CN207500488U - Chuck angie type bellows melt control valve - Google Patents
Chuck angie type bellows melt control valve Download PDFInfo
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- CN207500488U CN207500488U CN201721248083.1U CN201721248083U CN207500488U CN 207500488 U CN207500488 U CN 207500488U CN 201721248083 U CN201721248083 U CN 201721248083U CN 207500488 U CN207500488 U CN 207500488U
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Abstract
The utility model provides a kind of chuck angie type bellows melt control valve, including valve component and valve rod assembly, wherein：The external setting chuck of valve component；Valve rod assembly includes valve rod and the flap being fixedly connected with the bottom end of valve rod, the external setting stuffing-box of valve rod upper end, the external stability setting bellows component of lower end；Two groups of V-type fillers are housed between stuffing-box and valve rod：Upper V-type filler and lower V-type filler, spacer ring is set between upper V-type filler and lower V-type filler；Upper V-type filler and lower V-type filler are formed by stacking respectively by multiple molding fillers, and the contact surface of adjacent molding filler is V-type.The chuck angie type bellows melt control valve of the utility model, can keep the temperature melt medium, ensure melt media flow speed, avoid the residence time of melt medium in the duct long and melt is caused to be degraded, and form and aspect are deteriorated, and quality declines.And good airproof performance, it is ensured that melt medium will not leak at valve rod, meet vacuum pressurize requirement.
Description
Technical field
The utility model is related to valve technology fields, and in particular to a kind of chuck angie type bellows melt control valve.
Background technology
Liquid level is controlled frequently with melt control valve in the reaction kettle of polyester production device.Melt control valve conduct
The key equipment of device, the main operating mode under working environment have：
1), the melt medium viscosity of conveying is high.
2), melt medium temperature is higher, generally 280~290 DEG C.
3), pressure difference is small before valve and after valve, generally 10~50kPa.
4), equal percent regulating characteristic requirement.
5), require runner unobstructed, medium cannot adhere to delay or accumulation in valve.
6), vacuum pressurize requirement.
Therefore, the operating mode that melt control valve is on active service is harsh.The melt control used at present due to the limitation of the prior art, the country
Valve processed mainly has two kinds of structural shapes of butterfly valve and chuck core shift rotary valve.Butterfly valve is although simple in structure, but control characteristic is poor, leakage
Amount is big, can not meet vacuum requirement.Chuck core shift rotary valve can be used for the higher melt medium of viscosity, but leakproofness is not good enough, adjust
Characteristic is saved between linear between equal percentage, control characteristic is still poor.
Therefore, a kind of new melt control valve need to be researched and developed to meet the harsh working condition requirement in polyester production device.
Utility model content
The purpose of this utility model is to provide a kind of chuck angie type bellows melt control valve, good airproof performance, leakage is few,
Meet vacuum requirement, and can ensure melt quality, the melt medium higher available for viscosity.
To achieve the above object, the utility model uses following technical scheme：
Chuck angie type bellows melt control valve, including valve component and valve rod assembly, wherein：Outside the valve component
Portion sets chuck；
The valve rod assembly includes valve rod and the flap that is fixedly connected with the bottom end of the valve rod, the valve rod upper end it is outer
Portion sets stuffing-box, the external stability setting bellows component of lower end；
Two groups of V-type fillers are housed between the stuffing-box and the valve rod：Upper V-type filler and lower V-type filler, it is described on
Spacer ring is set between V-type filler and lower V-type filler；The upper V-type filler and lower V-type filler are respectively by multiple molding filler superpositions
It forms, the contact surface of adjacent molding filler is V-type.
According to the utility model, built-in flexible graphite packing between the stuffing-box and the valve rod, the soft graphite
Filler is installed on the upper V-type filler；The top setting filler pressing sleeve of the flexible graphite packing, the filler pressing sleeve lead to
The pressing sleeve nut for crossing the stuffing-box top is compressed, and realizes the sealing of the valve rod.
According to the utility model, the valve component is including valve seat, the main body tube being fixedly connected with the top of the valve seat,
The outlet being fixedly connected with a side opening of the main body tube and the connection method being fixedly connected with the top of the main body tube
It is blue；
The chuck includes the main body jacketed pipe being arranged on outside the main body tube and is arranged on outside the outlet
Jacketed pipe is exported, the side of the main body jacketed pipe is fixed with the outlet clip casing pipe hole opening；
The cavity that heating agent passes through is formed between the main body jacketed pipe, outlet jacketed pipe and the main body tube and outlet,
The main body jacketed pipe connects heat medium pipe.
