CN202065501U - Pneumatic three-way cut-off valve - Google Patents
Pneumatic three-way cut-off valve Download PDFInfo
- Publication number
- CN202065501U CN202065501U CN2011200533169U CN201120053316U CN202065501U CN 202065501 U CN202065501 U CN 202065501U CN 2011200533169 U CN2011200533169 U CN 2011200533169U CN 201120053316 U CN201120053316 U CN 201120053316U CN 202065501 U CN202065501 U CN 202065501U
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- valve
- pneumatic
- way cut
- valve body
- cut
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- Expired - Fee Related
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Abstract
The utility model relates to a pneumatic three-way cut-off valve which comprises an auxiliary valve body, a lower valve seat, a valve core, an upper valve seat, a valve body, a connecting pipe, a positioning pin, a valve rod, a valve cover, an oil filling port stopper, a support, a pneumatic piston type actuating mechanism, a hand wheel mechanism, a clamping block, packing glands, a packing group, a spacer sleeve, a connecting plate and a linking part, wherein the connecting pipe is arranged between the valve body and the valve cover, the connecting plate at the upper end of the connecting pipe is used for mounting the lower half part of the valve in a heating medium box, radiating fins are arranged at the outer circumference of the valve cover, the spacer sleeve is arranged between two groups of packing, a lubricating oil filling port is further arranged in the pneumatic three-way cut-off valve, hard alloy is build-up welded on the tapered sealing surfaces of the upper and the lower valve seats and the valve core, and the double-action type pneumatic piston type actuating mechanism with the hand wheel mechanism is further matched and used. The pneumatic three-way cut-off valve has the advantages of high temperature resistance, fast action speed, tight cut-off, capability of being mounted in the heating medium box for use and the like, and is particularly applicable to pipeline systems which enable the media to be prone to solidification and crystallization, need to perform heating and heat insulation so as to ensure smooth circulation and need to control the diffluence or confluence of two lines of the media.
Description
Technical field
The utility model relates to a kind of cut-off valve, particularly relates to a kind of Pneumatic three-way cut-off valve that is suitable for the easy solidification and crystallization of normal temperature state medium and needs to control two road medium shunts or collaborate pipe-line system.
Background technique
The threeway cut-off valve is a kind ofly to be used for that one road fluid is divided into two tunnel (shuntings) or with synthetic one tunnel (interflow) of two road fluids or open wherein and one the road cut out another road simultaneously, to use ten minutes wide industrial valve.But the threeway cut-off valve of prior art generally only is applicable to conventional character medium, operating temperature-40～+ 400 ℃, and sealing requirements is not very strict applying working condition.Because of the very high medium of fusing point, be very easy to solidification and crystallization at the normal temperature state, in industrial processes, be unfavorable for flowing and carry, must utilize heating agent to carry out heat tracing to conveyance conduit and control valve, be beneficial to medium and flow smoothly, guarantee that production technology is normal at the working temperature state of technological requirement.
Summary of the invention
The purpose of this utility model is: provide a kind of and be applicable to that worst hot case (〉=400 ℃), sealing requirements are higher, can be installed on the Pneumatic three-way cut-off valve that uses among the heating agent case.
Technical solution of the present utility model is: a kind of Pneumatic three-way cut-off valve comprises auxiliary valve body 1, lower valve base 2, spool 3, upper valve base 4, valve body 5, connecting tube 6, locating stud 7, valve rod 8, valve gap 9, pouring orifice obstruction 10, support 11, Pneumatic piston actuator 12, handwheel 13, fixture block 14, Gland 15, filler 16, spacer 17, connecting plate 18 and coupling.Described auxiliary valve body 1, valve body 5 adopt the heat resisting alloy steel casting with valve gap 9, to improve the resistance to heat of valve housing.Upper valve base 4 is fixedly welded between the left and right sides valve pocket of valve body 5, and lower valve base 2 is fixedly welded on the auxiliary valve body 1, the conical seal (contact) face pile-up welding hard alloy of last lower valve base and spool.Auxiliary valve body 1 is installed on the lower end of valve body 5 left valve pockets, and its center has the pilot hole that is used for 3 times guiding of spool.Add connecting tube 6 between valve body 5 and the valve gap 9, the connecting tube lower end has confession spool 3 and moves up and down the pilot hole of guiding, and has the equalizing orifice that is communicated with valve body 5 and connecting tube 6 inner chambers.With the connecting plate 18 that connecting tube 6 upper ends are connected, be used for valve lower half portion is mounted among the heating agent case, and between plane and connecting plate 18 lower planes heat-resisting asbestos packing sheet be housed on the connecting tube 6, be used for heat insulation and sealing.
Valve gap 9 excircles have radiating fin, be equipped with in its stuffing hole between 16, two groups of fillers of two groups of fillers and install spacer 17 additional, the valve gap outside of its respective heights has the pouring orifice of filling lubricant grease, filler 16 tops compress by stud nut with Gland 15, guarantee the sealing of valve rod movable part.Valve rod 8 lower ends screw in spool 3 upper end screws, and fastening with locating stud 7.Pneumatic piston actuator 12 is installed on the valve gap 9 by support, and its push rod lower end and valve rod 8 upper ends are connected and fixed with fixture block 14.
Install handwheel 13 in the Pneumatic piston actuator 12 additional, when breaking down, can reliably open and close, guarantee equipment and personal security by the handwheel control valve at actuator or control source of the gas.
That the utility model product has is high temperature resistant, quick action, cut-out are tight, can be installed on and advantage such as use among the heating agent case, be specially adapted to the easy solidification and crystallization of medium normal-temperature state, need heat tracing smooth and easy, and need the pipe-line system at control two road medium shunts or interflow to guarantee fluid.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an A-A profile of the present utility model.
