CN103511695A - Self-power type balance electric control valve - Google Patents
Self-power type balance electric control valve Download PDFInfo
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- CN103511695A CN103511695A CN201310440601.XA CN201310440601A CN103511695A CN 103511695 A CN103511695 A CN 103511695A CN 201310440601 A CN201310440601 A CN 201310440601A CN 103511695 A CN103511695 A CN 103511695A
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- valve
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- slotted hole
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a self-power type balance electric control valve, and belongs to the technical field of adjusting valves. The technical purposes needing to be achieved are to provide the self-power type balance electric control valve which is simple and reasonable in structure and constant in flow rate, and meanwhile the flow rate can be synchronously increased and reduced. According to the technical scheme, a differential pressure adjusting cavity and a flow rate adjusting cavity are arranged inside a valve body, a water inlet cavity communicated with an air inlet is formed inside the differential pressure adjusting cavity, the air inlet cavity is provided with a valve element, an upper pressing ring and a lower pressing ring are fixed on the lower portion of a valve rod, a spring is arranged between the lower pressing ring and a stifle, a rubber diaphragm is arranged between the lower pressing ring and the upper pressing ring, a pressure control cavity is formed between the rubber diaphragm and the stifle, a sleeve valve clack is arranged in the flow rate adjusting cavity, a fluid channel is arranged in the middle of the flow rate adjusting cavity, and the pressure control cavity is communicated with a water outlet of the flow rate adjusting cavity through a connecting pipe. The self-power type balance electric control valve is mainly applied to a building HVAC system and an industrial or civil fluid pipe network distribution system.
Description
Technical field
The present invention relates to a kind of self-powering type balance electric modulating valve, belong to regulating valve technical field.
Background technique
Electric control valve is the integrated product of transient equiliblium and motorized adjustment, mainly be applicable to heating ventilation air-conditioning system end air-conditioning equipment, as the temperature of air-conditioning box, new blower fan group, air processing machine etc. is controlled, by configuration intelligent object control gear, can to the flow of each loop, temperature, automatically control easily, realize and rationally utilize energy, energy-saving and cost-reducing, intelligent management.Apply this valve and make end-equipment only be subject to the impact of standard control signal, and the impact that not fluctuateed by system pressure regulates system more stable, more energy-conservation, be specially adapted to system loading and change in variable flow system greatly.
Electric control valve refers to that valve can be according to the aperture of the automatic regulating valve of variation of target area temperature control signals, thereby changes water flow, finally makes the true temperature of target area consistent with setting temperature.
In current heat supplying air conditioning flow control system, the dynamic electric control valve of use, the flow when valve wide open is logical is difficult to equal the design discharge of controlled system, and often much larger than design discharge, this has just reduced the valve anthority of valve.Most dynamically electric control valves are angle stroke, are difficult to accomplish that aperture and flow synchronous equal amount increase.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved has been to provide a kind of simple and reasonable for structure, constant flow, the self-powering type balance electric modulating valve that flow can synchronously increase and reduce again simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: self-powering type balance electric modulating valve, comprise: valve body, described valve inner is provided with pressure reduction and regulates chamber and Flow-rate adjustment chamber, described pressure reduction regulates on chamber and is provided with water intake, Flow-rate adjustment is provided with water outlet on chamber, described pressure reduction regulates top, chamber to be provided with gland, bottom is provided with stifle, the inner water-inlet cavity being communicated with water intake that is also provided with, on described water-inlet cavity, be provided with the through hole running through up and down, in through hole, be provided with valve rod moving up and down, on valve rod, be provided with spool, spool is corresponding with through hole, described valve rod top is inserted on gland, the bottom of valve rod is fixed with trim ring and lower clamping ring, between described lower clamping ring and stifle, be provided with spring, between lower clamping ring and upper trim ring, be provided with diaphragm of rubber sheet, mineralization pressure control chamber between described diaphragm of rubber sheet and stifle,
Top, described Flow-rate adjustment chamber is provided with valve seat, in described valve seat, be provided with drive link, the lower end of described drive link is provided with telescopic flap, and the middle part in Flow-rate adjustment chamber is provided with internal conical surface and conical surface bottom with the fluid passage of boss, telescopic flap be positioned at fluid passage directly over;
Described pressure control cavity is connected with the water outlet in Flow-rate adjustment chamber by connecting tube.
Described pressure reduction regulates on chamber and is also provided with differential pressure adjusting device, described differential pressure adjusting device comprises modulating valve, the first slotted hole and the second slotted hole, described the first slotted hole is arranged on valve body and regulates chamber to be connected with pressure reduction, the second slotted hole is arranged on stifle and is connected with pressure control cavity, described the first slotted hole is connected with the second slotted hole, on the second slotted hole, is provided with modulating valve.
