WO2023093424A1 - 截止阀、加工方法及装配方法 - Google Patents
截止阀、加工方法及装配方法 Download PDFInfo
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- WO2023093424A1 WO2023093424A1 PCT/CN2022/127405 CN2022127405W WO2023093424A1 WO 2023093424 A1 WO2023093424 A1 WO 2023093424A1 CN 2022127405 W CN2022127405 W CN 2022127405W WO 2023093424 A1 WO2023093424 A1 WO 2023093424A1
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- Prior art keywords
- valve
- tube
- port
- shut
- connecting pipe
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000003754 machining Methods 0.000 title abstract 3
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 66
- 239000010935 stainless steel Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 238000003672 processing method Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 238000005219 brazing Methods 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 17
- 239000000463 material Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Definitions
- the present application relates to the technical field of shut-off valves, in particular, to a shut-off valve, a processing method and an assembly method.
- the existing stop valve is usually composed of a valve body, a valve core and other structures, and the valve port is opened or closed by the valve core moving up and down in the valve body.
- the valve port is opened, the fluid enters the valve body, and the kinetic energy is large, which will cause the fluid flow to be unstable.
- Due to the complex overall structure of the valve body it is often difficult to process the valve body and assemble the globe valve as a whole. , thus resulting in an increase in processing costs; and the material of the valve body and valve core is usually brass, and the cost of brass materials is relatively high.
- the application provides a cut-off valve, a processing method and an assembly method to solve the problems of unsteady fluid flow, difficult processing and high cost in the cut-off valve in the prior art.
- the present application provides a shut-off valve, including: a valve pipe, the two ends of the valve pipe are the operating end and the blocking end respectively, and the side wall of the valve pipe has a first interface and the second port, both the first port and the second port communicate with the cavity of the valve tube, the second port is closer to the blocking end relative to the first port, and the space between the second port and the blocking end in the valve tube forms a buffer chamber; the base, the base is used to block the opening of the plugging end; the collar is fixed in the cavity of the valve tube, the outer wall of the collar is tightly matched with the inner wall of the valve tube, and the collar is located between the first interface and the second interface, The collar has a valve port; the valve core is movably arranged in the cavity of the valve tube to close or open the valve port, and the valve core is located on the side of the collar facing the operating end; wherein, the valve tube and the base are made of stainless steel.
- the stop valve also includes: a pressing block, which is arranged in the cavity of the valve tube, and the outer wall of the pressing block and The inner wall of the valve tube is fixedly connected, the pressing block has an internal thread, and the internal thread and the external thread are matched.
- the collar is made of stainless steel, and/or the valve core is made of stainless steel, and/or the pressing block is made of stainless steel.
- the side of the pressure block facing the valve port has an annular groove
- the stop valve further includes a first sealing gasket, which is sleeved on the valve core, and the first sealing gasket is matched with the peripheral stopper of the annular groove.
- the side wall of the valve core has a first annular groove and a second annular groove
- the globe valve also includes a seal and a second gasket, the seal is located in the first annular groove, and the seal is in sealing fit with the inner wall of the valve tube, The second sealing pad is located in the second annular groove; wherein, when the valve port is closed, the second sealing pad abuts against the peripheral edge of the valve port.
- the spool includes a first rod segment, a second rod segment and a third rod segment connected in sequence, the diameter of the second rod segment is larger than the diameters of the first rod segment and the third rod segment, and the diameter of the third rod segment is smaller than
- the diameter of the valve port, the two ends of the second rod section are respectively provided with a first annular groove and a second annular groove, wherein the opening of the first annular groove faces the inner wall of the valve tube, and the opening of the second annular groove faces the collar.
- the collar includes a sleeve body and an annular rib arranged at one end of the sleeve body, the outer wall of the sleeve body is connected to the inner wall of the valve tube, the outer diameter of the annular rib is smaller than the outer diameter of the sleeve body, and the opening of the annular rib forms a valve Wherein, when the valve port is closed, the second sealing gasket abuts against the annular rib.
- the globe valve also includes: a first connecting pipe, one end of the first connecting pipe is connected to the first interface, and the first connecting pipe is made of stainless steel; a second connecting pipe, one end of the second connecting pipe is connected to the second interface, and the second connecting pipe is connected to the first connecting pipe.
- One connecting pipe is arranged in parallel, and the second connecting pipe is made of stainless steel.
- shut-off valve further includes: a third connecting pipe, the third connecting pipe is sleeved on the end of the first connecting pipe away from the first interface; a fourth connecting pipe, the fourth connecting pipe is sleeved on the end of the second connecting pipe away from the second interface.
