CN205078863U - Differential pressure balance valve - Google Patents
Differential pressure balance valve Download PDFInfo
- Publication number
- CN205078863U CN205078863U CN201520798039.2U CN201520798039U CN205078863U CN 205078863 U CN205078863 U CN 205078863U CN 201520798039 U CN201520798039 U CN 201520798039U CN 205078863 U CN205078863 U CN 205078863U
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- valve body
- sleeve
- differential pressure
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a differential pressure balance valve, it includes valve body, upper cover, lower cover, hand wheel, regulating spindle, staff, regulating spring, adjusting sleeve, pressure sensing sleeve, disk seat and pressure spring, including fill water cavity in the valve body, the regulating spindle is connected with the upper cover jump ring, the hand wheel with the regulating spindle is connected, and regulating spring encircles the regulating spindle, and its the upper end and the lower extreme installed respectively adjust the contact of epaxial nut and support, the adjusting sleeve installation is fixed inside the valve body, and it separates fill water cavity for intake antrum and return water chamber, staff upper end and leg joint, and adjusting sleeve upper end still is fixed with the disk seat, adjusting sleeve and with valve body fixed connection, the lower extreme is provided with the pressure sensing sleeve, the pressure sensing sleeve surrounds staff and fixed with the staff, pressure sensing sleeve and valve cone threaded connection, the pressure sensing sleeve can drive the staff, valve cone and support slide from top to bottom for the disk seat, the pressure spring encircles the staff, and its upper end contacts with disk seat and pressure sensing sleeve respectively with the lower extreme, the seal cover is installed between valve body and lower cover, and its and lower cover, pressure sensing sleeve formation pressure sensing chamber, covers down to be provided with the pressure sensing chamber and to intake and holds the connecting pipe way of intercommunication.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of differential pressure balancing valve.
Background technique
Differential Pressure Controller does not a kind ofly rely on exterior power and the hydraulic equilibrium valve keeping controlled system pressure reduction constant, in water system for urban heating (air-conditioning), the pressure reduction keeping controlled system (community, building, a unit, a user, an equipment ...) is definite value, mainly be applicable to from main regulation, measure by door, the variable flow system of household metering.
Differential Pressure Controller does not need the external energy to rely on the change of controlled medium pressure itself to automatically adjust, and the flow deviation constant user inlet outlet pressure differential that the residual pressure head of automatic elimination pipe network and pressure surge cause contributes to stable system and runs.
But in prior art, occur fluctuation at networking pressure, and when the resistance of controlled device inside changes, the pressure reduction that Differential Pressure Controller can not maintain in controlled device is well constant.And, in existing self-balanced differential pressure valve, the diaphragm of general use quality of rubber materials carrys out the pressure reduction between control system front-end and back-end, quality of rubber materials non-refractory, easy to wear, the life-span is short, and valve is easily damaged, thus causing the systems such as existing heating, air-conditioning easily to break down, reliability is not high.
Model utility content
The utility model is intended at least to solve one of technical problem existed in prior art, proposes a kind of differential pressure balancing valve, and it can pressure surge in water flowing chamber, and during pressure change in control chamber, the pressure reduction maintaining controlled system is constant; Meanwhile, it does not also comprise diaphragm, thus can improve the reliability of differential pressure balancing valve.
