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 PDF

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Publication number
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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WO
WIPO (PCT)
Prior art keywords
valve
tube
port
shut
connecting pipe
Prior art date
Application number
PCT/CN2022/127405
Other languages
English (en)
French (fr)
Inventor
陈狄永
寿杰
冯光华
陈玮能
骆斌
楼峰
袁兴洋
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202122941454.7U external-priority patent/CN216742843U/zh
Priority claimed from CN202122903993.1U external-priority patent/CN216742842U/zh
Priority claimed from CN202111398144.3A external-priority patent/CN116146717A/zh
Priority claimed from CN202111398222.XA external-priority patent/CN116146718A/zh
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to KR1020247015657A priority Critical patent/KR20240089603A/ko
Publication of WO2023093424A1 publication Critical patent/WO2023093424A1/zh

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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
    • 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
    • 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
    • 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

公开了一种截止阀，其包括：阀管（10），两端分别为操作端（11）和封堵端（12），阀管的侧壁上具有第一接口（13）和第二接口（14），第一接口和第二接口均和阀管的腔体连通，第二接口相对于第一接口靠近封堵端，阀管内位于第二接口和封堵端之间的空间形成缓冲室（15）；底座（20），底座用于封堵封堵端的开口；套环（30），固定在阀管的腔体内，套环的外壁和阀管的内壁密封配合，套环位于第一接口和第二接口之间，套环具有阀口（31）；阀芯（40），可移动地设置在阀管的腔体内，以关闭或打开阀口，阀芯位于套环朝向操作端的一侧；阀管和底座均为不锈钢材质。该截止阀能够解决现有技术中截止阀流体流动不平稳、加工困难及成本高的问题。还公开了该截止阀的加工方法及装配方法。

Description

截止阀、加工方法及装配方法 技术领域
本申请涉及截止阀技术领域，具体而言，涉及一种截止阀、加工方法及装配方法。
背景技术
目前，现有的截止阀通常由阀体、阀芯等结构组成，通过阀芯在阀体内的上下移动来实现打开或关闭阀口。现有技术中，当阀口打开时，流体进入阀体内，动能较大，会导致流体流动不平稳，由于阀体整体结构较为复杂，导致阀体在实际加工及截止阀整体装配时往往比较困难，从而导致了加工成本的增加；并且阀体、阀芯的材质通常为黄铜，黄铜材料成本比较高。
申请内容
本申请提供了一种截止阀、加工方法及装配方法，以解决现有技术中的截止阀流体流动不平稳、加工困难及成本高的问题。