- shut-off valve also includes a first valve cover, a second valve cover and a third valve cover, the first valve cover covers the operating end of the valve pipe, the second valve cover covers one end of the third connecting pipe, and the third valve cover Cap one end of the fourth adapter.
- the side wall of the valve tube also has a vent, and the vent communicates with the cavity of the valve tube, and the shut-off valve also includes a valve structure, which is connected to the vent.
- a processing method for processing the cut-off valve described above includes: using a flanging machine to turn out multiple flanging openings on the side wall of the stainless steel pipe to process the cut-off valve.
- the valve tube of the valve includes cold heading and cutting processing of stainless steel rods or stainless steel pipes to process the collar of the stop valve; cold heading and cutting processing of stainless steel rods to process the valve core of the stop valve; stainless steel rods Cutting process to process the briquetting block of the globe valve; stamping the stainless steel plate to process the base of the globe valve.
- an assembly method for assembling the above cut-off valve includes: S1: Press the collar of the cut-off valve into the valve tube of the cut-off valve, and insert the first connecting pipe of the cut-off valve , The second connection pipe and the valve nozzle are pressed into the first interface, the second interface and the vent port of the valve tube, and the base of the globe valve is connected with the valve tube by spot welding; S2: Brazing the integral structure assembled in S1 in the furnace ; S3: Set the first gasket, the second gasket and the seal of the globe valve on the spool of the globe valve; S4: Put the structure assembled in S3 into the valve tube as a whole; S5: Put the globe valve The briquetting block is pressed into the valve tube, and then the briquetting block and the valve tube are connected by laser welding or argon arc welding.
- a shut-off valve including: a valve pipe, the two ends of the valve pipe are the operating end and the blocking end respectively, the side wall of the valve pipe has a first interface and a second interface, the first Both the interface and the second interface communicate with the cavity of the valve tube, the second interface is closer to the blocking end relative to the first interface, and the space between the second interface and the blocking end in the valve tube forms a buffer chamber; the base is used for Block the opening of the blocking end; the collar is fixed in the cavity of the valve tube, the outer wall of the collar and the inner wall of the valve tube are in sealing fit, the collar is located between the first interface and the second interface, and the collar has a valve port; the valve The spool is movably arranged in the cavity of the valve tube to close or open the valve port, and the spool is located on the side of the collar facing the operating end; wherein, the valve tube and the base are made of stainless steel.
- the first interface and the second interface can be connected or disconnected through the valve core moving up and down in the cavity of the valve tube, that is, the valve port is opened or closed; the collar is connected with the cavity of the valve tube to reduce the
- this connection method can be brazed, which can ensure a more stable and reliable connection, and the outer wall of the collar can be tightly matched with the inner wall of the valve tube, which improves the sealing performance at the valve port.
- Figure 1 shows a cross-sectional view of the shut-off valve provided by Embodiment 1 of the present application when it is opened;
- Fig. 2 shows a cross-sectional view when the shut-off valve in Fig. 1 is closed
- Figure 3 shows a cross-sectional view of the collar in Figure 1;
- Figure 4 shows a cross-sectional view of the compact in Figure 1;
- Figure 5 shows an exploded view of the shut-off valve in Figure 1;
- Fig. 6 shows the structural diagram of the spool in Fig. 1;
- Figure 7 shows a sectional view of the spool in Figure 6;
- Figure 8 shows an exploded view of the shut-off valve provided by Embodiment 2 of the present application.
- Fig. 9 shows a cross-sectional view of the shut-off valve in Fig. 8.
- Fig. 10 shows a sectional view of the shut-off valve in another position in Fig. 9;
- Fig. 11 shows the structural diagram of the valve seat in Fig. 8.
- Figure 12 shows a cross-sectional view of the valve seat in Figure 11;
- Fig. 13 shows the structural diagram of the spool in Fig. 8;
- Figure 14 shows a cross-sectional view of the spool in Figure 13;
- FIG. 15 shows a cross-sectional view of the compact in FIG. 8 .
- Valve tube 11. Operating end; 12. Blocking end; 13. First interface; 14. Second interface; 15. Buffer chamber; 16. Air vent;
- valve port 32, sleeve body; 33, annular rib;
- 40 spool; 41, external thread; 42, operating part; 43, first annular groove; 44, second annular groove; 45, first rod segment; 46, second rod segment; 47, third rod segment;
- Embodiment 1 of the present application provides a cut-off valve, including: a valve tube 10, the two ends of the valve tube 10 are the operating end 11 and the blocking end 12 respectively, the side of the valve tube 10 There are a first port 13 and a second port 14 on the wall, both of the first port 13 and the second port 14 communicate with the cavity of the valve tube 10, the second port 14 is closer to the blocking end 12 relative to the first port 13, and the valve tube 10, the space between the second interface 14 and the blocking end 12 forms a buffer chamber 15; the base 20 is connected to the blocking end 12 to block the opening of the blocking end 12; the collar 30 is fixed on the valve tube 10 In the cavity, the outer wall of the collar 30 and the inner wall of the valve tube 10 are in sealing fit, the collar 30 is located between the first interface 13 and the second interface 14, the collar 30 has a valve port 31; the valve core 40 is movably set In the cavity of the valve tube 10 , to close or open the valve port 31 , the valve core 40 is located on the side
- connection or disconnection between the first port 13 and the second port 14 can be realized, that is, the valve port 31 is opened or closed;
- the cavity connection of 10 reduces the difficulty of processing.
- the connection method can be brazed, which can ensure a more stable and reliable connection, and the outer wall of the collar 30 can be sealed with the inner wall of the valve tube 10, which improves the valve port. 31 tightness.
- first interface 13 and the second interface 14 on the side wall of the valve tube 10 can be processed by flanging, which makes the processing easier.
- the outer wall of the spool 40 has an external thread 41
- the spool 40 has an operation part 42 inside, and the opening of the operation part 42 is away from the valve port 31.
- the outer wall of the pressure block 50 is fixedly connected with the inner wall of the valve pipe 10
- the pressure block 50 has an internal thread 51 , which cooperates with the external thread 41 .
- the valve core 40 can move up and down in the cavity of the valve tube 10 , so as to open or close the valve port 31 .
- the operation part 42 is a hexagonal structure or a quadrangular structure, which is convenient for the user to operate.
- the collar 30 is made of stainless steel, and/or the valve core 40 is made of stainless steel, and/or the pressing block 50 is made of stainless steel.
- the collar 30, the valve core 40 and the pressing block 50 are all made of stainless steel, which reduces the production cost.
- the pressure block 50 has an annular groove 52 on the side facing the valve port 31, and the globe valve also includes a first gasket 61, which is sleeved on the valve core 40, and the first gasket 61 and the annular groove
- the peripheral edge of the slot 52 is a stop fit.
- the side wall of the valve core 40 has a first annular groove 43 and a second annular groove 44
- the stop valve also includes a seal 62 and a second gasket 63
- the seal 62 is located in the first annular groove 43
- the seal 62 Fitting sealingly with the inner wall of the valve tube 10
- the second sealing pad 63 is located in the second annular groove 44 ; wherein, when the valve port 31 is closed, the second sealing pad 63 abuts against the peripheral edge of the valve port 31 .
- the sealing member 62 abuts against the inner wall of the first annular groove 43, and the sealing member 62 is in sealing fit with the inner wall of the valve tube 10, which improves the sealing performance of the valve core 40 and the valve tube 10; the second sealing gasket 63 Abutting against the inner wall of the second annular groove 44 improves the sealing performance of the valve core 40 and the valve tube 10 .
- the second annular groove 44 can be understood as an annular step.
- the second gasket 63 can abut against the peripheral edge of the valve port 31 , realizing a soft seal between the valve core 40 and the valve port 31 , effectively reducing the user's work intensity.
- the sealing element is a sealing ring.
- the seal can also be a composite seal.
- the spool 40 includes a first rod segment 45, a second rod segment 46 and a third rod segment 47 connected in sequence, the diameter of the second rod segment 46 is greater than the diameters of the first rod segment 45 and the third rod segment 47, The diameter of the three rod sections 47 is smaller than the diameter of the valve port 31, and the two ends of the second rod section 46 are respectively provided with a first annular groove 43 and a second annular groove 44, wherein the opening of the first annular groove 43 faces the valve pipe 10. On the inner wall, the opening of the second annular groove 44 faces the collar 30 .
- the diameter of the third rod segment 47 is set to be smaller than the diameter of the valve port 31, which is convenient to cooperate with the valve port 31; the diameter of the second rod segment 46 is set to be larger than the first rod segment 45 and the third rod segment 47
- the collar 30 can act as a stopper for the valve core 40, thereby limiting the movement range of the valve core 40.
- the opening diameter of the second annular groove 44 is smaller than the inner diameter, which can better embed the second sealing gasket 63 and improve the sealing performance of the valve port 31 .
