CN208204047U - A kind of angle valve - Google Patents

Abstract

The utility model provides a kind of angle valve, its valve seat that can solve existing conventional angle valve is to be mounted on inside valve chamber and compressed by sleeve, cause that part is more in valve chamber and design of part is more complex, accumulation impurity is easy in use process in valve chamber, influence the trafficability performance of valve, the problem of being also not easy to the installation and maintenance to parts such as valve seats.Including valve body, outlet flow component, valve body top is fixedly installed with valve deck, is vertically fitted with valve rod in valve deck；Spool is equipped in valve chamber, the upper end of spool and valve rod are affixed；The lower end of valve body offers the valve seat mounting hole being connected to valve chamber, and valve seat is inserted by the bottom of valve seat mounting hole and is passed through threaded fastener and the bottom surface of valve body is affixed, and vertical fluid channel is offered on valve seat, and the lower end of spool can be downwardly into and block fluid channel；Outlet flow component is located at the lower section of valve seat and affixed by the bottom surface of threaded fastener and valve body, and outlet flow component is equipped with outlet flow that is coaxial with fluid channel and being connected to.

Description

A kind of angle valve

Technical field

The utility model relates to valve field, specially a kind of angle valve.

Background technique

Angle valve is exactly angle stop valves, and valve flowing channel uses square, i.e. valve body import and valve outlet is straight in 90 ° Angle is now widely used shut-off valve.

Fig. 1 is conventional angle valve structural schematic diagram.It includes valve body 1 ' and valve deck 3 ', and valve inner is equipped with valve chamber 101 ', The inlet channel 102 ', outlet flow 801 ' and through-hole being connected to valve chamber are offered on valve body respectively, wherein inlet channel is in water Flat setting, outlet flow is coaxial with through-hole and is in be vertically arranged；Valve seat 6 ' and sleeve 20 ', valve are installed from the bottom to top in valve chamber Seat is connected to by fluid channel 601 ' thereon with outlet flow, is equipped with valve washer 21 ' between valve seat and valve body, sleeve and Valve seat is connected to valve chamber；The lower end of valve deck is inserted into through-hole, and valve deck is affixed by valve body bolt 22 ' and valve body and passes through valve deck Washer 23 ' and valve seal；Sleeve and valve seat are pushed down in the lower end of valve deck, squeeze valve washer, realize between valve seat and valve body Sealing；Be fitted with vertically arranged valve rod 4 ' in valve deck, valve rod upper end be pierced by valve deck and with valve deck dynamic sealing, the lower end of valve rod is solid It is connected to spool 5 ', by guide sleeve 18 ' and spool clearance fit, the lower end of spool can be downwardly into and block on valve seat valve deck Fluid channel.In use, carrying out linear motion up and down by driving device band ovable valve stem and spool, change between spool and valve seat Circulation area realize angle valve switch and flow adjusting.

Such conventional structure, valve seat are to be mounted on inside valve chamber and by sleeve compression, cause in valve chamber part more and Design of part is more complex, is easy to accumulation impurity in use process in valve chamber, influences the trafficability performance of valve, valve seat is mounted on valve Intracavitary portion is also not easy to installation and maintenance to parts such as valve seats.

Summary of the invention

In view of the above-mentioned problems, the utility model provides a kind of angle valve, the valve seat that can solve existing conventional angle valve is peace Inside the valve chamber and by sleeve compression, cause that part is more in valve chamber and design of part is more complex, valve chamber in use process It is inside easy to accumulation impurity, the problem of influencing the trafficability performance of valve, be also not easy to the installation and maintenance to parts such as valve seats, from And can guarantee the negotiability of valve, convenient for the installation and maintenance to valve seat.