为了解决上述问题，根据本申请的一个方面，本申请提供了一种截止阀，包括：阀管，阀管的两端分别为操作端和封堵端，阀管的侧壁上具有第一接口和第二接口，第一接口和第二接口均和阀管的腔体连通，第二接口相对于第一接口靠近封堵端，阀管内位于第二接口和封堵端之间的空间形成缓冲室；底座，底座用于封堵封堵端的开口；套环，固定在阀管的腔体内，套环的外壁和阀管的内壁密封配合，套环位于第一接口和第二接口之间，套环具有阀口；阀芯，可移动地设置在阀管的腔体内，以关闭或打开阀口，阀芯位于套环朝向操作端的一侧；其中，阀管和底座均为不锈钢材质。
进一步地，阀芯的外壁上具有外螺纹，阀芯内具有操作部，操作部设在背离阀口的一端，截止阀还包括：压块，设置在阀管的腔体内，压块的外壁和阀管的内壁固定连接，压块具有内螺纹，内螺纹和外螺纹配合。
进一步地，套环为不锈钢材质，和/或阀芯为不锈钢材质，和/或压块为不锈钢材质。
进一步地，压块朝向阀口的一侧具有环形凹槽，截止阀还包括第一密封垫，第一密封垫套设在阀芯上，第一密封垫和环形凹槽的周缘止挡配合。
进一步地，阀芯的侧壁具有第一环形槽和第二环形槽，截止阀还包括密封件和第二密封垫，密封件位于第一环形槽内，密封件和阀管的内壁密封配合，第二密封垫位于第二环形槽内；其中，阀口关闭的情况下，第二密封垫和阀口的周缘抵接。
进一步地，阀芯包括依次连接的第一杆段、第二杆段和第三杆段，第二杆段的直径大于第一杆段、第三杆段的直径，第三杆段的直径小于阀口的直径，第二杆段的两端分别设置有 第一环形槽和第二环形槽，其中，第一环形槽的开口朝向阀管的内壁，第二环形槽的开口朝向套环。
进一步地，套环包括套体和设置在套体一端的环形凸筋，套体的外壁和阀管的内壁连接，环形凸筋的外径小于套体的外径，环形凸筋的开口形成阀口；其中，阀口关闭的情况下，第二密封垫和环形凸筋抵接。
进一步地，截止阀还包括：第一接管，第一接管的一端和第一接口连接，第一接管为不锈钢材质；第二接管，第二接管的一端和第二接口连接，第二接管和第一接管平行设置，第二接管为不锈钢材质。
进一步地，截止阀还包括：第三接管，第三接管套设在第一接管远离第一接口的一端；第四接管，第四接管套设在第二接管远离第二接口的一端。
进一步地，截止阀还包括第一阀盖、第二阀盖和第三阀盖，第一阀盖盖住阀管的操作端，第二阀盖盖住第三接管的一端，第三阀盖盖住第四接管的一端。
进一步地，阀管的侧壁上还具有通气口，通气口和阀管的腔体连通，截止阀还包括气门结构，气门结构和通气口连接。
根据本申请的另一方面，提供了一种加工方法，用于加工上述的截止阀，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，以加工出截止阀的阀管；对不锈钢棒或不锈钢管进行冷镦和切削加工，以加工出截止阀的套环；对不锈钢棒进行冷镦和切削加工，以加工出截止阀的阀芯；对不锈钢棒进行切削加工，以加工出截止阀的压块；对不锈钢板进行冲压，以加工出截止阀的底座。
根据本申请的另一方面，提供了一种装配方法，用于装配上述的截止阀，装配方法包括：S1：将截止阀的套环压入截止阀的阀管内，将截止阀的第一接管、第二接管和气门嘴对应压入阀管的第一接口、第二接口和通气口，将截止阀的底座和阀管点焊连接；S2：将S1中装配好的结构整体炉中钎焊；S3：将截止阀的第一密封垫、第二密封垫和密封件套设在截止阀的阀芯上；S4：将S3中装配好的结构整体装入阀管内；S5：将截止阀的压块压入阀管内，然后通过激光焊接或氩弧焊将压块和阀管连接。
应用本申请的技术方案，提供了一种截止阀，包括：阀管，阀管的两端分别为操作端和封堵端，阀管的侧壁上具有第一接口和第二接口，第一接口和第二接口均和阀管的腔体连通，第二接口相对于第一接口靠近封堵端，阀管内位于第二接口和封堵端之间的空间形成缓冲室；底座，底座用于封堵封堵端的开口；套环，固定在阀管的腔体内，套环的外壁和阀管的内壁密封配合，套环位于第一接口和第二接口之间，套环具有阀口；阀芯，可移动地设置在阀管的腔体内，以关闭或打开阀口，阀芯位于套环朝向操作端的一侧；其中，阀管和底座均为不锈钢材质。采用该方案，通过在第二接口和封堵端之间的空间设置缓冲室，当阀口打开时，流体流入阀管内后进入缓冲室，能够缓解流体的动能，从而起到缓冲的作用，让流体流动的更加平稳；通过设置底座和阀管连接，使截止阀加工及整体装配起来更加容易，该连接方式 可采用钎焊，使用钎焊能够保证连接更加稳定、可靠；将阀管和底座的材质设置为不锈钢，减小了生产成本。在本方案中，通过阀芯在阀管的腔体内上下移动，可以实现第一接口和第二接口连通或断开，即打开或关闭阀口；设置套环与阀管的腔体连接，降低了加工难度，该连接方式可采用钎焊，使用钎焊能够保证连接更加稳定、可靠，且套环的外壁能够与阀管的内壁密封配合，提高了阀口处的密封性。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了本申请的实施例一提供的截止阀打开时的剖视图；
