CN209325061U - Venturi type balanced valve - Google Patents
Venturi type balanced valve Download PDFInfo
- Publication number
- CN209325061U CN209325061U CN201821671346.4U CN201821671346U CN209325061U CN 209325061 U CN209325061 U CN 209325061U CN 201821671346 U CN201821671346 U CN 201821671346U CN 209325061 U CN209325061 U CN 209325061U
- Authority
- CN
- China
- Prior art keywords
- valve
- undergauge section
- spool
- inner sleeve
- venturi type
- 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.)
- Active
Links
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model relates to a kind of venturi type balanced valves, the valve seal pair being made of valve seat and spool is equipped in the intracorporal medium runner of its valve, it is equipped in the outlet-side media runner of the valve seal pair and surveys pressure area, the medium runner for surveying pressure area is straight channel, including undergauge section and non-undergauge section, undergauge section and non-undergauge section are respectively equipped with pressure detecting point, the central axis of the medium runner of the valve seal pair and valve body main shaft direction are in 45 degree to 60 degree angles, and roll tiltedly to valve inlet.Since its pressure detecting point is located at valve export side, valve motion part rolls tiltedly to valve inlet, thus keep the utility model compact-sized, it is easy to install and use, and and change valve flow differential pressure curve because of the variation of valve opening；Valve rod screw rod is screwed after valve is adjusted since its stem internal is provided with valve rod screw rod, can play prevents from opening by mistake big effect.
Description
Technical field
The utility model relates to a kind of balanced valve, in particular to a kind of venturi type balanced valve of adjustable flow.
Background technique
Balanced valve is the valve that balance adjustment is played under hydraulic regime, including static balancing valve and dynamic balance valve etc. are more
Kind form, wherein static balancing valve is also known as balanced valve, manual balanced valve, dibit regulating valve etc., it is by changing spool and valve
The gap (aperture) of seat, to change the flow resistance for flowing through valve to achieve the purpose that adjust flow, effect is to pass through change
Each valve opening distributes new flow according to design-calculated proportional balancing method, and each branch increases and decreases in proportion simultaneously, to play stream
Measure the effect of balance.Balanced valve is set in heat supply and pipes system, each distributing point is predetermined in adjustable system
Flow makes the total flow of heating system obtain an equitable breakdown, to have efficiently solved the assignment problem of each branch flow.
But existing balanced valve largely needs that pressure detecting point is respectively set before and after valve, first is that keeping valve aobvious
Structure is complicated, and the installation space needed is bigger；Second is that making the curve of flow pressure drop of valve can be because of the variation of valve opening
And change.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of venturi type balanced valve, pressure detecting point is set
In the outlet side of valve body, it is whole to the inclination of the inlet side of valve body to manually adjust part, thus keep the utility model compact-sized, institute
The installation space needed is smaller than common balanced valve, on the other hand makes the curve of flow pressure drop of valve not because of the change of valve opening
Change and change, it is easier to measure accurate data on flows.
The technical solution of the utility model is:
A kind of venturi type balanced valve, including valve body, the intracorporal medium runner of valve is interior to be equipped with by valve seat and spool group
At valve seal pair, the inlet side medium runner and/or outlet-side media runner of the valve seal pair, which are equipped with, surveys pressure area, institute
Stating and surveying the medium runner of pressure area is straight channel, including undergauge section and non-undergauge section, the undergauge section are used for equipped at least one
At least one detection hole for pressure detecting is arranged in the non-undergauge section for the detection hole of pressure detecting.
Preferably, the outlet side surveyed pressure area and be located at the valve seal pair, the non-undergauge section are located at the undergauge
The rear of section.
It is described to survey the pore that pressure area includes isometrical straight tube pore and the short tube being set in the isometrical straight tube pore
It constitutes, the hole wall of the outer rim of the short tube and the straight tube pore seals, and the pore of the short tube constitutes the contracting for surveying pressure area
Diameter section, the straight tube pore for not setting short tube constitute the non-undergauge section for surveying pressure area, the pipe of the undergauge section and non-undergauge section
Respective pressure measuring unit is separately installed on wall, the survey pressure probe of each pressure measuring unit is respectively protruding into the undergauge section and non-contracting
Diameter section.
The pressure device can include: detection pole cap, detection bar using the detection bar for pressure detecting, the detection bar
Rubber sheet gasket, detection bar body, detection bar nameplate, detection bar rubber core and detection bar core, the detection bar core of the detection bar
It is respectively protruding on the medium channel of corresponding undergauge section and non-undergauge section.
