CN103644307A - High-temperature and high-pressure temperature and pressure reducing valve - Google Patents

High-temperature and high-pressure temperature and pressure reducing valve Download PDF

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Publication number
CN103644307A
CN103644307A CN201310675270.8A CN201310675270A CN103644307A CN 103644307 A CN103644307 A CN 103644307A CN 201310675270 A CN201310675270 A CN 201310675270A CN 103644307 A CN103644307 A CN 103644307A
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CN
China
Prior art keywords
valve
valve body
temperature
cage
pressure
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201310675270.8A
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Chinese (zh)
Inventor
张文福
陈朝学
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN JINYU HUAJI CO Ltd
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SICHUAN JINYU HUAJI CO Ltd
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
Application filed by SICHUAN JINYU HUAJI CO Ltd filed Critical SICHUAN JINYU HUAJI CO Ltd
Priority to CN201310675270.8A priority Critical patent/CN103644307A/en
Publication of CN103644307A publication Critical patent/CN103644307A/en
Pending legal-status Critical Current

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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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Sliding Valves (AREA)

Abstract

The invention relates to a high-temperature and high-pressure temperature and pressure reducing valve. The high-temperature and high-pressure temperature and pressure reducing valve is mainly used for urea production and has the advantages of being safe, reliable and long in service life. The high-temperature and high-pressure temperature and pressure reducing valve comprises an actuating mechanism, a valve cover and a valve body, wherein the actuating mechanism, the valve cover and the valve body are sequentially arranged from top to bottom. An inflow passage, an outflow passage and a valve body cavity are formed in the valve body, and both the inflow channel and the outflow channel are communicated with the valve body cavity; a valve rod capable of stretching into the valve body cavity is arranged in the valve cover and the valve body, and the upper end of the valve rod is connected with a transmission gear of the actuating mechanism; a valve cage is arranged in the valve body cavity, a valve element matched with the valve cage is arranged in the valve cage and fixed to the lower end of the valve rod, a sealing ring groove is formed in the guide part of the valve element, and a sealing ring is installed on the sealing ring groove. Because the sealing ring is adopted for sealing the portion between the valve cage and the valve element, impurities in steam can not enter a gap between the valve element and the valve cage, and accordingly the situation that the high-temperature and high-pressure pressure and temperature reducing valve fails or even is damaged because the valve element and the valve cage are clamped with each other is avoided.

Description

High Temperature High Pressure steam converter valve
Technical field
The present invention relates to a kind of valve, especially a kind of High Temperature High Pressure steam converter valve.
Background technique
In urea production, need the lower steam source of a large amount of pressure and temperatures to produce, but supply gas pressure and the temperature of the female pipe of the industrial boiler of enterprise or heat supply are generally higher now, therefore conventionally need to meet production technology vapour requirement with High Temperature High Pressure steam converter valve.
In common High Temperature High Pressure steam converter valve, the spacing of valve cage and spool is larger, and steam is when being delivered to High Temperature High Pressure steam converter valve via steam line, tends to take wrap up in the impurity such as ducted welding slag, iron filings; If these impurity are dealt with improperly, be easy to enter the gap between valve cage and spool and then cause the stuck even damage of High Temperature High Pressure steam converter valve.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly can prevents that the impurity such as welding slag, iron filings from entering the High Temperature High Pressure steam converter valve in space between valve cage and spool.
The technical solution adopted for the present invention to solve the technical problems is: High Temperature High Pressure steam converter valve, comprise the actuator setting gradually from top to bottom, valve gap and valve body, in valve body, be provided with flow channel, flow pass and valve body chamber, flow channel and flow pass are all communicated with valve body chamber, in valve gap and valve body, be provided with the valve rod that can stretch into valve body chamber, valve rod upper end is connected with the transmission device of actuator, in valve body chamber, be provided with valve cage, in valve cage, be provided with the spool coordinating with valve cage, spool is fixed on valve rod lower end, described spool targeting part is provided with closure gasket groove, seal ring is installed on closure gasket groove.
Further, the shockproof rapid groove being interrupted to have twice at described spool targeting part.
Further, described closure gasket groove has twice, between two seals annular groove, is provided with chip flute.
Further, described valve cage is provided with window.
The invention has the beneficial effects as follows: by by the clearance seal between High Temperature High Pressure steam converter valve valve cage and spool, make impurity cannot enter the gap between valve cage and spool, thereby prevented the stuck and inefficacy that High Temperature High Pressure steam converter valve causes because impurity enters, improved the working life of High Temperature High Pressure steam converter valve and made it more safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of spool and valve rod;
Fig. 3 is the structural representation of A-A section in Fig. 2;
Fig. 4 is the structural representation of valve cage.
Shown in figure: 1-actuator, 2-valve gap, 3-valve body, 31-flow channel, 32-flow pass, 33-valve body chamber, 4-valve rod, 5-valve cage, 51-window, 6-spool, 61-closure gasket groove, the shockproof rapid groove of 62-, 63-chip flute.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As Fig. 1, shown in Fig. 2, High Temperature High Pressure steam converter valve of the present invention, comprise the actuator 1 setting gradually from top to bottom, valve gap 2 and valve body 3, in valve body 3, be provided with flow channel 31, flow pass 32 and valve body chamber 33, flow channel 31 and flow pass 32 are all communicated with valve body chamber 33, in valve gap 2 and valve body 3, be provided with the valve rod 4 that can stretch into valve body chamber 33, valve rod 4 upper ends are connected with the transmission device of actuator 1, in valve body chamber 33, be provided with valve cage 5, in valve cage 5, be provided with the spool 6 coordinating with valve cage 5, spool 6 is fixed on valve rod 4 lower ends, described spool 6 targeting parts are provided with closure gasket groove 61, on closure gasket groove 61, seal ring is installed.After valve opening, the impurity carrying in a part of steam and steam can by flow channel enter valve cage 5 and be pressed against valve cage 5 and spool 6 between gap.Owing to being provided with closure gasket groove 61 and 61 being provided with seal ring on spool 6 on closure gasket groove, therefore the impurity in steam cannot enter the gap between spool 6 and valve cage 5, thereby has prevented that the High Temperature High Pressure pressure and temperature reducing defective valve that spool 6 causes together with stuck with valve cage 5 from even damaging.
As shown in Figure 2 and Figure 3, the shockproof rapid groove 62 being interrupted to have twice at described spool 6 targeting parts.Shockproof rapid groove 62 can effectively be eliminated the vibration that High Temperature High Pressure steam converter valve produces at work, and can collect and hold the impurity entering in spool 6 and valve cage 5 gaps.
As shown in Figure 2, described closure gasket groove 61 has twice, is provided with chip flute 63 between two seals annular groove 61.Chip flute 63 plays a part to collect impurity, once there be a small amount of impurity to enter into the gap between spool 6 and valve cage 5 by seal ring, chip flute 63 can be collected, thereby avoided impurity to be stuck between spool 6 and valve cage 5, causes valve stuck.
As shown in Figure 4, described valve cage 5 is provided with window 51.Adopt after such structure, when steam enters next process through decompression cooling step by flow pass discharge, impurity can be discharged from window 51; Because the area of window 51 is larger, therefore ducted solid impurity as welding slag, iron filings etc. when being discharged by window, can not cause window 51 obstructions and valve stuck, can make High Temperature High Pressure steam converter valve more safe and reliable.