图2示出了图1中截止阀关闭时的剖视图；
图3示出了图1中套环的剖视图；
图4示出了图1中压块的剖视图；
图5示出了图1中截止阀的***图；
图6示出了图1中阀芯的结构图；
图7示出了图6中阀芯的剖视图；
图8示出了本申请的实施例二提供的截止阀的***图；
图9示出了图8中截止阀的剖视图；
图10示出了图9中截止阀在另一位置的剖视图；
图11示出了图8中阀座的结构图；
图12示出了图11中阀座的剖视图；
图13示出了图8中阀芯的结构图；
图14示出了图13中阀芯的剖视图；
图15示出了图8中压块的剖视图。
其中，上述附图包括以下附图标记：
10、阀管；11、操作端；12、封堵端；13、第一接口；14、第二接口；15、缓冲室；16、通气口；
20、底座；21、引导管；211、避让口；212、管体；213、环形凸环；22、安装座；23、容纳室；
30、套环；31、阀口；32、套体；33、环形凸筋；
40、阀芯；41、外螺纹；42、操作部；43、第一环形槽；44、第二环形槽；45、第一杆段；46、第二杆段；47、第三杆段；
50、压块；51、内螺纹；52、环形凹槽；
61、第一密封垫；62、密封件；63、第二密封垫；641、第一接管；642、第二接管；651、第三接管；652、第四接管；661、第一阀盖；662、第二阀盖；663、第三阀盖；67、气门结构。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1至图7所示，本申请的实施例一提供了一种截止阀，包括：阀管10，阀管10的两端分别为操作端11和封堵端12，阀管10的侧壁上具有第一接口13和第二接口14，第一接口13和第二接口14均和阀管10的腔体连通，第二接口14相对于第一接口13靠近封堵端12，阀管10内位于第二接口14和封堵端12之间的空间形成缓冲室15；底座20，和封堵端12连接，以封堵封堵端12的开口；套环30，固定在阀管10的腔体内，套环30的外壁和阀管10的内壁密封配合，套环30位于第一接口13和第二接口14之间，套环30具有阀口31；阀芯40，可移动地设置在阀管10的腔体内，以关闭或打开阀口31，阀芯40位于套环30朝向操作端11的一侧；其中，阀管10和底座20均为不锈钢材质。
采用该方案，通过在第二接口14和封堵端12之间的空间设置缓冲室15，当阀口31打开时，流体流入第二接口14进入缓冲室15，能够缓解流体的动能，从而起到缓冲的作用，让流体流动的更加平稳；通过设置底座20和阀管10连接，使截止阀加工及整体装配起来更加容易，该连接方式可采用钎焊，使用钎焊能够保证连接更加稳定、可靠；将阀管10和底座20的材质设置为不锈钢，减小了生产成本。在本方案中，通过阀芯40在阀管10的腔体内上下移动，可以实现第一接口13和第二接口14连通或断开，即打开或关闭阀口31；设置套环30与阀管10的腔体连接，降低了加工难度，该连接方式可采用钎焊，使用钎焊能够保证连接更加稳定、可靠，且套环30的外壁能够与阀管10的内壁密封配合，提高了阀口31处的密封性。
可选地，阀管10的侧壁上第一接口13和第二接口14可采用翻边的方式加工，这样加工起来更加容易。
其中，阀芯40的外壁上具有外螺纹41，阀芯40内具有操作部42，操作部42的开口背离阀口31，截止阀还包括：压块50，设置在阀管10的腔体内，压块50的外壁和阀管10的 内壁固定连接，压块50具有内螺纹51，内螺纹51和外螺纹41配合。采用上述设置，能够使阀芯40在阀管10的腔体内上下移动，从而实现打开或关闭阀口31。其中，操作部42为六边形结构或四边形结构，方便用户操作。
在本实施例中，套环30为不锈钢材质，和/或阀芯40为不锈钢材质，和/或压块50为不锈钢材质。将套环30、阀芯40和压块50均设置成不锈钢材质，减小了生产成本。
进一步地，压块50朝向阀口31的一侧具有环形凹槽52，截止阀还包括第一密封垫61，第一密封垫61套设在阀芯40上，第一密封垫61和环形凹槽52的周缘止挡配合。通过在压块50内设置环形凹槽52，能够将第一密封垫61的一部分嵌入到环形凹槽52内，当阀口31打开时，阀芯40的一端朝向环形凹槽52移动，环形凹槽52的周缘能够对第一密封垫61起到限位作用，防止阀芯40脱出；且阀芯40与阀管10密封配合，能够防止流体泄露。