The beneficial effect that the present invention compared with prior art had is: the present invention is simple and reasonable for structure, integrating pressure reduction regulates and flow control, by the pressure ratio of diaphragm of rubber sheet both sides, regulate valve rod and the spool of interlock, automatically change the valve opening under different pressures, realize the transient equiliblium of flow; Pressure reduction regulates on chamber and is also provided with differential pressure adjusting device simultaneously, when valve opening reaches maximum, when valve flow and design discharge are unequal, by regulating differential pressure adjusting device, make valve flow equal design discharge, so not only improved the valve anthority of valve, it is more accurate also to make to regulate, and controls convenient; And the employing of the flap in Flow-rate adjustment chamber adopts the telescopic balanced force structure of straight journey, between telescopic flap and circulation passage, mutually moves and carries out Flow-rate adjustment, makes the every increase equivalent of valve opening value, and flow value increases equal, and degree of accuracy is higher.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is structural representation of the present invention.
In figure: 1 is valve body, 2 for pressure reduction regulates chamber, and 3 is Flow-rate adjustment chamber, and 4 is water intake, and 5 is water outlet, 6 is gland, and 7 is stifle, and 8 is water-inlet cavity, and 9 is through hole, 10 is valve rod, and 11 is spool, and 12 is upper trim ring, and 13 is lower clamping ring, 14 is spring, and 15 is diaphragm of rubber sheet, and 16 is valve seat, and 17 is drive link, 18 is telescopic flap ，19Wei fluid passage, and 20 is pressure control cavity, and 21 is connecting tube, 22 is differential pressure adjusting device, and 23 is modulating valve, and 24 is the first slotted hole, and 25 is the second slotted hole.
Embodiment
As shown in Figure 1, 1, self-powering type balance electric modulating valve, comprise: valve body 1, it is characterized in that: described valve body 1 inside is provided with pressure reduction and regulates chamber 2 and Flow-rate adjustment chamber 3, described pressure reduction regulates on chamber 2 and is provided with water intake 4, on Flow-rate adjustment chamber 3, be provided with water outlet 5, described pressure reduction regulates 2 tops, chamber to be provided with gland 6, bottom is provided with stifle 7, the inner water-inlet cavity 8 being communicated with water intake 4 that is also provided with, on described water-inlet cavity 8, be provided with the through hole 9 running through up and down, in through hole 9, be provided with valve rod 10 moving up and down, on valve rod 10, be provided with spool 11, spool 11 is corresponding with through hole 9, described valve rod 10 tops are inserted on gland 6, valve rod 10 bottom is fixed with trim ring 12 and lower clamping ring 13, between described lower clamping ring 13 and stifle 7, be provided with spring 14, between lower clamping ring 13 and upper trim ring 12, be provided with diaphragm of rubber sheet 15, mineralization pressure control chamber 20 between described diaphragm of rubber sheet 15 and stifle 7,
3 tops, described Flow-rate adjustment chamber are provided with valve seat 16, in described valve seat 16, be provided with drive link 17, described drive link 17 lower end is provided with telescopic flap 18, the middle part in Flow-rate adjustment chamber 3 is provided with internal conical surface and conical surface bottom with the fluid passage 19 of boss, telescopic flap 18 be positioned at fluid passage 19 directly over;
Described pressure control cavity 20 is connected with the water outlet 5 in Flow-rate adjustment chamber 3 by connecting tube 21.
Described pressure reduction regulates on chamber 2 and is also provided with differential pressure adjusting device 22, described differential pressure adjusting device 22 comprises modulating valve 23, the first slotted hole 24 and the second slotted hole 25, described the first slotted hole 24 is arranged on valve body 1 and regulates chamber 2 to be connected with pressure reduction, the second slotted hole 25 is arranged on stifle 7 and is connected with pressure control cavity 20, described the first slotted hole 24 is connected with the second slotted hole 25, on the second slotted hole 25, is provided with modulating valve 23.
In the present invention, drive link 17 can adopt the telescopic flap 18 of hand wheel component or electric actuator assembly manual tune or motorized adjustment, wherein telescopic flap 18 is same as the prior art, telescopic flap 18He fluid passage 19 coordinates carries out flow control, fluid passage 19 be shaped as internal conical surface, and conical surface bottom is with boss, and telescopic flap 18 moves down under the effect of drive link 17, is pressed on the boss of fluid passage 19, on boss, be provided with seal ring, realize plane sealing.When carrying out Flow-rate adjustment, fluid enters water-inlet cavity 8 through water intake 4, effect due to spring 14, valve rod 10 and spool 11 are the trend moving upward, be the trend that there is increase in gap between spool 11 and through hole 9, fluid backs down spool 11 and enters in pressure reduction adjusting chamber 2, then fluid 19 is flowed out by water outlet 5 through fluid passage, segment fluid flow enters pressure control cavity 20 through connecting tube 21 simultaneously, diaphragm of rubber sheet 15 fluctuates under the effect of hydraulic pressure, finally make the hydraulic pressure of diaphragm of rubber Pian15 both sides reach balance, thereby when the aperture between telescopic flap 18Yu fluid passage 19 increases, flow also synchronous equal amount increases, assurance valve is more easily controlled, flow is more accurate.