Fig. 3 is the structure enlarged diagram of spacer in the utility model.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is described further.
Among the embodiment as shown in Figure 1 and Figure 2, comprise auxiliary valve body 1, lower valve base 2, spool 3, upper valve base 4, valve body 5, connecting tube 6, locating stud 7, valve rod 8, valve gap 9, pouring orifice obstruction 10, support 11, Pneumatic piston actuator 12, handwheel 13, fixture block 14, Gland 15, filler group 16, spacer 17, connecting plate 18 and coupling.
Upper valve base 4 is fixedly welded between the left and right sides valve pocket of valve body 5, and lower valve base 2 is fixedly welded on the auxiliary valve body 1, the conical seal (contact) face pile-up welding hard alloy of last lower valve base and spool.Auxiliary valve body 1 is installed on the lower end of valve body 5 left valve pockets, and its center has the pilot hole that is used for 3 times guiding of spool.Add connecting tube 6 between valve body 5 and the valve gap 9, the connecting tube lower end has confession spool 3 and moves up and down the pilot hole of guiding, and has the equalizing orifice that is communicated with valve body 5 and connecting tube 6 inner chambers.With the connecting plate 18 that connecting tube 6 upper ends are connected, be used for valve lower half portion is mounted among the heating agent case, and between plane and connecting plate 18 lower planes heat-resisting asbestos packing sheet be housed on the connecting tube 6, be used for heat insulation and sealing.
Valve gap 9 excircles have radiating fin, be equipped with in its stuffing hole between 16, two groups of fillers of two groups of fillers and install spacer 17 additional, the valve gap outside of its respective heights has the pouring orifice of filling lubricant grease, filler 16 tops compress by stud nut with Gland 15, guarantee the sealing of valve rod movable part.Valve rod 8 lower ends screw in spool 3 upper end screws, and fastening with locating stud 7.Pneumatic piston actuator 12 is installed on the valve gap 9 by support, and its push rod lower end and valve rod 8 upper ends are connected and fixed with fixture block 14.
Install handwheel 13 in the Pneumatic piston actuator 12 additional, when breaking down, can reliably open and close, guarantee equipment and personal security by the handwheel control valve at actuator or control source of the gas.
Spacer in the utility model as shown in Figure 3, its internal and external circumference surface Machining has axial annular groove 171, circumferencial direction is processed with equally distributed four radial holes 172, make it both have certain elasticity and play the certain pretightening force of generation between the filler group, can play the effect that is beneficial to lubricant grease sufficient lubrication filler group again.
Its working principle is: when suction port in the Pneumatic piston actuator 12 is connected the control source of the gas, promote its piston and move down, drive spool 3 and move down, open the valve seat between the runner of the left and right sides, and close lower valve base.When 12 times suction ports of Pneumatic piston actuator are connected the control source of the gas, promote to move on its piston, drive spool 3 and also move up, close the valve seat between the runner of the left and right sides, and open valve seat between lower flow channel and left runner, make lower flow channel communicate, thereby changed the flow direction of fluid with left runner.
Claims (7)
1. Pneumatic three-way cut-off valve, comprise auxiliary valve body (1), lower valve base (2), spool (3), upper valve base (4), valve body (5), connecting tube (6), locating stud (7), valve rod (8), valve gap (9), pouring orifice stops up (10), support (11), Pneumatic piston actuator (12), handwheel (13), fixture block (14), Gland (15), filler (16), spacer (17), connecting plate (18) and coupling, it is characterized in that installing connecting tube (6) additional between valve body (1) and the valve gap (9), the connecting plate (18) that is fixed in connecting tube upper end is used for valve lower half portion is installed among the heating agent case.
2. Pneumatic three-way cut-off valve according to claim 1 is characterized in that: described valve body, auxiliary valve body and valve gap are the heat resisting alloy steel casting.
3. Pneumatic three-way cut-off valve according to claim 1 is characterized in that: the excircle of described valve gap has radiating fin.
4. Pneumatic three-way cut-off valve according to claim 1 is characterized in that: two groups of fillers are housed in the stuffing hole of described valve gap, between install spacer additional, the valve gap of its respective heights outside has the pouring orifice of filling lubricant grease.
5. Pneumatic three-way cut-off valve according to claim 1 is characterized in that: the inner and outer surface of described spacer is processed with axial annular groove, and circumferencial direction has equally distributed four radial holes.
6. Pneumatic three-way cut-off valve according to claim 1 is characterized in that: the conical seal (contact) face pile-up welding hard alloy material of described upper and lower valve seat and spool.
7. Pneumatic three-way cut-off valve according to claim 1 is characterized in that: in the described Pneumatic piston actuator handwheel is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200533169U CN202065501U (en) | 2011-02-28 | 2011-02-28 | Pneumatic three-way cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200533169U CN202065501U (en) | 2011-02-28 | 2011-02-28 | Pneumatic three-way cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065501U true CN202065501U (en) | 2011-12-07 |
Family
ID=45059364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200533169U Expired - Fee Related CN202065501U (en) | 2011-02-28 | 2011-02-28 | Pneumatic three-way cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094662A1 (en) * | 2016-11-24 | 2018-05-31 | 周玉春 | Three-way change-over valve providing continuous flow |
| CN108506501A (en) * | 2018-05-09 | 2018-09-07 | 中山慧能科技有限公司 | A kind of high temperature resistant pneumatic stopping valve |
-
2011
- 2011-02-28 CN CN2011200533169U patent/CN202065501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094662A1 (en) * | 2016-11-24 | 2018-05-31 | 周玉春 | Three-way change-over valve providing continuous flow |
| CN108506501A (en) * | 2018-05-09 | 2018-09-07 | 中山慧能科技有限公司 | A kind of high temperature resistant pneumatic stopping valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20170228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |