CN205605912U - Differential pressure balance valve - Google Patents
Differential pressure balance valve Download PDFInfo
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- CN205605912U CN205605912U CN201520802519.1U CN201520802519U CN205605912U CN 205605912 U CN205605912 U CN 205605912U CN 201520802519 U CN201520802519 U CN 201520802519U CN 205605912 U CN205605912 U CN 205605912U
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Abstract
The utility model provides a differential pressure balance valve. It includes valve body and case, including fill water cavity in the valve body, the return water mouth that fill water cavity has the water inlet of being connected with the end of intaking and is connected with the return water end, the case is fixed on the valve body, and the one of which end position is in fill water cavity, have the control chamber in the case, the control intracavity is equipped with the diaphragm, and the diaphragm will be controlled the chamber and separate for first control chamber and second control chamber, the first control intracavity is provided with first spring, and second control intracavity is provided with the second spring, the first control chamber has presses mouthful with leading of system front end press joining, just first spring is connected with the pressure regulating device, and the pressure regulating device is used for setting up applys elasticity on the first spring, the case is including having a telescopic valve cone, and the valve cone is gone into the water end (W. E. ) with fill water cavity and is switched on, and system's rear end pressure is that fill water cavity entries the pressure of end pressure power and second control intracavity and is switched on by the through -hole, and the elasticity on the second spring is exerted to second control chamber pressure. Above -mentioned differential pressure balance valve enables controlled system's pressure differential invariant.
Description
Technical field
This utility model relates to valve technology field, is specifically related to a kind of differential pressure balancing valve.
Background technology
Differential Pressure Controller is that one keeps controlled system pressure reduction not against exterior power
Constant hydraulic equilibrium valve, in the water system of urban heating (air-conditioning), keeps quilt
Ore-controlling Role (community, building, unit, user, an equipment ...)
Pressure reduction be definite value, be primarily adapted for use in from main regulation, measure by door, the variable-flow of household metering
System.
Differential Pressure Controller be not required to the external energy rely on controlled medium pressure itself change into
Row is automatically adjusted, and the flow deviation that the automatic residual head eliminating pipe network and pressure oscillation cause is permanent
Determine user's inlet outlet pressure differential, contribute to stabilisation systems and run.
But in prior art, at networking pressure, fluctuation, and the resistance within controlled device occur
When power changes, Differential Pressure Controller can not maintain the pressure reduction in controlled device well
Constant.
Summary of the invention
This utility model is intended at least to solve one of technical problem present in prior art, proposes
A kind of differential pressure balancing valve, it in the pressure oscillation of water flowing intracavity, and can control in chamber
During pressure change, the pressure reduction maintaining controlled system is constant.
This utility model provides a kind of differential pressure balancing valve, and it includes valve body and spool, described valve body
Inside include water flowing chamber；Described water flowing chamber has the water inlet being connected with water inlet end and connects with backwater end
The water return outlet connect；Described spool is fixed on valve body, and its one end is positioned at water flowing intracavity；Described
Having control chamber in spool, described control intracavity is provided with barrier film, and described barrier film will control chamber and separate
It is that the first control chamber and second controls chamber；Described first controls intracavity is provided with the first spring, institute
State the second control intracavity and be provided with the second spring；Described first controls chamber has and system front end pressure
The pilot port that power connects, and described first spring is connected with pressure regulating device, described pressure regulating device use
In the elastic force that setting is applied on described first spring；Described spool includes having telescopic valve
Cone, described valve cone and the conducting of water flowing chamber water intake end, water flowing chamber water intake end pressure and second controls chamber
Interior pressure is turned on by through hole, and the second pressure controlling chamber is applied on the second spring.
Wherein, described spool also includes that connecting rod, described connecting rod include regulating axle and little axle；Institute
State connecting rod install valve body on cover, and between its with upper cover, jump ring is connected, the installation of described valve cone
On described little axle；Described regulation axle is connected with pressure regulating device.
Wherein, described pressure regulating device includes runner, and connecting rod described in described driven by rotating wheel rotates,
Change the pressure being applied on the first spring.
