annularly arranged on the valve body piece (1) of the longitudinal sealing valve hole (5); a material blowing nozzle (32) is distributed on the material blowing ring groove (31) and used for blowing air into the valve body inner cavity (4), and a material blowing gas inlet (30) is arranged on the valve body piece (1) and connected with the material blowing ring groove (31);

a sealing contact blowing nozzle (37) is distributed on the sealing combination surface ring groove (36) and used for blowing air to the surface of the valve plug piece (16), and a sealing diversion air duct (35) is arranged on the valve body piece (1) and connected with the sealing combination surface ring groove (36); a sealing surface sweeping gas inlet (34) is arranged on the valve body part (1) and connected with a sealing diversion air duct (35);

the outlet of the sealing contact blow nozzle (37) is arranged between the double sealing rings (6).

8. A double-seal ring eccentric hemisphere system is characterized in that: the double-sealing-ring eccentric half-ball valve with the heating function comprises the double-sealing-ring eccentric half-ball valve with the heating function in claim 1.

9. A cleaning method of a double-seal-ring eccentric half-ball valve with a heating function is characterized by comprising the following steps: the method comprises the following steps of (1) providing a double-sealing-ring eccentric half ball valve with a heating function;

s1, in the cleaning station (21), the cleaning water nozzle (38) sprays water to the outer surface of the valve plug member (16) in the station;

s2, in the air drying station (19), the cleaning air blowing nozzle (33) carries out air blowing drying on the outer surface of the valve plug piece (16) positioned in the station;

s3, in a cleaning station (20), a central swing driving gear (41) drives a central rotary swing arm (44) to rotate around a longitudinal axis in a central connecting frame body (43) through a central hollow rotating shaft (39) and a central meshing bevel gear set (42) so that a profiling roller (49) is in rolling contact with a corresponding sealing ring, a cross arm elastically stretches and retracts through the central rotary swing arm (44) to compensate for eccentricity, air is sucked at the root of the sealing ring through a profiling air suction nozzle (50), and the cross arm is drawn out from a central air suction pipeline (40) through a negative pressure air suction channel (48), a central longitudinal adapter (47), a central direction changing valve seat (45) and a central transverse adapter (46);

at the same time of the steps S1-S3, the air flow blows from the material blowing nozzle (32) to the inner cavity (4) of the valve body through the material blowing gas inlet (30) and the material blowing ring groove (31);

when the valve plug member (16) leaves the longitudinal sealing valve hole (5), air flow blows into the valve plug member (16) through the sealing surface blowing air inlet (34), the sealing diversion air duct (35) and the sealing combination surface annular groove (36) and the sealing contact blowing nozzle (37).

Technical Field

The invention relates to a double-seal-ring eccentric half ball valve with a heating function, a system and a method.

Background

Current hemisphere valve does not all take heating function, can not obtain effectual being heated dry with the material of valve plug contact, is heated inhomogeneous easy adhesion on the valve plug surface, especially some great materials of viscosity ratio, leads to the difficult clearance in valve plug surface, influences the sealed effect of hemisphere valve.

Disclosure of Invention

The invention aims to solve the technical problem of providing a double-seal-ring eccentric half ball valve with a heating function, a system and a method. The inventor discovers that there is following problem in current valve body at the work, opens and shuts inconveniently, and sealing washer life is short, and prior art adopts the inflatable seal form, and the cost is with high costs, changes inconvenient needs whole dismantlement change, if chooseing for use the sealing washer sealed, then can crowd the sealing washer widely, influences sealing washer life, can extrude the sealing washer to influence sealing performance even. The invention adopts research to find that the problems can be solved by the eccentric half ball valve.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a double-seal-ring eccentric half-ball valve with a heating function comprises a valve body part; a valve body member having a valve body cavity therein; two side walls of the inner cavity of the valve body are provided with a head end transverse through hole and a tail end transverse through hole which are coaxially arranged; the top of the inner cavity of the valve body is provided with a longitudinal sealing valve hole which is used for being connected with a spigot of butt joint equipment;

the longitudinal sealing valve hole is provided with a double sealing ring which is used for being in sealing contact with the longitudinal sealing valve hole;

a valve body shell is arranged outside the head end transverse through hole, a valve rod head shaft is arranged in the head end transverse through hole, and a driving part in transmission connection with the valve rod head shaft is arranged on the valve body shell; the inner end part of the valve rod head shaft is exposed in the inner cavity of the valve body, the upper key of the inner end part is connected with a valve plate head sleeve,