Its technical solution is such that a kind of angle valve comprising valve body, the valve body is interior to be equipped with valve chamber, and lateral is opened Equipped with the inlet channel being connected to the valve chamber；The valve body top is fixedly installed with valve deck and the two contact surface seals, described Valve rod and dynamic sealing between the two are vertically fitted in valve deck；Be equipped with spool in the valve chamber, the upper end of the spool with it is described Valve rod is affixed, and the lower section of the spool is equipped with valve seat, offers vertical fluid channel, the lower end of the spool on the valve seat It can be downwardly into and block the fluid channel；It is characterized by: it further includes outlet flow component, the lower end of the valve body is opened Equipped with the valve seat mounting hole being connected to the valve chamber, the valve seat is inserted by the bottom of the valve seat mounting hole and to pass through screw thread tight The bottom surface of firmware and the valve body is affixed, and the contact surface of the valve seat and the valve body seals；The outlet flow component is located at The lower section of the valve seat is simultaneously affixed by the bottom surface of threaded fastener and the valve body, the outlet flow component and the valve seat Contact surface sealing, the outlet flow component is equipped with and the outlet flow that is connected to coaxial with the fluid channel.

It is further characterized by:

The outlet flow component includes reduced flange and bushing pipe, the T-shaped tubular structure of bushing pipe, the pipe of the bushing pipe Portion is downwardly into the inner cavity of the reduced flange, seals between the bushing pipe and the top surface of the reduced flange, the bushing pipe Pipeline forms the outlet flow；The reduced flange is affixed by the bottom surface of stud and nut and the valve body, the valve seat Bottom surface and the bushing pipe top surface between seal, venturi is collectively formed in the fluid channel of the valve seat and the outlet flow Pipeline.

The valve body is forging, and the valve seat, the spool and the bushing pipe are made of tungsten carbide material.

The top of the spool is equipped with fitted shaft, and the bottom surface of the valve rod offers axis hole, described in the fitted shaft insertion Axis hole and the two interference fit, are fixed between the fitted shaft and the valve rod by radial direction pin.

Hard alloy is all covered in the inlet channel of the valve body, the inner wall of the inner cavity of valve chamber and the reduced flange Layer.

The valve seat is in inverted T shaped tubular structure, and the valve seat mounting hole, the valve seat are inserted into the pipe portion cooperation of the valve seat Bottom surface on offer ladder counterbore, the valve seat passes through the hexagon socket head cap screw and the valve body that are installed in the ladder counterbore Bottom surface it is affixed.

Between the valve body and the valve deck, between the valve seat and the valve body, the bottom surface of the valve seat and the lining It is sealed by wound gasket between the top surface of pipe, between the bushing pipe and the top surface of the reduced flange.

The valve deck is extended type valve deck, is equipped with the vertical axis hole being connected to the valve chamber, the valve rod in the valve deck It is plugged in the vertical axis hole and the valve deck is stretched out in the upper end, between the top and the valve rod of the vertical axis hole under It is supreme to be sequentially installed with filler seat, filler, filler spacer, filler and gland, it is covered on the valve rod above the gland Equipped with pressing plate, the pressing plate is fixed on the valve deck and compresses the gland, and the lateral surface of the valve deck is circumferentially with along it Multi-layer heat dissipation piece.

The bottom of the vertical axis hole is equipped with guide sleeve, and the spool is inserted into the guide sleeve and the two gap is matched It closes, heap is welded with stellite layer on the inner sidewall of the guide sleeve.

Surface roughness Ra≤0.4 μm of the valve seat and the spool.

The beneficial effects of the utility model are:

The angle valve of the utility model opens up the valve seat mounting hole being connected to valve chamber in the lower end of valve body, by valve seat by valve The bottom of seat mounting hole is inserted into and passes through threaded fastener and the bottom surface of valve body is affixed, then independent out in the installation of the lower section of valve seat Mouth flow channel component, outlet flow component is affixed also by the bottom surface of threaded fastener and valve body, to make the peace installation and dismantling of valve seat Unload it is very convenient, also, since valve seat is mounted on outside valve body so that there is no odd parts other than spool in valve chamber, from And be not easy to accumulate impurity in valve chamber, the circulation of valve is more preferable.

Detailed description of the invention

Fig. 1 is the main sectional view of conventional angle valve；

Fig. 2 is the main sectional view of the angle valve of the utility model；

Fig. 3 is the enlarged drawing of a-quadrant in Fig. 2；

Fig. 4 is the enlarged drawing of B area in Fig. 2；

Fig. 5 is the enlarged drawing in the region C in Fig. 2；

Fig. 6 is the connection relationship diagram of spool and valve rod.

Appended drawing reference: 1- valve body；101- valve chamber；102- inlet channel；2- bolt；3- valve deck；301- cooling fin；4- valve Bar；5- spool；501- fitted shaft；6- valve seat；601- fluid channel；7- reduced flange；8- bushing pipe；801- outlet flow；9- spiral shell Column；10- nut；11- hexagon socket head cap screw；12- wound gasket；13- filler seat；14- filler；15- filler spacer；16- gland；17- Pressing plate；18- guide sleeve；19- stellite layer.

Specific embodiment

See Fig. 2 to Fig. 6, a kind of angle valve of the utility model comprising valve body 1 and outlet flow component are equipped in valve body 1 Valve chamber 101, lateral offer the inlet channel 102 being connected to valve chamber 101；1 top of valve body is fixedly installed with by bolt 2 Valve deck 3 and the two contact surface seal, and are vertically fitted with valve rod 4 and dynamic sealing between the two in valve deck 3；Valve is equipped in valve chamber 101 Core 5, the upper end of spool 5 and valve rod 4 are affixed；The lower end of valve body 1 offers the valve seat mounting hole being connected to valve chamber 101, valve seat 6 by The bottom of valve seat mounting hole be inserted into and pass through threaded fastener and valve body 1 bottom surface it is affixed, valve seat 6 and the contact surface of valve body 1 are close It seals, offers vertical fluid channel 601 on valve seat 6, the lower end of spool 5 can be downwardly into and block fluid channel 601；Outlet Flow channel component is located at the lower section of valve seat 6 and, outlet flow component and valve seat 6 affixed by the bottom surface of threaded fastener and valve body 1 Contact surface sealing, outlet flow component is equipped with and the outlet flow 801 that is connected to coaxial with fluid channel 601.Such as Fig. 3 institute Show, the lower end of spool is that rod-like structure tapered from top to bottom can block up fluid channel when it is fully inserted into fluid channel Extremely, when its only some insertion fluid channel, the tune that the circulation area between valve seat realizes the flow of angle valve can be changed Section.

See that Fig. 2, outlet flow component include reduced flange 7 and bushing pipe 8, the T-shaped tubular structure of bushing pipe 8, the pipe portion of bushing pipe 8 It is downwardly into the inner cavity of reduced flange 7, is sealed between bushing pipe 8 and the top surface of reduced flange 7, the pipeline of bushing pipe 8 forms outlet stream Road 801；Reduced flange 7 is affixed by stud 9 and nut 10 and the bottom surface of valve body 1, the top surface of the bottom surface of valve seat 6 and bushing pipe 8 it Between seal, venturi conduit is collectively formed in the fluid channel 601 of valve seat 6 and outlet flow 801.By forming venturi conduit knot Structure expands circulation area, can reduce fluid velocity, weakens fluid and washes away to valve seat and outlet flow, improves the anti-of valve Performance of flushing.Meanwhile this structure is also convenient for maintenance replacement bushing pipe, it is only necessary to dismantle spiral shell in addition to convenient for safeguarding and replacement valve seat Column and nut can once replace maintenance bushing pipe and valve seat, not need disintegration other parts part.

Preferably, valve body 1 is forging, by using forging, since it have passed through secondary operation hardening, dense structure, power Performance is more excellent, and compared with routine is using casting, intensity is higher；Valve seat 6, spool 5 and bushing pipe 8 are by tungsten carbide material It is made, can so promote the hardness of trim, further strengthen the flushing resistance of trim entirety.

Preferably, it when spool 5 is made of tungsten carbide material, due to itself and 4 welding difficulty of valve rod, can be used following solid Mode is connect, sees Fig. 6, the top of spool 5 is equipped with fitted shaft 501, and the bottom surface of valve rod 4 offers axis hole, and fitted shaft 501 is inserted into axis hole And the two is interference fitted, it is fixed by radial pin (being not shown in Fig. 6) between fitted shaft 501 and valve rod 4.When installation, first really The use temperature for determining valve, then heats up valve rod, so that the axis hole heat expansion on valve rod, is then inserted into axis for the fitted shaft of spool The two interference connection can be realized in hole after cooling.

Preferably, the inlet channel 102 of valve body 1, be all covered on the inner wall of the inner cavity of valve chamber 101 and reduced flange 7 it is hard Matter alloy-layer.It is designed in this way, hardness can be improved, further strengthen valve body, reduced flange flushing resistance.

Preferably, see that Fig. 3, valve seat 6 are in inverted T shaped tubular structure, the pipe portion cooperation insertion valve seat mounting hole of valve seat 6, valve seat 6 Bottom surface on offer ladder counterbore, valve seat 6 is solid by the bottom surface of the hexagon socket head cap screw 11 and valve body 1 that are installed in ladder counterbore It connects.By the way that ladder counterbore is arranged, hexagon socket head cap screw is installed in ladder counterbore, easily facilitates and realizes bottom surface of valve seat and bushing pipe top Contact and sealing cooperation between face.

Preferably, see Fig. 2-Fig. 4, between valve body 1 and valve deck 3, between valve seat 6 and valve body 1, the bottom surface of valve seat 6 and bushing pipe 8 Top surface between, sealed by wound gasket 12 between bushing pipe 8 and the top surface of reduced flange 7.Wherein, the bolt 2 on valve deck 3 will Valve deck 3 is pressed on valve body 1, squeezes wound gasket 12, realizes the sealing between valve body 1 and valve deck 3；Hexagon socket head cap screw 11 is by valve seat 6 are pressed on valve body 1, squeeze wound gasket 12, realize the sealing between valve seat 6 and valve body 1；Stud 9 and nut 10 press bushing pipe 8 Tightly on valve seat 6, and reduced flange 7 is made to compress bushing pipe 8, squeezes wound gasket 12, realize between bushing pipe 8 and valve seat 6, bushing pipe 8 with Sealing between reduced flange 7.It is sealed by using wound gasket, sealing effect is more preferable.

Preferably, see that Fig. 2 and Fig. 5, valve deck 3 are extended type valve deck, be equipped with the vertical axis being connected to valve chamber 101 in valve deck 3 Hole, valve rod 4 is plugged in vertical axis hole and valve deck 3 is stretched out in the upper end, between the top and valve rod 4 of vertical axis hole from the bottom to top according to It is secondary that filler seat 13, filler 14, filler spacer 15, filler 14 and gland 16 are installed, it is set on the valve rod 4 above gland 16 There is pressing plate 17, pressing plate 17 is fixed on valve deck 3 and compresses gland 16, and the lateral surface of valve deck 3 is circumferentially with multi-layer heat dissipation piece along it 301.It is designed in this way, valve can be made to be more applicable for high temperature fluid environment, increase the whole height of valve by extended type valve deck, Filler can be made partially away from high temperature fluid, increase multi-layer heat dissipation piece in valve deck outer surface, cooling surface area can be increased, improve heat dissipation Performance guarantees the sealing performance of filler part.

Preferably, see Fig. 4, the bottom of vertical axis hole is equipped with guide sleeve 18, and spool 5 is inserted into guide sleeve 18 and between the two Gap cooperates, and heap is welded with stellite layer 19 on the inner sidewall of guide sleeve 18.It is designed in this way, the wearability of guide sleeve can be improved Energy.

Preferably, surface roughness Ra≤0.4 μm of valve seat 6 and spool 5.Attrition process can be used when processing to reach table Surface roughness requirement, low surface roughness can be further improved sealing performance when valve is closed.

The angle valve of the utility model, trafficability performance is good, is easily installed and safeguards, and erosion resistibility and heat-resisting ability By force, it is washed away suitable for High Pressure Difference, by force, the flow for the bad working environments that deep-etching, medium contain gas-liquid-solid three-phase mixing and pressure control System, there is boundless application prospect in fields such as coal chemical industry, environmental protection industry (epi)s.