According to the utility model, the stuffing-box is fixedly connected with the connecting flange, the stuffing-box with the company
The periphery that acting flange connects opens up annular groove, and high temperature O-ring is set in the annular groove.
According to the utility model, the stuffing-box uses lip welded seal with the connecting flange.
According to the utility model, the gap between the main body tube and the valve rod is inserted into the lower end of the stuffing-box, and
It is concordant with the top of the outlet and the joint of the main body tube.
According to the utility model, the bellows component includes bellows and is respectively fixedly disposed at the bellows
Top and the top ring and lower loop of bottom end；
The top ring is fixedly connected with the bottom of the stuffing-box, and the lower loop is consolidated respectively with the valve rod and flap
Fixed connection.
According to the utility model, several trepannings are opened up on the spacer ring, several through-holes, institute are opened up on the stuffing-box
The inner end that trepanning is stated with the through-hole communicates, setting plug screw inside the outer end of the through-hole.
According to the utility model, the head of the flap is curved surface.
According to the utility model, pneumatic actuator is further included, connection is threaded outside the upper end of the stuffing-box
The pneumatic actuator is fixed on the upper end of the stuffing-box by round nut, the round nut；
The top setting connecting screw of the valve rod, the upper end of the connecting screw connects the defeated of the pneumatic actuator
Shaft.
Compared with prior art, the utility model has following advantageous effects：
1) the chuck angie type bellows melt control valve of the utility model, the external setting chuck of valve component, can be to molten
Body medium is kept the temperature, and is ensured melt media flow speed, is avoided the residence time of melt medium in the duct long and cause
Melt is degraded, and form and aspect are deteriorated, and quality declines.
2) the external stability setting bellows component of valve rod lower end forms valve rod primary seal (first of sealing), ensures
Melt medium will not leak at valve rod, meet vacuum pressurize requirement.
3) it is interior between stuffing-box and valve rod that two groups of V-type fillers are housed：Upper V-type filler and lower V-type filler, upper V-type filler and
Spacer ring is set between lower V-type filler, upper V-type filler and lower V-type filler are formed by stacking respectively by multiple molding fillers, it is adjacent into
The contact surface of type filler is V-type, forms the second sealing of the valve rod 21, can preferably ensure that melt medium will not be from valve rod
Place's leakage, meets vacuum pressurize requirement.
Description of the drawings
Fig. 1 is the overall structure diagrammatic cross-section of the chuck angie type bellows melt control valve of the utility model.
Fig. 2 is the partial enlarged view of part A in Fig. 1.
Fig. 3 is the valve component schematic diagram of the utility model.
Fig. 4 is the valve rod assembly schematic diagram of the utility model.
Fig. 5 is the lower V-type filler of the utility model or the diagrammatic cross-section of upper V-type filler.
In figure：
1- valve components, 2- valve rod assemblies, 3- chucks, 4- high temperature O-ring, 5- plug screws, 6- pneumatic actuators, 7- spiral shells
Column, 8- nuts, 9- lip welded seals structure, 11- valve seats, 12- main body tubes, 13- outlets, 14- connecting flanges, 31- main bodys
V under jacketed pipe, 32- outlets jacketed pipe, 33- heat medium pipes, 21- valve rods, 22- flaps, 23- stuffing-boxes, 24- bellows components, 25-
The upper V-type filler of type filler, 26- spacer rings, 27-, 28- flexible graphite packings, 29- filler pressing sleeves, 210- pressing sleeves nut, 220- circle spiral shells
Mother, 230- connecting screws, 231- annular grooves, 232- through-holes, 241- bellowss, 242- top rings, 243- lower loops, 261- are opened
Hole.
Specific embodiment
Below in conjunction with attached drawing, the chuck angie type bellows melt control valve of the utility model is done into one with specific embodiment
Step is described in detail.It should be understood that following embodiment is merely to illustrate the utility model not for restriction the scope of the utility model.
As shown in Figure 1, the chuck angie type bellows melt control valve of the utility model, including valve component 1 and valve rod group
Part 2, wherein：
The external setting chuck 3 of the valve component 1.As shown in figure 4, the valve rod assembly 2 include valve rod 21 and with institute
State the flap 22 that the bottom end of valve rod 21 is fixedly connected, the external setting stuffing-box 23 of the upper end of the valve rod 21, the outside of lower end
Bellows component 24 is fixedly installed.