a valve tail shaft is rotatably arranged in the transverse through hole at the tail end, an end key in the valve tail shaft is connected with a valve plate tail sleeve, the valve tail shaft and the valve plate head sleeve are eccentrically connected with the root of a valve plate bent arm,

a valve body member is provided with a valve tail cover; a valve plug is connected between the cantilever ends of the bent arms of the valve plate; the longitudinal centerline A-A of the longitudinal sealed valve bore has an eccentricity e with respect to the valve stem head shaft longitudinal centerline B-B;

the valve plug member is driven to swing in the inner cavity of the valve body by the valve rod head shaft, and the valve plug member is provided with a sealing station.

As a further improvement of the above technical solution:

when the valve plug piece is sealed in the sealing station, the sealing surface far end is D with the sealing contact point of the longitudinal sealing valve hole, and when the valve plug piece leaves the sealing station and is completely opened, the sealing surface far end is located at F point and is separated from the longitudinal sealing valve hole.

The valve rod head shaft drives the valve plug piece to swing in the inner cavity of the valve body, and an air drying station, a cleaning station and/or a cleaning station are/is further arranged in the inner cavity of the valve body.

At the air drying station, a cleaning blowing nozzle is arranged on the valve body part and used for blowing and drying the outer surface of the valve plug part at the station;

and at the cleaning station, a cleaning water spray nozzle is arranged on the valve body part and used for spraying water to the outer surface of the valve plug part positioned at the cleaning station.

The valve rod head shaft is a hollow shaft;

in the cleaning station, a central hollow rotating shaft is inserted in the valve rod head shaft, a central air suction pipeline is arranged in the central hollow rotating shaft, a central swing driving gear is arranged at the outer end of the central hollow rotating shaft,

a central meshing bevel gear set is arranged at the inner end part of the central hollow rotating shaft, a central connecting frame body positioned at the center of the inner cavity of the valve body is connected to the end part of the valve rod shaft, the root part of a central rotating swing arm is longitudinally and rotatably arranged on the central connecting frame body, the central rotating swing arm is arranged in an L shape, a central reversing valve seat is arranged in the central connecting frame body, and a central transverse adapter and a central longitudinal adapter are respectively arranged on the central reversing valve seat;

the central transverse adapter is connected with the central air suction pipeline;

a negative pressure air suction channel is arranged in the central rotary swing arm and is rotationally connected with the central longitudinal adapter;

an arc-shaped profiling roller is arranged at the end part of the cross arm of the central rotary swing arm, and a profiling air suction nozzle is arranged on the profiling roller; a central negative pressure air suction nozzle is arranged at the end part of the central air suction pipeline to be connected with a negative pressure source;

the center rotating swing arm cross arm is driven to stretch and retract through an elastic piece.

A heating cavity is arranged in the valve plug part, and a central flow partition plate, a plurality of inner flow partition plates and a plurality of outer flow partition plates are distributed in the heating cavity;

the central flow partition plate divides the heating cavity into two chambers, a transition channel is arranged between the central flow partition plate and the heating cavity, the inner flow partition plates are distributed on two sides of the central flow partition plate, and the root of the outer flow partition plate is connected with the inner wall of the heating cavity;

the inner flow baffles and the outer flow baffles are arranged in a staggered manner, so that a snake-shaped channel is formed in each chamber, and the snake-shaped channels on the two sides are communicated through a transition channel;

a heating inlet and a heating outlet are respectively arranged on the shaft at the tail part of the valve;

one of the heating inlet and the heating outlet is positioned at the center on the shaft at the tail part of the valve, and the other one is eccentrically arranged;

the heating inlet, the serpentine channel, the transition channel and the heating outlet are communicated to form a heat flow channel;

the shaft ends of the valve tail parts are connected with heat flow rotating seats, and heat flow outer fixing sleeves are sleeved on the heat flow rotating seats; a heat flow central hole is arranged at the center of the heat flow rotating base, and a heat flow L channel is eccentrically arranged on the heat flow rotating base; the heat flow outer fixing sleeve is provided with a heat flow ring groove;

when the heating outlet is eccentric and the heating inlet is centered,

the heat flow central hole is communicated with the heating inlet, and the axial channel of the heat flow L channel is communicated with the heating outlet; the heat flow outer fixing sleeve is provided with a heat flow outer discharge port communicated with a radial passage of the heat flow L channel.

A material blowing ring groove and a sealing joint surface ring groove are annularly arranged on a valve body part of the longitudinal sealing valve hole; a material blowing nozzle is distributed on the material blowing ring groove and used for blowing air into the inner cavity of the valve body, and a material blowing gas inlet is arranged on the valve body and connected with the material blowing ring groove;

a sealing contact blowing nozzle is distributed on the sealing combination surface ring groove and used for blowing air to the surface of the valve plug piece, and a sealing diversion air duct is arranged on the valve body piece and connected with the sealing combination surface ring groove; a sealing surface sweeping gas inlet is arranged on the valve body part and is connected with the sealing diversion air channel;

the outlet of the sealing contact mouthpiece is between the double sealing rings.

A double-sealing ring eccentric hemisphere system comprising the double-sealing ring eccentric hemisphere valve with a heating function according to claim 1.

A cleaning method of a double-sealing-ring eccentric half ball valve with a heating function comprises the following steps;

s1, in the cleaning station, the cleaning water spray nozzle sprays water to the outer surface of the valve plug piece positioned in the cleaning station;

s2, cleaning the blowing nozzle to blow and dry the outer surface of the valve plug member at the air drying station;

s3, in a cleaning station, a central swing driving gear drives a central rotary swing arm to rotate around a longitudinal axis in a central connecting frame body through a central hollow rotating shaft and a central meshing bevel gear set, so that a profiling roller is in rolling contact with a corresponding sealing ring, the cross arm of the central rotary swing arm elastically stretches to compensate eccentricity, the root of the sealing ring is sucked through a profiling air suction nozzle, and the sealing ring is drawn out through a negative pressure air suction channel, a central longitudinal adapter, a central direction changing valve seat, a central transverse adapter and a central air suction pipeline;

at the same time of the step S1-S3, the air flow blows the inner cavity of the valve body from the material blowing nozzle through the material blowing gas inlet and the material blowing ring groove;

when the valve plug part leaves the longitudinal sealing valve hole, air flow blows into the valve plug part through the sealing surface blowing gas inlet, the sealing diversion air duct and the sealing combination surface annular groove and the sealing contact blowing nozzle.

The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use. The double-sealing-ring sealing valve adopts a double-sealing-ring sealing design, the valve core is eccentrically designed, the sealing surface gas purging port is arranged, the sealing surface is purged, heating flow is arranged, the surface of the valve plug can be heated, the material purging port is also arranged, the material can be purged and stirred, the material is uniformly heated, and the heating efficiency and the quality of the material are improved.

The invention has the innovation points that:

1. the center of the rotating shaft of the valve plug deviates 20mm from the center of the valve body, and the extrusion force of the sealing ring is small.

2. The double-sealing ring is sealed, the sealing is stable and reliable, and the replacement is convenient and simple.

3. And a gas purging port is arranged for purging the sealing surface.

4. A heating flow channel is designed, and the valve plug has a heating function.

5. The cleaning nozzle is arranged, so that the whole half-ball valve can be cleaned on line.

Drawings

Fig. 1 is a schematic diagram of the use structure of the invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the heating channel structure of the present invention.

Fig. 4 is a schematic diagram of a modified structure of the present invention.

Fig. 5 is a schematic diagram of an improved structure of the invention.

Fig. 6 is a schematic view of a modified partial structure of the present invention.

