CN106594342A - Pressure difference balance valve - Google Patents
Pressure difference balance valve Download PDFInfo
- Publication number
- CN106594342A CN106594342A CN201510667049.7A CN201510667049A CN106594342A CN 106594342 A CN106594342 A CN 106594342A CN 201510667049 A CN201510667049 A CN 201510667049A CN 106594342 A CN106594342 A CN 106594342A
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- Prior art keywords
- pressure
- valve
- sleeve
- valve body
- sensitive
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention provides a pressure difference balance valve. The pressure difference balance valve comprises a valve body, an upper cover, a lower cover, a hand wheel, an adjusting shaft, a small shaft, an adjusting spring, an adjusting sleeve, a pressure induction sleeve, a valve base and a pressure spring; a water passing cavity is formed in the valve body; the adjusting shaft is connected with a snap spring of the upper cover; the hand wheel is connected with the adjusting shaft; the adjusting spring surrounds the adjusting shaft, and the upper end and the lower end thereof are respectively contacted with a nut and a bracket mounted on the adjusting shaft; the adjusting sleeve is fixedly mounted in the valve body for dividing the water passing cavity into a water inlet cavity and a water return cavity; the upper end of the small shaft is connected with the bracket; the upper end of the adjusting sleeve is fixed with the valve base; the adjusting sleeve is fixedly connected with the valve body, and the pressure induction sleeve is arranged at the lower end; the pressure induction sleeve surrounds the small shaft, and is fixed with the small shaft; the pressure induction sleeve is in threaded connection with a valve taper, and can drive the small shaft; the valve taper and the bracket can slide up and down corresponding to the valve base; the pressure spring surrounds the small shaft, and the upper end and the lower end thereof are respectively contacted with the valve base and the pressure induction sleeve; a sealing sleeve is mounted between the valve body and the lower cover, and forms a pressure induction cavity with the lower cover and the pressure induction sleeve; and the lower cover is provided with a pressure guide pipe for communicating the pressure induction cavity with a water inlet end.
Description
Technical field
The present invention relates to valve technology field, and in particular to a kind of differential pressure balancing valve.
Background technology
Differential Pressure Controller is a kind of hydraulic regime for keeping controlled system pressure reduction constant not against exterior power
Balance valve, in the water system for urban heating (air-conditioning), keeps controlled system (cell, building, a list
Unit, user, an equipment ...) pressure reduction be definite value, be primarily adapted for use in from main regulation, measure by door, household metering
Variable flow system.
Differential Pressure Controller is not required to the external energy and automatically adjusts by the change of controlled medium pressure itself, automatically
The flow deviation constant user inlet outlet pressure differential that the residual head and pressure oscillation for eliminating pipe network causes, contributes to stabilisation systemss fortune
OK.
But in prior art, when networking pressure appearance fluctuation, and the resistance inside controlled device change, rely on oneself
Formula differential pressure control valve can not well maintain the pressure reduction in controlled device constant.And, in existing self-balanced differential pressure valve
In, generally use the pressure reduction that the diaphragm of quality of rubber materials comes between control system front-end and back-end, easily quality of rubber materials non-refractory, mill
Damage, short life is easily damaged valve, and so as to cause the systems such as existing heating, air-conditioning easily to break down, reliability is not high.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art, it is proposed that a kind of differential pressure balancing valve,
It in the pressure oscillation of water flowing intracavity, and during pressure change in control chamber, can maintain the pressure reduction of controlled system constant；Together
When, it does not also include diaphragm, such that it is able to improve the reliability of differential pressure balancing valve.