When telescopic flap 18 apertures reach maximum, the flow of valve does not reach the design discharge of controlled system simultaneously.When passing through to adjust modulating valve 23, fluid in pressure reduction adjusting chamber 2 is in the first slotted hole 24 and the second slotted hole 25 feed pressure control chambers 20, make diaphragm of rubber sheet 15 interlock valve rod 10 and spools 11, the aperture of valve is increased, thereby the flow that makes valve equals the design discharge of controlled system, use safer, reliably, flow is more easily controlled, and valve regulated is also more accurate.
By reference to the accompanying drawings embodiments of the invention are explained in detail above; but the present invention is not limited to above-described embodiment; in the ken possessing those of ordinary skills; various variations can also be under the prerequisite that does not depart from aim of the present invention, made obtaining, also protection scope of the present invention should be considered as.
Claims (2)
1. self-powering type balance electric modulating valve, comprise: valve body (1), it is characterized in that: described valve body (1) inside is provided with pressure reduction and regulates chamber (2) and Flow-rate adjustment chamber (3), described pressure reduction regulates on chamber (2) and is provided with water intake (4), on Flow-rate adjustment chamber (3), be provided with water outlet (5), described pressure reduction regulates top, chamber (2) to be provided with gland (6), bottom is provided with stifle (7), inside is also provided with the water-inlet cavity (8) being communicated with water intake (4), on described water-inlet cavity (8), be provided with the through hole (9) running through up and down, in through hole (9), be provided with valve rod moving up and down (10), on valve rod (10), be provided with spool (11), spool (11) is corresponding with through hole (9), described valve rod (10) top is inserted on gland (6), the bottom of valve rod (10) is fixed with trim ring (12) and lower clamping ring (13), between described lower clamping ring (13) and stifle (7), be provided with spring (14), between lower clamping ring (13) and upper trim ring (12), be provided with diaphragm of rubber sheet (15), mineralization pressure control chamber (20) between described diaphragm of rubber sheet (15) and stifle (7),
Top, described Flow-rate adjustment chamber (3) is provided with valve seat (16), in described valve seat (16), be provided with drive link (17), the lower end of described drive link (17) is provided with telescopic flap (18), the middle part in Flow-rate adjustment chamber (3) is provided with internal conical surface and conical surface bottom with the fluid passage (19) of boss, telescopic flap (18) be positioned at fluid passage (19) directly over;
Described pressure control cavity (20) is connected with the water outlet (5) of Flow-rate adjustment chamber (3) by connecting tube (21).
2. self-powering type balance electric modulating valve according to claim 1, it is characterized in that: described pressure reduction regulates on chamber (2) and is also provided with differential pressure adjusting device (22), described differential pressure adjusting device (22) comprises modulating valve (23), the first slotted hole (24) and the second slotted hole (25), described the first slotted hole (24) is arranged on valve body (1) and above regulates chamber (2) to be connected with pressure reduction, the second slotted hole (25) is arranged on stifle (7) and is above connected with pressure control cavity (20), described the first slotted hole (24) is connected with the second slotted hole (25), on the second slotted hole (25), be provided with modulating valve (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440601.XA CN103511695B (en) | 2013-09-25 | 2013-09-25 | Self-power type balance electric control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440601.XA CN103511695B (en) | 2013-09-25 | 2013-09-25 | Self-power type balance electric control valve |
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| Publication Number | Publication Date |
|---|---|
| CN103511695A true CN103511695A (en) | 2014-01-15 |
| CN103511695B CN103511695B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310440601.XA Active CN103511695B (en) | 2013-09-25 | 2013-09-25 | Self-power type balance electric control valve |
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| CN (1) | CN103511695B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650302A (en) * | 2016-04-01 | 2016-06-08 | 天津特克执行器有限公司 | High-pressure diaphragm valve provided with balance cavities |
| CN105927774A (en) * | 2016-06-30 | 2016-09-07 | 高继升 | Multifunctional balance valve |
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06331056A (en) * | 1993-05-20 | 1994-11-29 | Kubota Corp | Variable constant flow valve |
| CN201621342U (en) * | 2010-02-09 | 2010-11-03 | 天津银河阀门有限公司 | Dynamic flow balance valve |
| CN203477501U (en) * | 2013-09-25 | 2014-03-12 | 临汾华松阀门制造有限公司 | Self-operated balance electric control valve |
-
2013
- 2013-09-25 CN CN201310440601.XA patent/CN103511695B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06331056A (en) * | 1993-05-20 | 1994-11-29 | Kubota Corp | Variable constant flow valve |
| CN201621342U (en) * | 2010-02-09 | 2010-11-03 | 天津银河阀门有限公司 | Dynamic flow balance valve |
| CN203477501U (en) * | 2013-09-25 | 2014-03-12 | 临汾华松阀门制造有限公司 | Self-operated balance electric control valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650302A (en) * | 2016-04-01 | 2016-06-08 | 天津特克执行器有限公司 | High-pressure diaphragm valve provided with balance cavities |
| CN105927774A (en) * | 2016-06-30 | 2016-09-07 | 高继升 | Multifunctional balance valve |
| CN105927774B (en) * | 2016-06-30 | 2019-01-15 | 高继升 | A kind of Multifunctional balance valve |
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
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| Publication number | Publication date |
|---|---|
| CN103511695B (en) | 2015-08-26 |
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