具体地，阀芯40的侧壁具有第一环形槽43和第二环形槽44，截止阀还包括密封件62和第二密封垫63，密封件62位于第一环形槽43内，密封件62和阀管10的内壁密封配合，第二密封垫63位于第二环形槽44内；其中，阀口31关闭的情况下，第二密封垫63和阀口31的周缘抵接。
在本方案中，密封件62与第一环形槽43的内壁抵接，并且密封件62与阀管10的内壁密封配合，提高了阀芯40和阀管10的密封性；第二密封垫63与第二环形槽44的内壁抵接，提高了阀芯40和阀管10的密封性。其中，第二环形槽44可理解为环形台阶。其中，当阀口31关闭时，第二密封垫63能够和阀口31的周缘抵接，实现了阀芯40与阀口31之间的软密封，有效减小了用户的作业强度。在本实施例中，密封件为密封圈。其中，密封件也可以为组合密封件。
其中，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，第二杆段46的直径大于第一杆段45、第三杆段47的直径，第三杆段47的直径小于阀口31的直径，第二杆段46的两端分别设置有第一环形槽43和第二环形槽44，其中，第一环形槽43的开口朝向阀管10的内壁，第二环形槽44的开口朝向套环30。采用上述设置，将第三杆段47的直径设置成小于阀口31的直径，便于和阀口31配合；将第二杆段46的直径设置成大于第一杆段45、第三杆段47的直径，当阀口31关闭时，套环30能够对阀芯40起到止挡作用，从而限定了阀芯40的移动范围。在本方案中，第二环形槽44的开口直径小于内部直径，能够更好地将第二密封垫63嵌入，提高阀口31的密封性。
如图3所示，套环30包括套体32和设置在套体32一端的环形凸筋33，套体32的外壁和阀管10的内壁连接，环形凸筋33的外径小于套体32的外径，环形凸筋33的开口形成阀口31；其中，阀口31关闭的情况下，第二密封垫63和环形凸筋33抵接。通过设置环形凸筋33，能够更好提升阀口31的密封效果。当阀口31关闭时，环形凸筋33能够与第二密封垫63抵接，实现了阀芯40与阀口31之间的软密封。
如图5所示，截止阀还包括：第一接管641，第一接管641的一端和第一接口13连接，第一接管641为不锈钢材质；第二接管642，第二接管642的一端和第二接口14连接，第二 接管642和第一接管641平行设置，第二接管642为不锈钢材质。采用上述设置方式，便于和外界接管连通；设置第一接管641和第二接管642分别与第一接口13和第二接口14连接，该连接方式可采用钎焊，稳定、牢固；第一接管641和第二接管642分别与第一接口13和第二接口14连通，能够实现流体的流通。其中，将第一接管641和第二接管642的材质设置为不锈钢，降低了材料成本。
其中，截止阀还包括：第三接管651，第三接管651套设在第一接管641远离第一接口13的一端；第四接管652，第四接管652套设在第二接管642远离第二接口14的一端。将第三接管651和第四接管652分别套设在第一接管641和第二接管642的一端，便于与外界接管连接，提高了截止阀的便利性。其中，第三接管651和第四接管652为紫铜材质，更加便于用户连接外界接管。
进一步地，截止阀还包括第一阀盖661、第二阀盖662和第三阀盖663，第一阀盖661盖住阀管10的操作端11，第二阀盖662盖住第三接管651的一端，第三阀盖663盖住第四接管652的一端。通过设置第一阀盖661，能够盖住阀管10的一端，防止阀管10受到外界的干扰，保证工作时的安全、稳定性；第二阀盖662和第三阀盖663分别用于盖住第三接管651和第四接管652的一端，防止第三接管651和第四接管652的内腔受到外界的干扰。其中，第一阀盖661、第二阀盖662和第三阀盖663可为不锈钢或塑料材质，降低了材料成本。
具体地，阀管10的侧壁上还具有通气口16，通气口16和阀管10的腔体连通，截止阀还包括气门结构67，气门结构67和通气口16连接。通过设置气门结构67与阀管10的腔体连通，可在需要时充放气，并且能够维持截止阀内的气压的密封性，保证工作时的稳定性。其中，气门结构67可为不锈钢材质，降低材料成本。
其中，气门结构67包括：管体、气门芯和管帽，管体的一端与通气口16连接，气门芯设置在管体内，管帽用于盖住管体的另一端。其中，管体的一端与通气口16连接，连接方式可采用钎焊，稳定、可靠。
可选地，底座20包括相互垂直的底板和折板，底板和阀管10的封堵端12焊接，折板上具有通孔。通过焊接方式将底板和阀管10的封堵端12焊接连接，稳定、可靠；通过设置通孔，便于与外界结构安装。