Wherein, the edge of described barrier film is fixed by valve body and upper cover, and it is centrally through being positioned at it
First tabletting of both sides and the second tabletting are fixed on described little axle.
Wherein, described water inlet and water return outlet are respectively arranged with adpting flange, in order to respectively with
Water inlet end and backwater end connect.
Wherein, described valve body is additionally provided with the first passage connected with water inlet, described
One passage is used for measuring intake pressure.
Wherein, described valve body is additionally provided with the second channel connected with water return outlet, described
Two passages are used for measuring pressure of return water.
Wherein, the material of described valve body is spheroidal graphite cast-iron.
Wherein, described runner being provided with indicating member, described indicating member is used for indicating institute
State the number of turns that runner rotates.
This utility model has the advantages that
The differential pressure balancing valve that this utility model provides, can convenient and accurately set controlled system
System pressure reduction (system front end pressure and the difference of System Back-end pressure), i.e. first controls cavity pressure
And the difference between the second control cavity pressure (being equal to the pressure of water flowing chamber water intake end), meanwhile,
When change and fluctuation occurs in controlled system forefront pressure, (water flowing chamber enters to maintain the second control chamber
Water end (W.E.)) and the first pressure reduction controlled between chamber fixes and system pressure difference is fixed.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes description
A part, be used for explaining this utility model together with detailed description below, but not
Constitute restriction of the present utility model.In the accompanying drawings:
The schematic diagram of the differential pressure balancing valve that Fig. 1 provides for present embodiment；
Fig. 2 is the schematic diagram of runner in differential pressure balancing valve shown in Fig. 1.
Wherein, reference:
1: valve body.2: spool；3: runner；4: the first tablettings；5: the second tablettings；
10: water flowing chamber；10a: water inlet；10b: water return outlet；11: upper cover；12: the
One passage；13: second channel；
20: barrier film；Control chamber at 21: the first；Control chamber at 22: the second；23: the first springs；
24: the second springs；26: valve cone；27: regulation axle；28: little axle；
30: indicating member；31: the first indicating members；32: the second indicating members.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.Should
When being understood by, detailed description of the invention described herein is merely to illustrate and explains that this practicality is new
Type, is not limited to this utility model.
This utility model provides the embodiment of a kind of differential pressure balancing valve.Fig. 1 is this embodiment party
The schematic diagram of the differential pressure balancing valve that formula provides.As it is shown in figure 1, described differential pressure balancing valve includes valve
Body 1 and spool 2, include water flowing chamber 10 in described valve body 1；Described water flowing chamber 10 have with
Water inlet 10a that water inlet end connects and the water return outlet 10b that is connected with backwater end；Described spool 2
It is fixed on valve body 1, and its one end is positioned at water flowing chamber 10；In described spool 2, there is control
Chamber processed, described control intracavity is provided with barrier film 20, and control chamber is divided into first by described barrier film 20
Control chamber 21 and second and control chamber 22；It is provided with the first spring in described first control chamber 21
23, it is provided with the second spring 24 in described second control chamber 22；Described first controls chamber 21
Have and the pilot port of system front end press-in connection, and described first spring 23 and pressure regulating device
Connecting, described pressure regulating device is for arranging the elastic force being applied on described first spring 23；Institute
Stating spool 2 and include having telescopic valve cone 26, described valve cone is led with water flowing chamber 10 water intake end
Logical, water flowing chamber 10 water intake end and second is turned on by through hole in controlling chamber 21, and second controls chamber
21 pressure are applied on the second spring 24.
In the present embodiment, can convenient and accurately set the pressure reduction of controlled system, its
Detailed process is as follows: first, is regulated the pressure being applied on the first spring 23 by pressure regulating device
Power, makes the active force change of the first spring 23 that barrier film 20 receives；On this basis, second
The compressive state of spring 24 changes so that valve cone 26 away from or near valve openings, regulation
The aperture of valve openings, makes the pressure respective change in water flowing chamber 10.
Meanwhile, (such as, flowing from water return outlet 10b during the change of the pressure in water flowing chamber 10
During the changes in flow rate of the liquid gone out), the pressure change that described valve cone 26 receives, it is at this moment
Shrink because the pressure in water flowing chamber 10 increases, uphold because the pressure in water flowing chamber 10 reduces.
