CN110067867A - A kind of fire valve with decompression, voltage stabilizing function - Google Patents
A kind of fire valve with decompression, voltage stabilizing function Download PDFInfo
- Publication number
- CN110067867A CN110067867A CN201910306666.2A CN201910306666A CN110067867A CN 110067867 A CN110067867 A CN 110067867A CN 201910306666 A CN201910306666 A CN 201910306666A CN 110067867 A CN110067867 A CN 110067867A
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- CN
- China
- Prior art keywords
- valve
- deck
- decompression
- piston
- fire
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/54—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses it is a kind of with decompression, voltage stabilizing function fire valve, the lower part of valve deck is protruded into the inner cavity of valve body, the lower part of valve rod passes through valve deck and protrudes into the inner cavity of valve body, piston is arranged on valve rod, adjustment spring is arranged on valve rod between piston and valve deck, adjustment spring is in compressive state, offers multiple vents on the piston side wall of bottom；Valve disc is provided on sealing surface at valve body inlet.It is of the present invention decompression, pressure stabilizing fire valve relative to existing fire valve, have decompression, voltage stabilizing function.The present invention takes full advantage of the space of body cavity, and decompression and voltage regulation part are both placed in valve body, the volume and weight of valve is reduced, and meets modern product miniaturization, light-weighted design requirement, has effectively saved economic cost.
Description
Technical field
The present invention relates to fire valve technical fields, specially a kind of the outlet hydraulic pressure of fire valve to be reduced to specified value and tieed up
Hold the stable fire valve of pressure.
Background technique
As shown in Figure 1, the structure of fire valve in the prior art is similar to shut-off valve, only at upper one, valve export set
For the rotary hose and fire-fighting lance of fire-fighting, medium just circulates after valve opening, this results in valve export hydraulic pressure almost etc.
In import hydraulic pressure, when import hydraulic pressure is larger, outlet hydraulic pressure is also very big, one is difficult to hold, and can make execute-in-place not side
Just.Therefore, existing fire valve itself does not have the function of decompression because of reasons in structure, more can not stabilization of export pressure.
Summary of the invention
The object of the present invention is to provide one kind to depressurize, the fire valve of pressure stabilizing.
The invention is realized by the following technical scheme:
The interior of valve body is protruded into a kind of fire valve with decompression, voltage stabilizing function, including valve body, valve deck and valve rod, the lower part of valve deck
In chamber, the lower part of valve rod passes through valve deck and protrudes into the inner cavity of valve body, and piston, the valve rod between piston and valve deck are arranged on valve rod
On be arranged with adjustment spring, adjustment spring is in compressive state, close to bottom piston side wall on offer multiple vents；Valve
Valve disc is provided on the sealing surface of body inlet.
Further, the vent opened up on piston is elliptical aperture, and the long axis of elliptical aperture is parallel with valve rod, valve deck bottom
Inner sidewall is step type, forms valve deck skirt section, when piston moves up and down in valve deck, the top of the oval vent on piston
It is blocked by valve deck skirt section.
Decompression, voltage stabilizing function realize pressure-reduced and-regulated using valve core structure in the form of piston, and decompression hole area is uniformly split
Surrounding in piston skirt, in the course of work when piston up-down, valve deck skirt section can shield portions vent adjusted with playing
The effect of outlet pressure；The spring of upper piston area plays balance inlet pressure, and in inlet pressure variation, spring force be will limit
Piston up-down amplitude realizes the function of pressure-reduced and-regulated to reduce the amplitude of outlet pressure pulsations.
Decompression is generally realized by changing circulation area；Pressure stabilizing then needs to adjust circulating face by changing inlet pressure
Product；Therefore valve core structure in the form of piston is more satisfactory pressure-reduced and-regulated way of realization.The flow area of valve is uniformly split
On the vent in the skirt section of piston valve core, in the course of work when piston up-down, valve deck skirt section can shield portions decompression
Play a part of to adjust outlet pressure in hole；The spring of upper piston area plays balance inlet pressure, in inlet pressure variation, spring
Power will limit piston up-down amplitude, to reduce the amplitude of outlet pressure pulsations, realize the function of pressure-reduced and-regulated.
Preferably, the valve deck stretched out outside valve body is fixed on valve body by valve deck adjusting nut.
It is further preferred that being arranged with pressing plate on the valve deck being located above valve deck adjusting nut, and by twisting on valve rod
If pressing plate is fixed on valve deck by adjusting nut.
By twisting adjusting nut come pressing plate, so that adjustment spring be made to compress or loosen, carry out adjustment spring power.
Pressure regulating mechanism of the present invention is divided into two parts: initial tension of spring regulating mechanism and decompression hole area regulating mechanism.Bullet
Spring pretightening force controlling mechanism is made of adjustment spring, valve rod, pressing plate, adjusting nut etc.；The adjustable spring of rotating adjusting nut
Initial position reach the adjustment effect to initial tension of spring；Hole area regulating mechanism is depressurized by valve deck, valve deck adjusting nut etc.