- the collar 30 includes a sleeve body 32 and an annular rib 33 arranged at one end of the sleeve body 32, the outer wall of the sleeve body 32 is connected to the inner wall of the valve tube 10, and the outer diameter of the annular rib 33 is smaller than that of the sleeve body 32.
- the outer diameter of the annular rib 33 forms the valve port 31 ; wherein, when the valve port 31 is closed, the second sealing gasket 63 abuts against the annular rib 33 .
- the sealing effect of the valve port 31 can be better improved by providing the annular rib 33 .
- the annular rib 33 can abut against the second sealing pad 63 , realizing a soft seal between the valve core 40 and the valve port 31 .
- the stop valve also includes: a first connecting pipe 641, one end of the first connecting pipe 641 is connected to the first interface 13, and the first connecting pipe 641 is made of stainless steel; a second connecting pipe 642, one end of the second connecting pipe 642 and the first The two ports 14 are connected, the second connecting pipe 642 and the first connecting pipe 641 are arranged in parallel, and the second connecting pipe 642 is made of stainless steel.
- Adopting the above-mentioned setting method facilitates the communication with the external pipes; the first connecting pipe 641 and the second connecting pipe 642 are respectively connected to the first interface 13 and the second interface 14, and the connection method can be brazed, which is stable and firm; the first connecting pipe 641 and the second connecting pipe 642 communicate with the first port 13 and the second port 14 respectively, so as to realize fluid communication.
- the material of the first connecting pipe 641 and the second connecting pipe 642 is set to stainless steel, which reduces the material cost.
- the shut-off valve further includes: a third connecting pipe 651, which is sleeved on the end of the first connecting pipe 641 away from the first interface 13; a fourth connecting pipe 652, which is sleeved on the second connecting pipe 642 away from the second One end of interface 14.
- the third connecting pipe 651 and the fourth connecting pipe 652 are sheathed on one end of the first connecting pipe 641 and the second connecting pipe 642 respectively, so as to facilitate the connection with external connecting pipes and improve the convenience of the shut-off valve.
- the third connecting pipe 651 and the fourth connecting pipe 652 are made of red copper, which is more convenient for users to connect to external connecting pipes.
- the cut-off valve also includes a first valve cover 661, a second valve cover 662 and a third valve cover 663, the first valve cover 661 covers the operating end 11 of the valve tube 10, the second valve cover 662 covers the third connecting pipe One end of the connecting pipe 651, and the third valve cover 663 covers one end of the fourth connecting pipe 652.
- the first bonnet 661 one end of the valve tube 10 can be covered, preventing the valve tube 10 from being disturbed by the outside world, and ensuring safety and stability during work;
- the second bonnet 662 and the third bonnet 663 are respectively used to cover Hold one end of the third connecting pipe 651 and the fourth connecting pipe 652 to prevent the inner cavities of the third connecting pipe 651 and the fourth connecting pipe 652 from being disturbed by the outside world.
- the first valve cover 661 , the second valve cover 662 and the third valve cover 663 can be made of stainless steel or plastic, which reduces material costs.
- the vent 16 communicates with the cavity of the valve tube 10
- the stop valve further includes a valve structure 67 connected to the vent 16 .
- the air valve structure 67 can be made of stainless steel to reduce material cost.
- valve structure 67 includes: a tube body, a valve core and a tube cap, one end of the tube body is connected to the vent 16, the valve core is arranged in the tube body, and the tube cap is used to cover the other end of the tube body.
- one end of the pipe body is connected to the vent 16, and the connection method can be brazing, which is stable and reliable.
- the base 20 includes a bottom plate and a folded plate perpendicular to each other, the bottom plate is welded to the blocked end 12 of the valve tube 10 , and the folded plate has a through hole.
- the base plate and the plugging end 12 of the valve pipe 10 are welded and connected by welding, which is stable and reliable; through holes are provided to facilitate installation with external structures.
- Another embodiment of the present application provides a processing method for processing the cut-off valve described above, the processing method includes: using a flanging machine to turn out multiple flanging openings on the side wall of the stainless steel pipe to process the cut-off valve
- the valve pipe 10 of stainless steel bar or stainless steel pipe is cold-headed and cut to process the collar 30 of the stop valve; the stainless steel rod is cold-headed and cut to process the spool 40 of the stop valve;
- the rod is cut to process the pressing block 50 of the shut-off valve; the stainless steel plate is stamped to process the base 20 of the shut-off valve.
