CN105299238A - Sleeve type regulating valve combination valve plug - Google Patents

Sleeve type regulating valve combination valve plug Download PDF

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Publication number
CN105299238A
CN105299238A CN201510497210.0A CN201510497210A CN105299238A CN 105299238 A CN105299238 A CN 105299238A CN 201510497210 A CN201510497210 A CN 201510497210A CN 105299238 A CN105299238 A CN 105299238A
Authority
CN
China
Prior art keywords
valve plug
valve
seal
cover
cavity
Prior art date
Application number
CN201510497210.0A
Other languages
Chinese (zh)
Inventor
朱新如
尤广泉
孟新凌
Original Assignee
南通市电站阀门有限公司
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
Application filed by 南通市电站阀门有限公司 filed Critical 南通市电站阀门有限公司
Priority to CN201510497210.0A priority Critical patent/CN105299238A/en
Publication of CN105299238A publication Critical patent/CN105299238A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/46Attachment of sealing rings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/52Means for additional adjustment of the rate of flow

Abstract

The invention relates to a sleeve type regulating valve combination valve plug. The sleeve type regulating valve combination valve plug comprises a valve plug main body, wherein the valve plug main body is connected with a valve rod, and a valve can be driven by the valve rod to be opened or closed; an upper seal ring is arranged at the outer side end of the upper circumference of the valve plug main body in a sleeving manner, the upper end of the upper seal ring is tightly pressed through an annular end cover, the end cover is fixed with the valve plug main body through a bolt, an annular metal wound washer is further arranged between the upper seal ring and the end cover, and an upper seal pair is jointly formed by the outer side wall of the upper seal ring and the inner wall of a cavity in a throttling cover; and a lower seal pair is jointly formed by the outer side wall of the lower circumference of the valve plug main body and the inner wall of the cavity in the throttling cover. The sleeve type regulating valve combination valve plug has the advantages that upper and lower seal surfaces of the valve plug adopt a split form, the upper seal of the valve plug has a fine vertical position regulating function, the difficulty of ensuring the processing precision of the relative positions of the upper and lower seal surfaces of the valve plug and the throttling cover is lowered, the production efficiency is improved, and meanwhile, a great seal effect is simultaneously played on the upper and lower seal surfaces.

Description

A kind of sleeve-type regulating valve combination valve plug

Technical field

The present invention relates to a kind of modulating valve, particularly a kind of sleeve-type regulating valve combination valve plug.

Background technique

Use at industrial automation process control field middle sleeve formula modulating valve relatively more extensive, have more accurate than other forms of governor valve control, the advantages such as noise is low.

Existing sleeve-type regulating valve valve plug, throttling cover upper-lower seal face are all-in-one-piece, require that machining accuracy is high, but due to level of processing restriction, there is valve leakage automatic inspection large.There is machining error in the fabrication process, the relative position of valve plug, the processing of throttling cover upper-lower seal face is difficult to control.Current employing to the method for grinding, also difficultly also ensure that upper-lower seal face has good sealing effect simultaneously.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of sleeve-type regulating valve combination valve plug, reduces the difficulty of valve plug, throttling cover upper-lower seal face relative position machining accuracy, makes upper-lower seal face play good sealing effect simultaneously simultaneously.

For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of sleeve-type regulating valve combination valve plug, described modulating valve comprises a throttling cover, there is the cavity holding medium circulation in throttling cover, described combination valve plug is arranged in the cavity of throttling cover, and realization can be driven to open and close by the valve rod stretched in throttling cover cavity, its innovative point is:

Comprise a valve plug body, this valve plug body is connected with valve rod, and can drive by valve rod the keying realizing valve;

The upper periphery end of described valve plug body is set with a upper sealing ring, and the upper end of upper sealing ring is compressed by ring-shaped end cap, described end cap is fixed by bolt and valve plug body, between upper sealing ring and end cap, be also provided with an endless metal spirotallic gasket, jointly form between the inwall of the cavity in the outer side wall of described upper sealing ring and throttling cover and go up sealing pair;

Jointly forms lower seal pair between the inwall of the cavity in the lower circumferential outer side wall of described valve plug body and throttling cover.

Further, the upper end of described valve plug body and the upper end of upper sealing ring all have an annular groove, have in the bottom of end cap simultaneously two respectively with the annular protrusion one to one of the annular groove on valve plug body, upper sealing ring.

The invention has the advantages that: in the present invention, the upper-lower seal face of valve plug adopts segmentation form, on valve plug, sealing has the function of micro-up-down adjustment position, reduce the difficulty of valve plug, throttling cover upper-lower seal face relative position machining accuracy, enhance productivity, make upper-lower seal face play good sealing effect simultaneously simultaneously, reduce telescopic valve leakage automatic inspection.

By annular protrusion and the setting of changing connected in star, the quick position that end cap can be made can to realize between upper sealing ring and valve plug body is installed, and ensures its stable connection.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of sleeve-type regulating valve of the present invention combination valve plug.

Embodiment

Schematic diagram is as shown in Figure 1 known, and sleeve-type regulating valve of the present invention comprises throttling cover 6, valve rod and combination valve plug.

In throttling cover 5, have the cavity holding medium circulation, the inner chamber that valve rod stretches to throttling cover 5 from top to bottom gathers, and combination valve plug is arranged in the cavity of throttling cover 5, and realization can be driven to open and close by the valve rod in the cavity stretched in throttling cover 5.

Combination valve plug comprises a valve plug body 6, and this valve plug body 6 is connected with valve rod, and can drive by valve rod the keying realizing valve.

The upper periphery end of valve plug body 6 is set with a upper sealing ring 4, and the upper end of upper sealing ring 4 is compressed by end cap 2, jointly forms between the inwall of the cavity in the outer side wall of upper sealing ring 4 and throttling cover 5 and go up sealing pair, between upper sealing ring 4 and end cap 2, be also provided with a spiral wound gasket 3.

End cap 2 shape ringwise, there is at the two ends of end cap 2 tapped through hole holding bolt 1 and pass, simultaneously in the upper end of valve plug body 6, there is corresponding tapped blind hole, by a bolt 1 successively through carrying out tightening thus realize fixing end cap 2 and valve plug body 6 after tapped through hole, tapped blind hole.

In the upper end of the upper end of valve plug body 6 and upper sealing ring 4, all there is an annular groove, have in the bottom of end cap 2 simultaneously two respectively with the annular protrusion one to one of the annular groove on valve plug body, upper sealing ring, an annular metal spirotallic gasket 3 is also provided with between upper sealing ring 4 and end cap 2, spiral wound gasket 3 one has two, lays respectively in two annular grooves.

Jointly forms lower seal pair between the inwall of the cavity in the lower circumferential outer side wall of valve plug body 6 and throttling cover 5.

Working principle: when valve closing, upper sealing pair first contacts, and under valve rod continues to exert pressure, because spiral wound gasket 3 has compressibility, and valve plug body 6 can continue to move down and makes the contact of lower seal pair.Valve plug adopts combining form, and adding a place can leakage point, because this structure adopts spiral wound gasket 3 to play the effect of sealing in upper sealing ring 4, valve plug body 6 with end cap 2 place, solves the possibility that leakage appears in this place.

The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (2)

1. a sleeve-type regulating valve combination valve plug, described modulating valve comprises a throttling cover, and in throttling cover, have the cavity holding medium circulation, described combination valve plug is arranged in the cavity of throttling cover, and realization can be driven to open and close by the valve rod stretched in throttling cover cavity, it is characterized in that:
Comprise a valve plug body, this valve plug body is connected with valve rod, and can drive by valve rod the keying realizing valve;
The upper periphery end of described valve plug body is set with a upper sealing ring, and the upper end of upper sealing ring is compressed by ring-shaped end cap, described end cap is fixed by bolt and valve plug body, between upper sealing ring and end cap, be also provided with an endless metal spirotallic gasket, jointly form between the inwall of the cavity in the outer side wall of described upper sealing ring and throttling cover and go up sealing pair;
Jointly forms lower seal pair between the inwall of the cavity in the lower circumferential outer side wall of described valve plug body and throttling cover.
2. sleeve-type regulating valve combination valve plug according to claim 1, it is characterized in that: the upper end of described valve plug body and the upper end of upper sealing ring all have an annular groove, have in the bottom of end cap simultaneously two respectively with the annular protrusion one to one of the annular groove on valve plug body, upper sealing ring.
CN201510497210.0A 2015-08-14 2015-08-14 Sleeve type regulating valve combination valve plug CN105299238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510497210.0A CN105299238A (en) 2015-08-14 2015-08-14 Sleeve type regulating valve combination valve plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510497210.0A CN105299238A (en) 2015-08-14 2015-08-14 Sleeve type regulating valve combination valve plug

Publications (1)

Publication Number Publication Date
CN105299238A true CN105299238A (en) 2016-02-03

Family

ID=55196845

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510497210.0A CN105299238A (en) 2015-08-14 2015-08-14 Sleeve type regulating valve combination valve plug

Country Status (1)

Country Link
CN (1) CN105299238A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201723729U (en) * 2010-07-06 2011-01-26 苏州纽威阀门股份有限公司 Single seat sleeve regulating valve
CN202109090U (en) * 2011-05-19 2012-01-11 浙江科海仪表有限公司 Large-caliber low-noise sleeve barrel regulation valve
WO2012012951A1 (en) * 2010-07-30 2012-02-02 Fisher Controls International Llc Valve seat apparatus for use with fluid valves
CN102563104A (en) * 2012-02-04 2012-07-11 浙江科海仪表有限公司 Self-operated sleeve regulating valve
CN202431993U (en) * 2012-02-04 2012-09-12 浙江科海仪表有限公司 Self-operated sleeve adjusting valve
CN203948668U (en) * 2014-06-12 2014-11-19 山东裕鸿阀门股份有限公司 Cage equilibrium valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201723729U (en) * 2010-07-06 2011-01-26 苏州纽威阀门股份有限公司 Single seat sleeve regulating valve
WO2012012951A1 (en) * 2010-07-30 2012-02-02 Fisher Controls International Llc Valve seat apparatus for use with fluid valves
CN202109090U (en) * 2011-05-19 2012-01-11 浙江科海仪表有限公司 Large-caliber low-noise sleeve barrel regulation valve
CN102563104A (en) * 2012-02-04 2012-07-11 浙江科海仪表有限公司 Self-operated sleeve regulating valve
CN202431993U (en) * 2012-02-04 2012-09-12 浙江科海仪表有限公司 Self-operated sleeve adjusting valve
CN203948668U (en) * 2014-06-12 2014-11-19 山东裕鸿阀门股份有限公司 Cage equilibrium valve

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Application publication date: 20160203