The utility model provides a kind of differential pressure balancing valve, and it comprises valve body, upper cover, lower cover, comprises water flowing chamber in described valve body; Described water flowing chamber has the water intake be connected with feed-water end and the backwater mouth be connected with backwater end; Described upper cover and lower cover are fixed on valve body; Described differential pressure balancing valve also comprises handwheel, adjusting axle, little axle, Regulation spring, regulating sleeve, pressure-sensitive sleeve, valve seat and stage clip; Adopt seal ring to seal between described adjusting axle and upper cover, adjusting axle is connected with nut thread; Described handwheel is positioned at outside valve body, and it is connected with described adjusting axle, rotates relative to described upper cover in order to drive described adjusting axle; Described Regulation spring is positioned at inside valve body, and it is around described adjusting axle, and the nut that its top and bottom are installed on described adjusting axle respectively contacts with support; Described regulating sleeve is fixed on valve inner, and described water flowing chamber is divided into water-inlet cavity and backwater cavity by it; Described little axle upper end is connected with support; And regulating sleeve upper end is also fixed with valve seat, regulating sleeve and being fixedly connected with valve body, lower end is provided with pressure-sensitive sleeve, and pressure-sensitive liner ring is around little axle and fix with little axle, pressure-sensitive sleeve is threaded with valve cone, and pressure-sensitive sleeve can drive little axle, valve cone and support to slide up and down relative to valve seat; Described stage clip around described little axle, and its top and bottom respectively with valve seat and pressure-sensitive barrel contacts; Described stuffing box gland is arranged between valve body and lower cover, and itself and lower cover, pressure-sensitive sleeve form pressure-sensitive chamber, cover the impulse piping being provided with and being communicated with feed-water end in pressure-sensitive chamber under described.
Wherein, described water intake and backwater mouth are respectively arranged with adpting flange, in order to be connected with feed-water end and backwater end respectively.
Wherein, described valve body is also provided with the first passage be communicated with water-inlet cavity, described first passage is for measuring intake pressure.
Wherein, described valve body is also provided with the second channel be communicated with backwater cavity, described second channel is for measuring pressure of return water.
Wherein, the material of described valve body is spheroidal graphite cast iron.
Wherein, described handwheel is provided with indicating member, described indicating member is used to indicate the number of turns of described hand wheel rotating.
Wherein, described indicating member comprises the first subelement and the second subelement, and described first subelement is used to indicate the whole number of turns of described hand wheel rotating, and described second subelement is used for the position at the described handwheel place of instruction in real time.
Wherein, described seal ring is two O RunddichtringOs.
The utility model has following beneficial effect:
The differential pressure balancing valve that the utility model provides, can convenient and accurately set controlled system pressure reduction (difference of system front end pressure and System Back-end pressure), namely the difference between pressure-sensitive chamber and water-inlet cavity pressure, simultaneously, when change and fluctuation appear in controlled system forefront pressure, the pressure reduction maintained between water-inlet cavity and backwater cavity is fixed and system pressure difference is fixed.In addition, the differential pressure balancing valve in the present invention does not have diaphragm, has higher reliability.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.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 handwheel in differential pressure balancing valve shown in Fig. 1.
Wherein, reference character:
1: handwheel; 2: upper cover; 4: support; 5: little axle; 6: regulating sleeve; 7: pressure-sensitive sleeve; 8: stuffing box gland; 9: lower cover; 11: valve body; 12: stage clip; 13: valve cone; 14: valve seat; 16: adjusting axle; 17: Regulation spring; 18: nut; 30: indicating member; 31: the first indicating members; 32: the second indicating members.90: PRESSURE PIPE; 100: water-inlet cavity; 101: backwater cavity; 102: pressure-sensitive chamber; 103: first passage; 104: second channel.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
The utility model provides a kind of mode of execution of differential pressure balancing valve.The schematic diagram of the differential pressure balancing valve that Fig. 1 provides for present embodiment.As shown in Figure 1, described differential pressure balancing valve comprises valve body 11, upper cover 2, lower cover 9, comprises water flowing chamber in described valve body 11; Described water flowing chamber has the water intake be connected with feed-water end and the backwater mouth be connected with backwater end; Described water intake and backwater mouth are respectively arranged with adpting flange, in order to be connected with feed-water end and backwater end respectively.Described upper cover 2 and lower cover 9 are fixed on valve body 11.Described differential pressure balancing valve also comprises handwheel 1, adjusting axle 16, little axle 5, Regulation spring 17, regulating sleeve 6, pressure-sensitive sleeve 7, valve seat 14, valve cone 13 and stage clip 12.Described adjusting axle 16 is threaded with upper cover 2; Described handwheel 1 is positioned at outside valve body 11, and it is connected with described adjusting axle 16, rotates relative to described upper cover 2 in order to drive described adjusting axle 16; Described Regulation spring 17 is positioned at inside valve body 11, and it is around described adjusting axle 16, and the nut 18 that its top and bottom are installed on described adjusting axle 16 respectively contacts with support 4; It is inner that described regulating sleeve 6 is fixed on valve body 11, and described water flowing chamber is divided into water-inlet cavity 100 and backwater cavity 101 by it; Described little axle 5 upper end is connected with adjusting axle 16; And little axle 5 upper end is also fixed with valve seat 14 and valve cone 13, lower end is provided with pressure-sensitive sleeve 7, and described pressure-sensitive sleeve 7 around described little axle 5, and can slide by relatively described little axle 5; Described stage clip 12 is around described little axle 5, and its top and bottom contact with pressure-sensitive sleeve 7 with valve seat 14 respectively; Described stuffing box gland 8 is arranged between valve body 11 and lower cover 9, and itself and lower cover 9, pressure-sensitive sleeve 7 form pressure-sensitive chamber 102, described lower cover 9 are provided with the impulse piping 90 be communicated with feed-water end in pressure-sensitive chamber 102.