In this case, the retracted position of the second spring 24 changes, and then makes barrier film 20 deform,
At this moment, owing to the first spring 23 can overcome the second spring 24 to be applied to the elastic force on barrier film 20,
The amplitude that barrier film 20 can be made to deform reduces.
Described spool 2 also includes that connecting rod, described connecting rod include regulating axle 27 and little axle 28；Institute
State connecting rod to install on the upper cover 11 of valve body 1, and between its with upper cover 11, jump ring is connected, described
Valve cone 26 is arranged on described little axle 28；Described regulation axle 27 is connected with pressure regulating device.
Specifically, described pressure regulating device includes that runner 3, described runner 3 drive described connecting rod to revolve
Turn, change the pressure being applied on the first spring 23.Preferably, as in figure 2 it is shown, described
Being provided with indicating member 30 on runner 3, described indicating member 30 is used for indicating described runner 3
The number of turns rotated；Further, described indicating member 30 can include for indicating described turning
Wheel has rotated the first indicating member 31 of number of full circle and for indicating described runner 3 real time position
The second indicating member 32；Such as, indicating 2 at the first indicating member 31, the second instruction is single
During unit's 32 instruction 3, represent that described runner 3 have rotated 2 whole circles, be simultaneously in rotation
The position of 0.3 circle, the most described runner 3 have rotated 2.3 circles.
The edge of described barrier film 20 is fixed by valve body 1 and upper cover 11, and it is centrally through being positioned at
First tabletting 4 of its both sides and the second tabletting 5 are fixed on described connecting rod.
Described water inlet 10a and water return outlet 10b is respectively arranged with adpting flange, in order to respectively
It is connected with water inlet end and backwater end.
The first passage 12 connected with water inlet 10a it is additionally provided with on described valve body 1, described
First passage 12 is used for measuring intake pressure.Additionally, be additionally provided with on described valve body 1 and return
The second channel 13 of mouth of a river 10b connection, described second channel 13 is used for measuring pressure of return water.
Preferably, the material of described valve body 1 is spheroidal graphite cast-iron, so can make valve body 1 institute
The power that can bear is bigger.
Duty to the differential pressure balancing valve in present embodiment is carried out point below in conjunction with the accompanying drawings
Analysis.
In the first scenario, i.e. increase at pressure of supply water P1, when pressure of return water P3 is constant,
The supply head (that is: P1-P3) at networking increases, and barrier film 20 drives valve cone 26 to move down, i.e.
Move to valve closing direction, make the resistance (that is: P2-P3) of now valve increase, i.e. P2
Increase；Otherwise in like manner, when pressure of supply water P1 reduces, and this moment, pressure of return water P3 is constant,
The supply head (that is: P1-P3) at networking reduces, and barrier film 20 drives and moves, i.e. on valve cone 26
Move to valve opening direction, make the resistance of now valve reduce, i.e. P2 reduces.Finally reach
To poised state, Δ P=P1-P2, 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. change when the resistance within controlled loop, such as certain
One branch road turns off, and the drag overall of loop increases, this moment, and P2 increases, and barrier film 20 drives valve
Moving on cone 26, i.e. move to valve opening direction, make the resistance of now valve reduce, P2 is again
Reduce and fall after rise；Otherwise in like manner, the drag overall of loop reduces, this moment, P2 reduces, barrier film
20 drive valve cone 26 to move down, and i.e. move to valve closing direction, make the resistance of now valve increase
Greatly, P2 increases again rise.It is finally reached poised state, Δ P=P1-P2, almost unchanged.
The differential pressure balancing valve that this utility model provides, can convenient and accurately set controlled system
System pressure reduction (system front end pressure and the difference of System Back-end pressure), i.e. first controls chamber 21
Pressure and second controls between chamber 22 pressure (being equal to the pressure of water flowing chamber 10 water intake end)
Difference, meanwhile, when change and fluctuation occurs in controlled system forefront pressure, maintains the second control
Chamber 22 (water flowing chamber 10 water intake end) and the first pressure reduction controlled between chamber 21 are fixed and system
Pressure reduction is fixed.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model
And the illustrative embodiments used, but this utility model is not limited thereto.For ability
For those of ordinary skill in territory, in the situation without departing from spirit of the present utility model and essence
Under, various modification and improvement can be made, these modification and improvement are also considered as of the present utility model
Protection domain.