Wherein: 1. a valve body member; 2. a head end transverse through hole; 3. a transverse through hole at the tail end; 4. an inner cavity of the valve body; 5. a longitudinally sealed valve bore; 6. double seal rings; 7. docking equipment; 8. a drive section; 9. a valve body housing; 10. a valve stem head shaft; 11. a valve plate head sleeve; 12. a valve plate bent arm; 13. a valve tail shaft; 14. a valve tail cover; 15. the tail part of the valve plate is sleeved; 16. a valve plug; 17. a seal face distal end; 18. sealing the station; 19. air-drying the station; 20. cleaning the station; 21. cleaning a station; 22. heating the cavity; 23. heating the inlet; 24. an inner baffle plate; 25. an outer cutoff plate; 26. a transition passage; 27. a central flow-separating plate; 28. a heat flow channel; 29. a heating outlet; 30. a material purge gas inlet; 31. a material blowing ring groove; 32. a material blowing nozzle; 33. cleaning the air blowing nozzle; 34. a sealing surface purge gas inlet; 35. sealing the diversion air duct; 36. sealing the junction surface ring groove; 37. a sealing contact mouthpiece; 38. cleaning the water spray nozzle; 39. a central hollow rotating shaft; 40. a central air intake duct; 41. a central swing drive gear; 42. a central meshing bevel gear set; 43. the center is connected with the frame body; 44. a central rotating swing arm; 45. a center direction-changing valve seat; 46. a central transverse adapter; 47. a central longitudinal adapter; 48. a negative pressure air suction channel; 49. profiling rollers; 50. a profiling air suction nozzle; 51. a central negative pressure air suction nozzle; 52. a heat flow rotating base; 53. fixing a heat flow outer sleeve; 54. a heat flux central bore; 55. a heat flux L channel; 56. a heat flow ring groove; 57. and a heat flow outlet.

Detailed Description

As shown in fig. 1-6, the double-seal ring eccentric half-ball valve with heating function of the present embodiment comprises a valve body member 1; a valve body inner cavity 4 is formed in the valve body 1; two side walls of the valve body inner cavity 4 are provided with a head end transverse through hole 2 and a tail end transverse through hole 3 which are coaxially arranged; the top of the inner cavity 4 of the valve body is provided with a longitudinal sealing valve hole 5 which is used for connecting with a spigot of a butt joint device 7;

a double sealing ring 6 is arranged on the longitudinal sealing valve hole 5 and is used for being in sealing contact with the longitudinal sealing valve hole 5;

a valve body shell 9 is arranged on the outer side of the head end transverse through hole 2, a valve rod head shaft 10 is arranged in the head end transverse through hole 2, and a driving part 8 in transmission connection with the valve rod head shaft 10 is arranged on the valve body shell 9; the inner end part of a valve rod head shaft 10 is exposed in the valve body inner cavity 4, the upper key of the inner end part is connected with a valve plate head sleeve 11, and the driving part 8 can be a rotary power source such as a motor, a motor or a cylinder.

A valve tail shaft 13 is rotatably arranged on the transverse through hole 3 at the tail end, a valve plate tail sleeve 15 is connected with the inner end key of the valve tail shaft 13, the valve tail shaft 13 and the valve plate head sleeve 11 are eccentrically connected with the root part of a valve plate bent arm 12,

a valve tail cover 14 is arranged on the valve body member 1; a valve plug 16 is connected between the cantilever ends of the valve plate bent arms 12; the longitudinal centerline A-A of the longitudinal sealed valve bore 5 has an eccentricity e with respect to the longitudinal centerline B-B of the valve stem head shaft 10;

the valve plug 16 is driven into oscillation in the valve body interior 4 by the valve spindle shaft 10, and has a sealing station 18.

The valve plug 16 has a distal sealing surface end 17, the distal sealing surface end 17 has a sealing contact point D with the longitudinal sealing valve opening 5 when the valve plug 16 is sealed in the sealing station 18, and the distal sealing surface end 17 is located at point F and is separated from the longitudinal sealing valve opening 5 when the valve plug 16 is fully opened after leaving the sealing station 18.

The valve stem head shaft 10 drives the valve plug 16 to swing in the valve body inner cavity 4, and an air drying station 19, a cleaning station 20 and/or a cleaning station 21 are/is further arranged in the valve body inner cavity 4. The valve plug 16 can only swing in one direction, and in the figure, the sealing station 18, the air drying station 19, the cleaning station 20 and the cleaning station 21 are arranged in sequence, and then the cleaning station 20, the air drying station 19 and the sealing station 18 are arranged in sequence.

In the air drying station 19, a cleaning air blowing nozzle 33 is arranged on the valve body member 1 and used for blowing and drying the outer surface of the valve plug member 16 positioned in the station;

at the cleaning station 21, a cleaning water jet nozzle 38 is provided on the valve body member 1 for spraying water onto the outer surface of the valve plug member 16 at that station.