Medium runner for the valve seal pair to be arranged is obliquely installed, and both ends are respectively communicated with the valve seal pair
Inlet side medium runner and outlet-side media runner, the valve base sealing is mounted on the valve body or adds with valve body integral type
Work.
Valve core head and spool gasket be installed on the spool, the medial surface of the valve seat and upper surface respectively with the valve
Sealing pair is formed between core print and spool gasket or crosses runner.
Preferably, the central axis of the medium runner of the valve seal pair is arrived with valve body main shaft direction in 45 degree
60 degree of angles, and rolled tiltedly to valve inlet.
The spool connects the handwheel for driving it to move axially by spool transmission mechanism, and the top of the handwheel is set
There is the arrow of rotation indicating graduation and instruction switch direction, the centre on the top of the handwheel is equipped with handwheel gland, the spool
Transmission mechanism is by the transmission mechanism of the translation for being converted to spool of handwheel, the connection type of the handwheel and the valve body
It is preferred that the flexible connection of only one rotary freedom, the position of handwheel is constant when rotation hand wheel as a result, and spool is in valve inner
It is mobile with controlling opening of valve and open and-shut mode, sealing ring can be set according to the prior art, sealing is contained etc. realize needed for it is close
Envelope.
Oblique upper is equipped on the valve body on the axis direction of the inlet side of the valve seat to be open, the oblique upper opening
It has been connected through a screw thread inner sleeve, sealing ring is equipped between the thread root of the inner sleeve and oblique upper opening, it is described
The outside of inner sleeve is equipped with end edge, and the outer diameter that outer diameter and the oblique upper on the end edge are open is essentially identical, and is pressed in described
In the opening of oblique upper, the lower half portion of the spool is solid, and top half is hollow cylindrical, hollow cylindrical part
It is connected by screw thread and valve rod rotation, the middle part of the spool and the inner sleeve are glade plane space cooperation, the spool
Middle part be equipped with groove, sealing ring is equipped in the groove, the middle inside of the inner sleeve is equipped with retention bead, the spool
Its axis direction of the outer lateral edge of hollow cylindrical part be equipped with limiting groove, the retention bead and the limiting groove match
It closes, the inside upper part of the inner sleeve is equipped with limited step, and the middle part of the valve rod is equipped with and the limiting stand on the inner sleeve
The retention bead that rank matches is equipped with valve rod retainer ring at the top of the inner sleeve on the valve rod.
Further, the valve rod is cylindrical shape, and columnar inside is equipped with valve rod screw rod, the valve rod screw rod and institute
It states valve rod to connect by screw thread rotation, for the screw-socket of the valve rod screw rod using special-shaped screw-socket, the valve rod top passes through spiral shell
Mother is fixed with handwheel.
Middle sleeve is equipped on the outside of the inner sleeve, the middle sleeve is threadably secured with the lower part of the handwheel and connect,
The outside of the lower part of the middle sleeve and handwheel is equipped with outer sleeve, and the outer sleeve is set in the inner sleeve by interference fit
End edge upside outside.
Preferably, the top of the handwheel is equipped with the arrow of rotation indicating graduation and instruction switch direction, the handwheel
The centre on top is equipped with handwheel gland.
The utility model has the following beneficial effects: due to being equipped with valve core head and spool gasket on spool, respectively with valve seat
Medial surface and upper surface form sealing pair or cross runner, it is possible thereby to have simultaneously in the case where realizing that flow is adjusted and balanced
There is switching effect, it is not necessary that independent Shuttoff Valve is separately arranged, plays the dual-purpose effect of a valve, be conducive to save system
System cost, maintains easily and uses；Since its pressure detecting point is located at the outlet side of valve body, it is whole to valve body to manually adjust part
Inlet side inclination, to keep the utility model compact-sized, required installation space is smaller than common balanced valve, facilitates peace
Dress and use, due to surveying the shape invariance of pressure area, the curve of flow pressure drop of acquisition does not change because of the variation of the aperture of valve,
It is easier to measure accurate data on flows；It can be screwed after valve is adjusted since its stem internal is provided with valve rod screw rod
Valve rod screw rod prevents from opening by mistake big effect so as to play.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the appearance diagram of the utility model.
