The pull-type vacuum gate valve of Two-way side
Technical field
The present invention relates to the power metallurgy equipment field, is a kind of permanent-magnet rare-earth NdFeB alloy vacuum multicell continuous fritting furnace and hydrogen broken furnace with the pull-type vacuum gate valve of vertical large scale rectangle valve port Two-way side.
Background technique
Powder metallurgy vacuum sintering furnace and hydrogen broken furnace are energy consumption rich anies influential family in industrial production, an urgent demand along with world industry production energy-saving and emission-reduction, have the conforming multicell continuous vacuum sintering furnace of good energy-saving effect and product performance and hydrogen broken furnace to present huge advantage, push-pull valve has played vital effect for the reliability of multicell continuous fritting furnace and hydrogen broken furnace.
The FHH-120 multicell continuous vacuum heat processing furnace that certain company in 2006 produces has adopted the push-pull valve structure of rigid water-cooled pipe, and utility model patent CN 202001647 U novel vacuum continuous furnace push-pull valve is to the in addition patent protection of the rigid material of water cooling tube.There is following problem in existing vacuum continuous furnace push-pull valve: 1, only have a valve plate in valve housing, single-side sealing; 2, cylinder is adopted in valve plate locking, and coupling mechanism force is little, and the valve plate sealing is poor, can not be used for large scale valve port isolating seal; 3, rigidity cooling water inlet/outlet pipe is not forced linear protection in the valve body outside, and valve housing inside does not use the flexible metal bellows to solve the relative movement of the cooling water inlet/outlet pipe assembly of valve plate and rigidity; 4, valve plate adopts and moves up and down the formula structure, and maintenance is inconvenient.
Summary of the invention
For above shortcomings part in prior art, the technical problem that the present invention solves is to provide a kind of Two-way side pull-type vacuum gate valve.
The present invention adopts following technological scheme:
The pull-type vacuum gate valve of a kind of Two-way side, comprise valve housing, cylinder, pneumohydraulic pressure-cylinder, valve plate, valve plate traveling gear, rigidity cooling water inlet/outlet pipe assembly, wherein, the symmetrical both sides of valve housing are respectively arranged with blind flange, and outside a side blind flange, top is provided with cylinder and rigidity turnover water-cooling tube assembly; Be provided with the water-cooled valve plate parallel with valve housing other both sides in valve housing, valve plate is hung in the walking of valve housing internal upper part by the valve plate traveling gear, the cylinder column cylinder head of valve plate traveling gear and outer inside casing partly is rigidly connected, and valve plate bottom is provided with the pulley guide track; The water-cooled pipe joint of valve plate is connected with rigidity turnover cooling water pipe fitting, and pneumohydraulic pressure-cylinder is connected with valve plate, is used for the locking valve plate.
The water-cooled pipe joint of valve plate is connected by the flexible metal bellows with rigidity turnover cooling water pipe fitting.
Described valve plate is two, and outside valve housing, the both sides parallel with valve plate respectively are provided with two row pneumohydraulic pressure-cylinders.
Described valve plate traveling gear comprises the track that is arranged at upper end in valve housing, sheave block and the pulley plate of winning in succession, and described sheave block is placed in orbit, and sheave block hangs valve plate in orbit by the pulley plate of winning in succession.
The valve housing outside is provided with linear rail, rigidity cooling water inlet/outlet pipe assembly is placed on linear rail, guarantee the straightness accuracy walking of rigidity cooling water inlet/outlet pipe, rigidity cooling water inlet/outlet pipe assembly and cylinder cylinder head partly are rigidly connected in valve housing, keep moving together relative to static by yoke plate with cylinder column.
The corresponding valve port side of valve plate is provided with heat screen.
The present invention has following advantage and beneficial effect:
The present invention adopts pneumohydraulic pressure-cylinder locking valve plate, and pressure is large, and each valve plate has a plurality of gas-liquid pressure-boostings
Cylinder promotes, and valve plate is stressed evenly, guarantees oversize rectangle valve port valve plate sealability.
The present invention adopts rigidity cooling water inlet/outlet pipe assembly interlock together with cylinder traction valve plate, and cooling water advances
Go out pipe fitting linear rail is housed outside valve housing, guarantee rigidity water-cooling tube Moving linearity, in valve housing, rigidity cooling water inlet/outlet pipe assembly and cylinder column cylinder head partly are rigidly connected, be connected by the flexible metal bellows with the valve plate water-cooling joint, when closing, valve puts in place, when valve plate was locked by pneumohydraulic pressure-cylinder, the cooling water inlet/outlet pipe assembly of valve plate and rigidity had relative movement, and this moment, flexible metal bellows Placement solved the insecure problem of the water-stop that is rigidly connected.
Push-pull valve of the present invention is applied to oversize rectangle valve port, makes the multicell continuous sintering of mass production
Stove and hydrogen broken furnace can safe and effectively move, and automation degree of equipment is high, and good product performance is saved equipment investment, particularly greatly reduces energy consumption.