The valve rod head shaft 10 is a hollow shaft;

in the cleaning station 20, a central hollow rotating shaft 39 is inserted in the valve stem head shaft 10, a central air suction pipeline 40 is arranged in the central hollow rotating shaft 39, a central swing driving gear 41 is arranged at the outer end of the central hollow rotating shaft 39,

a central meshing bevel gear group 42 is arranged at the inner end part of the central hollow rotating shaft 39, the end part of the valve rod head shaft 10 is connected with a central connecting frame body 43 positioned at the center of the inner cavity 4 of the valve body, the root part of a central rotating swing arm 44 is longitudinally and rotatably arranged on the central connecting frame body 43, the central rotating swing arm 44 is arranged in an L shape, a central direction-changing valve seat 45 is arranged in the central connecting frame body 43, and a central transverse adapter 46 and a central longitudinal adapter 47 are respectively arranged on the central direction-changing valve seat 45;

the central transverse adapter 46 is connected to the central air intake duct 40;

a negative pressure air suction channel 48 is arranged in the central rotary swing arm 44, and the negative pressure air suction channel 48 is rotatably connected with the central longitudinal joint 47;

an arc-shaped profiling roller 49 is arranged at the end part of the cross arm of the central rotary swing arm 44, and a profiling air suction nozzle 50 is arranged on the profiling roller 49; a central negative pressure air suction nozzle 51 is arranged at the end part of the central air suction pipeline 40 so as to be connected with a negative pressure source;

the cross arm of the central rotating swing arm 44 is driven by an elastic piece to be arranged in a telescopic way.

A heating cavity 22 is arranged in the valve plug 16, and a central flow partition plate 27, a plurality of inner flow partition plates 24 and a plurality of outer flow partition plates 25 are distributed in the heating cavity 22;

the central flow partition plate 27 divides the heating cavity 22 into two chambers, a transition channel 26 is arranged between the central flow partition plate 27 and the heating cavity 22, the inner flow partition plates 24 are distributed on two sides of the central flow partition plate 27, and the root of the outer flow partition plate 25 is connected with the inner wall of the heating cavity 22;

the inner and outer baffles 24 and 25 are staggered to form serpentine channels in each chamber, the serpentine channels on both sides communicating via a transition channel 26;

a heating inlet 23 and a heating outlet 29 are respectively arranged on the valve tail shaft 13;

one of the heating inlet 23 and the heating outlet 29 is located at the center, and the other is eccentrically located, on the valve tail shaft 13;

the heating inlet 23, the serpentine channel, the transition channel 26 and the heating outlet 29 are communicated to form a heating flow channel 28;

the ends of the valve tail shafts 13 are connected with heat flow rotating seats 52, and heat flow outer fixing sleeves 53 are sleeved on the heat flow rotating seats 52; a heat flow central hole 54 is arranged at the center of the heat flow rotating base 52, and a heat flow L channel 55 is eccentrically arranged on the heat flow rotating base 52; the heat flow external fixing sleeve 53 is provided with a heat flow ring groove 56;

when the heating outlet 29 is eccentric and the heating inlet 23 is located at the center,

the heat flux central hole 54 communicates with the heating inlet 23, the axial passage of the heat flux L channel 55 communicates with the heating outlet 29; the heat flow external fixation sleeve 53 is provided with a heat flow external outlet 57 communicated with the radial passage of the heat flow L channel 55.

A material blowing ring groove 31 and a sealing joint surface ring groove 36 are annularly arranged on the valve body part 1 of the longitudinal sealing valve hole 5; a material blowing nozzle 32 is distributed on the material blowing ring groove 31 and used for blowing air into the valve body inner cavity 4, and a material blowing gas inlet 30 connected with the material blowing ring groove 31 is arranged on the valve body member 1;

a sealing contact blowing nozzle 37 is distributed on the sealing combination surface annular groove 36 and used for blowing air to the surface of the valve plug piece 16, and a sealing diversion air duct 35 connected with the sealing combination surface annular groove 36 is arranged on the valve body piece 1; a sealing surface sweeping gas inlet 34 is arranged on the valve body part 1 and connected with a sealing diversion air duct 35;

the outlet of the sealing contact mouthpiece 37 is between the double sealing rings 6.

The double-sealing-ring eccentric hemisphere system of the present embodiment includes the double-sealing-ring eccentric hemisphere valve with a heating function of claim 1.

