CN202790885U - Regulating valve - Google Patents

Regulating valve Download PDF

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Publication number
CN202790885U
CN202790885U CN 201220257621 CN201220257621U CN202790885U CN 202790885 U CN202790885 U CN 202790885U CN 201220257621 CN201220257621 CN 201220257621 CN 201220257621 U CN201220257621 U CN 201220257621U CN 202790885 U CN202790885 U CN 202790885U
Authority
CN
China
Prior art keywords
valve
seat
shunt assembly
valve rod
hole
Prior art date
Application number
CN 201220257621
Other languages
Chinese (zh)
Inventor
郭仕明
Original Assignee
重庆海王仪器仪表有限公司
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 重庆海王仪器仪表有限公司 filed Critical 重庆海王仪器仪表有限公司
Priority to CN 201220257621 priority Critical patent/CN202790885U/en
Application granted granted Critical
Publication of CN202790885U publication Critical patent/CN202790885U/en

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Abstract

The utility model provides a regulating valve comprising a valve body, a valve seat, a valve cover and a valve rod used for controlling opening and closing of the valve body. The valve cover is fixedly arranged on the valve body. The valve rod penetrates through the valve cover and can move up and down in the valve cover. The regulating valve is characterized in that a diversion component is arranged at the upper end of the valve seat, and the valve rod penetrates through the diversion component and controls the opening and closing of the valve body through the diversion component. The regulating valve has the advantages that the diversion component is additionally arranged inside the valve body, the goal of reducing fluid pressure and flow speed in high pressure fluid is achieved, a step-by-step decompression theory is achieved, and phenomena of cavitation and flashing of the fluid are avoided.

Description

Modulating valve
Technical field
The utility model belongs to a kind of valve body, relates to concretely a kind of modulating valve that carries out well-tuned in the situation of High Pressure Difference.
Background technique
In commercial Application, can use various modulating valve, and straight-through single seat has with balance cage sleeve valve the degree of regulation height is in use arranged, the characteristics that regulation range is wide, particularly tiny flow quantity is regulated, straight-through single-seat valve also can finely show its modulability, but because the narrow limitation of structure all can only be in the low occasion use of pressure reduction.Use in the High Pressure Difference situation, no matter use what material, two types valve is all extremely short working life.
Therefore, for above problem, be necessary to carry out the modulating valve in the situation of the use of High Pressure Difference is improved.
The model utility content
The purpose of this utility model just provides a kind of modulating valve, solves the problem that is difficult in the existing commercial Application for the modulating valve of the environment of High Pressure Difference.
Modulating valve of the present utility model, comprise valve body, the valve rod of valve seat, valve gap and control valve body switch, described valve gap is fixedly installed on the valve body, described valve rod passes valve gap and can move up and down in valve gap, it is characterized in that: the upper end at described valve seat is provided with shunt assembly, and valve rod passes separation assembly and carries out flow control with shunt assembly.By shunt assembly is set, can allow fluid that high pressure enters by shunt assembly the time, increase flow resistance, consumed energy reduces rate of flow of fluid, has realized the step pressure reducing principle.
Further, described shunt assembly is cylinder type, and offering valve rod in the centre has through hole, offers the main flow hole of leading to low side at peripheral vertical direction, and staggering from the bottom up at stem through-hole is horizontally arranged with the rill metering-orifice that leads to the main flow hole.By the layer by layer passage that shunt assembly arranges, the high-pressure liquid that enters can be reduced step by step pressure and reduce flow velocity, reduce impact force and avoid cavitations and flashing.
Further, be provided with briquetting between shunt assembly and valve gap, described valve rod passes briquetting, and described briquetting is provided with the bulge loop platform near valve rod, and described bulge loop platform is against shunt assembly.Shunt assembly is fixed and support valve closure.
Further, described valve seat has auxiliary-seat and main valve seat, and described auxiliary-seat is arranged on the wall that the import and export of valve body are separated by, and is fixedly installed main valve seat in the auxiliary-seat upper end, and the through hole that arranges on the spool of valve rod and the valve seat matches and opens and closes.The advantage of this invention is convenient to install shunt assembly etc.
Further, the spool of described valve seat and valve rod adopts the resistance to erosion material to make.This goal of the invention improves its resistance to erosion ability exactly, and can regulate frequently use, and closing property is good.
Beneficial effect
The beneficial effects of the utility model are by to increasing in the valve body shunt assembly being set, and have reached reduction hydrodynamic pressure in high-pressure liquid and the purpose of flow velocity, have realized the step pressure reducing principle, avoid fluid cavitation erosion and cavitation, steam flashing to occur.
Description of drawings
Accompanying drawing is structural representation of the present utility model,
Embodiment
A kind of High Pressure Difference tiny flow quantity control valve of the present utility model as shown in the figure, comprise valve body 1, the valve rod 14 of valve seat, valve gap 9 and control valve body switch, described valve gap 9 is fixedly installed on the valve body 1, described valve rod 14 passes valve gap 9 and can move up and down in valve gap, it is characterized in that: be provided with shunt assembly 4 in the upper end of described valve seat, valve rod passes separation assembly 4 and carries out flow control with shunt assembly.Described shunt assembly is cylinder type, offers the through hole of valve rod in the centre, offers the main flow hole of leading to low side at peripheral vertical direction, stem through-hole from the bottom up lateral alternate the rill metering-orifice that leads to the main flow hole is arranged.Be provided with briquetting 5 between shunt assembly 4 and valve gap 9, described valve rod 14 passes briquetting 5, and described briquetting is provided with the bulge loop platform near valve rod, and described bulge loop platform is against shunt assembly.Described valve seat has 2 on secondary valve and main valve seat 3, on the wall that the import and export that described auxiliary-seat 2 is arranged on valve body 1 are separated by, is fixedly installed main valve seat 3 in the auxiliary-seat upper end, and the through hole that arranges on the spool of valve rod and the valve seat matches and opens and closes.
In the present embodiment, the spool of described valve seat and valve rod adopts the resistance to erosion material to make.
It is low in and high out that High Pressure Difference tiny flow quantity control valve of the present utility model adopts fluid, gets off to close, opens and regulates by on the valve rod.Valve base surface and valve rod head adopt special resistance to erosion material, can regulate frequently use, and closing property is good.The stem diameter design is less, requires the final controlling element ouput force little.The inner grooved bore that adopts shunt assembly realizes the Flow-rate adjustment of fluid, and the shunt assembly structure can effectively increase flow resistance, and consumed energy reduces rate of flow of fluid, has realized the step pressure reducing principle, avoids fluid cavitation erosion and cavitation, steam flashing to occur.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims (5)

1. modulating valve, comprise valve body, the valve rod of valve seat, valve gap and control valve body switch, described valve gap is fixedly installed on the valve body, described valve rod passes valve gap and can move up and down in valve gap, it is characterized in that: the upper end at described valve seat is provided with shunt assembly, and valve rod passes separation assembly and carries out flow control with shunt assembly.
2. modulating valve according to claim 1, it is characterized in that: described shunt assembly is cylinder type, offering valve rod in the centre has through hole, offers the main flow hole of leading to low side at peripheral vertical direction, and staggering from the bottom up at stem through-hole is horizontally arranged with the rill metering-orifice that leads to the main flow hole.
3. modulating valve according to claim 2, it is characterized in that: be provided with briquetting between shunt assembly and valve gap, described valve rod passes briquetting, and described briquetting is provided with the bulge loop platform near valve rod, and described bulge loop platform is against shunt assembly.
4. modulating valve according to claim 3, it is characterized in that: described valve seat has auxiliary-seat and main valve seat, described auxiliary-seat is arranged on the wall that the import and export of valve body are separated by, be fixedly installed main valve seat in auxiliary-seat upper end, the through hole that arranges on the spool of valve rod and the valve seat matches and opens and closes.
5. modulating valve according to claim 4 is characterized in that: the spool of described valve seat and valve rod adopts the resistance to erosion material to make.
CN 201220257621 2012-05-27 2012-05-27 Regulating valve CN202790885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220257621 CN202790885U (en) 2012-05-27 2012-05-27 Regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220257621 CN202790885U (en) 2012-05-27 2012-05-27 Regulating valve

Publications (1)

Publication Number Publication Date
CN202790885U true CN202790885U (en) 2013-03-13

Family

ID=47818148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220257621 CN202790885U (en) 2012-05-27 2012-05-27 Regulating valve

Country Status (1)

Country Link
CN (1) CN202790885U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104179987A (en) * 2014-07-27 2014-12-03 成都国光电子仪表有限责任公司 Natural gas flow regulating valve with multiple gas inlet positions
CN104265908A (en) * 2014-07-27 2015-01-07 成都国光电子仪表有限责任公司 Natural gas flow adjusting structure
CN105916539A (en) * 2013-11-20 2016-08-31 特兰苏尼特 An expiratory valve for controlling a flow
CN107725807A (en) * 2017-11-16 2018-02-23 杭州华惠阀门有限公司 A kind of septum valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105916539A (en) * 2013-11-20 2016-08-31 特兰苏尼特 An expiratory valve for controlling a flow
CN105916539B (en) * 2013-11-20 2018-07-24 弗路德自动控制系统有限公司 Valve for controlling stream
CN104179987A (en) * 2014-07-27 2014-12-03 成都国光电子仪表有限责任公司 Natural gas flow regulating valve with multiple gas inlet positions
CN104265908A (en) * 2014-07-27 2015-01-07 成都国光电子仪表有限责任公司 Natural gas flow adjusting structure
CN107725807A (en) * 2017-11-16 2018-02-23 杭州华惠阀门有限公司 A kind of septum valve

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130313

Termination date: 20190527