Composition: the relative position of rotary valve cover adjusting nut adjustable valve deck and piston is lived to depressurize to adjust valve deck skirt section shield
The area in hole, that is, have adjusted the area of vent.
It is preferably located at fixing sleeve on the valve rod above adjusting nut and is equipped with handwheel.
Handwheel is rotated, when moving downward valve rod, valve rod pushes the sealing surface of valve disc and valve body to be in close contact, and realizes valve
Closing；Handwheel is rotated, when moving upwards valve rod, valve rod and valve disc are detached from, and valve disc is detached from valve under the action of pressure medium
Body sealing surface, valve are opened.
The beneficial effects of the present invention are:
It is of the present invention decompression, pressure stabilizing fire valve relative to existing fire valve, have decompression, voltage stabilizing function.
Fire-fighting valve arrangement of the present invention takes full advantage of the space of body cavity, and decompression and voltage regulation part are both placed in
In valve body, the volume and weight of valve is reduced, meets modern product miniaturization, light-weighted design requirement, effectively saves
Economic cost.
Detailed description of the invention
Fig. 1 shows the structure of fire valve in the prior art；
Fig. 2 shows the overall structure of fire valve of the present invention；
Fig. 3 shows the overall structure of twin decompression, pressure stabilizing fire valve；
Fig. 4 shows the structure of vent on piston；
Fig. 5 shows the structure in valve deck skirt section.
Specific embodiment
As shown in Fig. 2, a kind of fire valve with decompression, voltage stabilizing function of the present invention, including valve body 1, valve deck 5 and valve
The lower part of bar 9, valve deck is protruded into the inner cavity of valve body, and the lower part of valve rod passes through valve deck and protrudes into the inner cavity of valve body, is arranged on valve rod
There is piston 3, adjustment spring 4 is arranged on the valve rod between piston and valve deck, adjustment spring is in compressive state, close to bottom
Multiple vents are offered on piston side wall；Valve disc 2 is provided on sealing surface at valve body inlet.The valve deck stretched out outside valve body is logical
Cross valve deck adjusting nut 6 to be fixed on valve body, be arranged with pressing plate 7 on the valve deck above valve deck adjusting nut 6, and by
It is twisted on valve rod and sets adjusting nut 8, pressing plate is fixed on valve deck, fixing sleeve is equipped with handwheel on the valve rod above adjusting nut
10。
Such as Fig. 4, in the present embodiment, the vent opened up on piston is elliptical aperture, and the long axis of elliptical aperture is parallel with valve rod, from
The medium that valve body inlet enters body cavity is entered at valve outlet by the vent.
Such as Fig. 5, in the present embodiment, the inner sidewall of valve deck bottom is step type, forms skirt section, and arrow pointed location is in figure
For the skirt section of valve deck.
When piston moves up and down in valve deck, the top of the oval vent on piston is blocked by valve deck skirt section, and with
Piston move up displacement distance it is more, the part blocked just will increase, and such flow of media area will be reduced.
It is of the present invention decompression, pressure stabilizing fire valve working principle:
Handwheel 10 is rotated clockwise, valve rod 9 moves downward, and valve rod 9 contacts with valve disc 2 and continues downwards, to transport valve disc 2 also downwards
It is dynamic, it is in close contact the sealing surface of valve disc and valve body, so that medium be prevented to pass through, realizes the closing of valve.
Conversely, rotating counterclockwise handwheel, valve rod is moved upwards, and valve rod and valve disc are detached from.Effect of the valve disc in pressure medium
Lower disengaging valve body sealing surface, medium enter body cavity and by the vent flow direction outlets on piston, and valve is opened.
Using novel manual mechanism for opening/closing, the form separated using valve rod with valve disc can be reduced fire valve of the present invention
Interference of the manual opening-closing to pressure adjusting function.
When pressure rises at valve body import, the pressure into body cavity can rise, while act on piston lower portion
Pressure increases, and so that piston is continued compressed spring and moves upwards, and vent top just will increase by the part of valve deck skirt section shield, this
Sample flow of media area is reduced, so that valve outlet pressure be made to decline；Conversely, when inlet pressure decline when, outlet pressure can under
Drop, because inlet pressure is not enough to overcome the restoring force of spring, piston moves downward under the action of spring restoring force, vent quilt
The part of valve deck skirt section shield will be reduced, so that flow of media area increases, increase outlet pressure, to play and stablize
The effect of mouth pressure.
When inlet pressure changes within the scope of 0.8-1.0MPa, after the present invention, outlet pressure can be stablized 0.6
±10%。
In addition, can control the position upper and lower in valve body 1 of valve deck 5 using valve deck adjusting nut 6, it can be more above
Following point can also play the mostly and few of the area for covering piston vent, to control flow of media area.
After adjustment spring 4 is packed into piston, adjustment spring top is exactly pressing plate and adjusting nut, is pressed by twisting adjusting nut
Pressing plate carrys out adjustment spring power so that adjustment spring be made to compress or loosen.If dextrorotation adjusting nut just will increase the pressure of spring
Contracting amount, spring force just will increase, otherwise left-handed adjusting nut, spring relaxation, and spring force will reduce.
Such as Fig. 3, two decompressions of the present invention, pressure stabilizing fire valve can be combined, being formed has import, two
The twin decompression of a outlet, pressure stabilizing fire valve, can be used for connecting the occasion of two fire-fighting lance operations simultaneously.
Claims (5)
1. a kind of fire valve with decompression, voltage stabilizing function, including valve body, valve deck and valve rod, which is characterized in that the lower part of valve deck
It protrudes into the inner cavity of valve body, the lower part of valve rod passes through valve deck and protrudes into the inner cavity of valve body, and piston, piston and valve are arranged on valve rod
Adjustment spring is arranged on valve rod between lid, adjustment spring is in compressive state, offers on the piston side wall of bottom
Multiple vents；Valve disc is provided on sealing surface at valve body inlet.
2. a kind of fire valve with decompression, voltage stabilizing function according to claim 1, which is characterized in that stretch out outside valve body
Valve deck be fixed on valve body by valve deck adjusting nut.
3. a kind of fire valve with decompression, voltage stabilizing function according to claim 2, which is characterized in that be located at valve deck tune
It is arranged with pressing plate on valve deck above section nut, and sets adjusting nut by twisting on valve rod, pressing plate is fixed on valve deck.
4. a kind of fire valve with decompression, voltage stabilizing function according to claim 3, which is characterized in that be located at and adjust spiral shell
Fixing sleeve is equipped with handwheel on the valve rod of female top.
5. a kind of fire valve with decompression, voltage stabilizing function according to claim 1, which is characterized in that opened up on piston
Vent be elliptical aperture, the long axis of elliptical aperture is parallel with valve rod, and the inner sidewall of valve deck bottom is step type, formation valve deck skirt
Portion, when piston moves up and down in valve deck, the top of the oval vent on piston is blocked by valve deck skirt section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306666.2A CN110067867A (en) | 2019-04-17 | 2019-04-17 | A kind of fire valve with decompression, voltage stabilizing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910306666.2A CN110067867A (en) | 2019-04-17 | 2019-04-17 | A kind of fire valve with decompression, voltage stabilizing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110067867A true CN110067867A (en) | 2019-07-30 |
Family
ID=67367868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910306666.2A Pending CN110067867A (en) | 2019-04-17 | 2019-04-17 | A kind of fire valve with decompression, voltage stabilizing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110067867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671525A (en) * | 2019-09-25 | 2020-01-10 | 姚炳龙 | Pressure reducing and stabilizing valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457419Y (en) * | 2000-12-22 | 2001-10-31 | 马瑞田 | Pipeline pressure stabilizer |
| CN2546709Y (en) * | 2002-02-28 | 2003-04-23 | 管彦信 | Decompression, stable pressure indoor fire hydrant |
| CN201110416Y (en) * | 2007-10-31 | 2008-09-03 | 温州帝威斯感应洁具有限公司 | Touch type block-resistant descaling time-delay self-closing water-saving device |
| JP2011158052A (en) * | 2010-02-02 | 2011-08-18 | Keihin Corp | Pressure reducing valve and seat surface forming method for valve element |
| CN202161731U (en) * | 2011-07-16 | 2012-03-14 | 江西荣和特种消防设备制造有限公司 | Pressure regulating fire hydrant |
| CN205298717U (en) * | 2016-01-19 | 2016-06-08 | 中国轻工业武汉设计工程有限责任公司 | Automatic adjust pressure orifice plate that reduces pressure |
-
2019
- 2019-04-17 CN CN201910306666.2A patent/CN110067867A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457419Y (en) * | 2000-12-22 | 2001-10-31 | 马瑞田 | Pipeline pressure stabilizer |
| CN2546709Y (en) * | 2002-02-28 | 2003-04-23 | 管彦信 | Decompression, stable pressure indoor fire hydrant |
| CN201110416Y (en) * | 2007-10-31 | 2008-09-03 | 温州帝威斯感应洁具有限公司 | Touch type block-resistant descaling time-delay self-closing water-saving device |
| JP2011158052A (en) * | 2010-02-02 | 2011-08-18 | Keihin Corp | Pressure reducing valve and seat surface forming method for valve element |
| CN202161731U (en) * | 2011-07-16 | 2012-03-14 | 江西荣和特种消防设备制造有限公司 | Pressure regulating fire hydrant |
| CN205298717U (en) * | 2016-01-19 | 2016-06-08 | 中国轻工业武汉设计工程有限责任公司 | Automatic adjust pressure orifice plate that reduces pressure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671525A (en) * | 2019-09-25 | 2020-01-10 | 姚炳龙 | Pressure reducing and stabilizing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190730 |
|
| RJ01 | Rejection of invention patent application after publication |