The method for cleaning the double-sealing-ring eccentric half ball valve with the heating function comprises the following steps;

s1, in the cleaning station 21, the cleaning water nozzle 38 sprays water to the outer surface of the valve plug member 16 in the station;

s2, in the air drying station 19, the cleaning blowing nozzle 33 blows and dries the outer surface of the valve plug piece 16 positioned in the station;

s3, in the cleaning station 20, the central swing driving gear 41 drives the central rotary swing arm 44 to rotate around the longitudinal axis line in the central connecting frame body 43 through the central hollow rotating shaft 39 and the central meshing bevel gear group 42, so that the profiling roller 49 is in rolling contact with the corresponding sealing ring, the cross arm elastically stretches through the central rotary swing arm 44 to compensate the eccentricity, the root of the sealing ring is sucked through the profiling air suction nozzle 50, and the air is drawn out through the negative pressure air suction channel 48, the central longitudinal adapter 47, the central direction changing valve seat 45, the central transverse adapter 46 and the central air suction pipeline 40;

at the same time of the steps S1-S3, the air flow blows from the material blowing nozzle 32 to the inner cavity 4 of the valve body through the material blowing gas inlet 30 and the material blowing ring groove 31;

when the valve plug member 16 leaves the longitudinal sealing valve hole 5, the air flow blows into the valve plug member 16 through the sealing surface purge gas inlet 34, the sealing diversion air duct 35 and the sealing combination surface ring groove 36 through the sealing contact blow nozzle 37.

As specific application, the pivot center of valve plug and the central skew e =20mm of valve body, the valve plug closes in-process just when closing totally fast, small angle contact extrusion sealing washer, thereby make the sealing washer receive less sealed extrusion force, can not cause the damage to the sealing washer, thereby improve sealed effect and life, the double sealing washer is sealed, make sealed more reliable, guarantee sealed gas tightness, be provided with gaseous runner that sweeps, can sweep the material dust of remaining on the sealed face of valve plug, sealed face's cleanness has been guaranteed.

Valve plug internally designed has the heating runner, can add hot drying to valve plug surface contact material, can improve the drying efficiency of material, also makes the difficult adhesion material in valve plug surface, guarantees the cleanliness on valve plug surface, is provided with the material and sweeps the runner, can carry out abundant stirring to the bottom material blowback in drying process to the material for the material is heated evenly, improves drying efficiency and quality.

The cleaning nozzles are further arranged on the two sides of the valve body, so that the whole hemispherical valve can be cleaned on line, and a sealing surface does not need to be cleaned manually.

The invention uses a valve body 1 as a carrier, a head end transverse through hole 2 and a tail end transverse through hole 3 realize support, a valve body inner cavity 4 facilitates the passing of materials, a longitudinal sealing valve hole 5 adopts a cambered valve core, a double sealing ring 6 ensures the cleaning reasonability and improves the sealing performance, a driving part 8 drives the valve core to eccentrically swing, a valve body shell 9 is a connecting part, a valve rod head shaft 10, a valve plate head sleeve 11, a valve plate bent arm 12, a valve tail part shaft 13, a valve tail part cover 14, a valve plate tail part sleeve 15 and a valve plug part 16 realize a valve core assembly, the track of a sealing surface far end 17 can limit the protection characteristic of the invention, the invention realizes sealing at a sealing station 18, reduces the existence of moisture at an air drying station 19, performs negative pressure air suction at a cleaning station 20, extracts cleaned impurities, ensures the cleanness of the valve core, performs clear water flushing at a cleaning station 21, heats a cavity 22 and heats an inlet, the central air suction pipeline 40 absorbs sundries existing at the installation position of the sealing ring through negative pressure to clean, and is similar to a dust collector, a central swinging driving gear 41, a central meshing bevel gear group 42, a central connecting frame body 43, a central rotating swing arm 44, a central valve seat 45 and a central transverse adapter 46 to realize the rotation and the diversion adsorption of an adsorption head, thereby the vertical adapter 47 of center realizes rotatory contact, profile modeling gyro wheel 49 and sealing washer rolling contact, after it contacts with the sealing washer, utilize the elasticity telescopic link to realize rolling contact all the time, realized profile modeling suction nozzle 50 and closely adsorbed, heat flow roating seat 52 has realized central output, fixed stay has been realized to the outer fixed cover 53 of heat flow to realized heat flow centre bore 54, heat flow outer row mouth 57 is linked with the outside, outer row mouth can be retrieved in other equipment realization circulations.

The present invention has been described in sufficient detail for clarity of disclosure and is not exhaustive of the prior art.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.