Marked in the figure: 1, valve body；2, short tube；3, valve core head；4, spool gasket 5, spool；6, valve rod；7, inner sleeve； 8,
Large sealing packing ring；9, small sealing ring；10, outer sleeve；11, middle sleeve；12, valve rod retainer ring；13, valve rod screw rod；14, handwheel gland；
15, nut；16, handwheel；17, pole cap is detected；18, detection bar rubber sheet gasket；19, bar body is detected；20, detection bar nameplate；
21, detection bar rubber core；22, detection bar core.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the utility model includes valve body 1, be equipped in the intracorporal medium runner of valve by valve seat and
The valve seal pair that spool 5 forms, the inlet side medium runner and/or outlet-side media runner of the valve seal pair, which are equipped with, to be surveyed
Pressure area, the medium runner for surveying pressure area are straight channel, including undergauge section and non-undergauge section, and the undergauge section is equipped at least one
At least one detection hole for pressure detecting is arranged in the non-undergauge section for a detection hole for pressure detecting.
Preferably, the outlet side surveyed pressure area and be located at the valve seal pair, the non-undergauge section are located at the undergauge
The rear of section, because outlet lateral pressure is relatively low, fluid flow state is relatively steady, is conducive to the accurate of measurement.
It is described to survey the pore that pressure area includes isometrical straight tube pore and the short tube 2 being set in the isometrical straight tube pore
It constitutes, the hole wall of the outer rim of the short tube and the straight tube pore seals, and the pore of the short tube constitutes the contracting for surveying pressure area
Diameter section, the straight tube pore for not setting short tube constitute the non-undergauge section for surveying pressure area, the undergauge section and non-undergauge section difference
Equipped with detection bar, the detection bar includes: detection pole cap 17, detection bar rubber sheet gasket 18, detection bar body 19, detection bar mark
Board 20, detection bar rubber core 21 and detection bar core 22, the detection bar core of the detection bar are respectively protruding into the undergauge section and non-contracting
The inside of diameter section.By the detection bar of undergauge section and non-undergauge section can use special equipment measure pressure difference calculate flow, flow with
Differential pressure curve does not change because of the variation of handwheel aperture, aspect inquiry, debugging.Due to being provided in the isometrical straight tube pore
Short tube, so that forming the shape for being similar to Venturi tube in the straight tube pore, undergauge section therein corresponds to the larynx of Venturi tube
The non-undergauge section in portion, undergauge section two sides corresponds to decrement and the flaring region of Venturi tube.
Medium runner for the valve seal pair to be arranged is obliquely installed, and both ends are respectively communicated with the valve seal pair
Inlet side medium runner and outlet-side media runner, the valve base sealing is mounted on the valve body or adds with valve body integral type
Work, is equipped with valve core head 3 and spool gasket 4 on the spool, the medial surface of the valve seat and upper surface respectively with the spool
Sealing pair is formed between head and spool gasket or crosses runner, it is possible thereby in the case where realizing flow adjusting and balance, simultaneously
The dual-purpose effect of a valve is played it is not necessary that independent Shuttoff Valve is separately arranged with switching effect.
Preferably, the central axis of the medium runner of the valve seal pair and valve body main shaft direction are in 45 degree to 60
Angle is spent, and is rolled tiltedly to valve inlet, to facilitate the setting of detection bar, makes valve compact overall structure.
Oblique upper is equipped on the valve body on the axis direction of the inlet side of the valve seat to be open, the oblique upper opening
It has been connected through a screw thread inner sleeve 7, has been equipped with large sealing packing ring 8 between the thread root of the inner sleeve and oblique upper opening,
The outside of the inner sleeve is equipped with end edge, and the outer diameter that outer diameter and the oblique upper on the end edge are open is essentially identical, and is pressed in
In the oblique upper opening, the lower half portion of the spool is solid, and top half is hollow cylindrical, hollow cylindrical
Part is connected by screw thread and the valve rod 6 rotation, and the middle part of the spool and the inner sleeve are glade plane space cooperation, described
The middle part of spool is equipped with groove, and small sealing ring 9 is equipped in the groove, and the middle inside of the inner sleeve is equipped with retention bead,
Its axis direction of the outer lateral edge of the hollow cylindrical part of the spool is equipped with limiting groove, the retention bead and the limit
Groove matches, so that the spool can only move up and down along its axis direction, and cannot rotate；On the inside of the inner sleeve
Portion is equipped with limited step, and the middle part of the valve rod is equipped with the retention bead matched with the limited step on the inner sleeve, institute
It states and is equipped with valve rod retainer ring 12 at the top of the inner sleeve on valve rod, so that the valve rod can only be rotated, and cannot
It moves up and down along its axis.