Description of drawings
Fig. 1 is the structural representation of the pull-type vacuum gate valve of a kind of Two-way side provided by the invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the valve plate traveling gear structural representation of Fig. 1;
Sequence number in figure: 1, valve housing; 2, cylinder; 3, pneumohydraulic pressure-cylinder; 4, valve plate; 5,
Vacuum-pumping pipeline; 6, O-ring seal; 7, guide track; 8, the pulley plate of winning in succession; 9, sheave block; 10, track; 11, linear rail; 12, rigidity cooling water inlet/outlet pipe assembly; 13, metal bellows; 14, blind flange; 15, heat screen; 16, yoke plate; 17, loading line.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
The invention provides the pull-type vacuum gate valve of a kind of Two-way side, as shown in Fig. 1 ~ 3, comprise valve housing 1, cylinder 2, pneumohydraulic pressure-cylinder 3, valve plate 4, valve plate traveling gear, rigidity cooling water inlet/outlet pipe assembly 12, wherein, the corresponding both sides of valve housing 1 are respectively arranged with blind flange, and side blind flange 14 an outer top is provided with cylinder 2 and rigidity turnover water-cooling tube assembly 12; Be provided with the valve plate parallel with other both sides 4 in valve housing 1, valve plate 4 is hung in the valve housing internal upper part by the valve plate traveling gear, and the cylinder column cylinder head of valve plate traveling gear and outer inside casing 2 partly is rigidly connected, and valve plate bottom is provided with pulley guide track 7; The water-cooled pipe joint of valve plate 4 is connected with rigidity turnover cooling water pipe fitting 12.
The water-cooled pipe joint of valve plate 4 is connected by flexible metal bellows 13 with rigidity turnover cooling water pipe fitting 12, and valve plate 4 is two, and outside valve housing, the both sides parallel with valve plate respectively are provided with two row pneumohydraulic pressure-cylinders 3, and pneumohydraulic pressure-cylinder 3 is connected with valve plate 4, is used for the locking valve plate.
The valve plate traveling gear comprises the track 10 that is arranged at the valve housing upper end, sheave block 9 and the pulley plate 8 of winning in succession, and sheave block 9 is placed on track 10, and sheave block 9 is hung in valve plate 4 on track 10 by pulley connecting plate 8, realizes slip in orbit.
Valve housing 1 outside is provided with linear rail 11, and rigidity cooling water inlet/outlet pipe assembly 12 is placed in straight line and leads
On rail 11, guarantee that the straightness accuracy of rigidity cooling water inlet/outlet pipe 12 is advanced, partly be rigidly connected at valve housing internal rigid cooling water inlet/outlet pipe assembly 12 and cylinder cylinder head, keep moving together relative to static by yoke plate 16 with the cylinder column of cylinder.The corresponding valve port side of valve plate is provided with heat screen 15.
As shown in Figure 1, valve plate 4 of the present invention is two and is arranged in valve housing 1, and valve can be realized two way sealed, and valve housing 1 inside is provided with find time pipeline 5 and loading line 17; Be connected with vacuum system and can vacuumize by the pipeline 5 of finding time, loading line 17 connects inert gas piping can filling with inert gas.
As shown in Figure 2, push-pull valve of the present invention, locking pneumohydraulic pressure-cylinder 3 pressure of valve plate 4 are large, each valve plate is promoted by a plurality of pneumohydraulic pressure-cylinders 3, guarantees that valve plate 4 is stressed evenly, and valve plate 4 is provided with O-ring seal 6, the decrement of O-ring seal 6 is large, guarantees large scale valve port valve plate sealability.
As shown in Figure 1, rigidity cooling water inlet/outlet pipe assembly 12 is provided with linear rail 11 in valve housing 1 outside, guarantees the Moving linearity of water pipe; In valve housing 1 inside, rigidity cooling water inlet/outlet pipe assembly 12 is rigidly connected by yoke plate 16 with cylinder 2 cylinder head parts, flexibly connects by metal bellows 13 with valve plate 4 water-cooling joints; Put in place when valve closes, valve plate 4 is during by pneumohydraulic pressure-cylinder 3 locking, and valve plate 4 has relative movement with the cooling water inlet/outlet pipe assembly 12 of rigidity, and this moment, metal bellows 13 flexible connection modes solved the water-stop unreliable ground problem that is rigidly connected.
As shown in Figure 3, valve plate 4 tops are provided with the pulley plate 8 of winning in succession and are fixed on same sheave block 9, sheave block 9 is lifted on the track 10 of valve housing 1 internal upper part, valve housing 1 inner bottom part has guide track 7 devices, cylinder 3 propelling sheave groups 9 move on track 10, drive valve plate 4 displacements, valve housing 1 one sides have blind flange 14, and during maintenance, valve plate 4 can shift out from valve housing 1 side.
Can find out by above-described embodiment, only adopting rigidity cooling water inlet/outlet pipe assembly is the reliability that can not guarantee the water cooled seal of push-pull valve.This professional those of ordinary skill should be able to be understood essence of the present invention, and recognizes that concrete implementation detail of the present invention can make such as the multiple variations such as push-pull valve that expand to single-side sealing in the rights protection scope.