As shown in Figure 1, Figure 2 with shown in Fig. 5, between the stuffing-box 23 and valve rod 21 in be equipped with two groups of V-type fillers：Upper V-type is filled out
Material 27 and lower V-type filler 25 set spacer ring 26 between the upper V-type filler 27 and lower V-type filler 25.The upper V-type filler 27
It is formed by stacking respectively by multiple molding fillers with lower V-type filler 25, the contact surface of adjacent molding filler is V-type.
The chuck angie type bellows melt control valve of the utility model, the external setting chuck of valve component, can be to melt
Medium is kept the temperature, and is ensured melt media flow speed, is avoided the residence time of melt medium in the duct long and cause molten
Body is degraded, and form and aspect are deteriorated, and quality declines.
The external stability setting bellows component of valve rod lower end forms valve rod primary seal (first of sealing), ensures molten
Body medium will not leak at valve rod, meet vacuum pressurize requirement.
Two groups of V-type fillers are housed between stuffing-box and valve rod：Upper V-type filler and lower V-type filler, upper V-type filler and lower V
Spacer ring is set between type filler, and upper V-type filler and lower V-type filler are formed by stacking respectively by multiple molding fillers, adjacent molding
The contact surface of filler is V-type.The second sealing of the valve rod 21 is formed, can preferably ensure that melt medium will not be at valve rod
Leakage, meets vacuum pressurize requirement.
As depicted in figs. 1 and 2, it is also built-in by low between the stuffing-box 23 and the valve rod 21 according to the utility model
The flexible graphite packing 28 of leakage, the flexible graphite packing 28 are installed on the upper V-type filler 27.The soft graphite
The top setting filler pressing sleeve 29 of filler 28, the filler press 29 sets pressing sleeve nuts 210 for passing through 23 top of stuffing-box into
Row compression, realizes the sealing of the valve rod.
The flexible graphite packing 28 is compressed using filler pressing sleeve 29 and pressing sleeve nut 210, realizes the third road of valve rod 21
Sealing, can preferably ensure that melt medium will not leak at valve rod, meet vacuum pressurize requirement.
As shown in figures 1 and 3, according to the utility model, the valve component 1 includes valve seat 11, with the valve seat 11
The fixed main body tube 12 of upper weld, the outlet 13 being welded and fixed with a side opening of the main body tube 12 and with the master
The connecting flange 14 that the top of body pipe 12 is welded and fixed.
The chuck 3 includes the main body jacketed pipe 31 being arranged on outside the main body tube 12 and is arranged on the outlet 13
External outlet jacketed pipe 32, the side of the main body jacketed pipe 31 are welded and fixed with outlet 32 trepanning of jacketed pipe.
Heating agent is formed between the main body jacketed pipe 31, outlet jacketed pipe 32 and the main body tube 12 and outlet 13 to pass through
Cavity, the main body jacketed pipe 31 connects heat medium pipe 33.Heating agent enters cavity from the heat medium pipe 33, to the main body tube 12
It is kept the temperature with the medium in outlet 13, it is ensured that melt media flow speed avoids the stop of melt medium in the duct
Overlong time and melt is caused to be degraded, form and aspect be deteriorated, quality decline.
Further, the heat medium pipe 33 is set to the upper end of the main body jacketed pipe 31, the close connecting flange 14,
It can ensure that main body tube 12 is evenly heated and kept the temperature.
According to the utility model, the valve seat 11, main body tube 12, outlet 13, connecting flange 14, main body jacketed pipe 31,
Export 33 assembly welding shaping of jacketed pipe 32 and heat medium pipe.The bottom of the valve seat 11 is welded with pipeline butt welding, the outlet 13
One end is welded with 12 trepanning of main body tube, and the other end is connect with pipeline butt welding.It is described outlet jacketed pipe 32 one end with it is described
31 trepanning of main body jacketed pipe is welded, and the other end is connect with pipeline butt welding.
Further, pile-up welding hard alloy at the sealing surface that the valve seat 11 is connected with the main body tube 12, it is ensured that
The wear-resisting of valve, resistance to erosion and corrosion resistance.
As depicted in figs. 1 and 2, according to the utility model, the stuffing-box 23 and the connecting flange 14 by stud 7 and
Nut 8 is fixedly connected, and the stuffing-box 23 opens up annular groove 231, the annular in the periphery to connect with the connecting flange 14
Setting high temperature O-ring 4 in slot 231.