The present invention provides a kind of differential pressure balancing valve, and it includes including water flowing chamber in valve body, upper lid, lower cover, the valve body；Institute
Water flowing chamber is stated with the water inlet being connected with water inlet end and the water return outlet being connected with backwater end；The upper lid and lower cover are fixed on valve
On body；The differential pressure balancing valve also includes handwheel, adjustment axis, little axle, regulation spring, regulating sleeve, pressure-sensitive sleeve, valve seat and pressure
Spring；Sealed using sealing ring between the adjustment axis and upper lid, adjustment axis are connected with nut thread；The handwheel is located at outside valve body
Side, and it is connected with the adjustment axis, to drive the adjustment axis relative to the upper lid rotation；The regulation spring is located at
Valve body inner side, it is around the adjustment axis, and its top and bottom is respectively installed in the nut and support in the adjustment axis
Contact；The regulating sleeve is fixed on valve inner, and the water flowing chamber is divided into intake antrum and backwater cavity by it；It is described little
Axle upper end is connected with support；And regulating sleeve upper end is further fixed on valve seat, regulating sleeve and it is fixedly connected with the valve body, lower end is arranged
Thoughts gland cylinder, pressure-sensitive liner ring is fixed around little axle and with little axle, and pressure-sensitive sleeve is threadedly coupled pressure-sensitive sleeve with valve cone and can drive
Little axle, valve cone and support are slided up and down relative to valve seat；The stage clip around the little axle, and its top and bottom respectively with valve
Seat and pressure-sensitive barrel contacts；The sealing shroud is arranged between valve body and lower cover, and itself and lower cover, pressure-sensitive sleeve form pressure-sensitive
Chamber, on the lower lid impulse piping for connecting pressure-sensitive chamber with water inlet end is provided with.
Wherein, the water inlet and water return outlet are respectively arranged with adpting flange, to connect with water inlet end and backwater end respectively
Connect.
Wherein, be additionally provided with the first passage connected with intake antrum on the valve body, the first passage be used to measuring into
Water pressure.
Wherein, the second channel connected with backwater cavity is additionally provided with the valve body, the second channel is used to measure back
Water pressure.
Wherein, the material of the valve body is spheroidal graphite cast-iron.
Wherein, indicating member is provided with the handwheel, the indicating member is used to indicate the number of turns of the hand wheel rotating.
Wherein, the indicating member includes the first subelement and the second subelement, and first subelement is used to indicate institute
The number of full circle of hand wheel rotating is stated, second subelement is used to indicate the position that the handwheel is located in real time.
Wherein, the sealing ring is double O-ring seals.
The invention has the advantages that：
The present invention provide differential pressure balancing valve, can with it is convenient and accurately set controlled system pressure reduction (system front end pressure
With the difference of System Back-end pressure), i.e., pressure-sensitive chamber and water inlet cavity pressure between difference, meanwhile, in controlled system forefront pressure
When change occur and fluctuating, the pressure reduction between maintenance intake antrum and backwater cavity is fixed and system pressure difference is fixed.Additionally, in the present invention
Differential pressure balancing valve there is no diaphragm, with higher reliability.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
The schematic diagram of the differential pressure balancing valve that Fig. 1 is provided for present embodiment；
Fig. 2 is the schematic diagram of handwheel in differential pressure balancing valve shown in Fig. 1.
Wherein, reference：
1：Handwheel；2：Upper lid；4：Support；5：Little axle；6：Regulating sleeve；7：Pressure-sensitive sleeve；8：Sealing shroud；9：Lower cover；11：
Valve body；12：Stage clip；13：Valve cone；14：Valve seat；16：Adjustment axis；17：Adjust spring；18：Nut；30：Indicating member；31：The
One indicating member；32：Second indicating member.90：Connecting pipe；100：Intake antrum；101：Backwater cavity；102：Pressure-sensitive chamber；103：The
One passage；104：Second channel.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The present invention provides a kind of embodiment of differential pressure balancing valve.The differential pressure balancing valve that Fig. 1 is provided for present embodiment
Schematic diagram.As shown in figure 1, the differential pressure balancing valve includes including water flowing chamber in valve body 11, upper lid 2, lower cover 9, the valve body 11；
The water flowing chamber has the water inlet being connected with water inlet end and the water return outlet being connected with backwater end；The water inlet and water return outlet point
Adpting flange is not provided with, to be connected with water inlet end and backwater end respectively.The upper lid 2 and lower cover 9 are fixed on valve body 11.
The differential pressure balancing valve also includes handwheel 1, adjustment axis 16, little axle 5, regulation spring 17, regulating sleeve 6, pressure-sensitive sleeve 7, valve seat
14th, valve cone 13 and stage clip 12.The adjustment axis 16 are threadedly coupled with upper lid 2；The handwheel 1 is located at the outside of valve body 11, and its with
The adjustment axis 16 connect, to drive the phase of the adjustment axis 16
For the upper lid 2 rotates；The regulation spring 17 is located at the inner side of valve body 11, and it surround the adjustment axis 16, and
The nut 18 and support 4 that its top and bottom is respectively installed in the adjustment axis 16 is contacted；The regulating sleeve 6 is installed solid
It is scheduled on inside valve body 11, the water flowing chamber is divided into intake antrum 100 and backwater cavity 101 by it；The upper end of little axle 5 and adjustment axis
16 connections；And the little upper end of axle 5 is further fixed on valve seat 14 and valve cone 13, lower end is provided with pressure-sensitive sleeve 7, the ring of pressure-sensitive sleeve 7
Around the little axle 5, and can relatively described little axle 5 slide；The stage clip 12 is around the little axle 5, and its top and bottom difference
Contact with valve seat 14 and pressure-sensitive sleeve 7；The sealing shroud 8 is arranged between valve body 11 and lower cover 9, and itself and lower cover 9, pressure-sensitive set
Cylinder 7 forms pressure-sensitive chamber 102, and the impulse piping 90 for connecting pressure-sensitive chamber 102 with water inlet end is provided with the lower cover 9.
In the present embodiment, can be as follows with pressure reduction that is convenient and accurately setting controlled system, its detailed process：It is first
First, handwheel 1 is provided centrally with square hole, and the top of adjustment axis 16 has square shaft head, and the square hole coordinates with square shaft head, and by interior hexagonal
Screw lock, so, rotates handwheel 1, and adjustment axis 16 can be driven to rotate；When adjustment axis 16 are rotated, by upper on the circumference of nut 18
The restriction of the endoporus of lid 2, can only move up and down, and (system pressure difference of setting is represented so as to change the retracted position for adjusting spring 17
Value), so adjust spring 17 and promote the pressure of pressure-sensitive sleeve 7 just corresponding increase or to reduce so that the aperture of valve increase or
Reduce, change the pressure differential between water flowing chamber and pressure-sensitive chamber 102.
In the present embodiment, with the pressure in pressure-sensitive chamber 102 as P1, with the pressure in intake antrum 100 as P2, with backwater
Pressure in chamber 102 is P3.Pressure-sensitive sleeve 7 and valve cone 13 are threadedly coupled, when the pressure P1 in pressure-sensitive chamber 102 increases, valve cone
13 and pressure-sensitive sleeve 7 on so that now, the aperture of valve reduces, the pressure P2 increases in intake antrum 100, then it is therebetween
Difference DELTA P=P1-P2, Δ P keeps constant.
The first passage 103 connected with intake antrum 100 is additionally provided with the valve body 11, the first passage 103 is used for
Measurement intake pressure.
The second channel 104 connected with backwater cavity 101 is additionally provided with the valve body 11, the second channel 104 is used for
Measurement pressure of return water.
The material of the valve body 11 is spheroidal graphite cast-iron, can so make the power that valve body 11 can bear bigger.
Indicating member 30 is provided with the handwheel 1, the indicating member 30 is used to indicate the circle that the handwheel 1 is rotated
Number.Specifically, the indicating member 30 includes the first subelement 31 and the second subelement 32, and first subelement 31 is used to refer to
Show the number of full circle that the handwheel 1 is rotated, second subelement 32 is used to indicate the position that the handwheel 1 is located in real time.For example,
2 are indicated in the first subelement 31, when the second subelement 32 indicates 3, represents that the handwheel 1 have rotated 2 whole circles, while being in
The position of the circle of rotation 0.3, i.e., described handwheel 1 have rotated 2.3 circles.
The working condition of the differential pressure balancing valve in present embodiment is analyzed below in conjunction with the accompanying drawings.