Claims (4)

1. High Temperature High Pressure steam converter valve, comprise the actuator (1) setting gradually from top to bottom, valve gap (2) and valve body (3), in valve body (3), be provided with flow channel (31), flow pass (32) and valve body chamber (33), flow channel (31) and flow pass (32) are all communicated with valve body chamber (33), in valve gap (2) and valve body (3), be provided with the valve rod (4) that can stretch into valve body chamber (33), valve rod (4) upper end is connected with the transmission device of actuator (1), in valve body chamber (33), be provided with valve cage (5), in valve cage (5), be provided with the spool (6) coordinating with valve cage (5), spool (6) is fixed on valve rod (4) lower end, described spool (6) targeting part is provided with closure gasket groove (61), on closure gasket groove (61), seal ring is installed.
2. High Temperature High Pressure steam converter valve as claimed in claim 1, is characterized in that: the shockproof rapid groove (62) being interrupted to have twice at described spool (6) targeting part.
3. High Temperature High Pressure steam converter valve as claimed in claim 1, is characterized in that: described closure gasket groove (61) has twice, is provided with chip flute (63) between two seals annular groove (61).
4. the High Temperature High Pressure steam converter valve as described in claim 1,2 or 3, is characterized in that: described valve cage (5) is provided with window (51).
CN201310675270.8A 2013-12-07 2013-12-07 High-temperature and high-pressure temperature and pressure reducing valve Pending CN103644307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310675270.8A CN103644307A (en) 2013-12-07 2013-12-07 High-temperature and high-pressure temperature and pressure reducing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310675270.8A CN103644307A (en) 2013-12-07 2013-12-07 High-temperature and high-pressure temperature and pressure reducing valve

Publications (1)

Publication Number Publication Date
CN103644307A true CN103644307A (en) 2014-03-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310675270.8A Pending CN103644307A (en) 2013-12-07 2013-12-07 High-temperature and high-pressure temperature and pressure reducing valve

Country Status (1)

Country Link
CN (1) CN103644307A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544177A1 (en) * 1984-12-14 1986-06-26 TLV Co. Ltd., Tokio/Tokyo PRESSURE REDUCER VALVE
CN201391607Y (en) * 2009-04-22 2010-01-27 大连亨利测控仪表工程有限公司 Cage type back-pressure pilot-operated control valve
CN201916566U (en) * 2010-12-31 2011-08-03 无锡华益电力阀门有限公司 Large-bore medium-pressure regulating valve structure
CN202402784U (en) * 2011-10-08 2012-08-29 河南省中原大化集团有限责任公司 Angle type controller with damping function
CN202418903U (en) * 2011-12-29 2012-09-05 苏州德兰能源科技有限公司 Guide chip hold adjusting valve core
CN202884084U (en) * 2012-11-05 2013-04-17 中国石油天然气股份有限公司长庆石化分公司 Temperature and pressure reducer adjusting valve
CN203585356U (en) * 2013-12-07 2014-05-07 四川锦宇化机有限公司 High-temperature and high-pressure reduction valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544177A1 (en) * 1984-12-14 1986-06-26 TLV Co. Ltd., Tokio/Tokyo PRESSURE REDUCER VALVE
CN201391607Y (en) * 2009-04-22 2010-01-27 大连亨利测控仪表工程有限公司 Cage type back-pressure pilot-operated control valve
CN201916566U (en) * 2010-12-31 2011-08-03 无锡华益电力阀门有限公司 Large-bore medium-pressure regulating valve structure
CN202402784U (en) * 2011-10-08 2012-08-29 河南省中原大化集团有限责任公司 Angle type controller with damping function
CN202418903U (en) * 2011-12-29 2012-09-05 苏州德兰能源科技有限公司 Guide chip hold adjusting valve core
CN202884084U (en) * 2012-11-05 2013-04-17 中国石油天然气股份有限公司长庆石化分公司 Temperature and pressure reducer adjusting valve
CN203585356U (en) * 2013-12-07 2014-05-07 四川锦宇化机有限公司 High-temperature and high-pressure reduction valve

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Application publication date: 20140319