The high temperature O-ring 4 can realize valve component 1 and first of sealing of the junction of valve rod assembly 2.
According to the utility model, the junction of the stuffing-box 23 and the connecting flange 14 is also close using lip welding
Envelope forms lip welded seal structure 9, so as to fulfill the valve component 1 and the second of the junction of the valve rod assembly 2
Sealing.
As shown in figure 4, according to the utility model, the bellows component 24 includes bellows 241 and is fixedly installed respectively
On the top of the bellows 241 and the top ring 242 of bottom end and lower loop 243.
As shown in figure 3, the top ring 242 is fixedly connected with the bottom of the stuffing-box 23, the lower loop 243 is distinguished
It is fixedly connected with the valve rod 21 and flap 22.
According to the utility model, the inner cavity of the main body tube 12 is inserted into the lower end of the stuffing-box 23, and with the outlet
Pipe 13 is concordant with the top of the joint of the main body tube 12.Ensure can avoid melt medium delay or buildup in inner cavity.
As shown in Figure 1 and Figure 4, according to the utility model, achievable equal percentage tune is processed on the head of the flap 22
Save the curve form of characteristic requirements.So as to improve control characteristic, realize that the equal percentage of control valve is adjusted.
As shown in Figure 1, Figure 2 and Figure 4, according to the utility model, four trepannings 261 are opened up on the spacer ring 26, it is described to fill out
4 through-holes 232 are opened up on material letter 23.During installation, the trepanning 261 is communicated with the inner end of the through-hole 232, the through-hole 232
Outer end inside setting plug screw 5, the plug screw 5 is threadedly coupled with the through-hole 232.
The quantity of the trepanning 261 and corresponding through-hole 232 can flexibly be set according to actual needs.The plug screw 5 can be
The valve rod 21 promptly unloads when leaking, and stop-leak compound is injected spacer ring 26 by through-hole 232, realizes urgent greasing sealing.
As shown in Figure 1, according to the utility model, the chuck angie type bellows melt control valve further includes pneumatic execution machine
Structure 6, is threaded the round nut 220 of connection outside the upper end of the stuffing-box 23, and the round nut 220 is by the pneumatic execution
Mechanism 6 is fixed on the upper end of the stuffing-box 23.
The top setting connecting screw 230 of the valve rod 21, the upper end of the connecting screw 230 connects the pneumatic execution
The output shaft of mechanism 6.
Two kinds of structures of film or piston mainly can be used according to the requirement of thrust output and stroke in the pneumatic actuator 6
Pattern.
The pneumatic actuator 6 receives the control signal of locator and generates corresponding thrust, passes through connecting screw 230
Corresponding thrust is transferred to the flap 22 of the valve rod assembly 2, the action of flap 22 is real to the corresponding aperture of control signal
The equal percentage of existing valve adjusts requirement.
As shown in figure 3, according to the utility model, ranging from 30 degree of the axial angle of the outlet 13 and main body tube 12-
65 degree, correspondingly, ranging from 30 degree -65 degree of axial angle of the outlet jacketed pipe 32 and main body jacketed pipe 31, the axial direction
Angle can change according to design requirement, such as 30 degree, 45 degree or 60 degree.
Further, the axial angle is preferably 60 degree, the delay of melt medium when can effectively avoid device driving and parking
Or buildup.
According to the utility model, runner is polished after 13 welding processing of the valve seat 11, main body tube 12 and outlet
Processing ensures that melt medium will not adhere to delay or accumulation in transmission process in runner and influence melt quality.
With reference to shown in Fig. 1 to Fig. 5, the installation and application of the utility model is as follows：
According to the utility model, the pneumatic actuator 6 receives the control signal of locator and generates corresponding thrust,
Corresponding thrust is transferred to the flap 22 of the valve rod assembly 2, the action of flap 22 to control letter by connecting screw 230
Number corresponding aperture realizes that the equal percentage of valve adjusts requirement.
Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model
It is not restricted to particular embodiments described above.To those skilled in the art, it is any that the practicality is equal
Modifications and substitutions are also all among the scope of the utility model.Therefore, the institute under the spirit and scope for not departing from the utility model
The impartial conversion of work and modification should all be covered in the scope of the utility model.