In the first scenario, i.e., increase in pressure of supply water P1, pressure of return water P3 is constant, and the supply head at networking is (i.e.：
P1-P3) increase, pressure-sensitive sleeve 7 drives and moved on valve cone 13, i.e., move to valve closing direction, makes the resistance of now valve (i.e.：
P2-P3) increase, i.e. P2 increases；In the same manner conversely, when pressure of supply water P1 reduces, pressure of return water P3 is constant, the supply head at networking
(i.e.：P1-P3) reduce, pressure-sensitive sleeve 7 drives valve cone 13 to move down, i.e., move to valve opening direction, makes the resistance of now valve
Reduce, i.e. P2 reduces.Poised state is finally reached, Δ P=P1-P2 is almost unchanged.Preferably, the pressure reduction in present embodiment
Balanced valve operting differential pressure scope is between 0.4-1.8bar.
In the latter case, i.e., the resistance inside controlled loop changes, such as a certain branch road shut-off, loop
Drag overall increases, the moment, and P2 increases, pressure-sensitive sleeve 7 drives valve cone 13 to move down, i.e., move to valve opening direction, makes now
The resistance of valve reduces, and P2 reduces falling again；In the same manner conversely, the drag overall of loop reduces, the moment, P2 reduces, pressure-sensitive sleeve 7
Drive and moved on valve cone 13, i.e., move to valve closing direction, the resistance for making now valve increases, and P2 increases rise again.Finally reach
To poised state, Δ P=P1-P2 is almost unchanged.
The present invention provide differential pressure balancing valve, can with it is convenient and accurately set controlled system pressure reduction (system front end pressure
With the difference of System Back-end pressure), i.e. difference between pressure-sensitive chamber 102 and the pressure of intake antrum 100, meanwhile, before controlled system
When end pressure change occurs and fluctuates, the pressure reduction between maintenance intake antrum 100 and backwater cavity 101 is fixed and system pressure difference is fixed.
Additionally, the differential pressure balancing valve in the present invention does not have diaphragm, with higher reliability.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement for adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (8)
1. water flowing chamber is included in a kind of differential pressure balancing valve, including valve body, upper lid, lower cover, the valve body；The water flowing chamber have with
The water inlet of water inlet end connection and the water return outlet being connected with backwater end；The upper lid and lower cover are fixed on valve body；Its feature exists
In the differential pressure balancing valve also includes handwheel, adjustment axis, little axle, regulation spring, regulating sleeve, pressure-sensitive sleeve, valve seat and pressure
Spring；
Sealed using sealing ring between the adjustment axis and upper lid, the adjustment axis are connected with nut thread；The handwheel is located at
On the outside of valve body, and it is connected with the adjustment axis, to drive the adjustment axis relative to the upper lid rotation；The regulation bullet
Spring is located at valve body inner side, and it is around the adjustment axis, and its top and bottom is respectively installed in the nut in the adjustment axis
With support contact；
The regulating sleeve is fixed on valve inner, and the water flowing chamber is divided into intake antrum and backwater cavity by it；
The little axle upper end is connected with support；And regulating sleeve upper end is further fixed on valve seat, the regulating sleeve and with the valve
Body is fixedly connected, and lower end is provided with pressure-sensitive sleeve, and pressure-sensitive liner ring is fixed around little axle and with little axle, pressure-sensitive sleeve and valve cone screw thread
Connection, pressure-sensitive sleeve can drive little axle, valve cone and support to slide up and down relative to valve seat；The stage clip surround the little axle, and
Its top and bottom respectively with valve seat and pressure-sensitive barrel contacts；The sealing shroud is arranged between valve body and lower cover, and it is with
Lid, pressure-sensitive sleeve form pressure-sensitive chamber, and on the lower lid impulse piping for connecting pressure-sensitive chamber with water inlet end is provided with.
2. differential pressure balancing valve according to claim 1, it is characterised in that the water inlet and water return outlet are respectively arranged with company
Acting flange, to be connected with water inlet end and backwater end respectively.
3. differential pressure balancing valve according to claim 1, it is characterised in that be additionally provided with the valve body and connected with intake antrum
First passage, the first passage be used for measure intake pressure.
4. differential pressure balancing valve according to claim 1, it is characterised in that be additionally provided with the valve body and backwater cavity connects
Logical second channel, the second channel is used to measure pressure of return water.
5. differential pressure balancing valve according to claim 1, it is characterised in that the material of the valve body is spheroidal graphite cast-iron.