In the present embodiment, can be convenient and accurately set the pressure reduction of controlled system, its detailed process is as follows: first, handwheel 1 center is provided with square hole, and adjusting axle 16 top has square shaft head, and described square hole coordinates with square shaft head, and locked by socket head screw, like this, rotate handwheel 1, adjusting axle 16 can be driven to rotate; When adjusting axle 16 rotates, nut 18 is circumferentially by the restriction of upper cover 2 endoporus, can only move up and down, thus change the retracted position (namely representing the system pressure difference value of setting) of Regulation spring 17, such Regulation spring 17 promotes pressure just corresponding increase or the reduction of pressure-sensitive sleeve 7, thus make the aperture of valve increase or reduce, change the pressure difference between water flowing chamber and pressure-sensitive chamber 102.
In the present embodiment, with the pressure in pressure-sensitive chamber 102 for P1, with the pressure in water-inlet cavity 100 for P2, with the pressure in backwater cavity 102 for P3.Pressure-sensitive sleeve 7 and valve cone 13 are threaded, when the pressure P 1 in pressure-sensitive chamber 102 increases, on valve cone 13 and pressure-sensitive sleeve 7 with, now, the aperture of valve reduces, and the pressure P 2 in water-inlet cavity 100 increases, then its difference DELTA P=P1-P2 therebetween, Δ P remains unchanged.
Described valve body 11 is also provided with the first passage 103 be communicated with water-inlet cavity 100, described first passage 103 is for measuring intake pressure.
Described valve body 11 is also provided with the second channel 104 be communicated with backwater cavity 101, described second channel 104 is for measuring pressure of return water.
The material of described valve body 11 is spheroidal graphite cast iron, and the power that valve body 11 can be made to can bear like this is larger.
Described handwheel 1 is provided with indicating member 30, and described indicating member 30 is used to indicate the number of turns that described handwheel 1 rotates.Particularly, described indicating member 30 comprises the first subelement 31 and the second subelement 32, and described first subelement 31 is used to indicate the whole number of turns that described handwheel 1 rotates, and described second subelement 32 is for indicating the position at described handwheel 1 place in real time.Such as, indicate 2 at the first subelement 31, when the second subelement 32 indicates 3, represent that described handwheel 1 have rotated 2 whole circles, be in the position that rotation 0.3 is enclosed, namely described handwheel 1 have rotated 2.3 circles simultaneously.
Analyze below in conjunction with the working state of accompanying drawing to the differential pressure balancing valve in present embodiment.
In a first scenario, namely increase at pressure of supply water P1, pressure of return water P3 is constant, the supply head (that is: P1-P3) at networking increases, pressure-sensitive sleeve 7 drives on valve cone 13 and moves, namely move to valve closing direction, the resistance (that is: P2-P3) of now valve is increased, namely P2 increases; Otherwise in like manner, when pressure of supply water P1 reduces, pressure of return water P3 is constant, the supply head (that is: P1-P3) at networking reduces, and pressure-sensitive sleeve 7 drives valve cone 13 to move down, and namely moves to valve opening direction, and the resistance of now valve is reduced, and namely P2 reduces.Finally reach state of equilibrium, Δ P=P1-P2, almost constant.Preferably, the differential pressure balancing valve operating pressure differential scope in present embodiment is between 0.4-1.8bar.
In the latter case, the resistance namely when controlled loop inside changes, and such as a certain branch road turns off, and the drag overall of loop increases, this moment, P2 increases, and pressure-sensitive sleeve 7 drives valve cone 13 to move down, namely move to valve opening direction, the resistance of now valve is reduced, P2 reduces again to fall after rise; Otherwise in like manner, the drag overall of loop reduces, and this moment, P2 reduces, and pressure-sensitive sleeve 7 drives on valve cone 13 and moves, and namely moves to valve closing direction, and make the resistance of now valve increase, P2 increases rise again.Finally reach state of equilibrium, Δ P=P1-P2, almost constant.
The differential pressure balancing valve that the utility model provides, can convenient and accurately set controlled system pressure reduction (difference of system front end pressure and System Back-end pressure), namely the difference between pressure-sensitive chamber 102 and water-inlet cavity 100 pressure, simultaneously, when change and fluctuation appear in controlled system forefront pressure, the pressure reduction maintained between water-inlet cavity 100 and backwater cavity 101 is fixed and system pressure difference is fixed.In addition, the differential pressure balancing valve in the utility model does not have diaphragm, has higher reliability.
Be understandable that, the illustrative embodiments that above mode of execution is only used to principle of the present utility model is described and adopts, but this model utility is bright is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (8)
1. a differential pressure balancing valve, comprises valve body, upper cover, lower cover, comprises water flowing chamber in described valve body; Described water flowing chamber has the water intake be connected with feed-water end and the backwater mouth be connected with backwater end; Described upper cover and lower cover are fixed on valve body; It is characterized in that, described differential pressure balancing valve also comprises handwheel, adjusting axle, little axle, Regulation spring, regulating sleeve, pressure-sensitive sleeve, valve seat and stage clip;
Adopt seal ring to seal between described adjusting axle and upper cover, described adjusting axle is connected with nut thread; Described handwheel is positioned at outside valve body, and it is connected with described adjusting axle, rotates relative to described upper cover in order to drive described adjusting axle; Described Regulation spring is positioned at inside valve body, and it is around described adjusting axle, and the nut that its top and bottom are installed on described adjusting axle respectively contacts with support;
Described regulating sleeve is fixed on valve inner, and described water flowing chamber is divided into water-inlet cavity and backwater cavity by it;
Described little axle upper end is connected with support; And regulating sleeve upper end is also fixed with valve seat, described regulating sleeve and being fixedly connected with described valve body, lower end is provided with pressure-sensitive sleeve, pressure-sensitive liner ring is around little axle and fix with little axle, pressure-sensitive sleeve is threaded with valve cone, and pressure-sensitive sleeve can drive little axle, valve cone and support to slide up and down relative to valve seat; Described stage clip around described little axle, and its top and bottom respectively with valve seat and pressure-sensitive barrel contacts; Described stuffing box gland is arranged between valve body and lower cover, and itself and lower cover, pressure-sensitive sleeve form pressure-sensitive chamber, cover the impulse piping being provided with and being communicated with feed-water end in pressure-sensitive chamber under described.
2. differential pressure balancing valve according to claim 1, is characterized in that, described water intake and backwater mouth are respectively arranged with adpting flange, in order to be connected with feed-water end and backwater end respectively.
3. differential pressure balancing valve according to claim 1, is characterized in that, described valve body is also provided with the first passage be communicated with water-inlet cavity, and described first passage is for measuring intake pressure.
4. differential pressure balancing valve according to claim 1, is characterized in that, described valve body is also provided with the second channel be communicated with backwater cavity, and described second channel is for measuring pressure of return water.
5. differential pressure balancing valve according to claim 1, is characterized in that, the material of described valve body is spheroidal graphite cast iron.
6. differential pressure balancing valve according to claim 1, is characterized in that, described handwheel is provided with indicating member, and described indicating member is used to indicate the number of turns of described hand wheel rotating.
7. differential pressure balancing valve according to claim 6, it is characterized in that, described indicating member comprises the first subelement and the second subelement, and described first subelement is used to indicate the whole number of turns of described hand wheel rotating, and described second subelement is used for the position at the described handwheel place of instruction in real time.
8. differential pressure balancing valve according to claim 1, is characterized in that, described seal ring is two O RunddichtringOs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798039.2U CN205078863U (en) | 2015-10-15 | 2015-10-15 | Differential pressure balance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798039.2U CN205078863U (en) | 2015-10-15 | 2015-10-15 | Differential pressure balance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078863U true CN205078863U (en) | 2016-03-09 |
Family
ID=55431273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520798039.2U Withdrawn - After Issue CN205078863U (en) | 2015-10-15 | 2015-10-15 | Differential pressure balance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594342A (en) * | 2015-10-15 | 2017-04-26 | 北京海林绿建节能技术有限公司 | Pressure difference balance valve |
-
2015
- 2015-10-15 CN CN201520798039.2U patent/CN205078863U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594342A (en) * | 2015-10-15 | 2017-04-26 | 北京海林绿建节能技术有限公司 | Pressure difference balance valve |
| CN106594342B (en) * | 2015-10-15 | 2019-03-15 | 北京优能智慧节能科技有限公司 | Differential pressure balancing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207777667U (en) | A kind of flow control valve convenient for adjusting | |
| CN205078863U (en) | Differential pressure balance valve | |
| CN102720867A (en) | Self-operated flow control valve capable of automatically adjusting pressure difference | |
| CN205226508U (en) | Relief valve | |
| CN202789588U (en) | Vertical type fire pump with pressure of water outlet adjustable | |
| CN204225842U (en) | Valve discharging gas under certain pressure | |
| CN206943500U (en) | A kind of Three-way butterfly valve | |
| CN106285580A (en) | A kind of underground throttle device | |
| CN207796132U (en) | A kind of pipeline valve of adjustable flow pressure | |
| CN208365213U (en) | A kind of distribution leak water detdction and hydraulic control device | |
| CN206637174U (en) | A kind of irrigation control valve | |
| CN205036932U (en) | Differential pressure balance valve | |
| CN205806496U (en) | A kind of electric-controlled type air relief valve | |
| CN204253972U (en) | A kind of self-operated differential pressure regulator | |
| CN210890162U (en) | Low-temperature pressure reduction regulating valve | |
| CN106594342B (en) | Differential pressure balancing valve | |
| CN207298002U (en) | A kind of connecting pipe external multifunctional balanced valve | |
| CN204004641U (en) | Dynamic differential pressure balancing valve with locking valve and outlet valve | |
| CN203309328U (en) | Improved water supply regulating valve | |
| CN208503605U (en) | A kind of fluid flow size regulating mechanism | |
| CN206036250U (en) | Pond is butterfly valve for drain pipe | |
| CN204493822U (en) | The reduction valve of mouth pressure can be adjusted | |
| CN205331446U (en) | Take earhole butterfly valve structure | |
| CN110094557A (en) | A kind of adjustable valve | |
| CN205047917U (en) | Static hydraulic balancing valve |
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: 20170510 Address after: 101118 Beijing City, Tongzhou District Song Zhuang Zhen Hao Ge Zhuang Cun Wei Hui Dong 200 meters Patentee after: Beijing British Union Heating Technology Co., Ltd. Address before: 102208 Changping District Huilongguan international information industry base, Beijing Patentee before: BEIJING HAILIN LVJIAN ENERGY SAVING TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180102 Address after: 100176 Beijing Daxing District Beijing economic and Technological Development Zone, Yuncheng street, No. 2, block B, block 603 Patentee 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 Patentee before: Beijing British Union Heating Technology Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160309 Effective date of abandoning: 20190315 |