Claims (9)
1. a differential pressure balancing valve, it is characterised in that include valve body and spool, include water flowing chamber in described valve body；Described water flowing chamber has the water inlet being connected with water inlet end and the water return outlet being connected with backwater end；
Described spool is fixed on valve body, and its one end is positioned at water flowing intracavity；Having control chamber in described spool, described control intracavity is provided with barrier film, and control chamber is divided into the first control chamber and second and controls chamber by described barrier film；
Described first controls intracavity is provided with the first spring, and described second controls intracavity is provided with the second spring；
Described first controls chamber has and the pilot port of system front end press-in connection, and described first spring is connected with pressure regulating device, and described pressure regulating device is for arranging the elastic force being applied on described first spring；
Described spool includes having telescopic valve cone, and described valve cone and the conducting of water flowing chamber water intake end, water flowing chamber water intake end pressure and the second pressure controlling intracavity are turned on by through hole, and the second pressure controlling chamber is applied on the second spring.
Differential pressure balancing valve the most according to claim 1, it is characterised in that described spool also includes that connecting rod, described connecting rod include connecting and regulates axle and little axle；Covering on described connecting rod installation valve body, and between its with upper cover, jump ring is connected, described valve cone is arranged on described little axle；
Described regulation axle is connected with pressure regulating device.
Differential pressure balancing valve the most according to claim 2, it is characterised in that described pressure regulating device includes runner, connecting rod described in described driven by rotating wheel rotates, and changes the pressure being applied on the first spring.
Differential pressure balancing valve the most according to claim 2, it is characterised in that the edge of described barrier film is fixed by valve body and upper cover, it is fixed on described little axle centrally through the first tabletting and the second tabletting being positioned at its both sides.
Differential pressure balancing valve the most according to claim 1, it is characterised in that described water inlet and water return outlet are respectively arranged with adpting flange, in order to be connected with water inlet end and backwater end respectively.
Differential pressure balancing valve the most according to claim 1, it is characterised in that be additionally provided with the first passage connected with water inlet on described valve body, described first passage is used for measuring intake pressure.
Differential pressure balancing valve the most according to claim 1, it is characterised in that be additionally provided with the second channel connected with water return outlet on described valve body, described second channel is used for measuring pressure of return water.
Differential pressure balancing valve the most according to claim 1, it is characterised in that the material of described valve body is spheroidal graphite cast-iron.
Differential pressure balancing valve the most according to claim 3, it is characterised in that be provided with indicating member on described runner, the number of turns that described indicating member rotates for indicating described runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802519.1U CN205605912U (en) | 2015-10-15 | 2015-10-15 | Differential pressure balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520802519.1U CN205605912U (en) | 2015-10-15 | 2015-10-15 | Differential pressure balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205605912U true CN205605912U (en) | 2016-09-28 |
Family
ID=56960479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520802519.1U Active CN205605912U (en) | 2015-10-15 | 2015-10-15 | Differential pressure balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205605912U (en) |
-
2015
- 2015-10-15 CN CN201520802519.1U patent/CN205605912U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181229 Address after: 102206 Room 109, 1st Floor, Building 9, Huilongguan International Information Industry Base Development Road, Changping District, Beijing Patentee after: Beijing HaiLin Energy Saving Technology Inc. Address before: 102208 Huilongguan International Information Industry Base, Changping District, Beijing Patentee before: BEIJING HAILIN LVJIAN ENERGY SAVING TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206 Room 109, 1st Floor, Building 9, Huilongguan International Information Industry Base Development Road, Changping District, Beijing Patentee after: Beijing Hailin Automatic Control Technology Co.,Ltd. Address before: 102206 Room 109, 1st Floor, Building 9, Huilongguan International Information Industry Base Development Road, Changping District, Beijing Patentee before: HAILIN ENERGY TECHNOLOGY Inc. |