本申请的另一实施例提供了一种加工方法，用于加工上述的截止阀，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，以加工出截止阀的阀芯40；对不锈钢棒进行切削加工，以加工出截止阀的压块50；对不锈钢板进行冲压，以加工出截止阀的底座20。
采用上述加工方法，能够采用现有的不锈钢管、不锈钢棒及不锈钢板进行零件加工，降低了加工难度和材料成本。利用翻边机将不锈钢管进行翻边加工，能够加工出截止阀的阀管10；套环30和阀芯40均可通过对不锈钢棒进行冷镦和切削加工得到；压块50通过对不锈钢 棒进行切削加工即可得到；底座20通过对不锈钢板进行冲压得到。其中，多个翻边口包括第一接口13、第二接口14和通气口16。
并且，该加工方法还包括：第一接管641和第二接管642通过不锈钢管切削加工得到；第三接管651和第四接管652通过紫铜管切削加工得到；气门结构67通过不锈钢棒切削加工得到。
本申请的另一实施例提供了一种装配方法，用于装配上述的截止阀，装配方法包括：S1：将截止阀的套环30压入截止阀的阀管10内，将截止阀的第一接管641、第二接管642和气门嘴对应压入阀管10的第一接口13、第二接口14和通气口16，将截止阀的底座20和阀管10点焊连接；S2：将S1中装配好的结构整体炉中钎焊；S3：将截止阀的第一密封垫61、第二密封垫63和密封件62套设在截止阀的阀芯40上；S4：将S3中装配好的结构整体装入阀管10内；S5：将截止阀的压块50压入阀管10内，然后通过激光焊接或氩弧焊将压块50和阀管10连接。
采用上述装配方法，将套环30、第一接管641、第二接管642和气门结构67分别压入对应位置，底座20和阀管10点焊连接，并且可将装配好的结构整体炉中钎焊，装配起来更加便利，连接牢固，其中，焊接环境温度为1020℃～1040℃；然后将第一密封垫61、第二密封垫63和密封件62套设在截止阀的阀芯40上，装入阀管10内；将压块50压入阀管10，并通过激光焊接或氩弧焊将压块50和阀管10连接，连接更加稳定、牢固。装配方法还包括：将上述装配好的截止阀，进行水检密封性测试，保证截止阀的密封性；对截止阀进行烘干，最后安装第一阀盖661、第二阀盖662和第三阀盖663，保证截止阀避免外界的干扰。
如图8至图15所示，本申请的实施例二提供了一种截止阀，底座20为一体结构，底座20包括相互连接的引导管21和安装座22，引导管21穿入阀管10的腔体内，安装座22封堵封堵端12的开口，引导管21的侧壁上具有避让口211，避让口211和第二接口14连通，引导管21端部的开口形成阀口31，阀口31位于第一接口13和第二接口14之间。
采用该方案，通过设置阀管10和底座20，从而将阀体设置成分体结构，将阀管10和底座20分别加工之后再连接，构成阀体的整体结构，这样设置降低了阀体的加工难度；将底座20设置为一体结构，便于加工和装配；将阀管10和底座20的材质设置为不锈钢，减小了生产成本。在本申请中，通过阀芯40在阀管10的腔体内上下移动，可以实现第一接口13和第二接口14连通或断开，即打开或关闭阀口；设置引导管21，能够在装配时起到导向作用；设置避让口211与第二接口14连通，能够保证流体顺利流入阀管10的腔体内。
其中，在阀管10的径向上，安装座22的尺寸大于阀管10的外径；避让口211的流通面积不小于第二接口14的流通面积。通过将安装座22的尺寸设置成大于阀管10的外径，能够保证安装座22封堵封堵端12的开口；避让口211的流通面积设置成不小于第二接口14的流通面积，便于流体顺利流通。
进一步地，引导管21包括管体212和设置在管体212一端的环形凸环213，管体212的另一端和安装座22连接，避让口211位于管体212，管体212的外壁和阀管10的内壁连接，环形凸环213的外径小于管体212的外径，环形凸环213的开口形成阀口31。
通过设置环形凸环213，且环形凸环213的外径小于管体212的外径，当阀口31关闭时，能够更好提升阀口31的密封效果。管体212的另一端与安装座22连接，该连接方式可采用钎焊，使用钎焊能够保证连接更加稳定、可靠；管体212的外壁与阀管10的内壁连接，该连接方式也可采用钎焊，稳定、可靠。
如图9所示，引导管21内位于避让口211和封堵端12之间的空间形成容纳室23。通过在第二接口14和封堵端12之间的空间设置容纳室23，当阀口31打开时，流体流入第二接口14进入容纳室23，能够缓解流体的动能，从而起到缓冲的作用，让流体流动的更加平稳。
具体地，第一环形槽43的开口朝向阀管10的内壁，第二环形槽44的开口朝向引导管21。
可选地，安装座22具有通孔，通孔为两个，两个通孔平行地设置在安装座22上。通过设置两个通孔，便于与外界结构安装。