Further, the valve rod be cylindrical shape, columnar inside be equipped with valve rod screw rod 13, the valve rod screw rod with
The valve rod is connected by screw thread rotation, after valve is adjusted, screws valve rod screw rod, can play prevents from opening by mistake big work
With；Further, the screw-socket of valve rod screw rod screws valve rod screw rod after flow regulates using special-shaped screw-socket, can be to prevent
Only non-designated personnel tune up valve opening, so as to effectively ensure the balance and stability of pipe network system.
The valve rod top is fixed with handwheel 16 by nut 15, it is preferred that the centre on the top of the handwheel is equipped with hand
The nut of fixed handwheel and valve rod, valve rod screw rod can be closed, play the role of sealing and dustproof, waterproof by grinding wheel press cap 14,
The top of the handwheel is equipped with the arrow of rotation indicating graduation and instruction switch direction, to facilitate the operation of the utility model.
Middle sleeve 11 is equipped on the outside of the inner sleeve, the lower part of the middle sleeve and the handwheel is threadably secured company
It connects, the outside of the lower part of the middle sleeve and handwheel is equipped with outer sleeve 10, and the outer sleeve is set in described by interference fit
It the outside of the upside on the end edge of inner sleeve can be with so as to so that the utility model has the function of dust-proof, waterproof centainly
Take into account beauty.
It is disclosed by the utility model it is each preferably with optional technological means, unless otherwise indicated and a preferred or optional skill
Art means are that further limiting for another technological means is outer, can form several different technical solutions in any combination.
Claims (10)
1. a kind of venturi type balanced valve, including valve body, interior be equipped with of the intracorporal medium runner of valve is made of valve seat and spool
Valve seal pair, it is characterised in that the inlet side medium runner and/or outlet-side media runner of the valve seal pair are equipped with
Pressure area is surveyed, the medium runner for surveying pressure area is straight channel, including undergauge section and non-undergauge section, and the undergauge section is equipped at least
One is used for the detection hole of pressure detecting, at least one detection hole for pressure detecting is arranged in the non-undergauge section.
2. venturi type balanced valve according to claim 1, it is characterised in that the survey pressure area is located at the valve seal
Secondary outlet side.
3. venturi type balanced valve according to claim 1, it is characterised in that the non-undergauge section equipped with detection hole is located at institute
State the rear of undergauge section.
4. venturi type balanced valve according to claim 1, it is characterised in that the survey pressure area includes isometrical straight tube pipe
The pore of hole and the short tube being set in the isometrical straight tube pore is constituted, the outer rim of the short tube and the straight tube pore
Hole wall sealing, the pore of the short tube constitute the undergauge section for surveying pressure area, do not set described in the straight tube pore composition of short tube
Respective pressure measuring unit is separately installed on the tube wall of the non-undergauge section of survey pressure area, the undergauge section and non-undergauge section, it is each described
The survey pressure probe of pressure measuring unit is respectively protruding into the undergauge section and non-undergauge section.
5. venturi type balanced valve according to claim 1 to 4, it is characterised in that for the valve seal to be arranged
Secondary medium runner is obliquely installed, and both ends are respectively communicated with the inlet side medium runner and outlet-side media of the valve seal pair
Runner, the valve base sealing are mounted on the valve body or process with valve body integral type, be equipped on the spool valve core head and
Spool gasket, the medial surface of the valve seat and upper surface form sealing pair or mistake between the valve core head and spool gasket respectively
Runner.
6. venturi type balanced valve according to claim 5, it is characterised in that the medium runner of the valve seal pair
Central axis and valve body main shaft direction are in 45 degree to 60 degree angles, and roll tiltedly to valve inlet.