- the stainless steel pipe is flanged by a flanging machine, and the valve pipe 10 of the stop valve can be processed; the collar 30 and the valve core 40 can be obtained by cold heading and cutting the stainless steel rod; It can be obtained by cutting; the base 20 is obtained by stamping a stainless steel plate.
- the plurality of flanged ports include a first port 13 , a second port 14 and a vent 16 .
- the processing method also includes: the first connecting pipe 641 and the second connecting pipe 642 are obtained by cutting stainless steel pipes; the third connecting pipe 651 and the fourth connecting pipe 652 are obtained by cutting copper pipes; the valve structure 67 is obtained by cutting stainless steel rods .
- the assembly method includes: S1: Press the collar 30 of the cut-off valve into the valve tube 10 of the cut-off valve; One connecting pipe 641, the second connecting pipe 642 and the air valve are correspondingly pressed into the first port 13, the second port 14 and the air port 16 of the valve tube 10, and the base 20 of the shut-off valve is connected to the valve tube 10 by spot welding; S2: connect S1 Brazing in the overall furnace of the assembled structure in the middle; S3: Set the first gasket 61, the second gasket 63 and the sealing member 62 of the stop valve on the valve core 40 of the stop valve; S4: Assemble in S3 The whole structure is put into the valve tube 10; S5: Press the briquetting block 50 of the shut-off valve into the valve tube 10, and then connect the briquetting block 50 and the valve tube 10 by laser welding or argon arc welding.
- the collar 30, the first connecting pipe 641, the second connecting pipe 642 and the valve structure 67 are respectively pressed into the corresponding positions, the base 20 and the valve pipe 10 are connected by spot welding, and the assembled structure can be brazed in the furnace.
- welding the assembly is more convenient, and the connection is firm, wherein the welding ambient temperature is 1020 ° C ⁇ 1040 ° C; then the first gasket 61, the second gasket 63 and the sealing member 62 are set on the valve core 40 of the stop valve, Put it into the valve tube 10; press the briquetting block 50 into the valve tube 10, and connect the briquetting block 50 and the valve tube 10 by laser welding or argon arc welding, so that the connection is more stable and firm.
- the assembly method also includes: performing a water inspection and sealing test on the above-assembled globe valve to ensure the tightness of the globe valve; drying the globe valve, and finally installing the first valve cover 661, the second valve cover 662 and the third The valve cover 663 ensures that the shut-off valve avoids external interference.
- Embodiment 2 of the present application provides a shut-off valve
- the base 20 is an integral structure
- the base 20 includes a guide tube 21 and a mounting seat 22 connected to each other
- the guide tube 21 penetrates into the valve tube 10
- the mounting seat 22 blocks the opening of the blocking end 12
- the side wall of the guide pipe 21 has an avoidance port 211, which communicates with the second interface 14, and the opening at the end of the guide pipe 21 forms a valve port 31,
- the valve port 31 is located between the first port 13 and the second port 14 .
- valve body is set into a separate structure by setting the valve tube 10 and the base 20, and the valve tube 10 and the base 20 are processed separately and then connected to form the overall structure of the valve body, which reduces the processing of the valve body. Difficulty; the base 20 is set as an integrated structure, which is convenient for processing and assembly; the material of the valve tube 10 and the base 20 is set to stainless steel, which reduces the production cost.
- the connection or disconnection between the first port 13 and the second port 14 can be realized, that is, the valve port is opened or closed; It plays a guiding role; the avoidance port 211 is set to communicate with the second interface 14, which can ensure that the fluid flows into the cavity of the valve tube 10 smoothly.
- the size of the mounting seat 22 is larger than the outer diameter of the valve tube 10 ; the flow area of the avoidance port 211 is not smaller than the flow area of the second interface 14 .
- the guide pipe 21 includes a pipe body 212 and an annular protruding ring 213 arranged at one end of the pipe body 212, the other end of the pipe body 212 is connected to the mounting seat 22, the escape port 211 is located in the pipe body 212, the outer wall of the pipe body 212 and the valve
- the inner wall of the pipe 10 is connected, the outer diameter of the annular protruding ring 213 is smaller than the outer diameter of the pipe body 212 , and the opening of the annular protruding ring 213 forms the valve port 31 .
- the sealing effect of the valve port 31 can be better improved.
- the other end of the tube body 212 is connected to the mounting seat 22.
- This connection method can be brazed, which can ensure a more stable and reliable connection; the outer wall of the tube body 212 is connected to the inner wall of the valve tube 10.
- This connection method can also be used Brazed, stable and reliable.
- the space in the guide tube 21 between the avoidance port 211 and the blocking end 12 forms the accommodation chamber 23 .
- the accommodation chamber 23 By setting the accommodation chamber 23 in the space between the second interface 14 and the blocking end 12, when the valve port 31 is opened, the fluid flows into the second interface 14 and enters the accommodation chamber 23, which can relieve the kinetic energy of the fluid and thus play a buffering role. , to make the fluid flow more stable.
- the opening of the first annular groove 43 faces the inner wall of the valve pipe 10
- the opening of the second annular groove 44 faces the guide pipe 21 .
- the mounting base 22 has two through holes, and the two through holes are arranged on the mounting base 22 in parallel. By setting two through holes, it is convenient to install with external structures.
- the processing method includes: using a flanging machine to turn out multiple flanging openings on the side wall of the stainless steel pipe to process the cut-off valve
- the valve tube 10 of the stop valve; the stainless steel rod is machined to process the base 20 of the globe valve; the stainless steel rod is cold heading and cut to process the valve core 40 of the stop valve; the stainless steel rod or stainless steel tube is cut , to process the briquetting block 50 of the shut-off valve.
- the plurality of flanged ports include a first port 13 , a second port 14 and a vent 16 .
- existing stainless steel pipes, stainless steel rods and stainless steel plates can be used for parts processing, which reduces processing difficulty and material cost.
- the stainless steel pipe is flanged by a flanging machine, and the valve pipe 10 of the stop valve can be processed; the valve core 40 can be obtained by cold heading and cutting of the stainless steel rod; It can be obtained by cutting.
- the processing method also includes: the first connecting pipe 641 and the second connecting pipe 642 are obtained by cutting stainless steel pipes; the third connecting pipe 651 and the fourth connecting pipe 652 are obtained by cutting copper pipes; the valve structure 67 is obtained by cutting stainless steel rods .
- the assembly method includes: S1: Press the guide pipe 21 of the base 20 of the cut-off valve into the valve pipe 10 of the cut-off valve, insert the stop valve The first connecting pipe 641, the second connecting pipe 642 and the air valve of the valve are correspondingly pressed into the first port 13, the second port 14 and the vent 16 of the valve tube 10; S2: Brazing the integral structure assembled in S1 in the furnace; S3: Set the first sealing gasket 61, the second sealing gasket 63 and the sealing member 62 of the stop valve on the valve core 40 of the stop valve; S4: Put the assembled structure in S3 into the valve tube 10 as a whole; S5 : Press the briquetting block 50 of the shut-off valve into the valve pipe 10, and then connect the briquetting block 50 and the valve pipe 10 by laser welding or argon arc welding.
- the guide pipe 21, the first connecting pipe 641, the second connecting pipe 642 and the valve structure 67 are respectively pressed into the corresponding positions, and the assembled structure can be brazed in the furnace as a whole, which makes the assembly more convenient and the connection firm;
- the first sealing gasket 61, the second sealing gasket 63 and the sealing member 62 are sleeved on the valve core 40 of the shut-off valve and packed into the valve tube 10;
- the briquetting block 50 is pressed into the valve tube 10 and welded by laser welding or Argon arc welding connects the briquetting block 50 and the valve pipe 10, and the connection is more stable and firm.
- the welding ambient temperature is 1020°C to 1040°C.
- the assembly method also includes: performing a water test on the assembled stop valve to ensure the sealing performance of the stop valve; and drying the stop valve.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
Description
Claims (15)
- 一种截止阀,其特征在于,包括:阀管(10),所述阀管(10)的两端分别为操作端(11)和封堵端(12),所述阀管(10)的侧壁上具有第一接口(13)和第二接口(14),所述第一接口(13)和所述第二接口(14)均和所述阀管(10)的腔体连通,所述第二接口(14)相对于所述第一接口(13)靠近所述封堵端(12),所述阀管(10)内位于所述第二接口(14)和所述封堵端(12)之间的空间形成缓冲室(15);底座(20),所述底座(20)用于封堵所述封堵端(12)的开口;套环(30),固定在所述阀管(10)的腔体内,所述套环(30)的外壁和所述阀管(10)的内壁密封配合,所述套环(30)位于所述第一接口(13)和所述第二接口(14)之间,所述套环(30)具有阀口(31);阀芯(40),可移动地设置在所述阀管(10)的腔体内,以关闭或打开所述阀口(31),所述阀芯(40)位于所述套环(30)朝向所述操作端(11)的一侧;其中,所述阀管(10)和所述底座(20)均为不锈钢材质。
- 根据权利要求1所述的截止阀,其特征在于,所述阀芯(40)的外壁上具有外螺纹(41),所述阀芯(40)内具有操作部(42),所述操作部(42)设在背离所述阀口(31)的一端,所述截止阀还包括:压块(50),设置在所述阀管(10)的腔体内,所述压块(50)的外壁和所述阀管(10)的内壁固定连接,所述压块(50)具有内螺纹(51),所述内螺纹(51)和所述外螺纹(41)配合;所述套环(30)为不锈钢材质,和/或所述阀芯(40)为不锈钢材质,和/或所述压块(50)为不锈钢材质。
- 根据权利要求2所述的截止阀,其特征在于,所述压块(50)朝向所述阀口(31)的一侧具有环形凹槽(52),所述截止阀还包括第一密封垫(61),所述第一密封垫(61)套设在所述阀芯(40)上,所述第一密封垫(61)和所述环形凹槽(52)的周缘止挡配合。
- 根据权利要求1所述的截止阀,其特征在于,所述阀芯(40)的侧壁具有第一环形槽(43)和第二环形槽(44),所述截止阀还包括密封件(62)和第二密封垫(63),所述密封件(62)位于所述第一环形槽(43)内,所述密封件(62)和所述阀管(10)的内壁密封配合,所述第二密封垫(63)位于所述第二环形槽(44)内;其中,所述阀口(31)关闭的情况下,所述第二密封垫(63)和所述阀口(31)的周缘抵接。
- 根据权利要求4所述的截止阀,其特征在于,所述阀芯(40)包括依次连接的第一杆段(45)、第二杆段(46)和第三杆段(47),所述第二杆段(46)的直径大于所述第一杆段(45)、所述第三杆段(47)的直径,所述第三杆段(47)的直径小于所述阀口(31)的直径,所述第二杆段(46)的两端分别设置有所述第一环形槽(43)和所述第二环形 槽(44),其中,所述第一环形槽(43)的开口朝向所述阀管(10)的内壁,所述第二环形槽(44)的开口朝向所述套环(30)。
- 根据权利要求4所述的截止阀,其特征在于,所述套环(30)包括套体(32)和设置在所述套体(32)一端的环形凸筋(33),所述套体(32)的外壁和所述阀管(10)的内壁连接,所述环形凸筋(33)的外径小于所述套体(32)的外径,所述环形凸筋(33)的开口形成所述阀口(31);其中,所述阀口(31)关闭的情况下,所述第二密封垫(63)和所述环形凸筋(33)抵接。
- 根据权利要求1所述的截止阀,其特征在于,所述截止阀还包括:第一接管(641),所述第一接管(641)的一端和所述第一接口(13)连接,所述第一接管(641)为不锈钢材质;第二接管(642),所述第二接管(642)的一端和所述第二接口(14)连接,所述第二接管(642)和所述第一接管(641)平行设置,所述第二接管(642)为不锈钢材质;第三接管(651),所述第三接管(651)套设在所述第一接管(641)远离所述第一接口(13)的一端;第四接管(652),所述第四接管(652)套设在所述第二接管(642)远离所述第二接口(14)的一端;第一阀盖(661)、第二阀盖(662)和第三阀盖(663),所述第一阀盖(661)盖住所述阀管(10)的操作端(11),所述第二阀盖(662)盖住所述第三接管(651)的一端,所述第三阀盖(663)盖住所述第四接管(652)的一端。
- 根据权利要求1所述的截止阀,其特征在于,所述阀管(10)的侧壁上还具有通气口(16),所述通气口(16)和所述阀管(10)的腔体连通,所述截止阀还包括气门结构(67),所述气门结构(67)和所述通气口(16)连接。
- 根据权利要求1所述的截止阀,其特征在于,所述底座(20)为一体结构,所述底座(20)包括相互连接的引导管(21)和安装座(22),所述引导管(21)穿入所述阀管(10)的腔体内,所述安装座(22)封堵所述封堵端(12)的开口,所述引导管(21)的侧壁上具有避让口(211),所述避让口(211)和所述第二接口(14)连通,所述引导管(21)端部的开口形成阀口(31),所述阀口(31)位于所述第一接口(13)和所述第二接口(14)之间。
- 根据权利要求9所述的截止阀,其特征在于,在所述阀管(10)的径向上,所述安装座(22)的尺寸大于所述阀管(10)的外径;所述避让口(211)的流通面积不小于所述第二接口(14)的流通面积。
- 根据权利要求9所述的截止阀,其特征在于,所述引导管(21)包括管体(212)和设置在所述管体(212)一端的环形凸环(213),所述管体(212)的另一端和所述安装座(22) 连接,所述避让口(211)位于所述管体(212),所述管体(212)的外壁和所述阀管(10)的内壁连接,所述环形凸环(213)的外径小于所述管体(212)的外径,所述环形凸环(213)的开口形成所述阀口(31)。
- 根据权利要求9所述的截止阀,其特征在于,所述引导管(21)内位于所述避让口(211)和所述封堵端(12)之间的空间形成容纳室(23)。
- 一种加工方法,用于加工权利要求1至12中任一项所述的截止阀,其特征在于,所述加工方法包括:使用翻边机在不锈钢管的侧壁上翻出多个翻边口,以加工出所述截止阀的阀管(10);对不锈钢棒或不锈钢管进行冷镦和切削加工,以加工出所述截止阀的套环(30);对不锈钢棒进行冷镦和切削加工,以加工出所述截止阀的阀芯(40);对不锈钢棒或不锈钢管进行切削加工,以加工出所述截止阀的压块(50);对不锈钢板进行冲压或对不锈钢棒进行机加工,以加工出所述截止阀的底座(20)。
- 一种装配方法,用于装配权利要求1至8中任一项所述的截止阀,其特征在于,所述装配方法包括:S1:将所述截止阀的套环(30)压入所述截止阀的阀管(10)内,将所述截止阀的第一接管(641)、第二接管(642)和气门嘴对应压入所述阀管(10)的第一接口(13)、第二接口(14)和通气口(16),将所述截止阀的底座(20)和所述阀管(10)点焊连接;S2:将S1中装配好的结构整体炉中钎焊;S3:将所述截止阀的第一密封垫(61)、第二密封垫(63)和密封件(62)套设在所述截止阀的阀芯(40)上;S4:将S3中装配好的结构整体装入所述阀管(10)内;S5:将所述截止阀的压块(50)压入所述阀管(10)内,然后通过激光焊接或氩弧焊将所述压块(50)和所述阀管(10)连接。
- 一种装配方法,用于装配权利要求9至12中任一项所述的截止阀,其特征在于,所述装配方法包括:S1:将所述截止阀的底座(20)的引导管(21)压入所述截止阀的阀管(10)内,将所述截止阀的第一接管(641)、第二接管(642)和气门嘴对应压入所述阀管(10)的第一接口(13)、第二接口(14)和通气口(16);S2:将S1中装配好的结构整体炉中钎焊;S3:将所述截止阀的第一密封垫(61)、第二密封垫(63)和密封件(62)套设在所述截止阀的阀芯(40)上;S4:将S3中装配好的结构整体装入所述阀管(10)内;S5:将所述截止阀的压块(50)压入所述阀管(10)内,然后通过激光焊接或氩弧焊将所述压块(50)和所述阀管(10)连接。
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CN202111398144.3A CN116146717A (zh) | 2021-11-23 | 2021-11-23 | 截止阀、加工方法及装配方法 |
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CN216742841U (zh) * | 2021-11-23 | 2022-06-14 | 浙江盾安人工环境股份有限公司 | 截止阀 |
CN216742842U (zh) * | 2021-11-23 | 2022-06-14 | 浙江盾安人工环境股份有限公司 | 截止阀 |
CN216742843U (zh) * | 2021-11-23 | 2022-06-14 | 浙江盾安人工环境股份有限公司 | 截止阀 |
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2022
- 2022-10-25 WO PCT/CN2022/127405 patent/WO2023093424A1/zh active Application Filing
- 2022-10-25 KR KR1020247015657A patent/KR20240089603A/ko unknown
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DE19527760A1 (de) * | 1995-07-28 | 1997-01-30 | Schmidt & Lenhardt Gmbh & Co | Absperrventil |
CN203115154U (zh) * | 2012-12-11 | 2013-08-07 | 丹佛斯(天津)有限公司 | 柱式截止阀 |
CN104180064A (zh) * | 2013-05-24 | 2014-12-03 | 浙江三花股份有限公司 | 一种截止阀 |
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CN216742841U (zh) * | 2021-11-23 | 2022-06-14 | 浙江盾安人工环境股份有限公司 | 截止阀 |
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CN216742843U (zh) * | 2021-11-23 | 2022-06-14 | 浙江盾安人工环境股份有限公司 | 截止阀 |
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