Claims (10)
1. chuck angie type bellows melt control valve, including valve component and valve rod assembly, which is characterized in that wherein：The valve
The external setting chuck of body component；
The valve rod assembly includes valve rod and the flap being fixedly connected with the bottom end of the valve rod, and the outside of the valve rod upper end is set
Put stuffing-box, the external stability setting bellows component of lower end；
Two groups of V-type fillers are housed between the stuffing-box and the valve rod：Upper V-type filler and lower V-type filler, the upper V-type
Spacer ring is set between filler and lower V-type filler；The upper V-type filler and lower V-type filler respectively by multiple molding fillers superpositions and
Into the contact surface of adjacent molding filler is V-type.
2. chuck angie type bellows melt control valve according to claim 1, which is characterized in that the stuffing-box with it is described
Built-in flexible graphite packing between valve rod, the flexible graphite packing are installed on the upper V-type filler；The soft graphite
The top setting filler pressing sleeve of filler, the filler pressing sleeve are compressed by the pressing sleeve nut on the stuffing-box top, are realized
The sealing of the valve rod.
3. chuck angie type bellows melt control valve according to claim 1, which is characterized in that the valve component includes
Valve seat, the main body tube being fixedly connected with the top of the valve seat, the outlet being fixedly connected with a side opening of the main body tube,
And the connecting flange being fixedly connected with the top of the main body tube；
The chuck includes the main body jacketed pipe being arranged on outside the main body tube and the outlet being arranged on outside the outlet
Jacketed pipe, the side of the main body jacketed pipe are fixed with the outlet clip casing pipe hole opening；
The cavity that heating agent passes through is formed between the main body jacketed pipe, outlet jacketed pipe and the main body tube and outlet, it is described
Main body jacketed pipe connects heat medium pipe.
4. chuck angie type bellows melt control valve according to claim 3, which is characterized in that the stuffing-box with it is described
Connecting flange is fixedly connected, and the stuffing-box opens up annular groove in the periphery to connect with the connecting flange, in the annular groove
High temperature O-ring is set.
5. chuck angie type bellows melt control valve according to claim 4, which is characterized in that the stuffing-box with it is described
Connecting flange uses lip welded seal.
6. chuck angie type bellows melt control valve according to claim 3, which is characterized in that the lower end of the stuffing-box
Be inserted into the gap between the main body tube and the valve rod, and with the outlet and the top flat of the joint of the main body tube
Together.
7. chuck angie type bellows melt control valve according to claim 1, which is characterized in that the bellows component packet
It includes bellows and is respectively fixedly disposed at the top of the bellows and the top ring of bottom end and lower loop；
The top ring is fixedly connected with the bottom of the stuffing-box, and the lower loop is fixed respectively with the valve rod and flap to be connected
It connects.
8. chuck angie type bellows melt control valve according to claim 1, which is characterized in that if being opened up on the spacer ring
A trepanning is done, several through-holes are opened up on the stuffing-box, the trepanning is communicated with the inner end of the through-hole, outside the through-hole
The internal setting plug screw in end.
9. the chuck angie type bellows melt control valve according to any one of claim 1-8, which is characterized in that the valve
The head of valve is curved surface.
10. the chuck angie type bellows melt control valve according to any one of claim 1-8, which is characterized in that also wrap
Pneumatic actuator is included, the round nut of connection is threaded outside the upper end of the stuffing-box, the round nut will be described pneumatic
Executing agency is fixed on the upper end of the stuffing-box；
The top setting connecting screw of the valve rod, the upper end of the connecting screw connects the output of the pneumatic actuator
Axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248083.1U CN207500488U (en) | 2017-09-27 | 2017-09-27 | Chuck angie type bellows melt control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721248083.1U CN207500488U (en) | 2017-09-27 | 2017-09-27 | Chuck angie type bellows melt control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207500488U true CN207500488U (en) | 2018-06-15 |
Family
ID=62499589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721248083.1U Active CN207500488U (en) | 2017-09-27 | 2017-09-27 | Chuck angie type bellows melt control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207500488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260035A (en) * | 2019-06-20 | 2019-09-20 | 江苏神通阀门股份有限公司 | A kind of AH grades of shut-off valve sealing structure |
-
2017
- 2017-09-27 CN CN201721248083.1U patent/CN207500488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260035A (en) * | 2019-06-20 | 2019-09-20 | 江苏神通阀门股份有限公司 | A kind of AH grades of shut-off valve sealing structure |
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