本申请的另一实施例提供了一种加工方法，用于加工上述的截止阀，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，以加工出截止阀的阀管10；对不锈钢棒进行机加工，以加工出截止阀的底座20；对不锈钢棒进行冷镦和切削加工，以加工出截止阀的阀芯40；对不锈钢棒或不锈钢管进行切削加工，以加工出截止阀的压块50。其中，多个翻边口包括第一接口13、第二接口14和通气口16。
采用上述加工方法，能够采用现有的不锈钢管、不锈钢棒及不锈钢板进行零件加工，降低了加工难度和材料成本。利用翻边机将不锈钢管进行翻边加工，能够加工出截止阀的阀管10；阀芯40均可通过对不锈钢棒进行冷镦和切削加工得到；底座20和压块50通过对不锈钢棒进行切削加工即可得到。
并且，该加工方法还包括：第一接管641和第二接管642通过不锈钢管切削加工得到；第三接管651和第四接管652通过紫铜管切削加工得到；气门结构67通过不锈钢棒切削加工得到。
本申请的另一实施例提供了一种装配方法，用于装配上述的截止阀，装配方法包括：S1：将截止阀的底座20的引导管21压入截止阀的阀管10内，将截止阀的第一接管641、第二接管642和气门嘴对应压入阀管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：将截止阀的第一密封垫61、第二密封垫63和密封件62套设在截止阀的阀芯40上；S4：将S3中装配好的结构整体装入阀管10内；S5：将截止阀的压块50压入阀管10内，然后通过激光焊接或氩弧焊将压块50和阀管10连接。
采用上述装配方法，将引导管21、第一接管641、第二接管642和气门结构67分别压入对应位置，并且可将装配好的结构整体炉中钎焊，装配起来更加便利，连接牢固；然后将第一密封垫61、第二密封垫63和密封件62套设在截止阀的阀芯40上，装入阀管10内；将压 块50压入阀管10，并通过激光焊接或氩弧焊将压块50和阀管10连接，连接更加稳定、牢固。其中，焊接环境温度为1020℃～1040℃。装配方法还包括：将上述装配好的截止阀，进行水检密封性测试，保证截止阀的密封性；对截止阀进行烘干。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 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。
  2. 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。
  3. 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。
  4. 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。
  5. 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)。
  6. 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。
  7. 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。
  8. 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。
  9. 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。
  10. 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。
  11. 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)。
  12. 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)。
  13. 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)。
  14. 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。
  15. 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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