Claims (10)

1. a kind of angle valve comprising valve body is equipped with valve chamber in the valve body, lateral offer be connected to the valve chamber into Mouth runner；The valve body top is fixedly installed with valve deck and the two contact surface and seals, be vertically fitted in the valve deck valve rod and Dynamic sealing between the two；Spool is equipped in the valve chamber, the upper end of the spool and the valve rod are affixed, the lower section of the spool Equipped with valve seat, vertical fluid channel is offered on the valve seat, the lower end of the spool can be downwardly into and block the stream Body channel；It is characterized by: it further includes outlet flow component, the lower end of the valve body offers the valve being connected to the valve chamber Seat mounting hole, the valve seat, which is inserted by the bottom of the valve seat mounting hole and passes through the bottom surface of threaded fastener and the valve body, to be consolidated It connects, the contact surface of the valve seat and the valve body seals；The outlet flow component is located at the lower section of the valve seat and passes through spiral shell Line fastener and the bottom surface of the valve body are affixed, and the contact surface of the outlet flow component and the valve seat seals, the outlet Flow channel component is equipped with outlet flow that is coaxial with the fluid channel and being connected to.

2. a kind of angle valve according to claim 1, it is characterised in that: the outlet flow component includes reduced flange and lining Pipe, the T-shaped tubular structure of bushing pipe, the pipe portion of the bushing pipe are downwardly into the inner cavity of the reduced flange, the bushing pipe with It is sealed between the top surface of the reduced flange, the pipeline of the bushing pipe forms the outlet flow；The reduced flange passes through spiral shell The bottom surface of column and nut and the valve body is affixed, seals between the bottom surface of the valve seat and the top surface of the bushing pipe, the valve seat Fluid channel and the outlet flow venturi conduit is collectively formed.

3. a kind of angle valve according to claim 2, it is characterised in that: the valve body is forging, the valve seat, the spool It is made with the bushing pipe of tungsten carbide material.

4. a kind of angle valve according to claim 1 or 3, it is characterised in that: the top of the spool is equipped with fitted shaft, described The bottom surface of valve rod offers axis hole, and the fitted shaft is inserted into the axis hole and the two is interference fitted, the fitted shaft and the valve It is fixed between bar by radial direction pin.

5. a kind of angle valve according to claim 2, it is characterised in that: the inlet channel of the valve body, valve chamber and described different Hard alloy layer is all covered on the inner wall of the inner cavity of diameter flange.

6. a kind of angle valve according to claim 1, it is characterised in that: the valve seat is in inverted T shaped tubular structure, the valve seat Pipe portion cooperation be inserted into the valve seat mounting hole, offer ladder counterbore on the bottom surface of the valve seat, the valve seat passes through installation It is affixed in the bottom surface of hexagon socket head cap screw and the valve body in the ladder counterbore.

7. a kind of angle valve according to claim 2, it is characterised in that: between the valve body and the valve deck, the valve seat Between the valve body, between the bottom surface of the valve seat and the top surface of the bushing pipe, the top of the bushing pipe and the reduced flange It is sealed by wound gasket between face.

8. a kind of angle valve according to claim 1, it is characterised in that: the valve deck is extended type valve deck, in the valve deck Equipped with the vertical axis hole being connected to the valve chamber, the valve rod is plugged in the vertical axis hole and the valve is stretched out in the upper end Lid, is sequentially arranged with filler seat, filler, filler spacer, fills out between the top and the valve rod of the vertical axis hole Material and gland, are set with pressing plate, the pressing plate is fixed on the valve deck and presses on the valve rod above the gland The tight gland, the lateral surface of the valve deck are circumferentially with multi-layer heat dissipation piece along it.

9. a kind of angle valve according to claim 8, it is characterised in that: the bottom of the vertical axis hole is equipped with guide sleeve, The spool is inserted into the guide sleeve and the two clearance fit, and heap is welded with stellite on the inner sidewall of the guide sleeve Layer.

10. a kind of angle valve according to claim 1, it is characterised in that: the surface roughness of the valve seat and the spool Ra≤0.4μm。