6. differential pressure balancing valve according to claim 1, it is characterised in that indicating member is provided with the handwheel, it is described
Indicating member is used to indicate the number of turns of the hand wheel rotating.
7. differential pressure balancing valve according to claim 6, it is characterised in that the indicating member includes the first subelement and the
Two subelements, first subelement is used to indicate the number of full circle of the hand wheel rotating that second subelement to be used to refer in real time
Show the position that the handwheel is located.
8. differential pressure balancing valve according to claim 1, it is characterised in that the sealing ring is double O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510667049.7A CN106594342B (en) | 2015-10-15 | 2015-10-15 | Differential pressure balancing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510667049.7A CN106594342B (en) | 2015-10-15 | 2015-10-15 | Differential pressure balancing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594342A true CN106594342A (en) | 2017-04-26 |
| CN106594342B CN106594342B (en) | 2019-03-15 |
Family
ID=58552709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510667049.7A Active CN106594342B (en) | 2015-10-15 | 2015-10-15 | Differential pressure balancing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594342B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090205716A1 (en) * | 2008-02-19 | 2009-08-20 | P.A. S.P.A. | By-pass and pressure regulator valve |
| CN201827476U (en) * | 2010-09-19 | 2011-05-11 | 卓旦春 | Dynamic pressure differential balance valve |
| CN202972081U (en) * | 2012-11-01 | 2013-06-05 | 卓旦春 | Self-operated differential pressure balance valve |
| CN203131143U (en) * | 2013-03-21 | 2013-08-14 | 欧文托普（中国）暖通空调系统技术有限公司 | Pressure difference adjusting valve |
| CN204253972U (en) * | 2014-11-19 | 2015-04-08 | 浙江科海仪表有限公司 | A kind of self-operated differential pressure regulator |
| CN205078863U (en) * | 2015-10-15 | 2016-03-09 | 北京海林绿建节能技术有限公司 | Differential pressure balance valve |
-
2015
- 2015-10-15 CN CN201510667049.7A patent/CN106594342B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090205716A1 (en) * | 2008-02-19 | 2009-08-20 | P.A. S.P.A. | By-pass and pressure regulator valve |
| CN201827476U (en) * | 2010-09-19 | 2011-05-11 | 卓旦春 | Dynamic pressure differential balance valve |
| CN202972081U (en) * | 2012-11-01 | 2013-06-05 | 卓旦春 | Self-operated differential pressure balance valve |
| CN203131143U (en) * | 2013-03-21 | 2013-08-14 | 欧文托普（中国）暖通空调系统技术有限公司 | Pressure difference adjusting valve |
| CN204253972U (en) * | 2014-11-19 | 2015-04-08 | 浙江科海仪表有限公司 | A kind of self-operated differential pressure regulator |
| CN205078863U (en) * | 2015-10-15 | 2016-03-09 | 北京海林绿建节能技术有限公司 | Differential pressure balance valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106594342B (en) | 2019-03-15 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170516 Address after: 101118 Beijing City, Tongzhou District Song Zhuang Zhen Hao Ge Zhuang Cun Wei Hui Dong 200 meters Applicant after: Beijing British Union Heating Technology Co., Ltd. Address before: 102208 Changping District Huilongguan international information industry base, Beijing Applicant before: BEIJING HAILIN LVJIAN ENERGY SAVING TECHNOLOGY CO., LTD. |
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Effective date of registration: 20171229 Address after: 100176 Beijing Daxing District Beijing economic and Technological Development Zone, Yuncheng street, No. 2, block B, block 603 Applicant after: Beijing gifted Intelligent Energy Saving Technology Co., Ltd. Address before: 101118 Beijing City, Tongzhou District Song Zhuang Zhen Hao Ge Zhuang Cun Wei Hui Dong 200 meters Applicant before: Beijing British Union Heating Technology Co., Ltd. |
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Effective date of registration: 20210720 Address after: 213125 No. 229, Hehai West Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU HEIGHTEN AUTOMATION EQUIPMENT Co.,Ltd. Address before: 100176 room 603, block B, building 1, No.2 Yuncheng street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: Beijing gifted Intelligent Energy Saving Technology Co.,Ltd. |