7. venturi type balanced valve according to claim 1, it is characterised in that in the import of the valve seat on the valve body
The axis direction of side is open equipped with oblique upper, and the oblique upper opening has been connected through a screw thread inner sleeve, the inner sleeve
It is equipped with sealing ring between thread root and oblique upper opening, end edge, the outer diameter on the end edge are equipped on the outside of the inner sleeve
It is essentially identical with the outer diameter of oblique upper opening, and be pressed in the oblique upper opening, the lower half portion of the spool is real
Heart body, top half are hollow cylindrical, and hollow cylindrical part is connected by screw thread and valve rod rotation, in the spool
Portion and the inner sleeve are glade plane space cooperation, and the middle part of the spool is equipped with groove, and sealing ring is equipped in the groove, described
The middle inside of inner sleeve is equipped with retention bead, its axis direction of the outer lateral edge of the hollow cylindrical part of the spool is equipped with limit
Position groove, the retention bead are matched with the limiting groove, and the inside upper part of the inner sleeve is equipped with limited step, described
The middle part of valve rod is equipped with the retention bead that matches with the limited step on the inner sleeve, in the inner sleeve on the valve rod
Top be equipped with valve rod retainer ring.
8. venturi type balanced valve according to claim 7, it is characterised in that the valve rod is cylindrical shape, columnar
Inside is equipped with valve rod screw rod, and the valve rod screw rod is connect with the valve rod by screw thread rotation, the screw-socket of the valve rod screw rod
Using special-shaped screw-socket, the valve rod top is fixed with handwheel by nut.
9. venturi type balanced valve according to claim 8, it is characterised in that be equipped with middle sleeve, institute on the outside of the inner sleeve
It states middle sleeve and is threadably secured with the lower part of the handwheel and is connect, the outside of the lower part of the middle sleeve and handwheel is equipped with housing
Cylinder, the outer sleeve are set in the outside of the upside on the end edge of the inner sleeve by interference fit.
10. venturi type balanced valve according to claim 1 to 4, it is characterised in that the spool is driven by spool
Handwheel of the mechanism connection for driving it to move axially, the top of the handwheel are equipped with rotation indicating graduation and instruction switch direction
Arrow, the centre on the top of the handwheel is equipped with handwheel gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821671346.4U CN209325061U (en) | 2018-10-16 | 2018-10-16 | Venturi type balanced valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821671346.4U CN209325061U (en) | 2018-10-16 | 2018-10-16 | Venturi type balanced valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209325061U true CN209325061U (en) | 2019-08-30 |
Family
ID=67708033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821671346.4U Active CN209325061U (en) | 2018-10-16 | 2018-10-16 | Venturi type balanced valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209325061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680797A (en) * | 2022-12-01 | 2023-02-03 | 杭州汽轮动力集团股份有限公司 | High-pressure oil pipeline quick closing device |
-
2018
- 2018-10-16 CN CN201821671346.4U patent/CN209325061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115680797A (en) * | 2022-12-01 | 2023-02-03 | 杭州汽轮动力集团股份有限公司 | High-pressure oil pipeline quick closing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209325061U (en) | Venturi type balanced valve | |
| CN203892601U (en) | Precise directional control valve | |
| CN101245859B (en) | Vertical balance valve | |
| CN112197012B (en) | Ceramic control valve with dual flow control function | |
| JP6111330B2 (en) | Chromatography column nozzle | |
| US2073372A (en) | Fluid meter for gas administering machines | |
| US4245669A (en) | Self-actuated flow regulator system | |
| CN206280559U (en) | Import and export the self-balancing valve of ratio in a kind of adjustable and balancing chamber | |
| CN204705497U (en) | A kind of liquid flow measurement system | |
| CN207145706U (en) | Adjustable dynamic balance valve | |
| CN104633212A (en) | Valve body for numerical control flow valve | |
| CN207989870U (en) | A kind of split type adjustable flow dynamic balance valve | |
| CN206145156U (en) | Balance valve | |
| CN209583188U (en) | Hydraulic tension balance roller | |
| CN2914061Y (en) | Sampling valve of multidigit sampling device | |
| CN208252922U (en) | Flow control valve | |
| CN202756644U (en) | Precision air current throttle valve | |
| CN206694569U (en) | The manual adjustable in dynamic balance valve of valve courage formula | |
| CN206930322U (en) | A kind of metering micromatic setting of gas meter, flow meter | |
| CN106969164B (en) | Novel characteristic-variable metering V-shaped ball valve and metering method thereof | |
| CN204664552U (en) | Valve body on numerical control flux valve | |
| CN204439048U (en) | Hole location measuring instrument | |
| CN110579247B (en) | Telescopic air volume cover for measuring air volume of spherical nozzle | |
| CN208595253U (en) | A kind of Multifunctional cast iron ball valve | |
| CN220320361U (en) | Proportional regulating flow valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |